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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
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
Magnus Dammc793c1b2010-02-05 11:14:49 +0000587config ARCH_SHMOBILE
588 bool "Renesas SH-Mobile"
589 help
590 Support for Renesas's SH-Mobile ARM platforms
591
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592config ARCH_RPC
593 bool "RiscPC"
594 select ARCH_ACORN
595 select FIQ
596 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100597 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100598 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000599 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000600 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100601 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 help
603 On the Acorn Risc-PC, Linux can support the internal IDE disk and
604 CD-ROM interface, serial and parallel port, and the floppy drive.
605
606config ARCH_SA1100
607 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000608 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100609 select ISA
Russell King05944d72006-11-30 20:43:51 +0000610 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500611 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100612 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000613 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800614 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000615 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100616 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700617 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100618 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700619 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000620 help
621 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622
623config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100624 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800625 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100626 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700627 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 help
629 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
630 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000631 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
Ben Dooksa08ab632008-10-21 14:06:39 +0100633config ARCH_S3C64XX
634 bool "Samsung S3C64XX"
635 select GENERIC_GPIO
636 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100637 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100638 help
639 Samsung S3C64XX series based systems
640
Byungho Min5a7652f2009-06-23 21:39:42 +0900641config ARCH_S5PC1XX
642 bool "Samsung S5PC1XX"
643 select GENERIC_GPIO
644 select HAVE_CLK
645 select CPU_V7
646 help
647 Samsung S5PC1XX series based systems
648
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649config ARCH_SHARK
650 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000651 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100652 select ISA
653 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100654 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100655 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000656 help
657 Support for the StrongARM based Digital DNARD machine, also known
658 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659
660config ARCH_LH7A40X
661 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000662 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100663 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
664 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 help
666 Say Y here for systems based on one of the Sharp LH7A40X
667 System on a Chip processors. These CPUs include an ARM922T
668 core with a wide array of integrated devices for
669 hand-held and low-power applications.
670
Linus Walleijd98aac72009-04-27 10:21:46 +0100671config ARCH_U300
672 bool "ST-Ericsson U300 Series"
673 depends on MMU
674 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100675 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100676 select ARM_AMBA
677 select ARM_VIC
678 select GENERIC_TIME
679 select GENERIC_CLOCKEVENTS
680 select HAVE_CLK
681 select COMMON_CLKDEV
682 select GENERIC_GPIO
683 help
684 Support for ST-Ericsson U300 series mobile platforms.
685
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100686config ARCH_DAVINCI
687 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000688 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100689 select GENERIC_TIME
690 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100691 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700692 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700693 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100694 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700695 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700696 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700697 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530698 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100699 help
700 Support for TI's DaVinci platform.
701
Russell King3b938be2007-05-12 11:25:44 +0100702config ARCH_OMAP
703 bool "TI OMAP"
704 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700705 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700706 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100707 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100708 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700709 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800710 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100711 help
712 Support for TI's OMAP platform (OMAP1 and OMAP2).
713
Leo Chen6288e282009-08-07 19:46:15 +0100714config ARCH_BCMRING
715 bool "Broadcom BCMRING"
716 depends on MMU
717 select CPU_V6
718 select ARM_AMBA
719 select COMMON_CLKDEV
720 select GENERIC_TIME
721 select GENERIC_CLOCKEVENTS
722 select ARCH_WANT_OPTIONAL_GPIOLIB
723 help
724 Support for Broadcom's BCMRing platform.
725
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100726config ARCH_U8500
727 bool "ST-Ericsson U8500 Series"
728 select CPU_V7
729 select ARM_AMBA
730 select GENERIC_TIME
731 select GENERIC_CLOCKEVENTS
732 select COMMON_CLKDEV
733 help
734 Support for ST-Ericsson's Ux500 architecture
735
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736endchoice
737
Russell King95b8f202010-01-14 11:43:54 +0000738source "arch/arm/mach-aaec2000/Kconfig"
739
740source "arch/arm/mach-at91/Kconfig"
741
742source "arch/arm/mach-bcmring/Kconfig"
743
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744source "arch/arm/mach-clps711x/Kconfig"
745
Russell King95b8f202010-01-14 11:43:54 +0000746source "arch/arm/mach-davinci/Kconfig"
747
748source "arch/arm/mach-dove/Kconfig"
749
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000750source "arch/arm/mach-ep93xx/Kconfig"
751
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752source "arch/arm/mach-footbridge/Kconfig"
753
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200754source "arch/arm/mach-gemini/Kconfig"
755
Russell King95b8f202010-01-14 11:43:54 +0000756source "arch/arm/mach-h720x/Kconfig"
757
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758source "arch/arm/mach-integrator/Kconfig"
759
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100760source "arch/arm/mach-iop32x/Kconfig"
761
762source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
Dan Williams285f5fa2006-12-07 02:59:39 +0100764source "arch/arm/mach-iop13xx/Kconfig"
765
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766source "arch/arm/mach-ixp4xx/Kconfig"
767
768source "arch/arm/mach-ixp2000/Kconfig"
769
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100770source "arch/arm/mach-ixp23xx/Kconfig"
771
Russell King95b8f202010-01-14 11:43:54 +0000772source "arch/arm/mach-kirkwood/Kconfig"
773
774source "arch/arm/mach-ks8695/Kconfig"
775
776source "arch/arm/mach-lh7a40x/Kconfig"
777
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200778source "arch/arm/mach-loki/Kconfig"
779
Russell King95b8f202010-01-14 11:43:54 +0000780source "arch/arm/mach-msm/Kconfig"
781
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200782source "arch/arm/mach-mv78xx0/Kconfig"
783
Russell King95b8f202010-01-14 11:43:54 +0000784source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785
Russell King95b8f202010-01-14 11:43:54 +0000786source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800787
Russell King95b8f202010-01-14 11:43:54 +0000788source "arch/arm/mach-nomadik/Kconfig"
789source "arch/arm/plat-nomadik/Kconfig"
790
791source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Tony Lindgrend48af152005-07-10 19:58:17 +0100793source "arch/arm/plat-omap/Kconfig"
794
795source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796
Tony Lindgren1dbae812005-11-10 14:26:51 +0000797source "arch/arm/mach-omap2/Kconfig"
798
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400799source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400800
Russell King95b8f202010-01-14 11:43:54 +0000801source "arch/arm/mach-pxa/Kconfig"
802source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803
Russell King95b8f202010-01-14 11:43:54 +0000804source "arch/arm/mach-mmp/Kconfig"
805
806source "arch/arm/mach-realview/Kconfig"
807
808source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300809
Ben Dookscf383672009-11-10 00:14:58 +0000810source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100811source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100812source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100813source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900814source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100815
816if ARCH_S3C2410
817source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100819source "arch/arm/mach-s3c2412/Kconfig"
820source "arch/arm/mach-s3c2440/Kconfig"
821source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100822source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100823endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824
Ben Dooksa08ab632008-10-21 14:06:39 +0100825if ARCH_S3C64XX
826source "arch/arm/mach-s3c6400/Kconfig"
827source "arch/arm/mach-s3c6410/Kconfig"
828endif
829
Magnus Dammc793c1b2010-02-05 11:14:49 +0000830source "arch/arm/mach-shmobile/Kconfig"
831
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100832source "arch/arm/plat-stmp3xxx/Kconfig"
833
Byungho Min5a7652f2009-06-23 21:39:42 +0900834if ARCH_S5PC1XX
835source "arch/arm/mach-s5pc100/Kconfig"
836endif
837
Russell King95b8f202010-01-14 11:43:54 +0000838source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839
Russell King95b8f202010-01-14 11:43:54 +0000840source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
842source "arch/arm/mach-versatile/Kconfig"
843
wanzongshun7ec80dd2008-12-03 03:55:38 +0100844source "arch/arm/mach-w90x900/Kconfig"
845
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846# Definitions to make life easier
847config ARCH_ACORN
848 bool
849
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100850config PLAT_IOP
851 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700852 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700853 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100854
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400855config PLAT_ORION
856 bool
857
Eric Miaobd5ce432009-01-20 12:06:01 +0800858config PLAT_PXA
859 bool
860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861source arch/arm/mm/Kconfig
862
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100863config IWMMXT
864 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800865 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
866 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100867 help
868 Enable support for iWMMXt context switching at run time if
869 running on a CPU that supports it.
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
872config XSCALE_PMU
873 bool
874 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
875 default y
876
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100877if !MMU
878source "arch/arm/Kconfig-nommu"
879endif
880
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100881config ARM_ERRATA_411920
882 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
883 depends on CPU_V6 && !SMP
884 help
885 Invalidation of the Instruction Cache operation can
886 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
887 It does not affect the MPCore. This option enables the ARM Ltd.
888 recommended workaround.
889
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100890config ARM_ERRATA_430973
891 bool "ARM errata: Stale prediction on replaced interworking branch"
892 depends on CPU_V7
893 help
894 This option enables the workaround for the 430973 Cortex-A8
895 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
896 interworking branch is replaced with another code sequence at the
897 same virtual address, whether due to self-modifying code or virtual
898 to physical address re-mapping, Cortex-A8 does not recover from the
899 stale interworking branch prediction. This results in Cortex-A8
900 executing the new code sequence in the incorrect ARM or Thumb state.
901 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
902 and also flushes the branch target cache at every context switch.
903 Note that setting specific bits in the ACTLR register may not be
904 available in non-secure mode.
905
Catalin Marinas855c5512009-04-30 17:06:15 +0100906config ARM_ERRATA_458693
907 bool "ARM errata: Processor deadlock when a false hazard is created"
908 depends on CPU_V7
909 help
910 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
911 erratum. For very specific sequences of memory operations, it is
912 possible for a hazard condition intended for a cache line to instead
913 be incorrectly associated with a different cache line. This false
914 hazard might then cause a processor deadlock. The workaround enables
915 the L1 caching of the NEON accesses and disables the PLD instruction
916 in the ACTLR register. Note that setting specific bits in the ACTLR
917 register may not be available in non-secure mode.
918
Catalin Marinas0516e462009-04-30 17:06:20 +0100919config ARM_ERRATA_460075
920 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
921 depends on CPU_V7
922 help
923 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
924 erratum. Any asynchronous access to the L2 cache may encounter a
925 situation in which recent store transactions to the L2 cache are lost
926 and overwritten with stale memory contents from external memory. The
927 workaround disables the write-allocate mode for the L2 cache via the
928 ACTLR register. Note that setting specific bits in the ACTLR register
929 may not be available in non-secure mode.
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931endmenu
932
933source "arch/arm/common/Kconfig"
934
935config FORCE_MAX_ZONEORDER
936 int
937 depends on SA1111
938 default "9"
939
940menu "Bus support"
941
942config ARM_AMBA
943 bool
944
945config ISA
946 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947 help
948 Find out whether you have ISA slots on your motherboard. ISA is the
949 name of a bus system, i.e. the way the CPU talks to the other stuff
950 inside your box. Other bus systems are PCI, EISA, MicroChannel
951 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
952 newer boards don't support it. If you have ISA, say Y, otherwise N.
953
Russell King065909b2006-01-04 15:44:16 +0000954# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955config ISA_DMA
956 bool
Russell King065909b2006-01-04 15:44:16 +0000957 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Russell King065909b2006-01-04 15:44:16 +0000959# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100960config ISA_DMA_API
961 bool
Al Viro5cae8412005-05-04 05:39:22 +0100962
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100964 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965 help
966 Find out whether you have a PCI motherboard. PCI is the name of a
967 bus system, i.e. the way the CPU talks to the other stuff inside
968 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
969 VESA. If you have PCI, say Y, otherwise N.
970
Matthew Wilcox36e23592007-07-10 10:54:40 -0600971config PCI_SYSCALL
972 def_bool PCI
973
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974# Select the host bridge type
975config PCI_HOST_VIA82C505
976 bool
977 depends on PCI && ARCH_SHARK
978 default y
979
Mike Rapoporta0113a92007-11-25 08:55:34 +0100980config PCI_HOST_ITE8152
981 bool
982 depends on PCI && MACH_ARMCORE
983 default y
984 select DMABOUNCE
985
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986source "drivers/pci/Kconfig"
987
988source "drivers/pcmcia/Kconfig"
989
990endmenu
991
992menu "Kernel Features"
993
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100994source "kernel/time/Kconfig"
995
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996config SMP
997 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100998 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100999 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001000 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001001 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001002 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003 help
1004 This enables support for systems with more than one CPU. If you have
1005 a system with only one CPU, like most personal computers, say N. If
1006 you have a system with more than one CPU, say Y.
1007
1008 If you say N here, the kernel will run on single and multiprocessor
1009 machines, but will use only one CPU of a multiprocessor machine. If
1010 you say Y here, the kernel will run on many, but not all, single
1011 processor machines. On a single processor machine, the kernel will
1012 run faster if you say N here.
1013
Adrian Bunk03502fa2008-02-03 15:50:21 +02001014 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1016 <http://www.linuxdoc.org/docs.html#howto>.
1017
1018 If you don't know what to do here, say N.
1019
Russell Kinga8cbcd92009-05-16 11:51:14 +01001020config HAVE_ARM_SCU
1021 bool
1022 depends on SMP
1023 help
1024 This option enables support for the ARM system coherency unit
1025
Russell Kingf32f4ce2009-05-16 12:14:21 +01001026config HAVE_ARM_TWD
1027 bool
1028 depends on SMP
1029 help
1030 This options enables support for the ARM timer and watchdog unit
1031
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001032choice
1033 prompt "Memory split"
1034 default VMSPLIT_3G
1035 help
1036 Select the desired split between kernel and user memory.
1037
1038 If you are not absolutely sure what you are doing, leave this
1039 option alone!
1040
1041 config VMSPLIT_3G
1042 bool "3G/1G user/kernel split"
1043 config VMSPLIT_2G
1044 bool "2G/2G user/kernel split"
1045 config VMSPLIT_1G
1046 bool "1G/3G user/kernel split"
1047endchoice
1048
1049config PAGE_OFFSET
1050 hex
1051 default 0x40000000 if VMSPLIT_1G
1052 default 0x80000000 if VMSPLIT_2G
1053 default 0xC0000000
1054
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055config NR_CPUS
1056 int "Maximum number of CPUs (2-32)"
1057 range 2 32
1058 depends on SMP
1059 default "4"
1060
Russell Kinga054a812005-11-02 22:24:33 +00001061config HOTPLUG_CPU
1062 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1063 depends on SMP && HOTPLUG && EXPERIMENTAL
1064 help
1065 Say Y here to experiment with turning CPUs off and on. CPUs
1066 can be controlled through /sys/devices/system/cpu.
1067
Russell King37ee16a2005-11-08 19:08:05 +00001068config LOCAL_TIMERS
1069 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001070 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001071 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001072 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001073 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001074 help
1075 Enable support for local timers on SMP platforms, rather then the
1076 legacy IPI broadcast method. Local timers allows the system
1077 accounting to be spread across the timer interval, preventing a
1078 "thundering herd" at every timer tick.
1079
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001080source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
Russell Kingf8065812006-03-02 22:41:59 +00001082config HZ
1083 int
1084 default 128 if ARCH_L7200
1085 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001086 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001087 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001088 default 100
1089
Catalin Marinas16c79652009-07-24 12:33:02 +01001090config THUMB2_KERNEL
1091 bool "Compile the kernel in Thumb-2 mode"
1092 depends on CPU_V7 && EXPERIMENTAL
1093 select AEABI
1094 select ARM_ASM_UNIFIED
1095 help
1096 By enabling this option, the kernel will be compiled in
1097 Thumb-2 mode. A compiler/assembler that understand the unified
1098 ARM-Thumb syntax is needed.
1099
1100 If unsure, say N.
1101
Catalin Marinas0becb082009-07-24 12:32:53 +01001102config ARM_ASM_UNIFIED
1103 bool
1104
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001105config AEABI
1106 bool "Use the ARM EABI to compile the kernel"
1107 help
1108 This option allows for the kernel to be compiled using the latest
1109 ARM ABI (aka EABI). This is only useful if you are using a user
1110 space environment that is also compiled with EABI.
1111
1112 Since there are major incompatibilities between the legacy ABI and
1113 EABI, especially with regard to structure member alignment, this
1114 option also changes the kernel syscall calling convention to
1115 disambiguate both ABIs and allow for backward compatibility support
1116 (selected with CONFIG_OABI_COMPAT).
1117
1118 To use this you need GCC version 4.0.0 or later.
1119
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001120config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001121 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001122 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001123 default y
1124 help
1125 This option preserves the old syscall interface along with the
1126 new (ARM EABI) one. It also provides a compatibility layer to
1127 intercept syscalls that have structure arguments which layout
1128 in memory differs between the legacy ABI and the new ARM EABI
1129 (only for non "thumb" binaries). This option adds a tiny
1130 overhead to all syscalls and produces a slightly larger kernel.
1131 If you know you'll be using only pure EABI user space then you
1132 can say N here. If this option is not selected and you attempt
1133 to execute a legacy ABI binary then the result will be
1134 UNPREDICTABLE (in fact it can be predicted that it won't work
1135 at all). If in doubt say Y.
1136
Mel Gormaneb335752009-05-13 17:34:48 +01001137config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001138 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001139
Russell King07a2f732008-10-01 21:39:58 +01001140# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001141config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001143
Russell King05944d72006-11-30 20:43:51 +00001144config ARCH_SPARSEMEM_ENABLE
1145 bool
1146
Russell King07a2f732008-10-01 21:39:58 +01001147config ARCH_SPARSEMEM_DEFAULT
1148 def_bool ARCH_SPARSEMEM_ENABLE
1149
Russell King05944d72006-11-30 20:43:51 +00001150config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001151 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001152
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001153config NODES_SHIFT
1154 int
1155 default "4" if ARCH_LH7A40X
1156 default "2"
1157 depends on NEED_MULTIPLE_NODES
1158
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001159config HIGHMEM
1160 bool "High Memory Support (EXPERIMENTAL)"
1161 depends on MMU && EXPERIMENTAL
1162 help
1163 The address space of ARM processors is only 4 Gigabytes large
1164 and it has to accommodate user address space, kernel address
1165 space as well as some memory mapped IO. That means that, if you
1166 have a large amount of physical memory and/or IO, not all of the
1167 memory can be "permanently mapped" by the kernel. The physical
1168 memory that is not permanently mapped is called "high memory".
1169
1170 Depending on the selected kernel/user memory split, minimum
1171 vmalloc space and actual amount of RAM, you may not need this
1172 option which should result in a slightly faster kernel.
1173
1174 If unsure, say n.
1175
Russell King65cec8e2009-08-17 20:02:06 +01001176config HIGHPTE
1177 bool "Allocate 2nd-level pagetables from highmem"
1178 depends on HIGHMEM
1179 depends on !OUTER_CACHE
1180
Dave Hansen3f22ab22005-06-23 00:07:43 -07001181source "mm/Kconfig"
1182
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183config LEDS
1184 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001185 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001186 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1188 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001189 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001190 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001191 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 help
1193 If you say Y here, the LEDs on your machine will be used
1194 to provide useful information about your current system status.
1195
1196 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1197 be able to select which LEDs are active using the options below. If
1198 you are compiling a kernel for the EBSA-110 or the LART however, the
1199 red LED will simply flash regularly to indicate that the system is
1200 still functional. It is safe to say Y here if you have a CATS
1201 system, but the driver will do nothing.
1202
1203config LEDS_TIMER
1204 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001205 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1206 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001208 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 default y if ARCH_EBSA110
1210 help
1211 If you say Y here, one of the system LEDs (the green one on the
1212 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1213 will flash regularly to indicate that the system is still
1214 operational. This is mainly useful to kernel hackers who are
1215 debugging unstable kernels.
1216
1217 The LART uses the same LED for both Timer LED and CPU usage LED
1218 functions. You may choose to use both, but the Timer LED function
1219 will overrule the CPU usage LED.
1220
1221config LEDS_CPU
1222 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001223 !ARCH_OMAP) \
1224 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1225 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 depends on LEDS
1227 help
1228 If you say Y here, the red LED will be used to give a good real
1229 time indication of CPU usage, by lighting whenever the idle task
1230 is not currently executing.
1231
1232 The LART uses the same LED for both Timer LED and CPU usage LED
1233 functions. You may choose to use both, but the Timer LED function
1234 will overrule the CPU usage LED.
1235
1236config ALIGNMENT_TRAP
1237 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001238 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 default y if !ARCH_EBSA110
1240 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001241 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1243 address divisible by 4. On 32-bit ARM processors, these non-aligned
1244 fetch/store instructions will be emulated in software if you say
1245 here, which has a severe performance impact. This is necessary for
1246 correct operation of some network protocols. With an IP-only
1247 configuration it is safe to say N, otherwise say Y.
1248
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001249config UACCESS_WITH_MEMCPY
1250 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1251 depends on MMU && EXPERIMENTAL
1252 default y if CPU_FEROCEON
1253 help
1254 Implement faster copy_to_user and clear_user methods for CPU
1255 cores where a 8-word STM instruction give significantly higher
1256 memory write throughput than a sequence of individual 32bit stores.
1257
1258 A possible side effect is a slight increase in scheduling latency
1259 between threads sharing the same address space if they invoke
1260 such copy operations with large buffers.
1261
1262 However, if the CPU data cache is using a write-allocate mode,
1263 this option is unlikely to provide any performance gain.
1264
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265endmenu
1266
1267menu "Boot options"
1268
1269# Compressed boot loader in ROM. Yes, we really want to ask about
1270# TEXT and BSS so we preserve their values in the config files.
1271config ZBOOT_ROM_TEXT
1272 hex "Compressed ROM boot loader base address"
1273 default "0"
1274 help
1275 The physical address at which the ROM-able zImage is to be
1276 placed in the target. Platforms which normally make use of
1277 ROM-able zImage formats normally set this to a suitable
1278 value in their defconfig file.
1279
1280 If ZBOOT_ROM is not enabled, this has no effect.
1281
1282config ZBOOT_ROM_BSS
1283 hex "Compressed ROM boot loader BSS address"
1284 default "0"
1285 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001286 The base address of an area of read/write memory in the target
1287 for the ROM-able zImage which must be available while the
1288 decompressor is running. It must be large enough to hold the
1289 entire decompressed kernel plus an additional 128 KiB.
1290 Platforms which normally make use of ROM-able zImage formats
1291 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292
1293 If ZBOOT_ROM is not enabled, this has no effect.
1294
1295config ZBOOT_ROM
1296 bool "Compressed boot loader in ROM/flash"
1297 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1298 help
1299 Say Y here if you intend to execute your compressed kernel image
1300 (zImage) directly from ROM or flash. If unsure, say N.
1301
1302config CMDLINE
1303 string "Default kernel command string"
1304 default ""
1305 help
1306 On some architectures (EBSA110 and CATS), there is currently no way
1307 for the boot loader to pass arguments to the kernel. For these
1308 architectures, you should supply some command-line options at build
1309 time by entering them here. As a minimum, you should specify the
1310 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1311
1312config XIP_KERNEL
1313 bool "Kernel Execute-In-Place from ROM"
1314 depends on !ZBOOT_ROM
1315 help
1316 Execute-In-Place allows the kernel to run from non-volatile storage
1317 directly addressable by the CPU, such as NOR flash. This saves RAM
1318 space since the text section of the kernel is not loaded from flash
1319 to RAM. Read-write sections, such as the data section and stack,
1320 are still copied to RAM. The XIP kernel is not compressed since
1321 it has to run directly from flash, so it will take more space to
1322 store it. The flash address used to link the kernel object files,
1323 and for storing it, is configuration dependent. Therefore, if you
1324 say Y here, you must know the proper physical address where to
1325 store the kernel image depending on your own flash memory usage.
1326
1327 Also note that the make target becomes "make xipImage" rather than
1328 "make zImage" or "make Image". The final kernel binary to put in
1329 ROM memory will be arch/arm/boot/xipImage.
1330
1331 If unsure, say N.
1332
1333config XIP_PHYS_ADDR
1334 hex "XIP Kernel Physical Location"
1335 depends on XIP_KERNEL
1336 default "0x00080000"
1337 help
1338 This is the physical address in your flash memory the kernel will
1339 be linked for and stored to. This address is dependent on your
1340 own flash usage.
1341
Richard Purdiec587e4a2007-02-06 21:29:00 +01001342config KEXEC
1343 bool "Kexec system call (EXPERIMENTAL)"
1344 depends on EXPERIMENTAL
1345 help
1346 kexec is a system call that implements the ability to shutdown your
1347 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001348 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001349 you can start any kernel with it, not just Linux.
1350
1351 It is an ongoing process to be certain the hardware in a machine
1352 is properly shutdown, so do not be surprised if this code does not
1353 initially work for you. It may help to enable device hotplugging
1354 support.
1355
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001356config ATAGS_PROC
1357 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001358 depends on KEXEC
1359 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001360 help
1361 Should the atags used to boot the kernel be exported in an "atags"
1362 file in procfs. Useful with kexec.
1363
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364endmenu
1365
Russell Kingac9d7ef2008-08-18 17:26:00 +01001366menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367
Ben Dooks89c52ed2009-07-30 23:23:24 +01001368if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369
1370source "drivers/cpufreq/Kconfig"
1371
1372config CPU_FREQ_SA1100
1373 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374
1375config CPU_FREQ_SA1110
1376 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377
1378config CPU_FREQ_INTEGRATOR
1379 tristate "CPUfreq driver for ARM Integrator CPUs"
1380 depends on ARCH_INTEGRATOR && CPU_FREQ
1381 default y
1382 help
1383 This enables the CPUfreq driver for ARM Integrator CPUs.
1384
1385 For details, take a look at <file:Documentation/cpu-freq>.
1386
1387 If in doubt, say Y.
1388
Russell King9e2697f2007-12-14 13:30:14 +00001389config CPU_FREQ_PXA
1390 bool
1391 depends on CPU_FREQ && ARCH_PXA && PXA25x
1392 default y
1393 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1394
Mark Brownb3748dd2009-06-15 11:23:20 +01001395config CPU_FREQ_S3C64XX
1396 bool "CPUfreq support for Samsung S3C64XX CPUs"
1397 depends on CPU_FREQ && CPU_S3C6410
1398
Ben Dooks9d56c022009-07-30 23:23:25 +01001399config CPU_FREQ_S3C
1400 bool
1401 help
1402 Internal configuration node for common cpufreq on Samsung SoC
1403
1404config CPU_FREQ_S3C24XX
1405 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1406 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1407 select CPU_FREQ_S3C
1408 help
1409 This enables the CPUfreq driver for the Samsung S3C24XX family
1410 of CPUs.
1411
1412 For details, take a look at <file:Documentation/cpu-freq>.
1413
1414 If in doubt, say N.
1415
1416config CPU_FREQ_S3C24XX_PLL
1417 bool "Support CPUfreq changing of PLL frequency"
1418 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1419 help
1420 Compile in support for changing the PLL frequency from the
1421 S3C24XX series CPUfreq driver. The PLL takes time to settle
1422 after a frequency change, so by default it is not enabled.
1423
1424 This also means that the PLL tables for the selected CPU(s) will
1425 be built which may increase the size of the kernel image.
1426
1427config CPU_FREQ_S3C24XX_DEBUG
1428 bool "Debug CPUfreq Samsung driver core"
1429 depends on CPU_FREQ_S3C24XX
1430 help
1431 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1432
1433config CPU_FREQ_S3C24XX_IODEBUG
1434 bool "Debug CPUfreq Samsung driver IO timing"
1435 depends on CPU_FREQ_S3C24XX
1436 help
1437 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1438
Ben Dookse6d197a2009-07-30 23:23:42 +01001439config CPU_FREQ_S3C24XX_DEBUGFS
1440 bool "Export debugfs for CPUFreq"
1441 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1442 help
1443 Export status information via debugfs.
1444
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445endif
1446
Russell Kingac9d7ef2008-08-18 17:26:00 +01001447source "drivers/cpuidle/Kconfig"
1448
1449endmenu
1450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451menu "Floating point emulation"
1452
1453comment "At least one emulation must be selected"
1454
1455config FPE_NWFPE
1456 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001457 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 ---help---
1459 Say Y to include the NWFPE floating point emulator in the kernel.
1460 This is necessary to run most binaries. Linux does not currently
1461 support floating point hardware so you need to say Y here even if
1462 your machine has an FPA or floating point co-processor podule.
1463
1464 You may say N here if you are going to load the Acorn FPEmulator
1465 early in the bootup.
1466
1467config FPE_NWFPE_XP
1468 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001469 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 help
1471 Say Y to include 80-bit support in the kernel floating-point
1472 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1473 Note that gcc does not generate 80-bit operations by default,
1474 so in most cases this option only enlarges the size of the
1475 floating point emulator without any good reason.
1476
1477 You almost surely want to say N here.
1478
1479config FPE_FASTFPE
1480 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001481 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482 ---help---
1483 Say Y here to include the FAST floating point emulator in the kernel.
1484 This is an experimental much faster emulator which now also has full
1485 precision for the mantissa. It does not support any exceptions.
1486 It is very simple, and approximately 3-6 times faster than NWFPE.
1487
1488 It should be sufficient for most programs. It may be not suitable
1489 for scientific calculations, but you have to check this for yourself.
1490 If you do not feel you need a faster FP emulation you should better
1491 choose NWFPE.
1492
1493config VFP
1494 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001495 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496 help
1497 Say Y to include VFP support code in the kernel. This is needed
1498 if your hardware includes a VFP unit.
1499
1500 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1501 release notes and additional status information.
1502
1503 Say N if your target does not have VFP hardware.
1504
Catalin Marinas25ebee02007-09-25 15:22:24 +01001505config VFPv3
1506 bool
1507 depends on VFP
1508 default y if CPU_V7
1509
Catalin Marinasb5872db2008-01-10 19:16:17 +01001510config NEON
1511 bool "Advanced SIMD (NEON) Extension support"
1512 depends on VFPv3 && CPU_V7
1513 help
1514 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1515 Extension.
1516
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517endmenu
1518
1519menu "Userspace binary formats"
1520
1521source "fs/Kconfig.binfmt"
1522
1523config ARTHUR
1524 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001525 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526 help
1527 Say Y here to include the kernel code necessary if you want to run
1528 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1529 experimental; if this sounds frightening, say N and sleep in peace.
1530 You can also say M here to compile this support as a module (which
1531 will be called arthur).
1532
1533endmenu
1534
1535menu "Power management options"
1536
Russell Kingeceab4a2005-11-15 11:31:41 +00001537source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538
Johannes Bergf4cb5702007-12-08 02:14:00 +01001539config ARCH_SUSPEND_POSSIBLE
1540 def_bool y
1541
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542endmenu
1543
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001544source "net/Kconfig"
1545
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001546source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547
1548source "fs/Kconfig"
1549
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550source "arch/arm/Kconfig.debug"
1551
1552source "security/Kconfig"
1553
1554source "crypto/Kconfig"
1555
1556source "lib/Kconfig"