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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +010010 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 help
32 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 Europe. There is an ARM Linux project with a web page at
37 <http://www.arm.linux.org.uk/>.
38
Russell King1a189b92008-04-13 21:41:55 +010039config HAVE_PWM
40 bool
41
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010042config MIGHT_HAVE_PCI
43 bool
44
Ralf Baechle75e71532007-02-09 17:08:58 +000045config SYS_SUPPORTS_APM_EMULATION
46 bool
47
Russell King112f38a42010-12-15 19:23:07 +000048config HAVE_SCHED_CLOCK
49 bool
50
David Brownell0a938b92007-03-05 00:30:18 -080051config GENERIC_GPIO
52 bool
David Brownell0a938b92007-03-05 00:30:18 -080053
John Stultz5cfc8ee2010-03-24 00:22:36 +000054config ARCH_USES_GETTIMEOFFSET
55 bool
56 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010057
Kevin Hilman0567a0c2007-03-13 20:29:24 +010058config GENERIC_CLOCKEVENTS
59 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010060
Catalin Marinasa8655e82008-02-04 17:30:57 +010061config GENERIC_CLOCKEVENTS_BROADCAST
62 bool
63 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010064 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010065
Linus Walleijbc581772009-09-15 17:30:37 +010066config HAVE_TCM
67 bool
68 select GENERIC_ALLOCATOR
69
Russell Kinge119bff2010-01-10 17:23:29 +000070config HAVE_PROC_CPU
71 bool
72
Al Viro5ea81762007-02-11 15:41:31 +000073config NO_IOPORT
74 bool
Al Viro5ea81762007-02-11 15:41:31 +000075
Linus Torvalds1da177e2005-04-16 15:20:36 -070076config EISA
77 bool
78 ---help---
79 The Extended Industry Standard Architecture (EISA) bus was
80 developed as an open alternative to the IBM MicroChannel bus.
81
82 The EISA bus provided some of the features of the IBM MicroChannel
83 bus while maintaining backward compatibility with cards made for
84 the older ISA bus. The EISA bus saw limited use between 1988 and
85 1995 when it was made obsolete by the PCI bus.
86
87 Say Y here if you are building a kernel for an EISA-based machine.
88
89 Otherwise, say N.
90
91config SBUS
92 bool
93
94config MCA
95 bool
96 help
97 MicroChannel Architecture is found in some IBM PS/2 machines and
98 laptops. It is a bus system similar to PCI or ISA. See
99 <file:Documentation/mca.txt> (and especially the web page given
100 there) before attempting to build an MCA bus kernel.
101
Russell Kingf16fb1e2007-04-28 09:59:37 +0100102config STACKTRACE_SUPPORT
103 bool
104 default y
105
Nicolas Pitref76e9152008-04-24 01:31:46 -0400106config HAVE_LATENCYTOP_SUPPORT
107 bool
108 depends on !SMP
109 default y
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config LOCKDEP_SUPPORT
112 bool
113 default y
114
Russell King7ad1bcb2006-08-27 12:07:02 +0100115config TRACE_IRQFLAGS_SUPPORT
116 bool
117 default y
118
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100119config HARDIRQS_SW_RESEND
120 bool
121 default y
122
123config GENERIC_IRQ_PROBE
124 bool
125 default y
126
Nick Piggin95c354f2008-01-30 13:31:20 +0100127config GENERIC_LOCKBREAK
128 bool
129 default y
130 depends on SMP && PREEMPT
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config RWSEM_GENERIC_SPINLOCK
133 bool
134 default y
135
136config RWSEM_XCHGADD_ALGORITHM
137 bool
138
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139config ARCH_HAS_ILOG2_U32
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
142config ARCH_HAS_ILOG2_U64
143 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144
Ben Dooks89c52ed2009-07-30 23:23:24 +0100145config ARCH_HAS_CPUFREQ
146 bool
147 help
148 Internal node to signify that the ARCH has CPUFREQ support
149 and that the relevant menu configurations are displayed for
150 it.
151
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100152config ARCH_HAS_CPU_IDLE_WAIT
153 def_bool y
154
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800155config GENERIC_HWEIGHT
156 bool
157 default y
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config GENERIC_CALIBRATE_DELAY
160 bool
161 default y
162
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100163config ARCH_MAY_HAVE_PC_FDC
164 bool
165
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800166config ZONE_DMA
167 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800168
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800169config NEED_DMA_MAP_STATE
170 def_bool y
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config GENERIC_ISA_DMA
173 bool
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config FIQ
176 bool
177
Al Viro034d2f52005-12-19 16:27:59 -0500178config ARCH_MTD_XIP
179 bool
180
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Russell Kingccf50e22010-03-15 19:03:06 +0000207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000220 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100227 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100228 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000229 select ICST
Russell King13edd862010-01-15 21:49:23 +0000230 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000231 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100238 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000239 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000240 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100241 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100242 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000243 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000244 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000245 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100246 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100247 help
248 This enables support for ARM Ltd RealView boards.
249
250config ARCH_VERSATILE
251 bool "ARM Ltd. Versatile family"
252 select ARM_AMBA
253 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100254 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000255 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000256 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100257 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100258 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000259 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000260 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000261 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100262 help
263 This enables support for ARM Ltd Versatile board.
264
Russell Kingceade892010-02-11 21:44:53 +0000265config ARCH_VEXPRESS
266 bool "ARM Ltd. Versatile Express family"
267 select ARCH_WANT_OPTIONAL_GPIOLIB
268 select ARM_AMBA
269 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100270 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000271 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000272 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000273 select HAVE_SCHED_CLOCK
Nick Bowler95c34f82011-01-21 15:51:06 +0100274 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000275 select ICST
276 select PLAT_VERSATILE
277 help
278 This enables support for the ARM Ltd Versatile Express boards.
279
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100280config ARCH_AT91
281 bool "Atmel AT91"
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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100293 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000294 select GENERIC_CLOCKEVENTS
295 select ARCH_WANT_OPTIONAL_GPIOLIB
296 help
297 Support for Broadcom's BCMRing platform.
298
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100300 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000301 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000302 select ARCH_USES_GETTIMEOFFSET
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
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300306config ARCH_CNS3XXX
307 bool "Cavium Networks CNS3XXX family"
308 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300309 select GENERIC_CLOCKEVENTS
310 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100311 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400312 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300313 help
314 Support for Cavium Networks CNS3XXX platform.
315
Russell King788c9702009-04-26 14:21:59 +0100316config ARCH_GEMINI
317 bool "Cortina Systems Gemini"
318 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100319 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000320 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100321 help
322 Support for the Cortina Systems Gemini family SoCs
323
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324config ARCH_EBSA110
325 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000326 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100327 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000328 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000329 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 help
331 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000332 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 Ethernet interface, two PCMCIA sockets, two serial ports and a
334 parallel port.
335
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000336config ARCH_EP93XX
337 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000338 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000339 select ARM_AMBA
340 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100341 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700342 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100343 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000344 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000345 help
346 This enables support for the Cirrus EP93xx series of CPUs.
347
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348config ARCH_FOOTBRIDGE
349 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000350 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000352 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000353 help
354 Support for systems based on the DC21285 companion chip
355 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
Russell King788c9702009-04-26 14:21:59 +0100357config ARCH_MXC
358 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100359 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100360 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100361 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100362 help
363 Support for Freescale MXC/iMX-based family of processors
364
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800365config ARCH_MXS
366 bool "Freescale MXS-based"
367 select GENERIC_CLOCKEVENTS
368 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100369 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800370 help
371 Support for Freescale MXS-based family of processors
372
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100373config ARCH_STMP3XXX
374 bool "Freescale STMP3xxx"
375 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100376 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100377 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100378 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100379 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
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000388 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100389 This enables support for systems based on the Hilscher NetX Soc
390
391config ARCH_H720X
392 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100394 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000395 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 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
Russell Kingbb2b1802008-07-26 15:36:03 +0100416 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000417 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100418 Support for Intel's 80219 and IOP32X (XScale) family of
419 processors.
420
421config ARCH_IOP33X
422 bool "IOP33x-based"
423 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100425 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100426 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100427 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 help
429 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
Russell King3b938be2007-05-12 11:25:44 +0100431config ARCH_IXP23XX
432 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100435 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000436 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100437 help
Russell King3b938be2007-05-12 11:25:44 +0100438 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439
440config ARCH_IXP2000
441 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100442 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000443 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100444 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000445 select ARCH_USES_GETTIMEOFFSET
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_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000455 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100456 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100457 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100458 help
Russell King3b938be2007-05-12 11:25:44 +0100459 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100460
Saeed Bisharaedabd382009-08-06 15:12:43 +0300461config ARCH_DOVE
462 bool "Marvell Dove"
463 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300464 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300465 select GENERIC_CLOCKEVENTS
466 select PLAT_ORION
467 help
468 Support for the Marvell Dove SoC 88AP510
469
Saeed Bishara651c74c2008-06-22 22:45:06 +0200470config ARCH_KIRKWOOD
471 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000472 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200473 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700474 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200475 select GENERIC_CLOCKEVENTS
476 select PLAT_ORION
477 help
478 Support for the following Marvell Kirkwood series SoCs:
479 88F6180, 88F6192 and 88F6281.
480
Russell King788c9702009-04-26 14:21:59 +0100481config ARCH_LOKI
482 bool "Marvell Loki (88RC8480)"
483 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100484 select GENERIC_CLOCKEVENTS
485 select PLAT_ORION
486 help
487 Support for the Marvell Loki (88RC8480) SoC.
488
Kevin Wells40805942010-07-27 08:49:04 -0700489config ARCH_LPC32XX
490 bool "NXP LPC32XX"
491 select CPU_ARM926T
492 select ARCH_REQUIRE_GPIOLIB
493 select HAVE_IDE
494 select ARM_AMBA
495 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100496 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700497 select GENERIC_TIME
498 select GENERIC_CLOCKEVENTS
499 help
500 Support for the NXP LPC32XX family of processors
501
Russell King788c9702009-04-26 14:21:59 +0100502config ARCH_MV78XX0
503 bool "Marvell MV78xx0"
504 select CPU_FEROCEON
505 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700506 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100507 select GENERIC_CLOCKEVENTS
508 select PLAT_ORION
509 help
510 Support for the following Marvell MV78xx0 series SoCs:
511 MV781x0, MV782x0.
512
513config ARCH_ORION5X
514 bool "Marvell Orion"
515 depends on MMU
516 select CPU_FEROCEON
517 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700518 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100519 select GENERIC_CLOCKEVENTS
520 select PLAT_ORION
521 help
522 Support for the following Marvell Orion 5x series SoCs:
523 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
524 Orion-2 (5281), Orion-1-90 (6183).
525
526config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500527 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100528 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100529 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100530 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100531 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000532 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100533 select TICK_ONESHOT
534 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400535 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100536 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500537 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100538
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100539config ARCH_KS8695
540 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000541 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100542 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000543 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100544 help
545 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
546 System-on-Chip devices.
547
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100548config ARCH_NS9XXX
549 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000550 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100551 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100552 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700553 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100554 help
555 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
556 System.
557
558 <http://www.digi.com/products/microprocessors/index.jsp>
559
Russell King788c9702009-04-26 14:21:59 +0100560config ARCH_W90X900
561 bool "Nuvoton W90X900 CPU"
562 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100563 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100564 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100565 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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100578 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100579 help
580 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
581 low-power and high performance MPEG-4/JPEG multimedia controller chip.
582
Erik Gillingc5f80062010-01-21 16:53:02 -0800583config ARCH_TEGRA
584 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000585 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800586 select GENERIC_TIME
587 select GENERIC_CLOCKEVENTS
588 select GENERIC_GPIO
589 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000590 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800591 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700592 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800593 help
594 This enables support for NVIDIA Tegra based systems (Tegra APX,
595 Tegra 6xx and Tegra 2 series).
596
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100597config ARCH_PNX4008
598 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000599 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100600 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000601 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100602 help
603 This enables support for Philips PNX4008 mobile platform.
604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700606 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100607 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500608 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100609 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100610 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700611 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100612 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000613 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000614 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800615 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800616 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000617 help
eric miao2c8086a2007-09-11 19:13:17 -0700618 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619
Russell King788c9702009-04-26 14:21:59 +0100620config ARCH_MSM
621 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500622 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800623 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700624 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800625 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800626 Support for Qualcomm MSM/QSD based systems. This runs on the
627 apps processor of the MSM/QSD and depends on a shared memory
628 interface to the modem processor which runs the baseband
629 stack and controls some vital subsystems
630 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800631
Magnus Dammc793c1b2010-02-05 11:14:49 +0000632config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900633 bool "Renesas SH-Mobile / R-Mobile"
634 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900635 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900636 select GENERIC_CLOCKEVENTS
637 select NO_IOPORT
638 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000639 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000640 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900641 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643config ARCH_RPC
644 bool "RiscPC"
645 select ARCH_ACORN
646 select FIQ
647 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100648 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100649 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000650 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000651 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100652 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000653 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654 help
655 On the Acorn Risc-PC, Linux can support the internal IDE disk and
656 CD-ROM interface, serial and parallel port, and the floppy drive.
657
658config ARCH_SA1100
659 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000660 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100661 select ISA
Russell King05944d72006-11-30 20:43:51 +0000662 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500663 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100664 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000665 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100666 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700667 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000668 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100669 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700670 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000671 help
672 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673
674config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900675 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800676 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100677 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700678 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000679 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900680 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681 help
682 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
683 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000684 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685
Ben Dooks63b1f512010-04-30 16:32:26 +0900686 Note, the S3C2416 and the S3C2450 are so close that they even share
687 the same SoC ID code. This means that there is no seperate machine
688 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
689
Ben Dooksa08ab632008-10-21 14:06:39 +0100690config ARCH_S3C64XX
691 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000692 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900693 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900694 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100695 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900696 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000697 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100698 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900699 select ARCH_REQUIRE_GPIOLIB
700 select SAMSUNG_CLKSRC
701 select SAMSUNG_IRQ_VIC_TIMER
702 select SAMSUNG_IRQ_UART
703 select S3C_GPIO_TRACK
704 select S3C_GPIO_PULL_UPDOWN
705 select S3C_GPIO_CFG_S3C24XX
706 select S3C_GPIO_CFG_S3C64XX
707 select S3C_DEV_NAND
708 select USB_ARCH_HAS_OHCI
709 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900710 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900711 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100712 help
713 Samsung S3C64XX series based systems
714
Kukjin Kim49b7a492010-09-07 15:47:18 +0900715config ARCH_S5P64X0
716 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900717 select CPU_V6
718 select GENERIC_GPIO
719 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900720 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900721 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900722 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900723 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900724 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900725 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
726 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900727
Kukjin Kim550db7f2010-01-29 10:19:26 +0900728config ARCH_S5P6442
729 bool "Samsung S5P6442"
730 select CPU_V6
731 select GENERIC_GPIO
732 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900733 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900734 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900735 help
736 Samsung S5P6442 CPU based systems
737
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200738config ARCH_S5PC100
739 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900740 select GENERIC_GPIO
741 select HAVE_CLK
742 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100743 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900744 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900745 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900746 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900747 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900748 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200749 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900750
Kukjin Kim170f4e42010-02-24 16:40:44 +0900751config ARCH_S5PV210
752 bool "Samsung S5PV210/S5PC110"
753 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900754 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900755 select GENERIC_GPIO
756 select HAVE_CLK
757 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900758 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900759 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900760 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900761 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900762 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900763 help
764 Samsung S5PV210/S5PC110 series based systems
765
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900766config ARCH_S5PV310
767 bool "Samsung S5PV310/S5PC210"
768 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900769 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900770 select GENERIC_GPIO
771 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900772 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900773 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900774 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900775 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900776 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900777 help
778 Samsung S5PV310 series based systems
779
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780config ARCH_SHARK
781 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000782 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100783 select ISA
784 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100785 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100786 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000787 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000788 help
789 Support for the StrongARM based Digital DNARD machine, also known
790 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791
Hans J. Koch83ef3332010-09-17 18:13:56 +0200792config ARCH_TCC_926
793 bool "Telechips TCC ARM926-based systems"
794 select CPU_ARM926T
795 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100796 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200797 select GENERIC_CLOCKEVENTS
798 help
799 Support for Telechips TCC ARM926-based systems.
800
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801config ARCH_LH7A40X
802 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000803 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100804 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000805 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806 help
807 Say Y here for systems based on one of the Sharp LH7A40X
808 System on a Chip processors. These CPUs include an ARM922T
809 core with a wide array of integrated devices for
810 hand-held and low-power applications.
811
Linus Walleijd98aac72009-04-27 10:21:46 +0100812config ARCH_U300
813 bool "ST-Ericsson U300 Series"
814 depends on MMU
815 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000816 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100817 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100818 select ARM_AMBA
819 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100820 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100821 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100822 select GENERIC_GPIO
823 help
824 Support for ST-Ericsson U300 series mobile platforms.
825
Russell Kingccf50e22010-03-15 19:03:06 +0000826config ARCH_U8500
827 bool "ST-Ericsson U8500 Series"
828 select CPU_V7
829 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000830 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100831 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100832 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100833 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000834 help
835 Support for ST-Ericsson's Ux500 architecture
836
837config ARCH_NOMADIK
838 bool "STMicroelectronics Nomadik"
839 select ARM_AMBA
840 select ARM_VIC
841 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100842 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000843 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000844 select ARCH_REQUIRE_GPIOLIB
845 help
846 Support for the Nomadik platform by ST-Ericsson
847
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100848config ARCH_DAVINCI
849 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100850 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700851 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100852 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700853 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100854 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700855 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530856 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100857 help
858 Support for TI's DaVinci platform.
859
Russell King3b938be2007-05-12 11:25:44 +0100860config ARCH_OMAP
861 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700862 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700863 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100864 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700865 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000866 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800867 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100868 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200869 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100870
viresh kumarcee37e52010-04-01 12:31:05 +0100871config PLAT_SPEAR
872 bool "ST SPEAr"
873 select ARM_AMBA
874 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100875 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100876 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100877 select HAVE_CLK
878 help
879 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
880
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881endchoice
882
Russell Kingccf50e22010-03-15 19:03:06 +0000883#
884# This is sorted alphabetically by mach-* pathname. However, plat-*
885# Kconfigs may be included either alphabetically (according to the
886# plat- suffix) or along side the corresponding mach-* source.
887#
Russell King95b8f202010-01-14 11:43:54 +0000888source "arch/arm/mach-aaec2000/Kconfig"
889
890source "arch/arm/mach-at91/Kconfig"
891
892source "arch/arm/mach-bcmring/Kconfig"
893
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894source "arch/arm/mach-clps711x/Kconfig"
895
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300896source "arch/arm/mach-cns3xxx/Kconfig"
897
Russell King95b8f202010-01-14 11:43:54 +0000898source "arch/arm/mach-davinci/Kconfig"
899
900source "arch/arm/mach-dove/Kconfig"
901
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000902source "arch/arm/mach-ep93xx/Kconfig"
903
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904source "arch/arm/mach-footbridge/Kconfig"
905
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200906source "arch/arm/mach-gemini/Kconfig"
907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-h720x/Kconfig"
909
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910source "arch/arm/mach-integrator/Kconfig"
911
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100912source "arch/arm/mach-iop32x/Kconfig"
913
914source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915
Dan Williams285f5fa2006-12-07 02:59:39 +0100916source "arch/arm/mach-iop13xx/Kconfig"
917
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918source "arch/arm/mach-ixp4xx/Kconfig"
919
920source "arch/arm/mach-ixp2000/Kconfig"
921
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100922source "arch/arm/mach-ixp23xx/Kconfig"
923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/mach-kirkwood/Kconfig"
925
926source "arch/arm/mach-ks8695/Kconfig"
927
928source "arch/arm/mach-lh7a40x/Kconfig"
929
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200930source "arch/arm/mach-loki/Kconfig"
931
Kevin Wells40805942010-07-27 08:49:04 -0700932source "arch/arm/mach-lpc32xx/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/mach-msm/Kconfig"
935
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200936source "arch/arm/mach-mv78xx0/Kconfig"
937
Russell King95b8f202010-01-14 11:43:54 +0000938source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800940source "arch/arm/mach-mxs/Kconfig"
941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800943
Russell King95b8f202010-01-14 11:43:54 +0000944source "arch/arm/mach-nomadik/Kconfig"
945source "arch/arm/plat-nomadik/Kconfig"
946
947source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Russell Kingd91a89102010-02-04 18:13:17 +0000949source "arch/arm/mach-nuc93x/Kconfig"
950
Tony Lindgrend48af152005-07-10 19:58:17 +0100951source "arch/arm/plat-omap/Kconfig"
952
953source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Tony Lindgren1dbae812005-11-10 14:26:51 +0000955source "arch/arm/mach-omap2/Kconfig"
956
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400957source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-pxa/Kconfig"
960source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-mmp/Kconfig"
963
964source "arch/arm/mach-realview/Kconfig"
965
966source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300967
Ben Dookscf383672009-11-10 00:14:58 +0000968source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900970source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100971
viresh kumarcee37e52010-04-01 12:31:05 +0100972source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100973
Hans J. Koch83ef3332010-09-17 18:13:56 +0200974source "arch/arm/plat-tcc/Kconfig"
975
Ben Dooksa21765a2007-02-11 18:31:01 +0100976if ARCH_S3C2410
977source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900980source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100982source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100983endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984
Ben Dooksa08ab632008-10-21 14:06:39 +0100985if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900986source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100987endif
988
Kukjin Kim49b7a492010-09-07 15:47:18 +0900989source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900990
Kukjin Kim550db7f2010-01-29 10:19:26 +0900991source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100992
Byungho Min5a7652f2009-06-23 21:39:42 +0900993source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900994
Kukjin Kim170f4e42010-02-24 16:40:44 +0900995source "arch/arm/mach-s5pv210/Kconfig"
996
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900997source "arch/arm/mach-s5pv310/Kconfig"
998
Russell King882d01f2010-03-02 23:40:15 +0000999source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
Russell King882d01f2010-03-02 23:40:15 +00001001source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001002
Erik Gillingc5f80062010-01-21 16:53:02 -08001003source "arch/arm/mach-tegra/Kconfig"
1004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001006
Russell King95b8f202010-01-14 11:43:54 +00001007source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008
1009source "arch/arm/mach-versatile/Kconfig"
1010
Russell Kingceade892010-02-11 21:44:53 +00001011source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001012source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001013
wanzongshun7ec80dd2008-12-03 03:55:38 +01001014source "arch/arm/mach-w90x900/Kconfig"
1015
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016# Definitions to make life easier
1017config ARCH_ACORN
1018 bool
1019
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001020config PLAT_IOP
1021 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001022 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001023 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001024
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001025config PLAT_ORION
1026 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001027 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001028
Eric Miaobd5ce432009-01-20 12:06:01 +08001029config PLAT_PXA
1030 bool
1031
Russell Kingf4b8b312010-01-14 12:48:06 +00001032config PLAT_VERSATILE
1033 bool
1034
Russell Kinge3887712010-01-14 13:30:16 +00001035config ARM_TIMER_SP804
1036 bool
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038source arch/arm/mm/Kconfig
1039
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001040config IWMMXT
1041 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001042 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1043 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001044 help
1045 Enable support for iWMMXt context switching at run time if
1046 running on a CPU that supports it.
1047
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1049config XSCALE_PMU
1050 bool
1051 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1052 default y
1053
Jamie Iles0f4f0672010-02-02 20:23:15 +01001054config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001055 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1056 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001057 default y
1058 bool
1059
eric miao52108642010-12-13 09:42:34 +01001060config MULTI_IRQ_HANDLER
1061 bool
1062 help
1063 Allow each machine to specify it's own IRQ handler at run time.
1064
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001065if !MMU
1066source "arch/arm/Kconfig-nommu"
1067endif
1068
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001069config ARM_ERRATA_411920
1070 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001071 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001072 help
1073 Invalidation of the Instruction Cache operation can
1074 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1075 It does not affect the MPCore. This option enables the ARM Ltd.
1076 recommended workaround.
1077
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001078config ARM_ERRATA_430973
1079 bool "ARM errata: Stale prediction on replaced interworking branch"
1080 depends on CPU_V7
1081 help
1082 This option enables the workaround for the 430973 Cortex-A8
1083 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1084 interworking branch is replaced with another code sequence at the
1085 same virtual address, whether due to self-modifying code or virtual
1086 to physical address re-mapping, Cortex-A8 does not recover from the
1087 stale interworking branch prediction. This results in Cortex-A8
1088 executing the new code sequence in the incorrect ARM or Thumb state.
1089 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1090 and also flushes the branch target cache at every context switch.
1091 Note that setting specific bits in the ACTLR register may not be
1092 available in non-secure mode.
1093
Catalin Marinas855c5512009-04-30 17:06:15 +01001094config ARM_ERRATA_458693
1095 bool "ARM errata: Processor deadlock when a false hazard is created"
1096 depends on CPU_V7
1097 help
1098 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1099 erratum. For very specific sequences of memory operations, it is
1100 possible for a hazard condition intended for a cache line to instead
1101 be incorrectly associated with a different cache line. This false
1102 hazard might then cause a processor deadlock. The workaround enables
1103 the L1 caching of the NEON accesses and disables the PLD instruction
1104 in the ACTLR register. Note that setting specific bits in the ACTLR
1105 register may not be available in non-secure mode.
1106
Catalin Marinas0516e462009-04-30 17:06:20 +01001107config ARM_ERRATA_460075
1108 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1109 depends on CPU_V7
1110 help
1111 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1112 erratum. Any asynchronous access to the L2 cache may encounter a
1113 situation in which recent store transactions to the L2 cache are lost
1114 and overwritten with stale memory contents from external memory. The
1115 workaround disables the write-allocate mode for the L2 cache via the
1116 ACTLR register. Note that setting specific bits in the ACTLR register
1117 may not be available in non-secure mode.
1118
Will Deacon9f050272010-09-14 09:51:43 +01001119config ARM_ERRATA_742230
1120 bool "ARM errata: DMB operation may be faulty"
1121 depends on CPU_V7 && SMP
1122 help
1123 This option enables the workaround for the 742230 Cortex-A9
1124 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1125 between two write operations may not ensure the correct visibility
1126 ordering of the two writes. This workaround sets a specific bit in
1127 the diagnostic register of the Cortex-A9 which causes the DMB
1128 instruction to behave as a DSB, ensuring the correct behaviour of
1129 the two writes.
1130
Will Deacona672e992010-09-14 09:53:02 +01001131config ARM_ERRATA_742231
1132 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1133 depends on CPU_V7 && SMP
1134 help
1135 This option enables the workaround for the 742231 Cortex-A9
1136 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1137 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1138 accessing some data located in the same cache line, may get corrupted
1139 data due to bad handling of the address hazard when the line gets
1140 replaced from one of the CPUs at the same time as another CPU is
1141 accessing it. This workaround sets specific bits in the diagnostic
1142 register of the Cortex-A9 which reduces the linefill issuing
1143 capabilities of the processor.
1144
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001145config PL310_ERRATA_588369
1146 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1147 depends on CACHE_L2X0 && ARCH_OMAP4
1148 help
1149 The PL310 L2 cache controller implements three types of Clean &
1150 Invalidate maintenance operations: by Physical Address
1151 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1152 They are architecturally defined to behave as the execution of a
1153 clean operation followed immediately by an invalidate operation,
1154 both performing to the same memory location. This functionality
1155 is not correctly implemented in PL310 as clean lines are not
1156 invalidated as a result of these operations. Note that this errata
1157 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001158
1159config ARM_ERRATA_720789
1160 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1161 depends on CPU_V7 && SMP
1162 help
1163 This option enables the workaround for the 720789 Cortex-A9 (prior to
1164 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1165 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1166 As a consequence of this erratum, some TLB entries which should be
1167 invalidated are not, resulting in an incoherency in the system page
1168 tables. The workaround changes the TLB flushing routines to invalidate
1169 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001170
1171config ARM_ERRATA_743622
1172 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1173 depends on CPU_V7
1174 help
1175 This option enables the workaround for the 743622 Cortex-A9
1176 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1177 optimisation in the Cortex-A9 Store Buffer may lead to data
1178 corruption. This workaround sets a specific bit in the diagnostic
1179 register of the Cortex-A9 which disables the Store Buffer
1180 optimisation, preventing the defect from occurring. This has no
1181 visible impact on the overall performance or power consumption of the
1182 processor.
1183
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184endmenu
1185
1186source "arch/arm/common/Kconfig"
1187
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188menu "Bus support"
1189
1190config ARM_AMBA
1191 bool
1192
1193config ISA
1194 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 help
1196 Find out whether you have ISA slots on your motherboard. ISA is the
1197 name of a bus system, i.e. the way the CPU talks to the other stuff
1198 inside your box. Other bus systems are PCI, EISA, MicroChannel
1199 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1200 newer boards don't support it. If you have ISA, say Y, otherwise N.
1201
Russell King065909b2006-01-04 15:44:16 +00001202# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203config ISA_DMA
1204 bool
Russell King065909b2006-01-04 15:44:16 +00001205 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Russell King065909b2006-01-04 15:44:16 +00001207# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001208config ISA_DMA_API
1209 bool
Al Viro5cae8412005-05-04 05:39:22 +01001210
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001212 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 help
1214 Find out whether you have a PCI motherboard. PCI is the name of a
1215 bus system, i.e. the way the CPU talks to the other stuff inside
1216 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1217 VESA. If you have PCI, say Y, otherwise N.
1218
Anton Vorontsov52882172010-04-19 13:20:49 +01001219config PCI_DOMAINS
1220 bool
1221 depends on PCI
1222
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001223config PCI_NANOENGINE
1224 bool "BSE nanoEngine PCI support"
1225 depends on SA1100_NANOENGINE
1226 help
1227 Enable PCI on the BSE nanoEngine board.
1228
Matthew Wilcox36e23592007-07-10 10:54:40 -06001229config PCI_SYSCALL
1230 def_bool PCI
1231
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232# Select the host bridge type
1233config PCI_HOST_VIA82C505
1234 bool
1235 depends on PCI && ARCH_SHARK
1236 default y
1237
Mike Rapoporta0113a92007-11-25 08:55:34 +01001238config PCI_HOST_ITE8152
1239 bool
1240 depends on PCI && MACH_ARMCORE
1241 default y
1242 select DMABOUNCE
1243
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244source "drivers/pci/Kconfig"
1245
1246source "drivers/pcmcia/Kconfig"
1247
1248endmenu
1249
1250menu "Kernel Features"
1251
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001252source "kernel/time/Kconfig"
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254config SMP
1255 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001256 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001257 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001258 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001259 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1260 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001261 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001262 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001263 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 help
1265 This enables support for systems with more than one CPU. If you have
1266 a system with only one CPU, like most personal computers, say N. If
1267 you have a system with more than one CPU, say Y.
1268
1269 If you say N here, the kernel will run on single and multiprocessor
1270 machines, but will use only one CPU of a multiprocessor machine. If
1271 you say Y here, the kernel will run on many, but not all, single
1272 processor machines. On a single processor machine, the kernel will
1273 run faster if you say N here.
1274
Adrian Bunk03502fa2008-02-03 15:50:21 +02001275 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001277 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278
1279 If you don't know what to do here, say N.
1280
Russell Kingf00ec482010-09-04 10:47:48 +01001281config SMP_ON_UP
1282 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1283 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001284 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001285 default y
1286 help
1287 SMP kernels contain instructions which fail on non-SMP processors.
1288 Enabling this option allows the kernel to modify itself to make
1289 these instructions safe. Disabling it allows about 1K of space
1290 savings.
1291
1292 If you don't know what to do here, say Y.
1293
Russell Kinga8cbcd92009-05-16 11:51:14 +01001294config HAVE_ARM_SCU
1295 bool
1296 depends on SMP
1297 help
1298 This option enables support for the ARM system coherency unit
1299
Russell Kingf32f4ce2009-05-16 12:14:21 +01001300config HAVE_ARM_TWD
1301 bool
1302 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001303 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001304 help
1305 This options enables support for the ARM timer and watchdog unit
1306
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001307choice
1308 prompt "Memory split"
1309 default VMSPLIT_3G
1310 help
1311 Select the desired split between kernel and user memory.
1312
1313 If you are not absolutely sure what you are doing, leave this
1314 option alone!
1315
1316 config VMSPLIT_3G
1317 bool "3G/1G user/kernel split"
1318 config VMSPLIT_2G
1319 bool "2G/2G user/kernel split"
1320 config VMSPLIT_1G
1321 bool "1G/3G user/kernel split"
1322endchoice
1323
1324config PAGE_OFFSET
1325 hex
1326 default 0x40000000 if VMSPLIT_1G
1327 default 0x80000000 if VMSPLIT_2G
1328 default 0xC0000000
1329
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330config NR_CPUS
1331 int "Maximum number of CPUs (2-32)"
1332 range 2 32
1333 depends on SMP
1334 default "4"
1335
Russell Kinga054a812005-11-02 22:24:33 +00001336config HOTPLUG_CPU
1337 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1338 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001339 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001340 help
1341 Say Y here to experiment with turning CPUs off and on. CPUs
1342 can be controlled through /sys/devices/system/cpu.
1343
Russell King37ee16a2005-11-08 19:08:05 +00001344config LOCAL_TIMERS
1345 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001346 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001347 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001348 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001349 help
1350 Enable support for local timers on SMP platforms, rather then the
1351 legacy IPI broadcast method. Local timers allows the system
1352 accounting to be spread across the timer interval, preventing a
1353 "thundering herd" at every timer tick.
1354
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001355source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
Russell Kingf8065812006-03-02 22:41:59 +00001357config HZ
1358 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001359 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001360 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001361 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001362 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001363 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001364 default 100
1365
Catalin Marinas16c79652009-07-24 12:33:02 +01001366config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001367 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001368 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001369 select AEABI
1370 select ARM_ASM_UNIFIED
1371 help
1372 By enabling this option, the kernel will be compiled in
1373 Thumb-2 mode. A compiler/assembler that understand the unified
1374 ARM-Thumb syntax is needed.
1375
1376 If unsure, say N.
1377
Catalin Marinas0becb082009-07-24 12:32:53 +01001378config ARM_ASM_UNIFIED
1379 bool
1380
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001381config AEABI
1382 bool "Use the ARM EABI to compile the kernel"
1383 help
1384 This option allows for the kernel to be compiled using the latest
1385 ARM ABI (aka EABI). This is only useful if you are using a user
1386 space environment that is also compiled with EABI.
1387
1388 Since there are major incompatibilities between the legacy ABI and
1389 EABI, especially with regard to structure member alignment, this
1390 option also changes the kernel syscall calling convention to
1391 disambiguate both ABIs and allow for backward compatibility support
1392 (selected with CONFIG_OABI_COMPAT).
1393
1394 To use this you need GCC version 4.0.0 or later.
1395
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001396config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001397 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001398 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001399 default y
1400 help
1401 This option preserves the old syscall interface along with the
1402 new (ARM EABI) one. It also provides a compatibility layer to
1403 intercept syscalls that have structure arguments which layout
1404 in memory differs between the legacy ABI and the new ARM EABI
1405 (only for non "thumb" binaries). This option adds a tiny
1406 overhead to all syscalls and produces a slightly larger kernel.
1407 If you know you'll be using only pure EABI user space then you
1408 can say N here. If this option is not selected and you attempt
1409 to execute a legacy ABI binary then the result will be
1410 UNPREDICTABLE (in fact it can be predicted that it won't work
1411 at all). If in doubt say Y.
1412
Mel Gormaneb335752009-05-13 17:34:48 +01001413config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001414 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001415
Russell King05944d72006-11-30 20:43:51 +00001416config ARCH_SPARSEMEM_ENABLE
1417 bool
1418
Russell King07a2f732008-10-01 21:39:58 +01001419config ARCH_SPARSEMEM_DEFAULT
1420 def_bool ARCH_SPARSEMEM_ENABLE
1421
Russell King05944d72006-11-30 20:43:51 +00001422config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001423 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001424
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001425config HIGHMEM
1426 bool "High Memory Support (EXPERIMENTAL)"
1427 depends on MMU && EXPERIMENTAL
1428 help
1429 The address space of ARM processors is only 4 Gigabytes large
1430 and it has to accommodate user address space, kernel address
1431 space as well as some memory mapped IO. That means that, if you
1432 have a large amount of physical memory and/or IO, not all of the
1433 memory can be "permanently mapped" by the kernel. The physical
1434 memory that is not permanently mapped is called "high memory".
1435
1436 Depending on the selected kernel/user memory split, minimum
1437 vmalloc space and actual amount of RAM, you may not need this
1438 option which should result in a slightly faster kernel.
1439
1440 If unsure, say n.
1441
Russell King65cec8e2009-08-17 20:02:06 +01001442config HIGHPTE
1443 bool "Allocate 2nd-level pagetables from highmem"
1444 depends on HIGHMEM
1445 depends on !OUTER_CACHE
1446
Jamie Iles1b8873a2010-02-02 20:25:44 +01001447config HW_PERF_EVENTS
1448 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001449 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001450 default y
1451 help
1452 Enable hardware performance counter support for perf events. If
1453 disabled, perf events will use software events only.
1454
Dave Hansen3f22ab22005-06-23 00:07:43 -07001455source "mm/Kconfig"
1456
Magnus Dammc1b2d972010-07-05 10:00:11 +01001457config FORCE_MAX_ZONEORDER
1458 int "Maximum zone order" if ARCH_SHMOBILE
1459 range 11 64 if ARCH_SHMOBILE
1460 default "9" if SA1111
1461 default "11"
1462 help
1463 The kernel memory allocator divides physically contiguous memory
1464 blocks into "zones", where each zone is a power of two number of
1465 pages. This option selects the largest power of two that the kernel
1466 keeps in the memory allocator. If you need to allocate very large
1467 blocks of physically contiguous memory, then you may need to
1468 increase this value.
1469
1470 This config option is actually maximum order plus one. For example,
1471 a value of 11 means that the largest free memory block is 2^10 pages.
1472
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473config LEDS
1474 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001475 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001476 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1478 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001479 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001480 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001481 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482 help
1483 If you say Y here, the LEDs on your machine will be used
1484 to provide useful information about your current system status.
1485
1486 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1487 be able to select which LEDs are active using the options below. If
1488 you are compiling a kernel for the EBSA-110 or the LART however, the
1489 red LED will simply flash regularly to indicate that the system is
1490 still functional. It is safe to say Y here if you have a CATS
1491 system, but the driver will do nothing.
1492
1493config LEDS_TIMER
1494 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001495 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1496 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001498 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499 default y if ARCH_EBSA110
1500 help
1501 If you say Y here, one of the system LEDs (the green one on the
1502 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1503 will flash regularly to indicate that the system is still
1504 operational. This is mainly useful to kernel hackers who are
1505 debugging unstable kernels.
1506
1507 The LART uses the same LED for both Timer LED and CPU usage LED
1508 functions. You may choose to use both, but the Timer LED function
1509 will overrule the CPU usage LED.
1510
1511config LEDS_CPU
1512 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001513 !ARCH_OMAP) \
1514 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1515 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001516 depends on LEDS
1517 help
1518 If you say Y here, the red LED will be used to give a good real
1519 time indication of CPU usage, by lighting whenever the idle task
1520 is not currently executing.
1521
1522 The LART uses the same LED for both Timer LED and CPU usage LED
1523 functions. You may choose to use both, but the Timer LED function
1524 will overrule the CPU usage LED.
1525
1526config ALIGNMENT_TRAP
1527 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001528 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001530 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001532 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1534 address divisible by 4. On 32-bit ARM processors, these non-aligned
1535 fetch/store instructions will be emulated in software if you say
1536 here, which has a severe performance impact. This is necessary for
1537 correct operation of some network protocols. With an IP-only
1538 configuration it is safe to say N, otherwise say Y.
1539
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001540config UACCESS_WITH_MEMCPY
1541 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1542 depends on MMU && EXPERIMENTAL
1543 default y if CPU_FEROCEON
1544 help
1545 Implement faster copy_to_user and clear_user methods for CPU
1546 cores where a 8-word STM instruction give significantly higher
1547 memory write throughput than a sequence of individual 32bit stores.
1548
1549 A possible side effect is a slight increase in scheduling latency
1550 between threads sharing the same address space if they invoke
1551 such copy operations with large buffers.
1552
1553 However, if the CPU data cache is using a write-allocate mode,
1554 this option is unlikely to provide any performance gain.
1555
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001556config SECCOMP
1557 bool
1558 prompt "Enable seccomp to safely compute untrusted bytecode"
1559 ---help---
1560 This kernel feature is useful for number crunching applications
1561 that may need to compute untrusted bytecode during their
1562 execution. By using pipes or other transports made available to
1563 the process as file descriptors supporting the read/write
1564 syscalls, it's possible to isolate those applications in
1565 their own address space using seccomp. Once seccomp is
1566 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1567 and the task is only allowed to execute a few safe syscalls
1568 defined by each seccomp mode.
1569
Nicolas Pitrec743f382010-05-24 23:55:42 -04001570config CC_STACKPROTECTOR
1571 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001572 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001573 help
1574 This option turns on the -fstack-protector GCC feature. This
1575 feature puts, at the beginning of functions, a canary value on
1576 the stack just before the return address, and validates
1577 the value just before actually returning. Stack based buffer
1578 overflows (that need to overwrite this return address) now also
1579 overwrite the canary, which gets detected and the attack is then
1580 neutralized via a kernel panic.
1581 This feature requires gcc version 4.2 or above.
1582
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001583config DEPRECATED_PARAM_STRUCT
1584 bool "Provide old way to pass kernel parameters"
1585 help
1586 This was deprecated in 2001 and announced to live on for 5 years.
1587 Some old boot loaders still use this way.
1588
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589endmenu
1590
1591menu "Boot options"
1592
1593# Compressed boot loader in ROM. Yes, we really want to ask about
1594# TEXT and BSS so we preserve their values in the config files.
1595config ZBOOT_ROM_TEXT
1596 hex "Compressed ROM boot loader base address"
1597 default "0"
1598 help
1599 The physical address at which the ROM-able zImage is to be
1600 placed in the target. Platforms which normally make use of
1601 ROM-able zImage formats normally set this to a suitable
1602 value in their defconfig file.
1603
1604 If ZBOOT_ROM is not enabled, this has no effect.
1605
1606config ZBOOT_ROM_BSS
1607 hex "Compressed ROM boot loader BSS address"
1608 default "0"
1609 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001610 The base address of an area of read/write memory in the target
1611 for the ROM-able zImage which must be available while the
1612 decompressor is running. It must be large enough to hold the
1613 entire decompressed kernel plus an additional 128 KiB.
1614 Platforms which normally make use of ROM-able zImage formats
1615 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616
1617 If ZBOOT_ROM is not enabled, this has no effect.
1618
1619config ZBOOT_ROM
1620 bool "Compressed boot loader in ROM/flash"
1621 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1622 help
1623 Say Y here if you intend to execute your compressed kernel image
1624 (zImage) directly from ROM or flash. If unsure, say N.
1625
1626config CMDLINE
1627 string "Default kernel command string"
1628 default ""
1629 help
1630 On some architectures (EBSA110 and CATS), there is currently no way
1631 for the boot loader to pass arguments to the kernel. For these
1632 architectures, you should supply some command-line options at build
1633 time by entering them here. As a minimum, you should specify the
1634 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1635
Alexander Holler92d20402010-02-16 19:04:53 +01001636config CMDLINE_FORCE
1637 bool "Always use the default kernel command string"
1638 depends on CMDLINE != ""
1639 help
1640 Always use the default kernel command string, even if the boot
1641 loader passes other arguments to the kernel.
1642 This is useful if you cannot or don't want to change the
1643 command-line options your boot loader passes to the kernel.
1644
1645 If unsure, say N.
1646
Linus Torvalds1da177e2005-04-16 15:20:36 -07001647config XIP_KERNEL
1648 bool "Kernel Execute-In-Place from ROM"
1649 depends on !ZBOOT_ROM
1650 help
1651 Execute-In-Place allows the kernel to run from non-volatile storage
1652 directly addressable by the CPU, such as NOR flash. This saves RAM
1653 space since the text section of the kernel is not loaded from flash
1654 to RAM. Read-write sections, such as the data section and stack,
1655 are still copied to RAM. The XIP kernel is not compressed since
1656 it has to run directly from flash, so it will take more space to
1657 store it. The flash address used to link the kernel object files,
1658 and for storing it, is configuration dependent. Therefore, if you
1659 say Y here, you must know the proper physical address where to
1660 store the kernel image depending on your own flash memory usage.
1661
1662 Also note that the make target becomes "make xipImage" rather than
1663 "make zImage" or "make Image". The final kernel binary to put in
1664 ROM memory will be arch/arm/boot/xipImage.
1665
1666 If unsure, say N.
1667
1668config XIP_PHYS_ADDR
1669 hex "XIP Kernel Physical Location"
1670 depends on XIP_KERNEL
1671 default "0x00080000"
1672 help
1673 This is the physical address in your flash memory the kernel will
1674 be linked for and stored to. This address is dependent on your
1675 own flash usage.
1676
Richard Purdiec587e4a2007-02-06 21:29:00 +01001677config KEXEC
1678 bool "Kexec system call (EXPERIMENTAL)"
1679 depends on EXPERIMENTAL
1680 help
1681 kexec is a system call that implements the ability to shutdown your
1682 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001683 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001684 you can start any kernel with it, not just Linux.
1685
1686 It is an ongoing process to be certain the hardware in a machine
1687 is properly shutdown, so do not be surprised if this code does not
1688 initially work for you. It may help to enable device hotplugging
1689 support.
1690
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001691config ATAGS_PROC
1692 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001693 depends on KEXEC
1694 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001695 help
1696 Should the atags used to boot the kernel be exported in an "atags"
1697 file in procfs. Useful with kexec.
1698
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001699config CRASH_DUMP
1700 bool "Build kdump crash kernel (EXPERIMENTAL)"
1701 depends on EXPERIMENTAL
1702 help
1703 Generate crash dump after being started by kexec. This should
1704 be normally only set in special crash dump kernels which are
1705 loaded in the main kernel with kexec-tools into a specially
1706 reserved region and then later executed after a crash by
1707 kdump/kexec. The crash dump kernel must be compiled to a
1708 memory address not used by the main kernel
1709
1710 For more details see Documentation/kdump/kdump.txt
1711
Eric Miaoe69edc792010-07-05 15:56:50 +02001712config AUTO_ZRELADDR
1713 bool "Auto calculation of the decompressed kernel image address"
1714 depends on !ZBOOT_ROM && !ARCH_U300
1715 help
1716 ZRELADDR is the physical address where the decompressed kernel
1717 image will be placed. If AUTO_ZRELADDR is selected, the address
1718 will be determined at run-time by masking the current IP with
1719 0xf8000000. This assumes the zImage being placed in the first 128MB
1720 from start of memory.
1721
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722endmenu
1723
Russell Kingac9d7ef2008-08-18 17:26:00 +01001724menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725
Ben Dooks89c52ed2009-07-30 23:23:24 +01001726if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727
1728source "drivers/cpufreq/Kconfig"
1729
Yong Shen64f102b2010-10-21 21:18:59 +08001730config CPU_FREQ_IMX
1731 tristate "CPUfreq driver for i.MX CPUs"
1732 depends on ARCH_MXC && CPU_FREQ
1733 help
1734 This enables the CPUfreq driver for i.MX CPUs.
1735
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736config CPU_FREQ_SA1100
1737 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738
1739config CPU_FREQ_SA1110
1740 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741
1742config CPU_FREQ_INTEGRATOR
1743 tristate "CPUfreq driver for ARM Integrator CPUs"
1744 depends on ARCH_INTEGRATOR && CPU_FREQ
1745 default y
1746 help
1747 This enables the CPUfreq driver for ARM Integrator CPUs.
1748
1749 For details, take a look at <file:Documentation/cpu-freq>.
1750
1751 If in doubt, say Y.
1752
Russell King9e2697f2007-12-14 13:30:14 +00001753config CPU_FREQ_PXA
1754 bool
1755 depends on CPU_FREQ && ARCH_PXA && PXA25x
1756 default y
1757 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1758
Mark Brownb3748dd2009-06-15 11:23:20 +01001759config CPU_FREQ_S3C64XX
1760 bool "CPUfreq support for Samsung S3C64XX CPUs"
1761 depends on CPU_FREQ && CPU_S3C6410
1762
Ben Dooks9d56c022009-07-30 23:23:25 +01001763config CPU_FREQ_S3C
1764 bool
1765 help
1766 Internal configuration node for common cpufreq on Samsung SoC
1767
1768config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001769 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001770 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1771 select CPU_FREQ_S3C
1772 help
1773 This enables the CPUfreq driver for the Samsung S3C24XX family
1774 of CPUs.
1775
1776 For details, take a look at <file:Documentation/cpu-freq>.
1777
1778 If in doubt, say N.
1779
1780config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001781 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001782 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1783 help
1784 Compile in support for changing the PLL frequency from the
1785 S3C24XX series CPUfreq driver. The PLL takes time to settle
1786 after a frequency change, so by default it is not enabled.
1787
1788 This also means that the PLL tables for the selected CPU(s) will
1789 be built which may increase the size of the kernel image.
1790
1791config CPU_FREQ_S3C24XX_DEBUG
1792 bool "Debug CPUfreq Samsung driver core"
1793 depends on CPU_FREQ_S3C24XX
1794 help
1795 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1796
1797config CPU_FREQ_S3C24XX_IODEBUG
1798 bool "Debug CPUfreq Samsung driver IO timing"
1799 depends on CPU_FREQ_S3C24XX
1800 help
1801 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1802
Ben Dookse6d197a2009-07-30 23:23:42 +01001803config CPU_FREQ_S3C24XX_DEBUGFS
1804 bool "Export debugfs for CPUFreq"
1805 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1806 help
1807 Export status information via debugfs.
1808
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809endif
1810
Russell Kingac9d7ef2008-08-18 17:26:00 +01001811source "drivers/cpuidle/Kconfig"
1812
1813endmenu
1814
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815menu "Floating point emulation"
1816
1817comment "At least one emulation must be selected"
1818
1819config FPE_NWFPE
1820 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001821 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 ---help---
1823 Say Y to include the NWFPE floating point emulator in the kernel.
1824 This is necessary to run most binaries. Linux does not currently
1825 support floating point hardware so you need to say Y here even if
1826 your machine has an FPA or floating point co-processor podule.
1827
1828 You may say N here if you are going to load the Acorn FPEmulator
1829 early in the bootup.
1830
1831config FPE_NWFPE_XP
1832 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001833 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 help
1835 Say Y to include 80-bit support in the kernel floating-point
1836 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1837 Note that gcc does not generate 80-bit operations by default,
1838 so in most cases this option only enlarges the size of the
1839 floating point emulator without any good reason.
1840
1841 You almost surely want to say N here.
1842
1843config FPE_FASTFPE
1844 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001845 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001846 ---help---
1847 Say Y here to include the FAST floating point emulator in the kernel.
1848 This is an experimental much faster emulator which now also has full
1849 precision for the mantissa. It does not support any exceptions.
1850 It is very simple, and approximately 3-6 times faster than NWFPE.
1851
1852 It should be sufficient for most programs. It may be not suitable
1853 for scientific calculations, but you have to check this for yourself.
1854 If you do not feel you need a faster FP emulation you should better
1855 choose NWFPE.
1856
1857config VFP
1858 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001859 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001860 help
1861 Say Y to include VFP support code in the kernel. This is needed
1862 if your hardware includes a VFP unit.
1863
1864 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1865 release notes and additional status information.
1866
1867 Say N if your target does not have VFP hardware.
1868
Catalin Marinas25ebee02007-09-25 15:22:24 +01001869config VFPv3
1870 bool
1871 depends on VFP
1872 default y if CPU_V7
1873
Catalin Marinasb5872db2008-01-10 19:16:17 +01001874config NEON
1875 bool "Advanced SIMD (NEON) Extension support"
1876 depends on VFPv3 && CPU_V7
1877 help
1878 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1879 Extension.
1880
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881endmenu
1882
1883menu "Userspace binary formats"
1884
1885source "fs/Kconfig.binfmt"
1886
1887config ARTHUR
1888 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001889 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890 help
1891 Say Y here to include the kernel code necessary if you want to run
1892 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1893 experimental; if this sounds frightening, say N and sleep in peace.
1894 You can also say M here to compile this support as a module (which
1895 will be called arthur).
1896
1897endmenu
1898
1899menu "Power management options"
1900
Russell Kingeceab4a2005-11-15 11:31:41 +00001901source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902
Johannes Bergf4cb5702007-12-08 02:14:00 +01001903config ARCH_SUSPEND_POSSIBLE
1904 def_bool y
1905
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906endmenu
1907
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001908source "net/Kconfig"
1909
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001910source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
1912source "fs/Kconfig"
1913
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914source "arch/arm/Kconfig.debug"
1915
1916source "security/Kconfig"
1917
1918source "crypto/Kconfig"
1919
1920source "lib/Kconfig"