blob: 553487052772cdcdffcb7598c8b72ce314422152 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Alessandro Zummo12b824f2006-03-27 01:16:35 -080013 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000014 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010015 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Mathieu Desnoyers42d4b832008-02-02 15:10:34 -050016 select HAVE_OPROFILE
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050018 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080019 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040020 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 help
27 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000028 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000030 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 Europe. There is an ARM Linux project with a web page at
32 <http://www.arm.linux.org.uk/>.
33
Russell King1a189b92008-04-13 21:41:55 +010034config HAVE_PWM
35 bool
36
Ralf Baechle75e71532007-02-09 17:08:58 +000037config SYS_SUPPORTS_APM_EMULATION
38 bool
39
David Brownell0a938b92007-03-05 00:30:18 -080040config GENERIC_GPIO
41 bool
David Brownell0a938b92007-03-05 00:30:18 -080042
Kevin Hilman746140c2006-09-22 00:16:30 +010043config GENERIC_TIME
44 bool
Kevin Hilman746140c2006-09-22 00:16:30 +010045
Kevin Hilman0567a0c2007-03-13 20:29:24 +010046config GENERIC_CLOCKEVENTS
47 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010048
Catalin Marinasa8655e82008-02-04 17:30:57 +010049config GENERIC_CLOCKEVENTS_BROADCAST
50 bool
51 depends on GENERIC_CLOCKEVENTS
52 default y if SMP && !LOCAL_TIMERS
53
Linus Walleijbc581772009-09-15 17:30:37 +010054config HAVE_TCM
55 bool
56 select GENERIC_ALLOCATOR
57
Russell Kinge119bff2010-01-10 17:23:29 +000058config HAVE_PROC_CPU
59 bool
60
Al Viro5ea81762007-02-11 15:41:31 +000061config NO_IOPORT
62 bool
Al Viro5ea81762007-02-11 15:41:31 +000063
Linus Torvalds1da177e2005-04-16 15:20:36 -070064config EISA
65 bool
66 ---help---
67 The Extended Industry Standard Architecture (EISA) bus was
68 developed as an open alternative to the IBM MicroChannel bus.
69
70 The EISA bus provided some of the features of the IBM MicroChannel
71 bus while maintaining backward compatibility with cards made for
72 the older ISA bus. The EISA bus saw limited use between 1988 and
73 1995 when it was made obsolete by the PCI bus.
74
75 Say Y here if you are building a kernel for an EISA-based machine.
76
77 Otherwise, say N.
78
79config SBUS
80 bool
81
82config MCA
83 bool
84 help
85 MicroChannel Architecture is found in some IBM PS/2 machines and
86 laptops. It is a bus system similar to PCI or ISA. See
87 <file:Documentation/mca.txt> (and especially the web page given
88 there) before attempting to build an MCA bus kernel.
89
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010090config GENERIC_HARDIRQS
91 bool
92 default y
93
Russell Kingf16fb1e2007-04-28 09:59:37 +010094config STACKTRACE_SUPPORT
95 bool
96 default y
97
Nicolas Pitref76e9152008-04-24 01:31:46 -040098config HAVE_LATENCYTOP_SUPPORT
99 bool
100 depends on !SMP
101 default y
102
Russell Kingf16fb1e2007-04-28 09:59:37 +0100103config LOCKDEP_SUPPORT
104 bool
105 default y
106
Russell King7ad1bcb2006-08-27 12:07:02 +0100107config TRACE_IRQFLAGS_SUPPORT
108 bool
109 default y
110
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100111config HARDIRQS_SW_RESEND
112 bool
113 default y
114
115config GENERIC_IRQ_PROBE
116 bool
117 default y
118
Nick Piggin95c354f2008-01-30 13:31:20 +0100119config GENERIC_LOCKBREAK
120 bool
121 default y
122 depends on SMP && PREEMPT
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124config RWSEM_GENERIC_SPINLOCK
125 bool
126 default y
127
128config RWSEM_XCHGADD_ALGORITHM
129 bool
130
David Howellsf0d1b0b2006-12-08 02:37:49 -0800131config ARCH_HAS_ILOG2_U32
132 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800133
134config ARCH_HAS_ILOG2_U64
135 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136
Ben Dooks89c52ed2009-07-30 23:23:24 +0100137config ARCH_HAS_CPUFREQ
138 bool
139 help
140 Internal node to signify that the ARCH has CPUFREQ support
141 and that the relevant menu configurations are displayed for
142 it.
143
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800144config GENERIC_HWEIGHT
145 bool
146 default y
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148config GENERIC_CALIBRATE_DELAY
149 bool
150 default y
151
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100152config ARCH_MAY_HAVE_PC_FDC
153 bool
154
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800155config ZONE_DMA
156 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800157
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800158config NEED_DMA_MAP_STATE
159 def_bool y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config GENERIC_ISA_DMA
162 bool
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config FIQ
165 bool
166
Al Viro034d2f52005-12-19 16:27:59 -0500167config ARCH_MTD_XIP
168 bool
169
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100170config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100171 def_bool y
172
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100173config ARM_L1_CACHE_SHIFT_6
174 bool
175 help
176 Setting ARM L1 cache line size to 64 Bytes.
177
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500178if OPROFILE
179
180config OPROFILE_ARMV6
181 def_bool y
182 depends on CPU_V6 && !SMP
183 select OPROFILE_ARM11_CORE
184
185config OPROFILE_MPCORE
186 def_bool y
187 depends on CPU_V6 && SMP
188 select OPROFILE_ARM11_CORE
189
190config OPROFILE_ARM11_CORE
191 bool
192
Jean PIHETd7ac4e22008-08-12 19:07:39 +0100193config OPROFILE_ARMV7
194 def_bool y
195 depends on CPU_V7 && !SMP
196 bool
197
Mathieu Desnoyersc0ffa3a2008-02-02 15:10:32 -0500198endif
199
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200config VECTORS_BASE
201 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900202 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100203 default DRAM_BASE if REMAP_VECTORS_TO_RAM
204 default 0x00000000
205 help
206 The base address of exception vectors.
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208source "init/Kconfig"
209
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700210source "kernel/Kconfig.freezer"
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212menu "System Type"
213
Hyok S. Choi3c427972009-07-24 12:35:00 +0100214config MMU
215 bool "MMU-based Paged Memory Management Support"
216 default y
217 help
218 Select if you want MMU-based virtualised addressing space
219 support by paged memory management. If unsure, say 'Y'.
220
Russell Kingccf50e22010-03-15 19:03:06 +0000221#
222# The "ARM system type" choice list is ordered alphabetically by option
223# text. Please add new entries in the option alphabetic order.
224#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225choice
226 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000227 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100229config ARCH_AAEC2000
230 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000231 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700233 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100234 help
235 This enables support for systems based on the Agilent AAEC-2000
236
237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700241 select HAVE_CLK
Russell Kingd72fbdf2008-11-08 20:08:08 +0000242 select COMMON_CLKDEV
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
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100279config ARCH_AT91
280 bool "Atmel AT91"
David Brownell0a938b92007-03-05 00:30:18 -0800281 select GENERIC_GPIO
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100282 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700283 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100285 This enables support for systems based on the Atmel AT91RM9200,
286 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100287
Russell Kingccf50e22010-03-15 19:03:06 +0000288config ARCH_BCMRING
289 bool "Broadcom BCMRING"
290 depends on MMU
291 select CPU_V6
292 select ARM_AMBA
293 select COMMON_CLKDEV
294 select GENERIC_TIME
295 select GENERIC_CLOCKEVENTS
296 select ARCH_WANT_OPTIONAL_GPIOLIB
297 help
298 Support for Broadcom's BCMRing platform.
299
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000302 select CPU_ARM720T
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000303 help
304 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305
Russell King788c9702009-04-26 14:21:59 +0100306config ARCH_GEMINI
307 bool "Cortina Systems Gemini"
308 select CPU_FA526
309 select GENERIC_GPIO
310 select ARCH_REQUIRE_GPIOLIB
311 help
312 Support for the Cortina Systems Gemini family SoCs
313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314config ARCH_EBSA110
315 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000316 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100317 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000318 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 help
320 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000321 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 Ethernet interface, two PCMCIA sockets, two serial ports and a
323 parallel port.
324
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000325config ARCH_EP93XX
326 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328 select ARM_AMBA
329 select ARM_VIC
Herbert Valerio Riedel4e9f9fd2007-11-26 18:41:02 +0100330 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700331 select HAVE_CLK
Russell Kingae696fd2008-11-30 17:11:49 +0000332 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700333 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100334 select ARCH_HAS_HOLES_MEMORYMODEL
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000335 help
336 This enables support for the Cirrus EP93xx series of CPUs.
337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338config ARCH_FOOTBRIDGE
339 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000340 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 select FOOTBRIDGE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000342 help
343 Support for systems based on the DC21285 companion chip
344 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Russell King788c9702009-04-26 14:21:59 +0100346config ARCH_MXC
347 bool "Freescale MXC/iMX-based"
348 select GENERIC_TIME
349 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100350 select ARCH_REQUIRE_GPIOLIB
Russell Kinga2ab67f2009-05-23 20:57:31 +0100351 select HAVE_CLK
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100352 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100353 help
354 Support for Freescale MXC/iMX-based family of processors
355
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100356config ARCH_STMP3XXX
357 bool "Freescale STMP3xxx"
358 select CPU_ARM926T
359 select HAVE_CLK
360 select COMMON_CLKDEV
361 select ARCH_REQUIRE_GPIOLIB
362 select GENERIC_TIME
363 select GENERIC_CLOCKEVENTS
364 select GENERIC_GPIO
365 select USB_ARCH_HAS_EHCI
366 help
367 Support for systems based on the Freescale 3xxx CPUs.
368
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369config ARCH_NETX
370 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000371 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100373 select GENERIC_CLOCKEVENTS
Uwe Kleine-König21edecd2008-12-09 21:57:23 +0100374 select GENERIC_TIME
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000375 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100376 This enables support for systems based on the Hilscher NetX Soc
377
378config ARCH_H720X
379 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000380 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100381 select ISA_DMA_API
382 help
383 This enables support for systems based on the Hynix HMS720x
384
Russell King3b938be2007-05-12 11:25:44 +0100385config ARCH_IOP13XX
386 bool "IOP13xx-based"
387 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000388 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100389 select PLAT_IOP
390 select PCI
391 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100392 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100393 help
394 Support for Intel's IOP13XX (XScale) family of processors.
395
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100396config ARCH_IOP32X
397 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100398 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100400 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100401 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100402 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100403 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000404 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100405 Support for Intel's 80219 and IOP32X (XScale) family of
406 processors.
407
408config ARCH_IOP33X
409 bool "IOP33x-based"
410 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000411 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100412 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100413 select PCI
Arnaud Patard63f385c2008-07-08 23:07:48 +0100414 select GENERIC_GPIO
Russell Kingbb2b1802008-07-26 15:36:03 +0100415 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100416 help
417 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418
Russell King3b938be2007-05-12 11:25:44 +0100419config ARCH_IXP23XX
420 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100421 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000422 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100423 select PCI
Dan Williams285f5fa2006-12-07 02:59:39 +0100424 help
Russell King3b938be2007-05-12 11:25:44 +0100425 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
427config ARCH_IXP2000
428 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100429 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000430 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100431 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000432 help
433 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
Russell King3b938be2007-05-12 11:25:44 +0100435config ARCH_IXP4XX
436 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100437 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100439 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100440 select GENERIC_TIME
441 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100442 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100443 help
Russell King3b938be2007-05-12 11:25:44 +0100444 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100445
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446config ARCH_L7200
447 bool "LinkUp-L7200"
Russell Kingc7508152008-10-26 10:55:14 +0000448 select CPU_ARM720T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 select FIQ
450 help
451 Say Y here if you intend to run this kernel on a LinkUp Systems
452 L7200 Software Development Board which uses an ARM720T processor.
453 Information on this board can be obtained at:
454
455 <http://www.linkupsys.com/>
456
457 If you have any questions or comments about the Linux kernel port
458 to this board, send e-mail to <sjhill@cotw.com>.
459
Saeed Bisharaedabd382009-08-06 15:12:43 +0300460config ARCH_DOVE
461 bool "Marvell Dove"
462 select PCI
463 select GENERIC_GPIO
464 select ARCH_REQUIRE_GPIOLIB
465 select GENERIC_TIME
466 select GENERIC_CLOCKEVENTS
467 select PLAT_ORION
468 help
469 Support for the Marvell Dove SoC 88AP510
470
Saeed Bishara651c74c2008-06-22 22:45:06 +0200471config ARCH_KIRKWOOD
472 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000473 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200474 select PCI
Lennert Buytenhek4c213432008-10-20 01:51:04 +0200475 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700476 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200477 select GENERIC_TIME
478 select GENERIC_CLOCKEVENTS
479 select PLAT_ORION
480 help
481 Support for the following Marvell Kirkwood series SoCs:
482 88F6180, 88F6192 and 88F6281.
483
Russell King788c9702009-04-26 14:21:59 +0100484config ARCH_LOKI
485 bool "Marvell Loki (88RC8480)"
486 select CPU_FEROCEON
487 select GENERIC_TIME
488 select GENERIC_CLOCKEVENTS
489 select PLAT_ORION
490 help
491 Support for the Marvell Loki (88RC8480) SoC.
492
493config ARCH_MV78XX0
494 bool "Marvell MV78xx0"
495 select CPU_FEROCEON
496 select PCI
497 select GENERIC_GPIO
Erik Benadaa8865652009-05-28 17:08:55 -0700498 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100499 select GENERIC_TIME
500 select GENERIC_CLOCKEVENTS
501 select PLAT_ORION
502 help
503 Support for the following Marvell MV78xx0 series SoCs:
504 MV781x0, MV782x0.
505
506config ARCH_ORION5X
507 bool "Marvell Orion"
508 depends on MMU
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 Orion 5x series SoCs:
518 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
519 Orion-2 (5281), Orion-1-90 (6183).
520
521config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500522 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100523 depends on MMU
524 select GENERIC_GPIO
525 select ARCH_REQUIRE_GPIOLIB
526 select HAVE_CLK
527 select COMMON_CLKDEV
528 select GENERIC_TIME
529 select GENERIC_CLOCKEVENTS
530 select TICK_ONESHOT
531 select PLAT_PXA
532 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500533 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100534
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100535config ARCH_KS8695
536 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000537 select CPU_ARM922T
Andrew Victor8a87a992007-05-14 14:30:15 +0100538 select GENERIC_GPIO
Daniel Silverstone72880ad2008-12-13 20:44:12 +0000539 select ARCH_REQUIRE_GPIOLIB
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100540 help
541 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
542 System-on-Chip devices.
543
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100544config ARCH_NS9XXX
545 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000546 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100547 select GENERIC_GPIO
Uwe Kleine-Königcef59752007-09-30 20:35:48 +0100548 select GENERIC_TIME
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100549 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700550 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100551 help
552 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
553 System.
554
555 <http://www.digi.com/products/microprocessors/index.jsp>
556
Russell King788c9702009-04-26 14:21:59 +0100557config ARCH_W90X900
558 bool "Nuvoton W90X900 CPU"
559 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100560 select ARCH_REQUIRE_GPIOLIB
561 select GENERIC_GPIO
wanzongshund2c24192009-07-14 15:09:54 +0100562 select HAVE_CLK
wanzongshun0e4a34b2009-06-10 15:50:44 +0100563 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100564 select GENERIC_TIME
565 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200566 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100567 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
568 At present, the w90x900 has been renamed nuc900, regarding
569 the ARM series product line, you can login the following
570 link address to know more.
571
572 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
573 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400574
wanzongshuna62e9032009-12-31 15:06:05 +0100575config ARCH_NUC93X
576 bool "Nuvoton NUC93X CPU"
577 select CPU_ARM926T
578 select HAVE_CLK
579 select COMMON_CLKDEV
580 help
581 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
582 low-power and high performance MPEG-4/JPEG multimedia controller chip.
583
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100584config ARCH_PNX4008
585 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000586 select CPU_ARM926T
David Brownell9483a572008-07-23 21:26:48 -0700587 select HAVE_CLK
Russell King6985a5a2009-11-20 10:32:41 +0000588 select COMMON_CLKDEV
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100589 help
590 This enables support for Philips PNX4008 mobile platform.
591
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700593 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100594 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500595 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100596 select ARCH_HAS_CPUFREQ
David Brownell0a938b92007-03-05 00:30:18 -0800597 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700598 select HAVE_CLK
Russell King8c3abc72008-11-08 20:25:21 +0000599 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700600 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre45cf5ee2007-02-05 22:37:07 +0100601 select GENERIC_TIME
Eric Miao981d0f32007-07-24 01:22:43 +0100602 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000603 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800604 select PLAT_PXA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000605 help
eric miao2c8086a2007-09-11 19:13:17 -0700606 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
Russell King788c9702009-04-26 14:21:59 +0100608config ARCH_MSM
609 bool "Qualcomm MSM"
610 select CPU_V6
Eric Miao49cbe782009-01-20 14:15:18 +0800611 select GENERIC_TIME
612 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800613 help
Russell King788c9702009-04-26 14:21:59 +0100614 Support for Qualcomm MSM7K based systems. This runs on the ARM11
615 apps processor of the MSM7K and depends on a shared memory
616 interface to the ARM9 modem processor which runs the baseband stack
617 and controls some vital subsystems (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800618
Magnus Dammc793c1b2010-02-05 11:14:49 +0000619config ARCH_SHMOBILE
620 bool "Renesas SH-Mobile"
621 help
622 Support for Renesas's SH-Mobile ARM platforms
623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624config ARCH_RPC
625 bool "RiscPC"
626 select ARCH_ACORN
627 select FIQ
628 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100629 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100630 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000631 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000632 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100633 select ARCH_SPARSEMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 help
635 On the Acorn Risc-PC, Linux can support the internal IDE disk and
636 CD-ROM interface, serial and parallel port, and the floppy drive.
637
638config ARCH_SA1100
639 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000640 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100641 select ISA
Russell King05944d72006-11-30 20:43:51 +0000642 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500643 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100644 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000645 select CPU_FREQ
David Brownell0a938b92007-03-05 00:30:18 -0800646 select GENERIC_GPIO
Russell Kingd142b6e2007-11-12 21:55:12 +0000647 select GENERIC_TIME
Russell King3e238be2008-04-14 23:03:10 +0100648 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700649 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100650 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700651 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000652 help
653 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654
655config ARCH_S3C2410
Ben Dookse4d06e32007-02-16 12:12:31 +0100656 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
David Brownell0a938b92007-03-05 00:30:18 -0800657 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100658 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700659 select HAVE_CLK
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660 help
661 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
662 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000663 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664
Ben Dooksa08ab632008-10-21 14:06:39 +0100665config ARCH_S3C64XX
666 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000667 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900668 select CPU_V6
Ben Dooksa08ab632008-10-21 14:06:39 +0100669 select GENERIC_GPIO
Ben Dooks89f0ce72010-01-26 15:49:15 +0900670 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100671 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900672 select NO_IOPORT
Ben Dooks89c52ed2009-07-30 23:23:24 +0100673 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900674 select ARCH_REQUIRE_GPIOLIB
675 select SAMSUNG_CLKSRC
676 select SAMSUNG_IRQ_VIC_TIMER
677 select SAMSUNG_IRQ_UART
678 select S3C_GPIO_TRACK
679 select S3C_GPIO_PULL_UPDOWN
680 select S3C_GPIO_CFG_S3C24XX
681 select S3C_GPIO_CFG_S3C64XX
682 select S3C_DEV_NAND
683 select USB_ARCH_HAS_OHCI
684 select SAMSUNG_GPIOLIB_4BIT
Ben Dooksa08ab632008-10-21 14:06:39 +0100685 help
686 Samsung S3C64XX series based systems
687
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900688config ARCH_S5P6440
689 bool "Samsung S5P6440"
690 select CPU_V6
691 select GENERIC_GPIO
692 select HAVE_CLK
693 help
694 Samsung S5P6440 CPU based systems
695
Kukjin Kim550db7f2010-01-29 10:19:26 +0900696config ARCH_S5P6442
697 bool "Samsung S5P6442"
698 select CPU_V6
699 select GENERIC_GPIO
700 select HAVE_CLK
701 help
702 Samsung S5P6442 CPU based systems
703
Byungho Min5a7652f2009-06-23 21:39:42 +0900704config ARCH_S5PC1XX
705 bool "Samsung S5PC1XX"
706 select GENERIC_GPIO
707 select HAVE_CLK
708 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100709 select ARM_L1_CACHE_SHIFT_6
Byungho Min5a7652f2009-06-23 21:39:42 +0900710 help
711 Samsung S5PC1XX series based systems
712
Kukjin Kim170f4e42010-02-24 16:40:44 +0900713config ARCH_S5PV210
714 bool "Samsung S5PV210/S5PC110"
715 select CPU_V7
716 select GENERIC_GPIO
717 select HAVE_CLK
718 select ARM_L1_CACHE_SHIFT_6
719 help
720 Samsung S5PV210/S5PC110 series based systems
721
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722config ARCH_SHARK
723 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000724 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100725 select ISA
726 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100727 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100728 select PCI
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000729 help
730 Support for the StrongARM based Digital DNARD machine, also known
731 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732
733config ARCH_LH7A40X
734 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000735 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100736 select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
737 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 help
739 Say Y here for systems based on one of the Sharp LH7A40X
740 System on a Chip processors. These CPUs include an ARM922T
741 core with a wide array of integrated devices for
742 hand-held and low-power applications.
743
Linus Walleijd98aac72009-04-27 10:21:46 +0100744config ARCH_U300
745 bool "ST-Ericsson U300 Series"
746 depends on MMU
747 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100748 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100749 select ARM_AMBA
750 select ARM_VIC
751 select GENERIC_TIME
752 select GENERIC_CLOCKEVENTS
753 select HAVE_CLK
754 select COMMON_CLKDEV
755 select GENERIC_GPIO
756 help
757 Support for ST-Ericsson U300 series mobile platforms.
758
Russell Kingccf50e22010-03-15 19:03:06 +0000759config ARCH_U8500
760 bool "ST-Ericsson U8500 Series"
761 select CPU_V7
762 select ARM_AMBA
763 select GENERIC_TIME
764 select GENERIC_CLOCKEVENTS
765 select COMMON_CLKDEV
766 help
767 Support for ST-Ericsson's Ux500 architecture
768
769config ARCH_NOMADIK
770 bool "STMicroelectronics Nomadik"
771 select ARM_AMBA
772 select ARM_VIC
773 select CPU_ARM926T
774 select HAVE_CLK
775 select COMMON_CLKDEV
776 select GENERIC_TIME
777 select GENERIC_CLOCKEVENTS
778 select GENERIC_GPIO
779 select ARCH_REQUIRE_GPIOLIB
780 help
781 Support for the Nomadik platform by ST-Ericsson
782
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100783config ARCH_DAVINCI
784 bool "TI DaVinci"
Russell Kingc7508152008-10-26 10:55:14 +0000785 select CPU_ARM926T
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100786 select GENERIC_TIME
787 select GENERIC_CLOCKEVENTS
Vladimir Barinov3d9edf02007-07-10 13:03:43 +0100788 select GENERIC_GPIO
David Brownelldce11152008-09-07 23:41:04 -0700789 select ARCH_REQUIRE_GPIOLIB
David Brownell9483a572008-07-23 21:26:48 -0700790 select HAVE_CLK
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100791 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700792 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700793 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700794 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530795 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100796 help
797 Support for TI's DaVinci platform.
798
Russell King3b938be2007-05-12 11:25:44 +0100799config ARCH_OMAP
800 bool "TI OMAP"
801 select GENERIC_GPIO
David Brownell9483a572008-07-23 21:26:48 -0700802 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700803 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100804 select ARCH_HAS_CPUFREQ
Russell King3b938be2007-05-12 11:25:44 +0100805 select GENERIC_TIME
Kevin Hilman06cad092007-10-18 23:04:43 -0700806 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800807 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100808 help
809 Support for TI's OMAP platform (OMAP1 and OMAP2).
810
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811endchoice
812
Russell Kingccf50e22010-03-15 19:03:06 +0000813#
814# This is sorted alphabetically by mach-* pathname. However, plat-*
815# Kconfigs may be included either alphabetically (according to the
816# plat- suffix) or along side the corresponding mach-* source.
817#
Russell King95b8f202010-01-14 11:43:54 +0000818source "arch/arm/mach-aaec2000/Kconfig"
819
820source "arch/arm/mach-at91/Kconfig"
821
822source "arch/arm/mach-bcmring/Kconfig"
823
Linus Torvalds1da177e2005-04-16 15:20:36 -0700824source "arch/arm/mach-clps711x/Kconfig"
825
Russell King95b8f202010-01-14 11:43:54 +0000826source "arch/arm/mach-davinci/Kconfig"
827
828source "arch/arm/mach-dove/Kconfig"
829
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000830source "arch/arm/mach-ep93xx/Kconfig"
831
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832source "arch/arm/mach-footbridge/Kconfig"
833
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200834source "arch/arm/mach-gemini/Kconfig"
835
Russell King95b8f202010-01-14 11:43:54 +0000836source "arch/arm/mach-h720x/Kconfig"
837
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838source "arch/arm/mach-integrator/Kconfig"
839
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100840source "arch/arm/mach-iop32x/Kconfig"
841
842source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843
Dan Williams285f5fa2006-12-07 02:59:39 +0100844source "arch/arm/mach-iop13xx/Kconfig"
845
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846source "arch/arm/mach-ixp4xx/Kconfig"
847
848source "arch/arm/mach-ixp2000/Kconfig"
849
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100850source "arch/arm/mach-ixp23xx/Kconfig"
851
Russell King95b8f202010-01-14 11:43:54 +0000852source "arch/arm/mach-kirkwood/Kconfig"
853
854source "arch/arm/mach-ks8695/Kconfig"
855
856source "arch/arm/mach-lh7a40x/Kconfig"
857
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200858source "arch/arm/mach-loki/Kconfig"
859
Russell King95b8f202010-01-14 11:43:54 +0000860source "arch/arm/mach-msm/Kconfig"
861
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200862source "arch/arm/mach-mv78xx0/Kconfig"
863
Russell King95b8f202010-01-14 11:43:54 +0000864source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865
Russell King95b8f202010-01-14 11:43:54 +0000866source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800867
Russell King95b8f202010-01-14 11:43:54 +0000868source "arch/arm/mach-nomadik/Kconfig"
869source "arch/arm/plat-nomadik/Kconfig"
870
871source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872
Russell Kingd91a89102010-02-04 18:13:17 +0000873source "arch/arm/mach-nuc93x/Kconfig"
874
Tony Lindgrend48af152005-07-10 19:58:17 +0100875source "arch/arm/plat-omap/Kconfig"
876
877source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878
Tony Lindgren1dbae812005-11-10 14:26:51 +0000879source "arch/arm/mach-omap2/Kconfig"
880
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400881source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400882
Russell King95b8f202010-01-14 11:43:54 +0000883source "arch/arm/mach-pxa/Kconfig"
884source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Russell King95b8f202010-01-14 11:43:54 +0000886source "arch/arm/mach-mmp/Kconfig"
887
888source "arch/arm/mach-realview/Kconfig"
889
890source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300891
Ben Dookscf383672009-11-10 00:14:58 +0000892source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100893source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900894source "arch/arm/plat-s5p/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900895source "arch/arm/plat-s5pc1xx/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100896
897if ARCH_S3C2410
898source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100900source "arch/arm/mach-s3c2412/Kconfig"
901source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100902source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100903endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904
Ben Dooksa08ab632008-10-21 14:06:39 +0100905if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900906source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100907endif
908
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900909source "arch/arm/mach-s5p6440/Kconfig"
910
Kukjin Kim550db7f2010-01-29 10:19:26 +0900911source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100912
Byungho Min5a7652f2009-06-23 21:39:42 +0900913if ARCH_S5PC1XX
914source "arch/arm/mach-s5pc100/Kconfig"
915endif
916
Kukjin Kim170f4e42010-02-24 16:40:44 +0900917source "arch/arm/mach-s5pv210/Kconfig"
918
Russell King882d01f2010-03-02 23:40:15 +0000919source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920
Russell King882d01f2010-03-02 23:40:15 +0000921source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800922
Russell King95b8f202010-01-14 11:43:54 +0000923source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100924
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926
927source "arch/arm/mach-versatile/Kconfig"
928
wanzongshun7ec80dd2008-12-03 03:55:38 +0100929source "arch/arm/mach-w90x900/Kconfig"
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931# Definitions to make life easier
932config ARCH_ACORN
933 bool
934
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100935config PLAT_IOP
936 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700937 select GENERIC_CLOCKEVENTS
Mikael Pettersson980f2292009-10-29 11:46:55 -0700938 select GENERIC_TIME
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100939
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400940config PLAT_ORION
941 bool
942
Eric Miaobd5ce432009-01-20 12:06:01 +0800943config PLAT_PXA
944 bool
945
Russell Kingf4b8b312010-01-14 12:48:06 +0000946config PLAT_VERSATILE
947 bool
948
Russell Kinge3887712010-01-14 13:30:16 +0000949config ARM_TIMER_SP804
950 bool
951
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952source arch/arm/mm/Kconfig
953
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100954config IWMMXT
955 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +0800956 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
957 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +0100958 help
959 Enable support for iWMMXt context switching at run time if
960 running on a CPU that supports it.
961
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
963config XSCALE_PMU
964 bool
965 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
966 default y
967
Jamie Iles0f4f0672010-02-02 20:23:15 +0100968config CPU_HAS_PMU
969 depends on CPU_V6 || CPU_V7 || XSCALE_PMU
970 default y
971 bool
972
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +0100973if !MMU
974source "arch/arm/Kconfig-nommu"
975endif
976
Catalin Marinas9cba3cc2009-04-30 17:06:03 +0100977config ARM_ERRATA_411920
978 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
979 depends on CPU_V6 && !SMP
980 help
981 Invalidation of the Instruction Cache operation can
982 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
983 It does not affect the MPCore. This option enables the ARM Ltd.
984 recommended workaround.
985
Catalin Marinas7ce236f2009-04-30 17:06:09 +0100986config ARM_ERRATA_430973
987 bool "ARM errata: Stale prediction on replaced interworking branch"
988 depends on CPU_V7
989 help
990 This option enables the workaround for the 430973 Cortex-A8
991 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
992 interworking branch is replaced with another code sequence at the
993 same virtual address, whether due to self-modifying code or virtual
994 to physical address re-mapping, Cortex-A8 does not recover from the
995 stale interworking branch prediction. This results in Cortex-A8
996 executing the new code sequence in the incorrect ARM or Thumb state.
997 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
998 and also flushes the branch target cache at every context switch.
999 Note that setting specific bits in the ACTLR register may not be
1000 available in non-secure mode.
1001
Catalin Marinas855c5512009-04-30 17:06:15 +01001002config ARM_ERRATA_458693
1003 bool "ARM errata: Processor deadlock when a false hazard is created"
1004 depends on CPU_V7
1005 help
1006 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1007 erratum. For very specific sequences of memory operations, it is
1008 possible for a hazard condition intended for a cache line to instead
1009 be incorrectly associated with a different cache line. This false
1010 hazard might then cause a processor deadlock. The workaround enables
1011 the L1 caching of the NEON accesses and disables the PLD instruction
1012 in the ACTLR register. Note that setting specific bits in the ACTLR
1013 register may not be available in non-secure mode.
1014
Catalin Marinas0516e462009-04-30 17:06:20 +01001015config ARM_ERRATA_460075
1016 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1017 depends on CPU_V7
1018 help
1019 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1020 erratum. Any asynchronous access to the L2 cache may encounter a
1021 situation in which recent store transactions to the L2 cache are lost
1022 and overwritten with stale memory contents from external memory. The
1023 workaround disables the write-allocate mode for the L2 cache via the
1024 ACTLR register. Note that setting specific bits in the ACTLR register
1025 may not be available in non-secure mode.
1026
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001027config PL310_ERRATA_588369
1028 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1029 depends on CACHE_L2X0 && ARCH_OMAP4
1030 help
1031 The PL310 L2 cache controller implements three types of Clean &
1032 Invalidate maintenance operations: by Physical Address
1033 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1034 They are architecturally defined to behave as the execution of a
1035 clean operation followed immediately by an invalidate operation,
1036 both performing to the same memory location. This functionality
1037 is not correctly implemented in PL310 as clean lines are not
1038 invalidated as a result of these operations. Note that this errata
1039 uses Texas Instrument's secure monitor api.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040endmenu
1041
1042source "arch/arm/common/Kconfig"
1043
1044config FORCE_MAX_ZONEORDER
1045 int
1046 depends on SA1111
1047 default "9"
1048
1049menu "Bus support"
1050
1051config ARM_AMBA
1052 bool
1053
1054config ISA
1055 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056 help
1057 Find out whether you have ISA slots on your motherboard. ISA is the
1058 name of a bus system, i.e. the way the CPU talks to the other stuff
1059 inside your box. Other bus systems are PCI, EISA, MicroChannel
1060 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1061 newer boards don't support it. If you have ISA, say Y, otherwise N.
1062
Russell King065909b2006-01-04 15:44:16 +00001063# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064config ISA_DMA
1065 bool
Russell King065909b2006-01-04 15:44:16 +00001066 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067
Russell King065909b2006-01-04 15:44:16 +00001068# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001069config ISA_DMA_API
1070 bool
Al Viro5cae8412005-05-04 05:39:22 +01001071
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072config PCI
Mike Rapoporta0113a92007-11-25 08:55:34 +01001073 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 help
1075 Find out whether you have a PCI motherboard. PCI is the name of a
1076 bus system, i.e. the way the CPU talks to the other stuff inside
1077 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1078 VESA. If you have PCI, say Y, otherwise N.
1079
Matthew Wilcox36e23592007-07-10 10:54:40 -06001080config PCI_SYSCALL
1081 def_bool PCI
1082
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083# Select the host bridge type
1084config PCI_HOST_VIA82C505
1085 bool
1086 depends on PCI && ARCH_SHARK
1087 default y
1088
Mike Rapoporta0113a92007-11-25 08:55:34 +01001089config PCI_HOST_ITE8152
1090 bool
1091 depends on PCI && MACH_ARMCORE
1092 default y
1093 select DMABOUNCE
1094
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095source "drivers/pci/Kconfig"
1096
1097source "drivers/pcmcia/Kconfig"
1098
1099endmenu
1100
1101menu "Kernel Features"
1102
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001103source "kernel/time/Kconfig"
1104
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105config SMP
1106 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King42578c82009-06-11 15:35:00 +01001107 depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001108 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell Kingbc282482009-05-17 18:58:34 +01001109 depends on GENERIC_CLOCKEVENTS
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001110 select USE_GENERIC_SMP_HELPERS
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001111 select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112 help
1113 This enables support for systems with more than one CPU. If you have
1114 a system with only one CPU, like most personal computers, say N. If
1115 you have a system with more than one CPU, say Y.
1116
1117 If you say N here, the kernel will run on single and multiprocessor
1118 machines, but will use only one CPU of a multiprocessor machine. If
1119 you say Y here, the kernel will run on many, but not all, single
1120 processor machines. On a single processor machine, the kernel will
1121 run faster if you say N here.
1122
Adrian Bunk03502fa2008-02-03 15:50:21 +02001123 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1125 <http://www.linuxdoc.org/docs.html#howto>.
1126
1127 If you don't know what to do here, say N.
1128
Russell Kinga8cbcd92009-05-16 11:51:14 +01001129config HAVE_ARM_SCU
1130 bool
1131 depends on SMP
1132 help
1133 This option enables support for the ARM system coherency unit
1134
Russell Kingf32f4ce2009-05-16 12:14:21 +01001135config HAVE_ARM_TWD
1136 bool
1137 depends on SMP
1138 help
1139 This options enables support for the ARM timer and watchdog unit
1140
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001141choice
1142 prompt "Memory split"
1143 default VMSPLIT_3G
1144 help
1145 Select the desired split between kernel and user memory.
1146
1147 If you are not absolutely sure what you are doing, leave this
1148 option alone!
1149
1150 config VMSPLIT_3G
1151 bool "3G/1G user/kernel split"
1152 config VMSPLIT_2G
1153 bool "2G/2G user/kernel split"
1154 config VMSPLIT_1G
1155 bool "1G/3G user/kernel split"
1156endchoice
1157
1158config PAGE_OFFSET
1159 hex
1160 default 0x40000000 if VMSPLIT_1G
1161 default 0x80000000 if VMSPLIT_2G
1162 default 0xC0000000
1163
Linus Torvalds1da177e2005-04-16 15:20:36 -07001164config NR_CPUS
1165 int "Maximum number of CPUs (2-32)"
1166 range 2 32
1167 depends on SMP
1168 default "4"
1169
Russell Kinga054a812005-11-02 22:24:33 +00001170config HOTPLUG_CPU
1171 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1172 depends on SMP && HOTPLUG && EXPERIMENTAL
1173 help
1174 Say Y here to experiment with turning CPUs off and on. CPUs
1175 can be controlled through /sys/devices/system/cpu.
1176
Russell King37ee16a2005-11-08 19:08:05 +00001177config LOCAL_TIMERS
1178 bool "Use local timer interrupts"
Russell King42578c82009-06-11 15:35:00 +01001179 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001180 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001181 default y
Srinidhi Kasagar850265e2009-11-28 08:24:47 +01001182 select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
Russell King37ee16a2005-11-08 19:08:05 +00001183 help
1184 Enable support for local timers on SMP platforms, rather then the
1185 legacy IPI broadcast method. Local timers allows the system
1186 accounting to be spread across the timer interval, preventing a
1187 "thundering herd" at every timer tick.
1188
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001189source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190
Russell Kingf8065812006-03-02 22:41:59 +00001191config HZ
1192 int
1193 default 128 if ARCH_L7200
Kukjin Kim170f4e42010-02-24 16:40:44 +09001194 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
Russell Kingbfe65702006-03-04 11:01:53 +00001195 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001196 default AT91_TIMER_HZ if ARCH_AT91
Russell Kingf8065812006-03-02 22:41:59 +00001197 default 100
1198
Catalin Marinas16c79652009-07-24 12:33:02 +01001199config THUMB2_KERNEL
1200 bool "Compile the kernel in Thumb-2 mode"
1201 depends on CPU_V7 && EXPERIMENTAL
1202 select AEABI
1203 select ARM_ASM_UNIFIED
1204 help
1205 By enabling this option, the kernel will be compiled in
1206 Thumb-2 mode. A compiler/assembler that understand the unified
1207 ARM-Thumb syntax is needed.
1208
1209 If unsure, say N.
1210
Catalin Marinas0becb082009-07-24 12:32:53 +01001211config ARM_ASM_UNIFIED
1212 bool
1213
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001214config AEABI
1215 bool "Use the ARM EABI to compile the kernel"
1216 help
1217 This option allows for the kernel to be compiled using the latest
1218 ARM ABI (aka EABI). This is only useful if you are using a user
1219 space environment that is also compiled with EABI.
1220
1221 Since there are major incompatibilities between the legacy ABI and
1222 EABI, especially with regard to structure member alignment, this
1223 option also changes the kernel syscall calling convention to
1224 disambiguate both ABIs and allow for backward compatibility support
1225 (selected with CONFIG_OABI_COMPAT).
1226
1227 To use this you need GCC version 4.0.0 or later.
1228
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001229config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001230 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001231 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001232 default y
1233 help
1234 This option preserves the old syscall interface along with the
1235 new (ARM EABI) one. It also provides a compatibility layer to
1236 intercept syscalls that have structure arguments which layout
1237 in memory differs between the legacy ABI and the new ARM EABI
1238 (only for non "thumb" binaries). This option adds a tiny
1239 overhead to all syscalls and produces a slightly larger kernel.
1240 If you know you'll be using only pure EABI user space then you
1241 can say N here. If this option is not selected and you attempt
1242 to execute a legacy ABI binary then the result will be
1243 UNPREDICTABLE (in fact it can be predicted that it won't work
1244 at all). If in doubt say Y.
1245
Mel Gormaneb335752009-05-13 17:34:48 +01001246config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001247 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001248
Russell King07a2f732008-10-01 21:39:58 +01001249# Discontigmem is deprecated
Dave Hansen3f22ab22005-06-23 00:07:43 -07001250config ARCH_DISCONTIGMEM_ENABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252
Russell King05944d72006-11-30 20:43:51 +00001253config ARCH_SPARSEMEM_ENABLE
1254 bool
1255
Russell King07a2f732008-10-01 21:39:58 +01001256config ARCH_SPARSEMEM_DEFAULT
1257 def_bool ARCH_SPARSEMEM_ENABLE
1258
Russell King05944d72006-11-30 20:43:51 +00001259config ARCH_SELECT_MEMORY_MODEL
Russell King07a2f732008-10-01 21:39:58 +01001260 def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
Russell King05944d72006-11-30 20:43:51 +00001261
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001262config NODES_SHIFT
1263 int
1264 default "4" if ARCH_LH7A40X
1265 default "2"
1266 depends on NEED_MULTIPLE_NODES
1267
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001268config HIGHMEM
1269 bool "High Memory Support (EXPERIMENTAL)"
1270 depends on MMU && EXPERIMENTAL
1271 help
1272 The address space of ARM processors is only 4 Gigabytes large
1273 and it has to accommodate user address space, kernel address
1274 space as well as some memory mapped IO. That means that, if you
1275 have a large amount of physical memory and/or IO, not all of the
1276 memory can be "permanently mapped" by the kernel. The physical
1277 memory that is not permanently mapped is called "high memory".
1278
1279 Depending on the selected kernel/user memory split, minimum
1280 vmalloc space and actual amount of RAM, you may not need this
1281 option which should result in a slightly faster kernel.
1282
1283 If unsure, say n.
1284
Russell King65cec8e2009-08-17 20:02:06 +01001285config HIGHPTE
1286 bool "Allocate 2nd-level pagetables from highmem"
1287 depends on HIGHMEM
1288 depends on !OUTER_CACHE
1289
Jamie Iles1b8873a2010-02-02 20:25:44 +01001290config HW_PERF_EVENTS
1291 bool "Enable hardware performance counter support for perf events"
Jean PIHET796d1292010-01-26 18:51:05 +01001292 depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
Jamie Iles1b8873a2010-02-02 20:25:44 +01001293 default y
1294 help
1295 Enable hardware performance counter support for perf events. If
1296 disabled, perf events will use software events only.
1297
Dave Hansen3f22ab22005-06-23 00:07:43 -07001298source "mm/Kconfig"
1299
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300config LEDS
1301 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001302 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001303 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1305 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001306 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001307 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001308 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309 help
1310 If you say Y here, the LEDs on your machine will be used
1311 to provide useful information about your current system status.
1312
1313 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1314 be able to select which LEDs are active using the options below. If
1315 you are compiling a kernel for the EBSA-110 or the LART however, the
1316 red LED will simply flash regularly to indicate that the system is
1317 still functional. It is safe to say Y here if you have a CATS
1318 system, but the driver will do nothing.
1319
1320config LEDS_TIMER
1321 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001322 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1323 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001325 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326 default y if ARCH_EBSA110
1327 help
1328 If you say Y here, one of the system LEDs (the green one on the
1329 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1330 will flash regularly to indicate that the system is still
1331 operational. This is mainly useful to kernel hackers who are
1332 debugging unstable kernels.
1333
1334 The LART uses the same LED for both Timer LED and CPU usage LED
1335 functions. You may choose to use both, but the Timer LED function
1336 will overrule the CPU usage LED.
1337
1338config LEDS_CPU
1339 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001340 !ARCH_OMAP) \
1341 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1342 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343 depends on LEDS
1344 help
1345 If you say Y here, the red LED will be used to give a good real
1346 time indication of CPU usage, by lighting whenever the idle task
1347 is not currently executing.
1348
1349 The LART uses the same LED for both Timer LED and CPU usage LED
1350 functions. You may choose to use both, but the Timer LED function
1351 will overrule the CPU usage LED.
1352
1353config ALIGNMENT_TRAP
1354 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001355 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001357 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001359 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1361 address divisible by 4. On 32-bit ARM processors, these non-aligned
1362 fetch/store instructions will be emulated in software if you say
1363 here, which has a severe performance impact. This is necessary for
1364 correct operation of some network protocols. With an IP-only
1365 configuration it is safe to say N, otherwise say Y.
1366
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001367config UACCESS_WITH_MEMCPY
1368 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1369 depends on MMU && EXPERIMENTAL
1370 default y if CPU_FEROCEON
1371 help
1372 Implement faster copy_to_user and clear_user methods for CPU
1373 cores where a 8-word STM instruction give significantly higher
1374 memory write throughput than a sequence of individual 32bit stores.
1375
1376 A possible side effect is a slight increase in scheduling latency
1377 between threads sharing the same address space if they invoke
1378 such copy operations with large buffers.
1379
1380 However, if the CPU data cache is using a write-allocate mode,
1381 this option is unlikely to provide any performance gain.
1382
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383endmenu
1384
1385menu "Boot options"
1386
1387# Compressed boot loader in ROM. Yes, we really want to ask about
1388# TEXT and BSS so we preserve their values in the config files.
1389config ZBOOT_ROM_TEXT
1390 hex "Compressed ROM boot loader base address"
1391 default "0"
1392 help
1393 The physical address at which the ROM-able zImage is to be
1394 placed in the target. Platforms which normally make use of
1395 ROM-able zImage formats normally set this to a suitable
1396 value in their defconfig file.
1397
1398 If ZBOOT_ROM is not enabled, this has no effect.
1399
1400config ZBOOT_ROM_BSS
1401 hex "Compressed ROM boot loader BSS address"
1402 default "0"
1403 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001404 The base address of an area of read/write memory in the target
1405 for the ROM-able zImage which must be available while the
1406 decompressor is running. It must be large enough to hold the
1407 entire decompressed kernel plus an additional 128 KiB.
1408 Platforms which normally make use of ROM-able zImage formats
1409 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410
1411 If ZBOOT_ROM is not enabled, this has no effect.
1412
1413config ZBOOT_ROM
1414 bool "Compressed boot loader in ROM/flash"
1415 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1416 help
1417 Say Y here if you intend to execute your compressed kernel image
1418 (zImage) directly from ROM or flash. If unsure, say N.
1419
1420config CMDLINE
1421 string "Default kernel command string"
1422 default ""
1423 help
1424 On some architectures (EBSA110 and CATS), there is currently no way
1425 for the boot loader to pass arguments to the kernel. For these
1426 architectures, you should supply some command-line options at build
1427 time by entering them here. As a minimum, you should specify the
1428 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1429
1430config XIP_KERNEL
1431 bool "Kernel Execute-In-Place from ROM"
1432 depends on !ZBOOT_ROM
1433 help
1434 Execute-In-Place allows the kernel to run from non-volatile storage
1435 directly addressable by the CPU, such as NOR flash. This saves RAM
1436 space since the text section of the kernel is not loaded from flash
1437 to RAM. Read-write sections, such as the data section and stack,
1438 are still copied to RAM. The XIP kernel is not compressed since
1439 it has to run directly from flash, so it will take more space to
1440 store it. The flash address used to link the kernel object files,
1441 and for storing it, is configuration dependent. Therefore, if you
1442 say Y here, you must know the proper physical address where to
1443 store the kernel image depending on your own flash memory usage.
1444
1445 Also note that the make target becomes "make xipImage" rather than
1446 "make zImage" or "make Image". The final kernel binary to put in
1447 ROM memory will be arch/arm/boot/xipImage.
1448
1449 If unsure, say N.
1450
1451config XIP_PHYS_ADDR
1452 hex "XIP Kernel Physical Location"
1453 depends on XIP_KERNEL
1454 default "0x00080000"
1455 help
1456 This is the physical address in your flash memory the kernel will
1457 be linked for and stored to. This address is dependent on your
1458 own flash usage.
1459
Richard Purdiec587e4a2007-02-06 21:29:00 +01001460config KEXEC
1461 bool "Kexec system call (EXPERIMENTAL)"
1462 depends on EXPERIMENTAL
1463 help
1464 kexec is a system call that implements the ability to shutdown your
1465 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001466 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001467 you can start any kernel with it, not just Linux.
1468
1469 It is an ongoing process to be certain the hardware in a machine
1470 is properly shutdown, so do not be surprised if this code does not
1471 initially work for you. It may help to enable device hotplugging
1472 support.
1473
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001474config ATAGS_PROC
1475 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001476 depends on KEXEC
1477 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001478 help
1479 Should the atags used to boot the kernel be exported in an "atags"
1480 file in procfs. Useful with kexec.
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482endmenu
1483
Russell Kingac9d7ef2008-08-18 17:26:00 +01001484menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485
Ben Dooks89c52ed2009-07-30 23:23:24 +01001486if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487
1488source "drivers/cpufreq/Kconfig"
1489
1490config CPU_FREQ_SA1100
1491 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492
1493config CPU_FREQ_SA1110
1494 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495
1496config CPU_FREQ_INTEGRATOR
1497 tristate "CPUfreq driver for ARM Integrator CPUs"
1498 depends on ARCH_INTEGRATOR && CPU_FREQ
1499 default y
1500 help
1501 This enables the CPUfreq driver for ARM Integrator CPUs.
1502
1503 For details, take a look at <file:Documentation/cpu-freq>.
1504
1505 If in doubt, say Y.
1506
Russell King9e2697f2007-12-14 13:30:14 +00001507config CPU_FREQ_PXA
1508 bool
1509 depends on CPU_FREQ && ARCH_PXA && PXA25x
1510 default y
1511 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1512
Mark Brownb3748dd2009-06-15 11:23:20 +01001513config CPU_FREQ_S3C64XX
1514 bool "CPUfreq support for Samsung S3C64XX CPUs"
1515 depends on CPU_FREQ && CPU_S3C6410
1516
Ben Dooks9d56c022009-07-30 23:23:25 +01001517config CPU_FREQ_S3C
1518 bool
1519 help
1520 Internal configuration node for common cpufreq on Samsung SoC
1521
1522config CPU_FREQ_S3C24XX
1523 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1524 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1525 select CPU_FREQ_S3C
1526 help
1527 This enables the CPUfreq driver for the Samsung S3C24XX family
1528 of CPUs.
1529
1530 For details, take a look at <file:Documentation/cpu-freq>.
1531
1532 If in doubt, say N.
1533
1534config CPU_FREQ_S3C24XX_PLL
1535 bool "Support CPUfreq changing of PLL frequency"
1536 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1537 help
1538 Compile in support for changing the PLL frequency from the
1539 S3C24XX series CPUfreq driver. The PLL takes time to settle
1540 after a frequency change, so by default it is not enabled.
1541
1542 This also means that the PLL tables for the selected CPU(s) will
1543 be built which may increase the size of the kernel image.
1544
1545config CPU_FREQ_S3C24XX_DEBUG
1546 bool "Debug CPUfreq Samsung driver core"
1547 depends on CPU_FREQ_S3C24XX
1548 help
1549 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1550
1551config CPU_FREQ_S3C24XX_IODEBUG
1552 bool "Debug CPUfreq Samsung driver IO timing"
1553 depends on CPU_FREQ_S3C24XX
1554 help
1555 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1556
Ben Dookse6d197a2009-07-30 23:23:42 +01001557config CPU_FREQ_S3C24XX_DEBUGFS
1558 bool "Export debugfs for CPUFreq"
1559 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1560 help
1561 Export status information via debugfs.
1562
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563endif
1564
Russell Kingac9d7ef2008-08-18 17:26:00 +01001565source "drivers/cpuidle/Kconfig"
1566
1567endmenu
1568
Linus Torvalds1da177e2005-04-16 15:20:36 -07001569menu "Floating point emulation"
1570
1571comment "At least one emulation must be selected"
1572
1573config FPE_NWFPE
1574 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001575 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576 ---help---
1577 Say Y to include the NWFPE floating point emulator in the kernel.
1578 This is necessary to run most binaries. Linux does not currently
1579 support floating point hardware so you need to say Y here even if
1580 your machine has an FPA or floating point co-processor podule.
1581
1582 You may say N here if you are going to load the Acorn FPEmulator
1583 early in the bootup.
1584
1585config FPE_NWFPE_XP
1586 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001587 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588 help
1589 Say Y to include 80-bit support in the kernel floating-point
1590 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1591 Note that gcc does not generate 80-bit operations by default,
1592 so in most cases this option only enlarges the size of the
1593 floating point emulator without any good reason.
1594
1595 You almost surely want to say N here.
1596
1597config FPE_FASTFPE
1598 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001599 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001600 ---help---
1601 Say Y here to include the FAST floating point emulator in the kernel.
1602 This is an experimental much faster emulator which now also has full
1603 precision for the mantissa. It does not support any exceptions.
1604 It is very simple, and approximately 3-6 times faster than NWFPE.
1605
1606 It should be sufficient for most programs. It may be not suitable
1607 for scientific calculations, but you have to check this for yourself.
1608 If you do not feel you need a faster FP emulation you should better
1609 choose NWFPE.
1610
1611config VFP
1612 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001613 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614 help
1615 Say Y to include VFP support code in the kernel. This is needed
1616 if your hardware includes a VFP unit.
1617
1618 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1619 release notes and additional status information.
1620
1621 Say N if your target does not have VFP hardware.
1622
Catalin Marinas25ebee02007-09-25 15:22:24 +01001623config VFPv3
1624 bool
1625 depends on VFP
1626 default y if CPU_V7
1627
Catalin Marinasb5872db2008-01-10 19:16:17 +01001628config NEON
1629 bool "Advanced SIMD (NEON) Extension support"
1630 depends on VFPv3 && CPU_V7
1631 help
1632 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1633 Extension.
1634
Linus Torvalds1da177e2005-04-16 15:20:36 -07001635endmenu
1636
1637menu "Userspace binary formats"
1638
1639source "fs/Kconfig.binfmt"
1640
1641config ARTHUR
1642 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001643 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644 help
1645 Say Y here to include the kernel code necessary if you want to run
1646 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1647 experimental; if this sounds frightening, say N and sleep in peace.
1648 You can also say M here to compile this support as a module (which
1649 will be called arthur).
1650
1651endmenu
1652
1653menu "Power management options"
1654
Russell Kingeceab4a2005-11-15 11:31:41 +00001655source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656
Johannes Bergf4cb5702007-12-08 02:14:00 +01001657config ARCH_SUSPEND_POSSIBLE
1658 def_bool y
1659
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660endmenu
1661
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001662source "net/Kconfig"
1663
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001664source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001665
1666source "fs/Kconfig"
1667
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668source "arch/arm/Kconfig.debug"
1669
1670source "security/Kconfig"
1671
1672source "crypto/Kconfig"
1673
1674source "lib/Kconfig"