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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
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
Jamie Iles7ada1892010-02-02 20:24:58 +010021 select HAVE_PERF_EVENTS
22 select PERF_USE_VMALLOC
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"
630 select GENERIC_GPIO
631 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100632 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100633 help
634 Samsung S3C64XX series based systems
635
Byungho Min5a7652f2009-06-23 21:39:42 +0900636config ARCH_S5PC1XX
637 bool "Samsung S5PC1XX"
638 select GENERIC_GPIO
639 select HAVE_CLK
640 select CPU_V7
641 help
642 Samsung S5PC1XX series based systems
643
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644config ARCH_SHARK
645 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000646 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100647 select ISA
648 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100649 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100650 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000651 help
652 Support for the StrongARM based Digital DNARD machine, also known
653 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654
655config ARCH_LH7A40X
656 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000657 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100658 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
659 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660 help
661 Say Y here for systems based on one of the Sharp LH7A40X
662 System on a Chip processors. These CPUs include an ARM922T
663 core with a wide array of integrated devices for
664 hand-held and low-power applications.
665
Linus Walleijd98aac72009-04-27 10:21:46 +0100666config ARCH_U300
667 bool "ST-Ericsson U300 Series"
668 depends on MMU
669 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100670 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100671 select ARM_AMBA
672 select ARM_VIC
673 select GENERIC_TIME
674 select GENERIC_CLOCKEVENTS
675 select HAVE_CLK
676 select COMMON_CLKDEV
677 select GENERIC_GPIO
678 help
679 Support for ST-Ericsson U300 series mobile platforms.
680
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100681config ARCH_DAVINCI
682 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000683 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100684 select GENERIC_TIME
685 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100686 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700687 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700688 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100689 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700690 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700691 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700692 select GENERIC_ALLOCATOR
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100693 help
694 Support for TI's DaVinci platform.
695
Russell King3b938be2007-05-12 11:25:44 +0100696config ARCH_OMAP
697 bool "TI OMAP"
698 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700699 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700700 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100701 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100702 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700703 select GENERIC_CLOCKEVENTS
Russell King3b938be2007-05-12 11:25:44 +0100704 help
705 Support for TI's OMAP platform (OMAP1 and OMAP2).
706
Leo Chen6288e282009-08-07 19:46:15 +0100707config ARCH_BCMRING
708 bool "Broadcom BCMRING"
709 depends on MMU
710 select CPU_V6
711 select ARM_AMBA
712 select COMMON_CLKDEV
713 select GENERIC_TIME
714 select GENERIC_CLOCKEVENTS
715 select ARCH_WANT_OPTIONAL_GPIOLIB
716 help
717 Support for Broadcom's BCMRing platform.
718
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100719config ARCH_U8500
720 bool "ST-Ericsson U8500 Series"
721 select CPU_V7
722 select ARM_AMBA
723 select GENERIC_TIME
724 select GENERIC_CLOCKEVENTS
725 select COMMON_CLKDEV
726 help
727 Support for ST-Ericsson's Ux500 architecture
728
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729endchoice
730
731source "arch/arm/mach-clps711x/Kconfig"
732
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000733source "arch/arm/mach-ep93xx/Kconfig"
734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735source "arch/arm/mach-footbridge/Kconfig"
736
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200737source "arch/arm/mach-gemini/Kconfig"
738
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739source "arch/arm/mach-integrator/Kconfig"
740
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100741source "arch/arm/mach-iop32x/Kconfig"
742
743source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744
Dan Williams285f5fa2006-12-07 02:59:39 +0100745source "arch/arm/mach-iop13xx/Kconfig"
746
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747source "arch/arm/mach-ixp4xx/Kconfig"
748
749source "arch/arm/mach-ixp2000/Kconfig"
750
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100751source "arch/arm/mach-ixp23xx/Kconfig"
752
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200753source "arch/arm/mach-loki/Kconfig"
754
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200755source "arch/arm/mach-mv78xx0/Kconfig"
756
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757source "arch/arm/mach-pxa/Kconfig"
Eric Miaobd5ce432009-01-20 12:06:01 +0800758source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759
Eric Miao49cbe782009-01-20 14:15:18 +0800760source "arch/arm/mach-mmp/Kconfig"
761
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762source "arch/arm/mach-sa1100/Kconfig"
763
Tony Lindgrend48af152005-07-10 19:58:17 +0100764source "arch/arm/plat-omap/Kconfig"
765
766source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
Tony Lindgren1dbae812005-11-10 14:26:51 +0000768source "arch/arm/mach-omap2/Kconfig"
769
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400770source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400771
Saeed Bishara651c74c2008-06-22 22:45:06 +0200772source "arch/arm/mach-kirkwood/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773
Saeed Bisharaedabd382009-08-06 15:12:43 +0300774source "arch/arm/mach-dove/Kconfig"
775
Ben Dookscf383672009-11-10 00:14:58 +0000776source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100777source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100778source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100779source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900780source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100781
782if ARCH_S3C2410
783source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100785source "arch/arm/mach-s3c2412/Kconfig"
786source "arch/arm/mach-s3c2440/Kconfig"
787source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100788source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100789endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790
Ben Dooksa08ab632008-10-21 14:06:39 +0100791if ARCH_S3C64XX
792source "arch/arm/mach-s3c6400/Kconfig"
793source "arch/arm/mach-s3c6410/Kconfig"
794endif
795
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100796source "arch/arm/plat-stmp3xxx/Kconfig"
797
Byungho Min5a7652f2009-06-23 21:39:42 +0900798if ARCH_S5PC1XX
799source "arch/arm/mach-s5pc100/Kconfig"
800endif
801
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802source "arch/arm/mach-lh7a40x/Kconfig"
803
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804source "arch/arm/mach-h720x/Kconfig"
805
806source "arch/arm/mach-versatile/Kconfig"
807
Bellido Nicolas038c5b62005-06-20 18:51:05 +0100808source "arch/arm/mach-aaec2000/Kconfig"
809
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000810source "arch/arm/mach-realview/Kconfig"
811
Andrew Victor9d041262007-02-05 11:42:07 +0100812source "arch/arm/mach-at91/Kconfig"
SAN People73a59c12006-01-09 17:05:41 +0000813
Quinn Jensen52c543f2007-07-09 22:06:53 +0100814source "arch/arm/plat-mxc/Kconfig"
815
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100816source "arch/arm/mach-nomadik/Kconfig"
Srinidhi Kasagar59b559d2009-11-12 06:20:54 +0100817source "arch/arm/plat-nomadik/Kconfig"
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100818
Sascha Hauerbb6d8c82006-06-19 15:27:53 +0100819source "arch/arm/mach-netx/Kconfig"
820
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100821source "arch/arm/mach-ns9xxx/Kconfig"
822
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100823source "arch/arm/mach-davinci/Kconfig"
824
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100825source "arch/arm/mach-ks8695/Kconfig"
826
Brian Swetland9e73c842007-11-26 04:12:13 -0800827source "arch/arm/mach-msm/Kconfig"
828
Linus Walleijd98aac72009-04-27 10:21:46 +0100829source "arch/arm/mach-u300/Kconfig"
830
wanzongshun7ec80dd2008-12-03 03:55:38 +0100831source "arch/arm/mach-w90x900/Kconfig"
832
Leo Chen6288e282009-08-07 19:46:15 +0100833source "arch/arm/mach-bcmring/Kconfig"
834
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100835source "arch/arm/mach-ux500/Kconfig"
836
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837# Definitions to make life easier
838config ARCH_ACORN
839 bool
840
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100841config PLAT_IOP
842 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700843 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700844 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100845
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400846config PLAT_ORION
847 bool
848
Eric Miaobd5ce432009-01-20 12:06:01 +0800849config PLAT_PXA
850 bool
851
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852source arch/arm/mm/Kconfig
853
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100854config IWMMXT
855 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800856 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
857 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100858 help
859 Enable support for iWMMXt context switching at run time if
860 running on a CPU that supports it.
861
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
863config XSCALE_PMU
864 bool
865 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
866 default y
867
Jamie Iles0f4f0672010-02-02 20:23:15 +0100868config CPU_HAS_PMU
869 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
870 default y
871 bool
872
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100873if !MMU
874source "arch/arm/Kconfig-nommu"
875endif
876
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100877config ARM_ERRATA_411920
878 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
879 depends on CPU_V6 && !SMP
880 help
881 Invalidation of the Instruction Cache operation can
882 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
883 It does not affect the MPCore. This option enables the ARM Ltd.
884 recommended workaround.
885
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100886config ARM_ERRATA_430973
887 bool "ARM errata: Stale prediction on replaced interworking branch"
888 depends on CPU_V7
889 help
890 This option enables the workaround for the 430973 Cortex-A8
891 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
892 interworking branch is replaced with another code sequence at the
893 same virtual address, whether due to self-modifying code or virtual
894 to physical address re-mapping, Cortex-A8 does not recover from the
895 stale interworking branch prediction. This results in Cortex-A8
896 executing the new code sequence in the incorrect ARM or Thumb state.
897 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
898 and also flushes the branch target cache at every context switch.
899 Note that setting specific bits in the ACTLR register may not be
900 available in non-secure mode.
901
Catalin Marinas855c5512009-04-30 17:06:15 +0100902config ARM_ERRATA_458693
903 bool "ARM errata: Processor deadlock when a false hazard is created"
904 depends on CPU_V7
905 help
906 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
907 erratum. For very specific sequences of memory operations, it is
908 possible for a hazard condition intended for a cache line to instead
909 be incorrectly associated with a different cache line. This false
910 hazard might then cause a processor deadlock. The workaround enables
911 the L1 caching of the NEON accesses and disables the PLD instruction
912 in the ACTLR register. Note that setting specific bits in the ACTLR
913 register may not be available in non-secure mode.
914
Catalin Marinas0516e462009-04-30 17:06:20 +0100915config ARM_ERRATA_460075
916 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
917 depends on CPU_V7
918 help
919 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
920 erratum. Any asynchronous access to the L2 cache may encounter a
921 situation in which recent store transactions to the L2 cache are lost
922 and overwritten with stale memory contents from external memory. The
923 workaround disables the write-allocate mode for the L2 cache via the
924 ACTLR register. Note that setting specific bits in the ACTLR register
925 may not be available in non-secure mode.
926
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927endmenu
928
929source "arch/arm/common/Kconfig"
930
931config FORCE_MAX_ZONEORDER
932 int
933 depends on SA1111
934 default "9"
935
936menu "Bus support"
937
938config ARM_AMBA
939 bool
940
941config ISA
942 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943 help
944 Find out whether you have ISA slots on your motherboard. ISA is the
945 name of a bus system, i.e. the way the CPU talks to the other stuff
946 inside your box. Other bus systems are PCI, EISA, MicroChannel
947 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
948 newer boards don't support it. If you have ISA, say Y, otherwise N.
949
Russell King065909b2006-01-04 15:44:16 +0000950# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951config ISA_DMA
952 bool
Russell King065909b2006-01-04 15:44:16 +0000953 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Russell King065909b2006-01-04 15:44:16 +0000955# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100956config ISA_DMA_API
957 bool
Al Viro5cae8412005-05-04 05:39:22 +0100958
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100960 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961 help
962 Find out whether you have a PCI motherboard. PCI is the name of a
963 bus system, i.e. the way the CPU talks to the other stuff inside
964 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
965 VESA. If you have PCI, say Y, otherwise N.
966
Matthew Wilcox36e23592007-07-10 10:54:40 -0600967config PCI_SYSCALL
968 def_bool PCI
969
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970# Select the host bridge type
971config PCI_HOST_VIA82C505
972 bool
973 depends on PCI && ARCH_SHARK
974 default y
975
Mike Rapoporta0113a92007-11-25 08:55:34 +0100976config PCI_HOST_ITE8152
977 bool
978 depends on PCI && MACH_ARMCORE
979 default y
980 select DMABOUNCE
981
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982source "drivers/pci/Kconfig"
983
984source "drivers/pcmcia/Kconfig"
985
986endmenu
987
988menu "Kernel Features"
989
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100990source "kernel/time/Kconfig"
991
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992config SMP
993 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100994 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100995 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +0100996 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200997 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100998 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 help
1000 This enables support for systems with more than one CPU. If you have
1001 a system with only one CPU, like most personal computers, say N. If
1002 you have a system with more than one CPU, say Y.
1003
1004 If you say N here, the kernel will run on single and multiprocessor
1005 machines, but will use only one CPU of a multiprocessor machine. If
1006 you say Y here, the kernel will run on many, but not all, single
1007 processor machines. On a single processor machine, the kernel will
1008 run faster if you say N here.
1009
Adrian Bunk03502fa2008-02-03 15:50:21 +02001010 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1012 <http://www.linuxdoc.org/docs.html#howto>.
1013
1014 If you don't know what to do here, say N.
1015
Russell Kinga8cbcd92009-05-16 11:51:14 +01001016config HAVE_ARM_SCU
1017 bool
1018 depends on SMP
1019 help
1020 This option enables support for the ARM system coherency unit
1021
Russell Kingf32f4ce2009-05-16 12:14:21 +01001022config HAVE_ARM_TWD
1023 bool
1024 depends on SMP
1025 help
1026 This options enables support for the ARM timer and watchdog unit
1027
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001028choice
1029 prompt "Memory split"
1030 default VMSPLIT_3G
1031 help
1032 Select the desired split between kernel and user memory.
1033
1034 If you are not absolutely sure what you are doing, leave this
1035 option alone!
1036
1037 config VMSPLIT_3G
1038 bool "3G/1G user/kernel split"
1039 config VMSPLIT_2G
1040 bool "2G/2G user/kernel split"
1041 config VMSPLIT_1G
1042 bool "1G/3G user/kernel split"
1043endchoice
1044
1045config PAGE_OFFSET
1046 hex
1047 default 0x40000000 if VMSPLIT_1G
1048 default 0x80000000 if VMSPLIT_2G
1049 default 0xC0000000
1050
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051config NR_CPUS
1052 int "Maximum number of CPUs (2-32)"
1053 range 2 32
1054 depends on SMP
1055 default "4"
1056
Russell Kinga054a812005-11-02 22:24:33 +00001057config HOTPLUG_CPU
1058 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1059 depends on SMP && HOTPLUG && EXPERIMENTAL
1060 help
1061 Say Y here to experiment with turning CPUs off and on. CPUs
1062 can be controlled through /sys/devices/system/cpu.
1063
Russell King37ee16a2005-11-08 19:08:05 +00001064config LOCAL_TIMERS
1065 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001066 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001067 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001068 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001069 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001070 help
1071 Enable support for local timers on SMP platforms, rather then the
1072 legacy IPI broadcast method. Local timers allows the system
1073 accounting to be spread across the timer interval, preventing a
1074 "thundering herd" at every timer tick.
1075
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001076source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Russell Kingf8065812006-03-02 22:41:59 +00001078config HZ
1079 int
1080 default 128 if ARCH_L7200
1081 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001082 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001083 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001084 default 100
1085
Catalin Marinas16c79652009-07-24 12:33:02 +01001086config THUMB2_KERNEL
1087 bool "Compile the kernel in Thumb-2 mode"
1088 depends on CPU_V7 && EXPERIMENTAL
1089 select AEABI
1090 select ARM_ASM_UNIFIED
1091 help
1092 By enabling this option, the kernel will be compiled in
1093 Thumb-2 mode. A compiler/assembler that understand the unified
1094 ARM-Thumb syntax is needed.
1095
1096 If unsure, say N.
1097
Catalin Marinas0becb082009-07-24 12:32:53 +01001098config ARM_ASM_UNIFIED
1099 bool
1100
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001101config AEABI
1102 bool "Use the ARM EABI to compile the kernel"
1103 help
1104 This option allows for the kernel to be compiled using the latest
1105 ARM ABI (aka EABI). This is only useful if you are using a user
1106 space environment that is also compiled with EABI.
1107
1108 Since there are major incompatibilities between the legacy ABI and
1109 EABI, especially with regard to structure member alignment, this
1110 option also changes the kernel syscall calling convention to
1111 disambiguate both ABIs and allow for backward compatibility support
1112 (selected with CONFIG_OABI_COMPAT).
1113
1114 To use this you need GCC version 4.0.0 or later.
1115
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001116config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001117 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001118 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001119 default y
1120 help
1121 This option preserves the old syscall interface along with the
1122 new (ARM EABI) one. It also provides a compatibility layer to
1123 intercept syscalls that have structure arguments which layout
1124 in memory differs between the legacy ABI and the new ARM EABI
1125 (only for non "thumb" binaries). This option adds a tiny
1126 overhead to all syscalls and produces a slightly larger kernel.
1127 If you know you'll be using only pure EABI user space then you
1128 can say N here. If this option is not selected and you attempt
1129 to execute a legacy ABI binary then the result will be
1130 UNPREDICTABLE (in fact it can be predicted that it won't work
1131 at all). If in doubt say Y.
1132
Mel Gormaneb335752009-05-13 17:34:48 +01001133config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001134 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001135
Russell King07a2f732008-10-01 21:39:58 +01001136# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001137config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139
Russell King05944d72006-11-30 20:43:51 +00001140config ARCH_SPARSEMEM_ENABLE
1141 bool
1142
Russell King07a2f732008-10-01 21:39:58 +01001143config ARCH_SPARSEMEM_DEFAULT
1144 def_bool ARCH_SPARSEMEM_ENABLE
1145
Russell King05944d72006-11-30 20:43:51 +00001146config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001147 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001148
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001149config NODES_SHIFT
1150 int
1151 default "4" if ARCH_LH7A40X
1152 default "2"
1153 depends on NEED_MULTIPLE_NODES
1154
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001155config HIGHMEM
1156 bool "High Memory Support (EXPERIMENTAL)"
1157 depends on MMU && EXPERIMENTAL
1158 help
1159 The address space of ARM processors is only 4 Gigabytes large
1160 and it has to accommodate user address space, kernel address
1161 space as well as some memory mapped IO. That means that, if you
1162 have a large amount of physical memory and/or IO, not all of the
1163 memory can be "permanently mapped" by the kernel. The physical
1164 memory that is not permanently mapped is called "high memory".
1165
1166 Depending on the selected kernel/user memory split, minimum
1167 vmalloc space and actual amount of RAM, you may not need this
1168 option which should result in a slightly faster kernel.
1169
1170 If unsure, say n.
1171
Russell King65cec8e2009-08-17 20:02:06 +01001172config HIGHPTE
1173 bool "Allocate 2nd-level pagetables from highmem"
1174 depends on HIGHMEM
1175 depends on !OUTER_CACHE
1176
Jamie Iles1b8873a2010-02-02 20:25:44 +01001177config HW_PERF_EVENTS
1178 bool "Enable hardware performance counter support for perf events"
1179 depends on PERF_EVENTS && CPU_HAS_PMU && CPU_V6
1180 default y
1181 help
1182 Enable hardware performance counter support for perf events. If
1183 disabled, perf events will use software events only.
1184
Dave Hansen3f22ab22005-06-23 00:07:43 -07001185source "mm/Kconfig"
1186
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187config LEDS
1188 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001189 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001190 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1192 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001193 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001194 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001195 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 help
1197 If you say Y here, the LEDs on your machine will be used
1198 to provide useful information about your current system status.
1199
1200 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1201 be able to select which LEDs are active using the options below. If
1202 you are compiling a kernel for the EBSA-110 or the LART however, the
1203 red LED will simply flash regularly to indicate that the system is
1204 still functional. It is safe to say Y here if you have a CATS
1205 system, but the driver will do nothing.
1206
1207config LEDS_TIMER
1208 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001209 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1210 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001212 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 default y if ARCH_EBSA110
1214 help
1215 If you say Y here, one of the system LEDs (the green one on the
1216 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1217 will flash regularly to indicate that the system is still
1218 operational. This is mainly useful to kernel hackers who are
1219 debugging unstable kernels.
1220
1221 The LART uses the same LED for both Timer LED and CPU usage LED
1222 functions. You may choose to use both, but the Timer LED function
1223 will overrule the CPU usage LED.
1224
1225config LEDS_CPU
1226 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001227 !ARCH_OMAP) \
1228 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1229 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001230 depends on LEDS
1231 help
1232 If you say Y here, the red LED will be used to give a good real
1233 time indication of CPU usage, by lighting whenever the idle task
1234 is not currently executing.
1235
1236 The LART uses the same LED for both Timer LED and CPU usage LED
1237 functions. You may choose to use both, but the Timer LED function
1238 will overrule the CPU usage LED.
1239
1240config ALIGNMENT_TRAP
1241 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001242 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 default y if !ARCH_EBSA110
1244 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001245 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1247 address divisible by 4. On 32-bit ARM processors, these non-aligned
1248 fetch/store instructions will be emulated in software if you say
1249 here, which has a severe performance impact. This is necessary for
1250 correct operation of some network protocols. With an IP-only
1251 configuration it is safe to say N, otherwise say Y.
1252
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001253config UACCESS_WITH_MEMCPY
1254 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1255 depends on MMU && EXPERIMENTAL
1256 default y if CPU_FEROCEON
1257 help
1258 Implement faster copy_to_user and clear_user methods for CPU
1259 cores where a 8-word STM instruction give significantly higher
1260 memory write throughput than a sequence of individual 32bit stores.
1261
1262 A possible side effect is a slight increase in scheduling latency
1263 between threads sharing the same address space if they invoke
1264 such copy operations with large buffers.
1265
1266 However, if the CPU data cache is using a write-allocate mode,
1267 this option is unlikely to provide any performance gain.
1268
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269endmenu
1270
1271menu "Boot options"
1272
1273# Compressed boot loader in ROM. Yes, we really want to ask about
1274# TEXT and BSS so we preserve their values in the config files.
1275config ZBOOT_ROM_TEXT
1276 hex "Compressed ROM boot loader base address"
1277 default "0"
1278 help
1279 The physical address at which the ROM-able zImage is to be
1280 placed in the target. Platforms which normally make use of
1281 ROM-able zImage formats normally set this to a suitable
1282 value in their defconfig file.
1283
1284 If ZBOOT_ROM is not enabled, this has no effect.
1285
1286config ZBOOT_ROM_BSS
1287 hex "Compressed ROM boot loader BSS address"
1288 default "0"
1289 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001290 The base address of an area of read/write memory in the target
1291 for the ROM-able zImage which must be available while the
1292 decompressor is running. It must be large enough to hold the
1293 entire decompressed kernel plus an additional 128 KiB.
1294 Platforms which normally make use of ROM-able zImage formats
1295 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296
1297 If ZBOOT_ROM is not enabled, this has no effect.
1298
1299config ZBOOT_ROM
1300 bool "Compressed boot loader in ROM/flash"
1301 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1302 help
1303 Say Y here if you intend to execute your compressed kernel image
1304 (zImage) directly from ROM or flash. If unsure, say N.
1305
1306config CMDLINE
1307 string "Default kernel command string"
1308 default ""
1309 help
1310 On some architectures (EBSA110 and CATS), there is currently no way
1311 for the boot loader to pass arguments to the kernel. For these
1312 architectures, you should supply some command-line options at build
1313 time by entering them here. As a minimum, you should specify the
1314 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1315
1316config XIP_KERNEL
1317 bool "Kernel Execute-In-Place from ROM"
1318 depends on !ZBOOT_ROM
1319 help
1320 Execute-In-Place allows the kernel to run from non-volatile storage
1321 directly addressable by the CPU, such as NOR flash. This saves RAM
1322 space since the text section of the kernel is not loaded from flash
1323 to RAM. Read-write sections, such as the data section and stack,
1324 are still copied to RAM. The XIP kernel is not compressed since
1325 it has to run directly from flash, so it will take more space to
1326 store it. The flash address used to link the kernel object files,
1327 and for storing it, is configuration dependent. Therefore, if you
1328 say Y here, you must know the proper physical address where to
1329 store the kernel image depending on your own flash memory usage.
1330
1331 Also note that the make target becomes "make xipImage" rather than
1332 "make zImage" or "make Image". The final kernel binary to put in
1333 ROM memory will be arch/arm/boot/xipImage.
1334
1335 If unsure, say N.
1336
1337config XIP_PHYS_ADDR
1338 hex "XIP Kernel Physical Location"
1339 depends on XIP_KERNEL
1340 default "0x00080000"
1341 help
1342 This is the physical address in your flash memory the kernel will
1343 be linked for and stored to. This address is dependent on your
1344 own flash usage.
1345
Richard Purdiec587e4a2007-02-06 21:29:00 +01001346config KEXEC
1347 bool "Kexec system call (EXPERIMENTAL)"
1348 depends on EXPERIMENTAL
1349 help
1350 kexec is a system call that implements the ability to shutdown your
1351 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001352 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001353 you can start any kernel with it, not just Linux.
1354
1355 It is an ongoing process to be certain the hardware in a machine
1356 is properly shutdown, so do not be surprised if this code does not
1357 initially work for you. It may help to enable device hotplugging
1358 support.
1359
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001360config ATAGS_PROC
1361 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001362 depends on KEXEC
1363 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001364 help
1365 Should the atags used to boot the kernel be exported in an "atags"
1366 file in procfs. Useful with kexec.
1367
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368endmenu
1369
Russell Kingac9d7ef2008-08-18 17:26:00 +01001370menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371
Ben Dooks89c52ed2009-07-30 23:23:24 +01001372if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373
1374source "drivers/cpufreq/Kconfig"
1375
1376config CPU_FREQ_SA1100
1377 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378
1379config CPU_FREQ_SA1110
1380 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381
1382config CPU_FREQ_INTEGRATOR
1383 tristate "CPUfreq driver for ARM Integrator CPUs"
1384 depends on ARCH_INTEGRATOR && CPU_FREQ
1385 default y
1386 help
1387 This enables the CPUfreq driver for ARM Integrator CPUs.
1388
1389 For details, take a look at <file:Documentation/cpu-freq>.
1390
1391 If in doubt, say Y.
1392
Russell King9e2697f2007-12-14 13:30:14 +00001393config CPU_FREQ_PXA
1394 bool
1395 depends on CPU_FREQ && ARCH_PXA && PXA25x
1396 default y
1397 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1398
Mark Brownb3748dd2009-06-15 11:23:20 +01001399config CPU_FREQ_S3C64XX
1400 bool "CPUfreq support for Samsung S3C64XX CPUs"
1401 depends on CPU_FREQ && CPU_S3C6410
1402
Ben Dooks9d56c022009-07-30 23:23:25 +01001403config CPU_FREQ_S3C
1404 bool
1405 help
1406 Internal configuration node for common cpufreq on Samsung SoC
1407
1408config CPU_FREQ_S3C24XX
1409 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1410 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1411 select CPU_FREQ_S3C
1412 help
1413 This enables the CPUfreq driver for the Samsung S3C24XX family
1414 of CPUs.
1415
1416 For details, take a look at <file:Documentation/cpu-freq>.
1417
1418 If in doubt, say N.
1419
1420config CPU_FREQ_S3C24XX_PLL
1421 bool "Support CPUfreq changing of PLL frequency"
1422 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1423 help
1424 Compile in support for changing the PLL frequency from the
1425 S3C24XX series CPUfreq driver. The PLL takes time to settle
1426 after a frequency change, so by default it is not enabled.
1427
1428 This also means that the PLL tables for the selected CPU(s) will
1429 be built which may increase the size of the kernel image.
1430
1431config CPU_FREQ_S3C24XX_DEBUG
1432 bool "Debug CPUfreq Samsung driver core"
1433 depends on CPU_FREQ_S3C24XX
1434 help
1435 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1436
1437config CPU_FREQ_S3C24XX_IODEBUG
1438 bool "Debug CPUfreq Samsung driver IO timing"
1439 depends on CPU_FREQ_S3C24XX
1440 help
1441 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1442
Ben Dookse6d197a2009-07-30 23:23:42 +01001443config CPU_FREQ_S3C24XX_DEBUGFS
1444 bool "Export debugfs for CPUFreq"
1445 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1446 help
1447 Export status information via debugfs.
1448
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449endif
1450
Russell Kingac9d7ef2008-08-18 17:26:00 +01001451source "drivers/cpuidle/Kconfig"
1452
1453endmenu
1454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455menu "Floating point emulation"
1456
1457comment "At least one emulation must be selected"
1458
1459config FPE_NWFPE
1460 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001461 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462 ---help---
1463 Say Y to include the NWFPE floating point emulator in the kernel.
1464 This is necessary to run most binaries. Linux does not currently
1465 support floating point hardware so you need to say Y here even if
1466 your machine has an FPA or floating point co-processor podule.
1467
1468 You may say N here if you are going to load the Acorn FPEmulator
1469 early in the bootup.
1470
1471config FPE_NWFPE_XP
1472 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001473 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 help
1475 Say Y to include 80-bit support in the kernel floating-point
1476 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1477 Note that gcc does not generate 80-bit operations by default,
1478 so in most cases this option only enlarges the size of the
1479 floating point emulator without any good reason.
1480
1481 You almost surely want to say N here.
1482
1483config FPE_FASTFPE
1484 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001485 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 ---help---
1487 Say Y here to include the FAST floating point emulator in the kernel.
1488 This is an experimental much faster emulator which now also has full
1489 precision for the mantissa. It does not support any exceptions.
1490 It is very simple, and approximately 3-6 times faster than NWFPE.
1491
1492 It should be sufficient for most programs. It may be not suitable
1493 for scientific calculations, but you have to check this for yourself.
1494 If you do not feel you need a faster FP emulation you should better
1495 choose NWFPE.
1496
1497config VFP
1498 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001499 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 help
1501 Say Y to include VFP support code in the kernel. This is needed
1502 if your hardware includes a VFP unit.
1503
1504 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1505 release notes and additional status information.
1506
1507 Say N if your target does not have VFP hardware.
1508
Catalin Marinas25ebee02007-09-25 15:22:24 +01001509config VFPv3
1510 bool
1511 depends on VFP
1512 default y if CPU_V7
1513
Catalin Marinasb5872db2008-01-10 19:16:17 +01001514config NEON
1515 bool "Advanced SIMD (NEON) Extension support"
1516 depends on VFPv3 && CPU_V7
1517 help
1518 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1519 Extension.
1520
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521endmenu
1522
1523menu "Userspace binary formats"
1524
1525source "fs/Kconfig.binfmt"
1526
1527config ARTHUR
1528 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001529 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530 help
1531 Say Y here to include the kernel code necessary if you want to run
1532 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1533 experimental; if this sounds frightening, say N and sleep in peace.
1534 You can also say M here to compile this support as a module (which
1535 will be called arthur).
1536
1537endmenu
1538
1539menu "Power management options"
1540
Russell Kingeceab4a2005-11-15 11:31:41 +00001541source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542
Johannes Bergf4cb5702007-12-08 02:14:00 +01001543config ARCH_SUSPEND_POSSIBLE
1544 def_bool y
1545
Linus Torvalds1da177e2005-04-16 15:20:36 -07001546endmenu
1547
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001548source "net/Kconfig"
1549
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001550source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001551
1552source "fs/Kconfig"
1553
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554source "arch/arm/Kconfig.debug"
1555
1556source "security/Kconfig"
1557
1558source "crypto/Kconfig"
1559
1560source "lib/Kconfig"