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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050016 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 help
27 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000028 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000030 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 Europe. There is an ARM Linux project with a web page at
32 <http://www.arm.linux.org.uk/>.
33
Russell King1a189b92008-04-13 21:41:55 +010034config HAVE_PWM
35 bool
36
Ralf Baechle75e71532007-02-09 17:08:58 +000037config SYS_SUPPORTS_APM_EMULATION
38 bool
39
David Brownell0a938b92007-03-05 00:30:18 -080040config GENERIC_GPIO
41 bool
David Brownell0a938b92007-03-05 00:30:18 -080042
Kevin Hilman746140c2006-09-22 00:16:30 +010043config GENERIC_TIME
44 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010045
Kevin Hilman0567a0c2007-03-13 20:29:24 +010046config GENERIC_CLOCKEVENTS
47 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010048
Catalin Marinasa8655e82008-02-04 17:30:57 +010049config GENERIC_CLOCKEVENTS_BROADCAST
50 bool
51 depends on GENERIC_CLOCKEVENTS
52 default y if SMP && !LOCAL_TIMERS
53
Linus Walleijbc581772009-09-15 17:30:37 +010054config HAVE_TCM
55 bool
56 select GENERIC_ALLOCATOR
57
Russell Kinge119bff2010-01-10 17:23:29 +000058config HAVE_PROC_CPU
59 bool
60
Al Viro5ea81762007-02-11 15:41:31 +000061config NO_IOPORT
62 bool
Al Viro5ea81762007-02-11 15:41:31 +000063
Linus Torvalds1da177e2005-04-16 15:20:36 -070064config EISA
65 bool
66 ---help---
67 The Extended Industry Standard Architecture (EISA) bus was
68 developed as an open alternative to the IBM MicroChannel bus.
69
70 The EISA bus provided some of the features of the IBM MicroChannel
71 bus while maintaining backward compatibility with cards made for
72 the older ISA bus. The EISA bus saw limited use between 1988 and
73 1995 when it was made obsolete by the PCI bus.
74
75 Say Y here if you are building a kernel for an EISA-based machine.
76
77 Otherwise, say N.
78
79config SBUS
80 bool
81
82config MCA
83 bool
84 help
85 MicroChannel Architecture is found in some IBM PS/2 machines and
86 laptops. It is a bus system similar to PCI or ISA. See
87 <file:Documentation/mca.txt> (and especially the web page given
88 there) before attempting to build an MCA bus kernel.
89
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010090config GENERIC_HARDIRQS
91 bool
92 default y
93
Russell Kingf16fb1e2007-04-28 09:59:37 +010094config STACKTRACE_SUPPORT
95 bool
96 default y
97
Nicolas Pitref76e9152008-04-24 01:31:46 -040098config HAVE_LATENCYTOP_SUPPORT
99 bool
100 depends on !SMP
101 default y
102
Russell Kingf16fb1e2007-04-28 09:59:37 +0100103config LOCKDEP_SUPPORT
104 bool
105 default y
106
Russell King7ad1bcb2006-08-27 12:07:02 +0100107config TRACE_IRQFLAGS_SUPPORT
108 bool
109 default y
110
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100111config HARDIRQS_SW_RESEND
112 bool
113 default y
114
115config GENERIC_IRQ_PROBE
116 bool
117 default y
118
Nick Piggin95c354f2008-01-30 13:31:20 +0100119config GENERIC_LOCKBREAK
120 bool
121 default y
122 depends on SMP && PREEMPT
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124config RWSEM_GENERIC_SPINLOCK
125 bool
126 default y
127
128config RWSEM_XCHGADD_ALGORITHM
129 bool
130
David Howellsf0d1b0b2006-12-08 02:37:49 -0800131config ARCH_HAS_ILOG2_U32
132 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800133
134config ARCH_HAS_ILOG2_U64
135 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136
Ben Dooks89c52ed2009-07-30 23:23:24 +0100137config ARCH_HAS_CPUFREQ
138 bool
139 help
140 Internal node to signify that the ARCH has CPUFREQ support
141 and that the relevant menu configurations are displayed for
142 it.
143
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800144config GENERIC_HWEIGHT
145 bool
146 default y
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148config GENERIC_CALIBRATE_DELAY
149 bool
150 default y
151
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100152config ARCH_MAY_HAVE_PC_FDC
153 bool
154
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800155config ZONE_DMA
156 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800157
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800158config NEED_DMA_MAP_STATE
159 def_bool y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config GENERIC_ISA_DMA
162 bool
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config FIQ
165 bool
166
Al Viro034d2f52005-12-19 16:27:59 -0500167config ARCH_MTD_XIP
168 bool
169
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100170config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100171 def_bool y
172
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100173config ARM_L1_CACHE_SHIFT_6
174 bool
175 help
176 Setting ARM L1 cache line size to 64 Bytes.
177
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500178if OPROFILE
179
180config OPROFILE_ARMV6
181 def_bool y
182 depends on CPU_V6 && !SMP
183 select OPROFILE_ARM11_CORE
184
185config OPROFILE_MPCORE
186 def_bool y
187 depends on CPU_V6 && SMP
188 select OPROFILE_ARM11_CORE
189
190config OPROFILE_ARM11_CORE
191 bool
192
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100193config OPROFILE_ARMV7
194 def_bool y
195 depends on CPU_V7 && !SMP
196 bool
197
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500198endif
199
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200config VECTORS_BASE
201 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900202 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100203 default DRAM_BASE if REMAP_VECTORS_TO_RAM
204 default 0x00000000
205 help
206 The base address of exception vectors.
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208source "init/Kconfig"
209
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700210source "kernel/Kconfig.freezer"
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212menu "System Type"
213
Hyok S. Choi3c427972009-07-24 12:35:00 +0100214config MMU
215 bool "MMU-based Paged Memory Management Support"
216 default y
217 help
218 Select if you want MMU-based virtualised addressing space
219 support by paged memory management. If unsure, say 'Y'.
220
Russell Kingccf50e22010-03-15 19:03:06 +0000221#
222# The "ARM system type" choice list is ordered alphabetically by option
223# text. Please add new entries in the option alphabetic order.
224#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225choice
226 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000227 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229config ARCH_AAEC2000
230 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000231 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 help
235 This enables support for systems based on the Agilent AAEC-2000
236
237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700241 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000242 select COMMON_CLKDEV
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
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100256 help
257 This enables support for ARM Ltd RealView boards.
258
259config ARCH_VERSATILE
260 bool "ARM Ltd. Versatile family"
261 select ARM_AMBA
262 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700263 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000264 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 select ICST307
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100266 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100267 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100268 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 help
270 This enables support for ARM Ltd Versatile board.
271
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100272config ARCH_AT91
273 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800274 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100275 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700276 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100278 This enables support for systems based on the Atmel AT91RM9200,
279 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100280
Russell Kingccf50e22010-03-15 19:03:06 +0000281config ARCH_BCMRING
282 bool "Broadcom BCMRING"
283 depends on MMU
284 select CPU_V6
285 select ARM_AMBA
286 select COMMON_CLKDEV
287 select GENERIC_TIME
288 select GENERIC_CLOCKEVENTS
289 select ARCH_WANT_OPTIONAL_GPIOLIB
290 help
291 Support for Broadcom's BCMRing platform.
292
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000295 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000296 help
297 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
Russell King788c9702009-04-26 14:21:59 +0100299config ARCH_GEMINI
300 bool "Cortina Systems Gemini"
301 select CPU_FA526
302 select GENERIC_GPIO
303 select ARCH_REQUIRE_GPIOLIB
304 help
305 Support for the Cortina Systems Gemini family SoCs
306
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307config ARCH_EBSA110
308 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000309 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100310 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000311 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 help
313 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000314 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 Ethernet interface, two PCMCIA sockets, two serial ports and a
316 parallel port.
317
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000318config ARCH_EP93XX
319 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000320 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000321 select ARM_AMBA
322 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100323 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700324 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000325 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700326 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100327 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328 help
329 This enables support for the Cirrus EP93xx series of CPUs.
330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331config ARCH_FOOTBRIDGE
332 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000335 help
336 Support for systems based on the DC21285 companion chip
337 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Russell King788c9702009-04-26 14:21:59 +0100339config ARCH_MXC
340 bool "Freescale MXC/iMX-based"
341 select GENERIC_TIME
342 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100343 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100344 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100345 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100346 help
347 Support for Freescale MXC/iMX-based family of processors
348
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100349config ARCH_STMP3XXX
350 bool "Freescale STMP3xxx"
351 select CPU_ARM926T
352 select HAVE_CLK
353 select COMMON_CLKDEV
354 select ARCH_REQUIRE_GPIOLIB
355 select GENERIC_TIME
356 select GENERIC_CLOCKEVENTS
357 select GENERIC_GPIO
358 select USB_ARCH_HAS_EHCI
359 help
360 Support for systems based on the Freescale 3xxx CPUs.
361
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100362config ARCH_NETX
363 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000364 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100365 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100366 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100367 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000368 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369 This enables support for systems based on the Hilscher NetX Soc
370
371config ARCH_H720X
372 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000373 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100374 select ISA_DMA_API
375 help
376 This enables support for systems based on the Hynix HMS720x
377
Russell King3b938be2007-05-12 11:25:44 +0100378config ARCH_IOP13XX
379 bool "IOP13xx-based"
380 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000381 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100382 select PLAT_IOP
383 select PCI
384 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100385 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100386 help
387 Support for Intel's IOP13XX (XScale) family of processors.
388
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100389config ARCH_IOP32X
390 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100391 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000392 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100393 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100394 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100395 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100396 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000397 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100398 Support for Intel's 80219 and IOP32X (XScale) family of
399 processors.
400
401config ARCH_IOP33X
402 bool "IOP33x-based"
403 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100405 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100406 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100407 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100408 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100409 help
410 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
Russell King3b938be2007-05-12 11:25:44 +0100412config ARCH_IXP23XX
413 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100416 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100417 help
Russell King3b938be2007-05-12 11:25:44 +0100418 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
420config ARCH_IXP2000
421 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100424 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000425 help
426 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
Russell King3b938be2007-05-12 11:25:44 +0100428config ARCH_IXP4XX
429 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100430 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100432 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100433 select GENERIC_TIME
434 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100435 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100436 help
Russell King3b938be2007-05-12 11:25:44 +0100437 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100438
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439config ARCH_L7200
440 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000441 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 select FIQ
443 help
444 Say Y here if you intend to run this kernel on a LinkUp Systems
445 L7200 Software Development Board which uses an ARM720T processor.
446 Information on this board can be obtained at:
447
448 <http://www.linkupsys.com/>
449
450 If you have any questions or comments about the Linux kernel port
451 to this board, send e-mail to <sjhill@cotw.com>.
452
Saeed Bisharaedabd382009-08-06 15:12:43 +0300453config ARCH_DOVE
454 bool "Marvell Dove"
455 select PCI
456 select GENERIC_GPIO
457 select ARCH_REQUIRE_GPIOLIB
458 select GENERIC_TIME
459 select GENERIC_CLOCKEVENTS
460 select PLAT_ORION
461 help
462 Support for the Marvell Dove SoC 88AP510
463
Saeed Bishara651c74c2008-06-22 22:45:06 +0200464config ARCH_KIRKWOOD
465 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200467 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200468 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700469 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200470 select GENERIC_TIME
471 select GENERIC_CLOCKEVENTS
472 select PLAT_ORION
473 help
474 Support for the following Marvell Kirkwood series SoCs:
475 88F6180, 88F6192 and 88F6281.
476
Russell King788c9702009-04-26 14:21:59 +0100477config ARCH_LOKI
478 bool "Marvell Loki (88RC8480)"
479 select CPU_FEROCEON
480 select GENERIC_TIME
481 select GENERIC_CLOCKEVENTS
482 select PLAT_ORION
483 help
484 Support for the Marvell Loki (88RC8480) SoC.
485
486config ARCH_MV78XX0
487 bool "Marvell MV78xx0"
488 select CPU_FEROCEON
489 select PCI
490 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700491 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100492 select GENERIC_TIME
493 select GENERIC_CLOCKEVENTS
494 select PLAT_ORION
495 help
496 Support for the following Marvell MV78xx0 series SoCs:
497 MV781x0, MV782x0.
498
499config ARCH_ORION5X
500 bool "Marvell Orion"
501 depends on MMU
502 select CPU_FEROCEON
503 select PCI
504 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700505 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100506 select GENERIC_TIME
507 select GENERIC_CLOCKEVENTS
508 select PLAT_ORION
509 help
510 Support for the following Marvell Orion 5x series SoCs:
511 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
512 Orion-2 (5281), Orion-1-90 (6183).
513
514config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500515 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100516 depends on MMU
517 select GENERIC_GPIO
518 select ARCH_REQUIRE_GPIOLIB
519 select HAVE_CLK
520 select COMMON_CLKDEV
521 select GENERIC_TIME
522 select GENERIC_CLOCKEVENTS
523 select TICK_ONESHOT
524 select PLAT_PXA
525 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500526 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100527
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100528config ARCH_KS8695
529 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000530 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100531 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000532 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100533 help
534 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
535 System-on-Chip devices.
536
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100537config ARCH_NS9XXX
538 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000539 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100540 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100541 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100542 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700543 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100544 help
545 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
546 System.
547
548 <http://www.digi.com/products/microprocessors/index.jsp>
549
Russell King788c9702009-04-26 14:21:59 +0100550config ARCH_W90X900
551 bool "Nuvoton W90X900 CPU"
552 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100553 select ARCH_REQUIRE_GPIOLIB
554 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100555 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100556 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100557 select GENERIC_TIME
558 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200559 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100560 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
561 At present, the w90x900 has been renamed nuc900, regarding
562 the ARM series product line, you can login the following
563 link address to know more.
564
565 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
566 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400567
wanzongshuna62e9032009-12-31 15:06:05 +0100568config ARCH_NUC93X
569 bool "Nuvoton NUC93X CPU"
570 select CPU_ARM926T
571 select HAVE_CLK
572 select COMMON_CLKDEV
573 help
574 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
575 low-power and high performance MPEG-4/JPEG multimedia controller chip.
576
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100577config ARCH_PNX4008
578 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000579 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700580 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000581 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100582 help
583 This enables support for Philips PNX4008 mobile platform.
584
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700586 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100587 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500588 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100589 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800590 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700591 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000592 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700593 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100594 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100595 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000596 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800597 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000598 help
eric miao2c8086a2007-09-11 19:13:17 -0700599 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600
Russell King788c9702009-04-26 14:21:59 +0100601config ARCH_MSM
602 bool "Qualcomm MSM"
603 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800604 select GENERIC_TIME
605 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800606 help
Russell King788c9702009-04-26 14:21:59 +0100607 Support for Qualcomm MSM7K based systems. This runs on the ARM11
608 apps processor of the MSM7K and depends on a shared memory
609 interface to the ARM9 modem processor which runs the baseband stack
610 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800611
Magnus Dammc793c1b2010-02-05 11:14:49 +0000612config ARCH_SHMOBILE
613 bool "Renesas SH-Mobile"
614 help
615 Support for Renesas's SH-Mobile ARM platforms
616
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617config ARCH_RPC
618 bool "RiscPC"
619 select ARCH_ACORN
620 select FIQ
621 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100622 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100623 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000624 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000625 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100626 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 help
628 On the Acorn Risc-PC, Linux can support the internal IDE disk and
629 CD-ROM interface, serial and parallel port, and the floppy drive.
630
631config ARCH_SA1100
632 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000633 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100634 select ISA
Russell King05944d72006-11-30 20:43:51 +0000635 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500636 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100637 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000638 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800639 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000640 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100641 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700642 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100643 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700644 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000645 help
646 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647
648config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100649 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800650 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100651 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700652 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 help
654 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
655 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000656 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657
Ben Dooksa08ab632008-10-21 14:06:39 +0100658config ARCH_S3C64XX
659 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000660 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900661 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100662 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900663 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100664 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900665 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100666 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900667 select ARCH_REQUIRE_GPIOLIB
668 select SAMSUNG_CLKSRC
669 select SAMSUNG_IRQ_VIC_TIMER
670 select SAMSUNG_IRQ_UART
671 select S3C_GPIO_TRACK
672 select S3C_GPIO_PULL_UPDOWN
673 select S3C_GPIO_CFG_S3C24XX
674 select S3C_GPIO_CFG_S3C64XX
675 select S3C_DEV_NAND
676 select USB_ARCH_HAS_OHCI
677 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100678 help
679 Samsung S3C64XX series based systems
680
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900681config ARCH_S5P6440
682 bool "Samsung S5P6440"
683 select CPU_V6
684 select GENERIC_GPIO
685 select HAVE_CLK
686 help
687 Samsung S5P6440 CPU based systems
688
Kukjin Kim550db7f2010-01-29 10:19:26 +0900689config ARCH_S5P6442
690 bool "Samsung S5P6442"
691 select CPU_V6
692 select GENERIC_GPIO
693 select HAVE_CLK
694 help
695 Samsung S5P6442 CPU based systems
696
Byungho Min5a7652f2009-06-23 21:39:42 +0900697config ARCH_S5PC1XX
698 bool "Samsung S5PC1XX"
699 select GENERIC_GPIO
700 select HAVE_CLK
701 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100702 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900703 help
704 Samsung S5PC1XX series based systems
705
Kukjin Kim170f4e42010-02-24 16:40:44 +0900706config ARCH_S5PV210
707 bool "Samsung S5PV210/S5PC110"
708 select CPU_V7
709 select GENERIC_GPIO
710 select HAVE_CLK
711 select ARM_L1_CACHE_SHIFT_6
712 help
713 Samsung S5PV210/S5PC110 series based systems
714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715config ARCH_SHARK
716 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000717 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100718 select ISA
719 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100720 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100721 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000722 help
723 Support for the StrongARM based Digital DNARD machine, also known
724 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725
726config ARCH_LH7A40X
727 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000728 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100729 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
730 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731 help
732 Say Y here for systems based on one of the Sharp LH7A40X
733 System on a Chip processors. These CPUs include an ARM922T
734 core with a wide array of integrated devices for
735 hand-held and low-power applications.
736
Linus Walleijd98aac72009-04-27 10:21:46 +0100737config ARCH_U300
738 bool "ST-Ericsson U300 Series"
739 depends on MMU
740 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100741 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100742 select ARM_AMBA
743 select ARM_VIC
744 select GENERIC_TIME
745 select GENERIC_CLOCKEVENTS
746 select HAVE_CLK
747 select COMMON_CLKDEV
748 select GENERIC_GPIO
749 help
750 Support for ST-Ericsson U300 series mobile platforms.
751
Russell Kingccf50e22010-03-15 19:03:06 +0000752config ARCH_U8500
753 bool "ST-Ericsson U8500 Series"
754 select CPU_V7
755 select ARM_AMBA
756 select GENERIC_TIME
757 select GENERIC_CLOCKEVENTS
758 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100759 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000760 help
761 Support for ST-Ericsson's Ux500 architecture
762
763config ARCH_NOMADIK
764 bool "STMicroelectronics Nomadik"
765 select ARM_AMBA
766 select ARM_VIC
767 select CPU_ARM926T
768 select HAVE_CLK
769 select COMMON_CLKDEV
770 select GENERIC_TIME
771 select GENERIC_CLOCKEVENTS
772 select GENERIC_GPIO
773 select ARCH_REQUIRE_GPIOLIB
774 help
775 Support for the Nomadik platform by ST-Ericsson
776
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100777config ARCH_DAVINCI
778 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000779 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100780 select GENERIC_TIME
781 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100782 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700783 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700784 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100785 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700786 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700787 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700788 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530789 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100790 help
791 Support for TI's DaVinci platform.
792
Russell King3b938be2007-05-12 11:25:44 +0100793config ARCH_OMAP
794 bool "TI OMAP"
795 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700796 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700797 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100798 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100799 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700800 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800801 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100802 help
803 Support for TI's OMAP platform (OMAP1 and OMAP2).
804
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805endchoice
806
Russell Kingccf50e22010-03-15 19:03:06 +0000807#
808# This is sorted alphabetically by mach-* pathname. However, plat-*
809# Kconfigs may be included either alphabetically (according to the
810# plat- suffix) or along side the corresponding mach-* source.
811#
Russell King95b8f202010-01-14 11:43:54 +0000812source "arch/arm/mach-aaec2000/Kconfig"
813
814source "arch/arm/mach-at91/Kconfig"
815
816source "arch/arm/mach-bcmring/Kconfig"
817
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818source "arch/arm/mach-clps711x/Kconfig"
819
Russell King95b8f202010-01-14 11:43:54 +0000820source "arch/arm/mach-davinci/Kconfig"
821
822source "arch/arm/mach-dove/Kconfig"
823
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000824source "arch/arm/mach-ep93xx/Kconfig"
825
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826source "arch/arm/mach-footbridge/Kconfig"
827
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200828source "arch/arm/mach-gemini/Kconfig"
829
Russell King95b8f202010-01-14 11:43:54 +0000830source "arch/arm/mach-h720x/Kconfig"
831
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832source "arch/arm/mach-integrator/Kconfig"
833
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100834source "arch/arm/mach-iop32x/Kconfig"
835
836source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700837
Dan Williams285f5fa2006-12-07 02:59:39 +0100838source "arch/arm/mach-iop13xx/Kconfig"
839
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840source "arch/arm/mach-ixp4xx/Kconfig"
841
842source "arch/arm/mach-ixp2000/Kconfig"
843
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100844source "arch/arm/mach-ixp23xx/Kconfig"
845
Russell King95b8f202010-01-14 11:43:54 +0000846source "arch/arm/mach-kirkwood/Kconfig"
847
848source "arch/arm/mach-ks8695/Kconfig"
849
850source "arch/arm/mach-lh7a40x/Kconfig"
851
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200852source "arch/arm/mach-loki/Kconfig"
853
Russell King95b8f202010-01-14 11:43:54 +0000854source "arch/arm/mach-msm/Kconfig"
855
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200856source "arch/arm/mach-mv78xx0/Kconfig"
857
Russell King95b8f202010-01-14 11:43:54 +0000858source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859
Russell King95b8f202010-01-14 11:43:54 +0000860source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800861
Russell King95b8f202010-01-14 11:43:54 +0000862source "arch/arm/mach-nomadik/Kconfig"
863source "arch/arm/plat-nomadik/Kconfig"
864
865source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866
Russell Kingd91a8912010-02-04 18:13:17 +0000867source "arch/arm/mach-nuc93x/Kconfig"
868
Tony Lindgrend48af152005-07-10 19:58:17 +0100869source "arch/arm/plat-omap/Kconfig"
870
871source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872
Tony Lindgren1dbae812005-11-10 14:26:51 +0000873source "arch/arm/mach-omap2/Kconfig"
874
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400875source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400876
Russell King95b8f202010-01-14 11:43:54 +0000877source "arch/arm/mach-pxa/Kconfig"
878source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879
Russell King95b8f202010-01-14 11:43:54 +0000880source "arch/arm/mach-mmp/Kconfig"
881
882source "arch/arm/mach-realview/Kconfig"
883
884source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300885
Ben Dookscf383672009-11-10 00:14:58 +0000886source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100887source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900888source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900889source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100890
891if ARCH_S3C2410
892source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100894source "arch/arm/mach-s3c2412/Kconfig"
895source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100896source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100897endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898
Ben Dooksa08ab632008-10-21 14:06:39 +0100899if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900900source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100901endif
902
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900903source "arch/arm/mach-s5p6440/Kconfig"
904
Kukjin Kim550db7f2010-01-29 10:19:26 +0900905source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100906
Byungho Min5a7652f2009-06-23 21:39:42 +0900907if ARCH_S5PC1XX
908source "arch/arm/mach-s5pc100/Kconfig"
909endif
910
Kukjin Kim170f4e42010-02-24 16:40:44 +0900911source "arch/arm/mach-s5pv210/Kconfig"
912
Russell King882d01f2010-03-02 23:40:15 +0000913source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
Russell King882d01f2010-03-02 23:40:15 +0000915source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800916
Russell King95b8f202010-01-14 11:43:54 +0000917source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920
921source "arch/arm/mach-versatile/Kconfig"
922
wanzongshun7ec80dd2008-12-03 03:55:38 +0100923source "arch/arm/mach-w90x900/Kconfig"
924
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925# Definitions to make life easier
926config ARCH_ACORN
927 bool
928
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100929config PLAT_IOP
930 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700931 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700932 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100933
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400934config PLAT_ORION
935 bool
936
Eric Miaobd5ce432009-01-20 12:06:01 +0800937config PLAT_PXA
938 bool
939
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940source arch/arm/mm/Kconfig
941
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100942config IWMMXT
943 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800944 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
945 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100946 help
947 Enable support for iWMMXt context switching at run time if
948 running on a CPU that supports it.
949
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
951config XSCALE_PMU
952 bool
953 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
954 default y
955
Jamie Iles0f4f0672010-02-02 20:23:15 +0100956config CPU_HAS_PMU
957 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
958 default y
959 bool
960
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100961if !MMU
962source "arch/arm/Kconfig-nommu"
963endif
964
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100965config ARM_ERRATA_411920
966 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
967 depends on CPU_V6 && !SMP
968 help
969 Invalidation of the Instruction Cache operation can
970 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
971 It does not affect the MPCore. This option enables the ARM Ltd.
972 recommended workaround.
973
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100974config ARM_ERRATA_430973
975 bool "ARM errata: Stale prediction on replaced interworking branch"
976 depends on CPU_V7
977 help
978 This option enables the workaround for the 430973 Cortex-A8
979 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
980 interworking branch is replaced with another code sequence at the
981 same virtual address, whether due to self-modifying code or virtual
982 to physical address re-mapping, Cortex-A8 does not recover from the
983 stale interworking branch prediction. This results in Cortex-A8
984 executing the new code sequence in the incorrect ARM or Thumb state.
985 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
986 and also flushes the branch target cache at every context switch.
987 Note that setting specific bits in the ACTLR register may not be
988 available in non-secure mode.
989
Catalin Marinas855c5512009-04-30 17:06:15 +0100990config ARM_ERRATA_458693
991 bool "ARM errata: Processor deadlock when a false hazard is created"
992 depends on CPU_V7
993 help
994 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
995 erratum. For very specific sequences of memory operations, it is
996 possible for a hazard condition intended for a cache line to instead
997 be incorrectly associated with a different cache line. This false
998 hazard might then cause a processor deadlock. The workaround enables
999 the L1 caching of the NEON accesses and disables the PLD instruction
1000 in the ACTLR register. Note that setting specific bits in the ACTLR
1001 register may not be available in non-secure mode.
1002
Catalin Marinas0516e462009-04-30 17:06:20 +01001003config ARM_ERRATA_460075
1004 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1005 depends on CPU_V7
1006 help
1007 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1008 erratum. Any asynchronous access to the L2 cache may encounter a
1009 situation in which recent store transactions to the L2 cache are lost
1010 and overwritten with stale memory contents from external memory. The
1011 workaround disables the write-allocate mode for the L2 cache via the
1012 ACTLR register. Note that setting specific bits in the ACTLR register
1013 may not be available in non-secure mode.
1014
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001015config PL310_ERRATA_588369
1016 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1017 depends on CACHE_L2X0 && ARCH_OMAP4
1018 help
1019 The PL310 L2 cache controller implements three types of Clean &
1020 Invalidate maintenance operations: by Physical Address
1021 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1022 They are architecturally defined to behave as the execution of a
1023 clean operation followed immediately by an invalidate operation,
1024 both performing to the same memory location. This functionality
1025 is not correctly implemented in PL310 as clean lines are not
1026 invalidated as a result of these operations. Note that this errata
1027 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028endmenu
1029
1030source "arch/arm/common/Kconfig"
1031
1032config FORCE_MAX_ZONEORDER
1033 int
1034 depends on SA1111
1035 default "9"
1036
1037menu "Bus support"
1038
1039config ARM_AMBA
1040 bool
1041
1042config ISA
1043 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 help
1045 Find out whether you have ISA slots on your motherboard. ISA is the
1046 name of a bus system, i.e. the way the CPU talks to the other stuff
1047 inside your box. Other bus systems are PCI, EISA, MicroChannel
1048 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1049 newer boards don't support it. If you have ISA, say Y, otherwise N.
1050
Russell King065909b2006-01-04 15:44:16 +00001051# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052config ISA_DMA
1053 bool
Russell King065909b2006-01-04 15:44:16 +00001054 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
Russell King065909b2006-01-04 15:44:16 +00001056# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001057config ISA_DMA_API
1058 bool
Al Viro5cae8412005-05-04 05:39:22 +01001059
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001061 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 help
1063 Find out whether you have a PCI motherboard. PCI is the name of a
1064 bus system, i.e. the way the CPU talks to the other stuff inside
1065 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1066 VESA. If you have PCI, say Y, otherwise N.
1067
Matthew Wilcox36e23592007-07-10 10:54:40 -06001068config PCI_SYSCALL
1069 def_bool PCI
1070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071# Select the host bridge type
1072config PCI_HOST_VIA82C505
1073 bool
1074 depends on PCI && ARCH_SHARK
1075 default y
1076
Mike Rapoporta0113a92007-11-25 08:55:34 +01001077config PCI_HOST_ITE8152
1078 bool
1079 depends on PCI && MACH_ARMCORE
1080 default y
1081 select DMABOUNCE
1082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083source "drivers/pci/Kconfig"
1084
1085source "drivers/pcmcia/Kconfig"
1086
1087endmenu
1088
1089menu "Kernel Features"
1090
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001091source "kernel/time/Kconfig"
1092
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093config SMP
1094 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001095 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001096 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001097 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001098 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001099 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 help
1101 This enables support for systems with more than one CPU. If you have
1102 a system with only one CPU, like most personal computers, say N. If
1103 you have a system with more than one CPU, say Y.
1104
1105 If you say N here, the kernel will run on single and multiprocessor
1106 machines, but will use only one CPU of a multiprocessor machine. If
1107 you say Y here, the kernel will run on many, but not all, single
1108 processor machines. On a single processor machine, the kernel will
1109 run faster if you say N here.
1110
Adrian Bunk03502fa2008-02-03 15:50:21 +02001111 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1113 <http://www.linuxdoc.org/docs.html#howto>.
1114
1115 If you don't know what to do here, say N.
1116
Russell Kinga8cbcd92009-05-16 11:51:14 +01001117config HAVE_ARM_SCU
1118 bool
1119 depends on SMP
1120 help
1121 This option enables support for the ARM system coherency unit
1122
Russell Kingf32f4ce2009-05-16 12:14:21 +01001123config HAVE_ARM_TWD
1124 bool
1125 depends on SMP
1126 help
1127 This options enables support for the ARM timer and watchdog unit
1128
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001129choice
1130 prompt "Memory split"
1131 default VMSPLIT_3G
1132 help
1133 Select the desired split between kernel and user memory.
1134
1135 If you are not absolutely sure what you are doing, leave this
1136 option alone!
1137
1138 config VMSPLIT_3G
1139 bool "3G/1G user/kernel split"
1140 config VMSPLIT_2G
1141 bool "2G/2G user/kernel split"
1142 config VMSPLIT_1G
1143 bool "1G/3G user/kernel split"
1144endchoice
1145
1146config PAGE_OFFSET
1147 hex
1148 default 0x40000000 if VMSPLIT_1G
1149 default 0x80000000 if VMSPLIT_2G
1150 default 0xC0000000
1151
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152config NR_CPUS
1153 int "Maximum number of CPUs (2-32)"
1154 range 2 32
1155 depends on SMP
1156 default "4"
1157
Russell Kinga054a812005-11-02 22:24:33 +00001158config HOTPLUG_CPU
1159 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1160 depends on SMP && HOTPLUG && EXPERIMENTAL
1161 help
1162 Say Y here to experiment with turning CPUs off and on. CPUs
1163 can be controlled through /sys/devices/system/cpu.
1164
Russell King37ee16a2005-11-08 19:08:05 +00001165config LOCAL_TIMERS
1166 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001167 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001168 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001169 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001170 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001171 help
1172 Enable support for local timers on SMP platforms, rather then the
1173 legacy IPI broadcast method. Local timers allows the system
1174 accounting to be spread across the timer interval, preventing a
1175 "thundering herd" at every timer tick.
1176
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001177source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178
Russell Kingf8065812006-03-02 22:41:59 +00001179config HZ
1180 int
1181 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001182 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001183 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001184 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001185 default 100
1186
Catalin Marinas16c79652009-07-24 12:33:02 +01001187config THUMB2_KERNEL
1188 bool "Compile the kernel in Thumb-2 mode"
1189 depends on CPU_V7 && EXPERIMENTAL
1190 select AEABI
1191 select ARM_ASM_UNIFIED
1192 help
1193 By enabling this option, the kernel will be compiled in
1194 Thumb-2 mode. A compiler/assembler that understand the unified
1195 ARM-Thumb syntax is needed.
1196
1197 If unsure, say N.
1198
Catalin Marinas0becb082009-07-24 12:32:53 +01001199config ARM_ASM_UNIFIED
1200 bool
1201
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001202config AEABI
1203 bool "Use the ARM EABI to compile the kernel"
1204 help
1205 This option allows for the kernel to be compiled using the latest
1206 ARM ABI (aka EABI). This is only useful if you are using a user
1207 space environment that is also compiled with EABI.
1208
1209 Since there are major incompatibilities between the legacy ABI and
1210 EABI, especially with regard to structure member alignment, this
1211 option also changes the kernel syscall calling convention to
1212 disambiguate both ABIs and allow for backward compatibility support
1213 (selected with CONFIG_OABI_COMPAT).
1214
1215 To use this you need GCC version 4.0.0 or later.
1216
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001217config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001218 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001219 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001220 default y
1221 help
1222 This option preserves the old syscall interface along with the
1223 new (ARM EABI) one. It also provides a compatibility layer to
1224 intercept syscalls that have structure arguments which layout
1225 in memory differs between the legacy ABI and the new ARM EABI
1226 (only for non "thumb" binaries). This option adds a tiny
1227 overhead to all syscalls and produces a slightly larger kernel.
1228 If you know you'll be using only pure EABI user space then you
1229 can say N here. If this option is not selected and you attempt
1230 to execute a legacy ABI binary then the result will be
1231 UNPREDICTABLE (in fact it can be predicted that it won't work
1232 at all). If in doubt say Y.
1233
Mel Gormaneb335752009-05-13 17:34:48 +01001234config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001235 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001236
Russell King07a2f732008-10-01 21:39:58 +01001237# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001238config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240
Russell King05944d72006-11-30 20:43:51 +00001241config ARCH_SPARSEMEM_ENABLE
1242 bool
1243
Russell King07a2f732008-10-01 21:39:58 +01001244config ARCH_SPARSEMEM_DEFAULT
1245 def_bool ARCH_SPARSEMEM_ENABLE
1246
Russell King05944d72006-11-30 20:43:51 +00001247config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001248 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001249
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001250config NODES_SHIFT
1251 int
1252 default "4" if ARCH_LH7A40X
1253 default "2"
1254 depends on NEED_MULTIPLE_NODES
1255
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001256config HIGHMEM
1257 bool "High Memory Support (EXPERIMENTAL)"
1258 depends on MMU && EXPERIMENTAL
1259 help
1260 The address space of ARM processors is only 4 Gigabytes large
1261 and it has to accommodate user address space, kernel address
1262 space as well as some memory mapped IO. That means that, if you
1263 have a large amount of physical memory and/or IO, not all of the
1264 memory can be "permanently mapped" by the kernel. The physical
1265 memory that is not permanently mapped is called "high memory".
1266
1267 Depending on the selected kernel/user memory split, minimum
1268 vmalloc space and actual amount of RAM, you may not need this
1269 option which should result in a slightly faster kernel.
1270
1271 If unsure, say n.
1272
Russell King65cec8e2009-08-17 20:02:06 +01001273config HIGHPTE
1274 bool "Allocate 2nd-level pagetables from highmem"
1275 depends on HIGHMEM
1276 depends on !OUTER_CACHE
1277
Jamie Iles1b8873a2010-02-02 20:25:44 +01001278config HW_PERF_EVENTS
1279 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001280 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001281 default y
1282 help
1283 Enable hardware performance counter support for perf events. If
1284 disabled, perf events will use software events only.
1285
Dave Hansen3f22ab22005-06-23 00:07:43 -07001286source "mm/Kconfig"
1287
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288config LEDS
1289 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001290 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001291 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1293 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001294 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001295 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001296 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297 help
1298 If you say Y here, the LEDs on your machine will be used
1299 to provide useful information about your current system status.
1300
1301 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1302 be able to select which LEDs are active using the options below. If
1303 you are compiling a kernel for the EBSA-110 or the LART however, the
1304 red LED will simply flash regularly to indicate that the system is
1305 still functional. It is safe to say Y here if you have a CATS
1306 system, but the driver will do nothing.
1307
1308config LEDS_TIMER
1309 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001310 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1311 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001313 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314 default y if ARCH_EBSA110
1315 help
1316 If you say Y here, one of the system LEDs (the green one on the
1317 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1318 will flash regularly to indicate that the system is still
1319 operational. This is mainly useful to kernel hackers who are
1320 debugging unstable kernels.
1321
1322 The LART uses the same LED for both Timer LED and CPU usage LED
1323 functions. You may choose to use both, but the Timer LED function
1324 will overrule the CPU usage LED.
1325
1326config LEDS_CPU
1327 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001328 !ARCH_OMAP) \
1329 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1330 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331 depends on LEDS
1332 help
1333 If you say Y here, the red LED will be used to give a good real
1334 time indication of CPU usage, by lighting whenever the idle task
1335 is not currently executing.
1336
1337 The LART uses the same LED for both Timer LED and CPU usage LED
1338 functions. You may choose to use both, but the Timer LED function
1339 will overrule the CPU usage LED.
1340
1341config ALIGNMENT_TRAP
1342 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001343 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001345 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001347 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1349 address divisible by 4. On 32-bit ARM processors, these non-aligned
1350 fetch/store instructions will be emulated in software if you say
1351 here, which has a severe performance impact. This is necessary for
1352 correct operation of some network protocols. With an IP-only
1353 configuration it is safe to say N, otherwise say Y.
1354
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001355config UACCESS_WITH_MEMCPY
1356 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1357 depends on MMU && EXPERIMENTAL
1358 default y if CPU_FEROCEON
1359 help
1360 Implement faster copy_to_user and clear_user methods for CPU
1361 cores where a 8-word STM instruction give significantly higher
1362 memory write throughput than a sequence of individual 32bit stores.
1363
1364 A possible side effect is a slight increase in scheduling latency
1365 between threads sharing the same address space if they invoke
1366 such copy operations with large buffers.
1367
1368 However, if the CPU data cache is using a write-allocate mode,
1369 this option is unlikely to provide any performance gain.
1370
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371endmenu
1372
1373menu "Boot options"
1374
1375# Compressed boot loader in ROM. Yes, we really want to ask about
1376# TEXT and BSS so we preserve their values in the config files.
1377config ZBOOT_ROM_TEXT
1378 hex "Compressed ROM boot loader base address"
1379 default "0"
1380 help
1381 The physical address at which the ROM-able zImage is to be
1382 placed in the target. Platforms which normally make use of
1383 ROM-able zImage formats normally set this to a suitable
1384 value in their defconfig file.
1385
1386 If ZBOOT_ROM is not enabled, this has no effect.
1387
1388config ZBOOT_ROM_BSS
1389 hex "Compressed ROM boot loader BSS address"
1390 default "0"
1391 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001392 The base address of an area of read/write memory in the target
1393 for the ROM-able zImage which must be available while the
1394 decompressor is running. It must be large enough to hold the
1395 entire decompressed kernel plus an additional 128 KiB.
1396 Platforms which normally make use of ROM-able zImage formats
1397 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398
1399 If ZBOOT_ROM is not enabled, this has no effect.
1400
1401config ZBOOT_ROM
1402 bool "Compressed boot loader in ROM/flash"
1403 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1404 help
1405 Say Y here if you intend to execute your compressed kernel image
1406 (zImage) directly from ROM or flash. If unsure, say N.
1407
1408config CMDLINE
1409 string "Default kernel command string"
1410 default ""
1411 help
1412 On some architectures (EBSA110 and CATS), there is currently no way
1413 for the boot loader to pass arguments to the kernel. For these
1414 architectures, you should supply some command-line options at build
1415 time by entering them here. As a minimum, you should specify the
1416 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1417
1418config XIP_KERNEL
1419 bool "Kernel Execute-In-Place from ROM"
1420 depends on !ZBOOT_ROM
1421 help
1422 Execute-In-Place allows the kernel to run from non-volatile storage
1423 directly addressable by the CPU, such as NOR flash. This saves RAM
1424 space since the text section of the kernel is not loaded from flash
1425 to RAM. Read-write sections, such as the data section and stack,
1426 are still copied to RAM. The XIP kernel is not compressed since
1427 it has to run directly from flash, so it will take more space to
1428 store it. The flash address used to link the kernel object files,
1429 and for storing it, is configuration dependent. Therefore, if you
1430 say Y here, you must know the proper physical address where to
1431 store the kernel image depending on your own flash memory usage.
1432
1433 Also note that the make target becomes "make xipImage" rather than
1434 "make zImage" or "make Image". The final kernel binary to put in
1435 ROM memory will be arch/arm/boot/xipImage.
1436
1437 If unsure, say N.
1438
1439config XIP_PHYS_ADDR
1440 hex "XIP Kernel Physical Location"
1441 depends on XIP_KERNEL
1442 default "0x00080000"
1443 help
1444 This is the physical address in your flash memory the kernel will
1445 be linked for and stored to. This address is dependent on your
1446 own flash usage.
1447
Richard Purdiec587e4a2007-02-06 21:29:00 +01001448config KEXEC
1449 bool "Kexec system call (EXPERIMENTAL)"
1450 depends on EXPERIMENTAL
1451 help
1452 kexec is a system call that implements the ability to shutdown your
1453 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001454 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001455 you can start any kernel with it, not just Linux.
1456
1457 It is an ongoing process to be certain the hardware in a machine
1458 is properly shutdown, so do not be surprised if this code does not
1459 initially work for you. It may help to enable device hotplugging
1460 support.
1461
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001462config ATAGS_PROC
1463 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001464 depends on KEXEC
1465 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001466 help
1467 Should the atags used to boot the kernel be exported in an "atags"
1468 file in procfs. Useful with kexec.
1469
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470endmenu
1471
Russell Kingac9d7ef2008-08-18 17:26:00 +01001472menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
Ben Dooks89c52ed2009-07-30 23:23:24 +01001474if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475
1476source "drivers/cpufreq/Kconfig"
1477
1478config CPU_FREQ_SA1100
1479 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480
1481config CPU_FREQ_SA1110
1482 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483
1484config CPU_FREQ_INTEGRATOR
1485 tristate "CPUfreq driver for ARM Integrator CPUs"
1486 depends on ARCH_INTEGRATOR && CPU_FREQ
1487 default y
1488 help
1489 This enables the CPUfreq driver for ARM Integrator CPUs.
1490
1491 For details, take a look at <file:Documentation/cpu-freq>.
1492
1493 If in doubt, say Y.
1494
Russell King9e2697f2007-12-14 13:30:14 +00001495config CPU_FREQ_PXA
1496 bool
1497 depends on CPU_FREQ && ARCH_PXA && PXA25x
1498 default y
1499 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1500
Mark Brownb3748dd2009-06-15 11:23:20 +01001501config CPU_FREQ_S3C64XX
1502 bool "CPUfreq support for Samsung S3C64XX CPUs"
1503 depends on CPU_FREQ && CPU_S3C6410
1504
Ben Dooks9d56c022009-07-30 23:23:25 +01001505config CPU_FREQ_S3C
1506 bool
1507 help
1508 Internal configuration node for common cpufreq on Samsung SoC
1509
1510config CPU_FREQ_S3C24XX
1511 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1512 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1513 select CPU_FREQ_S3C
1514 help
1515 This enables the CPUfreq driver for the Samsung S3C24XX family
1516 of CPUs.
1517
1518 For details, take a look at <file:Documentation/cpu-freq>.
1519
1520 If in doubt, say N.
1521
1522config CPU_FREQ_S3C24XX_PLL
1523 bool "Support CPUfreq changing of PLL frequency"
1524 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1525 help
1526 Compile in support for changing the PLL frequency from the
1527 S3C24XX series CPUfreq driver. The PLL takes time to settle
1528 after a frequency change, so by default it is not enabled.
1529
1530 This also means that the PLL tables for the selected CPU(s) will
1531 be built which may increase the size of the kernel image.
1532
1533config CPU_FREQ_S3C24XX_DEBUG
1534 bool "Debug CPUfreq Samsung driver core"
1535 depends on CPU_FREQ_S3C24XX
1536 help
1537 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1538
1539config CPU_FREQ_S3C24XX_IODEBUG
1540 bool "Debug CPUfreq Samsung driver IO timing"
1541 depends on CPU_FREQ_S3C24XX
1542 help
1543 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1544
Ben Dookse6d197a2009-07-30 23:23:42 +01001545config CPU_FREQ_S3C24XX_DEBUGFS
1546 bool "Export debugfs for CPUFreq"
1547 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1548 help
1549 Export status information via debugfs.
1550
Linus Torvalds1da177e2005-04-16 15:20:36 -07001551endif
1552
Russell Kingac9d7ef2008-08-18 17:26:00 +01001553source "drivers/cpuidle/Kconfig"
1554
1555endmenu
1556
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557menu "Floating point emulation"
1558
1559comment "At least one emulation must be selected"
1560
1561config FPE_NWFPE
1562 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001563 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564 ---help---
1565 Say Y to include the NWFPE floating point emulator in the kernel.
1566 This is necessary to run most binaries. Linux does not currently
1567 support floating point hardware so you need to say Y here even if
1568 your machine has an FPA or floating point co-processor podule.
1569
1570 You may say N here if you are going to load the Acorn FPEmulator
1571 early in the bootup.
1572
1573config FPE_NWFPE_XP
1574 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001575 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576 help
1577 Say Y to include 80-bit support in the kernel floating-point
1578 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1579 Note that gcc does not generate 80-bit operations by default,
1580 so in most cases this option only enlarges the size of the
1581 floating point emulator without any good reason.
1582
1583 You almost surely want to say N here.
1584
1585config FPE_FASTFPE
1586 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001587 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588 ---help---
1589 Say Y here to include the FAST floating point emulator in the kernel.
1590 This is an experimental much faster emulator which now also has full
1591 precision for the mantissa. It does not support any exceptions.
1592 It is very simple, and approximately 3-6 times faster than NWFPE.
1593
1594 It should be sufficient for most programs. It may be not suitable
1595 for scientific calculations, but you have to check this for yourself.
1596 If you do not feel you need a faster FP emulation you should better
1597 choose NWFPE.
1598
1599config VFP
1600 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001601 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602 help
1603 Say Y to include VFP support code in the kernel. This is needed
1604 if your hardware includes a VFP unit.
1605
1606 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1607 release notes and additional status information.
1608
1609 Say N if your target does not have VFP hardware.
1610
Catalin Marinas25ebee02007-09-25 15:22:24 +01001611config VFPv3
1612 bool
1613 depends on VFP
1614 default y if CPU_V7
1615
Catalin Marinasb5872db2008-01-10 19:16:17 +01001616config NEON
1617 bool "Advanced SIMD (NEON) Extension support"
1618 depends on VFPv3 && CPU_V7
1619 help
1620 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1621 Extension.
1622
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623endmenu
1624
1625menu "Userspace binary formats"
1626
1627source "fs/Kconfig.binfmt"
1628
1629config ARTHUR
1630 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001631 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001632 help
1633 Say Y here to include the kernel code necessary if you want to run
1634 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1635 experimental; if this sounds frightening, say N and sleep in peace.
1636 You can also say M here to compile this support as a module (which
1637 will be called arthur).
1638
1639endmenu
1640
1641menu "Power management options"
1642
Russell Kingeceab4a2005-11-15 11:31:41 +00001643source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644
Johannes Bergf4cb5702007-12-08 02:14:00 +01001645config ARCH_SUSPEND_POSSIBLE
1646 def_bool y
1647
Linus Torvalds1da177e2005-04-16 15:20:36 -07001648endmenu
1649
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001650source "net/Kconfig"
1651
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001652source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001653
1654source "fs/Kconfig"
1655
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656source "arch/arm/Kconfig.debug"
1657
1658source "security/Kconfig"
1659
1660source "crypto/Kconfig"
1661
1662source "lib/Kconfig"