blob: 572e6cc2b2f68fc0670f43219d986dd9f4e720a9 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050016 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 help
27 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000028 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000030 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 Europe. There is an ARM Linux project with a web page at
32 <http://www.arm.linux.org.uk/>.
33
Russell King1a189b92008-04-13 21:41:55 +010034config HAVE_PWM
35 bool
36
Ralf Baechle75e71532007-02-09 17:08:58 +000037config SYS_SUPPORTS_APM_EMULATION
38 bool
39
David Brownell0a938b92007-03-05 00:30:18 -080040config GENERIC_GPIO
41 bool
David Brownell0a938b92007-03-05 00:30:18 -080042
Kevin Hilman746140c2006-09-22 00:16:30 +010043config GENERIC_TIME
44 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010045
Kevin Hilman0567a0c2007-03-13 20:29:24 +010046config GENERIC_CLOCKEVENTS
47 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010048
Catalin Marinasa8655e82008-02-04 17:30:57 +010049config GENERIC_CLOCKEVENTS_BROADCAST
50 bool
51 depends on GENERIC_CLOCKEVENTS
52 default y if SMP && !LOCAL_TIMERS
53
Linus Walleijbc581772009-09-15 17:30:37 +010054config HAVE_TCM
55 bool
56 select GENERIC_ALLOCATOR
57
Russell Kinge119bff2010-01-10 17:23:29 +000058config HAVE_PROC_CPU
59 bool
60
Al Viro5ea81762007-02-11 15:41:31 +000061config NO_IOPORT
62 bool
Al Viro5ea81762007-02-11 15:41:31 +000063
Linus Torvalds1da177e2005-04-16 15:20:36 -070064config EISA
65 bool
66 ---help---
67 The Extended Industry Standard Architecture (EISA) bus was
68 developed as an open alternative to the IBM MicroChannel bus.
69
70 The EISA bus provided some of the features of the IBM MicroChannel
71 bus while maintaining backward compatibility with cards made for
72 the older ISA bus. The EISA bus saw limited use between 1988 and
73 1995 when it was made obsolete by the PCI bus.
74
75 Say Y here if you are building a kernel for an EISA-based machine.
76
77 Otherwise, say N.
78
79config SBUS
80 bool
81
82config MCA
83 bool
84 help
85 MicroChannel Architecture is found in some IBM PS/2 machines and
86 laptops. It is a bus system similar to PCI or ISA. See
87 <file:Documentation/mca.txt> (and especially the web page given
88 there) before attempting to build an MCA bus kernel.
89
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010090config GENERIC_HARDIRQS
91 bool
92 default y
93
Russell Kingf16fb1e2007-04-28 09:59:37 +010094config STACKTRACE_SUPPORT
95 bool
96 default y
97
Nicolas Pitref76e9152008-04-24 01:31:46 -040098config HAVE_LATENCYTOP_SUPPORT
99 bool
100 depends on !SMP
101 default y
102
Russell Kingf16fb1e2007-04-28 09:59:37 +0100103config LOCKDEP_SUPPORT
104 bool
105 default y
106
Russell King7ad1bcb2006-08-27 12:07:02 +0100107config TRACE_IRQFLAGS_SUPPORT
108 bool
109 default y
110
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100111config HARDIRQS_SW_RESEND
112 bool
113 default y
114
115config GENERIC_IRQ_PROBE
116 bool
117 default y
118
Nick Piggin95c354f2008-01-30 13:31:20 +0100119config GENERIC_LOCKBREAK
120 bool
121 default y
122 depends on SMP && PREEMPT
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124config RWSEM_GENERIC_SPINLOCK
125 bool
126 default y
127
128config RWSEM_XCHGADD_ALGORITHM
129 bool
130
David Howellsf0d1b0b2006-12-08 02:37:49 -0800131config ARCH_HAS_ILOG2_U32
132 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800133
134config ARCH_HAS_ILOG2_U64
135 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136
Ben Dooks89c52ed2009-07-30 23:23:24 +0100137config ARCH_HAS_CPUFREQ
138 bool
139 help
140 Internal node to signify that the ARCH has CPUFREQ support
141 and that the relevant menu configurations are displayed for
142 it.
143
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800144config GENERIC_HWEIGHT
145 bool
146 default y
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148config GENERIC_CALIBRATE_DELAY
149 bool
150 default y
151
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100152config ARCH_MAY_HAVE_PC_FDC
153 bool
154
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800155config ZONE_DMA
156 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800157
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800158config NEED_DMA_MAP_STATE
159 def_bool y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config GENERIC_ISA_DMA
162 bool
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config FIQ
165 bool
166
Al Viro034d2f52005-12-19 16:27:59 -0500167config ARCH_MTD_XIP
168 bool
169
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100170config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100171 def_bool y
172
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100173config ARM_L1_CACHE_SHIFT_6
174 bool
175 help
176 Setting ARM L1 cache line size to 64 Bytes.
177
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500178if OPROFILE
179
180config OPROFILE_ARMV6
181 def_bool y
182 depends on CPU_V6 && !SMP
183 select OPROFILE_ARM11_CORE
184
185config OPROFILE_MPCORE
186 def_bool y
187 depends on CPU_V6 && SMP
188 select OPROFILE_ARM11_CORE
189
190config OPROFILE_ARM11_CORE
191 bool
192
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100193config OPROFILE_ARMV7
194 def_bool y
195 depends on CPU_V7 && !SMP
196 bool
197
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500198endif
199
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200config VECTORS_BASE
201 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900202 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100203 default DRAM_BASE if REMAP_VECTORS_TO_RAM
204 default 0x00000000
205 help
206 The base address of exception vectors.
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208source "init/Kconfig"
209
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700210source "kernel/Kconfig.freezer"
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212menu "System Type"
213
Hyok S. Choi3c427972009-07-24 12:35:00 +0100214config MMU
215 bool "MMU-based Paged Memory Management Support"
216 default y
217 help
218 Select if you want MMU-based virtualised addressing space
219 support by paged memory management. If unsure, say 'Y'.
220
Russell Kingccf50e22010-03-15 19:03:06 +0000221#
222# The "ARM system type" choice list is ordered alphabetically by option
223# text. Please add new entries in the option alphabetic order.
224#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225choice
226 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000227 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229config ARCH_AAEC2000
230 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000231 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 help
235 This enables support for systems based on the Agilent AAEC-2000
236
237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700241 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000242 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100243 select ICST525
244 help
245 Support for ARM's Integrator platform.
246
247config ARCH_REALVIEW
248 bool "ARM Ltd. RealView family"
249 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700250 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000251 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100252 select ICST307
Catalin Marinas85802af2008-02-04 17:24:54 +0100253 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100256 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257 help
258 This enables support for ARM Ltd RealView boards.
259
260config ARCH_VERSATILE
261 bool "ARM Ltd. Versatile family"
262 select ARM_AMBA
263 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700264 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000265 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100266 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100267 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100268 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100269 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100270 help
271 This enables support for ARM Ltd Versatile board.
272
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100273config ARCH_AT91
274 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800275 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100276 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700277 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100278 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100279 This enables support for systems based on the Atmel AT91RM9200,
280 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281
Russell Kingccf50e22010-03-15 19:03:06 +0000282config ARCH_BCMRING
283 bool "Broadcom BCMRING"
284 depends on MMU
285 select CPU_V6
286 select ARM_AMBA
287 select COMMON_CLKDEV
288 select GENERIC_TIME
289 select GENERIC_CLOCKEVENTS
290 select ARCH_WANT_OPTIONAL_GPIOLIB
291 help
292 Support for Broadcom's BCMRing platform.
293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100295 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000296 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000297 help
298 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300300config ARCH_CNS3XXX
301 bool "Cavium Networks CNS3XXX family"
302 select CPU_V6
303 select GENERIC_TIME
304 select GENERIC_CLOCKEVENTS
305 select ARM_GIC
306 help
307 Support for Cavium Networks CNS3XXX platform.
308
Russell King788c9702009-04-26 14:21:59 +0100309config ARCH_GEMINI
310 bool "Cortina Systems Gemini"
311 select CPU_FA526
312 select GENERIC_GPIO
313 select ARCH_REQUIRE_GPIOLIB
314 help
315 Support for the Cortina Systems Gemini family SoCs
316
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317config ARCH_EBSA110
318 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000319 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100320 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000321 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 help
323 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000324 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 Ethernet interface, two PCMCIA sockets, two serial ports and a
326 parallel port.
327
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328config ARCH_EP93XX
329 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000330 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000331 select ARM_AMBA
332 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100333 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700334 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000335 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700336 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100337 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000338 help
339 This enables support for the Cirrus EP93xx series of CPUs.
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341config ARCH_FOOTBRIDGE
342 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000343 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000345 help
346 Support for systems based on the DC21285 companion chip
347 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348
Russell King788c9702009-04-26 14:21:59 +0100349config ARCH_MXC
350 bool "Freescale MXC/iMX-based"
351 select GENERIC_TIME
352 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100353 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100354 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100355 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100356 help
357 Support for Freescale MXC/iMX-based family of processors
358
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359config ARCH_STMP3XXX
360 bool "Freescale STMP3xxx"
361 select CPU_ARM926T
362 select HAVE_CLK
363 select COMMON_CLKDEV
364 select ARCH_REQUIRE_GPIOLIB
365 select GENERIC_TIME
366 select GENERIC_CLOCKEVENTS
367 select GENERIC_GPIO
368 select USB_ARCH_HAS_EHCI
369 help
370 Support for systems based on the Freescale 3xxx CPUs.
371
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372config ARCH_NETX
373 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000374 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100376 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100377 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000378 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100379 This enables support for systems based on the Hilscher NetX Soc
380
381config ARCH_H720X
382 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100384 select ISA_DMA_API
385 help
386 This enables support for systems based on the Hynix HMS720x
387
Russell King3b938be2007-05-12 11:25:44 +0100388config ARCH_IOP13XX
389 bool "IOP13xx-based"
390 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000391 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100392 select PLAT_IOP
393 select PCI
394 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100395 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100396 help
397 Support for Intel's IOP13XX (XScale) family of processors.
398
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100399config ARCH_IOP32X
400 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100401 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000402 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100403 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100404 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100405 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100406 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000407 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100408 Support for Intel's 80219 and IOP32X (XScale) family of
409 processors.
410
411config ARCH_IOP33X
412 bool "IOP33x-based"
413 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000414 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100415 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100416 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100417 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100418 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100419 help
420 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421
Russell King3b938be2007-05-12 11:25:44 +0100422config ARCH_IXP23XX
423 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100424 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100426 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100427 help
Russell King3b938be2007-05-12 11:25:44 +0100428 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
430config ARCH_IXP2000
431 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100432 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000433 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100434 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000435 help
436 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
Russell King3b938be2007-05-12 11:25:44 +0100438config ARCH_IXP4XX
439 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100440 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000441 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100442 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100443 select GENERIC_TIME
444 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100445 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100446 help
Russell King3b938be2007-05-12 11:25:44 +0100447 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100448
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449config ARCH_L7200
450 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 select FIQ
453 help
454 Say Y here if you intend to run this kernel on a LinkUp Systems
455 L7200 Software Development Board which uses an ARM720T processor.
456 Information on this board can be obtained at:
457
458 <http://www.linkupsys.com/>
459
460 If you have any questions or comments about the Linux kernel port
461 to this board, send e-mail to <sjhill@cotw.com>.
462
Saeed Bisharaedabd382009-08-06 15:12:43 +0300463config ARCH_DOVE
464 bool "Marvell Dove"
465 select PCI
466 select GENERIC_GPIO
467 select ARCH_REQUIRE_GPIOLIB
468 select GENERIC_TIME
469 select GENERIC_CLOCKEVENTS
470 select PLAT_ORION
471 help
472 Support for the Marvell Dove SoC 88AP510
473
Saeed Bishara651c74c2008-06-22 22:45:06 +0200474config ARCH_KIRKWOOD
475 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200477 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200478 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700479 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200480 select GENERIC_TIME
481 select GENERIC_CLOCKEVENTS
482 select PLAT_ORION
483 help
484 Support for the following Marvell Kirkwood series SoCs:
485 88F6180, 88F6192 and 88F6281.
486
Russell King788c9702009-04-26 14:21:59 +0100487config ARCH_LOKI
488 bool "Marvell Loki (88RC8480)"
489 select CPU_FEROCEON
490 select GENERIC_TIME
491 select GENERIC_CLOCKEVENTS
492 select PLAT_ORION
493 help
494 Support for the Marvell Loki (88RC8480) SoC.
495
496config ARCH_MV78XX0
497 bool "Marvell MV78xx0"
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 MV78xx0 series SoCs:
507 MV781x0, MV782x0.
508
509config ARCH_ORION5X
510 bool "Marvell Orion"
511 depends on MMU
512 select CPU_FEROCEON
513 select PCI
514 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700515 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100516 select GENERIC_TIME
517 select GENERIC_CLOCKEVENTS
518 select PLAT_ORION
519 help
520 Support for the following Marvell Orion 5x series SoCs:
521 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
522 Orion-2 (5281), Orion-1-90 (6183).
523
524config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500525 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100526 depends on MMU
527 select GENERIC_GPIO
528 select ARCH_REQUIRE_GPIOLIB
529 select HAVE_CLK
530 select COMMON_CLKDEV
531 select GENERIC_TIME
532 select GENERIC_CLOCKEVENTS
533 select TICK_ONESHOT
534 select PLAT_PXA
535 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500536 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100537
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100538config ARCH_KS8695
539 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000540 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100541 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000542 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100543 help
544 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
545 System-on-Chip devices.
546
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100547config ARCH_NS9XXX
548 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000549 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100550 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100551 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100552 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700553 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100554 help
555 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
556 System.
557
558 <http://www.digi.com/products/microprocessors/index.jsp>
559
Russell King788c9702009-04-26 14:21:59 +0100560config ARCH_W90X900
561 bool "Nuvoton W90X900 CPU"
562 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100563 select ARCH_REQUIRE_GPIOLIB
564 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100565 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100566 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_TIME
568 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200569 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100570 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
571 At present, the w90x900 has been renamed nuc900, regarding
572 the ARM series product line, you can login the following
573 link address to know more.
574
575 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
576 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400577
wanzongshuna62e9032009-12-31 15:06:05 +0100578config ARCH_NUC93X
579 bool "Nuvoton NUC93X CPU"
580 select CPU_ARM926T
581 select HAVE_CLK
582 select COMMON_CLKDEV
583 help
584 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
585 low-power and high performance MPEG-4/JPEG multimedia controller chip.
586
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100587config ARCH_PNX4008
588 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000589 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700590 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000591 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100592 help
593 This enables support for Philips PNX4008 mobile platform.
594
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700596 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100597 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500598 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100599 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800600 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700601 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000602 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700603 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100604 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100605 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000606 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800607 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000608 help
eric miao2c8086a2007-09-11 19:13:17 -0700609 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610
Russell King788c9702009-04-26 14:21:59 +0100611config ARCH_MSM
612 bool "Qualcomm MSM"
613 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800614 select GENERIC_TIME
615 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800616 help
Russell King788c9702009-04-26 14:21:59 +0100617 Support for Qualcomm MSM7K based systems. This runs on the ARM11
618 apps processor of the MSM7K and depends on a shared memory
619 interface to the ARM9 modem processor which runs the baseband stack
620 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800621
Magnus Dammc793c1b2010-02-05 11:14:49 +0000622config ARCH_SHMOBILE
623 bool "Renesas SH-Mobile"
624 help
625 Support for Renesas's SH-Mobile ARM platforms
626
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627config ARCH_RPC
628 bool "RiscPC"
629 select ARCH_ACORN
630 select FIQ
631 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100632 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100633 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000634 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000635 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100636 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 help
638 On the Acorn Risc-PC, Linux can support the internal IDE disk and
639 CD-ROM interface, serial and parallel port, and the floppy drive.
640
641config ARCH_SA1100
642 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000643 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100644 select ISA
Russell King05944d72006-11-30 20:43:51 +0000645 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500646 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100647 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000648 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800649 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000650 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100651 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700652 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100653 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700654 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000655 help
656 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657
658config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100659 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800660 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100661 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700662 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 help
664 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
665 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000666 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
Ben Dooksa08ab632008-10-21 14:06:39 +0100668config ARCH_S3C64XX
669 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000670 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900671 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100672 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900673 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100674 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900675 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100676 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900677 select ARCH_REQUIRE_GPIOLIB
678 select SAMSUNG_CLKSRC
679 select SAMSUNG_IRQ_VIC_TIMER
680 select SAMSUNG_IRQ_UART
681 select S3C_GPIO_TRACK
682 select S3C_GPIO_PULL_UPDOWN
683 select S3C_GPIO_CFG_S3C24XX
684 select S3C_GPIO_CFG_S3C64XX
685 select S3C_DEV_NAND
686 select USB_ARCH_HAS_OHCI
687 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100688 help
689 Samsung S3C64XX series based systems
690
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900691config ARCH_S5P6440
692 bool "Samsung S5P6440"
693 select CPU_V6
694 select GENERIC_GPIO
695 select HAVE_CLK
696 help
697 Samsung S5P6440 CPU based systems
698
Kukjin Kim550db7f2010-01-29 10:19:26 +0900699config ARCH_S5P6442
700 bool "Samsung S5P6442"
701 select CPU_V6
702 select GENERIC_GPIO
703 select HAVE_CLK
704 help
705 Samsung S5P6442 CPU based systems
706
Byungho Min5a7652f2009-06-23 21:39:42 +0900707config ARCH_S5PC1XX
708 bool "Samsung S5PC1XX"
709 select GENERIC_GPIO
710 select HAVE_CLK
711 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100712 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900713 help
714 Samsung S5PC1XX series based systems
715
Kukjin Kim170f4e42010-02-24 16:40:44 +0900716config ARCH_S5PV210
717 bool "Samsung S5PV210/S5PC110"
718 select CPU_V7
719 select GENERIC_GPIO
720 select HAVE_CLK
721 select ARM_L1_CACHE_SHIFT_6
722 help
723 Samsung S5PV210/S5PC110 series based systems
724
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725config ARCH_SHARK
726 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000727 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100728 select ISA
729 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100730 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100731 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000732 help
733 Support for the StrongARM based Digital DNARD machine, also known
734 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735
736config ARCH_LH7A40X
737 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000738 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100739 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
740 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 help
742 Say Y here for systems based on one of the Sharp LH7A40X
743 System on a Chip processors. These CPUs include an ARM922T
744 core with a wide array of integrated devices for
745 hand-held and low-power applications.
746
Linus Walleijd98aac72009-04-27 10:21:46 +0100747config ARCH_U300
748 bool "ST-Ericsson U300 Series"
749 depends on MMU
750 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100751 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100752 select ARM_AMBA
753 select ARM_VIC
754 select GENERIC_TIME
755 select GENERIC_CLOCKEVENTS
756 select HAVE_CLK
757 select COMMON_CLKDEV
758 select GENERIC_GPIO
759 help
760 Support for ST-Ericsson U300 series mobile platforms.
761
Russell Kingccf50e22010-03-15 19:03:06 +0000762config ARCH_U8500
763 bool "ST-Ericsson U8500 Series"
764 select CPU_V7
765 select ARM_AMBA
766 select GENERIC_TIME
767 select GENERIC_CLOCKEVENTS
768 select COMMON_CLKDEV
769 help
770 Support for ST-Ericsson's Ux500 architecture
771
772config ARCH_NOMADIK
773 bool "STMicroelectronics Nomadik"
774 select ARM_AMBA
775 select ARM_VIC
776 select CPU_ARM926T
777 select HAVE_CLK
778 select COMMON_CLKDEV
779 select GENERIC_TIME
780 select GENERIC_CLOCKEVENTS
781 select GENERIC_GPIO
782 select ARCH_REQUIRE_GPIOLIB
783 help
784 Support for the Nomadik platform by ST-Ericsson
785
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100786config ARCH_DAVINCI
787 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000788 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100789 select GENERIC_TIME
790 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100791 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700792 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700793 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100794 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700795 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700796 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700797 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530798 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100799 help
800 Support for TI's DaVinci platform.
801
Russell King3b938be2007-05-12 11:25:44 +0100802config ARCH_OMAP
803 bool "TI OMAP"
804 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700805 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700806 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100807 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100808 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700809 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800810 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100811 help
812 Support for TI's OMAP platform (OMAP1 and OMAP2).
813
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814endchoice
815
Russell Kingccf50e22010-03-15 19:03:06 +0000816#
817# This is sorted alphabetically by mach-* pathname. However, plat-*
818# Kconfigs may be included either alphabetically (according to the
819# plat- suffix) or along side the corresponding mach-* source.
820#
Russell King95b8f202010-01-14 11:43:54 +0000821source "arch/arm/mach-aaec2000/Kconfig"
822
823source "arch/arm/mach-at91/Kconfig"
824
825source "arch/arm/mach-bcmring/Kconfig"
826
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827source "arch/arm/mach-clps711x/Kconfig"
828
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300829source "arch/arm/mach-cns3xxx/Kconfig"
830
Russell King95b8f202010-01-14 11:43:54 +0000831source "arch/arm/mach-davinci/Kconfig"
832
833source "arch/arm/mach-dove/Kconfig"
834
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000835source "arch/arm/mach-ep93xx/Kconfig"
836
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837source "arch/arm/mach-footbridge/Kconfig"
838
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200839source "arch/arm/mach-gemini/Kconfig"
840
Russell King95b8f202010-01-14 11:43:54 +0000841source "arch/arm/mach-h720x/Kconfig"
842
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843source "arch/arm/mach-integrator/Kconfig"
844
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100845source "arch/arm/mach-iop32x/Kconfig"
846
847source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848
Dan Williams285f5fa2006-12-07 02:59:39 +0100849source "arch/arm/mach-iop13xx/Kconfig"
850
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851source "arch/arm/mach-ixp4xx/Kconfig"
852
853source "arch/arm/mach-ixp2000/Kconfig"
854
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100855source "arch/arm/mach-ixp23xx/Kconfig"
856
Russell King95b8f202010-01-14 11:43:54 +0000857source "arch/arm/mach-kirkwood/Kconfig"
858
859source "arch/arm/mach-ks8695/Kconfig"
860
861source "arch/arm/mach-lh7a40x/Kconfig"
862
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200863source "arch/arm/mach-loki/Kconfig"
864
Russell King95b8f202010-01-14 11:43:54 +0000865source "arch/arm/mach-msm/Kconfig"
866
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200867source "arch/arm/mach-mv78xx0/Kconfig"
868
Russell King95b8f202010-01-14 11:43:54 +0000869source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
Russell King95b8f202010-01-14 11:43:54 +0000871source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800872
Russell King95b8f202010-01-14 11:43:54 +0000873source "arch/arm/mach-nomadik/Kconfig"
874source "arch/arm/plat-nomadik/Kconfig"
875
876source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877
Russell Kingd91a89102010-02-04 18:13:17 +0000878source "arch/arm/mach-nuc93x/Kconfig"
879
Tony Lindgrend48af152005-07-10 19:58:17 +0100880source "arch/arm/plat-omap/Kconfig"
881
882source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
Tony Lindgren1dbae812005-11-10 14:26:51 +0000884source "arch/arm/mach-omap2/Kconfig"
885
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400886source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400887
Russell King95b8f202010-01-14 11:43:54 +0000888source "arch/arm/mach-pxa/Kconfig"
889source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
Russell King95b8f202010-01-14 11:43:54 +0000891source "arch/arm/mach-mmp/Kconfig"
892
893source "arch/arm/mach-realview/Kconfig"
894
895source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300896
Ben Dookscf383672009-11-10 00:14:58 +0000897source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100898source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900899source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900900source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100901
902if ARCH_S3C2410
903source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100905source "arch/arm/mach-s3c2412/Kconfig"
906source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100907source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100908endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909
Ben Dooksa08ab632008-10-21 14:06:39 +0100910if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900911source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100912endif
913
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900914source "arch/arm/mach-s5p6440/Kconfig"
915
Kukjin Kim550db7f2010-01-29 10:19:26 +0900916source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100917
Byungho Min5a7652f2009-06-23 21:39:42 +0900918if ARCH_S5PC1XX
919source "arch/arm/mach-s5pc100/Kconfig"
920endif
921
Kukjin Kim170f4e42010-02-24 16:40:44 +0900922source "arch/arm/mach-s5pv210/Kconfig"
923
Russell King882d01f2010-03-02 23:40:15 +0000924source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Russell King882d01f2010-03-02 23:40:15 +0000926source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
932source "arch/arm/mach-versatile/Kconfig"
933
wanzongshun7ec80dd2008-12-03 03:55:38 +0100934source "arch/arm/mach-w90x900/Kconfig"
935
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936# Definitions to make life easier
937config ARCH_ACORN
938 bool
939
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100940config PLAT_IOP
941 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700942 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700943 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100944
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400945config PLAT_ORION
946 bool
947
Eric Miaobd5ce432009-01-20 12:06:01 +0800948config PLAT_PXA
949 bool
950
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951source arch/arm/mm/Kconfig
952
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100953config IWMMXT
954 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800955 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
956 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100957 help
958 Enable support for iWMMXt context switching at run time if
959 running on a CPU that supports it.
960
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
962config XSCALE_PMU
963 bool
964 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
965 default y
966
Jamie Iles0f4f0672010-02-02 20:23:15 +0100967config CPU_HAS_PMU
968 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
969 default y
970 bool
971
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100972if !MMU
973source "arch/arm/Kconfig-nommu"
974endif
975
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100976config ARM_ERRATA_411920
977 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
978 depends on CPU_V6 && !SMP
979 help
980 Invalidation of the Instruction Cache operation can
981 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
982 It does not affect the MPCore. This option enables the ARM Ltd.
983 recommended workaround.
984
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100985config ARM_ERRATA_430973
986 bool "ARM errata: Stale prediction on replaced interworking branch"
987 depends on CPU_V7
988 help
989 This option enables the workaround for the 430973 Cortex-A8
990 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
991 interworking branch is replaced with another code sequence at the
992 same virtual address, whether due to self-modifying code or virtual
993 to physical address re-mapping, Cortex-A8 does not recover from the
994 stale interworking branch prediction. This results in Cortex-A8
995 executing the new code sequence in the incorrect ARM or Thumb state.
996 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
997 and also flushes the branch target cache at every context switch.
998 Note that setting specific bits in the ACTLR register may not be
999 available in non-secure mode.
1000
Catalin Marinas855c5512009-04-30 17:06:15 +01001001config ARM_ERRATA_458693
1002 bool "ARM errata: Processor deadlock when a false hazard is created"
1003 depends on CPU_V7
1004 help
1005 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1006 erratum. For very specific sequences of memory operations, it is
1007 possible for a hazard condition intended for a cache line to instead
1008 be incorrectly associated with a different cache line. This false
1009 hazard might then cause a processor deadlock. The workaround enables
1010 the L1 caching of the NEON accesses and disables the PLD instruction
1011 in the ACTLR register. Note that setting specific bits in the ACTLR
1012 register may not be available in non-secure mode.
1013
Catalin Marinas0516e462009-04-30 17:06:20 +01001014config ARM_ERRATA_460075
1015 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1016 depends on CPU_V7
1017 help
1018 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1019 erratum. Any asynchronous access to the L2 cache may encounter a
1020 situation in which recent store transactions to the L2 cache are lost
1021 and overwritten with stale memory contents from external memory. The
1022 workaround disables the write-allocate mode for the L2 cache via the
1023 ACTLR register. Note that setting specific bits in the ACTLR register
1024 may not be available in non-secure mode.
1025
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001026config PL310_ERRATA_588369
1027 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1028 depends on CACHE_L2X0 && ARCH_OMAP4
1029 help
1030 The PL310 L2 cache controller implements three types of Clean &
1031 Invalidate maintenance operations: by Physical Address
1032 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1033 They are architecturally defined to behave as the execution of a
1034 clean operation followed immediately by an invalidate operation,
1035 both performing to the same memory location. This functionality
1036 is not correctly implemented in PL310 as clean lines are not
1037 invalidated as a result of these operations. Note that this errata
1038 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039endmenu
1040
1041source "arch/arm/common/Kconfig"
1042
1043config FORCE_MAX_ZONEORDER
1044 int
1045 depends on SA1111
1046 default "9"
1047
1048menu "Bus support"
1049
1050config ARM_AMBA
1051 bool
1052
1053config ISA
1054 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 help
1056 Find out whether you have ISA slots on your motherboard. ISA is the
1057 name of a bus system, i.e. the way the CPU talks to the other stuff
1058 inside your box. Other bus systems are PCI, EISA, MicroChannel
1059 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1060 newer boards don't support it. If you have ISA, say Y, otherwise N.
1061
Russell King065909b2006-01-04 15:44:16 +00001062# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063config ISA_DMA
1064 bool
Russell King065909b2006-01-04 15:44:16 +00001065 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066
Russell King065909b2006-01-04 15:44:16 +00001067# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001068config ISA_DMA_API
1069 bool
Al Viro5cae8412005-05-04 05:39:22 +01001070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001072 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 help
1074 Find out whether you have a PCI motherboard. PCI is the name of a
1075 bus system, i.e. the way the CPU talks to the other stuff inside
1076 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1077 VESA. If you have PCI, say Y, otherwise N.
1078
Matthew Wilcox36e23592007-07-10 10:54:40 -06001079config PCI_SYSCALL
1080 def_bool PCI
1081
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082# Select the host bridge type
1083config PCI_HOST_VIA82C505
1084 bool
1085 depends on PCI && ARCH_SHARK
1086 default y
1087
Mike Rapoporta0113a92007-11-25 08:55:34 +01001088config PCI_HOST_ITE8152
1089 bool
1090 depends on PCI && MACH_ARMCORE
1091 default y
1092 select DMABOUNCE
1093
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094source "drivers/pci/Kconfig"
1095
1096source "drivers/pcmcia/Kconfig"
1097
1098endmenu
1099
1100menu "Kernel Features"
1101
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001102source "kernel/time/Kconfig"
1103
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104config SMP
1105 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001106 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001107 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001108 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001109 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001110 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 help
1112 This enables support for systems with more than one CPU. If you have
1113 a system with only one CPU, like most personal computers, say N. If
1114 you have a system with more than one CPU, say Y.
1115
1116 If you say N here, the kernel will run on single and multiprocessor
1117 machines, but will use only one CPU of a multiprocessor machine. If
1118 you say Y here, the kernel will run on many, but not all, single
1119 processor machines. On a single processor machine, the kernel will
1120 run faster if you say N here.
1121
Adrian Bunk03502fa2008-02-03 15:50:21 +02001122 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1124 <http://www.linuxdoc.org/docs.html#howto>.
1125
1126 If you don't know what to do here, say N.
1127
Russell Kinga8cbcd92009-05-16 11:51:14 +01001128config HAVE_ARM_SCU
1129 bool
1130 depends on SMP
1131 help
1132 This option enables support for the ARM system coherency unit
1133
Russell Kingf32f4ce2009-05-16 12:14:21 +01001134config HAVE_ARM_TWD
1135 bool
1136 depends on SMP
1137 help
1138 This options enables support for the ARM timer and watchdog unit
1139
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001140choice
1141 prompt "Memory split"
1142 default VMSPLIT_3G
1143 help
1144 Select the desired split between kernel and user memory.
1145
1146 If you are not absolutely sure what you are doing, leave this
1147 option alone!
1148
1149 config VMSPLIT_3G
1150 bool "3G/1G user/kernel split"
1151 config VMSPLIT_2G
1152 bool "2G/2G user/kernel split"
1153 config VMSPLIT_1G
1154 bool "1G/3G user/kernel split"
1155endchoice
1156
1157config PAGE_OFFSET
1158 hex
1159 default 0x40000000 if VMSPLIT_1G
1160 default 0x80000000 if VMSPLIT_2G
1161 default 0xC0000000
1162
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163config NR_CPUS
1164 int "Maximum number of CPUs (2-32)"
1165 range 2 32
1166 depends on SMP
1167 default "4"
1168
Russell Kinga054a812005-11-02 22:24:33 +00001169config HOTPLUG_CPU
1170 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1171 depends on SMP && HOTPLUG && EXPERIMENTAL
1172 help
1173 Say Y here to experiment with turning CPUs off and on. CPUs
1174 can be controlled through /sys/devices/system/cpu.
1175
Russell King37ee16a2005-11-08 19:08:05 +00001176config LOCAL_TIMERS
1177 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001178 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001179 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001180 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001181 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001182 help
1183 Enable support for local timers on SMP platforms, rather then the
1184 legacy IPI broadcast method. Local timers allows the system
1185 accounting to be spread across the timer interval, preventing a
1186 "thundering herd" at every timer tick.
1187
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001188source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189
Russell Kingf8065812006-03-02 22:41:59 +00001190config HZ
1191 int
1192 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001193 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001194 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001195 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001196 default 100
1197
Catalin Marinas16c79652009-07-24 12:33:02 +01001198config THUMB2_KERNEL
1199 bool "Compile the kernel in Thumb-2 mode"
1200 depends on CPU_V7 && EXPERIMENTAL
1201 select AEABI
1202 select ARM_ASM_UNIFIED
1203 help
1204 By enabling this option, the kernel will be compiled in
1205 Thumb-2 mode. A compiler/assembler that understand the unified
1206 ARM-Thumb syntax is needed.
1207
1208 If unsure, say N.
1209
Catalin Marinas0becb082009-07-24 12:32:53 +01001210config ARM_ASM_UNIFIED
1211 bool
1212
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001213config AEABI
1214 bool "Use the ARM EABI to compile the kernel"
1215 help
1216 This option allows for the kernel to be compiled using the latest
1217 ARM ABI (aka EABI). This is only useful if you are using a user
1218 space environment that is also compiled with EABI.
1219
1220 Since there are major incompatibilities between the legacy ABI and
1221 EABI, especially with regard to structure member alignment, this
1222 option also changes the kernel syscall calling convention to
1223 disambiguate both ABIs and allow for backward compatibility support
1224 (selected with CONFIG_OABI_COMPAT).
1225
1226 To use this you need GCC version 4.0.0 or later.
1227
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001228config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001229 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001230 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001231 default y
1232 help
1233 This option preserves the old syscall interface along with the
1234 new (ARM EABI) one. It also provides a compatibility layer to
1235 intercept syscalls that have structure arguments which layout
1236 in memory differs between the legacy ABI and the new ARM EABI
1237 (only for non "thumb" binaries). This option adds a tiny
1238 overhead to all syscalls and produces a slightly larger kernel.
1239 If you know you'll be using only pure EABI user space then you
1240 can say N here. If this option is not selected and you attempt
1241 to execute a legacy ABI binary then the result will be
1242 UNPREDICTABLE (in fact it can be predicted that it won't work
1243 at all). If in doubt say Y.
1244
Mel Gormaneb335752009-05-13 17:34:48 +01001245config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001246 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001247
Russell King07a2f732008-10-01 21:39:58 +01001248# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001249config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251
Russell King05944d72006-11-30 20:43:51 +00001252config ARCH_SPARSEMEM_ENABLE
1253 bool
1254
Russell King07a2f732008-10-01 21:39:58 +01001255config ARCH_SPARSEMEM_DEFAULT
1256 def_bool ARCH_SPARSEMEM_ENABLE
1257
Russell King05944d72006-11-30 20:43:51 +00001258config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001259 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001260
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001261config NODES_SHIFT
1262 int
1263 default "4" if ARCH_LH7A40X
1264 default "2"
1265 depends on NEED_MULTIPLE_NODES
1266
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001267config HIGHMEM
1268 bool "High Memory Support (EXPERIMENTAL)"
1269 depends on MMU && EXPERIMENTAL
1270 help
1271 The address space of ARM processors is only 4 Gigabytes large
1272 and it has to accommodate user address space, kernel address
1273 space as well as some memory mapped IO. That means that, if you
1274 have a large amount of physical memory and/or IO, not all of the
1275 memory can be "permanently mapped" by the kernel. The physical
1276 memory that is not permanently mapped is called "high memory".
1277
1278 Depending on the selected kernel/user memory split, minimum
1279 vmalloc space and actual amount of RAM, you may not need this
1280 option which should result in a slightly faster kernel.
1281
1282 If unsure, say n.
1283
Russell King65cec8e2009-08-17 20:02:06 +01001284config HIGHPTE
1285 bool "Allocate 2nd-level pagetables from highmem"
1286 depends on HIGHMEM
1287 depends on !OUTER_CACHE
1288
Jamie Iles1b8873a2010-02-02 20:25:44 +01001289config HW_PERF_EVENTS
1290 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001291 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001292 default y
1293 help
1294 Enable hardware performance counter support for perf events. If
1295 disabled, perf events will use software events only.
1296
Dave Hansen3f22ab22005-06-23 00:07:43 -07001297source "mm/Kconfig"
1298
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299config LEDS
1300 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001301 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001302 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1304 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001305 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001306 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001307 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001308 help
1309 If you say Y here, the LEDs on your machine will be used
1310 to provide useful information about your current system status.
1311
1312 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1313 be able to select which LEDs are active using the options below. If
1314 you are compiling a kernel for the EBSA-110 or the LART however, the
1315 red LED will simply flash regularly to indicate that the system is
1316 still functional. It is safe to say Y here if you have a CATS
1317 system, but the driver will do nothing.
1318
1319config LEDS_TIMER
1320 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001321 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1322 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001324 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 default y if ARCH_EBSA110
1326 help
1327 If you say Y here, one of the system LEDs (the green one on the
1328 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1329 will flash regularly to indicate that the system is still
1330 operational. This is mainly useful to kernel hackers who are
1331 debugging unstable kernels.
1332
1333 The LART uses the same LED for both Timer LED and CPU usage LED
1334 functions. You may choose to use both, but the Timer LED function
1335 will overrule the CPU usage LED.
1336
1337config LEDS_CPU
1338 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001339 !ARCH_OMAP) \
1340 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1341 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342 depends on LEDS
1343 help
1344 If you say Y here, the red LED will be used to give a good real
1345 time indication of CPU usage, by lighting whenever the idle task
1346 is not currently executing.
1347
1348 The LART uses the same LED for both Timer LED and CPU usage LED
1349 functions. You may choose to use both, but the Timer LED function
1350 will overrule the CPU usage LED.
1351
1352config ALIGNMENT_TRAP
1353 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001354 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001356 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001358 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1360 address divisible by 4. On 32-bit ARM processors, these non-aligned
1361 fetch/store instructions will be emulated in software if you say
1362 here, which has a severe performance impact. This is necessary for
1363 correct operation of some network protocols. With an IP-only
1364 configuration it is safe to say N, otherwise say Y.
1365
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001366config UACCESS_WITH_MEMCPY
1367 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1368 depends on MMU && EXPERIMENTAL
1369 default y if CPU_FEROCEON
1370 help
1371 Implement faster copy_to_user and clear_user methods for CPU
1372 cores where a 8-word STM instruction give significantly higher
1373 memory write throughput than a sequence of individual 32bit stores.
1374
1375 A possible side effect is a slight increase in scheduling latency
1376 between threads sharing the same address space if they invoke
1377 such copy operations with large buffers.
1378
1379 However, if the CPU data cache is using a write-allocate mode,
1380 this option is unlikely to provide any performance gain.
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382endmenu
1383
1384menu "Boot options"
1385
1386# Compressed boot loader in ROM. Yes, we really want to ask about
1387# TEXT and BSS so we preserve their values in the config files.
1388config ZBOOT_ROM_TEXT
1389 hex "Compressed ROM boot loader base address"
1390 default "0"
1391 help
1392 The physical address at which the ROM-able zImage is to be
1393 placed in the target. Platforms which normally make use of
1394 ROM-able zImage formats normally set this to a suitable
1395 value in their defconfig file.
1396
1397 If ZBOOT_ROM is not enabled, this has no effect.
1398
1399config ZBOOT_ROM_BSS
1400 hex "Compressed ROM boot loader BSS address"
1401 default "0"
1402 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001403 The base address of an area of read/write memory in the target
1404 for the ROM-able zImage which must be available while the
1405 decompressor is running. It must be large enough to hold the
1406 entire decompressed kernel plus an additional 128 KiB.
1407 Platforms which normally make use of ROM-able zImage formats
1408 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409
1410 If ZBOOT_ROM is not enabled, this has no effect.
1411
1412config ZBOOT_ROM
1413 bool "Compressed boot loader in ROM/flash"
1414 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1415 help
1416 Say Y here if you intend to execute your compressed kernel image
1417 (zImage) directly from ROM or flash. If unsure, say N.
1418
1419config CMDLINE
1420 string "Default kernel command string"
1421 default ""
1422 help
1423 On some architectures (EBSA110 and CATS), there is currently no way
1424 for the boot loader to pass arguments to the kernel. For these
1425 architectures, you should supply some command-line options at build
1426 time by entering them here. As a minimum, you should specify the
1427 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1428
1429config XIP_KERNEL
1430 bool "Kernel Execute-In-Place from ROM"
1431 depends on !ZBOOT_ROM
1432 help
1433 Execute-In-Place allows the kernel to run from non-volatile storage
1434 directly addressable by the CPU, such as NOR flash. This saves RAM
1435 space since the text section of the kernel is not loaded from flash
1436 to RAM. Read-write sections, such as the data section and stack,
1437 are still copied to RAM. The XIP kernel is not compressed since
1438 it has to run directly from flash, so it will take more space to
1439 store it. The flash address used to link the kernel object files,
1440 and for storing it, is configuration dependent. Therefore, if you
1441 say Y here, you must know the proper physical address where to
1442 store the kernel image depending on your own flash memory usage.
1443
1444 Also note that the make target becomes "make xipImage" rather than
1445 "make zImage" or "make Image". The final kernel binary to put in
1446 ROM memory will be arch/arm/boot/xipImage.
1447
1448 If unsure, say N.
1449
1450config XIP_PHYS_ADDR
1451 hex "XIP Kernel Physical Location"
1452 depends on XIP_KERNEL
1453 default "0x00080000"
1454 help
1455 This is the physical address in your flash memory the kernel will
1456 be linked for and stored to. This address is dependent on your
1457 own flash usage.
1458
Richard Purdiec587e4a2007-02-06 21:29:00 +01001459config KEXEC
1460 bool "Kexec system call (EXPERIMENTAL)"
1461 depends on EXPERIMENTAL
1462 help
1463 kexec is a system call that implements the ability to shutdown your
1464 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001465 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001466 you can start any kernel with it, not just Linux.
1467
1468 It is an ongoing process to be certain the hardware in a machine
1469 is properly shutdown, so do not be surprised if this code does not
1470 initially work for you. It may help to enable device hotplugging
1471 support.
1472
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001473config ATAGS_PROC
1474 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001475 depends on KEXEC
1476 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001477 help
1478 Should the atags used to boot the kernel be exported in an "atags"
1479 file in procfs. Useful with kexec.
1480
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481endmenu
1482
Russell Kingac9d7ef2008-08-18 17:26:00 +01001483menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484
Ben Dooks89c52ed2009-07-30 23:23:24 +01001485if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
1487source "drivers/cpufreq/Kconfig"
1488
1489config CPU_FREQ_SA1100
1490 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491
1492config CPU_FREQ_SA1110
1493 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494
1495config CPU_FREQ_INTEGRATOR
1496 tristate "CPUfreq driver for ARM Integrator CPUs"
1497 depends on ARCH_INTEGRATOR && CPU_FREQ
1498 default y
1499 help
1500 This enables the CPUfreq driver for ARM Integrator CPUs.
1501
1502 For details, take a look at <file:Documentation/cpu-freq>.
1503
1504 If in doubt, say Y.
1505
Russell King9e2697f2007-12-14 13:30:14 +00001506config CPU_FREQ_PXA
1507 bool
1508 depends on CPU_FREQ && ARCH_PXA && PXA25x
1509 default y
1510 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1511
Mark Brownb3748dd2009-06-15 11:23:20 +01001512config CPU_FREQ_S3C64XX
1513 bool "CPUfreq support for Samsung S3C64XX CPUs"
1514 depends on CPU_FREQ && CPU_S3C6410
1515
Ben Dooks9d56c022009-07-30 23:23:25 +01001516config CPU_FREQ_S3C
1517 bool
1518 help
1519 Internal configuration node for common cpufreq on Samsung SoC
1520
1521config CPU_FREQ_S3C24XX
1522 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1523 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1524 select CPU_FREQ_S3C
1525 help
1526 This enables the CPUfreq driver for the Samsung S3C24XX family
1527 of CPUs.
1528
1529 For details, take a look at <file:Documentation/cpu-freq>.
1530
1531 If in doubt, say N.
1532
1533config CPU_FREQ_S3C24XX_PLL
1534 bool "Support CPUfreq changing of PLL frequency"
1535 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1536 help
1537 Compile in support for changing the PLL frequency from the
1538 S3C24XX series CPUfreq driver. The PLL takes time to settle
1539 after a frequency change, so by default it is not enabled.
1540
1541 This also means that the PLL tables for the selected CPU(s) will
1542 be built which may increase the size of the kernel image.
1543
1544config CPU_FREQ_S3C24XX_DEBUG
1545 bool "Debug CPUfreq Samsung driver core"
1546 depends on CPU_FREQ_S3C24XX
1547 help
1548 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1549
1550config CPU_FREQ_S3C24XX_IODEBUG
1551 bool "Debug CPUfreq Samsung driver IO timing"
1552 depends on CPU_FREQ_S3C24XX
1553 help
1554 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1555
Ben Dookse6d197a2009-07-30 23:23:42 +01001556config CPU_FREQ_S3C24XX_DEBUGFS
1557 bool "Export debugfs for CPUFreq"
1558 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1559 help
1560 Export status information via debugfs.
1561
Linus Torvalds1da177e2005-04-16 15:20:36 -07001562endif
1563
Russell Kingac9d7ef2008-08-18 17:26:00 +01001564source "drivers/cpuidle/Kconfig"
1565
1566endmenu
1567
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568menu "Floating point emulation"
1569
1570comment "At least one emulation must be selected"
1571
1572config FPE_NWFPE
1573 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001574 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575 ---help---
1576 Say Y to include the NWFPE floating point emulator in the kernel.
1577 This is necessary to run most binaries. Linux does not currently
1578 support floating point hardware so you need to say Y here even if
1579 your machine has an FPA or floating point co-processor podule.
1580
1581 You may say N here if you are going to load the Acorn FPEmulator
1582 early in the bootup.
1583
1584config FPE_NWFPE_XP
1585 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001586 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 help
1588 Say Y to include 80-bit support in the kernel floating-point
1589 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1590 Note that gcc does not generate 80-bit operations by default,
1591 so in most cases this option only enlarges the size of the
1592 floating point emulator without any good reason.
1593
1594 You almost surely want to say N here.
1595
1596config FPE_FASTFPE
1597 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001598 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599 ---help---
1600 Say Y here to include the FAST floating point emulator in the kernel.
1601 This is an experimental much faster emulator which now also has full
1602 precision for the mantissa. It does not support any exceptions.
1603 It is very simple, and approximately 3-6 times faster than NWFPE.
1604
1605 It should be sufficient for most programs. It may be not suitable
1606 for scientific calculations, but you have to check this for yourself.
1607 If you do not feel you need a faster FP emulation you should better
1608 choose NWFPE.
1609
1610config VFP
1611 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001612 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613 help
1614 Say Y to include VFP support code in the kernel. This is needed
1615 if your hardware includes a VFP unit.
1616
1617 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1618 release notes and additional status information.
1619
1620 Say N if your target does not have VFP hardware.
1621
Catalin Marinas25ebee02007-09-25 15:22:24 +01001622config VFPv3
1623 bool
1624 depends on VFP
1625 default y if CPU_V7
1626
Catalin Marinasb5872db2008-01-10 19:16:17 +01001627config NEON
1628 bool "Advanced SIMD (NEON) Extension support"
1629 depends on VFPv3 && CPU_V7
1630 help
1631 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1632 Extension.
1633
Linus Torvalds1da177e2005-04-16 15:20:36 -07001634endmenu
1635
1636menu "Userspace binary formats"
1637
1638source "fs/Kconfig.binfmt"
1639
1640config ARTHUR
1641 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001642 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001643 help
1644 Say Y here to include the kernel code necessary if you want to run
1645 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1646 experimental; if this sounds frightening, say N and sleep in peace.
1647 You can also say M here to compile this support as a module (which
1648 will be called arthur).
1649
1650endmenu
1651
1652menu "Power management options"
1653
Russell Kingeceab4a2005-11-15 11:31:41 +00001654source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655
Johannes Bergf4cb5702007-12-08 02:14:00 +01001656config ARCH_SUSPEND_POSSIBLE
1657 def_bool y
1658
Linus Torvalds1da177e2005-04-16 15:20:36 -07001659endmenu
1660
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001661source "net/Kconfig"
1662
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001663source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001664
1665source "fs/Kconfig"
1666
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667source "arch/arm/Kconfig.debug"
1668
1669source "security/Kconfig"
1670
1671source "crypto/Kconfig"
1672
1673source "lib/Kconfig"