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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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config GENERIC_ISA_DMA
159 bool
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config FIQ
162 bool
163
Al Viro034d2f52005-12-19 16:27:59 -0500164config ARCH_MTD_XIP
165 bool
166
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100167config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100168 def_bool y
169
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100170config ARM_L1_CACHE_SHIFT_6
171 bool
172 help
173 Setting ARM L1 cache line size to 64 Bytes.
174
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500175if OPROFILE
176
177config OPROFILE_ARMV6
178 def_bool y
179 depends on CPU_V6 && !SMP
180 select OPROFILE_ARM11_CORE
181
182config OPROFILE_MPCORE
183 def_bool y
184 depends on CPU_V6 && SMP
185 select OPROFILE_ARM11_CORE
186
187config OPROFILE_ARM11_CORE
188 bool
189
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100190config OPROFILE_ARMV7
191 def_bool y
192 depends on CPU_V7 && !SMP
193 bool
194
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500195endif
196
Hyok S. Choic760fc12006-03-27 15:18:50 +0100197config VECTORS_BASE
198 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900199 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200 default DRAM_BASE if REMAP_VECTORS_TO_RAM
201 default 0x00000000
202 help
203 The base address of exception vectors.
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205source "init/Kconfig"
206
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700207source "kernel/Kconfig.freezer"
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209menu "System Type"
210
Hyok S. Choi3c427972009-07-24 12:35:00 +0100211config MMU
212 bool "MMU-based Paged Memory Management Support"
213 default y
214 help
215 Select if you want MMU-based virtualised addressing space
216 support by paged memory management. If unsure, say 'Y'.
217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218choice
219 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000220 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100222config ARCH_AAEC2000
223 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000224 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100225 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700226 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100227 help
228 This enables support for systems based on the Agilent AAEC-2000
229
230config ARCH_INTEGRATOR
231 bool "ARM Ltd. Integrator family"
232 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100233 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700234 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000235 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236 select ICST525
237 help
238 Support for ARM's Integrator platform.
239
240config ARCH_REALVIEW
241 bool "ARM Ltd. RealView family"
242 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700243 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000244 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100245 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100246 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100247 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100248 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100249 help
250 This enables support for ARM Ltd RealView boards.
251
252config ARCH_VERSATILE
253 bool "ARM Ltd. Versatile family"
254 select ARM_AMBA
255 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700256 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000257 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100258 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100259 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100260 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100261 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100262 help
263 This enables support for ARM Ltd Versatile board.
264
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100265config ARCH_AT91
266 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800267 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100268 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700269 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100270 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100271 This enables support for systems based on the Atmel AT91RM9200,
272 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000276 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000277 help
278 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279
Russell King788c9702009-04-26 14:21:59 +0100280config ARCH_GEMINI
281 bool "Cortina Systems Gemini"
282 select CPU_FA526
283 select GENERIC_GPIO
284 select ARCH_REQUIRE_GPIOLIB
285 help
286 Support for the Cortina Systems Gemini family SoCs
287
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288config ARCH_EBSA110
289 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000290 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100291 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000292 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 help
294 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000295 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 Ethernet interface, two PCMCIA sockets, two serial ports and a
297 parallel port.
298
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000299config ARCH_EP93XX
300 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000301 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000302 select ARM_AMBA
303 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100304 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700305 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000306 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700307 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100308 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000309 help
310 This enables support for the Cirrus EP93xx series of CPUs.
311
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312config ARCH_FOOTBRIDGE
313 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000314 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000316 help
317 Support for systems based on the DC21285 companion chip
318 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Russell King788c9702009-04-26 14:21:59 +0100320config ARCH_MXC
321 bool "Freescale MXC/iMX-based"
322 select GENERIC_TIME
323 select GENERIC_CLOCKEVENTS
324 select ARCH_MTD_XIP
325 select GENERIC_GPIO
326 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100327 select HAVE_CLK
Russell King788c9702009-04-26 14:21:59 +0100328 help
329 Support for Freescale MXC/iMX-based family of processors
330
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100331config ARCH_STMP3XXX
332 bool "Freescale STMP3xxx"
333 select CPU_ARM926T
334 select HAVE_CLK
335 select COMMON_CLKDEV
336 select ARCH_REQUIRE_GPIOLIB
337 select GENERIC_TIME
338 select GENERIC_CLOCKEVENTS
339 select GENERIC_GPIO
340 select USB_ARCH_HAS_EHCI
341 help
342 Support for systems based on the Freescale 3xxx CPUs.
343
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100344config ARCH_NETX
345 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000346 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100347 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100348 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100349 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000350 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100351 This enables support for systems based on the Hilscher NetX Soc
352
353config ARCH_H720X
354 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000355 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100356 select ISA_DMA_API
357 help
358 This enables support for systems based on the Hynix HMS720x
359
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100360config ARCH_NOMADIK
361 bool "STMicroelectronics Nomadik"
362 select ARM_AMBA
363 select ARM_VIC
364 select CPU_ARM926T
365 select HAVE_CLK
366 select COMMON_CLKDEV
367 select GENERIC_TIME
368 select GENERIC_CLOCKEVENTS
Alessandro Rubini2ec1d352009-07-02 15:29:12 +0100369 select GENERIC_GPIO
370 select ARCH_REQUIRE_GPIOLIB
Alessandro Rubini28ad94e2009-07-02 19:06:47 +0100371 help
372 Support for the Nomadik platform by ST-Ericsson
373
Russell King3b938be2007-05-12 11:25:44 +0100374config ARCH_IOP13XX
375 bool "IOP13xx-based"
376 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100378 select PLAT_IOP
379 select PCI
380 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100381 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100382 help
383 Support for Intel's IOP13XX (XScale) family of processors.
384
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100385config ARCH_IOP32X
386 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100387 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100389 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100390 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100391 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100392 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000393 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100394 Support for Intel's 80219 and IOP32X (XScale) family of
395 processors.
396
397config ARCH_IOP33X
398 bool "IOP33x-based"
399 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100401 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100402 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100403 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100404 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100405 help
406 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
Russell King3b938be2007-05-12 11:25:44 +0100408config ARCH_IXP23XX
409 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100410 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000411 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100412 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100413 help
Russell King3b938be2007-05-12 11:25:44 +0100414 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
416config ARCH_IXP2000
417 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100418 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000419 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100420 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000421 help
422 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423
Russell King3b938be2007-05-12 11:25:44 +0100424config ARCH_IXP4XX
425 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100426 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000427 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100428 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100429 select GENERIC_TIME
430 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100431 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100432 help
Russell King3b938be2007-05-12 11:25:44 +0100433 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100434
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435config ARCH_L7200
436 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000437 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 select FIQ
439 help
440 Say Y here if you intend to run this kernel on a LinkUp Systems
441 L7200 Software Development Board which uses an ARM720T processor.
442 Information on this board can be obtained at:
443
444 <http://www.linkupsys.com/>
445
446 If you have any questions or comments about the Linux kernel port
447 to this board, send e-mail to <sjhill@cotw.com>.
448
Saeed Bisharaedabd382009-08-06 15:12:43 +0300449config ARCH_DOVE
450 bool "Marvell Dove"
451 select PCI
452 select GENERIC_GPIO
453 select ARCH_REQUIRE_GPIOLIB
454 select GENERIC_TIME
455 select GENERIC_CLOCKEVENTS
456 select PLAT_ORION
457 help
458 Support for the Marvell Dove SoC 88AP510
459
Saeed Bishara651c74c2008-06-22 22:45:06 +0200460config ARCH_KIRKWOOD
461 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200463 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200464 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700465 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200466 select GENERIC_TIME
467 select GENERIC_CLOCKEVENTS
468 select PLAT_ORION
469 help
470 Support for the following Marvell Kirkwood series SoCs:
471 88F6180, 88F6192 and 88F6281.
472
Russell King788c9702009-04-26 14:21:59 +0100473config ARCH_LOKI
474 bool "Marvell Loki (88RC8480)"
475 select CPU_FEROCEON
476 select GENERIC_TIME
477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the Marvell Loki (88RC8480) SoC.
481
482config ARCH_MV78XX0
483 bool "Marvell MV78xx0"
484 select CPU_FEROCEON
485 select PCI
486 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700487 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100488 select GENERIC_TIME
489 select GENERIC_CLOCKEVENTS
490 select PLAT_ORION
491 help
492 Support for the following Marvell MV78xx0 series SoCs:
493 MV781x0, MV782x0.
494
495config ARCH_ORION5X
496 bool "Marvell Orion"
497 depends on MMU
498 select CPU_FEROCEON
499 select PCI
500 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700501 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100502 select GENERIC_TIME
503 select GENERIC_CLOCKEVENTS
504 select PLAT_ORION
505 help
506 Support for the following Marvell Orion 5x series SoCs:
507 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
508 Orion-2 (5281), Orion-1-90 (6183).
509
510config ARCH_MMP
511 bool "Marvell PXA168/910"
512 depends on MMU
513 select GENERIC_GPIO
514 select ARCH_REQUIRE_GPIOLIB
515 select HAVE_CLK
516 select COMMON_CLKDEV
517 select GENERIC_TIME
518 select GENERIC_CLOCKEVENTS
519 select TICK_ONESHOT
520 select PLAT_PXA
521 help
522 Support for Marvell's PXA168/910 processor line.
523
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100524config ARCH_KS8695
525 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000526 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100527 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000528 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100529 help
530 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
531 System-on-Chip devices.
532
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100533config ARCH_NS9XXX
534 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100536 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100537 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100538 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700539 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100540 help
541 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
542 System.
543
544 <http://www.digi.com/products/microprocessors/index.jsp>
545
Russell King788c9702009-04-26 14:21:59 +0100546config ARCH_W90X900
547 bool "Nuvoton W90X900 CPU"
548 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100549 select ARCH_REQUIRE_GPIOLIB
550 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100551 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100552 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100553 select GENERIC_TIME
554 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200555 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100556 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
557 At present, the w90x900 has been renamed nuc900, regarding
558 the ARM series product line, you can login the following
559 link address to know more.
560
561 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
562 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400563
wanzongshuna62e9032009-12-31 15:06:05 +0100564config ARCH_NUC93X
565 bool "Nuvoton NUC93X CPU"
566 select CPU_ARM926T
567 select HAVE_CLK
568 select COMMON_CLKDEV
569 help
570 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
571 low-power and high performance MPEG-4/JPEG multimedia controller chip.
572
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100573config ARCH_PNX4008
574 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000575 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700576 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000577 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100578 help
579 This enables support for Philips PNX4008 mobile platform.
580
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700582 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100583 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500584 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100585 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800586 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700587 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000588 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700589 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100590 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100591 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000592 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800593 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000594 help
eric miao2c8086a2007-09-11 19:13:17 -0700595 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596
Russell King788c9702009-04-26 14:21:59 +0100597config ARCH_MSM
598 bool "Qualcomm MSM"
599 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800600 select GENERIC_TIME
601 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800602 help
Russell King788c9702009-04-26 14:21:59 +0100603 Support for Qualcomm MSM7K based systems. This runs on the ARM11
604 apps processor of the MSM7K and depends on a shared memory
605 interface to the ARM9 modem processor which runs the baseband stack
606 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800607
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608config ARCH_RPC
609 bool "RiscPC"
610 select ARCH_ACORN
611 select FIQ
612 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100613 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100614 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000615 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000616 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100617 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618 help
619 On the Acorn Risc-PC, Linux can support the internal IDE disk and
620 CD-ROM interface, serial and parallel port, and the floppy drive.
621
622config ARCH_SA1100
623 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000624 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100625 select ISA
Russell King05944d72006-11-30 20:43:51 +0000626 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500627 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100628 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000629 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800630 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000631 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100632 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700633 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100634 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700635 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000636 help
637 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638
639config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100640 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800641 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100642 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700643 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644 help
645 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
646 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000647 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648
Ben Dooksa08ab632008-10-21 14:06:39 +0100649config ARCH_S3C64XX
650 bool "Samsung S3C64XX"
651 select GENERIC_GPIO
652 select HAVE_CLK
Ben Dooks89c52ed2009-07-30 23:23:24 +0100653 select ARCH_HAS_CPUFREQ
Ben Dooksa08ab632008-10-21 14:06:39 +0100654 help
655 Samsung S3C64XX series based systems
656
Byungho Min5a7652f2009-06-23 21:39:42 +0900657config ARCH_S5PC1XX
658 bool "Samsung S5PC1XX"
659 select GENERIC_GPIO
660 select HAVE_CLK
661 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100662 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900663 help
664 Samsung S5PC1XX series based systems
665
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666config ARCH_SHARK
667 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000668 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100669 select ISA
670 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100671 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100672 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000673 help
674 Support for the StrongARM based Digital DNARD machine, also known
675 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676
677config ARCH_LH7A40X
678 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000679 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100680 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
681 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 help
683 Say Y here for systems based on one of the Sharp LH7A40X
684 System on a Chip processors. These CPUs include an ARM922T
685 core with a wide array of integrated devices for
686 hand-held and low-power applications.
687
Linus Walleijd98aac72009-04-27 10:21:46 +0100688config ARCH_U300
689 bool "ST-Ericsson U300 Series"
690 depends on MMU
691 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100692 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100693 select ARM_AMBA
694 select ARM_VIC
695 select GENERIC_TIME
696 select GENERIC_CLOCKEVENTS
697 select HAVE_CLK
698 select COMMON_CLKDEV
699 select GENERIC_GPIO
700 help
701 Support for ST-Ericsson U300 series mobile platforms.
702
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100703config ARCH_DAVINCI
704 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000705 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100706 select GENERIC_TIME
707 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100708 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700709 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700710 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100711 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700712 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700713 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700714 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530715 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100716 help
717 Support for TI's DaVinci platform.
718
Russell King3b938be2007-05-12 11:25:44 +0100719config ARCH_OMAP
720 bool "TI OMAP"
721 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700722 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700723 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100724 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100725 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700726 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800727 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100728 help
729 Support for TI's OMAP platform (OMAP1 and OMAP2).
730
Leo Chen6288e282009-08-07 19:46:15 +0100731config ARCH_BCMRING
732 bool "Broadcom BCMRING"
733 depends on MMU
734 select CPU_V6
735 select ARM_AMBA
736 select COMMON_CLKDEV
737 select GENERIC_TIME
738 select GENERIC_CLOCKEVENTS
739 select ARCH_WANT_OPTIONAL_GPIOLIB
740 help
741 Support for Broadcom's BCMRing platform.
742
Srinidhi Kasagar850265e2009-11-28 08:24:47 +0100743config ARCH_U8500
744 bool "ST-Ericsson U8500 Series"
745 select CPU_V7
746 select ARM_AMBA
747 select GENERIC_TIME
748 select GENERIC_CLOCKEVENTS
749 select COMMON_CLKDEV
750 help
751 Support for ST-Ericsson's Ux500 architecture
752
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753endchoice
754
Russell King95b8f202010-01-14 11:43:54 +0000755source "arch/arm/mach-aaec2000/Kconfig"
756
757source "arch/arm/mach-at91/Kconfig"
758
759source "arch/arm/mach-bcmring/Kconfig"
760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761source "arch/arm/mach-clps711x/Kconfig"
762
Russell King95b8f202010-01-14 11:43:54 +0000763source "arch/arm/mach-davinci/Kconfig"
764
765source "arch/arm/mach-dove/Kconfig"
766
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000767source "arch/arm/mach-ep93xx/Kconfig"
768
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769source "arch/arm/mach-footbridge/Kconfig"
770
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200771source "arch/arm/mach-gemini/Kconfig"
772
Russell King95b8f202010-01-14 11:43:54 +0000773source "arch/arm/mach-h720x/Kconfig"
774
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775source "arch/arm/mach-integrator/Kconfig"
776
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100777source "arch/arm/mach-iop32x/Kconfig"
778
779source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
Dan Williams285f5fa2006-12-07 02:59:39 +0100781source "arch/arm/mach-iop13xx/Kconfig"
782
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783source "arch/arm/mach-ixp4xx/Kconfig"
784
785source "arch/arm/mach-ixp2000/Kconfig"
786
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100787source "arch/arm/mach-ixp23xx/Kconfig"
788
Russell King95b8f202010-01-14 11:43:54 +0000789source "arch/arm/mach-kirkwood/Kconfig"
790
791source "arch/arm/mach-ks8695/Kconfig"
792
793source "arch/arm/mach-lh7a40x/Kconfig"
794
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200795source "arch/arm/mach-loki/Kconfig"
796
Russell King95b8f202010-01-14 11:43:54 +0000797source "arch/arm/mach-msm/Kconfig"
798
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200799source "arch/arm/mach-mv78xx0/Kconfig"
800
Russell King95b8f202010-01-14 11:43:54 +0000801source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802
Russell King95b8f202010-01-14 11:43:54 +0000803source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800804
Russell King95b8f202010-01-14 11:43:54 +0000805source "arch/arm/mach-nomadik/Kconfig"
806source "arch/arm/plat-nomadik/Kconfig"
807
808source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809
Russell Kingd91a8912010-02-04 18:13:17 +0000810source "arch/arm/mach-nuc93x/Kconfig"
811
Tony Lindgrend48af152005-07-10 19:58:17 +0100812source "arch/arm/plat-omap/Kconfig"
813
814source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815
Tony Lindgren1dbae812005-11-10 14:26:51 +0000816source "arch/arm/mach-omap2/Kconfig"
817
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400818source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400819
Russell King95b8f202010-01-14 11:43:54 +0000820source "arch/arm/mach-pxa/Kconfig"
821source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822
Russell King95b8f202010-01-14 11:43:54 +0000823source "arch/arm/mach-mmp/Kconfig"
824
825source "arch/arm/mach-realview/Kconfig"
826
827source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300828
Ben Dookscf383672009-11-10 00:14:58 +0000829source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100830source "arch/arm/plat-s3c24xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100831source "arch/arm/plat-s3c64xx/Kconfig"
Ben Dooksd58153d2007-07-22 16:07:09 +0100832source "arch/arm/plat-s3c/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900833source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100834
835if ARCH_S3C2410
836source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100838source "arch/arm/mach-s3c2412/Kconfig"
839source "arch/arm/mach-s3c2440/Kconfig"
840source "arch/arm/mach-s3c2442/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100841source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100842endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843
Ben Dooksa08ab632008-10-21 14:06:39 +0100844if ARCH_S3C64XX
845source "arch/arm/mach-s3c6400/Kconfig"
846source "arch/arm/mach-s3c6410/Kconfig"
847endif
848
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100849source "arch/arm/plat-stmp3xxx/Kconfig"
850
Byungho Min5a7652f2009-06-23 21:39:42 +0900851if ARCH_S5PC1XX
852source "arch/arm/mach-s5pc100/Kconfig"
853endif
854
Russell King95b8f202010-01-14 11:43:54 +0000855source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856
Russell King95b8f202010-01-14 11:43:54 +0000857source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858
859source "arch/arm/mach-versatile/Kconfig"
860
wanzongshun7ec80dd2008-12-03 03:55:38 +0100861source "arch/arm/mach-w90x900/Kconfig"
862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863# Definitions to make life easier
864config ARCH_ACORN
865 bool
866
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100867config PLAT_IOP
868 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700869 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700870 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100871
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400872config PLAT_ORION
873 bool
874
Eric Miaobd5ce432009-01-20 12:06:01 +0800875config PLAT_PXA
876 bool
877
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878source arch/arm/mm/Kconfig
879
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100880config IWMMXT
881 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800882 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
883 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100884 help
885 Enable support for iWMMXt context switching at run time if
886 running on a CPU that supports it.
887
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
889config XSCALE_PMU
890 bool
891 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
892 default y
893
Jamie Iles0f4f0672010-02-02 20:23:15 +0100894config CPU_HAS_PMU
895 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
896 default y
897 bool
898
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100899if !MMU
900source "arch/arm/Kconfig-nommu"
901endif
902
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100903config ARM_ERRATA_411920
904 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
905 depends on CPU_V6 && !SMP
906 help
907 Invalidation of the Instruction Cache operation can
908 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
909 It does not affect the MPCore. This option enables the ARM Ltd.
910 recommended workaround.
911
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100912config ARM_ERRATA_430973
913 bool "ARM errata: Stale prediction on replaced interworking branch"
914 depends on CPU_V7
915 help
916 This option enables the workaround for the 430973 Cortex-A8
917 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
918 interworking branch is replaced with another code sequence at the
919 same virtual address, whether due to self-modifying code or virtual
920 to physical address re-mapping, Cortex-A8 does not recover from the
921 stale interworking branch prediction. This results in Cortex-A8
922 executing the new code sequence in the incorrect ARM or Thumb state.
923 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
924 and also flushes the branch target cache at every context switch.
925 Note that setting specific bits in the ACTLR register may not be
926 available in non-secure mode.
927
Catalin Marinas855c5512009-04-30 17:06:15 +0100928config ARM_ERRATA_458693
929 bool "ARM errata: Processor deadlock when a false hazard is created"
930 depends on CPU_V7
931 help
932 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
933 erratum. For very specific sequences of memory operations, it is
934 possible for a hazard condition intended for a cache line to instead
935 be incorrectly associated with a different cache line. This false
936 hazard might then cause a processor deadlock. The workaround enables
937 the L1 caching of the NEON accesses and disables the PLD instruction
938 in the ACTLR register. Note that setting specific bits in the ACTLR
939 register may not be available in non-secure mode.
940
Catalin Marinas0516e462009-04-30 17:06:20 +0100941config ARM_ERRATA_460075
942 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
943 depends on CPU_V7
944 help
945 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
946 erratum. Any asynchronous access to the L2 cache may encounter a
947 situation in which recent store transactions to the L2 cache are lost
948 and overwritten with stale memory contents from external memory. The
949 workaround disables the write-allocate mode for the L2 cache via the
950 ACTLR register. Note that setting specific bits in the ACTLR register
951 may not be available in non-secure mode.
952
Santosh Shilimkar9e655822010-02-04 19:42:42 +0100953config PL310_ERRATA_588369
954 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
955 depends on CACHE_L2X0 && ARCH_OMAP4
956 help
957 The PL310 L2 cache controller implements three types of Clean &
958 Invalidate maintenance operations: by Physical Address
959 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
960 They are architecturally defined to behave as the execution of a
961 clean operation followed immediately by an invalidate operation,
962 both performing to the same memory location. This functionality
963 is not correctly implemented in PL310 as clean lines are not
964 invalidated as a result of these operations. Note that this errata
965 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966endmenu
967
968source "arch/arm/common/Kconfig"
969
970config FORCE_MAX_ZONEORDER
971 int
972 depends on SA1111
973 default "9"
974
975menu "Bus support"
976
977config ARM_AMBA
978 bool
979
980config ISA
981 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 help
983 Find out whether you have ISA slots on your motherboard. ISA is the
984 name of a bus system, i.e. the way the CPU talks to the other stuff
985 inside your box. Other bus systems are PCI, EISA, MicroChannel
986 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
987 newer boards don't support it. If you have ISA, say Y, otherwise N.
988
Russell King065909b2006-01-04 15:44:16 +0000989# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990config ISA_DMA
991 bool
Russell King065909b2006-01-04 15:44:16 +0000992 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993
Russell King065909b2006-01-04 15:44:16 +0000994# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +0100995config ISA_DMA_API
996 bool
Al Viro5cae8412005-05-04 05:39:22 +0100997
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +0100999 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 help
1001 Find out whether you have a PCI motherboard. PCI is the name of a
1002 bus system, i.e. the way the CPU talks to the other stuff inside
1003 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1004 VESA. If you have PCI, say Y, otherwise N.
1005
Matthew Wilcox36e23592007-07-10 10:54:40 -06001006config PCI_SYSCALL
1007 def_bool PCI
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009# Select the host bridge type
1010config PCI_HOST_VIA82C505
1011 bool
1012 depends on PCI && ARCH_SHARK
1013 default y
1014
Mike Rapoporta0113a92007-11-25 08:55:34 +01001015config PCI_HOST_ITE8152
1016 bool
1017 depends on PCI && MACH_ARMCORE
1018 default y
1019 select DMABOUNCE
1020
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021source "drivers/pci/Kconfig"
1022
1023source "drivers/pcmcia/Kconfig"
1024
1025endmenu
1026
1027menu "Kernel Features"
1028
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001029source "kernel/time/Kconfig"
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031config SMP
1032 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001033 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001034 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001035 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001036 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001037 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 help
1039 This enables support for systems with more than one CPU. If you have
1040 a system with only one CPU, like most personal computers, say N. If
1041 you have a system with more than one CPU, say Y.
1042
1043 If you say N here, the kernel will run on single and multiprocessor
1044 machines, but will use only one CPU of a multiprocessor machine. If
1045 you say Y here, the kernel will run on many, but not all, single
1046 processor machines. On a single processor machine, the kernel will
1047 run faster if you say N here.
1048
Adrian Bunk03502fa2008-02-03 15:50:21 +02001049 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1051 <http://www.linuxdoc.org/docs.html#howto>.
1052
1053 If you don't know what to do here, say N.
1054
Russell Kinga8cbcd92009-05-16 11:51:14 +01001055config HAVE_ARM_SCU
1056 bool
1057 depends on SMP
1058 help
1059 This option enables support for the ARM system coherency unit
1060
Russell Kingf32f4ce2009-05-16 12:14:21 +01001061config HAVE_ARM_TWD
1062 bool
1063 depends on SMP
1064 help
1065 This options enables support for the ARM timer and watchdog unit
1066
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001067choice
1068 prompt "Memory split"
1069 default VMSPLIT_3G
1070 help
1071 Select the desired split between kernel and user memory.
1072
1073 If you are not absolutely sure what you are doing, leave this
1074 option alone!
1075
1076 config VMSPLIT_3G
1077 bool "3G/1G user/kernel split"
1078 config VMSPLIT_2G
1079 bool "2G/2G user/kernel split"
1080 config VMSPLIT_1G
1081 bool "1G/3G user/kernel split"
1082endchoice
1083
1084config PAGE_OFFSET
1085 hex
1086 default 0x40000000 if VMSPLIT_1G
1087 default 0x80000000 if VMSPLIT_2G
1088 default 0xC0000000
1089
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090config NR_CPUS
1091 int "Maximum number of CPUs (2-32)"
1092 range 2 32
1093 depends on SMP
1094 default "4"
1095
Russell Kinga054a812005-11-02 22:24:33 +00001096config HOTPLUG_CPU
1097 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1098 depends on SMP && HOTPLUG && EXPERIMENTAL
1099 help
1100 Say Y here to experiment with turning CPUs off and on. CPUs
1101 can be controlled through /sys/devices/system/cpu.
1102
Russell King37ee16a2005-11-08 19:08:05 +00001103config LOCAL_TIMERS
1104 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001105 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001106 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001107 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001108 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001109 help
1110 Enable support for local timers on SMP platforms, rather then the
1111 legacy IPI broadcast method. Local timers allows the system
1112 accounting to be spread across the timer interval, preventing a
1113 "thundering herd" at every timer tick.
1114
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001115source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116
Russell Kingf8065812006-03-02 22:41:59 +00001117config HZ
1118 int
1119 default 128 if ARCH_L7200
1120 default 200 if ARCH_EBSA110 || ARCH_S3C2410
Russell Kingbfe65702006-03-04 11:01:53 +00001121 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001122 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001123 default 100
1124
Catalin Marinas16c79652009-07-24 12:33:02 +01001125config THUMB2_KERNEL
1126 bool "Compile the kernel in Thumb-2 mode"
1127 depends on CPU_V7 && EXPERIMENTAL
1128 select AEABI
1129 select ARM_ASM_UNIFIED
1130 help
1131 By enabling this option, the kernel will be compiled in
1132 Thumb-2 mode. A compiler/assembler that understand the unified
1133 ARM-Thumb syntax is needed.
1134
1135 If unsure, say N.
1136
Catalin Marinas0becb082009-07-24 12:32:53 +01001137config ARM_ASM_UNIFIED
1138 bool
1139
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001140config AEABI
1141 bool "Use the ARM EABI to compile the kernel"
1142 help
1143 This option allows for the kernel to be compiled using the latest
1144 ARM ABI (aka EABI). This is only useful if you are using a user
1145 space environment that is also compiled with EABI.
1146
1147 Since there are major incompatibilities between the legacy ABI and
1148 EABI, especially with regard to structure member alignment, this
1149 option also changes the kernel syscall calling convention to
1150 disambiguate both ABIs and allow for backward compatibility support
1151 (selected with CONFIG_OABI_COMPAT).
1152
1153 To use this you need GCC version 4.0.0 or later.
1154
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001155config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001156 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001157 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001158 default y
1159 help
1160 This option preserves the old syscall interface along with the
1161 new (ARM EABI) one. It also provides a compatibility layer to
1162 intercept syscalls that have structure arguments which layout
1163 in memory differs between the legacy ABI and the new ARM EABI
1164 (only for non "thumb" binaries). This option adds a tiny
1165 overhead to all syscalls and produces a slightly larger kernel.
1166 If you know you'll be using only pure EABI user space then you
1167 can say N here. If this option is not selected and you attempt
1168 to execute a legacy ABI binary then the result will be
1169 UNPREDICTABLE (in fact it can be predicted that it won't work
1170 at all). If in doubt say Y.
1171
Mel Gormaneb335752009-05-13 17:34:48 +01001172config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001173 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001174
Russell King07a2f732008-10-01 21:39:58 +01001175# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001176config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178
Russell King05944d72006-11-30 20:43:51 +00001179config ARCH_SPARSEMEM_ENABLE
1180 bool
1181
Russell King07a2f732008-10-01 21:39:58 +01001182config ARCH_SPARSEMEM_DEFAULT
1183 def_bool ARCH_SPARSEMEM_ENABLE
1184
Russell King05944d72006-11-30 20:43:51 +00001185config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001186 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001187
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001188config NODES_SHIFT
1189 int
1190 default "4" if ARCH_LH7A40X
1191 default "2"
1192 depends on NEED_MULTIPLE_NODES
1193
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001194config HIGHMEM
1195 bool "High Memory Support (EXPERIMENTAL)"
1196 depends on MMU && EXPERIMENTAL
1197 help
1198 The address space of ARM processors is only 4 Gigabytes large
1199 and it has to accommodate user address space, kernel address
1200 space as well as some memory mapped IO. That means that, if you
1201 have a large amount of physical memory and/or IO, not all of the
1202 memory can be "permanently mapped" by the kernel. The physical
1203 memory that is not permanently mapped is called "high memory".
1204
1205 Depending on the selected kernel/user memory split, minimum
1206 vmalloc space and actual amount of RAM, you may not need this
1207 option which should result in a slightly faster kernel.
1208
1209 If unsure, say n.
1210
Russell King65cec8e2009-08-17 20:02:06 +01001211config HIGHPTE
1212 bool "Allocate 2nd-level pagetables from highmem"
1213 depends on HIGHMEM
1214 depends on !OUTER_CACHE
1215
Jamie Iles1b8873a2010-02-02 20:25:44 +01001216config HW_PERF_EVENTS
1217 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001218 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001219 default y
1220 help
1221 Enable hardware performance counter support for perf events. If
1222 disabled, perf events will use software events only.
1223
Dave Hansen3f22ab22005-06-23 00:07:43 -07001224source "mm/Kconfig"
1225
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226config LEDS
1227 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001228 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001229 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001230 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1231 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001232 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001233 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001234 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001235 help
1236 If you say Y here, the LEDs on your machine will be used
1237 to provide useful information about your current system status.
1238
1239 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1240 be able to select which LEDs are active using the options below. If
1241 you are compiling a kernel for the EBSA-110 or the LART however, the
1242 red LED will simply flash regularly to indicate that the system is
1243 still functional. It is safe to say Y here if you have a CATS
1244 system, but the driver will do nothing.
1245
1246config LEDS_TIMER
1247 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001248 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1249 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001251 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 default y if ARCH_EBSA110
1253 help
1254 If you say Y here, one of the system LEDs (the green one on the
1255 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1256 will flash regularly to indicate that the system is still
1257 operational. This is mainly useful to kernel hackers who are
1258 debugging unstable kernels.
1259
1260 The LART uses the same LED for both Timer LED and CPU usage LED
1261 functions. You may choose to use both, but the Timer LED function
1262 will overrule the CPU usage LED.
1263
1264config LEDS_CPU
1265 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001266 !ARCH_OMAP) \
1267 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1268 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 depends on LEDS
1270 help
1271 If you say Y here, the red LED will be used to give a good real
1272 time indication of CPU usage, by lighting whenever the idle task
1273 is not currently executing.
1274
1275 The LART uses the same LED for both Timer LED and CPU usage LED
1276 functions. You may choose to use both, but the Timer LED function
1277 will overrule the CPU usage LED.
1278
1279config ALIGNMENT_TRAP
1280 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001281 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001283 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001285 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1287 address divisible by 4. On 32-bit ARM processors, these non-aligned
1288 fetch/store instructions will be emulated in software if you say
1289 here, which has a severe performance impact. This is necessary for
1290 correct operation of some network protocols. With an IP-only
1291 configuration it is safe to say N, otherwise say Y.
1292
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001293config UACCESS_WITH_MEMCPY
1294 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1295 depends on MMU && EXPERIMENTAL
1296 default y if CPU_FEROCEON
1297 help
1298 Implement faster copy_to_user and clear_user methods for CPU
1299 cores where a 8-word STM instruction give significantly higher
1300 memory write throughput than a sequence of individual 32bit stores.
1301
1302 A possible side effect is a slight increase in scheduling latency
1303 between threads sharing the same address space if they invoke
1304 such copy operations with large buffers.
1305
1306 However, if the CPU data cache is using a write-allocate mode,
1307 this option is unlikely to provide any performance gain.
1308
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309endmenu
1310
1311menu "Boot options"
1312
1313# Compressed boot loader in ROM. Yes, we really want to ask about
1314# TEXT and BSS so we preserve their values in the config files.
1315config ZBOOT_ROM_TEXT
1316 hex "Compressed ROM boot loader base address"
1317 default "0"
1318 help
1319 The physical address at which the ROM-able zImage is to be
1320 placed in the target. Platforms which normally make use of
1321 ROM-able zImage formats normally set this to a suitable
1322 value in their defconfig file.
1323
1324 If ZBOOT_ROM is not enabled, this has no effect.
1325
1326config ZBOOT_ROM_BSS
1327 hex "Compressed ROM boot loader BSS address"
1328 default "0"
1329 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001330 The base address of an area of read/write memory in the target
1331 for the ROM-able zImage which must be available while the
1332 decompressor is running. It must be large enough to hold the
1333 entire decompressed kernel plus an additional 128 KiB.
1334 Platforms which normally make use of ROM-able zImage formats
1335 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336
1337 If ZBOOT_ROM is not enabled, this has no effect.
1338
1339config ZBOOT_ROM
1340 bool "Compressed boot loader in ROM/flash"
1341 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1342 help
1343 Say Y here if you intend to execute your compressed kernel image
1344 (zImage) directly from ROM or flash. If unsure, say N.
1345
1346config CMDLINE
1347 string "Default kernel command string"
1348 default ""
1349 help
1350 On some architectures (EBSA110 and CATS), there is currently no way
1351 for the boot loader to pass arguments to the kernel. For these
1352 architectures, you should supply some command-line options at build
1353 time by entering them here. As a minimum, you should specify the
1354 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1355
1356config XIP_KERNEL
1357 bool "Kernel Execute-In-Place from ROM"
1358 depends on !ZBOOT_ROM
1359 help
1360 Execute-In-Place allows the kernel to run from non-volatile storage
1361 directly addressable by the CPU, such as NOR flash. This saves RAM
1362 space since the text section of the kernel is not loaded from flash
1363 to RAM. Read-write sections, such as the data section and stack,
1364 are still copied to RAM. The XIP kernel is not compressed since
1365 it has to run directly from flash, so it will take more space to
1366 store it. The flash address used to link the kernel object files,
1367 and for storing it, is configuration dependent. Therefore, if you
1368 say Y here, you must know the proper physical address where to
1369 store the kernel image depending on your own flash memory usage.
1370
1371 Also note that the make target becomes "make xipImage" rather than
1372 "make zImage" or "make Image". The final kernel binary to put in
1373 ROM memory will be arch/arm/boot/xipImage.
1374
1375 If unsure, say N.
1376
1377config XIP_PHYS_ADDR
1378 hex "XIP Kernel Physical Location"
1379 depends on XIP_KERNEL
1380 default "0x00080000"
1381 help
1382 This is the physical address in your flash memory the kernel will
1383 be linked for and stored to. This address is dependent on your
1384 own flash usage.
1385
Richard Purdiec587e4a2007-02-06 21:29:00 +01001386config KEXEC
1387 bool "Kexec system call (EXPERIMENTAL)"
1388 depends on EXPERIMENTAL
1389 help
1390 kexec is a system call that implements the ability to shutdown your
1391 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001392 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001393 you can start any kernel with it, not just Linux.
1394
1395 It is an ongoing process to be certain the hardware in a machine
1396 is properly shutdown, so do not be surprised if this code does not
1397 initially work for you. It may help to enable device hotplugging
1398 support.
1399
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001400config ATAGS_PROC
1401 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001402 depends on KEXEC
1403 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001404 help
1405 Should the atags used to boot the kernel be exported in an "atags"
1406 file in procfs. Useful with kexec.
1407
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408endmenu
1409
Russell Kingac9d7ef2008-08-18 17:26:00 +01001410menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
Ben Dooks89c52ed2009-07-30 23:23:24 +01001412if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413
1414source "drivers/cpufreq/Kconfig"
1415
1416config CPU_FREQ_SA1100
1417 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418
1419config CPU_FREQ_SA1110
1420 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421
1422config CPU_FREQ_INTEGRATOR
1423 tristate "CPUfreq driver for ARM Integrator CPUs"
1424 depends on ARCH_INTEGRATOR && CPU_FREQ
1425 default y
1426 help
1427 This enables the CPUfreq driver for ARM Integrator CPUs.
1428
1429 For details, take a look at <file:Documentation/cpu-freq>.
1430
1431 If in doubt, say Y.
1432
Russell King9e2697f2007-12-14 13:30:14 +00001433config CPU_FREQ_PXA
1434 bool
1435 depends on CPU_FREQ && ARCH_PXA && PXA25x
1436 default y
1437 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1438
Mark Brownb3748dd2009-06-15 11:23:20 +01001439config CPU_FREQ_S3C64XX
1440 bool "CPUfreq support for Samsung S3C64XX CPUs"
1441 depends on CPU_FREQ && CPU_S3C6410
1442
Ben Dooks9d56c022009-07-30 23:23:25 +01001443config CPU_FREQ_S3C
1444 bool
1445 help
1446 Internal configuration node for common cpufreq on Samsung SoC
1447
1448config CPU_FREQ_S3C24XX
1449 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1450 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1451 select CPU_FREQ_S3C
1452 help
1453 This enables the CPUfreq driver for the Samsung S3C24XX family
1454 of CPUs.
1455
1456 For details, take a look at <file:Documentation/cpu-freq>.
1457
1458 If in doubt, say N.
1459
1460config CPU_FREQ_S3C24XX_PLL
1461 bool "Support CPUfreq changing of PLL frequency"
1462 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1463 help
1464 Compile in support for changing the PLL frequency from the
1465 S3C24XX series CPUfreq driver. The PLL takes time to settle
1466 after a frequency change, so by default it is not enabled.
1467
1468 This also means that the PLL tables for the selected CPU(s) will
1469 be built which may increase the size of the kernel image.
1470
1471config CPU_FREQ_S3C24XX_DEBUG
1472 bool "Debug CPUfreq Samsung driver core"
1473 depends on CPU_FREQ_S3C24XX
1474 help
1475 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1476
1477config CPU_FREQ_S3C24XX_IODEBUG
1478 bool "Debug CPUfreq Samsung driver IO timing"
1479 depends on CPU_FREQ_S3C24XX
1480 help
1481 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1482
Ben Dookse6d197a2009-07-30 23:23:42 +01001483config CPU_FREQ_S3C24XX_DEBUGFS
1484 bool "Export debugfs for CPUFreq"
1485 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1486 help
1487 Export status information via debugfs.
1488
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489endif
1490
Russell Kingac9d7ef2008-08-18 17:26:00 +01001491source "drivers/cpuidle/Kconfig"
1492
1493endmenu
1494
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495menu "Floating point emulation"
1496
1497comment "At least one emulation must be selected"
1498
1499config FPE_NWFPE
1500 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001501 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 ---help---
1503 Say Y to include the NWFPE floating point emulator in the kernel.
1504 This is necessary to run most binaries. Linux does not currently
1505 support floating point hardware so you need to say Y here even if
1506 your machine has an FPA or floating point co-processor podule.
1507
1508 You may say N here if you are going to load the Acorn FPEmulator
1509 early in the bootup.
1510
1511config FPE_NWFPE_XP
1512 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001513 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001514 help
1515 Say Y to include 80-bit support in the kernel floating-point
1516 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1517 Note that gcc does not generate 80-bit operations by default,
1518 so in most cases this option only enlarges the size of the
1519 floating point emulator without any good reason.
1520
1521 You almost surely want to say N here.
1522
1523config FPE_FASTFPE
1524 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001525 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526 ---help---
1527 Say Y here to include the FAST floating point emulator in the kernel.
1528 This is an experimental much faster emulator which now also has full
1529 precision for the mantissa. It does not support any exceptions.
1530 It is very simple, and approximately 3-6 times faster than NWFPE.
1531
1532 It should be sufficient for most programs. It may be not suitable
1533 for scientific calculations, but you have to check this for yourself.
1534 If you do not feel you need a faster FP emulation you should better
1535 choose NWFPE.
1536
1537config VFP
1538 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001539 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 help
1541 Say Y to include VFP support code in the kernel. This is needed
1542 if your hardware includes a VFP unit.
1543
1544 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1545 release notes and additional status information.
1546
1547 Say N if your target does not have VFP hardware.
1548
Catalin Marinas25ebee02007-09-25 15:22:24 +01001549config VFPv3
1550 bool
1551 depends on VFP
1552 default y if CPU_V7
1553
Catalin Marinasb5872db2008-01-10 19:16:17 +01001554config NEON
1555 bool "Advanced SIMD (NEON) Extension support"
1556 depends on VFPv3 && CPU_V7
1557 help
1558 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1559 Extension.
1560
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561endmenu
1562
1563menu "Userspace binary formats"
1564
1565source "fs/Kconfig.binfmt"
1566
1567config ARTHUR
1568 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001569 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570 help
1571 Say Y here to include the kernel code necessary if you want to run
1572 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1573 experimental; if this sounds frightening, say N and sleep in peace.
1574 You can also say M here to compile this support as a module (which
1575 will be called arthur).
1576
1577endmenu
1578
1579menu "Power management options"
1580
Russell Kingeceab4a2005-11-15 11:31:41 +00001581source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582
Johannes Bergf4cb5702007-12-08 02:14:00 +01001583config ARCH_SUSPEND_POSSIBLE
1584 def_bool y
1585
Linus Torvalds1da177e2005-04-16 15:20:36 -07001586endmenu
1587
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001588source "net/Kconfig"
1589
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001590source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591
1592source "fs/Kconfig"
1593
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594source "arch/arm/Kconfig.debug"
1595
1596source "security/Kconfig"
1597
1598source "crypto/Kconfig"
1599
1600source "lib/Kconfig"