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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050016 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 help
27 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000028 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000030 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 Europe. There is an ARM Linux project with a web page at
32 <http://www.arm.linux.org.uk/>.
33
Russell King1a189b92008-04-13 21:41:55 +010034config HAVE_PWM
35 bool
36
Ralf Baechle75e71532007-02-09 17:08:58 +000037config SYS_SUPPORTS_APM_EMULATION
38 bool
39
David Brownell0a938b92007-03-05 00:30:18 -080040config GENERIC_GPIO
41 bool
David Brownell0a938b92007-03-05 00:30:18 -080042
Kevin Hilman746140c2006-09-22 00:16:30 +010043config GENERIC_TIME
44 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010045
Kevin Hilman0567a0c2007-03-13 20:29:24 +010046config GENERIC_CLOCKEVENTS
47 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010048
Catalin Marinasa8655e82008-02-04 17:30:57 +010049config GENERIC_CLOCKEVENTS_BROADCAST
50 bool
51 depends on GENERIC_CLOCKEVENTS
52 default y if SMP && !LOCAL_TIMERS
53
Linus Walleijbc581772009-09-15 17:30:37 +010054config HAVE_TCM
55 bool
56 select GENERIC_ALLOCATOR
57
Russell Kinge119bff2010-01-10 17:23:29 +000058config HAVE_PROC_CPU
59 bool
60
Al Viro5ea81762007-02-11 15:41:31 +000061config NO_IOPORT
62 bool
Al Viro5ea81762007-02-11 15:41:31 +000063
Linus Torvalds1da177e2005-04-16 15:20:36 -070064config EISA
65 bool
66 ---help---
67 The Extended Industry Standard Architecture (EISA) bus was
68 developed as an open alternative to the IBM MicroChannel bus.
69
70 The EISA bus provided some of the features of the IBM MicroChannel
71 bus while maintaining backward compatibility with cards made for
72 the older ISA bus. The EISA bus saw limited use between 1988 and
73 1995 when it was made obsolete by the PCI bus.
74
75 Say Y here if you are building a kernel for an EISA-based machine.
76
77 Otherwise, say N.
78
79config SBUS
80 bool
81
82config MCA
83 bool
84 help
85 MicroChannel Architecture is found in some IBM PS/2 machines and
86 laptops. It is a bus system similar to PCI or ISA. See
87 <file:Documentation/mca.txt> (and especially the web page given
88 there) before attempting to build an MCA bus kernel.
89
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010090config GENERIC_HARDIRQS
91 bool
92 default y
93
Russell Kingf16fb1e2007-04-28 09:59:37 +010094config STACKTRACE_SUPPORT
95 bool
96 default y
97
Nicolas Pitref76e9152008-04-24 01:31:46 -040098config HAVE_LATENCYTOP_SUPPORT
99 bool
100 depends on !SMP
101 default y
102
Russell Kingf16fb1e2007-04-28 09:59:37 +0100103config LOCKDEP_SUPPORT
104 bool
105 default y
106
Russell King7ad1bcb2006-08-27 12:07:02 +0100107config TRACE_IRQFLAGS_SUPPORT
108 bool
109 default y
110
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100111config HARDIRQS_SW_RESEND
112 bool
113 default y
114
115config GENERIC_IRQ_PROBE
116 bool
117 default y
118
Nick Piggin95c354f2008-01-30 13:31:20 +0100119config GENERIC_LOCKBREAK
120 bool
121 default y
122 depends on SMP && PREEMPT
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124config RWSEM_GENERIC_SPINLOCK
125 bool
126 default y
127
128config RWSEM_XCHGADD_ALGORITHM
129 bool
130
David Howellsf0d1b0b2006-12-08 02:37:49 -0800131config ARCH_HAS_ILOG2_U32
132 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800133
134config ARCH_HAS_ILOG2_U64
135 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136
Ben Dooks89c52ed2009-07-30 23:23:24 +0100137config ARCH_HAS_CPUFREQ
138 bool
139 help
140 Internal node to signify that the ARCH has CPUFREQ support
141 and that the relevant menu configurations are displayed for
142 it.
143
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800144config GENERIC_HWEIGHT
145 bool
146 default y
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148config GENERIC_CALIBRATE_DELAY
149 bool
150 default y
151
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100152config ARCH_MAY_HAVE_PC_FDC
153 bool
154
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800155config ZONE_DMA
156 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800157
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800158config NEED_DMA_MAP_STATE
159 def_bool y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config GENERIC_ISA_DMA
162 bool
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config FIQ
165 bool
166
Al Viro034d2f52005-12-19 16:27:59 -0500167config ARCH_MTD_XIP
168 bool
169
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100170config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100171 def_bool y
172
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100173config ARM_L1_CACHE_SHIFT_6
174 bool
175 help
176 Setting ARM L1 cache line size to 64 Bytes.
177
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500178if OPROFILE
179
180config OPROFILE_ARMV6
181 def_bool y
182 depends on CPU_V6 && !SMP
183 select OPROFILE_ARM11_CORE
184
185config OPROFILE_MPCORE
186 def_bool y
187 depends on CPU_V6 && SMP
188 select OPROFILE_ARM11_CORE
189
190config OPROFILE_ARM11_CORE
191 bool
192
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100193config OPROFILE_ARMV7
194 def_bool y
195 depends on CPU_V7 && !SMP
196 bool
197
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500198endif
199
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200config VECTORS_BASE
201 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900202 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100203 default DRAM_BASE if REMAP_VECTORS_TO_RAM
204 default 0x00000000
205 help
206 The base address of exception vectors.
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208source "init/Kconfig"
209
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700210source "kernel/Kconfig.freezer"
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212menu "System Type"
213
Hyok S. Choi3c427972009-07-24 12:35:00 +0100214config MMU
215 bool "MMU-based Paged Memory Management Support"
216 default y
217 help
218 Select if you want MMU-based virtualised addressing space
219 support by paged memory management. If unsure, say 'Y'.
220
Russell Kingccf50e22010-03-15 19:03:06 +0000221#
222# The "ARM system type" choice list is ordered alphabetically by option
223# text. Please add new entries in the option alphabetic order.
224#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225choice
226 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000227 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229config ARCH_AAEC2000
230 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000231 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 help
235 This enables support for systems based on the Agilent AAEC-2000
236
237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700241 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000242 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100243 select ICST525
244 help
245 Support for ARM's Integrator platform.
246
247config ARCH_REALVIEW
248 bool "ARM Ltd. RealView family"
249 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700250 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000251 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100252 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100253 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100256 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257 help
258 This enables support for ARM Ltd RealView boards.
259
260config ARCH_VERSATILE
261 bool "ARM Ltd. Versatile family"
262 select ARM_AMBA
263 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700264 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000265 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100266 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100267 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100268 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100269 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100270 help
271 This enables support for ARM Ltd Versatile board.
272
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100273config ARCH_AT91
274 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800275 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100276 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700277 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100278 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100279 This enables support for systems based on the Atmel AT91RM9200,
280 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281
Russell Kingccf50e22010-03-15 19:03:06 +0000282config ARCH_BCMRING
283 bool "Broadcom BCMRING"
284 depends on MMU
285 select CPU_V6
286 select ARM_AMBA
287 select COMMON_CLKDEV
288 select GENERIC_TIME
289 select GENERIC_CLOCKEVENTS
290 select ARCH_WANT_OPTIONAL_GPIOLIB
291 help
292 Support for Broadcom's BCMRing platform.
293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100295 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000296 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000297 help
298 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
Russell King788c9702009-04-26 14:21:59 +0100300config ARCH_GEMINI
301 bool "Cortina Systems Gemini"
302 select CPU_FA526
303 select GENERIC_GPIO
304 select ARCH_REQUIRE_GPIOLIB
305 help
306 Support for the Cortina Systems Gemini family SoCs
307
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308config ARCH_EBSA110
309 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000310 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100311 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000312 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 help
314 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000315 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 Ethernet interface, two PCMCIA sockets, two serial ports and a
317 parallel port.
318
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000319config ARCH_EP93XX
320 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000321 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000322 select ARM_AMBA
323 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100324 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700325 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000326 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700327 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100328 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000329 help
330 This enables support for the Cirrus EP93xx series of CPUs.
331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332config ARCH_FOOTBRIDGE
333 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000334 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000336 help
337 Support for systems based on the DC21285 companion chip
338 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Russell King788c9702009-04-26 14:21:59 +0100340config ARCH_MXC
341 bool "Freescale MXC/iMX-based"
342 select GENERIC_TIME
343 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100344 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100345 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100346 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100347 help
348 Support for Freescale MXC/iMX-based family of processors
349
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100350config ARCH_STMP3XXX
351 bool "Freescale STMP3xxx"
352 select CPU_ARM926T
353 select HAVE_CLK
354 select COMMON_CLKDEV
355 select ARCH_REQUIRE_GPIOLIB
356 select GENERIC_TIME
357 select GENERIC_CLOCKEVENTS
358 select GENERIC_GPIO
359 select USB_ARCH_HAS_EHCI
360 help
361 Support for systems based on the Freescale 3xxx CPUs.
362
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100363config ARCH_NETX
364 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000365 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100366 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100367 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100368 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370 This enables support for systems based on the Hilscher NetX Soc
371
372config ARCH_H720X
373 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000374 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 select ISA_DMA_API
376 help
377 This enables support for systems based on the Hynix HMS720x
378
Russell King3b938be2007-05-12 11:25:44 +0100379config ARCH_IOP13XX
380 bool "IOP13xx-based"
381 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000382 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100383 select PLAT_IOP
384 select PCI
385 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100386 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100387 help
388 Support for Intel's IOP13XX (XScale) family of processors.
389
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100390config ARCH_IOP32X
391 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100392 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100394 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100395 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100396 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100397 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100399 Support for Intel's 80219 and IOP32X (XScale) family of
400 processors.
401
402config ARCH_IOP33X
403 bool "IOP33x-based"
404 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100406 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100408 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100409 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100410 help
411 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412
Russell King3b938be2007-05-12 11:25:44 +0100413config ARCH_IXP23XX
414 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100415 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100417 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100418 help
Russell King3b938be2007-05-12 11:25:44 +0100419 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421config ARCH_IXP2000
422 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100423 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000426 help
427 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428
Russell King3b938be2007-05-12 11:25:44 +0100429config ARCH_IXP4XX
430 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100431 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000432 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100433 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100434 select GENERIC_TIME
435 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100436 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100437 help
Russell King3b938be2007-05-12 11:25:44 +0100438 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100439
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440config ARCH_L7200
441 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000442 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 select FIQ
444 help
445 Say Y here if you intend to run this kernel on a LinkUp Systems
446 L7200 Software Development Board which uses an ARM720T processor.
447 Information on this board can be obtained at:
448
449 <http://www.linkupsys.com/>
450
451 If you have any questions or comments about the Linux kernel port
452 to this board, send e-mail to <sjhill@cotw.com>.
453
Saeed Bisharaedabd382009-08-06 15:12:43 +0300454config ARCH_DOVE
455 bool "Marvell Dove"
456 select PCI
457 select GENERIC_GPIO
458 select ARCH_REQUIRE_GPIOLIB
459 select GENERIC_TIME
460 select GENERIC_CLOCKEVENTS
461 select PLAT_ORION
462 help
463 Support for the Marvell Dove SoC 88AP510
464
Saeed Bishara651c74c2008-06-22 22:45:06 +0200465config ARCH_KIRKWOOD
466 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000467 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200468 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200469 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700470 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200471 select GENERIC_TIME
472 select GENERIC_CLOCKEVENTS
473 select PLAT_ORION
474 help
475 Support for the following Marvell Kirkwood series SoCs:
476 88F6180, 88F6192 and 88F6281.
477
Russell King788c9702009-04-26 14:21:59 +0100478config ARCH_LOKI
479 bool "Marvell Loki (88RC8480)"
480 select CPU_FEROCEON
481 select GENERIC_TIME
482 select GENERIC_CLOCKEVENTS
483 select PLAT_ORION
484 help
485 Support for the Marvell Loki (88RC8480) SoC.
486
487config ARCH_MV78XX0
488 bool "Marvell MV78xx0"
489 select CPU_FEROCEON
490 select PCI
491 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700492 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100493 select GENERIC_TIME
494 select GENERIC_CLOCKEVENTS
495 select PLAT_ORION
496 help
497 Support for the following Marvell MV78xx0 series SoCs:
498 MV781x0, MV782x0.
499
500config ARCH_ORION5X
501 bool "Marvell Orion"
502 depends on MMU
503 select CPU_FEROCEON
504 select PCI
505 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700506 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100507 select GENERIC_TIME
508 select GENERIC_CLOCKEVENTS
509 select PLAT_ORION
510 help
511 Support for the following Marvell Orion 5x series SoCs:
512 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
513 Orion-2 (5281), Orion-1-90 (6183).
514
515config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500516 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100517 depends on MMU
518 select GENERIC_GPIO
519 select ARCH_REQUIRE_GPIOLIB
520 select HAVE_CLK
521 select COMMON_CLKDEV
522 select GENERIC_TIME
523 select GENERIC_CLOCKEVENTS
524 select TICK_ONESHOT
525 select PLAT_PXA
526 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500527 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100528
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100529config ARCH_KS8695
530 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000531 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100532 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000533 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100534 help
535 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
536 System-on-Chip devices.
537
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100538config ARCH_NS9XXX
539 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000540 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100541 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100542 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100543 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700544 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100545 help
546 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
547 System.
548
549 <http://www.digi.com/products/microprocessors/index.jsp>
550
Russell King788c9702009-04-26 14:21:59 +0100551config ARCH_W90X900
552 bool "Nuvoton W90X900 CPU"
553 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100554 select ARCH_REQUIRE_GPIOLIB
555 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100556 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100557 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100558 select GENERIC_TIME
559 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200560 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100561 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
562 At present, the w90x900 has been renamed nuc900, regarding
563 the ARM series product line, you can login the following
564 link address to know more.
565
566 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
567 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400568
wanzongshuna62e9032009-12-31 15:06:05 +0100569config ARCH_NUC93X
570 bool "Nuvoton NUC93X CPU"
571 select CPU_ARM926T
572 select HAVE_CLK
573 select COMMON_CLKDEV
574 help
575 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
576 low-power and high performance MPEG-4/JPEG multimedia controller chip.
577
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100578config ARCH_PNX4008
579 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000580 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700581 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000582 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100583 help
584 This enables support for Philips PNX4008 mobile platform.
585
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700587 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100588 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500589 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100590 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800591 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700592 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000593 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700594 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100595 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100596 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000597 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800598 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000599 help
eric miao2c8086a2007-09-11 19:13:17 -0700600 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601
Russell King788c9702009-04-26 14:21:59 +0100602config ARCH_MSM
603 bool "Qualcomm MSM"
604 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800605 select GENERIC_TIME
606 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800607 help
Russell King788c9702009-04-26 14:21:59 +0100608 Support for Qualcomm MSM7K based systems. This runs on the ARM11
609 apps processor of the MSM7K and depends on a shared memory
610 interface to the ARM9 modem processor which runs the baseband stack
611 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800612
Magnus Dammc793c1b2010-02-05 11:14:49 +0000613config ARCH_SHMOBILE
614 bool "Renesas SH-Mobile"
615 help
616 Support for Renesas's SH-Mobile ARM platforms
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618config ARCH_RPC
619 bool "RiscPC"
620 select ARCH_ACORN
621 select FIQ
622 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100623 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100624 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000625 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000626 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100627 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 help
629 On the Acorn Risc-PC, Linux can support the internal IDE disk and
630 CD-ROM interface, serial and parallel port, and the floppy drive.
631
632config ARCH_SA1100
633 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000634 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100635 select ISA
Russell King05944d72006-11-30 20:43:51 +0000636 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500637 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100638 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000639 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800640 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000641 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100642 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700643 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100644 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700645 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000646 help
647 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648
649config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900650 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800651 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100652 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700653 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654 help
655 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
656 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000657 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658
Ben Dooks63b1f512010-04-30 16:32:26 +0900659 Note, the S3C2416 and the S3C2450 are so close that they even share
660 the same SoC ID code. This means that there is no seperate machine
661 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
662
Ben Dooksa08ab632008-10-21 14:06:39 +0100663config ARCH_S3C64XX
664 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000665 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900666 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100667 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900668 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100669 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900670 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100671 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900672 select ARCH_REQUIRE_GPIOLIB
673 select SAMSUNG_CLKSRC
674 select SAMSUNG_IRQ_VIC_TIMER
675 select SAMSUNG_IRQ_UART
676 select S3C_GPIO_TRACK
677 select S3C_GPIO_PULL_UPDOWN
678 select S3C_GPIO_CFG_S3C24XX
679 select S3C_GPIO_CFG_S3C64XX
680 select S3C_DEV_NAND
681 select USB_ARCH_HAS_OHCI
682 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100683 help
684 Samsung S3C64XX series based systems
685
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900686config ARCH_S5P6440
687 bool "Samsung S5P6440"
688 select CPU_V6
689 select GENERIC_GPIO
690 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900691 select ARCH_USES_GETTIMEOFFSET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900692 help
693 Samsung S5P6440 CPU based systems
694
Kukjin Kim550db7f2010-01-29 10:19:26 +0900695config ARCH_S5P6442
696 bool "Samsung S5P6442"
697 select CPU_V6
698 select GENERIC_GPIO
699 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900700 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim550db7f2010-01-29 10:19:26 +0900701 help
702 Samsung S5P6442 CPU based systems
703
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200704config ARCH_S5PC100
705 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900706 select GENERIC_GPIO
707 select HAVE_CLK
708 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100709 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900710 select ARCH_USES_GETTIMEOFFSET
Byungho Min5a7652f2009-06-23 21:39:42 +0900711 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200712 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900713
Kukjin Kim170f4e42010-02-24 16:40:44 +0900714config ARCH_S5PV210
715 bool "Samsung S5PV210/S5PC110"
716 select CPU_V7
717 select GENERIC_GPIO
718 select HAVE_CLK
719 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900720 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim170f4e42010-02-24 16:40:44 +0900721 help
722 Samsung S5PV210/S5PC110 series based systems
723
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724config ARCH_SHARK
725 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000726 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100727 select ISA
728 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100729 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100730 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000731 help
732 Support for the StrongARM based Digital DNARD machine, also known
733 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700734
735config ARCH_LH7A40X
736 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000737 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100738 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
739 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 help
741 Say Y here for systems based on one of the Sharp LH7A40X
742 System on a Chip processors. These CPUs include an ARM922T
743 core with a wide array of integrated devices for
744 hand-held and low-power applications.
745
Linus Walleijd98aac72009-04-27 10:21:46 +0100746config ARCH_U300
747 bool "ST-Ericsson U300 Series"
748 depends on MMU
749 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100750 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100751 select ARM_AMBA
752 select ARM_VIC
753 select GENERIC_TIME
754 select GENERIC_CLOCKEVENTS
755 select HAVE_CLK
756 select COMMON_CLKDEV
757 select GENERIC_GPIO
758 help
759 Support for ST-Ericsson U300 series mobile platforms.
760
Russell Kingccf50e22010-03-15 19:03:06 +0000761config ARCH_U8500
762 bool "ST-Ericsson U8500 Series"
763 select CPU_V7
764 select ARM_AMBA
765 select GENERIC_TIME
766 select GENERIC_CLOCKEVENTS
767 select COMMON_CLKDEV
768 help
769 Support for ST-Ericsson's Ux500 architecture
770
771config ARCH_NOMADIK
772 bool "STMicroelectronics Nomadik"
773 select ARM_AMBA
774 select ARM_VIC
775 select CPU_ARM926T
776 select HAVE_CLK
777 select COMMON_CLKDEV
778 select GENERIC_TIME
779 select GENERIC_CLOCKEVENTS
780 select GENERIC_GPIO
781 select ARCH_REQUIRE_GPIOLIB
782 help
783 Support for the Nomadik platform by ST-Ericsson
784
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100785config ARCH_DAVINCI
786 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000787 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100788 select GENERIC_TIME
789 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100790 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700791 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700792 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100793 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700794 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700795 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700796 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530797 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100798 help
799 Support for TI's DaVinci platform.
800
Russell King3b938be2007-05-12 11:25:44 +0100801config ARCH_OMAP
802 bool "TI OMAP"
803 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700804 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700805 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100806 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100807 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700808 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800809 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100810 help
811 Support for TI's OMAP platform (OMAP1 and OMAP2).
812
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813endchoice
814
Russell Kingccf50e22010-03-15 19:03:06 +0000815#
816# This is sorted alphabetically by mach-* pathname. However, plat-*
817# Kconfigs may be included either alphabetically (according to the
818# plat- suffix) or along side the corresponding mach-* source.
819#
Russell King95b8f202010-01-14 11:43:54 +0000820source "arch/arm/mach-aaec2000/Kconfig"
821
822source "arch/arm/mach-at91/Kconfig"
823
824source "arch/arm/mach-bcmring/Kconfig"
825
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826source "arch/arm/mach-clps711x/Kconfig"
827
Russell King95b8f202010-01-14 11:43:54 +0000828source "arch/arm/mach-davinci/Kconfig"
829
830source "arch/arm/mach-dove/Kconfig"
831
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000832source "arch/arm/mach-ep93xx/Kconfig"
833
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834source "arch/arm/mach-footbridge/Kconfig"
835
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200836source "arch/arm/mach-gemini/Kconfig"
837
Russell King95b8f202010-01-14 11:43:54 +0000838source "arch/arm/mach-h720x/Kconfig"
839
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840source "arch/arm/mach-integrator/Kconfig"
841
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100842source "arch/arm/mach-iop32x/Kconfig"
843
844source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845
Dan Williams285f5fa2006-12-07 02:59:39 +0100846source "arch/arm/mach-iop13xx/Kconfig"
847
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848source "arch/arm/mach-ixp4xx/Kconfig"
849
850source "arch/arm/mach-ixp2000/Kconfig"
851
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100852source "arch/arm/mach-ixp23xx/Kconfig"
853
Russell King95b8f202010-01-14 11:43:54 +0000854source "arch/arm/mach-kirkwood/Kconfig"
855
856source "arch/arm/mach-ks8695/Kconfig"
857
858source "arch/arm/mach-lh7a40x/Kconfig"
859
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200860source "arch/arm/mach-loki/Kconfig"
861
Russell King95b8f202010-01-14 11:43:54 +0000862source "arch/arm/mach-msm/Kconfig"
863
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200864source "arch/arm/mach-mv78xx0/Kconfig"
865
Russell King95b8f202010-01-14 11:43:54 +0000866source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867
Russell King95b8f202010-01-14 11:43:54 +0000868source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800869
Russell King95b8f202010-01-14 11:43:54 +0000870source "arch/arm/mach-nomadik/Kconfig"
871source "arch/arm/plat-nomadik/Kconfig"
872
873source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874
Russell Kingd91a89102010-02-04 18:13:17 +0000875source "arch/arm/mach-nuc93x/Kconfig"
876
Tony Lindgrend48af152005-07-10 19:58:17 +0100877source "arch/arm/plat-omap/Kconfig"
878
879source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Tony Lindgren1dbae812005-11-10 14:26:51 +0000881source "arch/arm/mach-omap2/Kconfig"
882
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400883source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400884
Russell King95b8f202010-01-14 11:43:54 +0000885source "arch/arm/mach-pxa/Kconfig"
886source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Russell King95b8f202010-01-14 11:43:54 +0000888source "arch/arm/mach-mmp/Kconfig"
889
890source "arch/arm/mach-realview/Kconfig"
891
892source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300893
Ben Dookscf383672009-11-10 00:14:58 +0000894source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100895source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900896source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100897
898if ARCH_S3C2410
899source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100901source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900902source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100903source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100904source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100905endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906
Ben Dooksa08ab632008-10-21 14:06:39 +0100907if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900908source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100909endif
910
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900911source "arch/arm/mach-s5p6440/Kconfig"
912
Kukjin Kim550db7f2010-01-29 10:19:26 +0900913source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100914
Byungho Min5a7652f2009-06-23 21:39:42 +0900915source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900916
Kukjin Kim170f4e42010-02-24 16:40:44 +0900917source "arch/arm/mach-s5pv210/Kconfig"
918
Russell King882d01f2010-03-02 23:40:15 +0000919source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920
Russell King882d01f2010-03-02 23:40:15 +0000921source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800922
Russell King95b8f202010-01-14 11:43:54 +0000923source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100924
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926
927source "arch/arm/mach-versatile/Kconfig"
928
wanzongshun7ec80dd2008-12-03 03:55:38 +0100929source "arch/arm/mach-w90x900/Kconfig"
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931# Definitions to make life easier
932config ARCH_ACORN
933 bool
934
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100935config PLAT_IOP
936 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700937 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700938 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100939
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400940config PLAT_ORION
941 bool
942
Eric Miaobd5ce432009-01-20 12:06:01 +0800943config PLAT_PXA
944 bool
945
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946source arch/arm/mm/Kconfig
947
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100948config IWMMXT
949 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800950 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
951 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100952 help
953 Enable support for iWMMXt context switching at run time if
954 running on a CPU that supports it.
955
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
957config XSCALE_PMU
958 bool
959 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
960 default y
961
Jamie Iles0f4f0672010-02-02 20:23:15 +0100962config CPU_HAS_PMU
963 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
964 default y
965 bool
966
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100967if !MMU
968source "arch/arm/Kconfig-nommu"
969endif
970
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100971config ARM_ERRATA_411920
972 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
973 depends on CPU_V6 && !SMP
974 help
975 Invalidation of the Instruction Cache operation can
976 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
977 It does not affect the MPCore. This option enables the ARM Ltd.
978 recommended workaround.
979
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100980config ARM_ERRATA_430973
981 bool "ARM errata: Stale prediction on replaced interworking branch"
982 depends on CPU_V7
983 help
984 This option enables the workaround for the 430973 Cortex-A8
985 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
986 interworking branch is replaced with another code sequence at the
987 same virtual address, whether due to self-modifying code or virtual
988 to physical address re-mapping, Cortex-A8 does not recover from the
989 stale interworking branch prediction. This results in Cortex-A8
990 executing the new code sequence in the incorrect ARM or Thumb state.
991 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
992 and also flushes the branch target cache at every context switch.
993 Note that setting specific bits in the ACTLR register may not be
994 available in non-secure mode.
995
Catalin Marinas855c5512009-04-30 17:06:15 +0100996config ARM_ERRATA_458693
997 bool "ARM errata: Processor deadlock when a false hazard is created"
998 depends on CPU_V7
999 help
1000 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1001 erratum. For very specific sequences of memory operations, it is
1002 possible for a hazard condition intended for a cache line to instead
1003 be incorrectly associated with a different cache line. This false
1004 hazard might then cause a processor deadlock. The workaround enables
1005 the L1 caching of the NEON accesses and disables the PLD instruction
1006 in the ACTLR register. Note that setting specific bits in the ACTLR
1007 register may not be available in non-secure mode.
1008
Catalin Marinas0516e462009-04-30 17:06:20 +01001009config ARM_ERRATA_460075
1010 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1011 depends on CPU_V7
1012 help
1013 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1014 erratum. Any asynchronous access to the L2 cache may encounter a
1015 situation in which recent store transactions to the L2 cache are lost
1016 and overwritten with stale memory contents from external memory. The
1017 workaround disables the write-allocate mode for the L2 cache via the
1018 ACTLR register. Note that setting specific bits in the ACTLR register
1019 may not be available in non-secure mode.
1020
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001021config PL310_ERRATA_588369
1022 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1023 depends on CACHE_L2X0 && ARCH_OMAP4
1024 help
1025 The PL310 L2 cache controller implements three types of Clean &
1026 Invalidate maintenance operations: by Physical Address
1027 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1028 They are architecturally defined to behave as the execution of a
1029 clean operation followed immediately by an invalidate operation,
1030 both performing to the same memory location. This functionality
1031 is not correctly implemented in PL310 as clean lines are not
1032 invalidated as a result of these operations. Note that this errata
1033 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034endmenu
1035
1036source "arch/arm/common/Kconfig"
1037
1038config FORCE_MAX_ZONEORDER
1039 int
1040 depends on SA1111
1041 default "9"
1042
1043menu "Bus support"
1044
1045config ARM_AMBA
1046 bool
1047
1048config ISA
1049 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 help
1051 Find out whether you have ISA slots on your motherboard. ISA is the
1052 name of a bus system, i.e. the way the CPU talks to the other stuff
1053 inside your box. Other bus systems are PCI, EISA, MicroChannel
1054 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1055 newer boards don't support it. If you have ISA, say Y, otherwise N.
1056
Russell King065909b2006-01-04 15:44:16 +00001057# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058config ISA_DMA
1059 bool
Russell King065909b2006-01-04 15:44:16 +00001060 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061
Russell King065909b2006-01-04 15:44:16 +00001062# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001063config ISA_DMA_API
1064 bool
Al Viro5cae8412005-05-04 05:39:22 +01001065
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001067 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068 help
1069 Find out whether you have a PCI motherboard. PCI is the name of a
1070 bus system, i.e. the way the CPU talks to the other stuff inside
1071 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1072 VESA. If you have PCI, say Y, otherwise N.
1073
Matthew Wilcox36e23592007-07-10 10:54:40 -06001074config PCI_SYSCALL
1075 def_bool PCI
1076
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077# Select the host bridge type
1078config PCI_HOST_VIA82C505
1079 bool
1080 depends on PCI && ARCH_SHARK
1081 default y
1082
Mike Rapoporta0113a92007-11-25 08:55:34 +01001083config PCI_HOST_ITE8152
1084 bool
1085 depends on PCI && MACH_ARMCORE
1086 default y
1087 select DMABOUNCE
1088
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089source "drivers/pci/Kconfig"
1090
1091source "drivers/pcmcia/Kconfig"
1092
1093endmenu
1094
1095menu "Kernel Features"
1096
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001097source "kernel/time/Kconfig"
1098
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099config SMP
1100 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001101 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001102 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001103 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001104 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001105 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106 help
1107 This enables support for systems with more than one CPU. If you have
1108 a system with only one CPU, like most personal computers, say N. If
1109 you have a system with more than one CPU, say Y.
1110
1111 If you say N here, the kernel will run on single and multiprocessor
1112 machines, but will use only one CPU of a multiprocessor machine. If
1113 you say Y here, the kernel will run on many, but not all, single
1114 processor machines. On a single processor machine, the kernel will
1115 run faster if you say N here.
1116
Adrian Bunk03502fa2008-02-03 15:50:21 +02001117 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1119 <http://www.linuxdoc.org/docs.html#howto>.
1120
1121 If you don't know what to do here, say N.
1122
Russell Kinga8cbcd92009-05-16 11:51:14 +01001123config HAVE_ARM_SCU
1124 bool
1125 depends on SMP
1126 help
1127 This option enables support for the ARM system coherency unit
1128
Russell Kingf32f4ce2009-05-16 12:14:21 +01001129config HAVE_ARM_TWD
1130 bool
1131 depends on SMP
1132 help
1133 This options enables support for the ARM timer and watchdog unit
1134
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001135choice
1136 prompt "Memory split"
1137 default VMSPLIT_3G
1138 help
1139 Select the desired split between kernel and user memory.
1140
1141 If you are not absolutely sure what you are doing, leave this
1142 option alone!
1143
1144 config VMSPLIT_3G
1145 bool "3G/1G user/kernel split"
1146 config VMSPLIT_2G
1147 bool "2G/2G user/kernel split"
1148 config VMSPLIT_1G
1149 bool "1G/3G user/kernel split"
1150endchoice
1151
1152config PAGE_OFFSET
1153 hex
1154 default 0x40000000 if VMSPLIT_1G
1155 default 0x80000000 if VMSPLIT_2G
1156 default 0xC0000000
1157
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158config NR_CPUS
1159 int "Maximum number of CPUs (2-32)"
1160 range 2 32
1161 depends on SMP
1162 default "4"
1163
Russell Kinga054a812005-11-02 22:24:33 +00001164config HOTPLUG_CPU
1165 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1166 depends on SMP && HOTPLUG && EXPERIMENTAL
1167 help
1168 Say Y here to experiment with turning CPUs off and on. CPUs
1169 can be controlled through /sys/devices/system/cpu.
1170
Russell King37ee16a2005-11-08 19:08:05 +00001171config LOCAL_TIMERS
1172 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001173 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001174 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001175 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001176 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001177 help
1178 Enable support for local timers on SMP platforms, rather then the
1179 legacy IPI broadcast method. Local timers allows the system
1180 accounting to be spread across the timer interval, preventing a
1181 "thundering herd" at every timer tick.
1182
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001183source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184
Russell Kingf8065812006-03-02 22:41:59 +00001185config HZ
1186 int
1187 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001188 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001189 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001190 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001191 default 100
1192
Catalin Marinas16c79652009-07-24 12:33:02 +01001193config THUMB2_KERNEL
1194 bool "Compile the kernel in Thumb-2 mode"
1195 depends on CPU_V7 && EXPERIMENTAL
1196 select AEABI
1197 select ARM_ASM_UNIFIED
1198 help
1199 By enabling this option, the kernel will be compiled in
1200 Thumb-2 mode. A compiler/assembler that understand the unified
1201 ARM-Thumb syntax is needed.
1202
1203 If unsure, say N.
1204
Catalin Marinas0becb082009-07-24 12:32:53 +01001205config ARM_ASM_UNIFIED
1206 bool
1207
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001208config AEABI
1209 bool "Use the ARM EABI to compile the kernel"
1210 help
1211 This option allows for the kernel to be compiled using the latest
1212 ARM ABI (aka EABI). This is only useful if you are using a user
1213 space environment that is also compiled with EABI.
1214
1215 Since there are major incompatibilities between the legacy ABI and
1216 EABI, especially with regard to structure member alignment, this
1217 option also changes the kernel syscall calling convention to
1218 disambiguate both ABIs and allow for backward compatibility support
1219 (selected with CONFIG_OABI_COMPAT).
1220
1221 To use this you need GCC version 4.0.0 or later.
1222
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001223config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001224 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001225 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001226 default y
1227 help
1228 This option preserves the old syscall interface along with the
1229 new (ARM EABI) one. It also provides a compatibility layer to
1230 intercept syscalls that have structure arguments which layout
1231 in memory differs between the legacy ABI and the new ARM EABI
1232 (only for non "thumb" binaries). This option adds a tiny
1233 overhead to all syscalls and produces a slightly larger kernel.
1234 If you know you'll be using only pure EABI user space then you
1235 can say N here. If this option is not selected and you attempt
1236 to execute a legacy ABI binary then the result will be
1237 UNPREDICTABLE (in fact it can be predicted that it won't work
1238 at all). If in doubt say Y.
1239
Mel Gormaneb335752009-05-13 17:34:48 +01001240config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001241 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001242
Russell King07a2f732008-10-01 21:39:58 +01001243# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001244config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246
Russell King05944d72006-11-30 20:43:51 +00001247config ARCH_SPARSEMEM_ENABLE
1248 bool
1249
Russell King07a2f732008-10-01 21:39:58 +01001250config ARCH_SPARSEMEM_DEFAULT
1251 def_bool ARCH_SPARSEMEM_ENABLE
1252
Russell King05944d72006-11-30 20:43:51 +00001253config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001254 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001255
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001256config NODES_SHIFT
1257 int
1258 default "4" if ARCH_LH7A40X
1259 default "2"
1260 depends on NEED_MULTIPLE_NODES
1261
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001262config HIGHMEM
1263 bool "High Memory Support (EXPERIMENTAL)"
1264 depends on MMU && EXPERIMENTAL
1265 help
1266 The address space of ARM processors is only 4 Gigabytes large
1267 and it has to accommodate user address space, kernel address
1268 space as well as some memory mapped IO. That means that, if you
1269 have a large amount of physical memory and/or IO, not all of the
1270 memory can be "permanently mapped" by the kernel. The physical
1271 memory that is not permanently mapped is called "high memory".
1272
1273 Depending on the selected kernel/user memory split, minimum
1274 vmalloc space and actual amount of RAM, you may not need this
1275 option which should result in a slightly faster kernel.
1276
1277 If unsure, say n.
1278
Russell King65cec8e2009-08-17 20:02:06 +01001279config HIGHPTE
1280 bool "Allocate 2nd-level pagetables from highmem"
1281 depends on HIGHMEM
1282 depends on !OUTER_CACHE
1283
Jamie Iles1b8873a2010-02-02 20:25:44 +01001284config HW_PERF_EVENTS
1285 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001286 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001287 default y
1288 help
1289 Enable hardware performance counter support for perf events. If
1290 disabled, perf events will use software events only.
1291
Dave Hansen3f22ab22005-06-23 00:07:43 -07001292source "mm/Kconfig"
1293
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294config LEDS
1295 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001296 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001297 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1299 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001300 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001301 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001302 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 help
1304 If you say Y here, the LEDs on your machine will be used
1305 to provide useful information about your current system status.
1306
1307 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1308 be able to select which LEDs are active using the options below. If
1309 you are compiling a kernel for the EBSA-110 or the LART however, the
1310 red LED will simply flash regularly to indicate that the system is
1311 still functional. It is safe to say Y here if you have a CATS
1312 system, but the driver will do nothing.
1313
1314config LEDS_TIMER
1315 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001316 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1317 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001319 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 default y if ARCH_EBSA110
1321 help
1322 If you say Y here, one of the system LEDs (the green one on the
1323 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1324 will flash regularly to indicate that the system is still
1325 operational. This is mainly useful to kernel hackers who are
1326 debugging unstable kernels.
1327
1328 The LART uses the same LED for both Timer LED and CPU usage LED
1329 functions. You may choose to use both, but the Timer LED function
1330 will overrule the CPU usage LED.
1331
1332config LEDS_CPU
1333 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001334 !ARCH_OMAP) \
1335 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1336 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337 depends on LEDS
1338 help
1339 If you say Y here, the red LED will be used to give a good real
1340 time indication of CPU usage, by lighting whenever the idle task
1341 is not currently executing.
1342
1343 The LART uses the same LED for both Timer LED and CPU usage LED
1344 functions. You may choose to use both, but the Timer LED function
1345 will overrule the CPU usage LED.
1346
1347config ALIGNMENT_TRAP
1348 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001349 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001351 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001353 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1355 address divisible by 4. On 32-bit ARM processors, these non-aligned
1356 fetch/store instructions will be emulated in software if you say
1357 here, which has a severe performance impact. This is necessary for
1358 correct operation of some network protocols. With an IP-only
1359 configuration it is safe to say N, otherwise say Y.
1360
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001361config UACCESS_WITH_MEMCPY
1362 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1363 depends on MMU && EXPERIMENTAL
1364 default y if CPU_FEROCEON
1365 help
1366 Implement faster copy_to_user and clear_user methods for CPU
1367 cores where a 8-word STM instruction give significantly higher
1368 memory write throughput than a sequence of individual 32bit stores.
1369
1370 A possible side effect is a slight increase in scheduling latency
1371 between threads sharing the same address space if they invoke
1372 such copy operations with large buffers.
1373
1374 However, if the CPU data cache is using a write-allocate mode,
1375 this option is unlikely to provide any performance gain.
1376
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377endmenu
1378
1379menu "Boot options"
1380
1381# Compressed boot loader in ROM. Yes, we really want to ask about
1382# TEXT and BSS so we preserve their values in the config files.
1383config ZBOOT_ROM_TEXT
1384 hex "Compressed ROM boot loader base address"
1385 default "0"
1386 help
1387 The physical address at which the ROM-able zImage is to be
1388 placed in the target. Platforms which normally make use of
1389 ROM-able zImage formats normally set this to a suitable
1390 value in their defconfig file.
1391
1392 If ZBOOT_ROM is not enabled, this has no effect.
1393
1394config ZBOOT_ROM_BSS
1395 hex "Compressed ROM boot loader BSS address"
1396 default "0"
1397 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001398 The base address of an area of read/write memory in the target
1399 for the ROM-able zImage which must be available while the
1400 decompressor is running. It must be large enough to hold the
1401 entire decompressed kernel plus an additional 128 KiB.
1402 Platforms which normally make use of ROM-able zImage formats
1403 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404
1405 If ZBOOT_ROM is not enabled, this has no effect.
1406
1407config ZBOOT_ROM
1408 bool "Compressed boot loader in ROM/flash"
1409 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1410 help
1411 Say Y here if you intend to execute your compressed kernel image
1412 (zImage) directly from ROM or flash. If unsure, say N.
1413
1414config CMDLINE
1415 string "Default kernel command string"
1416 default ""
1417 help
1418 On some architectures (EBSA110 and CATS), there is currently no way
1419 for the boot loader to pass arguments to the kernel. For these
1420 architectures, you should supply some command-line options at build
1421 time by entering them here. As a minimum, you should specify the
1422 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1423
1424config XIP_KERNEL
1425 bool "Kernel Execute-In-Place from ROM"
1426 depends on !ZBOOT_ROM
1427 help
1428 Execute-In-Place allows the kernel to run from non-volatile storage
1429 directly addressable by the CPU, such as NOR flash. This saves RAM
1430 space since the text section of the kernel is not loaded from flash
1431 to RAM. Read-write sections, such as the data section and stack,
1432 are still copied to RAM. The XIP kernel is not compressed since
1433 it has to run directly from flash, so it will take more space to
1434 store it. The flash address used to link the kernel object files,
1435 and for storing it, is configuration dependent. Therefore, if you
1436 say Y here, you must know the proper physical address where to
1437 store the kernel image depending on your own flash memory usage.
1438
1439 Also note that the make target becomes "make xipImage" rather than
1440 "make zImage" or "make Image". The final kernel binary to put in
1441 ROM memory will be arch/arm/boot/xipImage.
1442
1443 If unsure, say N.
1444
1445config XIP_PHYS_ADDR
1446 hex "XIP Kernel Physical Location"
1447 depends on XIP_KERNEL
1448 default "0x00080000"
1449 help
1450 This is the physical address in your flash memory the kernel will
1451 be linked for and stored to. This address is dependent on your
1452 own flash usage.
1453
Richard Purdiec587e4a2007-02-06 21:29:00 +01001454config KEXEC
1455 bool "Kexec system call (EXPERIMENTAL)"
1456 depends on EXPERIMENTAL
1457 help
1458 kexec is a system call that implements the ability to shutdown your
1459 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001460 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001461 you can start any kernel with it, not just Linux.
1462
1463 It is an ongoing process to be certain the hardware in a machine
1464 is properly shutdown, so do not be surprised if this code does not
1465 initially work for you. It may help to enable device hotplugging
1466 support.
1467
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001468config ATAGS_PROC
1469 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001470 depends on KEXEC
1471 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001472 help
1473 Should the atags used to boot the kernel be exported in an "atags"
1474 file in procfs. Useful with kexec.
1475
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476endmenu
1477
Russell Kingac9d7ef2008-08-18 17:26:00 +01001478menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479
Ben Dooks89c52ed2009-07-30 23:23:24 +01001480if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481
1482source "drivers/cpufreq/Kconfig"
1483
1484config CPU_FREQ_SA1100
1485 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
1487config CPU_FREQ_SA1110
1488 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489
1490config CPU_FREQ_INTEGRATOR
1491 tristate "CPUfreq driver for ARM Integrator CPUs"
1492 depends on ARCH_INTEGRATOR && CPU_FREQ
1493 default y
1494 help
1495 This enables the CPUfreq driver for ARM Integrator CPUs.
1496
1497 For details, take a look at <file:Documentation/cpu-freq>.
1498
1499 If in doubt, say Y.
1500
Russell King9e2697f2007-12-14 13:30:14 +00001501config CPU_FREQ_PXA
1502 bool
1503 depends on CPU_FREQ && ARCH_PXA && PXA25x
1504 default y
1505 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1506
Mark Brownb3748dd2009-06-15 11:23:20 +01001507config CPU_FREQ_S3C64XX
1508 bool "CPUfreq support for Samsung S3C64XX CPUs"
1509 depends on CPU_FREQ && CPU_S3C6410
1510
Ben Dooks9d56c022009-07-30 23:23:25 +01001511config CPU_FREQ_S3C
1512 bool
1513 help
1514 Internal configuration node for common cpufreq on Samsung SoC
1515
1516config CPU_FREQ_S3C24XX
1517 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1518 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1519 select CPU_FREQ_S3C
1520 help
1521 This enables the CPUfreq driver for the Samsung S3C24XX family
1522 of CPUs.
1523
1524 For details, take a look at <file:Documentation/cpu-freq>.
1525
1526 If in doubt, say N.
1527
1528config CPU_FREQ_S3C24XX_PLL
1529 bool "Support CPUfreq changing of PLL frequency"
1530 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1531 help
1532 Compile in support for changing the PLL frequency from the
1533 S3C24XX series CPUfreq driver. The PLL takes time to settle
1534 after a frequency change, so by default it is not enabled.
1535
1536 This also means that the PLL tables for the selected CPU(s) will
1537 be built which may increase the size of the kernel image.
1538
1539config CPU_FREQ_S3C24XX_DEBUG
1540 bool "Debug CPUfreq Samsung driver core"
1541 depends on CPU_FREQ_S3C24XX
1542 help
1543 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1544
1545config CPU_FREQ_S3C24XX_IODEBUG
1546 bool "Debug CPUfreq Samsung driver IO timing"
1547 depends on CPU_FREQ_S3C24XX
1548 help
1549 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1550
Ben Dookse6d197a2009-07-30 23:23:42 +01001551config CPU_FREQ_S3C24XX_DEBUGFS
1552 bool "Export debugfs for CPUFreq"
1553 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1554 help
1555 Export status information via debugfs.
1556
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557endif
1558
Russell Kingac9d7ef2008-08-18 17:26:00 +01001559source "drivers/cpuidle/Kconfig"
1560
1561endmenu
1562
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563menu "Floating point emulation"
1564
1565comment "At least one emulation must be selected"
1566
1567config FPE_NWFPE
1568 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001569 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570 ---help---
1571 Say Y to include the NWFPE floating point emulator in the kernel.
1572 This is necessary to run most binaries. Linux does not currently
1573 support floating point hardware so you need to say Y here even if
1574 your machine has an FPA or floating point co-processor podule.
1575
1576 You may say N here if you are going to load the Acorn FPEmulator
1577 early in the bootup.
1578
1579config FPE_NWFPE_XP
1580 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001581 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582 help
1583 Say Y to include 80-bit support in the kernel floating-point
1584 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1585 Note that gcc does not generate 80-bit operations by default,
1586 so in most cases this option only enlarges the size of the
1587 floating point emulator without any good reason.
1588
1589 You almost surely want to say N here.
1590
1591config FPE_FASTFPE
1592 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001593 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594 ---help---
1595 Say Y here to include the FAST floating point emulator in the kernel.
1596 This is an experimental much faster emulator which now also has full
1597 precision for the mantissa. It does not support any exceptions.
1598 It is very simple, and approximately 3-6 times faster than NWFPE.
1599
1600 It should be sufficient for most programs. It may be not suitable
1601 for scientific calculations, but you have to check this for yourself.
1602 If you do not feel you need a faster FP emulation you should better
1603 choose NWFPE.
1604
1605config VFP
1606 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001607 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608 help
1609 Say Y to include VFP support code in the kernel. This is needed
1610 if your hardware includes a VFP unit.
1611
1612 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1613 release notes and additional status information.
1614
1615 Say N if your target does not have VFP hardware.
1616
Catalin Marinas25ebee02007-09-25 15:22:24 +01001617config VFPv3
1618 bool
1619 depends on VFP
1620 default y if CPU_V7
1621
Catalin Marinasb5872db2008-01-10 19:16:17 +01001622config NEON
1623 bool "Advanced SIMD (NEON) Extension support"
1624 depends on VFPv3 && CPU_V7
1625 help
1626 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1627 Extension.
1628
Linus Torvalds1da177e2005-04-16 15:20:36 -07001629endmenu
1630
1631menu "Userspace binary formats"
1632
1633source "fs/Kconfig.binfmt"
1634
1635config ARTHUR
1636 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001637 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638 help
1639 Say Y here to include the kernel code necessary if you want to run
1640 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1641 experimental; if this sounds frightening, say N and sleep in peace.
1642 You can also say M here to compile this support as a module (which
1643 will be called arthur).
1644
1645endmenu
1646
1647menu "Power management options"
1648
Russell Kingeceab4a2005-11-15 11:31:41 +00001649source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650
Johannes Bergf4cb5702007-12-08 02:14:00 +01001651config ARCH_SUSPEND_POSSIBLE
1652 def_bool y
1653
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654endmenu
1655
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001656source "net/Kconfig"
1657
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001658source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659
1660source "fs/Kconfig"
1661
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662source "arch/arm/Kconfig.debug"
1663
1664source "security/Kconfig"
1665
1666source "crypto/Kconfig"
1667
1668source "lib/Kconfig"