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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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221choice
222 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000223 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100225config ARCH_AAEC2000
226 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000227 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700229 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100230 help
231 This enables support for systems based on the Agilent AAEC-2000
232
233config ARCH_INTEGRATOR
234 bool "ARM Ltd. Integrator family"
235 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100236 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700237 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000238 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100239 select ICST525
240 help
241 Support for ARM's Integrator platform.
242
243config ARCH_REALVIEW
244 bool "ARM Ltd. RealView family"
245 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700246 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000247 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100248 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100249 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100250 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100251 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100252 help
253 This enables support for ARM Ltd RealView boards.
254
255config ARCH_VERSATILE
256 bool "ARM Ltd. Versatile family"
257 select ARM_AMBA
258 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700259 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000260 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100262 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100263 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100264 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 help
266 This enables support for ARM Ltd Versatile board.
267
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100268config ARCH_AT91
269 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800270 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100271 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700272 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100274 This enables support for systems based on the Atmel AT91RM9200,
275 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100278 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000279 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000280 help
281 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282
Russell King788c9702009-04-26 14:21:59 +0100283config ARCH_GEMINI
284 bool "Cortina Systems Gemini"
285 select CPU_FA526
286 select GENERIC_GPIO
287 select ARCH_REQUIRE_GPIOLIB
288 help
289 Support for the Cortina Systems Gemini family SoCs
290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291config ARCH_EBSA110
292 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000293 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100294 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000295 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 help
297 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000298 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 Ethernet interface, two PCMCIA sockets, two serial ports and a
300 parallel port.
301
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000302config ARCH_EP93XX
303 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000304 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000305 select ARM_AMBA
306 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100307 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700308 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000309 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700310 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100311 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000312 help
313 This enables support for the Cirrus EP93xx series of CPUs.
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315config ARCH_FOOTBRIDGE
316 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000317 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000319 help
320 Support for systems based on the DC21285 companion chip
321 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322
Russell King788c9702009-04-26 14:21:59 +0100323config ARCH_MXC
324 bool "Freescale MXC/iMX-based"
325 select GENERIC_TIME
326 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100327 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100328 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100329 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100330 help
331 Support for Freescale MXC/iMX-based family of processors
332
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100333config ARCH_STMP3XXX
334 bool "Freescale STMP3xxx"
335 select CPU_ARM926T
336 select HAVE_CLK
337 select COMMON_CLKDEV
338 select ARCH_REQUIRE_GPIOLIB
339 select GENERIC_TIME
340 select GENERIC_CLOCKEVENTS
341 select GENERIC_GPIO
342 select USB_ARCH_HAS_EHCI
343 help
344 Support for systems based on the Freescale 3xxx CPUs.
345
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100346config ARCH_NETX
347 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000348 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100349 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100350 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100351 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000352 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100353 This enables support for systems based on the Hilscher NetX Soc
354
355config ARCH_H720X
356 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000357 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358 select ISA_DMA_API
359 help
360 This enables support for systems based on the Hynix HMS720x
361
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100362config ARCH_NOMADIK
363 bool "STMicroelectronics Nomadik"
364 select ARM_AMBA
365 select ARM_VIC
366 select CPU_ARM926T
367 select HAVE_CLK
368 select COMMON_CLKDEV
369 select GENERIC_TIME
370 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100371 select GENERIC_GPIO
372 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100373 help
374 Support for the Nomadik platform by ST-Ericsson
375
Russell King3b938be2007-05-12 11:25:44 +0100376config ARCH_IOP13XX
377 bool "IOP13xx-based"
378 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000379 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100380 select PLAT_IOP
381 select PCI
382 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100383 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100384 help
385 Support for Intel's IOP13XX (XScale) family of processors.
386
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100387config ARCH_IOP32X
388 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100389 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000390 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100391 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100392 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100393 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100394 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000395 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100396 Support for Intel's 80219 and IOP32X (XScale) family of
397 processors.
398
399config ARCH_IOP33X
400 bool "IOP33x-based"
401 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000402 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100403 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100404 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100405 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100406 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407 help
408 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409
Russell King3b938be2007-05-12 11:25:44 +0100410config ARCH_IXP23XX
411 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100412 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000413 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100414 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100415 help
Russell King3b938be2007-05-12 11:25:44 +0100416 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417
418config ARCH_IXP2000
419 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100420 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000421 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100422 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000423 help
424 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Russell King3b938be2007-05-12 11:25:44 +0100426config ARCH_IXP4XX
427 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100428 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000429 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100430 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100431 select GENERIC_TIME
432 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100433 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100434 help
Russell King3b938be2007-05-12 11:25:44 +0100435 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100436
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437config ARCH_L7200
438 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000439 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 select FIQ
441 help
442 Say Y here if you intend to run this kernel on a LinkUp Systems
443 L7200 Software Development Board which uses an ARM720T processor.
444 Information on this board can be obtained at:
445
446 <http://www.linkupsys.com/>
447
448 If you have any questions or comments about the Linux kernel port
449 to this board, send e-mail to <sjhill@cotw.com>.
450
Saeed Bisharaedabd382009-08-06 15:12:43 +0300451config ARCH_DOVE
452 bool "Marvell Dove"
453 select PCI
454 select GENERIC_GPIO
455 select ARCH_REQUIRE_GPIOLIB
456 select GENERIC_TIME
457 select GENERIC_CLOCKEVENTS
458 select PLAT_ORION
459 help
460 Support for the Marvell Dove SoC 88AP510
461
Saeed Bishara651c74c2008-06-22 22:45:06 +0200462config ARCH_KIRKWOOD
463 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000464 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200465 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200466 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700467 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200468 select GENERIC_TIME
469 select GENERIC_CLOCKEVENTS
470 select PLAT_ORION
471 help
472 Support for the following Marvell Kirkwood series SoCs:
473 88F6180, 88F6192 and 88F6281.
474
Russell King788c9702009-04-26 14:21:59 +0100475config ARCH_LOKI
476 bool "Marvell Loki (88RC8480)"
477 select CPU_FEROCEON
478 select GENERIC_TIME
479 select GENERIC_CLOCKEVENTS
480 select PLAT_ORION
481 help
482 Support for the Marvell Loki (88RC8480) SoC.
483
484config ARCH_MV78XX0
485 bool "Marvell MV78xx0"
486 select CPU_FEROCEON
487 select PCI
488 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700489 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100490 select GENERIC_TIME
491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the following Marvell MV78xx0 series SoCs:
495 MV781x0, MV782x0.
496
497config ARCH_ORION5X
498 bool "Marvell Orion"
499 depends on MMU
500 select CPU_FEROCEON
501 select PCI
502 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700503 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100504 select GENERIC_TIME
505 select GENERIC_CLOCKEVENTS
506 select PLAT_ORION
507 help
508 Support for the following Marvell Orion 5x series SoCs:
509 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
510 Orion-2 (5281), Orion-1-90 (6183).
511
512config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500513 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100514 depends on MMU
515 select GENERIC_GPIO
516 select ARCH_REQUIRE_GPIOLIB
517 select HAVE_CLK
518 select COMMON_CLKDEV
519 select GENERIC_TIME
520 select GENERIC_CLOCKEVENTS
521 select TICK_ONESHOT
522 select PLAT_PXA
523 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500524 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100525
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100526config ARCH_KS8695
527 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000528 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100529 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000530 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100531 help
532 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
533 System-on-Chip devices.
534
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100535config ARCH_NS9XXX
536 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000537 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100538 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100539 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100540 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700541 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100542 help
543 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
544 System.
545
546 <http://www.digi.com/products/microprocessors/index.jsp>
547
Russell King788c9702009-04-26 14:21:59 +0100548config ARCH_W90X900
549 bool "Nuvoton W90X900 CPU"
550 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100551 select ARCH_REQUIRE_GPIOLIB
552 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100553 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100554 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100555 select GENERIC_TIME
556 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200557 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100558 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
559 At present, the w90x900 has been renamed nuc900, regarding
560 the ARM series product line, you can login the following
561 link address to know more.
562
563 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
564 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400565
wanzongshuna62e9032009-12-31 15:06:05 +0100566config ARCH_NUC93X
567 bool "Nuvoton NUC93X CPU"
568 select CPU_ARM926T
569 select HAVE_CLK
570 select COMMON_CLKDEV
571 help
572 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
573 low-power and high performance MPEG-4/JPEG multimedia controller chip.
574
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100575config ARCH_PNX4008
576 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000577 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700578 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000579 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100580 help
581 This enables support for Philips PNX4008 mobile platform.
582
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700584 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100585 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500586 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100587 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800588 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700589 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000590 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700591 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100592 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100593 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000594 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800595 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000596 help
eric miao2c8086a2007-09-11 19:13:17 -0700597 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598
Russell King788c9702009-04-26 14:21:59 +0100599config ARCH_MSM
600 bool "Qualcomm MSM"
601 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800602 select GENERIC_TIME
603 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800604 help
Russell King788c9702009-04-26 14:21:59 +0100605 Support for Qualcomm MSM7K based systems. This runs on the ARM11
606 apps processor of the MSM7K and depends on a shared memory
607 interface to the ARM9 modem processor which runs the baseband stack
608 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800609
Magnus Dammc793c1b2010-02-05 11:14:49 +0000610config ARCH_SHMOBILE
611 bool "Renesas SH-Mobile"
612 help
613 Support for Renesas's SH-Mobile ARM platforms
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615config ARCH_RPC
616 bool "RiscPC"
617 select ARCH_ACORN
618 select FIQ
619 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100620 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100621 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000622 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000623 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100624 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 help
626 On the Acorn Risc-PC, Linux can support the internal IDE disk and
627 CD-ROM interface, serial and parallel port, and the floppy drive.
628
629config ARCH_SA1100
630 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000631 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100632 select ISA
Russell King05944d72006-11-30 20:43:51 +0000633 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500634 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100635 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000636 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800637 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000638 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100639 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700640 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100641 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700642 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000643 help
644 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645
646config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100647 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800648 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100649 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700650 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 help
652 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
653 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000654 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
Ben Dooksa08ab632008-10-21 14:06:39 +0100656config ARCH_S3C64XX
657 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000658 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900659 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100660 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900661 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100662 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900663 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100664 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900665 select ARCH_REQUIRE_GPIOLIB
666 select SAMSUNG_CLKSRC
667 select SAMSUNG_IRQ_VIC_TIMER
668 select SAMSUNG_IRQ_UART
669 select S3C_GPIO_TRACK
670 select S3C_GPIO_PULL_UPDOWN
671 select S3C_GPIO_CFG_S3C24XX
672 select S3C_GPIO_CFG_S3C64XX
673 select S3C_DEV_NAND
674 select USB_ARCH_HAS_OHCI
675 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100676 help
677 Samsung S3C64XX series based systems
678
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900679config ARCH_S5P6440
680 bool "Samsung S5P6440"
681 select CPU_V6
682 select GENERIC_GPIO
683 select HAVE_CLK
684 help
685 Samsung S5P6440 CPU based systems
686
Kukjin Kim550db7f2010-01-29 10:19:26 +0900687config ARCH_S5P6442
688 bool "Samsung S5P6442"
689 select CPU_V6
690 select GENERIC_GPIO
691 select HAVE_CLK
692 help
693 Samsung S5P6442 CPU based systems
694
Byungho Min5a7652f2009-06-23 21:39:42 +0900695config ARCH_S5PC1XX
696 bool "Samsung S5PC1XX"
697 select GENERIC_GPIO
698 select HAVE_CLK
699 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100700 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900701 help
702 Samsung S5PC1XX series based systems
703
Kukjin Kim170f4e42010-02-24 16:40:44 +0900704config ARCH_S5PV210
705 bool "Samsung S5PV210/S5PC110"
706 select CPU_V7
707 select GENERIC_GPIO
708 select HAVE_CLK
709 select ARM_L1_CACHE_SHIFT_6
710 help
711 Samsung S5PV210/S5PC110 series based systems
712
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713config ARCH_SHARK
714 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000715 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100716 select ISA
717 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100718 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100719 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000720 help
721 Support for the StrongARM based Digital DNARD machine, also known
722 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723
724config ARCH_LH7A40X
725 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000726 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100727 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
728 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 help
730 Say Y here for systems based on one of the Sharp LH7A40X
731 System on a Chip processors. These CPUs include an ARM922T
732 core with a wide array of integrated devices for
733 hand-held and low-power applications.
734
Linus Walleijd98aac72009-04-27 10:21:46 +0100735config ARCH_U300
736 bool "ST-Ericsson U300 Series"
737 depends on MMU
738 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100739 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100740 select ARM_AMBA
741 select ARM_VIC
742 select GENERIC_TIME
743 select GENERIC_CLOCKEVENTS
744 select HAVE_CLK
745 select COMMON_CLKDEV
746 select GENERIC_GPIO
747 help
748 Support for ST-Ericsson U300 series mobile platforms.
749
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100750config ARCH_DAVINCI
751 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000752 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100753 select GENERIC_TIME
754 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100755 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700756 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700757 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100758 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700759 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700760 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700761 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530762 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100763 help
764 Support for TI's DaVinci platform.
765
Russell King3b938be2007-05-12 11:25:44 +0100766config ARCH_OMAP
767 bool "TI OMAP"
768 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700769 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700770 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100771 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100772 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700773 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800774 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100775 help
776 Support for TI's OMAP platform (OMAP1 and OMAP2).
777
Leo Chen6288e282009-08-07 19:46:15 +0100778config ARCH_BCMRING
779 bool "Broadcom BCMRING"
780 depends on MMU
781 select CPU_V6
782 select ARM_AMBA
783 select COMMON_CLKDEV
784 select GENERIC_TIME
785 select GENERIC_CLOCKEVENTS
786 select ARCH_WANT_OPTIONAL_GPIOLIB
787 help
788 Support for Broadcom's BCMRing platform.
789
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100790config ARCH_U8500
791 bool "ST-Ericsson U8500 Series"
792 select CPU_V7
793 select ARM_AMBA
794 select GENERIC_TIME
795 select GENERIC_CLOCKEVENTS
796 select COMMON_CLKDEV
797 help
798 Support for ST-Ericsson's Ux500 architecture
799
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800endchoice
801
Russell King95b8f202010-01-14 11:43:54 +0000802source "arch/arm/mach-aaec2000/Kconfig"
803
804source "arch/arm/mach-at91/Kconfig"
805
806source "arch/arm/mach-bcmring/Kconfig"
807
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808source "arch/arm/mach-clps711x/Kconfig"
809
Russell King95b8f202010-01-14 11:43:54 +0000810source "arch/arm/mach-davinci/Kconfig"
811
812source "arch/arm/mach-dove/Kconfig"
813
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000814source "arch/arm/mach-ep93xx/Kconfig"
815
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816source "arch/arm/mach-footbridge/Kconfig"
817
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200818source "arch/arm/mach-gemini/Kconfig"
819
Russell King95b8f202010-01-14 11:43:54 +0000820source "arch/arm/mach-h720x/Kconfig"
821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822source "arch/arm/mach-integrator/Kconfig"
823
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100824source "arch/arm/mach-iop32x/Kconfig"
825
826source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827
Dan Williams285f5fa2006-12-07 02:59:39 +0100828source "arch/arm/mach-iop13xx/Kconfig"
829
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830source "arch/arm/mach-ixp4xx/Kconfig"
831
832source "arch/arm/mach-ixp2000/Kconfig"
833
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100834source "arch/arm/mach-ixp23xx/Kconfig"
835
Russell King95b8f202010-01-14 11:43:54 +0000836source "arch/arm/mach-kirkwood/Kconfig"
837
838source "arch/arm/mach-ks8695/Kconfig"
839
840source "arch/arm/mach-lh7a40x/Kconfig"
841
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200842source "arch/arm/mach-loki/Kconfig"
843
Russell King95b8f202010-01-14 11:43:54 +0000844source "arch/arm/mach-msm/Kconfig"
845
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200846source "arch/arm/mach-mv78xx0/Kconfig"
847
Russell King95b8f202010-01-14 11:43:54 +0000848source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849
Russell King95b8f202010-01-14 11:43:54 +0000850source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800851
Russell King95b8f202010-01-14 11:43:54 +0000852source "arch/arm/mach-nomadik/Kconfig"
853source "arch/arm/plat-nomadik/Kconfig"
854
855source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856
Russell Kingd91a89102010-02-04 18:13:17 +0000857source "arch/arm/mach-nuc93x/Kconfig"
858
Tony Lindgrend48af152005-07-10 19:58:17 +0100859source "arch/arm/plat-omap/Kconfig"
860
861source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862
Tony Lindgren1dbae812005-11-10 14:26:51 +0000863source "arch/arm/mach-omap2/Kconfig"
864
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400865source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400866
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/mach-pxa/Kconfig"
868source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
Russell King95b8f202010-01-14 11:43:54 +0000870source "arch/arm/mach-mmp/Kconfig"
871
872source "arch/arm/mach-realview/Kconfig"
873
874source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300875
Ben Dookscf383672009-11-10 00:14:58 +0000876source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100877source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900878source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900879source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100880
881if ARCH_S3C2410
882source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100884source "arch/arm/mach-s3c2412/Kconfig"
885source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100886source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100887endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888
Ben Dooksa08ab632008-10-21 14:06:39 +0100889if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900890source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100891endif
892
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900893source "arch/arm/mach-s5p6440/Kconfig"
894
Kukjin Kim550db7f2010-01-29 10:19:26 +0900895source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100896
Byungho Min5a7652f2009-06-23 21:39:42 +0900897if ARCH_S5PC1XX
898source "arch/arm/mach-s5pc100/Kconfig"
899endif
900
Kukjin Kim170f4e42010-02-24 16:40:44 +0900901source "arch/arm/mach-s5pv210/Kconfig"
902
Russell King882d01f2010-03-02 23:40:15 +0000903source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904
Russell King882d01f2010-03-02 23:40:15 +0000905source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800906
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100908
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
911source "arch/arm/mach-versatile/Kconfig"
912
wanzongshun7ec80dd2008-12-03 03:55:38 +0100913source "arch/arm/mach-w90x900/Kconfig"
914
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915# Definitions to make life easier
916config ARCH_ACORN
917 bool
918
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100919config PLAT_IOP
920 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700921 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700922 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100923
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400924config PLAT_ORION
925 bool
926
Eric Miaobd5ce432009-01-20 12:06:01 +0800927config PLAT_PXA
928 bool
929
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930source arch/arm/mm/Kconfig
931
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100932config IWMMXT
933 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800934 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
935 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100936 help
937 Enable support for iWMMXt context switching at run time if
938 running on a CPU that supports it.
939
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
941config XSCALE_PMU
942 bool
943 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
944 default y
945
Jamie Iles0f4f0672010-02-02 20:23:15 +0100946config CPU_HAS_PMU
947 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
948 default y
949 bool
950
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100951if !MMU
952source "arch/arm/Kconfig-nommu"
953endif
954
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100955config ARM_ERRATA_411920
956 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
957 depends on CPU_V6 && !SMP
958 help
959 Invalidation of the Instruction Cache operation can
960 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
961 It does not affect the MPCore. This option enables the ARM Ltd.
962 recommended workaround.
963
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100964config ARM_ERRATA_430973
965 bool "ARM errata: Stale prediction on replaced interworking branch"
966 depends on CPU_V7
967 help
968 This option enables the workaround for the 430973 Cortex-A8
969 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
970 interworking branch is replaced with another code sequence at the
971 same virtual address, whether due to self-modifying code or virtual
972 to physical address re-mapping, Cortex-A8 does not recover from the
973 stale interworking branch prediction. This results in Cortex-A8
974 executing the new code sequence in the incorrect ARM or Thumb state.
975 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
976 and also flushes the branch target cache at every context switch.
977 Note that setting specific bits in the ACTLR register may not be
978 available in non-secure mode.
979
Catalin Marinas855c5512009-04-30 17:06:15 +0100980config ARM_ERRATA_458693
981 bool "ARM errata: Processor deadlock when a false hazard is created"
982 depends on CPU_V7
983 help
984 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
985 erratum. For very specific sequences of memory operations, it is
986 possible for a hazard condition intended for a cache line to instead
987 be incorrectly associated with a different cache line. This false
988 hazard might then cause a processor deadlock. The workaround enables
989 the L1 caching of the NEON accesses and disables the PLD instruction
990 in the ACTLR register. Note that setting specific bits in the ACTLR
991 register may not be available in non-secure mode.
992
Catalin Marinas0516e462009-04-30 17:06:20 +0100993config ARM_ERRATA_460075
994 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
995 depends on CPU_V7
996 help
997 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
998 erratum. Any asynchronous access to the L2 cache may encounter a
999 situation in which recent store transactions to the L2 cache are lost
1000 and overwritten with stale memory contents from external memory. The
1001 workaround disables the write-allocate mode for the L2 cache via the
1002 ACTLR register. Note that setting specific bits in the ACTLR register
1003 may not be available in non-secure mode.
1004
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001005config PL310_ERRATA_588369
1006 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1007 depends on CACHE_L2X0 && ARCH_OMAP4
1008 help
1009 The PL310 L2 cache controller implements three types of Clean &
1010 Invalidate maintenance operations: by Physical Address
1011 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1012 They are architecturally defined to behave as the execution of a
1013 clean operation followed immediately by an invalidate operation,
1014 both performing to the same memory location. This functionality
1015 is not correctly implemented in PL310 as clean lines are not
1016 invalidated as a result of these operations. Note that this errata
1017 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018endmenu
1019
1020source "arch/arm/common/Kconfig"
1021
1022config FORCE_MAX_ZONEORDER
1023 int
1024 depends on SA1111
1025 default "9"
1026
1027menu "Bus support"
1028
1029config ARM_AMBA
1030 bool
1031
1032config ISA
1033 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 help
1035 Find out whether you have ISA slots on your motherboard. ISA is the
1036 name of a bus system, i.e. the way the CPU talks to the other stuff
1037 inside your box. Other bus systems are PCI, EISA, MicroChannel
1038 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1039 newer boards don't support it. If you have ISA, say Y, otherwise N.
1040
Russell King065909b2006-01-04 15:44:16 +00001041# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042config ISA_DMA
1043 bool
Russell King065909b2006-01-04 15:44:16 +00001044 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Russell King065909b2006-01-04 15:44:16 +00001046# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001047config ISA_DMA_API
1048 bool
Al Viro5cae8412005-05-04 05:39:22 +01001049
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001051 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052 help
1053 Find out whether you have a PCI motherboard. PCI is the name of a
1054 bus system, i.e. the way the CPU talks to the other stuff inside
1055 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1056 VESA. If you have PCI, say Y, otherwise N.
1057
Matthew Wilcox36e23592007-07-10 10:54:40 -06001058config PCI_SYSCALL
1059 def_bool PCI
1060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061# Select the host bridge type
1062config PCI_HOST_VIA82C505
1063 bool
1064 depends on PCI && ARCH_SHARK
1065 default y
1066
Mike Rapoporta0113a92007-11-25 08:55:34 +01001067config PCI_HOST_ITE8152
1068 bool
1069 depends on PCI && MACH_ARMCORE
1070 default y
1071 select DMABOUNCE
1072
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073source "drivers/pci/Kconfig"
1074
1075source "drivers/pcmcia/Kconfig"
1076
1077endmenu
1078
1079menu "Kernel Features"
1080
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001081source "kernel/time/Kconfig"
1082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083config SMP
1084 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001085 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001086 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001087 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001088 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001089 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 help
1091 This enables support for systems with more than one CPU. If you have
1092 a system with only one CPU, like most personal computers, say N. If
1093 you have a system with more than one CPU, say Y.
1094
1095 If you say N here, the kernel will run on single and multiprocessor
1096 machines, but will use only one CPU of a multiprocessor machine. If
1097 you say Y here, the kernel will run on many, but not all, single
1098 processor machines. On a single processor machine, the kernel will
1099 run faster if you say N here.
1100
Adrian Bunk03502fa2008-02-03 15:50:21 +02001101 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1103 <http://www.linuxdoc.org/docs.html#howto>.
1104
1105 If you don't know what to do here, say N.
1106
Russell Kinga8cbcd92009-05-16 11:51:14 +01001107config HAVE_ARM_SCU
1108 bool
1109 depends on SMP
1110 help
1111 This option enables support for the ARM system coherency unit
1112
Russell Kingf32f4ce2009-05-16 12:14:21 +01001113config HAVE_ARM_TWD
1114 bool
1115 depends on SMP
1116 help
1117 This options enables support for the ARM timer and watchdog unit
1118
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001119choice
1120 prompt "Memory split"
1121 default VMSPLIT_3G
1122 help
1123 Select the desired split between kernel and user memory.
1124
1125 If you are not absolutely sure what you are doing, leave this
1126 option alone!
1127
1128 config VMSPLIT_3G
1129 bool "3G/1G user/kernel split"
1130 config VMSPLIT_2G
1131 bool "2G/2G user/kernel split"
1132 config VMSPLIT_1G
1133 bool "1G/3G user/kernel split"
1134endchoice
1135
1136config PAGE_OFFSET
1137 hex
1138 default 0x40000000 if VMSPLIT_1G
1139 default 0x80000000 if VMSPLIT_2G
1140 default 0xC0000000
1141
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142config NR_CPUS
1143 int "Maximum number of CPUs (2-32)"
1144 range 2 32
1145 depends on SMP
1146 default "4"
1147
Russell Kinga054a812005-11-02 22:24:33 +00001148config HOTPLUG_CPU
1149 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1150 depends on SMP && HOTPLUG && EXPERIMENTAL
1151 help
1152 Say Y here to experiment with turning CPUs off and on. CPUs
1153 can be controlled through /sys/devices/system/cpu.
1154
Russell King37ee16a2005-11-08 19:08:05 +00001155config LOCAL_TIMERS
1156 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001157 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001158 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001159 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001160 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001161 help
1162 Enable support for local timers on SMP platforms, rather then the
1163 legacy IPI broadcast method. Local timers allows the system
1164 accounting to be spread across the timer interval, preventing a
1165 "thundering herd" at every timer tick.
1166
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001167source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168
Russell Kingf8065812006-03-02 22:41:59 +00001169config HZ
1170 int
1171 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001172 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001173 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001174 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001175 default 100
1176
Catalin Marinas16c79652009-07-24 12:33:02 +01001177config THUMB2_KERNEL
1178 bool "Compile the kernel in Thumb-2 mode"
1179 depends on CPU_V7 && EXPERIMENTAL
1180 select AEABI
1181 select ARM_ASM_UNIFIED
1182 help
1183 By enabling this option, the kernel will be compiled in
1184 Thumb-2 mode. A compiler/assembler that understand the unified
1185 ARM-Thumb syntax is needed.
1186
1187 If unsure, say N.
1188
Catalin Marinas0becb082009-07-24 12:32:53 +01001189config ARM_ASM_UNIFIED
1190 bool
1191
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001192config AEABI
1193 bool "Use the ARM EABI to compile the kernel"
1194 help
1195 This option allows for the kernel to be compiled using the latest
1196 ARM ABI (aka EABI). This is only useful if you are using a user
1197 space environment that is also compiled with EABI.
1198
1199 Since there are major incompatibilities between the legacy ABI and
1200 EABI, especially with regard to structure member alignment, this
1201 option also changes the kernel syscall calling convention to
1202 disambiguate both ABIs and allow for backward compatibility support
1203 (selected with CONFIG_OABI_COMPAT).
1204
1205 To use this you need GCC version 4.0.0 or later.
1206
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001207config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001208 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001209 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001210 default y
1211 help
1212 This option preserves the old syscall interface along with the
1213 new (ARM EABI) one. It also provides a compatibility layer to
1214 intercept syscalls that have structure arguments which layout
1215 in memory differs between the legacy ABI and the new ARM EABI
1216 (only for non "thumb" binaries). This option adds a tiny
1217 overhead to all syscalls and produces a slightly larger kernel.
1218 If you know you'll be using only pure EABI user space then you
1219 can say N here. If this option is not selected and you attempt
1220 to execute a legacy ABI binary then the result will be
1221 UNPREDICTABLE (in fact it can be predicted that it won't work
1222 at all). If in doubt say Y.
1223
Mel Gormaneb335752009-05-13 17:34:48 +01001224config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001225 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001226
Russell King07a2f732008-10-01 21:39:58 +01001227# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001228config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001230
Russell King05944d72006-11-30 20:43:51 +00001231config ARCH_SPARSEMEM_ENABLE
1232 bool
1233
Russell King07a2f732008-10-01 21:39:58 +01001234config ARCH_SPARSEMEM_DEFAULT
1235 def_bool ARCH_SPARSEMEM_ENABLE
1236
Russell King05944d72006-11-30 20:43:51 +00001237config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001238 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001239
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001240config NODES_SHIFT
1241 int
1242 default "4" if ARCH_LH7A40X
1243 default "2"
1244 depends on NEED_MULTIPLE_NODES
1245
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001246config HIGHMEM
1247 bool "High Memory Support (EXPERIMENTAL)"
1248 depends on MMU && EXPERIMENTAL
1249 help
1250 The address space of ARM processors is only 4 Gigabytes large
1251 and it has to accommodate user address space, kernel address
1252 space as well as some memory mapped IO. That means that, if you
1253 have a large amount of physical memory and/or IO, not all of the
1254 memory can be "permanently mapped" by the kernel. The physical
1255 memory that is not permanently mapped is called "high memory".
1256
1257 Depending on the selected kernel/user memory split, minimum
1258 vmalloc space and actual amount of RAM, you may not need this
1259 option which should result in a slightly faster kernel.
1260
1261 If unsure, say n.
1262
Russell King65cec8e2009-08-17 20:02:06 +01001263config HIGHPTE
1264 bool "Allocate 2nd-level pagetables from highmem"
1265 depends on HIGHMEM
1266 depends on !OUTER_CACHE
1267
Jamie Iles1b8873a2010-02-02 20:25:44 +01001268config HW_PERF_EVENTS
1269 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001270 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001271 default y
1272 help
1273 Enable hardware performance counter support for perf events. If
1274 disabled, perf events will use software events only.
1275
Dave Hansen3f22ab22005-06-23 00:07:43 -07001276source "mm/Kconfig"
1277
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278config LEDS
1279 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001280 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001281 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1283 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001284 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001285 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001286 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287 help
1288 If you say Y here, the LEDs on your machine will be used
1289 to provide useful information about your current system status.
1290
1291 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1292 be able to select which LEDs are active using the options below. If
1293 you are compiling a kernel for the EBSA-110 or the LART however, the
1294 red LED will simply flash regularly to indicate that the system is
1295 still functional. It is safe to say Y here if you have a CATS
1296 system, but the driver will do nothing.
1297
1298config LEDS_TIMER
1299 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001300 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1301 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001303 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304 default y if ARCH_EBSA110
1305 help
1306 If you say Y here, one of the system LEDs (the green one on the
1307 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1308 will flash regularly to indicate that the system is still
1309 operational. This is mainly useful to kernel hackers who are
1310 debugging unstable kernels.
1311
1312 The LART uses the same LED for both Timer LED and CPU usage LED
1313 functions. You may choose to use both, but the Timer LED function
1314 will overrule the CPU usage LED.
1315
1316config LEDS_CPU
1317 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001318 !ARCH_OMAP) \
1319 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1320 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321 depends on LEDS
1322 help
1323 If you say Y here, the red LED will be used to give a good real
1324 time indication of CPU usage, by lighting whenever the idle task
1325 is not currently executing.
1326
1327 The LART uses the same LED for both Timer LED and CPU usage LED
1328 functions. You may choose to use both, but the Timer LED function
1329 will overrule the CPU usage LED.
1330
1331config ALIGNMENT_TRAP
1332 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001333 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001335 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001337 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1339 address divisible by 4. On 32-bit ARM processors, these non-aligned
1340 fetch/store instructions will be emulated in software if you say
1341 here, which has a severe performance impact. This is necessary for
1342 correct operation of some network protocols. With an IP-only
1343 configuration it is safe to say N, otherwise say Y.
1344
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001345config UACCESS_WITH_MEMCPY
1346 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1347 depends on MMU && EXPERIMENTAL
1348 default y if CPU_FEROCEON
1349 help
1350 Implement faster copy_to_user and clear_user methods for CPU
1351 cores where a 8-word STM instruction give significantly higher
1352 memory write throughput than a sequence of individual 32bit stores.
1353
1354 A possible side effect is a slight increase in scheduling latency
1355 between threads sharing the same address space if they invoke
1356 such copy operations with large buffers.
1357
1358 However, if the CPU data cache is using a write-allocate mode,
1359 this option is unlikely to provide any performance gain.
1360
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361endmenu
1362
1363menu "Boot options"
1364
1365# Compressed boot loader in ROM. Yes, we really want to ask about
1366# TEXT and BSS so we preserve their values in the config files.
1367config ZBOOT_ROM_TEXT
1368 hex "Compressed ROM boot loader base address"
1369 default "0"
1370 help
1371 The physical address at which the ROM-able zImage is to be
1372 placed in the target. Platforms which normally make use of
1373 ROM-able zImage formats normally set this to a suitable
1374 value in their defconfig file.
1375
1376 If ZBOOT_ROM is not enabled, this has no effect.
1377
1378config ZBOOT_ROM_BSS
1379 hex "Compressed ROM boot loader BSS address"
1380 default "0"
1381 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001382 The base address of an area of read/write memory in the target
1383 for the ROM-able zImage which must be available while the
1384 decompressor is running. It must be large enough to hold the
1385 entire decompressed kernel plus an additional 128 KiB.
1386 Platforms which normally make use of ROM-able zImage formats
1387 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388
1389 If ZBOOT_ROM is not enabled, this has no effect.
1390
1391config ZBOOT_ROM
1392 bool "Compressed boot loader in ROM/flash"
1393 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1394 help
1395 Say Y here if you intend to execute your compressed kernel image
1396 (zImage) directly from ROM or flash. If unsure, say N.
1397
1398config CMDLINE
1399 string "Default kernel command string"
1400 default ""
1401 help
1402 On some architectures (EBSA110 and CATS), there is currently no way
1403 for the boot loader to pass arguments to the kernel. For these
1404 architectures, you should supply some command-line options at build
1405 time by entering them here. As a minimum, you should specify the
1406 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1407
1408config XIP_KERNEL
1409 bool "Kernel Execute-In-Place from ROM"
1410 depends on !ZBOOT_ROM
1411 help
1412 Execute-In-Place allows the kernel to run from non-volatile storage
1413 directly addressable by the CPU, such as NOR flash. This saves RAM
1414 space since the text section of the kernel is not loaded from flash
1415 to RAM. Read-write sections, such as the data section and stack,
1416 are still copied to RAM. The XIP kernel is not compressed since
1417 it has to run directly from flash, so it will take more space to
1418 store it. The flash address used to link the kernel object files,
1419 and for storing it, is configuration dependent. Therefore, if you
1420 say Y here, you must know the proper physical address where to
1421 store the kernel image depending on your own flash memory usage.
1422
1423 Also note that the make target becomes "make xipImage" rather than
1424 "make zImage" or "make Image". The final kernel binary to put in
1425 ROM memory will be arch/arm/boot/xipImage.
1426
1427 If unsure, say N.
1428
1429config XIP_PHYS_ADDR
1430 hex "XIP Kernel Physical Location"
1431 depends on XIP_KERNEL
1432 default "0x00080000"
1433 help
1434 This is the physical address in your flash memory the kernel will
1435 be linked for and stored to. This address is dependent on your
1436 own flash usage.
1437
Richard Purdiec587e4a2007-02-06 21:29:00 +01001438config KEXEC
1439 bool "Kexec system call (EXPERIMENTAL)"
1440 depends on EXPERIMENTAL
1441 help
1442 kexec is a system call that implements the ability to shutdown your
1443 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001444 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001445 you can start any kernel with it, not just Linux.
1446
1447 It is an ongoing process to be certain the hardware in a machine
1448 is properly shutdown, so do not be surprised if this code does not
1449 initially work for you. It may help to enable device hotplugging
1450 support.
1451
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001452config ATAGS_PROC
1453 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001454 depends on KEXEC
1455 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001456 help
1457 Should the atags used to boot the kernel be exported in an "atags"
1458 file in procfs. Useful with kexec.
1459
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460endmenu
1461
Russell Kingac9d7ef2008-08-18 17:26:00 +01001462menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463
Ben Dooks89c52ed2009-07-30 23:23:24 +01001464if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465
1466source "drivers/cpufreq/Kconfig"
1467
1468config CPU_FREQ_SA1100
1469 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470
1471config CPU_FREQ_SA1110
1472 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
1474config CPU_FREQ_INTEGRATOR
1475 tristate "CPUfreq driver for ARM Integrator CPUs"
1476 depends on ARCH_INTEGRATOR && CPU_FREQ
1477 default y
1478 help
1479 This enables the CPUfreq driver for ARM Integrator CPUs.
1480
1481 For details, take a look at <file:Documentation/cpu-freq>.
1482
1483 If in doubt, say Y.
1484
Russell King9e2697f2007-12-14 13:30:14 +00001485config CPU_FREQ_PXA
1486 bool
1487 depends on CPU_FREQ && ARCH_PXA && PXA25x
1488 default y
1489 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1490
Mark Brownb3748dd2009-06-15 11:23:20 +01001491config CPU_FREQ_S3C64XX
1492 bool "CPUfreq support for Samsung S3C64XX CPUs"
1493 depends on CPU_FREQ && CPU_S3C6410
1494
Ben Dooks9d56c022009-07-30 23:23:25 +01001495config CPU_FREQ_S3C
1496 bool
1497 help
1498 Internal configuration node for common cpufreq on Samsung SoC
1499
1500config CPU_FREQ_S3C24XX
1501 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1502 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1503 select CPU_FREQ_S3C
1504 help
1505 This enables the CPUfreq driver for the Samsung S3C24XX family
1506 of CPUs.
1507
1508 For details, take a look at <file:Documentation/cpu-freq>.
1509
1510 If in doubt, say N.
1511
1512config CPU_FREQ_S3C24XX_PLL
1513 bool "Support CPUfreq changing of PLL frequency"
1514 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1515 help
1516 Compile in support for changing the PLL frequency from the
1517 S3C24XX series CPUfreq driver. The PLL takes time to settle
1518 after a frequency change, so by default it is not enabled.
1519
1520 This also means that the PLL tables for the selected CPU(s) will
1521 be built which may increase the size of the kernel image.
1522
1523config CPU_FREQ_S3C24XX_DEBUG
1524 bool "Debug CPUfreq Samsung driver core"
1525 depends on CPU_FREQ_S3C24XX
1526 help
1527 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1528
1529config CPU_FREQ_S3C24XX_IODEBUG
1530 bool "Debug CPUfreq Samsung driver IO timing"
1531 depends on CPU_FREQ_S3C24XX
1532 help
1533 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1534
Ben Dookse6d197a2009-07-30 23:23:42 +01001535config CPU_FREQ_S3C24XX_DEBUGFS
1536 bool "Export debugfs for CPUFreq"
1537 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1538 help
1539 Export status information via debugfs.
1540
Linus Torvalds1da177e2005-04-16 15:20:36 -07001541endif
1542
Russell Kingac9d7ef2008-08-18 17:26:00 +01001543source "drivers/cpuidle/Kconfig"
1544
1545endmenu
1546
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547menu "Floating point emulation"
1548
1549comment "At least one emulation must be selected"
1550
1551config FPE_NWFPE
1552 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001553 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554 ---help---
1555 Say Y to include the NWFPE floating point emulator in the kernel.
1556 This is necessary to run most binaries. Linux does not currently
1557 support floating point hardware so you need to say Y here even if
1558 your machine has an FPA or floating point co-processor podule.
1559
1560 You may say N here if you are going to load the Acorn FPEmulator
1561 early in the bootup.
1562
1563config FPE_NWFPE_XP
1564 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001565 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566 help
1567 Say Y to include 80-bit support in the kernel floating-point
1568 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1569 Note that gcc does not generate 80-bit operations by default,
1570 so in most cases this option only enlarges the size of the
1571 floating point emulator without any good reason.
1572
1573 You almost surely want to say N here.
1574
1575config FPE_FASTFPE
1576 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001577 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578 ---help---
1579 Say Y here to include the FAST floating point emulator in the kernel.
1580 This is an experimental much faster emulator which now also has full
1581 precision for the mantissa. It does not support any exceptions.
1582 It is very simple, and approximately 3-6 times faster than NWFPE.
1583
1584 It should be sufficient for most programs. It may be not suitable
1585 for scientific calculations, but you have to check this for yourself.
1586 If you do not feel you need a faster FP emulation you should better
1587 choose NWFPE.
1588
1589config VFP
1590 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001591 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592 help
1593 Say Y to include VFP support code in the kernel. This is needed
1594 if your hardware includes a VFP unit.
1595
1596 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1597 release notes and additional status information.
1598
1599 Say N if your target does not have VFP hardware.
1600
Catalin Marinas25ebee02007-09-25 15:22:24 +01001601config VFPv3
1602 bool
1603 depends on VFP
1604 default y if CPU_V7
1605
Catalin Marinasb5872db2008-01-10 19:16:17 +01001606config NEON
1607 bool "Advanced SIMD (NEON) Extension support"
1608 depends on VFPv3 && CPU_V7
1609 help
1610 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1611 Extension.
1612
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613endmenu
1614
1615menu "Userspace binary formats"
1616
1617source "fs/Kconfig.binfmt"
1618
1619config ARTHUR
1620 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001621 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001622 help
1623 Say Y here to include the kernel code necessary if you want to run
1624 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1625 experimental; if this sounds frightening, say N and sleep in peace.
1626 You can also say M here to compile this support as a module (which
1627 will be called arthur).
1628
1629endmenu
1630
1631menu "Power management options"
1632
Russell Kingeceab4a2005-11-15 11:31:41 +00001633source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634
Johannes Bergf4cb5702007-12-08 02:14:00 +01001635config ARCH_SUSPEND_POSSIBLE
1636 def_bool y
1637
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638endmenu
1639
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001640source "net/Kconfig"
1641
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001642source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001643
1644source "fs/Kconfig"
1645
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646source "arch/arm/Kconfig.debug"
1647
1648source "security/Kconfig"
1649
1650source "crypto/Kconfig"
1651
1652source "lib/Kconfig"