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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
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010024 select HAVE_KERNEL_LZMA
Jamie Iles7ada1892010-02-02 20:24:58 +010025 select HAVE_PERF_EVENTS
26 select PERF_USE_VMALLOC
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 help
28 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000029 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 Europe. There is an ARM Linux project with a web page at
33 <http://www.arm.linux.org.uk/>.
34
Russell King1a189b92008-04-13 21:41:55 +010035config HAVE_PWM
36 bool
37
Ralf Baechle75e71532007-02-09 17:08:58 +000038config SYS_SUPPORTS_APM_EMULATION
39 bool
40
David Brownell0a938b92007-03-05 00:30:18 -080041config GENERIC_GPIO
42 bool
David Brownell0a938b92007-03-05 00:30:18 -080043
Kevin Hilman746140c2006-09-22 00:16:30 +010044config GENERIC_TIME
45 bool
John Stultz5cfc8ee2010-03-24 00:22:36 +000046 default y
47
48config ARCH_USES_GETTIMEOFFSET
49 bool
50 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010051
Kevin Hilman0567a0c2007-03-13 20:29:24 +010052config GENERIC_CLOCKEVENTS
53 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010054
Catalin Marinasa8655e82008-02-04 17:30:57 +010055config GENERIC_CLOCKEVENTS_BROADCAST
56 bool
57 depends on GENERIC_CLOCKEVENTS
58 default y if SMP && !LOCAL_TIMERS
59
Linus Walleijbc581772009-09-15 17:30:37 +010060config HAVE_TCM
61 bool
62 select GENERIC_ALLOCATOR
63
Russell Kinge119bff2010-01-10 17:23:29 +000064config HAVE_PROC_CPU
65 bool
66
Al Viro5ea81762007-02-11 15:41:31 +000067config NO_IOPORT
68 bool
Al Viro5ea81762007-02-11 15:41:31 +000069
Linus Torvalds1da177e2005-04-16 15:20:36 -070070config EISA
71 bool
72 ---help---
73 The Extended Industry Standard Architecture (EISA) bus was
74 developed as an open alternative to the IBM MicroChannel bus.
75
76 The EISA bus provided some of the features of the IBM MicroChannel
77 bus while maintaining backward compatibility with cards made for
78 the older ISA bus. The EISA bus saw limited use between 1988 and
79 1995 when it was made obsolete by the PCI bus.
80
81 Say Y here if you are building a kernel for an EISA-based machine.
82
83 Otherwise, say N.
84
85config SBUS
86 bool
87
88config MCA
89 bool
90 help
91 MicroChannel Architecture is found in some IBM PS/2 machines and
92 laptops. It is a bus system similar to PCI or ISA. See
93 <file:Documentation/mca.txt> (and especially the web page given
94 there) before attempting to build an MCA bus kernel.
95
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010096config GENERIC_HARDIRQS
97 bool
98 default y
99
Russell Kingf16fb1e2007-04-28 09:59:37 +0100100config STACKTRACE_SUPPORT
101 bool
102 default y
103
Nicolas Pitref76e9152008-04-24 01:31:46 -0400104config HAVE_LATENCYTOP_SUPPORT
105 bool
106 depends on !SMP
107 default y
108
Russell Kingf16fb1e2007-04-28 09:59:37 +0100109config LOCKDEP_SUPPORT
110 bool
111 default y
112
Russell King7ad1bcb2006-08-27 12:07:02 +0100113config TRACE_IRQFLAGS_SUPPORT
114 bool
115 default y
116
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100117config HARDIRQS_SW_RESEND
118 bool
119 default y
120
121config GENERIC_IRQ_PROBE
122 bool
123 default y
124
Nick Piggin95c354f2008-01-30 13:31:20 +0100125config GENERIC_LOCKBREAK
126 bool
127 default y
128 depends on SMP && PREEMPT
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130config RWSEM_GENERIC_SPINLOCK
131 bool
132 default y
133
134config RWSEM_XCHGADD_ALGORITHM
135 bool
136
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137config ARCH_HAS_ILOG2_U32
138 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139
140config ARCH_HAS_ILOG2_U64
141 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800142
Ben Dooks89c52ed2009-07-30 23:23:24 +0100143config ARCH_HAS_CPUFREQ
144 bool
145 help
146 Internal node to signify that the ARCH has CPUFREQ support
147 and that the relevant menu configurations are displayed for
148 it.
149
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800150config GENERIC_HWEIGHT
151 bool
152 default y
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154config GENERIC_CALIBRATE_DELAY
155 bool
156 default y
157
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100158config ARCH_MAY_HAVE_PC_FDC
159 bool
160
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161config ZONE_DMA
162 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800164config NEED_DMA_MAP_STATE
165 def_bool y
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167config GENERIC_ISA_DMA
168 bool
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config FIQ
171 bool
172
Al Viro034d2f52005-12-19 16:27:59 -0500173config ARCH_MTD_XIP
174 bool
175
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100176config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100177 def_bool y
178
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100179config ARM_L1_CACHE_SHIFT_6
180 bool
181 help
182 Setting ARM L1 cache line size to 64 Bytes.
183
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500184if OPROFILE
185
186config OPROFILE_ARMV6
187 def_bool y
188 depends on CPU_V6 && !SMP
189 select OPROFILE_ARM11_CORE
190
191config OPROFILE_MPCORE
192 def_bool y
193 depends on CPU_V6 && SMP
194 select OPROFILE_ARM11_CORE
195
196config OPROFILE_ARM11_CORE
197 bool
198
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100199config OPROFILE_ARMV7
200 def_bool y
201 depends on CPU_V7 && !SMP
202 bool
203
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500204endif
205
Hyok S. Choic760fc12006-03-27 15:18:50 +0100206config VECTORS_BASE
207 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900208 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100209 default DRAM_BASE if REMAP_VECTORS_TO_RAM
210 default 0x00000000
211 help
212 The base address of exception vectors.
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214source "init/Kconfig"
215
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700216source "kernel/Kconfig.freezer"
217
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218menu "System Type"
219
Hyok S. Choi3c427972009-07-24 12:35:00 +0100220config MMU
221 bool "MMU-based Paged Memory Management Support"
222 default y
223 help
224 Select if you want MMU-based virtualised addressing space
225 support by paged memory management. If unsure, say 'Y'.
226
Russell Kingccf50e22010-03-15 19:03:06 +0000227#
228# The "ARM system type" choice list is ordered alphabetically by option
229# text. Please add new entries in the option alphabetic order.
230#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231choice
232 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000233 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100235config ARCH_AAEC2000
236 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000237 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100238 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700239 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000240 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100241 help
242 This enables support for systems based on the Agilent AAEC-2000
243
244config ARCH_INTEGRATOR
245 bool "ARM Ltd. Integrator family"
246 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100247 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000248 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000249 select ICST
Russell Kingb9cedda2010-01-15 18:10:33 +0000250 select GENERIC_TIME
Russell King13edd862010-01-15 21:49:23 +0000251 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000252 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100253 help
254 Support for ARM's Integrator platform.
255
256config ARCH_REALVIEW
257 bool "ARM Ltd. RealView family"
258 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000259 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Catalin Marinas85802af2008-02-04 17:24:54 +0100261 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100262 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100263 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000264 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000265 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100266 help
267 This enables support for ARM Ltd RealView boards.
268
269config ARCH_VERSATILE
270 bool "ARM Ltd. Versatile family"
271 select ARM_AMBA
272 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000273 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000274 select ICST
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100275 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100276 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100277 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000278 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000279 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100280 help
281 This enables support for ARM Ltd Versatile board.
282
Russell Kingceade892010-02-11 21:44:53 +0000283config ARCH_VEXPRESS
284 bool "ARM Ltd. Versatile Express family"
285 select ARCH_WANT_OPTIONAL_GPIOLIB
286 select ARM_AMBA
287 select ARM_TIMER_SP804
288 select COMMON_CLKDEV
289 select GENERIC_CLOCKEVENTS
290 select GENERIC_TIME
291 select HAVE_CLK
292 select ICST
293 select PLAT_VERSATILE
294 help
295 This enables support for the ARM Ltd Versatile Express boards.
296
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100297config ARCH_AT91
298 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100299 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700300 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000301 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100303 This enables support for systems based on the Atmel AT91RM9200,
304 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305
Russell Kingccf50e22010-03-15 19:03:06 +0000306config ARCH_BCMRING
307 bool "Broadcom BCMRING"
308 depends on MMU
309 select CPU_V6
310 select ARM_AMBA
311 select COMMON_CLKDEV
312 select GENERIC_TIME
313 select GENERIC_CLOCKEVENTS
314 select ARCH_WANT_OPTIONAL_GPIOLIB
315 help
316 Support for Broadcom's BCMRing platform.
317
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000320 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000321 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000322 help
323 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
Russell King788c9702009-04-26 14:21:59 +0100325config ARCH_GEMINI
326 bool "Cortina Systems Gemini"
327 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100328 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000329 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100330 help
331 Support for the Cortina Systems Gemini family SoCs
332
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333config ARCH_EBSA110
334 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100336 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000337 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000338 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 help
340 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000341 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 Ethernet interface, two PCMCIA sockets, two serial ports and a
343 parallel port.
344
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000345config ARCH_EP93XX
346 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000347 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000348 select ARM_AMBA
349 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000350 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700351 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100352 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000353 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000354 help
355 This enables support for the Cirrus EP93xx series of CPUs.
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357config ARCH_FOOTBRIDGE
358 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000359 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000361 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000362 help
363 Support for systems based on the DC21285 companion chip
364 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
Russell King788c9702009-04-26 14:21:59 +0100366config ARCH_MXC
367 bool "Freescale MXC/iMX-based"
368 select GENERIC_TIME
369 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100370 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100371 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100372 help
373 Support for Freescale MXC/iMX-based family of processors
374
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100375config ARCH_STMP3XXX
376 bool "Freescale STMP3xxx"
377 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100378 select COMMON_CLKDEV
379 select ARCH_REQUIRE_GPIOLIB
380 select GENERIC_TIME
381 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100382 select USB_ARCH_HAS_EHCI
383 help
384 Support for systems based on the Freescale 3xxx CPUs.
385
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100386config ARCH_NETX
387 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100389 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100390 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100391 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000392 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100393 This enables support for systems based on the Hilscher NetX Soc
394
395config ARCH_H720X
396 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000397 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100398 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000399 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100400 help
401 This enables support for systems based on the Hynix HMS720x
402
Russell King3b938be2007-05-12 11:25:44 +0100403config ARCH_IOP13XX
404 bool "IOP13xx-based"
405 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000406 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100407 select PLAT_IOP
408 select PCI
409 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100410 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100411 help
412 Support for Intel's IOP13XX (XScale) family of processors.
413
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100414config ARCH_IOP32X
415 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100416 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100418 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100419 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100420 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000421 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100422 Support for Intel's 80219 and IOP32X (XScale) family of
423 processors.
424
425config ARCH_IOP33X
426 bool "IOP33x-based"
427 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100429 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100430 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100431 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100432 help
433 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
Russell King3b938be2007-05-12 11:25:44 +0100435config ARCH_IXP23XX
436 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100437 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100439 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000440 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100441 help
Russell King3b938be2007-05-12 11:25:44 +0100442 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443
444config ARCH_IXP2000
445 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100446 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000447 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100448 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000449 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000450 help
451 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
Russell King3b938be2007-05-12 11:25:44 +0100453config ARCH_IXP4XX
454 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100455 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000456 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100457 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100458 select GENERIC_TIME
459 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100460 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100461 help
Russell King3b938be2007-05-12 11:25:44 +0100462 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464config ARCH_L7200
465 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 select FIQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000468 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 help
470 Say Y here if you intend to run this kernel on a LinkUp Systems
471 L7200 Software Development Board which uses an ARM720T processor.
472 Information on this board can be obtained at:
473
474 <http://www.linkupsys.com/>
475
476 If you have any questions or comments about the Linux kernel port
477 to this board, send e-mail to <sjhill@cotw.com>.
478
Saeed Bisharaedabd382009-08-06 15:12:43 +0300479config ARCH_DOVE
480 bool "Marvell Dove"
481 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300482 select ARCH_REQUIRE_GPIOLIB
483 select GENERIC_TIME
484 select GENERIC_CLOCKEVENTS
485 select PLAT_ORION
486 help
487 Support for the Marvell Dove SoC 88AP510
488
Saeed Bishara651c74c2008-06-22 22:45:06 +0200489config ARCH_KIRKWOOD
490 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200492 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700493 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200494 select GENERIC_TIME
495 select GENERIC_CLOCKEVENTS
496 select PLAT_ORION
497 help
498 Support for the following Marvell Kirkwood series SoCs:
499 88F6180, 88F6192 and 88F6281.
500
Russell King788c9702009-04-26 14:21:59 +0100501config ARCH_LOKI
502 bool "Marvell Loki (88RC8480)"
503 select CPU_FEROCEON
504 select GENERIC_TIME
505 select GENERIC_CLOCKEVENTS
506 select PLAT_ORION
507 help
508 Support for the Marvell Loki (88RC8480) SoC.
509
510config ARCH_MV78XX0
511 bool "Marvell MV78xx0"
512 select CPU_FEROCEON
513 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700514 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100515 select GENERIC_TIME
516 select GENERIC_CLOCKEVENTS
517 select PLAT_ORION
518 help
519 Support for the following Marvell MV78xx0 series SoCs:
520 MV781x0, MV782x0.
521
522config ARCH_ORION5X
523 bool "Marvell Orion"
524 depends on MMU
525 select CPU_FEROCEON
526 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100528 select GENERIC_TIME
529 select GENERIC_CLOCKEVENTS
530 select PLAT_ORION
531 help
532 Support for the following Marvell Orion 5x series SoCs:
533 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
534 Orion-2 (5281), Orion-1-90 (6183).
535
536config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500537 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100538 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100539 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100540 select COMMON_CLKDEV
541 select GENERIC_TIME
542 select GENERIC_CLOCKEVENTS
543 select TICK_ONESHOT
544 select PLAT_PXA
545 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500546 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100547
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100548config ARCH_KS8695
549 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000550 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100551 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000552 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100553 help
554 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
555 System-on-Chip devices.
556
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100557config ARCH_NS9XXX
558 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000559 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100560 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100561 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100562 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700563 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100564 help
565 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
566 System.
567
568 <http://www.digi.com/products/microprocessors/index.jsp>
569
Russell King788c9702009-04-26 14:21:59 +0100570config ARCH_W90X900
571 bool "Nuvoton W90X900 CPU"
572 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100573 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100574 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100575 select GENERIC_TIME
576 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200577 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100578 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
579 At present, the w90x900 has been renamed nuc900, regarding
580 the ARM series product line, you can login the following
581 link address to know more.
582
583 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
584 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400585
wanzongshuna62e9032009-12-31 15:06:05 +0100586config ARCH_NUC93X
587 bool "Nuvoton NUC93X CPU"
588 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100589 select COMMON_CLKDEV
590 help
591 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
592 low-power and high performance MPEG-4/JPEG multimedia controller chip.
593
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100594config ARCH_PNX4008
595 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000596 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000597 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000598 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100599 help
600 This enables support for Philips PNX4008 mobile platform.
601
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700603 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100604 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500605 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100606 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000607 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700608 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100609 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100610 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000611 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800612 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000613 help
eric miao2c8086a2007-09-11 19:13:17 -0700614 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Russell King788c9702009-04-26 14:21:59 +0100616config ARCH_MSM
617 bool "Qualcomm MSM"
618 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800619 select GENERIC_TIME
620 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800621 help
Russell King788c9702009-04-26 14:21:59 +0100622 Support for Qualcomm MSM7K based systems. This runs on the ARM11
623 apps processor of the MSM7K and depends on a shared memory
624 interface to the ARM9 modem processor which runs the baseband stack
625 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800626
Magnus Dammc793c1b2010-02-05 11:14:49 +0000627config ARCH_SHMOBILE
628 bool "Renesas SH-Mobile"
629 help
630 Support for Renesas's SH-Mobile ARM platforms
631
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632config ARCH_RPC
633 bool "RiscPC"
634 select ARCH_ACORN
635 select FIQ
636 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100637 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100638 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000639 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000640 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100641 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000642 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643 help
644 On the Acorn Risc-PC, Linux can support the internal IDE disk and
645 CD-ROM interface, serial and parallel port, and the floppy drive.
646
647config ARCH_SA1100
648 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000649 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100650 select ISA
Russell King05944d72006-11-30 20:43:51 +0000651 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500652 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100653 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000654 select CPU_FREQ
Russell Kingd142b6e2007-11-12 21:55:12 +0000655 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100656 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700657 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100658 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700659 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000660 help
661 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662
663config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100664 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800665 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100666 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700667 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000668 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 help
670 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
671 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000672 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673
Ben Dooksa08ab632008-10-21 14:06:39 +0100674config ARCH_S3C64XX
675 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000676 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900677 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900678 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100679 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900680 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000681 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100682 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900683 select ARCH_REQUIRE_GPIOLIB
684 select SAMSUNG_CLKSRC
685 select SAMSUNG_IRQ_VIC_TIMER
686 select SAMSUNG_IRQ_UART
687 select S3C_GPIO_TRACK
688 select S3C_GPIO_PULL_UPDOWN
689 select S3C_GPIO_CFG_S3C24XX
690 select S3C_GPIO_CFG_S3C64XX
691 select S3C_DEV_NAND
692 select USB_ARCH_HAS_OHCI
693 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100694 help
695 Samsung S3C64XX series based systems
696
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900697config ARCH_S5P6440
698 bool "Samsung S5P6440"
699 select CPU_V6
700 select GENERIC_GPIO
701 select HAVE_CLK
702 help
703 Samsung S5P6440 CPU based systems
704
Kukjin Kim550db7f2010-01-29 10:19:26 +0900705config ARCH_S5P6442
706 bool "Samsung S5P6442"
707 select CPU_V6
708 select GENERIC_GPIO
709 select HAVE_CLK
710 help
711 Samsung S5P6442 CPU based systems
712
Byungho Min5a7652f2009-06-23 21:39:42 +0900713config ARCH_S5PC1XX
714 bool "Samsung S5PC1XX"
715 select GENERIC_GPIO
716 select HAVE_CLK
717 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100718 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900719 help
720 Samsung S5PC1XX series based systems
721
Kukjin Kim170f4e42010-02-24 16:40:44 +0900722config ARCH_S5PV210
723 bool "Samsung S5PV210/S5PC110"
724 select CPU_V7
725 select GENERIC_GPIO
726 select HAVE_CLK
727 select ARM_L1_CACHE_SHIFT_6
728 help
729 Samsung S5PV210/S5PC110 series based systems
730
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731config ARCH_SHARK
732 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000733 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100734 select ISA
735 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100736 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100737 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000738 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000739 help
740 Support for the StrongARM based Digital DNARD machine, also known
741 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742
743config ARCH_LH7A40X
744 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000745 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100746 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
747 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000748 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 help
750 Say Y here for systems based on one of the Sharp LH7A40X
751 System on a Chip processors. These CPUs include an ARM922T
752 core with a wide array of integrated devices for
753 hand-held and low-power applications.
754
Linus Walleijd98aac72009-04-27 10:21:46 +0100755config ARCH_U300
756 bool "ST-Ericsson U300 Series"
757 depends on MMU
758 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100759 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100760 select ARM_AMBA
761 select ARM_VIC
762 select GENERIC_TIME
763 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100764 select COMMON_CLKDEV
765 select GENERIC_GPIO
766 help
767 Support for ST-Ericsson U300 series mobile platforms.
768
Russell Kingccf50e22010-03-15 19:03:06 +0000769config ARCH_U8500
770 bool "ST-Ericsson U8500 Series"
771 select CPU_V7
772 select ARM_AMBA
773 select GENERIC_TIME
774 select GENERIC_CLOCKEVENTS
775 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100776 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000777 help
778 Support for ST-Ericsson's Ux500 architecture
779
780config ARCH_NOMADIK
781 bool "STMicroelectronics Nomadik"
782 select ARM_AMBA
783 select ARM_VIC
784 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000785 select COMMON_CLKDEV
786 select GENERIC_TIME
787 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000788 select ARCH_REQUIRE_GPIOLIB
789 help
790 Support for the Nomadik platform by ST-Ericsson
791
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100792config ARCH_DAVINCI
793 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000794 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100795 select GENERIC_TIME
796 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700797 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100798 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700799 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700800 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700801 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530802 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100803 help
804 Support for TI's DaVinci platform.
805
Russell King3b938be2007-05-12 11:25:44 +0100806config ARCH_OMAP
807 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700808 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700809 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100810 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100811 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700812 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800813 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100814 help
815 Support for TI's OMAP platform (OMAP1 and OMAP2).
816
viresh kumarcee37e52010-04-01 12:31:05 +0100817config PLAT_SPEAR
818 bool "ST SPEAr"
819 select ARM_AMBA
820 select ARCH_REQUIRE_GPIOLIB
821 select COMMON_CLKDEV
822 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100823 select GENERIC_TIME
824 select HAVE_CLK
825 help
826 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
827
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828endchoice
829
Russell Kingccf50e22010-03-15 19:03:06 +0000830#
831# This is sorted alphabetically by mach-* pathname. However, plat-*
832# Kconfigs may be included either alphabetically (according to the
833# plat- suffix) or along side the corresponding mach-* source.
834#
Russell King95b8f202010-01-14 11:43:54 +0000835source "arch/arm/mach-aaec2000/Kconfig"
836
837source "arch/arm/mach-at91/Kconfig"
838
839source "arch/arm/mach-bcmring/Kconfig"
840
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841source "arch/arm/mach-clps711x/Kconfig"
842
Russell King95b8f202010-01-14 11:43:54 +0000843source "arch/arm/mach-davinci/Kconfig"
844
845source "arch/arm/mach-dove/Kconfig"
846
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000847source "arch/arm/mach-ep93xx/Kconfig"
848
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849source "arch/arm/mach-footbridge/Kconfig"
850
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200851source "arch/arm/mach-gemini/Kconfig"
852
Russell King95b8f202010-01-14 11:43:54 +0000853source "arch/arm/mach-h720x/Kconfig"
854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855source "arch/arm/mach-integrator/Kconfig"
856
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100857source "arch/arm/mach-iop32x/Kconfig"
858
859source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860
Dan Williams285f5fa2006-12-07 02:59:39 +0100861source "arch/arm/mach-iop13xx/Kconfig"
862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863source "arch/arm/mach-ixp4xx/Kconfig"
864
865source "arch/arm/mach-ixp2000/Kconfig"
866
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100867source "arch/arm/mach-ixp23xx/Kconfig"
868
Russell King95b8f202010-01-14 11:43:54 +0000869source "arch/arm/mach-kirkwood/Kconfig"
870
871source "arch/arm/mach-ks8695/Kconfig"
872
873source "arch/arm/mach-lh7a40x/Kconfig"
874
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200875source "arch/arm/mach-loki/Kconfig"
876
Russell King95b8f202010-01-14 11:43:54 +0000877source "arch/arm/mach-msm/Kconfig"
878
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200879source "arch/arm/mach-mv78xx0/Kconfig"
880
Russell King95b8f202010-01-14 11:43:54 +0000881source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882
Russell King95b8f202010-01-14 11:43:54 +0000883source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800884
Russell King95b8f202010-01-14 11:43:54 +0000885source "arch/arm/mach-nomadik/Kconfig"
886source "arch/arm/plat-nomadik/Kconfig"
887
888source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889
Russell Kingd91a89102010-02-04 18:13:17 +0000890source "arch/arm/mach-nuc93x/Kconfig"
891
Tony Lindgrend48af152005-07-10 19:58:17 +0100892source "arch/arm/plat-omap/Kconfig"
893
894source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895
Tony Lindgren1dbae812005-11-10 14:26:51 +0000896source "arch/arm/mach-omap2/Kconfig"
897
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400898source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400899
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-pxa/Kconfig"
901source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-mmp/Kconfig"
904
905source "arch/arm/mach-realview/Kconfig"
906
907source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300908
Ben Dookscf383672009-11-10 00:14:58 +0000909source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100910source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900911source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900912source "arch/arm/plat-s5pc1xx/Kconfig"
viresh kumarcee37e52010-04-01 12:31:05 +0100913source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100914
915if ARCH_S3C2410
916source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100918source "arch/arm/mach-s3c2412/Kconfig"
919source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100920source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100921endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Ben Dooksa08ab632008-10-21 14:06:39 +0100923if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900924source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100925endif
926
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900927source "arch/arm/mach-s5p6440/Kconfig"
928
Kukjin Kim550db7f2010-01-29 10:19:26 +0900929source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100930
Byungho Min5a7652f2009-06-23 21:39:42 +0900931if ARCH_S5PC1XX
932source "arch/arm/mach-s5pc100/Kconfig"
933endif
934
Kukjin Kim170f4e42010-02-24 16:40:44 +0900935source "arch/arm/mach-s5pv210/Kconfig"
936
Russell King882d01f2010-03-02 23:40:15 +0000937source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938
Russell King882d01f2010-03-02 23:40:15 +0000939source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800940
Russell King95b8f202010-01-14 11:43:54 +0000941source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
945source "arch/arm/mach-versatile/Kconfig"
946
Russell Kingceade892010-02-11 21:44:53 +0000947source "arch/arm/mach-vexpress/Kconfig"
948
wanzongshun7ec80dd2008-12-03 03:55:38 +0100949source "arch/arm/mach-w90x900/Kconfig"
950
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951# Definitions to make life easier
952config ARCH_ACORN
953 bool
954
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100955config PLAT_IOP
956 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700957 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700958 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100959
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400960config PLAT_ORION
961 bool
962
Eric Miaobd5ce432009-01-20 12:06:01 +0800963config PLAT_PXA
964 bool
965
Russell Kingf4b8b312010-01-14 12:48:06 +0000966config PLAT_VERSATILE
967 bool
968
Russell Kinge3887712010-01-14 13:30:16 +0000969config ARM_TIMER_SP804
970 bool
971
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972source arch/arm/mm/Kconfig
973
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100974config IWMMXT
975 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800976 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
977 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100978 help
979 Enable support for iWMMXt context switching at run time if
980 running on a CPU that supports it.
981
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
983config XSCALE_PMU
984 bool
985 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
986 default y
987
Jamie Iles0f4f0672010-02-02 20:23:15 +0100988config CPU_HAS_PMU
989 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
990 default y
991 bool
992
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100993if !MMU
994source "arch/arm/Kconfig-nommu"
995endif
996
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100997config ARM_ERRATA_411920
998 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
999 depends on CPU_V6 && !SMP
1000 help
1001 Invalidation of the Instruction Cache operation can
1002 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1003 It does not affect the MPCore. This option enables the ARM Ltd.
1004 recommended workaround.
1005
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001006config ARM_ERRATA_430973
1007 bool "ARM errata: Stale prediction on replaced interworking branch"
1008 depends on CPU_V7
1009 help
1010 This option enables the workaround for the 430973 Cortex-A8
1011 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1012 interworking branch is replaced with another code sequence at the
1013 same virtual address, whether due to self-modifying code or virtual
1014 to physical address re-mapping, Cortex-A8 does not recover from the
1015 stale interworking branch prediction. This results in Cortex-A8
1016 executing the new code sequence in the incorrect ARM or Thumb state.
1017 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1018 and also flushes the branch target cache at every context switch.
1019 Note that setting specific bits in the ACTLR register may not be
1020 available in non-secure mode.
1021
Catalin Marinas855c5512009-04-30 17:06:15 +01001022config ARM_ERRATA_458693
1023 bool "ARM errata: Processor deadlock when a false hazard is created"
1024 depends on CPU_V7
1025 help
1026 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1027 erratum. For very specific sequences of memory operations, it is
1028 possible for a hazard condition intended for a cache line to instead
1029 be incorrectly associated with a different cache line. This false
1030 hazard might then cause a processor deadlock. The workaround enables
1031 the L1 caching of the NEON accesses and disables the PLD instruction
1032 in the ACTLR register. Note that setting specific bits in the ACTLR
1033 register may not be available in non-secure mode.
1034
Catalin Marinas0516e462009-04-30 17:06:20 +01001035config ARM_ERRATA_460075
1036 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1037 depends on CPU_V7
1038 help
1039 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1040 erratum. Any asynchronous access to the L2 cache may encounter a
1041 situation in which recent store transactions to the L2 cache are lost
1042 and overwritten with stale memory contents from external memory. The
1043 workaround disables the write-allocate mode for the L2 cache via the
1044 ACTLR register. Note that setting specific bits in the ACTLR register
1045 may not be available in non-secure mode.
1046
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001047config PL310_ERRATA_588369
1048 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1049 depends on CACHE_L2X0 && ARCH_OMAP4
1050 help
1051 The PL310 L2 cache controller implements three types of Clean &
1052 Invalidate maintenance operations: by Physical Address
1053 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1054 They are architecturally defined to behave as the execution of a
1055 clean operation followed immediately by an invalidate operation,
1056 both performing to the same memory location. This functionality
1057 is not correctly implemented in PL310 as clean lines are not
1058 invalidated as a result of these operations. Note that this errata
1059 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060endmenu
1061
1062source "arch/arm/common/Kconfig"
1063
1064config FORCE_MAX_ZONEORDER
1065 int
1066 depends on SA1111
1067 default "9"
1068
1069menu "Bus support"
1070
1071config ARM_AMBA
1072 bool
1073
1074config ISA
1075 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 help
1077 Find out whether you have ISA slots on your motherboard. ISA is the
1078 name of a bus system, i.e. the way the CPU talks to the other stuff
1079 inside your box. Other bus systems are PCI, EISA, MicroChannel
1080 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1081 newer boards don't support it. If you have ISA, say Y, otherwise N.
1082
Russell King065909b2006-01-04 15:44:16 +00001083# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084config ISA_DMA
1085 bool
Russell King065909b2006-01-04 15:44:16 +00001086 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
Russell King065909b2006-01-04 15:44:16 +00001088# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001089config ISA_DMA_API
1090 bool
Al Viro5cae8412005-05-04 05:39:22 +01001091
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001093 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094 help
1095 Find out whether you have a PCI motherboard. PCI is the name of a
1096 bus system, i.e. the way the CPU talks to the other stuff inside
1097 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1098 VESA. If you have PCI, say Y, otherwise N.
1099
Anton Vorontsov52882172010-04-19 13:20:49 +01001100config PCI_DOMAINS
1101 bool
1102 depends on PCI
1103
Matthew Wilcox36e23592007-07-10 10:54:40 -06001104config PCI_SYSCALL
1105 def_bool PCI
1106
Linus Torvalds1da177e2005-04-16 15:20:36 -07001107# Select the host bridge type
1108config PCI_HOST_VIA82C505
1109 bool
1110 depends on PCI && ARCH_SHARK
1111 default y
1112
Mike Rapoporta0113a92007-11-25 08:55:34 +01001113config PCI_HOST_ITE8152
1114 bool
1115 depends on PCI && MACH_ARMCORE
1116 default y
1117 select DMABOUNCE
1118
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119source "drivers/pci/Kconfig"
1120
1121source "drivers/pcmcia/Kconfig"
1122
1123endmenu
1124
1125menu "Kernel Features"
1126
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001127source "kernel/time/Kconfig"
1128
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129config SMP
1130 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001131 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Russell King59ac59f2010-02-11 21:56:07 +00001132 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1133 ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Russell Kingbc282482009-05-17 18:58:34 +01001134 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001135 select USE_GENERIC_SMP_HELPERS
Russell King59ac59f2010-02-11 21:56:07 +00001136 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001137 help
1138 This enables support for systems with more than one CPU. If you have
1139 a system with only one CPU, like most personal computers, say N. If
1140 you have a system with more than one CPU, say Y.
1141
1142 If you say N here, the kernel will run on single and multiprocessor
1143 machines, but will use only one CPU of a multiprocessor machine. If
1144 you say Y here, the kernel will run on many, but not all, single
1145 processor machines. On a single processor machine, the kernel will
1146 run faster if you say N here.
1147
Adrian Bunk03502fa2008-02-03 15:50:21 +02001148 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1150 <http://www.linuxdoc.org/docs.html#howto>.
1151
1152 If you don't know what to do here, say N.
1153
Russell Kinga8cbcd92009-05-16 11:51:14 +01001154config HAVE_ARM_SCU
1155 bool
1156 depends on SMP
1157 help
1158 This option enables support for the ARM system coherency unit
1159
Russell Kingf32f4ce2009-05-16 12:14:21 +01001160config HAVE_ARM_TWD
1161 bool
1162 depends on SMP
1163 help
1164 This options enables support for the ARM timer and watchdog unit
1165
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001166choice
1167 prompt "Memory split"
1168 default VMSPLIT_3G
1169 help
1170 Select the desired split between kernel and user memory.
1171
1172 If you are not absolutely sure what you are doing, leave this
1173 option alone!
1174
1175 config VMSPLIT_3G
1176 bool "3G/1G user/kernel split"
1177 config VMSPLIT_2G
1178 bool "2G/2G user/kernel split"
1179 config VMSPLIT_1G
1180 bool "1G/3G user/kernel split"
1181endchoice
1182
1183config PAGE_OFFSET
1184 hex
1185 default 0x40000000 if VMSPLIT_1G
1186 default 0x80000000 if VMSPLIT_2G
1187 default 0xC0000000
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189config NR_CPUS
1190 int "Maximum number of CPUs (2-32)"
1191 range 2 32
1192 depends on SMP
1193 default "4"
1194
Russell Kinga054a812005-11-02 22:24:33 +00001195config HOTPLUG_CPU
1196 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1197 depends on SMP && HOTPLUG && EXPERIMENTAL
1198 help
1199 Say Y here to experiment with turning CPUs off and on. CPUs
1200 can be controlled through /sys/devices/system/cpu.
1201
Russell King37ee16a2005-11-08 19:08:05 +00001202config LOCAL_TIMERS
1203 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001204 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001205 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001206 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001207 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001208 help
1209 Enable support for local timers on SMP platforms, rather then the
1210 legacy IPI broadcast method. Local timers allows the system
1211 accounting to be spread across the timer interval, preventing a
1212 "thundering herd" at every timer tick.
1213
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001214source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215
Russell Kingf8065812006-03-02 22:41:59 +00001216config HZ
1217 int
1218 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001219 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001220 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001221 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001222 default 100
1223
Catalin Marinas16c79652009-07-24 12:33:02 +01001224config THUMB2_KERNEL
1225 bool "Compile the kernel in Thumb-2 mode"
1226 depends on CPU_V7 && EXPERIMENTAL
1227 select AEABI
1228 select ARM_ASM_UNIFIED
1229 help
1230 By enabling this option, the kernel will be compiled in
1231 Thumb-2 mode. A compiler/assembler that understand the unified
1232 ARM-Thumb syntax is needed.
1233
1234 If unsure, say N.
1235
Catalin Marinas0becb082009-07-24 12:32:53 +01001236config ARM_ASM_UNIFIED
1237 bool
1238
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001239config AEABI
1240 bool "Use the ARM EABI to compile the kernel"
1241 help
1242 This option allows for the kernel to be compiled using the latest
1243 ARM ABI (aka EABI). This is only useful if you are using a user
1244 space environment that is also compiled with EABI.
1245
1246 Since there are major incompatibilities between the legacy ABI and
1247 EABI, especially with regard to structure member alignment, this
1248 option also changes the kernel syscall calling convention to
1249 disambiguate both ABIs and allow for backward compatibility support
1250 (selected with CONFIG_OABI_COMPAT).
1251
1252 To use this you need GCC version 4.0.0 or later.
1253
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001254config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001255 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001256 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001257 default y
1258 help
1259 This option preserves the old syscall interface along with the
1260 new (ARM EABI) one. It also provides a compatibility layer to
1261 intercept syscalls that have structure arguments which layout
1262 in memory differs between the legacy ABI and the new ARM EABI
1263 (only for non "thumb" binaries). This option adds a tiny
1264 overhead to all syscalls and produces a slightly larger kernel.
1265 If you know you'll be using only pure EABI user space then you
1266 can say N here. If this option is not selected and you attempt
1267 to execute a legacy ABI binary then the result will be
1268 UNPREDICTABLE (in fact it can be predicted that it won't work
1269 at all). If in doubt say Y.
1270
Mel Gormaneb335752009-05-13 17:34:48 +01001271config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001272 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001273
Russell King07a2f732008-10-01 21:39:58 +01001274# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001275config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277
Russell King05944d72006-11-30 20:43:51 +00001278config ARCH_SPARSEMEM_ENABLE
1279 bool
1280
Russell King07a2f732008-10-01 21:39:58 +01001281config ARCH_SPARSEMEM_DEFAULT
1282 def_bool ARCH_SPARSEMEM_ENABLE
1283
Russell King05944d72006-11-30 20:43:51 +00001284config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001285 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001286
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001287config NODES_SHIFT
1288 int
1289 default "4" if ARCH_LH7A40X
1290 default "2"
1291 depends on NEED_MULTIPLE_NODES
1292
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001293config HIGHMEM
1294 bool "High Memory Support (EXPERIMENTAL)"
1295 depends on MMU && EXPERIMENTAL
1296 help
1297 The address space of ARM processors is only 4 Gigabytes large
1298 and it has to accommodate user address space, kernel address
1299 space as well as some memory mapped IO. That means that, if you
1300 have a large amount of physical memory and/or IO, not all of the
1301 memory can be "permanently mapped" by the kernel. The physical
1302 memory that is not permanently mapped is called "high memory".
1303
1304 Depending on the selected kernel/user memory split, minimum
1305 vmalloc space and actual amount of RAM, you may not need this
1306 option which should result in a slightly faster kernel.
1307
1308 If unsure, say n.
1309
Russell King65cec8e2009-08-17 20:02:06 +01001310config HIGHPTE
1311 bool "Allocate 2nd-level pagetables from highmem"
1312 depends on HIGHMEM
1313 depends on !OUTER_CACHE
1314
Jamie Iles1b8873a2010-02-02 20:25:44 +01001315config HW_PERF_EVENTS
1316 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001317 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001318 default y
1319 help
1320 Enable hardware performance counter support for perf events. If
1321 disabled, perf events will use software events only.
1322
Dave Hansen3f22ab22005-06-23 00:07:43 -07001323source "mm/Kconfig"
1324
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325config LEDS
1326 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001327 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001328 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1330 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001331 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001332 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001333 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 help
1335 If you say Y here, the LEDs on your machine will be used
1336 to provide useful information about your current system status.
1337
1338 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1339 be able to select which LEDs are active using the options below. If
1340 you are compiling a kernel for the EBSA-110 or the LART however, the
1341 red LED will simply flash regularly to indicate that the system is
1342 still functional. It is safe to say Y here if you have a CATS
1343 system, but the driver will do nothing.
1344
1345config LEDS_TIMER
1346 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001347 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1348 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001350 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351 default y if ARCH_EBSA110
1352 help
1353 If you say Y here, one of the system LEDs (the green one on the
1354 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1355 will flash regularly to indicate that the system is still
1356 operational. This is mainly useful to kernel hackers who are
1357 debugging unstable kernels.
1358
1359 The LART uses the same LED for both Timer LED and CPU usage LED
1360 functions. You may choose to use both, but the Timer LED function
1361 will overrule the CPU usage LED.
1362
1363config LEDS_CPU
1364 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001365 !ARCH_OMAP) \
1366 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1367 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 depends on LEDS
1369 help
1370 If you say Y here, the red LED will be used to give a good real
1371 time indication of CPU usage, by lighting whenever the idle task
1372 is not currently executing.
1373
1374 The LART uses the same LED for both Timer LED and CPU usage LED
1375 functions. You may choose to use both, but the Timer LED function
1376 will overrule the CPU usage LED.
1377
1378config ALIGNMENT_TRAP
1379 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001380 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001382 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001384 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1386 address divisible by 4. On 32-bit ARM processors, these non-aligned
1387 fetch/store instructions will be emulated in software if you say
1388 here, which has a severe performance impact. This is necessary for
1389 correct operation of some network protocols. With an IP-only
1390 configuration it is safe to say N, otherwise say Y.
1391
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001392config UACCESS_WITH_MEMCPY
1393 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1394 depends on MMU && EXPERIMENTAL
1395 default y if CPU_FEROCEON
1396 help
1397 Implement faster copy_to_user and clear_user methods for CPU
1398 cores where a 8-word STM instruction give significantly higher
1399 memory write throughput than a sequence of individual 32bit stores.
1400
1401 A possible side effect is a slight increase in scheduling latency
1402 between threads sharing the same address space if they invoke
1403 such copy operations with large buffers.
1404
1405 However, if the CPU data cache is using a write-allocate mode,
1406 this option is unlikely to provide any performance gain.
1407
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408endmenu
1409
1410menu "Boot options"
1411
1412# Compressed boot loader in ROM. Yes, we really want to ask about
1413# TEXT and BSS so we preserve their values in the config files.
1414config ZBOOT_ROM_TEXT
1415 hex "Compressed ROM boot loader base address"
1416 default "0"
1417 help
1418 The physical address at which the ROM-able zImage is to be
1419 placed in the target. Platforms which normally make use of
1420 ROM-able zImage formats normally set this to a suitable
1421 value in their defconfig file.
1422
1423 If ZBOOT_ROM is not enabled, this has no effect.
1424
1425config ZBOOT_ROM_BSS
1426 hex "Compressed ROM boot loader BSS address"
1427 default "0"
1428 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001429 The base address of an area of read/write memory in the target
1430 for the ROM-able zImage which must be available while the
1431 decompressor is running. It must be large enough to hold the
1432 entire decompressed kernel plus an additional 128 KiB.
1433 Platforms which normally make use of ROM-able zImage formats
1434 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435
1436 If ZBOOT_ROM is not enabled, this has no effect.
1437
1438config ZBOOT_ROM
1439 bool "Compressed boot loader in ROM/flash"
1440 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1441 help
1442 Say Y here if you intend to execute your compressed kernel image
1443 (zImage) directly from ROM or flash. If unsure, say N.
1444
1445config CMDLINE
1446 string "Default kernel command string"
1447 default ""
1448 help
1449 On some architectures (EBSA110 and CATS), there is currently no way
1450 for the boot loader to pass arguments to the kernel. For these
1451 architectures, you should supply some command-line options at build
1452 time by entering them here. As a minimum, you should specify the
1453 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1454
1455config XIP_KERNEL
1456 bool "Kernel Execute-In-Place from ROM"
1457 depends on !ZBOOT_ROM
1458 help
1459 Execute-In-Place allows the kernel to run from non-volatile storage
1460 directly addressable by the CPU, such as NOR flash. This saves RAM
1461 space since the text section of the kernel is not loaded from flash
1462 to RAM. Read-write sections, such as the data section and stack,
1463 are still copied to RAM. The XIP kernel is not compressed since
1464 it has to run directly from flash, so it will take more space to
1465 store it. The flash address used to link the kernel object files,
1466 and for storing it, is configuration dependent. Therefore, if you
1467 say Y here, you must know the proper physical address where to
1468 store the kernel image depending on your own flash memory usage.
1469
1470 Also note that the make target becomes "make xipImage" rather than
1471 "make zImage" or "make Image". The final kernel binary to put in
1472 ROM memory will be arch/arm/boot/xipImage.
1473
1474 If unsure, say N.
1475
1476config XIP_PHYS_ADDR
1477 hex "XIP Kernel Physical Location"
1478 depends on XIP_KERNEL
1479 default "0x00080000"
1480 help
1481 This is the physical address in your flash memory the kernel will
1482 be linked for and stored to. This address is dependent on your
1483 own flash usage.
1484
Richard Purdiec587e4a2007-02-06 21:29:00 +01001485config KEXEC
1486 bool "Kexec system call (EXPERIMENTAL)"
1487 depends on EXPERIMENTAL
1488 help
1489 kexec is a system call that implements the ability to shutdown your
1490 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001491 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001492 you can start any kernel with it, not just Linux.
1493
1494 It is an ongoing process to be certain the hardware in a machine
1495 is properly shutdown, so do not be surprised if this code does not
1496 initially work for you. It may help to enable device hotplugging
1497 support.
1498
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001499config ATAGS_PROC
1500 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001501 depends on KEXEC
1502 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001503 help
1504 Should the atags used to boot the kernel be exported in an "atags"
1505 file in procfs. Useful with kexec.
1506
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507endmenu
1508
Russell Kingac9d7ef2008-08-18 17:26:00 +01001509menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001510
Ben Dooks89c52ed2009-07-30 23:23:24 +01001511if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512
1513source "drivers/cpufreq/Kconfig"
1514
1515config CPU_FREQ_SA1100
1516 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517
1518config CPU_FREQ_SA1110
1519 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001520
1521config CPU_FREQ_INTEGRATOR
1522 tristate "CPUfreq driver for ARM Integrator CPUs"
1523 depends on ARCH_INTEGRATOR && CPU_FREQ
1524 default y
1525 help
1526 This enables the CPUfreq driver for ARM Integrator CPUs.
1527
1528 For details, take a look at <file:Documentation/cpu-freq>.
1529
1530 If in doubt, say Y.
1531
Russell King9e2697f2007-12-14 13:30:14 +00001532config CPU_FREQ_PXA
1533 bool
1534 depends on CPU_FREQ && ARCH_PXA && PXA25x
1535 default y
1536 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1537
Mark Brownb3748dd2009-06-15 11:23:20 +01001538config CPU_FREQ_S3C64XX
1539 bool "CPUfreq support for Samsung S3C64XX CPUs"
1540 depends on CPU_FREQ && CPU_S3C6410
1541
Ben Dooks9d56c022009-07-30 23:23:25 +01001542config CPU_FREQ_S3C
1543 bool
1544 help
1545 Internal configuration node for common cpufreq on Samsung SoC
1546
1547config CPU_FREQ_S3C24XX
1548 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1549 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1550 select CPU_FREQ_S3C
1551 help
1552 This enables the CPUfreq driver for the Samsung S3C24XX family
1553 of CPUs.
1554
1555 For details, take a look at <file:Documentation/cpu-freq>.
1556
1557 If in doubt, say N.
1558
1559config CPU_FREQ_S3C24XX_PLL
1560 bool "Support CPUfreq changing of PLL frequency"
1561 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1562 help
1563 Compile in support for changing the PLL frequency from the
1564 S3C24XX series CPUfreq driver. The PLL takes time to settle
1565 after a frequency change, so by default it is not enabled.
1566
1567 This also means that the PLL tables for the selected CPU(s) will
1568 be built which may increase the size of the kernel image.
1569
1570config CPU_FREQ_S3C24XX_DEBUG
1571 bool "Debug CPUfreq Samsung driver core"
1572 depends on CPU_FREQ_S3C24XX
1573 help
1574 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1575
1576config CPU_FREQ_S3C24XX_IODEBUG
1577 bool "Debug CPUfreq Samsung driver IO timing"
1578 depends on CPU_FREQ_S3C24XX
1579 help
1580 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1581
Ben Dookse6d197a2009-07-30 23:23:42 +01001582config CPU_FREQ_S3C24XX_DEBUGFS
1583 bool "Export debugfs for CPUFreq"
1584 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1585 help
1586 Export status information via debugfs.
1587
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588endif
1589
Russell Kingac9d7ef2008-08-18 17:26:00 +01001590source "drivers/cpuidle/Kconfig"
1591
1592endmenu
1593
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594menu "Floating point emulation"
1595
1596comment "At least one emulation must be selected"
1597
1598config FPE_NWFPE
1599 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001600 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601 ---help---
1602 Say Y to include the NWFPE floating point emulator in the kernel.
1603 This is necessary to run most binaries. Linux does not currently
1604 support floating point hardware so you need to say Y here even if
1605 your machine has an FPA or floating point co-processor podule.
1606
1607 You may say N here if you are going to load the Acorn FPEmulator
1608 early in the bootup.
1609
1610config FPE_NWFPE_XP
1611 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001612 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613 help
1614 Say Y to include 80-bit support in the kernel floating-point
1615 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1616 Note that gcc does not generate 80-bit operations by default,
1617 so in most cases this option only enlarges the size of the
1618 floating point emulator without any good reason.
1619
1620 You almost surely want to say N here.
1621
1622config FPE_FASTFPE
1623 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001624 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625 ---help---
1626 Say Y here to include the FAST floating point emulator in the kernel.
1627 This is an experimental much faster emulator which now also has full
1628 precision for the mantissa. It does not support any exceptions.
1629 It is very simple, and approximately 3-6 times faster than NWFPE.
1630
1631 It should be sufficient for most programs. It may be not suitable
1632 for scientific calculations, but you have to check this for yourself.
1633 If you do not feel you need a faster FP emulation you should better
1634 choose NWFPE.
1635
1636config VFP
1637 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001638 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 help
1640 Say Y to include VFP support code in the kernel. This is needed
1641 if your hardware includes a VFP unit.
1642
1643 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1644 release notes and additional status information.
1645
1646 Say N if your target does not have VFP hardware.
1647
Catalin Marinas25ebee02007-09-25 15:22:24 +01001648config VFPv3
1649 bool
1650 depends on VFP
1651 default y if CPU_V7
1652
Catalin Marinasb5872db2008-01-10 19:16:17 +01001653config NEON
1654 bool "Advanced SIMD (NEON) Extension support"
1655 depends on VFPv3 && CPU_V7
1656 help
1657 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1658 Extension.
1659
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660endmenu
1661
1662menu "Userspace binary formats"
1663
1664source "fs/Kconfig.binfmt"
1665
1666config ARTHUR
1667 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001668 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669 help
1670 Say Y here to include the kernel code necessary if you want to run
1671 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1672 experimental; if this sounds frightening, say N and sleep in peace.
1673 You can also say M here to compile this support as a module (which
1674 will be called arthur).
1675
1676endmenu
1677
1678menu "Power management options"
1679
Russell Kingeceab4a2005-11-15 11:31:41 +00001680source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001681
Johannes Bergf4cb5702007-12-08 02:14:00 +01001682config ARCH_SUSPEND_POSSIBLE
1683 def_bool y
1684
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685endmenu
1686
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001687source "net/Kconfig"
1688
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001689source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690
1691source "fs/Kconfig"
1692
Linus Torvalds1da177e2005-04-16 15:20:36 -07001693source "arch/arm/Kconfig.debug"
1694
1695source "security/Kconfig"
1696
1697source "crypto/Kconfig"
1698
1699source "lib/Kconfig"