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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
Russell Kingc5a0adb2010-01-16 20:16:10 +0000243 select ICST
Russell Kingb9cedda2010-01-15 18:10:33 +0000244 select GENERIC_TIME
Russell King13edd862010-01-15 21:49:23 +0000245 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000246 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 help
248 Support for ARM's Integrator platform.
249
250config ARCH_REALVIEW
251 bool "ARM Ltd. RealView family"
252 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700253 select HAVE_CLK
Russell Kingcf30fb42008-11-08 20:05:55 +0000254 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000255 select ICST
Catalin Marinas85802af2008-02-04 17:24:54 +0100256 select GENERIC_TIME
Catalin Marinasae30cea2008-02-04 17:26:55 +0100257 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100258 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000259 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000260 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 This enables support for ARM Ltd RealView boards.
263
264config ARCH_VERSATILE
265 bool "ARM Ltd. Versatile family"
266 select ARM_AMBA
267 select ARM_VIC
David Brownell9483a572008-07-23 21:26:48 -0700268 select HAVE_CLK
Russell King71a06da2008-11-08 20:13:53 +0000269 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000270 select ICST
Kevin Hilmanb49c87c2007-03-08 20:25:13 +0100271 select GENERIC_TIME
Kevin Hilman89df1272007-03-08 20:30:38 +0100272 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100273 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000274 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000275 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100276 help
277 This enables support for ARM Ltd Versatile board.
278
Russell Kingceade892010-02-11 21:44:53 +0000279config ARCH_VEXPRESS
280 bool "ARM Ltd. Versatile Express family"
281 select ARCH_WANT_OPTIONAL_GPIOLIB
282 select ARM_AMBA
283 select ARM_TIMER_SP804
284 select COMMON_CLKDEV
285 select GENERIC_CLOCKEVENTS
286 select GENERIC_TIME
287 select HAVE_CLK
288 select ICST
289 select PLAT_VERSATILE
290 help
291 This enables support for the ARM Ltd Versatile Express boards.
292
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100293config ARCH_AT91
294 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800295 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100296 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700297 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100298 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100299 This enables support for systems based on the Atmel AT91RM9200,
300 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301
Russell Kingccf50e22010-03-15 19:03:06 +0000302config ARCH_BCMRING
303 bool "Broadcom BCMRING"
304 depends on MMU
305 select CPU_V6
306 select ARM_AMBA
307 select COMMON_CLKDEV
308 select GENERIC_TIME
309 select GENERIC_CLOCKEVENTS
310 select ARCH_WANT_OPTIONAL_GPIOLIB
311 help
312 Support for Broadcom's BCMRing platform.
313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100315 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000316 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000317 help
318 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Russell King788c9702009-04-26 14:21:59 +0100320config ARCH_GEMINI
321 bool "Cortina Systems Gemini"
322 select CPU_FA526
323 select GENERIC_GPIO
324 select ARCH_REQUIRE_GPIOLIB
325 help
326 Support for the Cortina Systems Gemini family SoCs
327
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328config ARCH_EBSA110
329 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000330 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100331 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000332 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 help
334 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000335 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 Ethernet interface, two PCMCIA sockets, two serial ports and a
337 parallel port.
338
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000339config ARCH_EP93XX
340 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000341 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000342 select ARM_AMBA
343 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100344 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700345 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000346 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700347 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100348 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000349 help
350 This enables support for the Cirrus EP93xx series of CPUs.
351
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352config ARCH_FOOTBRIDGE
353 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000356 help
357 Support for systems based on the DC21285 companion chip
358 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
Russell King788c9702009-04-26 14:21:59 +0100360config ARCH_MXC
361 bool "Freescale MXC/iMX-based"
362 select GENERIC_TIME
363 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100364 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100365 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100366 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100367 help
368 Support for Freescale MXC/iMX-based family of processors
369
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100370config ARCH_STMP3XXX
371 bool "Freescale STMP3xxx"
372 select CPU_ARM926T
373 select HAVE_CLK
374 select COMMON_CLKDEV
375 select ARCH_REQUIRE_GPIOLIB
376 select GENERIC_TIME
377 select GENERIC_CLOCKEVENTS
378 select GENERIC_GPIO
379 select USB_ARCH_HAS_EHCI
380 help
381 Support for systems based on the Freescale 3xxx CPUs.
382
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383config ARCH_NETX
384 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000385 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100386 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100387 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100388 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000389 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100390 This enables support for systems based on the Hilscher NetX Soc
391
392config ARCH_H720X
393 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100395 select ISA_DMA_API
396 help
397 This enables support for systems based on the Hynix HMS720x
398
Russell King3b938be2007-05-12 11:25:44 +0100399config ARCH_IOP13XX
400 bool "IOP13xx-based"
401 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000402 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100403 select PLAT_IOP
404 select PCI
405 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100406 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100407 help
408 Support for Intel's IOP13XX (XScale) family of processors.
409
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100410config ARCH_IOP32X
411 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100412 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000413 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100414 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100415 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100416 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100417 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000418 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100419 Support for Intel's 80219 and IOP32X (XScale) family of
420 processors.
421
422config ARCH_IOP33X
423 bool "IOP33x-based"
424 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100426 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100427 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100428 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100429 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100430 help
431 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Russell King3b938be2007-05-12 11:25:44 +0100433config ARCH_IXP23XX
434 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100435 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100437 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100438 help
Russell King3b938be2007-05-12 11:25:44 +0100439 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
441config ARCH_IXP2000
442 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100445 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000446 help
447 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448
Russell King3b938be2007-05-12 11:25:44 +0100449config ARCH_IXP4XX
450 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100451 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000452 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100453 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100454 select GENERIC_TIME
455 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100456 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100457 help
Russell King3b938be2007-05-12 11:25:44 +0100458 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100459
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460config ARCH_L7200
461 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 select FIQ
464 help
465 Say Y here if you intend to run this kernel on a LinkUp Systems
466 L7200 Software Development Board which uses an ARM720T processor.
467 Information on this board can be obtained at:
468
469 <http://www.linkupsys.com/>
470
471 If you have any questions or comments about the Linux kernel port
472 to this board, send e-mail to <sjhill@cotw.com>.
473
Saeed Bisharaedabd382009-08-06 15:12:43 +0300474config ARCH_DOVE
475 bool "Marvell Dove"
476 select PCI
477 select GENERIC_GPIO
478 select ARCH_REQUIRE_GPIOLIB
479 select GENERIC_TIME
480 select GENERIC_CLOCKEVENTS
481 select PLAT_ORION
482 help
483 Support for the Marvell Dove SoC 88AP510
484
Saeed Bishara651c74c2008-06-22 22:45:06 +0200485config ARCH_KIRKWOOD
486 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000487 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200488 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200489 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700490 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
493 select PLAT_ORION
494 help
495 Support for the following Marvell Kirkwood series SoCs:
496 88F6180, 88F6192 and 88F6281.
497
Russell King788c9702009-04-26 14:21:59 +0100498config ARCH_LOKI
499 bool "Marvell Loki (88RC8480)"
500 select CPU_FEROCEON
501 select GENERIC_TIME
502 select GENERIC_CLOCKEVENTS
503 select PLAT_ORION
504 help
505 Support for the Marvell Loki (88RC8480) SoC.
506
507config ARCH_MV78XX0
508 bool "Marvell MV78xx0"
509 select CPU_FEROCEON
510 select PCI
511 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700512 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100513 select GENERIC_TIME
514 select GENERIC_CLOCKEVENTS
515 select PLAT_ORION
516 help
517 Support for the following Marvell MV78xx0 series SoCs:
518 MV781x0, MV782x0.
519
520config ARCH_ORION5X
521 bool "Marvell Orion"
522 depends on MMU
523 select CPU_FEROCEON
524 select PCI
525 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700526 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100527 select GENERIC_TIME
528 select GENERIC_CLOCKEVENTS
529 select PLAT_ORION
530 help
531 Support for the following Marvell Orion 5x series SoCs:
532 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
533 Orion-2 (5281), Orion-1-90 (6183).
534
535config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500536 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100537 depends on MMU
538 select GENERIC_GPIO
539 select ARCH_REQUIRE_GPIOLIB
540 select HAVE_CLK
541 select COMMON_CLKDEV
542 select GENERIC_TIME
543 select GENERIC_CLOCKEVENTS
544 select TICK_ONESHOT
545 select PLAT_PXA
546 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500547 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100548
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100549config ARCH_KS8695
550 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000551 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100552 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000553 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100554 help
555 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
556 System-on-Chip devices.
557
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100558config ARCH_NS9XXX
559 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000560 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100561 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100562 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100563 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700564 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100565 help
566 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
567 System.
568
569 <http://www.digi.com/products/microprocessors/index.jsp>
570
Russell King788c9702009-04-26 14:21:59 +0100571config ARCH_W90X900
572 bool "Nuvoton W90X900 CPU"
573 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100574 select ARCH_REQUIRE_GPIOLIB
575 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100576 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100577 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100578 select GENERIC_TIME
579 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200580 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100581 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
582 At present, the w90x900 has been renamed nuc900, regarding
583 the ARM series product line, you can login the following
584 link address to know more.
585
586 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
587 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400588
wanzongshuna62e9032009-12-31 15:06:05 +0100589config ARCH_NUC93X
590 bool "Nuvoton NUC93X CPU"
591 select CPU_ARM926T
592 select HAVE_CLK
593 select COMMON_CLKDEV
594 help
595 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
596 low-power and high performance MPEG-4/JPEG multimedia controller chip.
597
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100598config ARCH_PNX4008
599 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000600 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700601 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000602 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100603 help
604 This enables support for Philips PNX4008 mobile platform.
605
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700607 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100608 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500609 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100610 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800611 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700612 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000613 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700614 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100615 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100616 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000617 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800618 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000619 help
eric miao2c8086a2007-09-11 19:13:17 -0700620 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_MSM
623 bool "Qualcomm MSM"
624 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800625 select GENERIC_TIME
626 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800627 help
Russell King788c9702009-04-26 14:21:59 +0100628 Support for Qualcomm MSM7K based systems. This runs on the ARM11
629 apps processor of the MSM7K and depends on a shared memory
630 interface to the ARM9 modem processor which runs the baseband stack
631 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800632
Magnus Dammc793c1b2010-02-05 11:14:49 +0000633config ARCH_SHMOBILE
634 bool "Renesas SH-Mobile"
635 help
636 Support for Renesas's SH-Mobile ARM platforms
637
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638config ARCH_RPC
639 bool "RiscPC"
640 select ARCH_ACORN
641 select FIQ
642 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100643 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100644 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000645 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000646 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100647 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 help
649 On the Acorn Risc-PC, Linux can support the internal IDE disk and
650 CD-ROM interface, serial and parallel port, and the floppy drive.
651
652config ARCH_SA1100
653 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000654 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100655 select ISA
Russell King05944d72006-11-30 20:43:51 +0000656 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500657 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100658 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000659 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800660 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000661 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100662 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700663 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100664 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700665 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000666 help
667 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668
669config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100670 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800671 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100672 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700673 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674 help
675 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
676 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000677 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678
Ben Dooksa08ab632008-10-21 14:06:39 +0100679config ARCH_S3C64XX
680 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000681 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900682 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100683 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900684 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100685 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900686 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100687 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900688 select ARCH_REQUIRE_GPIOLIB
689 select SAMSUNG_CLKSRC
690 select SAMSUNG_IRQ_VIC_TIMER
691 select SAMSUNG_IRQ_UART
692 select S3C_GPIO_TRACK
693 select S3C_GPIO_PULL_UPDOWN
694 select S3C_GPIO_CFG_S3C24XX
695 select S3C_GPIO_CFG_S3C64XX
696 select S3C_DEV_NAND
697 select USB_ARCH_HAS_OHCI
698 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100699 help
700 Samsung S3C64XX series based systems
701
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900702config ARCH_S5P6440
703 bool "Samsung S5P6440"
704 select CPU_V6
705 select GENERIC_GPIO
706 select HAVE_CLK
707 help
708 Samsung S5P6440 CPU based systems
709
Kukjin Kim550db7f2010-01-29 10:19:26 +0900710config ARCH_S5P6442
711 bool "Samsung S5P6442"
712 select CPU_V6
713 select GENERIC_GPIO
714 select HAVE_CLK
715 help
716 Samsung S5P6442 CPU based systems
717
Byungho Min5a7652f2009-06-23 21:39:42 +0900718config ARCH_S5PC1XX
719 bool "Samsung S5PC1XX"
720 select GENERIC_GPIO
721 select HAVE_CLK
722 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100723 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900724 help
725 Samsung S5PC1XX series based systems
726
Kukjin Kim170f4e42010-02-24 16:40:44 +0900727config ARCH_S5PV210
728 bool "Samsung S5PV210/S5PC110"
729 select CPU_V7
730 select GENERIC_GPIO
731 select HAVE_CLK
732 select ARM_L1_CACHE_SHIFT_6
733 help
734 Samsung S5PV210/S5PC110 series based systems
735
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736config ARCH_SHARK
737 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000738 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100739 select ISA
740 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100741 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100742 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000743 help
744 Support for the StrongARM based Digital DNARD machine, also known
745 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746
747config ARCH_LH7A40X
748 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000749 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100750 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
751 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 help
753 Say Y here for systems based on one of the Sharp LH7A40X
754 System on a Chip processors. These CPUs include an ARM922T
755 core with a wide array of integrated devices for
756 hand-held and low-power applications.
757
Linus Walleijd98aac72009-04-27 10:21:46 +0100758config ARCH_U300
759 bool "ST-Ericsson U300 Series"
760 depends on MMU
761 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100762 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100763 select ARM_AMBA
764 select ARM_VIC
765 select GENERIC_TIME
766 select GENERIC_CLOCKEVENTS
767 select HAVE_CLK
768 select COMMON_CLKDEV
769 select GENERIC_GPIO
770 help
771 Support for ST-Ericsson U300 series mobile platforms.
772
Russell Kingccf50e22010-03-15 19:03:06 +0000773config ARCH_U8500
774 bool "ST-Ericsson U8500 Series"
775 select CPU_V7
776 select ARM_AMBA
777 select GENERIC_TIME
778 select GENERIC_CLOCKEVENTS
779 select COMMON_CLKDEV
780 help
781 Support for ST-Ericsson's Ux500 architecture
782
783config ARCH_NOMADIK
784 bool "STMicroelectronics Nomadik"
785 select ARM_AMBA
786 select ARM_VIC
787 select CPU_ARM926T
788 select HAVE_CLK
789 select COMMON_CLKDEV
790 select GENERIC_TIME
791 select GENERIC_CLOCKEVENTS
792 select GENERIC_GPIO
793 select ARCH_REQUIRE_GPIOLIB
794 help
795 Support for the Nomadik platform by ST-Ericsson
796
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100797config ARCH_DAVINCI
798 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000799 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100800 select GENERIC_TIME
801 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100802 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700803 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700804 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100805 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700806 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700807 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700808 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530809 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100810 help
811 Support for TI's DaVinci platform.
812
Russell King3b938be2007-05-12 11:25:44 +0100813config ARCH_OMAP
814 bool "TI OMAP"
815 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700816 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700817 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100818 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100819 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700820 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800821 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100822 help
823 Support for TI's OMAP platform (OMAP1 and OMAP2).
824
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825endchoice
826
Russell Kingccf50e22010-03-15 19:03:06 +0000827#
828# This is sorted alphabetically by mach-* pathname. However, plat-*
829# Kconfigs may be included either alphabetically (according to the
830# plat- suffix) or along side the corresponding mach-* source.
831#
Russell King95b8f202010-01-14 11:43:54 +0000832source "arch/arm/mach-aaec2000/Kconfig"
833
834source "arch/arm/mach-at91/Kconfig"
835
836source "arch/arm/mach-bcmring/Kconfig"
837
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838source "arch/arm/mach-clps711x/Kconfig"
839
Russell King95b8f202010-01-14 11:43:54 +0000840source "arch/arm/mach-davinci/Kconfig"
841
842source "arch/arm/mach-dove/Kconfig"
843
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000844source "arch/arm/mach-ep93xx/Kconfig"
845
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846source "arch/arm/mach-footbridge/Kconfig"
847
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200848source "arch/arm/mach-gemini/Kconfig"
849
Russell King95b8f202010-01-14 11:43:54 +0000850source "arch/arm/mach-h720x/Kconfig"
851
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852source "arch/arm/mach-integrator/Kconfig"
853
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100854source "arch/arm/mach-iop32x/Kconfig"
855
856source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857
Dan Williams285f5fa2006-12-07 02:59:39 +0100858source "arch/arm/mach-iop13xx/Kconfig"
859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860source "arch/arm/mach-ixp4xx/Kconfig"
861
862source "arch/arm/mach-ixp2000/Kconfig"
863
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100864source "arch/arm/mach-ixp23xx/Kconfig"
865
Russell King95b8f202010-01-14 11:43:54 +0000866source "arch/arm/mach-kirkwood/Kconfig"
867
868source "arch/arm/mach-ks8695/Kconfig"
869
870source "arch/arm/mach-lh7a40x/Kconfig"
871
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200872source "arch/arm/mach-loki/Kconfig"
873
Russell King95b8f202010-01-14 11:43:54 +0000874source "arch/arm/mach-msm/Kconfig"
875
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200876source "arch/arm/mach-mv78xx0/Kconfig"
877
Russell King95b8f202010-01-14 11:43:54 +0000878source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879
Russell King95b8f202010-01-14 11:43:54 +0000880source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800881
Russell King95b8f202010-01-14 11:43:54 +0000882source "arch/arm/mach-nomadik/Kconfig"
883source "arch/arm/plat-nomadik/Kconfig"
884
885source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
Russell Kingd91a89102010-02-04 18:13:17 +0000887source "arch/arm/mach-nuc93x/Kconfig"
888
Tony Lindgrend48af152005-07-10 19:58:17 +0100889source "arch/arm/plat-omap/Kconfig"
890
891source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892
Tony Lindgren1dbae812005-11-10 14:26:51 +0000893source "arch/arm/mach-omap2/Kconfig"
894
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400895source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400896
Russell King95b8f202010-01-14 11:43:54 +0000897source "arch/arm/mach-pxa/Kconfig"
898source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-mmp/Kconfig"
901
902source "arch/arm/mach-realview/Kconfig"
903
904source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300905
Ben Dookscf383672009-11-10 00:14:58 +0000906source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100907source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900908source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900909source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100910
911if ARCH_S3C2410
912source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100914source "arch/arm/mach-s3c2412/Kconfig"
915source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100916source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100917endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Ben Dooksa08ab632008-10-21 14:06:39 +0100919if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900920source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100921endif
922
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900923source "arch/arm/mach-s5p6440/Kconfig"
924
Kukjin Kim550db7f2010-01-29 10:19:26 +0900925source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100926
Byungho Min5a7652f2009-06-23 21:39:42 +0900927if ARCH_S5PC1XX
928source "arch/arm/mach-s5pc100/Kconfig"
929endif
930
Kukjin Kim170f4e42010-02-24 16:40:44 +0900931source "arch/arm/mach-s5pv210/Kconfig"
932
Russell King882d01f2010-03-02 23:40:15 +0000933source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
Russell King882d01f2010-03-02 23:40:15 +0000935source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800936
Russell King95b8f202010-01-14 11:43:54 +0000937source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
941source "arch/arm/mach-versatile/Kconfig"
942
Russell Kingceade892010-02-11 21:44:53 +0000943source "arch/arm/mach-vexpress/Kconfig"
944
wanzongshun7ec80dd2008-12-03 03:55:38 +0100945source "arch/arm/mach-w90x900/Kconfig"
946
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947# Definitions to make life easier
948config ARCH_ACORN
949 bool
950
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100951config PLAT_IOP
952 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700953 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700954 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100955
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400956config PLAT_ORION
957 bool
958
Eric Miaobd5ce432009-01-20 12:06:01 +0800959config PLAT_PXA
960 bool
961
Russell Kingf4b8b312010-01-14 12:48:06 +0000962config PLAT_VERSATILE
963 bool
964
Russell Kinge3887712010-01-14 13:30:16 +0000965config ARM_TIMER_SP804
966 bool
967
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968source arch/arm/mm/Kconfig
969
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100970config IWMMXT
971 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800972 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
973 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100974 help
975 Enable support for iWMMXt context switching at run time if
976 running on a CPU that supports it.
977
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
979config XSCALE_PMU
980 bool
981 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
982 default y
983
Jamie Iles0f4f0672010-02-02 20:23:15 +0100984config CPU_HAS_PMU
985 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
986 default y
987 bool
988
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100989if !MMU
990source "arch/arm/Kconfig-nommu"
991endif
992
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100993config ARM_ERRATA_411920
994 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
995 depends on CPU_V6 && !SMP
996 help
997 Invalidation of the Instruction Cache operation can
998 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
999 It does not affect the MPCore. This option enables the ARM Ltd.
1000 recommended workaround.
1001
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001002config ARM_ERRATA_430973
1003 bool "ARM errata: Stale prediction on replaced interworking branch"
1004 depends on CPU_V7
1005 help
1006 This option enables the workaround for the 430973 Cortex-A8
1007 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1008 interworking branch is replaced with another code sequence at the
1009 same virtual address, whether due to self-modifying code or virtual
1010 to physical address re-mapping, Cortex-A8 does not recover from the
1011 stale interworking branch prediction. This results in Cortex-A8
1012 executing the new code sequence in the incorrect ARM or Thumb state.
1013 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1014 and also flushes the branch target cache at every context switch.
1015 Note that setting specific bits in the ACTLR register may not be
1016 available in non-secure mode.
1017
Catalin Marinas855c5512009-04-30 17:06:15 +01001018config ARM_ERRATA_458693
1019 bool "ARM errata: Processor deadlock when a false hazard is created"
1020 depends on CPU_V7
1021 help
1022 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1023 erratum. For very specific sequences of memory operations, it is
1024 possible for a hazard condition intended for a cache line to instead
1025 be incorrectly associated with a different cache line. This false
1026 hazard might then cause a processor deadlock. The workaround enables
1027 the L1 caching of the NEON accesses and disables the PLD instruction
1028 in the ACTLR register. Note that setting specific bits in the ACTLR
1029 register may not be available in non-secure mode.
1030
Catalin Marinas0516e462009-04-30 17:06:20 +01001031config ARM_ERRATA_460075
1032 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1033 depends on CPU_V7
1034 help
1035 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1036 erratum. Any asynchronous access to the L2 cache may encounter a
1037 situation in which recent store transactions to the L2 cache are lost
1038 and overwritten with stale memory contents from external memory. The
1039 workaround disables the write-allocate mode for the L2 cache via the
1040 ACTLR register. Note that setting specific bits in the ACTLR register
1041 may not be available in non-secure mode.
1042
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001043config PL310_ERRATA_588369
1044 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1045 depends on CACHE_L2X0 && ARCH_OMAP4
1046 help
1047 The PL310 L2 cache controller implements three types of Clean &
1048 Invalidate maintenance operations: by Physical Address
1049 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1050 They are architecturally defined to behave as the execution of a
1051 clean operation followed immediately by an invalidate operation,
1052 both performing to the same memory location. This functionality
1053 is not correctly implemented in PL310 as clean lines are not
1054 invalidated as a result of these operations. Note that this errata
1055 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056endmenu
1057
1058source "arch/arm/common/Kconfig"
1059
1060config FORCE_MAX_ZONEORDER
1061 int
1062 depends on SA1111
1063 default "9"
1064
1065menu "Bus support"
1066
1067config ARM_AMBA
1068 bool
1069
1070config ISA
1071 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072 help
1073 Find out whether you have ISA slots on your motherboard. ISA is the
1074 name of a bus system, i.e. the way the CPU talks to the other stuff
1075 inside your box. Other bus systems are PCI, EISA, MicroChannel
1076 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1077 newer boards don't support it. If you have ISA, say Y, otherwise N.
1078
Russell King065909b2006-01-04 15:44:16 +00001079# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080config ISA_DMA
1081 bool
Russell King065909b2006-01-04 15:44:16 +00001082 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Russell King065909b2006-01-04 15:44:16 +00001084# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001085config ISA_DMA_API
1086 bool
Al Viro5cae8412005-05-04 05:39:22 +01001087
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001089 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 help
1091 Find out whether you have a PCI motherboard. PCI is the name of a
1092 bus system, i.e. the way the CPU talks to the other stuff inside
1093 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1094 VESA. If you have PCI, say Y, otherwise N.
1095
Matthew Wilcox36e23592007-07-10 10:54:40 -06001096config PCI_SYSCALL
1097 def_bool PCI
1098
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099# Select the host bridge type
1100config PCI_HOST_VIA82C505
1101 bool
1102 depends on PCI && ARCH_SHARK
1103 default y
1104
Mike Rapoporta0113a92007-11-25 08:55:34 +01001105config PCI_HOST_ITE8152
1106 bool
1107 depends on PCI && MACH_ARMCORE
1108 default y
1109 select DMABOUNCE
1110
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111source "drivers/pci/Kconfig"
1112
1113source "drivers/pcmcia/Kconfig"
1114
1115endmenu
1116
1117menu "Kernel Features"
1118
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001119source "kernel/time/Kconfig"
1120
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121config SMP
1122 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001123 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001124 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001125 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001126 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001127 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 help
1129 This enables support for systems with more than one CPU. If you have
1130 a system with only one CPU, like most personal computers, say N. If
1131 you have a system with more than one CPU, say Y.
1132
1133 If you say N here, the kernel will run on single and multiprocessor
1134 machines, but will use only one CPU of a multiprocessor machine. If
1135 you say Y here, the kernel will run on many, but not all, single
1136 processor machines. On a single processor machine, the kernel will
1137 run faster if you say N here.
1138
Adrian Bunk03502fa2008-02-03 15:50:21 +02001139 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1141 <http://www.linuxdoc.org/docs.html#howto>.
1142
1143 If you don't know what to do here, say N.
1144
Russell Kinga8cbcd92009-05-16 11:51:14 +01001145config HAVE_ARM_SCU
1146 bool
1147 depends on SMP
1148 help
1149 This option enables support for the ARM system coherency unit
1150
Russell Kingf32f4ce2009-05-16 12:14:21 +01001151config HAVE_ARM_TWD
1152 bool
1153 depends on SMP
1154 help
1155 This options enables support for the ARM timer and watchdog unit
1156
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001157choice
1158 prompt "Memory split"
1159 default VMSPLIT_3G
1160 help
1161 Select the desired split between kernel and user memory.
1162
1163 If you are not absolutely sure what you are doing, leave this
1164 option alone!
1165
1166 config VMSPLIT_3G
1167 bool "3G/1G user/kernel split"
1168 config VMSPLIT_2G
1169 bool "2G/2G user/kernel split"
1170 config VMSPLIT_1G
1171 bool "1G/3G user/kernel split"
1172endchoice
1173
1174config PAGE_OFFSET
1175 hex
1176 default 0x40000000 if VMSPLIT_1G
1177 default 0x80000000 if VMSPLIT_2G
1178 default 0xC0000000
1179
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180config NR_CPUS
1181 int "Maximum number of CPUs (2-32)"
1182 range 2 32
1183 depends on SMP
1184 default "4"
1185
Russell Kinga054a812005-11-02 22:24:33 +00001186config HOTPLUG_CPU
1187 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1188 depends on SMP && HOTPLUG && EXPERIMENTAL
1189 help
1190 Say Y here to experiment with turning CPUs off and on. CPUs
1191 can be controlled through /sys/devices/system/cpu.
1192
Russell King37ee16a2005-11-08 19:08:05 +00001193config LOCAL_TIMERS
1194 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001195 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001196 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001197 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001198 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001199 help
1200 Enable support for local timers on SMP platforms, rather then the
1201 legacy IPI broadcast method. Local timers allows the system
1202 accounting to be spread across the timer interval, preventing a
1203 "thundering herd" at every timer tick.
1204
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001205source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Russell Kingf8065812006-03-02 22:41:59 +00001207config HZ
1208 int
1209 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001210 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001211 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001212 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001213 default 100
1214
Catalin Marinas16c79652009-07-24 12:33:02 +01001215config THUMB2_KERNEL
1216 bool "Compile the kernel in Thumb-2 mode"
1217 depends on CPU_V7 && EXPERIMENTAL
1218 select AEABI
1219 select ARM_ASM_UNIFIED
1220 help
1221 By enabling this option, the kernel will be compiled in
1222 Thumb-2 mode. A compiler/assembler that understand the unified
1223 ARM-Thumb syntax is needed.
1224
1225 If unsure, say N.
1226
Catalin Marinas0becb082009-07-24 12:32:53 +01001227config ARM_ASM_UNIFIED
1228 bool
1229
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001230config AEABI
1231 bool "Use the ARM EABI to compile the kernel"
1232 help
1233 This option allows for the kernel to be compiled using the latest
1234 ARM ABI (aka EABI). This is only useful if you are using a user
1235 space environment that is also compiled with EABI.
1236
1237 Since there are major incompatibilities between the legacy ABI and
1238 EABI, especially with regard to structure member alignment, this
1239 option also changes the kernel syscall calling convention to
1240 disambiguate both ABIs and allow for backward compatibility support
1241 (selected with CONFIG_OABI_COMPAT).
1242
1243 To use this you need GCC version 4.0.0 or later.
1244
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001245config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001246 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001247 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001248 default y
1249 help
1250 This option preserves the old syscall interface along with the
1251 new (ARM EABI) one. It also provides a compatibility layer to
1252 intercept syscalls that have structure arguments which layout
1253 in memory differs between the legacy ABI and the new ARM EABI
1254 (only for non "thumb" binaries). This option adds a tiny
1255 overhead to all syscalls and produces a slightly larger kernel.
1256 If you know you'll be using only pure EABI user space then you
1257 can say N here. If this option is not selected and you attempt
1258 to execute a legacy ABI binary then the result will be
1259 UNPREDICTABLE (in fact it can be predicted that it won't work
1260 at all). If in doubt say Y.
1261
Mel Gormaneb335752009-05-13 17:34:48 +01001262config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001263 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001264
Russell King07a2f732008-10-01 21:39:58 +01001265# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001266config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268
Russell King05944d72006-11-30 20:43:51 +00001269config ARCH_SPARSEMEM_ENABLE
1270 bool
1271
Russell King07a2f732008-10-01 21:39:58 +01001272config ARCH_SPARSEMEM_DEFAULT
1273 def_bool ARCH_SPARSEMEM_ENABLE
1274
Russell King05944d72006-11-30 20:43:51 +00001275config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001276 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001277
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001278config NODES_SHIFT
1279 int
1280 default "4" if ARCH_LH7A40X
1281 default "2"
1282 depends on NEED_MULTIPLE_NODES
1283
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001284config HIGHMEM
1285 bool "High Memory Support (EXPERIMENTAL)"
1286 depends on MMU && EXPERIMENTAL
1287 help
1288 The address space of ARM processors is only 4 Gigabytes large
1289 and it has to accommodate user address space, kernel address
1290 space as well as some memory mapped IO. That means that, if you
1291 have a large amount of physical memory and/or IO, not all of the
1292 memory can be "permanently mapped" by the kernel. The physical
1293 memory that is not permanently mapped is called "high memory".
1294
1295 Depending on the selected kernel/user memory split, minimum
1296 vmalloc space and actual amount of RAM, you may not need this
1297 option which should result in a slightly faster kernel.
1298
1299 If unsure, say n.
1300
Russell King65cec8e2009-08-17 20:02:06 +01001301config HIGHPTE
1302 bool "Allocate 2nd-level pagetables from highmem"
1303 depends on HIGHMEM
1304 depends on !OUTER_CACHE
1305
Jamie Iles1b8873a2010-02-02 20:25:44 +01001306config HW_PERF_EVENTS
1307 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001308 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001309 default y
1310 help
1311 Enable hardware performance counter support for perf events. If
1312 disabled, perf events will use software events only.
1313
Dave Hansen3f22ab22005-06-23 00:07:43 -07001314source "mm/Kconfig"
1315
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316config LEDS
1317 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001318 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001319 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1321 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001322 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001323 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001324 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 help
1326 If you say Y here, the LEDs on your machine will be used
1327 to provide useful information about your current system status.
1328
1329 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1330 be able to select which LEDs are active using the options below. If
1331 you are compiling a kernel for the EBSA-110 or the LART however, the
1332 red LED will simply flash regularly to indicate that the system is
1333 still functional. It is safe to say Y here if you have a CATS
1334 system, but the driver will do nothing.
1335
1336config LEDS_TIMER
1337 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001338 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1339 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001341 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342 default y if ARCH_EBSA110
1343 help
1344 If you say Y here, one of the system LEDs (the green one on the
1345 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1346 will flash regularly to indicate that the system is still
1347 operational. This is mainly useful to kernel hackers who are
1348 debugging unstable kernels.
1349
1350 The LART uses the same LED for both Timer LED and CPU usage LED
1351 functions. You may choose to use both, but the Timer LED function
1352 will overrule the CPU usage LED.
1353
1354config LEDS_CPU
1355 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001356 !ARCH_OMAP) \
1357 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1358 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359 depends on LEDS
1360 help
1361 If you say Y here, the red LED will be used to give a good real
1362 time indication of CPU usage, by lighting whenever the idle task
1363 is not currently executing.
1364
1365 The LART uses the same LED for both Timer LED and CPU usage LED
1366 functions. You may choose to use both, but the Timer LED function
1367 will overrule the CPU usage LED.
1368
1369config ALIGNMENT_TRAP
1370 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001371 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001373 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001375 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1377 address divisible by 4. On 32-bit ARM processors, these non-aligned
1378 fetch/store instructions will be emulated in software if you say
1379 here, which has a severe performance impact. This is necessary for
1380 correct operation of some network protocols. With an IP-only
1381 configuration it is safe to say N, otherwise say Y.
1382
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001383config UACCESS_WITH_MEMCPY
1384 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1385 depends on MMU && EXPERIMENTAL
1386 default y if CPU_FEROCEON
1387 help
1388 Implement faster copy_to_user and clear_user methods for CPU
1389 cores where a 8-word STM instruction give significantly higher
1390 memory write throughput than a sequence of individual 32bit stores.
1391
1392 A possible side effect is a slight increase in scheduling latency
1393 between threads sharing the same address space if they invoke
1394 such copy operations with large buffers.
1395
1396 However, if the CPU data cache is using a write-allocate mode,
1397 this option is unlikely to provide any performance gain.
1398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399endmenu
1400
1401menu "Boot options"
1402
1403# Compressed boot loader in ROM. Yes, we really want to ask about
1404# TEXT and BSS so we preserve their values in the config files.
1405config ZBOOT_ROM_TEXT
1406 hex "Compressed ROM boot loader base address"
1407 default "0"
1408 help
1409 The physical address at which the ROM-able zImage is to be
1410 placed in the target. Platforms which normally make use of
1411 ROM-able zImage formats normally set this to a suitable
1412 value in their defconfig file.
1413
1414 If ZBOOT_ROM is not enabled, this has no effect.
1415
1416config ZBOOT_ROM_BSS
1417 hex "Compressed ROM boot loader BSS address"
1418 default "0"
1419 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001420 The base address of an area of read/write memory in the target
1421 for the ROM-able zImage which must be available while the
1422 decompressor is running. It must be large enough to hold the
1423 entire decompressed kernel plus an additional 128 KiB.
1424 Platforms which normally make use of ROM-able zImage formats
1425 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426
1427 If ZBOOT_ROM is not enabled, this has no effect.
1428
1429config ZBOOT_ROM
1430 bool "Compressed boot loader in ROM/flash"
1431 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1432 help
1433 Say Y here if you intend to execute your compressed kernel image
1434 (zImage) directly from ROM or flash. If unsure, say N.
1435
1436config CMDLINE
1437 string "Default kernel command string"
1438 default ""
1439 help
1440 On some architectures (EBSA110 and CATS), there is currently no way
1441 for the boot loader to pass arguments to the kernel. For these
1442 architectures, you should supply some command-line options at build
1443 time by entering them here. As a minimum, you should specify the
1444 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1445
1446config XIP_KERNEL
1447 bool "Kernel Execute-In-Place from ROM"
1448 depends on !ZBOOT_ROM
1449 help
1450 Execute-In-Place allows the kernel to run from non-volatile storage
1451 directly addressable by the CPU, such as NOR flash. This saves RAM
1452 space since the text section of the kernel is not loaded from flash
1453 to RAM. Read-write sections, such as the data section and stack,
1454 are still copied to RAM. The XIP kernel is not compressed since
1455 it has to run directly from flash, so it will take more space to
1456 store it. The flash address used to link the kernel object files,
1457 and for storing it, is configuration dependent. Therefore, if you
1458 say Y here, you must know the proper physical address where to
1459 store the kernel image depending on your own flash memory usage.
1460
1461 Also note that the make target becomes "make xipImage" rather than
1462 "make zImage" or "make Image". The final kernel binary to put in
1463 ROM memory will be arch/arm/boot/xipImage.
1464
1465 If unsure, say N.
1466
1467config XIP_PHYS_ADDR
1468 hex "XIP Kernel Physical Location"
1469 depends on XIP_KERNEL
1470 default "0x00080000"
1471 help
1472 This is the physical address in your flash memory the kernel will
1473 be linked for and stored to. This address is dependent on your
1474 own flash usage.
1475
Richard Purdiec587e4a2007-02-06 21:29:00 +01001476config KEXEC
1477 bool "Kexec system call (EXPERIMENTAL)"
1478 depends on EXPERIMENTAL
1479 help
1480 kexec is a system call that implements the ability to shutdown your
1481 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001482 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001483 you can start any kernel with it, not just Linux.
1484
1485 It is an ongoing process to be certain the hardware in a machine
1486 is properly shutdown, so do not be surprised if this code does not
1487 initially work for you. It may help to enable device hotplugging
1488 support.
1489
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001490config ATAGS_PROC
1491 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001492 depends on KEXEC
1493 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001494 help
1495 Should the atags used to boot the kernel be exported in an "atags"
1496 file in procfs. Useful with kexec.
1497
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498endmenu
1499
Russell Kingac9d7ef2008-08-18 17:26:00 +01001500menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501
Ben Dooks89c52ed2009-07-30 23:23:24 +01001502if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503
1504source "drivers/cpufreq/Kconfig"
1505
1506config CPU_FREQ_SA1100
1507 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508
1509config CPU_FREQ_SA1110
1510 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511
1512config CPU_FREQ_INTEGRATOR
1513 tristate "CPUfreq driver for ARM Integrator CPUs"
1514 depends on ARCH_INTEGRATOR && CPU_FREQ
1515 default y
1516 help
1517 This enables the CPUfreq driver for ARM Integrator CPUs.
1518
1519 For details, take a look at <file:Documentation/cpu-freq>.
1520
1521 If in doubt, say Y.
1522
Russell King9e2697f2007-12-14 13:30:14 +00001523config CPU_FREQ_PXA
1524 bool
1525 depends on CPU_FREQ && ARCH_PXA && PXA25x
1526 default y
1527 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1528
Mark Brownb3748dd2009-06-15 11:23:20 +01001529config CPU_FREQ_S3C64XX
1530 bool "CPUfreq support for Samsung S3C64XX CPUs"
1531 depends on CPU_FREQ && CPU_S3C6410
1532
Ben Dooks9d56c022009-07-30 23:23:25 +01001533config CPU_FREQ_S3C
1534 bool
1535 help
1536 Internal configuration node for common cpufreq on Samsung SoC
1537
1538config CPU_FREQ_S3C24XX
1539 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1540 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1541 select CPU_FREQ_S3C
1542 help
1543 This enables the CPUfreq driver for the Samsung S3C24XX family
1544 of CPUs.
1545
1546 For details, take a look at <file:Documentation/cpu-freq>.
1547
1548 If in doubt, say N.
1549
1550config CPU_FREQ_S3C24XX_PLL
1551 bool "Support CPUfreq changing of PLL frequency"
1552 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1553 help
1554 Compile in support for changing the PLL frequency from the
1555 S3C24XX series CPUfreq driver. The PLL takes time to settle
1556 after a frequency change, so by default it is not enabled.
1557
1558 This also means that the PLL tables for the selected CPU(s) will
1559 be built which may increase the size of the kernel image.
1560
1561config CPU_FREQ_S3C24XX_DEBUG
1562 bool "Debug CPUfreq Samsung driver core"
1563 depends on CPU_FREQ_S3C24XX
1564 help
1565 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1566
1567config CPU_FREQ_S3C24XX_IODEBUG
1568 bool "Debug CPUfreq Samsung driver IO timing"
1569 depends on CPU_FREQ_S3C24XX
1570 help
1571 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1572
Ben Dookse6d197a2009-07-30 23:23:42 +01001573config CPU_FREQ_S3C24XX_DEBUGFS
1574 bool "Export debugfs for CPUFreq"
1575 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1576 help
1577 Export status information via debugfs.
1578
Linus Torvalds1da177e2005-04-16 15:20:36 -07001579endif
1580
Russell Kingac9d7ef2008-08-18 17:26:00 +01001581source "drivers/cpuidle/Kconfig"
1582
1583endmenu
1584
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585menu "Floating point emulation"
1586
1587comment "At least one emulation must be selected"
1588
1589config FPE_NWFPE
1590 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001591 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592 ---help---
1593 Say Y to include the NWFPE floating point emulator in the kernel.
1594 This is necessary to run most binaries. Linux does not currently
1595 support floating point hardware so you need to say Y here even if
1596 your machine has an FPA or floating point co-processor podule.
1597
1598 You may say N here if you are going to load the Acorn FPEmulator
1599 early in the bootup.
1600
1601config FPE_NWFPE_XP
1602 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001603 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001604 help
1605 Say Y to include 80-bit support in the kernel floating-point
1606 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1607 Note that gcc does not generate 80-bit operations by default,
1608 so in most cases this option only enlarges the size of the
1609 floating point emulator without any good reason.
1610
1611 You almost surely want to say N here.
1612
1613config FPE_FASTFPE
1614 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001615 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616 ---help---
1617 Say Y here to include the FAST floating point emulator in the kernel.
1618 This is an experimental much faster emulator which now also has full
1619 precision for the mantissa. It does not support any exceptions.
1620 It is very simple, and approximately 3-6 times faster than NWFPE.
1621
1622 It should be sufficient for most programs. It may be not suitable
1623 for scientific calculations, but you have to check this for yourself.
1624 If you do not feel you need a faster FP emulation you should better
1625 choose NWFPE.
1626
1627config VFP
1628 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001629 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630 help
1631 Say Y to include VFP support code in the kernel. This is needed
1632 if your hardware includes a VFP unit.
1633
1634 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1635 release notes and additional status information.
1636
1637 Say N if your target does not have VFP hardware.
1638
Catalin Marinas25ebee02007-09-25 15:22:24 +01001639config VFPv3
1640 bool
1641 depends on VFP
1642 default y if CPU_V7
1643
Catalin Marinasb5872db2008-01-10 19:16:17 +01001644config NEON
1645 bool "Advanced SIMD (NEON) Extension support"
1646 depends on VFPv3 && CPU_V7
1647 help
1648 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1649 Extension.
1650
Linus Torvalds1da177e2005-04-16 15:20:36 -07001651endmenu
1652
1653menu "Userspace binary formats"
1654
1655source "fs/Kconfig.binfmt"
1656
1657config ARTHUR
1658 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001659 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660 help
1661 Say Y here to include the kernel code necessary if you want to run
1662 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1663 experimental; if this sounds frightening, say N and sleep in peace.
1664 You can also say M here to compile this support as a module (which
1665 will be called arthur).
1666
1667endmenu
1668
1669menu "Power management options"
1670
Russell Kingeceab4a2005-11-15 11:31:41 +00001671source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672
Johannes Bergf4cb5702007-12-08 02:14:00 +01001673config ARCH_SUSPEND_POSSIBLE
1674 def_bool y
1675
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676endmenu
1677
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001678source "net/Kconfig"
1679
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001680source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001681
1682source "fs/Kconfig"
1683
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684source "arch/arm/Kconfig.debug"
1685
1686source "security/Kconfig"
1687
1688source "crypto/Kconfig"
1689
1690source "lib/Kconfig"