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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
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
Sekhar Noriae88e052009-11-19 15:34:01 +0530693 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100694 help
695 Support for TI's DaVinci platform.
696
Russell King3b938be2007-05-12 11:25:44 +0100697config ARCH_OMAP
698 bool "TI OMAP"
699 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700700 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700701 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100702 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100703 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700704 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800705 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100706 help
707 Support for TI's OMAP platform (OMAP1 and OMAP2).
708
Leo Chen6288e282009-08-07 19:46:15 +0100709config ARCH_BCMRING
710 bool "Broadcom BCMRING"
711 depends on MMU
712 select CPU_V6
713 select ARM_AMBA
714 select COMMON_CLKDEV
715 select GENERIC_TIME
716 select GENERIC_CLOCKEVENTS
717 select ARCH_WANT_OPTIONAL_GPIOLIB
718 help
719 Support for Broadcom's BCMRing platform.
720
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100721config ARCH_U8500
722 bool "ST-Ericsson U8500 Series"
723 select CPU_V7
724 select ARM_AMBA
725 select GENERIC_TIME
726 select GENERIC_CLOCKEVENTS
727 select COMMON_CLKDEV
728 help
729 Support for ST-Ericsson's Ux500 architecture
730
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731endchoice
732
Russell King95b8f202010-01-14 11:43:54 +0000733source "arch/arm/mach-aaec2000/Kconfig"
734
735source "arch/arm/mach-at91/Kconfig"
736
737source "arch/arm/mach-bcmring/Kconfig"
738
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739source "arch/arm/mach-clps711x/Kconfig"
740
Russell King95b8f202010-01-14 11:43:54 +0000741source "arch/arm/mach-davinci/Kconfig"
742
743source "arch/arm/mach-dove/Kconfig"
744
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000745source "arch/arm/mach-ep93xx/Kconfig"
746
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747source "arch/arm/mach-footbridge/Kconfig"
748
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200749source "arch/arm/mach-gemini/Kconfig"
750
Russell King95b8f202010-01-14 11:43:54 +0000751source "arch/arm/mach-h720x/Kconfig"
752
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753source "arch/arm/mach-integrator/Kconfig"
754
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100755source "arch/arm/mach-iop32x/Kconfig"
756
757source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758
Dan Williams285f5fa2006-12-07 02:59:39 +0100759source "arch/arm/mach-iop13xx/Kconfig"
760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761source "arch/arm/mach-ixp4xx/Kconfig"
762
763source "arch/arm/mach-ixp2000/Kconfig"
764
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100765source "arch/arm/mach-ixp23xx/Kconfig"
766
Russell King95b8f202010-01-14 11:43:54 +0000767source "arch/arm/mach-kirkwood/Kconfig"
768
769source "arch/arm/mach-ks8695/Kconfig"
770
771source "arch/arm/mach-lh7a40x/Kconfig"
772
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200773source "arch/arm/mach-loki/Kconfig"
774
Russell King95b8f202010-01-14 11:43:54 +0000775source "arch/arm/mach-msm/Kconfig"
776
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200777source "arch/arm/mach-mv78xx0/Kconfig"
778
Russell King95b8f202010-01-14 11:43:54 +0000779source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
Russell King95b8f202010-01-14 11:43:54 +0000781source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800782
Russell King95b8f202010-01-14 11:43:54 +0000783source "arch/arm/mach-nomadik/Kconfig"
784source "arch/arm/plat-nomadik/Kconfig"
785
786source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787
Tony Lindgrend48af152005-07-10 19:58:17 +0100788source "arch/arm/plat-omap/Kconfig"
789
790source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791
Tony Lindgren1dbae812005-11-10 14:26:51 +0000792source "arch/arm/mach-omap2/Kconfig"
793
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400794source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400795
Russell King95b8f202010-01-14 11:43:54 +0000796source "arch/arm/mach-pxa/Kconfig"
797source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798
Russell King95b8f202010-01-14 11:43:54 +0000799source "arch/arm/mach-mmp/Kconfig"
800
801source "arch/arm/mach-realview/Kconfig"
802
803source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300804
Ben Dookscf383672009-11-10 00:14:58 +0000805source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100806source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100807source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100808source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900809source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100810
811if ARCH_S3C2410
812source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100814source "arch/arm/mach-s3c2412/Kconfig"
815source "arch/arm/mach-s3c2440/Kconfig"
816source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100817source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100818endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819
Ben Dooksa08ab632008-10-21 14:06:39 +0100820if ARCH_S3C64XX
821source "arch/arm/mach-s3c6400/Kconfig"
822source "arch/arm/mach-s3c6410/Kconfig"
823endif
824
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100825source "arch/arm/plat-stmp3xxx/Kconfig"
826
Byungho Min5a7652f2009-06-23 21:39:42 +0900827if ARCH_S5PC1XX
828source "arch/arm/mach-s5pc100/Kconfig"
829endif
830
Russell King95b8f202010-01-14 11:43:54 +0000831source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832
Russell King95b8f202010-01-14 11:43:54 +0000833source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834
835source "arch/arm/mach-versatile/Kconfig"
836
wanzongshun7ec80dd2008-12-03 03:55:38 +0100837source "arch/arm/mach-w90x900/Kconfig"
838
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839# Definitions to make life easier
840config ARCH_ACORN
841 bool
842
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100843config PLAT_IOP
844 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700845 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700846 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100847
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400848config PLAT_ORION
849 bool
850
Eric Miaobd5ce432009-01-20 12:06:01 +0800851config PLAT_PXA
852 bool
853
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854source arch/arm/mm/Kconfig
855
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100856config IWMMXT
857 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800858 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
859 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100860 help
861 Enable support for iWMMXt context switching at run time if
862 running on a CPU that supports it.
863
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
865config XSCALE_PMU
866 bool
867 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
868 default y
869
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100870if !MMU
871source "arch/arm/Kconfig-nommu"
872endif
873
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100874config ARM_ERRATA_411920
875 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
876 depends on CPU_V6 && !SMP
877 help
878 Invalidation of the Instruction Cache operation can
879 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
880 It does not affect the MPCore. This option enables the ARM Ltd.
881 recommended workaround.
882
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100883config ARM_ERRATA_430973
884 bool "ARM errata: Stale prediction on replaced interworking branch"
885 depends on CPU_V7
886 help
887 This option enables the workaround for the 430973 Cortex-A8
888 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
889 interworking branch is replaced with another code sequence at the
890 same virtual address, whether due to self-modifying code or virtual
891 to physical address re-mapping, Cortex-A8 does not recover from the
892 stale interworking branch prediction. This results in Cortex-A8
893 executing the new code sequence in the incorrect ARM or Thumb state.
894 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
895 and also flushes the branch target cache at every context switch.
896 Note that setting specific bits in the ACTLR register may not be
897 available in non-secure mode.
898
Catalin Marinas855c5512009-04-30 17:06:15 +0100899config ARM_ERRATA_458693
900 bool "ARM errata: Processor deadlock when a false hazard is created"
901 depends on CPU_V7
902 help
903 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
904 erratum. For very specific sequences of memory operations, it is
905 possible for a hazard condition intended for a cache line to instead
906 be incorrectly associated with a different cache line. This false
907 hazard might then cause a processor deadlock. The workaround enables
908 the L1 caching of the NEON accesses and disables the PLD instruction
909 in the ACTLR register. Note that setting specific bits in the ACTLR
910 register may not be available in non-secure mode.
911
Catalin Marinas0516e462009-04-30 17:06:20 +0100912config ARM_ERRATA_460075
913 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
914 depends on CPU_V7
915 help
916 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
917 erratum. Any asynchronous access to the L2 cache may encounter a
918 situation in which recent store transactions to the L2 cache are lost
919 and overwritten with stale memory contents from external memory. The
920 workaround disables the write-allocate mode for the L2 cache via the
921 ACTLR register. Note that setting specific bits in the ACTLR register
922 may not be available in non-secure mode.
923
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924endmenu
925
926source "arch/arm/common/Kconfig"
927
928config FORCE_MAX_ZONEORDER
929 int
930 depends on SA1111
931 default "9"
932
933menu "Bus support"
934
935config ARM_AMBA
936 bool
937
938config ISA
939 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940 help
941 Find out whether you have ISA slots on your motherboard. ISA is the
942 name of a bus system, i.e. the way the CPU talks to the other stuff
943 inside your box. Other bus systems are PCI, EISA, MicroChannel
944 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
945 newer boards don't support it. If you have ISA, say Y, otherwise N.
946
Russell King065909b2006-01-04 15:44:16 +0000947# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948config ISA_DMA
949 bool
Russell King065909b2006-01-04 15:44:16 +0000950 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
Russell King065909b2006-01-04 15:44:16 +0000952# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100953config ISA_DMA_API
954 bool
Al Viro5cae8412005-05-04 05:39:22 +0100955
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100957 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 help
959 Find out whether you have a PCI motherboard. PCI is the name of a
960 bus system, i.e. the way the CPU talks to the other stuff inside
961 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
962 VESA. If you have PCI, say Y, otherwise N.
963
Matthew Wilcox36e23592007-07-10 10:54:40 -0600964config PCI_SYSCALL
965 def_bool PCI
966
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967# Select the host bridge type
968config PCI_HOST_VIA82C505
969 bool
970 depends on PCI && ARCH_SHARK
971 default y
972
Mike Rapoporta0113a92007-11-25 08:55:34 +0100973config PCI_HOST_ITE8152
974 bool
975 depends on PCI && MACH_ARMCORE
976 default y
977 select DMABOUNCE
978
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979source "drivers/pci/Kconfig"
980
981source "drivers/pcmcia/Kconfig"
982
983endmenu
984
985menu "Kernel Features"
986
Kevin Hilman0567a0c2007-03-13 20:29:24 +0100987source "kernel/time/Kconfig"
988
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989config SMP
990 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +0100991 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100992 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +0100993 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +0200994 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100995 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 help
997 This enables support for systems with more than one CPU. If you have
998 a system with only one CPU, like most personal computers, say N. If
999 you have a system with more than one CPU, say Y.
1000
1001 If you say N here, the kernel will run on single and multiprocessor
1002 machines, but will use only one CPU of a multiprocessor machine. If
1003 you say Y here, the kernel will run on many, but not all, single
1004 processor machines. On a single processor machine, the kernel will
1005 run faster if you say N here.
1006
Adrian Bunk03502fa2008-02-03 15:50:21 +02001007 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1009 <http://www.linuxdoc.org/docs.html#howto>.
1010
1011 If you don't know what to do here, say N.
1012
Russell Kinga8cbcd92009-05-16 11:51:14 +01001013config HAVE_ARM_SCU
1014 bool
1015 depends on SMP
1016 help
1017 This option enables support for the ARM system coherency unit
1018
Russell Kingf32f4ce2009-05-16 12:14:21 +01001019config HAVE_ARM_TWD
1020 bool
1021 depends on SMP
1022 help
1023 This options enables support for the ARM timer and watchdog unit
1024
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001025choice
1026 prompt "Memory split"
1027 default VMSPLIT_3G
1028 help
1029 Select the desired split between kernel and user memory.
1030
1031 If you are not absolutely sure what you are doing, leave this
1032 option alone!
1033
1034 config VMSPLIT_3G
1035 bool "3G/1G user/kernel split"
1036 config VMSPLIT_2G
1037 bool "2G/2G user/kernel split"
1038 config VMSPLIT_1G
1039 bool "1G/3G user/kernel split"
1040endchoice
1041
1042config PAGE_OFFSET
1043 hex
1044 default 0x40000000 if VMSPLIT_1G
1045 default 0x80000000 if VMSPLIT_2G
1046 default 0xC0000000
1047
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048config NR_CPUS
1049 int "Maximum number of CPUs (2-32)"
1050 range 2 32
1051 depends on SMP
1052 default "4"
1053
Russell Kinga054a812005-11-02 22:24:33 +00001054config HOTPLUG_CPU
1055 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1056 depends on SMP && HOTPLUG && EXPERIMENTAL
1057 help
1058 Say Y here to experiment with turning CPUs off and on. CPUs
1059 can be controlled through /sys/devices/system/cpu.
1060
Russell King37ee16a2005-11-08 19:08:05 +00001061config LOCAL_TIMERS
1062 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001063 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001064 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001065 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001066 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001067 help
1068 Enable support for local timers on SMP platforms, rather then the
1069 legacy IPI broadcast method. Local timers allows the system
1070 accounting to be spread across the timer interval, preventing a
1071 "thundering herd" at every timer tick.
1072
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001073source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074
Russell Kingf8065812006-03-02 22:41:59 +00001075config HZ
1076 int
1077 default 128 if ARCH_L7200
1078 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001079 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001080 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001081 default 100
1082
Catalin Marinas16c79652009-07-24 12:33:02 +01001083config THUMB2_KERNEL
1084 bool "Compile the kernel in Thumb-2 mode"
1085 depends on CPU_V7 && EXPERIMENTAL
1086 select AEABI
1087 select ARM_ASM_UNIFIED
1088 help
1089 By enabling this option, the kernel will be compiled in
1090 Thumb-2 mode. A compiler/assembler that understand the unified
1091 ARM-Thumb syntax is needed.
1092
1093 If unsure, say N.
1094
Catalin Marinas0becb082009-07-24 12:32:53 +01001095config ARM_ASM_UNIFIED
1096 bool
1097
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001098config AEABI
1099 bool "Use the ARM EABI to compile the kernel"
1100 help
1101 This option allows for the kernel to be compiled using the latest
1102 ARM ABI (aka EABI). This is only useful if you are using a user
1103 space environment that is also compiled with EABI.
1104
1105 Since there are major incompatibilities between the legacy ABI and
1106 EABI, especially with regard to structure member alignment, this
1107 option also changes the kernel syscall calling convention to
1108 disambiguate both ABIs and allow for backward compatibility support
1109 (selected with CONFIG_OABI_COMPAT).
1110
1111 To use this you need GCC version 4.0.0 or later.
1112
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001113config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001114 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001115 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001116 default y
1117 help
1118 This option preserves the old syscall interface along with the
1119 new (ARM EABI) one. It also provides a compatibility layer to
1120 intercept syscalls that have structure arguments which layout
1121 in memory differs between the legacy ABI and the new ARM EABI
1122 (only for non "thumb" binaries). This option adds a tiny
1123 overhead to all syscalls and produces a slightly larger kernel.
1124 If you know you'll be using only pure EABI user space then you
1125 can say N here. If this option is not selected and you attempt
1126 to execute a legacy ABI binary then the result will be
1127 UNPREDICTABLE (in fact it can be predicted that it won't work
1128 at all). If in doubt say Y.
1129
Mel Gormaneb335752009-05-13 17:34:48 +01001130config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001131 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001132
Russell King07a2f732008-10-01 21:39:58 +01001133# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001134config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
Russell King05944d72006-11-30 20:43:51 +00001137config ARCH_SPARSEMEM_ENABLE
1138 bool
1139
Russell King07a2f732008-10-01 21:39:58 +01001140config ARCH_SPARSEMEM_DEFAULT
1141 def_bool ARCH_SPARSEMEM_ENABLE
1142
Russell King05944d72006-11-30 20:43:51 +00001143config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001144 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001145
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001146config NODES_SHIFT
1147 int
1148 default "4" if ARCH_LH7A40X
1149 default "2"
1150 depends on NEED_MULTIPLE_NODES
1151
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001152config HIGHMEM
1153 bool "High Memory Support (EXPERIMENTAL)"
1154 depends on MMU && EXPERIMENTAL
1155 help
1156 The address space of ARM processors is only 4 Gigabytes large
1157 and it has to accommodate user address space, kernel address
1158 space as well as some memory mapped IO. That means that, if you
1159 have a large amount of physical memory and/or IO, not all of the
1160 memory can be "permanently mapped" by the kernel. The physical
1161 memory that is not permanently mapped is called "high memory".
1162
1163 Depending on the selected kernel/user memory split, minimum
1164 vmalloc space and actual amount of RAM, you may not need this
1165 option which should result in a slightly faster kernel.
1166
1167 If unsure, say n.
1168
Russell King65cec8e2009-08-17 20:02:06 +01001169config HIGHPTE
1170 bool "Allocate 2nd-level pagetables from highmem"
1171 depends on HIGHMEM
1172 depends on !OUTER_CACHE
1173
Dave Hansen3f22ab22005-06-23 00:07:43 -07001174source "mm/Kconfig"
1175
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176config LEDS
1177 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001178 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001179 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1181 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001182 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001183 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001184 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 help
1186 If you say Y here, the LEDs on your machine will be used
1187 to provide useful information about your current system status.
1188
1189 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1190 be able to select which LEDs are active using the options below. If
1191 you are compiling a kernel for the EBSA-110 or the LART however, the
1192 red LED will simply flash regularly to indicate that the system is
1193 still functional. It is safe to say Y here if you have a CATS
1194 system, but the driver will do nothing.
1195
1196config LEDS_TIMER
1197 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001198 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1199 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001201 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 default y if ARCH_EBSA110
1203 help
1204 If you say Y here, one of the system LEDs (the green one on the
1205 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1206 will flash regularly to indicate that the system is still
1207 operational. This is mainly useful to kernel hackers who are
1208 debugging unstable kernels.
1209
1210 The LART uses the same LED for both Timer LED and CPU usage LED
1211 functions. You may choose to use both, but the Timer LED function
1212 will overrule the CPU usage LED.
1213
1214config LEDS_CPU
1215 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001216 !ARCH_OMAP) \
1217 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1218 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 depends on LEDS
1220 help
1221 If you say Y here, the red LED will be used to give a good real
1222 time indication of CPU usage, by lighting whenever the idle task
1223 is not currently executing.
1224
1225 The LART uses the same LED for both Timer LED and CPU usage LED
1226 functions. You may choose to use both, but the Timer LED function
1227 will overrule the CPU usage LED.
1228
1229config ALIGNMENT_TRAP
1230 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001231 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232 default y if !ARCH_EBSA110
1233 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001234 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1236 address divisible by 4. On 32-bit ARM processors, these non-aligned
1237 fetch/store instructions will be emulated in software if you say
1238 here, which has a severe performance impact. This is necessary for
1239 correct operation of some network protocols. With an IP-only
1240 configuration it is safe to say N, otherwise say Y.
1241
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001242config UACCESS_WITH_MEMCPY
1243 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1244 depends on MMU && EXPERIMENTAL
1245 default y if CPU_FEROCEON
1246 help
1247 Implement faster copy_to_user and clear_user methods for CPU
1248 cores where a 8-word STM instruction give significantly higher
1249 memory write throughput than a sequence of individual 32bit stores.
1250
1251 A possible side effect is a slight increase in scheduling latency
1252 between threads sharing the same address space if they invoke
1253 such copy operations with large buffers.
1254
1255 However, if the CPU data cache is using a write-allocate mode,
1256 this option is unlikely to provide any performance gain.
1257
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258endmenu
1259
1260menu "Boot options"
1261
1262# Compressed boot loader in ROM. Yes, we really want to ask about
1263# TEXT and BSS so we preserve their values in the config files.
1264config ZBOOT_ROM_TEXT
1265 hex "Compressed ROM boot loader base address"
1266 default "0"
1267 help
1268 The physical address at which the ROM-able zImage is to be
1269 placed in the target. Platforms which normally make use of
1270 ROM-able zImage formats normally set this to a suitable
1271 value in their defconfig file.
1272
1273 If ZBOOT_ROM is not enabled, this has no effect.
1274
1275config ZBOOT_ROM_BSS
1276 hex "Compressed ROM boot loader BSS address"
1277 default "0"
1278 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001279 The base address of an area of read/write memory in the target
1280 for the ROM-able zImage which must be available while the
1281 decompressor is running. It must be large enough to hold the
1282 entire decompressed kernel plus an additional 128 KiB.
1283 Platforms which normally make use of ROM-able zImage formats
1284 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285
1286 If ZBOOT_ROM is not enabled, this has no effect.
1287
1288config ZBOOT_ROM
1289 bool "Compressed boot loader in ROM/flash"
1290 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1291 help
1292 Say Y here if you intend to execute your compressed kernel image
1293 (zImage) directly from ROM or flash. If unsure, say N.
1294
1295config CMDLINE
1296 string "Default kernel command string"
1297 default ""
1298 help
1299 On some architectures (EBSA110 and CATS), there is currently no way
1300 for the boot loader to pass arguments to the kernel. For these
1301 architectures, you should supply some command-line options at build
1302 time by entering them here. As a minimum, you should specify the
1303 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1304
1305config XIP_KERNEL
1306 bool "Kernel Execute-In-Place from ROM"
1307 depends on !ZBOOT_ROM
1308 help
1309 Execute-In-Place allows the kernel to run from non-volatile storage
1310 directly addressable by the CPU, such as NOR flash. This saves RAM
1311 space since the text section of the kernel is not loaded from flash
1312 to RAM. Read-write sections, such as the data section and stack,
1313 are still copied to RAM. The XIP kernel is not compressed since
1314 it has to run directly from flash, so it will take more space to
1315 store it. The flash address used to link the kernel object files,
1316 and for storing it, is configuration dependent. Therefore, if you
1317 say Y here, you must know the proper physical address where to
1318 store the kernel image depending on your own flash memory usage.
1319
1320 Also note that the make target becomes "make xipImage" rather than
1321 "make zImage" or "make Image". The final kernel binary to put in
1322 ROM memory will be arch/arm/boot/xipImage.
1323
1324 If unsure, say N.
1325
1326config XIP_PHYS_ADDR
1327 hex "XIP Kernel Physical Location"
1328 depends on XIP_KERNEL
1329 default "0x00080000"
1330 help
1331 This is the physical address in your flash memory the kernel will
1332 be linked for and stored to. This address is dependent on your
1333 own flash usage.
1334
Richard Purdiec587e4a2007-02-06 21:29:00 +01001335config KEXEC
1336 bool "Kexec system call (EXPERIMENTAL)"
1337 depends on EXPERIMENTAL
1338 help
1339 kexec is a system call that implements the ability to shutdown your
1340 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001341 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001342 you can start any kernel with it, not just Linux.
1343
1344 It is an ongoing process to be certain the hardware in a machine
1345 is properly shutdown, so do not be surprised if this code does not
1346 initially work for you. It may help to enable device hotplugging
1347 support.
1348
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001349config ATAGS_PROC
1350 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001351 depends on KEXEC
1352 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001353 help
1354 Should the atags used to boot the kernel be exported in an "atags"
1355 file in procfs. Useful with kexec.
1356
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357endmenu
1358
Russell Kingac9d7ef2008-08-18 17:26:00 +01001359menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360
Ben Dooks89c52ed2009-07-30 23:23:24 +01001361if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362
1363source "drivers/cpufreq/Kconfig"
1364
1365config CPU_FREQ_SA1100
1366 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367
1368config CPU_FREQ_SA1110
1369 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370
1371config CPU_FREQ_INTEGRATOR
1372 tristate "CPUfreq driver for ARM Integrator CPUs"
1373 depends on ARCH_INTEGRATOR && CPU_FREQ
1374 default y
1375 help
1376 This enables the CPUfreq driver for ARM Integrator CPUs.
1377
1378 For details, take a look at <file:Documentation/cpu-freq>.
1379
1380 If in doubt, say Y.
1381
Russell King9e2697f2007-12-14 13:30:14 +00001382config CPU_FREQ_PXA
1383 bool
1384 depends on CPU_FREQ && ARCH_PXA && PXA25x
1385 default y
1386 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1387
Mark Brownb3748dd2009-06-15 11:23:20 +01001388config CPU_FREQ_S3C64XX
1389 bool "CPUfreq support for Samsung S3C64XX CPUs"
1390 depends on CPU_FREQ && CPU_S3C6410
1391
Ben Dooks9d56c022009-07-30 23:23:25 +01001392config CPU_FREQ_S3C
1393 bool
1394 help
1395 Internal configuration node for common cpufreq on Samsung SoC
1396
1397config CPU_FREQ_S3C24XX
1398 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1399 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1400 select CPU_FREQ_S3C
1401 help
1402 This enables the CPUfreq driver for the Samsung S3C24XX family
1403 of CPUs.
1404
1405 For details, take a look at <file:Documentation/cpu-freq>.
1406
1407 If in doubt, say N.
1408
1409config CPU_FREQ_S3C24XX_PLL
1410 bool "Support CPUfreq changing of PLL frequency"
1411 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1412 help
1413 Compile in support for changing the PLL frequency from the
1414 S3C24XX series CPUfreq driver. The PLL takes time to settle
1415 after a frequency change, so by default it is not enabled.
1416
1417 This also means that the PLL tables for the selected CPU(s) will
1418 be built which may increase the size of the kernel image.
1419
1420config CPU_FREQ_S3C24XX_DEBUG
1421 bool "Debug CPUfreq Samsung driver core"
1422 depends on CPU_FREQ_S3C24XX
1423 help
1424 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1425
1426config CPU_FREQ_S3C24XX_IODEBUG
1427 bool "Debug CPUfreq Samsung driver IO timing"
1428 depends on CPU_FREQ_S3C24XX
1429 help
1430 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1431
Ben Dookse6d197a2009-07-30 23:23:42 +01001432config CPU_FREQ_S3C24XX_DEBUGFS
1433 bool "Export debugfs for CPUFreq"
1434 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1435 help
1436 Export status information via debugfs.
1437
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438endif
1439
Russell Kingac9d7ef2008-08-18 17:26:00 +01001440source "drivers/cpuidle/Kconfig"
1441
1442endmenu
1443
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444menu "Floating point emulation"
1445
1446comment "At least one emulation must be selected"
1447
1448config FPE_NWFPE
1449 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001450 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451 ---help---
1452 Say Y to include the NWFPE floating point emulator in the kernel.
1453 This is necessary to run most binaries. Linux does not currently
1454 support floating point hardware so you need to say Y here even if
1455 your machine has an FPA or floating point co-processor podule.
1456
1457 You may say N here if you are going to load the Acorn FPEmulator
1458 early in the bootup.
1459
1460config FPE_NWFPE_XP
1461 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001462 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463 help
1464 Say Y to include 80-bit support in the kernel floating-point
1465 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1466 Note that gcc does not generate 80-bit operations by default,
1467 so in most cases this option only enlarges the size of the
1468 floating point emulator without any good reason.
1469
1470 You almost surely want to say N here.
1471
1472config FPE_FASTFPE
1473 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001474 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 ---help---
1476 Say Y here to include the FAST floating point emulator in the kernel.
1477 This is an experimental much faster emulator which now also has full
1478 precision for the mantissa. It does not support any exceptions.
1479 It is very simple, and approximately 3-6 times faster than NWFPE.
1480
1481 It should be sufficient for most programs. It may be not suitable
1482 for scientific calculations, but you have to check this for yourself.
1483 If you do not feel you need a faster FP emulation you should better
1484 choose NWFPE.
1485
1486config VFP
1487 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001488 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 help
1490 Say Y to include VFP support code in the kernel. This is needed
1491 if your hardware includes a VFP unit.
1492
1493 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1494 release notes and additional status information.
1495
1496 Say N if your target does not have VFP hardware.
1497
Catalin Marinas25ebee02007-09-25 15:22:24 +01001498config VFPv3
1499 bool
1500 depends on VFP
1501 default y if CPU_V7
1502
Catalin Marinasb5872db2008-01-10 19:16:17 +01001503config NEON
1504 bool "Advanced SIMD (NEON) Extension support"
1505 depends on VFPv3 && CPU_V7
1506 help
1507 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1508 Extension.
1509
Linus Torvalds1da177e2005-04-16 15:20:36 -07001510endmenu
1511
1512menu "Userspace binary formats"
1513
1514source "fs/Kconfig.binfmt"
1515
1516config ARTHUR
1517 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001518 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519 help
1520 Say Y here to include the kernel code necessary if you want to run
1521 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1522 experimental; if this sounds frightening, say N and sleep in peace.
1523 You can also say M here to compile this support as a module (which
1524 will be called arthur).
1525
1526endmenu
1527
1528menu "Power management options"
1529
Russell Kingeceab4a2005-11-15 11:31:41 +00001530source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531
Johannes Bergf4cb5702007-12-08 02:14:00 +01001532config ARCH_SUSPEND_POSSIBLE
1533 def_bool y
1534
Linus Torvalds1da177e2005-04-16 15:20:36 -07001535endmenu
1536
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001537source "net/Kconfig"
1538
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001539source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540
1541source "fs/Kconfig"
1542
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543source "arch/arm/Kconfig.debug"
1544
1545source "security/Kconfig"
1546
1547source "crypto/Kconfig"
1548
1549source "lib/Kconfig"