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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
Russell Kingc5a0adb2010-01-16 20:16:10 +0000243 select ICST
Russell Kingb9cedda2010-01-15 18:10:33 +0000244 select GENERIC_TIME
Russell King13edd862010-01-15 21:49:23 +0000245 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000246 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 help
248 Support for ARM's Integrator platform.
249
250config ARCH_REALVIEW
251 bool "ARM Ltd. RealView family"
252 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700253 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000254 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000255 select ICST
Catalin Marinas85802af2008-02-04 17:24:54 +0100256 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100257 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100258 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000259 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260 help
261 This enables support for ARM Ltd RealView boards.
262
263config ARCH_VERSATILE
264 bool "ARM Ltd. Versatile family"
265 select ARM_AMBA
266 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700267 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000268 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000269 select ICST
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100270 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100271 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100272 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000273 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100274 help
275 This enables support for ARM Ltd Versatile board.
276
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100277config ARCH_AT91
278 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800279 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100280 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700281 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100282 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100283 This enables support for systems based on the Atmel AT91RM9200,
284 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285
Russell Kingccf50e22010-03-15 19:03:06 +0000286config ARCH_BCMRING
287 bool "Broadcom BCMRING"
288 depends on MMU
289 select CPU_V6
290 select ARM_AMBA
291 select COMMON_CLKDEV
292 select GENERIC_TIME
293 select GENERIC_CLOCKEVENTS
294 select ARCH_WANT_OPTIONAL_GPIOLIB
295 help
296 Support for Broadcom's BCMRing platform.
297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000300 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000301 help
302 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303
Russell King788c9702009-04-26 14:21:59 +0100304config ARCH_GEMINI
305 bool "Cortina Systems Gemini"
306 select CPU_FA526
307 select GENERIC_GPIO
308 select ARCH_REQUIRE_GPIOLIB
309 help
310 Support for the Cortina Systems Gemini family SoCs
311
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312config ARCH_EBSA110
313 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000314 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100315 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000316 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 help
318 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000319 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 Ethernet interface, two PCMCIA sockets, two serial ports and a
321 parallel port.
322
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000323config ARCH_EP93XX
324 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000325 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000326 select ARM_AMBA
327 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100328 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700329 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000330 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700331 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100332 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000333 help
334 This enables support for the Cirrus EP93xx series of CPUs.
335
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336config ARCH_FOOTBRIDGE
337 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000338 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000340 help
341 Support for systems based on the DC21285 companion chip
342 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343
Russell King788c9702009-04-26 14:21:59 +0100344config ARCH_MXC
345 bool "Freescale MXC/iMX-based"
346 select GENERIC_TIME
347 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100348 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100349 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100350 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100351 help
352 Support for Freescale MXC/iMX-based family of processors
353
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100354config ARCH_STMP3XXX
355 bool "Freescale STMP3xxx"
356 select CPU_ARM926T
357 select HAVE_CLK
358 select COMMON_CLKDEV
359 select ARCH_REQUIRE_GPIOLIB
360 select GENERIC_TIME
361 select GENERIC_CLOCKEVENTS
362 select GENERIC_GPIO
363 select USB_ARCH_HAS_EHCI
364 help
365 Support for systems based on the Freescale 3xxx CPUs.
366
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100367config ARCH_NETX
368 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000369 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100371 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100372 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000373 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100374 This enables support for systems based on the Hilscher NetX Soc
375
376config ARCH_H720X
377 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000378 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100379 select ISA_DMA_API
380 help
381 This enables support for systems based on the Hynix HMS720x
382
Russell King3b938be2007-05-12 11:25:44 +0100383config ARCH_IOP13XX
384 bool "IOP13xx-based"
385 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000386 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100387 select PLAT_IOP
388 select PCI
389 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100390 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100391 help
392 Support for Intel's IOP13XX (XScale) family of processors.
393
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100394config ARCH_IOP32X
395 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100396 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000397 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100398 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100399 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100400 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100401 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000402 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100403 Support for Intel's 80219 and IOP32X (XScale) family of
404 processors.
405
406config ARCH_IOP33X
407 bool "IOP33x-based"
408 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000409 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100410 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100411 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100412 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100413 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100414 help
415 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416
Russell King3b938be2007-05-12 11:25:44 +0100417config ARCH_IXP23XX
418 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100419 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000420 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100421 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100422 help
Russell King3b938be2007-05-12 11:25:44 +0100423 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
425config ARCH_IXP2000
426 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100427 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100429 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000430 help
431 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Russell King3b938be2007-05-12 11:25:44 +0100433config ARCH_IXP4XX
434 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100435 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100437 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100438 select GENERIC_TIME
439 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100440 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100441 help
Russell King3b938be2007-05-12 11:25:44 +0100442 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444config ARCH_L7200
445 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000446 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 select FIQ
448 help
449 Say Y here if you intend to run this kernel on a LinkUp Systems
450 L7200 Software Development Board which uses an ARM720T processor.
451 Information on this board can be obtained at:
452
453 <http://www.linkupsys.com/>
454
455 If you have any questions or comments about the Linux kernel port
456 to this board, send e-mail to <sjhill@cotw.com>.
457
Saeed Bisharaedabd382009-08-06 15:12:43 +0300458config ARCH_DOVE
459 bool "Marvell Dove"
460 select PCI
461 select GENERIC_GPIO
462 select ARCH_REQUIRE_GPIOLIB
463 select GENERIC_TIME
464 select GENERIC_CLOCKEVENTS
465 select PLAT_ORION
466 help
467 Support for the Marvell Dove SoC 88AP510
468
Saeed Bishara651c74c2008-06-22 22:45:06 +0200469config ARCH_KIRKWOOD
470 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200472 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200473 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700474 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200475 select GENERIC_TIME
476 select GENERIC_CLOCKEVENTS
477 select PLAT_ORION
478 help
479 Support for the following Marvell Kirkwood series SoCs:
480 88F6180, 88F6192 and 88F6281.
481
Russell King788c9702009-04-26 14:21:59 +0100482config ARCH_LOKI
483 bool "Marvell Loki (88RC8480)"
484 select CPU_FEROCEON
485 select GENERIC_TIME
486 select GENERIC_CLOCKEVENTS
487 select PLAT_ORION
488 help
489 Support for the Marvell Loki (88RC8480) SoC.
490
491config ARCH_MV78XX0
492 bool "Marvell MV78xx0"
493 select CPU_FEROCEON
494 select PCI
495 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700496 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100497 select GENERIC_TIME
498 select GENERIC_CLOCKEVENTS
499 select PLAT_ORION
500 help
501 Support for the following Marvell MV78xx0 series SoCs:
502 MV781x0, MV782x0.
503
504config ARCH_ORION5X
505 bool "Marvell Orion"
506 depends on MMU
507 select CPU_FEROCEON
508 select PCI
509 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700510 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100511 select GENERIC_TIME
512 select GENERIC_CLOCKEVENTS
513 select PLAT_ORION
514 help
515 Support for the following Marvell Orion 5x series SoCs:
516 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
517 Orion-2 (5281), Orion-1-90 (6183).
518
519config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500520 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100521 depends on MMU
522 select GENERIC_GPIO
523 select ARCH_REQUIRE_GPIOLIB
524 select HAVE_CLK
525 select COMMON_CLKDEV
526 select GENERIC_TIME
527 select GENERIC_CLOCKEVENTS
528 select TICK_ONESHOT
529 select PLAT_PXA
530 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500531 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100532
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100533config ARCH_KS8695
534 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100536 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000537 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100538 help
539 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
540 System-on-Chip devices.
541
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100542config ARCH_NS9XXX
543 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000544 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100545 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100546 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100547 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700548 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100549 help
550 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
551 System.
552
553 <http://www.digi.com/products/microprocessors/index.jsp>
554
Russell King788c9702009-04-26 14:21:59 +0100555config ARCH_W90X900
556 bool "Nuvoton W90X900 CPU"
557 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100558 select ARCH_REQUIRE_GPIOLIB
559 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100560 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100561 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100562 select GENERIC_TIME
563 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200564 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100565 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
566 At present, the w90x900 has been renamed nuc900, regarding
567 the ARM series product line, you can login the following
568 link address to know more.
569
570 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
571 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400572
wanzongshuna62e9032009-12-31 15:06:05 +0100573config ARCH_NUC93X
574 bool "Nuvoton NUC93X CPU"
575 select CPU_ARM926T
576 select HAVE_CLK
577 select COMMON_CLKDEV
578 help
579 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
580 low-power and high performance MPEG-4/JPEG multimedia controller chip.
581
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100582config ARCH_PNX4008
583 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000584 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700585 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000586 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100587 help
588 This enables support for Philips PNX4008 mobile platform.
589
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700591 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100592 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500593 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100594 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800595 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700596 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000597 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700598 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100599 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100600 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000601 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800602 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000603 help
eric miao2c8086a2007-09-11 19:13:17 -0700604 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605
Russell King788c9702009-04-26 14:21:59 +0100606config ARCH_MSM
607 bool "Qualcomm MSM"
608 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800609 select GENERIC_TIME
610 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800611 help
Russell King788c9702009-04-26 14:21:59 +0100612 Support for Qualcomm MSM7K based systems. This runs on the ARM11
613 apps processor of the MSM7K and depends on a shared memory
614 interface to the ARM9 modem processor which runs the baseband stack
615 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800616
Magnus Dammc793c1b2010-02-05 11:14:49 +0000617config ARCH_SHMOBILE
618 bool "Renesas SH-Mobile"
619 help
620 Support for Renesas's SH-Mobile ARM platforms
621
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622config ARCH_RPC
623 bool "RiscPC"
624 select ARCH_ACORN
625 select FIQ
626 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100627 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100628 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000629 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000630 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100631 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 help
633 On the Acorn Risc-PC, Linux can support the internal IDE disk and
634 CD-ROM interface, serial and parallel port, and the floppy drive.
635
636config ARCH_SA1100
637 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000638 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100639 select ISA
Russell King05944d72006-11-30 20:43:51 +0000640 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500641 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100642 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000643 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800644 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000645 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100646 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700647 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100648 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700649 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000650 help
651 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652
653config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100654 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800655 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100656 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700657 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 help
659 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
660 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000661 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662
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
691 help
692 Samsung S5P6440 CPU based systems
693
Kukjin Kim550db7f2010-01-29 10:19:26 +0900694config ARCH_S5P6442
695 bool "Samsung S5P6442"
696 select CPU_V6
697 select GENERIC_GPIO
698 select HAVE_CLK
699 help
700 Samsung S5P6442 CPU based systems
701
Byungho Min5a7652f2009-06-23 21:39:42 +0900702config ARCH_S5PC1XX
703 bool "Samsung S5PC1XX"
704 select GENERIC_GPIO
705 select HAVE_CLK
706 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100707 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900708 help
709 Samsung S5PC1XX series based systems
710
Kukjin Kim170f4e42010-02-24 16:40:44 +0900711config ARCH_S5PV210
712 bool "Samsung S5PV210/S5PC110"
713 select CPU_V7
714 select GENERIC_GPIO
715 select HAVE_CLK
716 select ARM_L1_CACHE_SHIFT_6
717 help
718 Samsung S5PV210/S5PC110 series based systems
719
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720config ARCH_SHARK
721 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000722 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100723 select ISA
724 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100725 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100726 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000727 help
728 Support for the StrongARM based Digital DNARD machine, also known
729 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730
731config ARCH_LH7A40X
732 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000733 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100734 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
735 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736 help
737 Say Y here for systems based on one of the Sharp LH7A40X
738 System on a Chip processors. These CPUs include an ARM922T
739 core with a wide array of integrated devices for
740 hand-held and low-power applications.
741
Linus Walleijd98aac72009-04-27 10:21:46 +0100742config ARCH_U300
743 bool "ST-Ericsson U300 Series"
744 depends on MMU
745 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100746 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100747 select ARM_AMBA
748 select ARM_VIC
749 select GENERIC_TIME
750 select GENERIC_CLOCKEVENTS
751 select HAVE_CLK
752 select COMMON_CLKDEV
753 select GENERIC_GPIO
754 help
755 Support for ST-Ericsson U300 series mobile platforms.
756
Russell Kingccf50e22010-03-15 19:03:06 +0000757config ARCH_U8500
758 bool "ST-Ericsson U8500 Series"
759 select CPU_V7
760 select ARM_AMBA
761 select GENERIC_TIME
762 select GENERIC_CLOCKEVENTS
763 select COMMON_CLKDEV
764 help
765 Support for ST-Ericsson's Ux500 architecture
766
767config ARCH_NOMADIK
768 bool "STMicroelectronics Nomadik"
769 select ARM_AMBA
770 select ARM_VIC
771 select CPU_ARM926T
772 select HAVE_CLK
773 select COMMON_CLKDEV
774 select GENERIC_TIME
775 select GENERIC_CLOCKEVENTS
776 select GENERIC_GPIO
777 select ARCH_REQUIRE_GPIOLIB
778 help
779 Support for the Nomadik platform by ST-Ericsson
780
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100781config ARCH_DAVINCI
782 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000783 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100784 select GENERIC_TIME
785 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100786 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700787 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700788 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100789 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700790 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700791 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700792 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530793 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100794 help
795 Support for TI's DaVinci platform.
796
Russell King3b938be2007-05-12 11:25:44 +0100797config ARCH_OMAP
798 bool "TI OMAP"
799 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700800 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700801 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100802 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100803 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700804 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800805 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100806 help
807 Support for TI's OMAP platform (OMAP1 and OMAP2).
808
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809endchoice
810
Russell Kingccf50e22010-03-15 19:03:06 +0000811#
812# This is sorted alphabetically by mach-* pathname. However, plat-*
813# Kconfigs may be included either alphabetically (according to the
814# plat- suffix) or along side the corresponding mach-* source.
815#
Russell King95b8f202010-01-14 11:43:54 +0000816source "arch/arm/mach-aaec2000/Kconfig"
817
818source "arch/arm/mach-at91/Kconfig"
819
820source "arch/arm/mach-bcmring/Kconfig"
821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822source "arch/arm/mach-clps711x/Kconfig"
823
Russell King95b8f202010-01-14 11:43:54 +0000824source "arch/arm/mach-davinci/Kconfig"
825
826source "arch/arm/mach-dove/Kconfig"
827
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000828source "arch/arm/mach-ep93xx/Kconfig"
829
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830source "arch/arm/mach-footbridge/Kconfig"
831
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200832source "arch/arm/mach-gemini/Kconfig"
833
Russell King95b8f202010-01-14 11:43:54 +0000834source "arch/arm/mach-h720x/Kconfig"
835
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836source "arch/arm/mach-integrator/Kconfig"
837
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100838source "arch/arm/mach-iop32x/Kconfig"
839
840source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841
Dan Williams285f5fa2006-12-07 02:59:39 +0100842source "arch/arm/mach-iop13xx/Kconfig"
843
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844source "arch/arm/mach-ixp4xx/Kconfig"
845
846source "arch/arm/mach-ixp2000/Kconfig"
847
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100848source "arch/arm/mach-ixp23xx/Kconfig"
849
Russell King95b8f202010-01-14 11:43:54 +0000850source "arch/arm/mach-kirkwood/Kconfig"
851
852source "arch/arm/mach-ks8695/Kconfig"
853
854source "arch/arm/mach-lh7a40x/Kconfig"
855
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200856source "arch/arm/mach-loki/Kconfig"
857
Russell King95b8f202010-01-14 11:43:54 +0000858source "arch/arm/mach-msm/Kconfig"
859
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200860source "arch/arm/mach-mv78xx0/Kconfig"
861
Russell King95b8f202010-01-14 11:43:54 +0000862source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863
Russell King95b8f202010-01-14 11:43:54 +0000864source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800865
Russell King95b8f202010-01-14 11:43:54 +0000866source "arch/arm/mach-nomadik/Kconfig"
867source "arch/arm/plat-nomadik/Kconfig"
868
869source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
Russell Kingd91a8912010-02-04 18:13:17 +0000871source "arch/arm/mach-nuc93x/Kconfig"
872
Tony Lindgrend48af152005-07-10 19:58:17 +0100873source "arch/arm/plat-omap/Kconfig"
874
875source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876
Tony Lindgren1dbae812005-11-10 14:26:51 +0000877source "arch/arm/mach-omap2/Kconfig"
878
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400879source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400880
Russell King95b8f202010-01-14 11:43:54 +0000881source "arch/arm/mach-pxa/Kconfig"
882source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
Russell King95b8f202010-01-14 11:43:54 +0000884source "arch/arm/mach-mmp/Kconfig"
885
886source "arch/arm/mach-realview/Kconfig"
887
888source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300889
Ben Dookscf383672009-11-10 00:14:58 +0000890source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100891source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900892source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900893source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100894
895if ARCH_S3C2410
896source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100898source "arch/arm/mach-s3c2412/Kconfig"
899source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100900source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100901endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
Ben Dooksa08ab632008-10-21 14:06:39 +0100903if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900904source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100905endif
906
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900907source "arch/arm/mach-s5p6440/Kconfig"
908
Kukjin Kim550db7f2010-01-29 10:19:26 +0900909source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100910
Byungho Min5a7652f2009-06-23 21:39:42 +0900911if ARCH_S5PC1XX
912source "arch/arm/mach-s5pc100/Kconfig"
913endif
914
Kukjin Kim170f4e42010-02-24 16:40:44 +0900915source "arch/arm/mach-s5pv210/Kconfig"
916
Russell King882d01f2010-03-02 23:40:15 +0000917source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Russell King882d01f2010-03-02 23:40:15 +0000919source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800920
Russell King95b8f202010-01-14 11:43:54 +0000921source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100922
Russell King95b8f202010-01-14 11:43:54 +0000923source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924
925source "arch/arm/mach-versatile/Kconfig"
926
wanzongshun7ec80dd2008-12-03 03:55:38 +0100927source "arch/arm/mach-w90x900/Kconfig"
928
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929# Definitions to make life easier
930config ARCH_ACORN
931 bool
932
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100933config PLAT_IOP
934 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700935 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700936 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100937
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400938config PLAT_ORION
939 bool
940
Eric Miaobd5ce432009-01-20 12:06:01 +0800941config PLAT_PXA
942 bool
943
Russell Kingf4b8b312010-01-14 12:48:06 +0000944config PLAT_VERSATILE
945 bool
946
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947source arch/arm/mm/Kconfig
948
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100949config IWMMXT
950 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800951 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
952 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100953 help
954 Enable support for iWMMXt context switching at run time if
955 running on a CPU that supports it.
956
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
958config XSCALE_PMU
959 bool
960 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
961 default y
962
Jamie Iles0f4f0672010-02-02 20:23:15 +0100963config CPU_HAS_PMU
964 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
965 default y
966 bool
967
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100968if !MMU
969source "arch/arm/Kconfig-nommu"
970endif
971
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100972config ARM_ERRATA_411920
973 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
974 depends on CPU_V6 && !SMP
975 help
976 Invalidation of the Instruction Cache operation can
977 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
978 It does not affect the MPCore. This option enables the ARM Ltd.
979 recommended workaround.
980
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100981config ARM_ERRATA_430973
982 bool "ARM errata: Stale prediction on replaced interworking branch"
983 depends on CPU_V7
984 help
985 This option enables the workaround for the 430973 Cortex-A8
986 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
987 interworking branch is replaced with another code sequence at the
988 same virtual address, whether due to self-modifying code or virtual
989 to physical address re-mapping, Cortex-A8 does not recover from the
990 stale interworking branch prediction. This results in Cortex-A8
991 executing the new code sequence in the incorrect ARM or Thumb state.
992 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
993 and also flushes the branch target cache at every context switch.
994 Note that setting specific bits in the ACTLR register may not be
995 available in non-secure mode.
996
Catalin Marinas855c5512009-04-30 17:06:15 +0100997config ARM_ERRATA_458693
998 bool "ARM errata: Processor deadlock when a false hazard is created"
999 depends on CPU_V7
1000 help
1001 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1002 erratum. For very specific sequences of memory operations, it is
1003 possible for a hazard condition intended for a cache line to instead
1004 be incorrectly associated with a different cache line. This false
1005 hazard might then cause a processor deadlock. The workaround enables
1006 the L1 caching of the NEON accesses and disables the PLD instruction
1007 in the ACTLR register. Note that setting specific bits in the ACTLR
1008 register may not be available in non-secure mode.
1009
Catalin Marinas0516e462009-04-30 17:06:20 +01001010config ARM_ERRATA_460075
1011 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1012 depends on CPU_V7
1013 help
1014 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1015 erratum. Any asynchronous access to the L2 cache may encounter a
1016 situation in which recent store transactions to the L2 cache are lost
1017 and overwritten with stale memory contents from external memory. The
1018 workaround disables the write-allocate mode for the L2 cache via the
1019 ACTLR register. Note that setting specific bits in the ACTLR register
1020 may not be available in non-secure mode.
1021
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001022config PL310_ERRATA_588369
1023 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1024 depends on CACHE_L2X0 && ARCH_OMAP4
1025 help
1026 The PL310 L2 cache controller implements three types of Clean &
1027 Invalidate maintenance operations: by Physical Address
1028 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1029 They are architecturally defined to behave as the execution of a
1030 clean operation followed immediately by an invalidate operation,
1031 both performing to the same memory location. This functionality
1032 is not correctly implemented in PL310 as clean lines are not
1033 invalidated as a result of these operations. Note that this errata
1034 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035endmenu
1036
1037source "arch/arm/common/Kconfig"
1038
1039config FORCE_MAX_ZONEORDER
1040 int
1041 depends on SA1111
1042 default "9"
1043
1044menu "Bus support"
1045
1046config ARM_AMBA
1047 bool
1048
1049config ISA
1050 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 help
1052 Find out whether you have ISA slots on your motherboard. ISA is the
1053 name of a bus system, i.e. the way the CPU talks to the other stuff
1054 inside your box. Other bus systems are PCI, EISA, MicroChannel
1055 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1056 newer boards don't support it. If you have ISA, say Y, otherwise N.
1057
Russell King065909b2006-01-04 15:44:16 +00001058# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059config ISA_DMA
1060 bool
Russell King065909b2006-01-04 15:44:16 +00001061 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062
Russell King065909b2006-01-04 15:44:16 +00001063# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001064config ISA_DMA_API
1065 bool
Al Viro5cae8412005-05-04 05:39:22 +01001066
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001068 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 help
1070 Find out whether you have a PCI motherboard. PCI is the name of a
1071 bus system, i.e. the way the CPU talks to the other stuff inside
1072 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1073 VESA. If you have PCI, say Y, otherwise N.
1074
Matthew Wilcox36e23592007-07-10 10:54:40 -06001075config PCI_SYSCALL
1076 def_bool PCI
1077
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078# Select the host bridge type
1079config PCI_HOST_VIA82C505
1080 bool
1081 depends on PCI && ARCH_SHARK
1082 default y
1083
Mike Rapoporta0113a92007-11-25 08:55:34 +01001084config PCI_HOST_ITE8152
1085 bool
1086 depends on PCI && MACH_ARMCORE
1087 default y
1088 select DMABOUNCE
1089
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090source "drivers/pci/Kconfig"
1091
1092source "drivers/pcmcia/Kconfig"
1093
1094endmenu
1095
1096menu "Kernel Features"
1097
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001098source "kernel/time/Kconfig"
1099
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100config SMP
1101 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001102 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001103 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001104 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001105 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001106 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107 help
1108 This enables support for systems with more than one CPU. If you have
1109 a system with only one CPU, like most personal computers, say N. If
1110 you have a system with more than one CPU, say Y.
1111
1112 If you say N here, the kernel will run on single and multiprocessor
1113 machines, but will use only one CPU of a multiprocessor machine. If
1114 you say Y here, the kernel will run on many, but not all, single
1115 processor machines. On a single processor machine, the kernel will
1116 run faster if you say N here.
1117
Adrian Bunk03502fa2008-02-03 15:50:21 +02001118 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1120 <http://www.linuxdoc.org/docs.html#howto>.
1121
1122 If you don't know what to do here, say N.
1123
Russell Kinga8cbcd92009-05-16 11:51:14 +01001124config HAVE_ARM_SCU
1125 bool
1126 depends on SMP
1127 help
1128 This option enables support for the ARM system coherency unit
1129
Russell Kingf32f4ce2009-05-16 12:14:21 +01001130config HAVE_ARM_TWD
1131 bool
1132 depends on SMP
1133 help
1134 This options enables support for the ARM timer and watchdog unit
1135
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001136choice
1137 prompt "Memory split"
1138 default VMSPLIT_3G
1139 help
1140 Select the desired split between kernel and user memory.
1141
1142 If you are not absolutely sure what you are doing, leave this
1143 option alone!
1144
1145 config VMSPLIT_3G
1146 bool "3G/1G user/kernel split"
1147 config VMSPLIT_2G
1148 bool "2G/2G user/kernel split"
1149 config VMSPLIT_1G
1150 bool "1G/3G user/kernel split"
1151endchoice
1152
1153config PAGE_OFFSET
1154 hex
1155 default 0x40000000 if VMSPLIT_1G
1156 default 0x80000000 if VMSPLIT_2G
1157 default 0xC0000000
1158
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159config NR_CPUS
1160 int "Maximum number of CPUs (2-32)"
1161 range 2 32
1162 depends on SMP
1163 default "4"
1164
Russell Kinga054a812005-11-02 22:24:33 +00001165config HOTPLUG_CPU
1166 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1167 depends on SMP && HOTPLUG && EXPERIMENTAL
1168 help
1169 Say Y here to experiment with turning CPUs off and on. CPUs
1170 can be controlled through /sys/devices/system/cpu.
1171
Russell King37ee16a2005-11-08 19:08:05 +00001172config LOCAL_TIMERS
1173 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001174 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001175 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001176 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001177 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001178 help
1179 Enable support for local timers on SMP platforms, rather then the
1180 legacy IPI broadcast method. Local timers allows the system
1181 accounting to be spread across the timer interval, preventing a
1182 "thundering herd" at every timer tick.
1183
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001184source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185
Russell Kingf8065812006-03-02 22:41:59 +00001186config HZ
1187 int
1188 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001189 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001190 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001191 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001192 default 100
1193
Catalin Marinas16c79652009-07-24 12:33:02 +01001194config THUMB2_KERNEL
1195 bool "Compile the kernel in Thumb-2 mode"
1196 depends on CPU_V7 && EXPERIMENTAL
1197 select AEABI
1198 select ARM_ASM_UNIFIED
1199 help
1200 By enabling this option, the kernel will be compiled in
1201 Thumb-2 mode. A compiler/assembler that understand the unified
1202 ARM-Thumb syntax is needed.
1203
1204 If unsure, say N.
1205
Catalin Marinas0becb082009-07-24 12:32:53 +01001206config ARM_ASM_UNIFIED
1207 bool
1208
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001209config AEABI
1210 bool "Use the ARM EABI to compile the kernel"
1211 help
1212 This option allows for the kernel to be compiled using the latest
1213 ARM ABI (aka EABI). This is only useful if you are using a user
1214 space environment that is also compiled with EABI.
1215
1216 Since there are major incompatibilities between the legacy ABI and
1217 EABI, especially with regard to structure member alignment, this
1218 option also changes the kernel syscall calling convention to
1219 disambiguate both ABIs and allow for backward compatibility support
1220 (selected with CONFIG_OABI_COMPAT).
1221
1222 To use this you need GCC version 4.0.0 or later.
1223
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001224config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001225 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001226 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001227 default y
1228 help
1229 This option preserves the old syscall interface along with the
1230 new (ARM EABI) one. It also provides a compatibility layer to
1231 intercept syscalls that have structure arguments which layout
1232 in memory differs between the legacy ABI and the new ARM EABI
1233 (only for non "thumb" binaries). This option adds a tiny
1234 overhead to all syscalls and produces a slightly larger kernel.
1235 If you know you'll be using only pure EABI user space then you
1236 can say N here. If this option is not selected and you attempt
1237 to execute a legacy ABI binary then the result will be
1238 UNPREDICTABLE (in fact it can be predicted that it won't work
1239 at all). If in doubt say Y.
1240
Mel Gormaneb335752009-05-13 17:34:48 +01001241config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001242 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001243
Russell King07a2f732008-10-01 21:39:58 +01001244# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001245config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247
Russell King05944d72006-11-30 20:43:51 +00001248config ARCH_SPARSEMEM_ENABLE
1249 bool
1250
Russell King07a2f732008-10-01 21:39:58 +01001251config ARCH_SPARSEMEM_DEFAULT
1252 def_bool ARCH_SPARSEMEM_ENABLE
1253
Russell King05944d72006-11-30 20:43:51 +00001254config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001255 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001256
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001257config NODES_SHIFT
1258 int
1259 default "4" if ARCH_LH7A40X
1260 default "2"
1261 depends on NEED_MULTIPLE_NODES
1262
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001263config HIGHMEM
1264 bool "High Memory Support (EXPERIMENTAL)"
1265 depends on MMU && EXPERIMENTAL
1266 help
1267 The address space of ARM processors is only 4 Gigabytes large
1268 and it has to accommodate user address space, kernel address
1269 space as well as some memory mapped IO. That means that, if you
1270 have a large amount of physical memory and/or IO, not all of the
1271 memory can be "permanently mapped" by the kernel. The physical
1272 memory that is not permanently mapped is called "high memory".
1273
1274 Depending on the selected kernel/user memory split, minimum
1275 vmalloc space and actual amount of RAM, you may not need this
1276 option which should result in a slightly faster kernel.
1277
1278 If unsure, say n.
1279
Russell King65cec8e2009-08-17 20:02:06 +01001280config HIGHPTE
1281 bool "Allocate 2nd-level pagetables from highmem"
1282 depends on HIGHMEM
1283 depends on !OUTER_CACHE
1284
Jamie Iles1b8873a2010-02-02 20:25:44 +01001285config HW_PERF_EVENTS
1286 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001287 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001288 default y
1289 help
1290 Enable hardware performance counter support for perf events. If
1291 disabled, perf events will use software events only.
1292
Dave Hansen3f22ab22005-06-23 00:07:43 -07001293source "mm/Kconfig"
1294
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295config LEDS
1296 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001297 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001298 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1300 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001301 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001302 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001303 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304 help
1305 If you say Y here, the LEDs on your machine will be used
1306 to provide useful information about your current system status.
1307
1308 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1309 be able to select which LEDs are active using the options below. If
1310 you are compiling a kernel for the EBSA-110 or the LART however, the
1311 red LED will simply flash regularly to indicate that the system is
1312 still functional. It is safe to say Y here if you have a CATS
1313 system, but the driver will do nothing.
1314
1315config LEDS_TIMER
1316 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001317 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1318 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001319 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001320 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321 default y if ARCH_EBSA110
1322 help
1323 If you say Y here, one of the system LEDs (the green one on the
1324 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1325 will flash regularly to indicate that the system is still
1326 operational. This is mainly useful to kernel hackers who are
1327 debugging unstable kernels.
1328
1329 The LART uses the same LED for both Timer LED and CPU usage LED
1330 functions. You may choose to use both, but the Timer LED function
1331 will overrule the CPU usage LED.
1332
1333config LEDS_CPU
1334 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001335 !ARCH_OMAP) \
1336 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1337 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 depends on LEDS
1339 help
1340 If you say Y here, the red LED will be used to give a good real
1341 time indication of CPU usage, by lighting whenever the idle task
1342 is not currently executing.
1343
1344 The LART uses the same LED for both Timer LED and CPU usage LED
1345 functions. You may choose to use both, but the Timer LED function
1346 will overrule the CPU usage LED.
1347
1348config ALIGNMENT_TRAP
1349 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001350 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001352 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001354 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1356 address divisible by 4. On 32-bit ARM processors, these non-aligned
1357 fetch/store instructions will be emulated in software if you say
1358 here, which has a severe performance impact. This is necessary for
1359 correct operation of some network protocols. With an IP-only
1360 configuration it is safe to say N, otherwise say Y.
1361
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001362config UACCESS_WITH_MEMCPY
1363 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1364 depends on MMU && EXPERIMENTAL
1365 default y if CPU_FEROCEON
1366 help
1367 Implement faster copy_to_user and clear_user methods for CPU
1368 cores where a 8-word STM instruction give significantly higher
1369 memory write throughput than a sequence of individual 32bit stores.
1370
1371 A possible side effect is a slight increase in scheduling latency
1372 between threads sharing the same address space if they invoke
1373 such copy operations with large buffers.
1374
1375 However, if the CPU data cache is using a write-allocate mode,
1376 this option is unlikely to provide any performance gain.
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378endmenu
1379
1380menu "Boot options"
1381
1382# Compressed boot loader in ROM. Yes, we really want to ask about
1383# TEXT and BSS so we preserve their values in the config files.
1384config ZBOOT_ROM_TEXT
1385 hex "Compressed ROM boot loader base address"
1386 default "0"
1387 help
1388 The physical address at which the ROM-able zImage is to be
1389 placed in the target. Platforms which normally make use of
1390 ROM-able zImage formats normally set this to a suitable
1391 value in their defconfig file.
1392
1393 If ZBOOT_ROM is not enabled, this has no effect.
1394
1395config ZBOOT_ROM_BSS
1396 hex "Compressed ROM boot loader BSS address"
1397 default "0"
1398 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001399 The base address of an area of read/write memory in the target
1400 for the ROM-able zImage which must be available while the
1401 decompressor is running. It must be large enough to hold the
1402 entire decompressed kernel plus an additional 128 KiB.
1403 Platforms which normally make use of ROM-able zImage formats
1404 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405
1406 If ZBOOT_ROM is not enabled, this has no effect.
1407
1408config ZBOOT_ROM
1409 bool "Compressed boot loader in ROM/flash"
1410 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1411 help
1412 Say Y here if you intend to execute your compressed kernel image
1413 (zImage) directly from ROM or flash. If unsure, say N.
1414
1415config CMDLINE
1416 string "Default kernel command string"
1417 default ""
1418 help
1419 On some architectures (EBSA110 and CATS), there is currently no way
1420 for the boot loader to pass arguments to the kernel. For these
1421 architectures, you should supply some command-line options at build
1422 time by entering them here. As a minimum, you should specify the
1423 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1424
1425config XIP_KERNEL
1426 bool "Kernel Execute-In-Place from ROM"
1427 depends on !ZBOOT_ROM
1428 help
1429 Execute-In-Place allows the kernel to run from non-volatile storage
1430 directly addressable by the CPU, such as NOR flash. This saves RAM
1431 space since the text section of the kernel is not loaded from flash
1432 to RAM. Read-write sections, such as the data section and stack,
1433 are still copied to RAM. The XIP kernel is not compressed since
1434 it has to run directly from flash, so it will take more space to
1435 store it. The flash address used to link the kernel object files,
1436 and for storing it, is configuration dependent. Therefore, if you
1437 say Y here, you must know the proper physical address where to
1438 store the kernel image depending on your own flash memory usage.
1439
1440 Also note that the make target becomes "make xipImage" rather than
1441 "make zImage" or "make Image". The final kernel binary to put in
1442 ROM memory will be arch/arm/boot/xipImage.
1443
1444 If unsure, say N.
1445
1446config XIP_PHYS_ADDR
1447 hex "XIP Kernel Physical Location"
1448 depends on XIP_KERNEL
1449 default "0x00080000"
1450 help
1451 This is the physical address in your flash memory the kernel will
1452 be linked for and stored to. This address is dependent on your
1453 own flash usage.
1454
Richard Purdiec587e4a2007-02-06 21:29:00 +01001455config KEXEC
1456 bool "Kexec system call (EXPERIMENTAL)"
1457 depends on EXPERIMENTAL
1458 help
1459 kexec is a system call that implements the ability to shutdown your
1460 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001461 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001462 you can start any kernel with it, not just Linux.
1463
1464 It is an ongoing process to be certain the hardware in a machine
1465 is properly shutdown, so do not be surprised if this code does not
1466 initially work for you. It may help to enable device hotplugging
1467 support.
1468
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001469config ATAGS_PROC
1470 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001471 depends on KEXEC
1472 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001473 help
1474 Should the atags used to boot the kernel be exported in an "atags"
1475 file in procfs. Useful with kexec.
1476
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477endmenu
1478
Russell Kingac9d7ef2008-08-18 17:26:00 +01001479menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480
Ben Dooks89c52ed2009-07-30 23:23:24 +01001481if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482
1483source "drivers/cpufreq/Kconfig"
1484
1485config CPU_FREQ_SA1100
1486 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487
1488config CPU_FREQ_SA1110
1489 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490
1491config CPU_FREQ_INTEGRATOR
1492 tristate "CPUfreq driver for ARM Integrator CPUs"
1493 depends on ARCH_INTEGRATOR && CPU_FREQ
1494 default y
1495 help
1496 This enables the CPUfreq driver for ARM Integrator CPUs.
1497
1498 For details, take a look at <file:Documentation/cpu-freq>.
1499
1500 If in doubt, say Y.
1501
Russell King9e2697f2007-12-14 13:30:14 +00001502config CPU_FREQ_PXA
1503 bool
1504 depends on CPU_FREQ && ARCH_PXA && PXA25x
1505 default y
1506 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1507
Mark Brownb3748dd2009-06-15 11:23:20 +01001508config CPU_FREQ_S3C64XX
1509 bool "CPUfreq support for Samsung S3C64XX CPUs"
1510 depends on CPU_FREQ && CPU_S3C6410
1511
Ben Dooks9d56c022009-07-30 23:23:25 +01001512config CPU_FREQ_S3C
1513 bool
1514 help
1515 Internal configuration node for common cpufreq on Samsung SoC
1516
1517config CPU_FREQ_S3C24XX
1518 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1519 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1520 select CPU_FREQ_S3C
1521 help
1522 This enables the CPUfreq driver for the Samsung S3C24XX family
1523 of CPUs.
1524
1525 For details, take a look at <file:Documentation/cpu-freq>.
1526
1527 If in doubt, say N.
1528
1529config CPU_FREQ_S3C24XX_PLL
1530 bool "Support CPUfreq changing of PLL frequency"
1531 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1532 help
1533 Compile in support for changing the PLL frequency from the
1534 S3C24XX series CPUfreq driver. The PLL takes time to settle
1535 after a frequency change, so by default it is not enabled.
1536
1537 This also means that the PLL tables for the selected CPU(s) will
1538 be built which may increase the size of the kernel image.
1539
1540config CPU_FREQ_S3C24XX_DEBUG
1541 bool "Debug CPUfreq Samsung driver core"
1542 depends on CPU_FREQ_S3C24XX
1543 help
1544 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1545
1546config CPU_FREQ_S3C24XX_IODEBUG
1547 bool "Debug CPUfreq Samsung driver IO timing"
1548 depends on CPU_FREQ_S3C24XX
1549 help
1550 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1551
Ben Dookse6d197a2009-07-30 23:23:42 +01001552config CPU_FREQ_S3C24XX_DEBUGFS
1553 bool "Export debugfs for CPUFreq"
1554 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1555 help
1556 Export status information via debugfs.
1557
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558endif
1559
Russell Kingac9d7ef2008-08-18 17:26:00 +01001560source "drivers/cpuidle/Kconfig"
1561
1562endmenu
1563
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564menu "Floating point emulation"
1565
1566comment "At least one emulation must be selected"
1567
1568config FPE_NWFPE
1569 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001570 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571 ---help---
1572 Say Y to include the NWFPE floating point emulator in the kernel.
1573 This is necessary to run most binaries. Linux does not currently
1574 support floating point hardware so you need to say Y here even if
1575 your machine has an FPA or floating point co-processor podule.
1576
1577 You may say N here if you are going to load the Acorn FPEmulator
1578 early in the bootup.
1579
1580config FPE_NWFPE_XP
1581 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001582 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001583 help
1584 Say Y to include 80-bit support in the kernel floating-point
1585 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1586 Note that gcc does not generate 80-bit operations by default,
1587 so in most cases this option only enlarges the size of the
1588 floating point emulator without any good reason.
1589
1590 You almost surely want to say N here.
1591
1592config FPE_FASTFPE
1593 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001594 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595 ---help---
1596 Say Y here to include the FAST floating point emulator in the kernel.
1597 This is an experimental much faster emulator which now also has full
1598 precision for the mantissa. It does not support any exceptions.
1599 It is very simple, and approximately 3-6 times faster than NWFPE.
1600
1601 It should be sufficient for most programs. It may be not suitable
1602 for scientific calculations, but you have to check this for yourself.
1603 If you do not feel you need a faster FP emulation you should better
1604 choose NWFPE.
1605
1606config VFP
1607 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001608 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 help
1610 Say Y to include VFP support code in the kernel. This is needed
1611 if your hardware includes a VFP unit.
1612
1613 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1614 release notes and additional status information.
1615
1616 Say N if your target does not have VFP hardware.
1617
Catalin Marinas25ebee02007-09-25 15:22:24 +01001618config VFPv3
1619 bool
1620 depends on VFP
1621 default y if CPU_V7
1622
Catalin Marinasb5872db2008-01-10 19:16:17 +01001623config NEON
1624 bool "Advanced SIMD (NEON) Extension support"
1625 depends on VFPv3 && CPU_V7
1626 help
1627 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1628 Extension.
1629
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630endmenu
1631
1632menu "Userspace binary formats"
1633
1634source "fs/Kconfig.binfmt"
1635
1636config ARTHUR
1637 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001638 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 help
1640 Say Y here to include the kernel code necessary if you want to run
1641 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1642 experimental; if this sounds frightening, say N and sleep in peace.
1643 You can also say M here to compile this support as a module (which
1644 will be called arthur).
1645
1646endmenu
1647
1648menu "Power management options"
1649
Russell Kingeceab4a2005-11-15 11:31:41 +00001650source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001651
Johannes Bergf4cb5702007-12-08 02:14:00 +01001652config ARCH_SUSPEND_POSSIBLE
1653 def_bool y
1654
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655endmenu
1656
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001657source "net/Kconfig"
1658
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001659source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660
1661source "fs/Kconfig"
1662
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663source "arch/arm/Kconfig.debug"
1664
1665source "security/Kconfig"
1666
1667source "crypto/Kconfig"
1668
1669source "lib/Kconfig"