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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 Kinge3887712010-01-14 13:30:16 +0000244 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100245 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 help
247 This enables support for ARM Ltd RealView boards.
248
249config ARCH_VERSATILE
250 bool "ARM Ltd. Versatile family"
251 select ARM_AMBA
252 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100253 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000254 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000255 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100256 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100257 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000258 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000259 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000260 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 This enables support for ARM Ltd Versatile board.
263
Russell Kingceade892010-02-11 21:44:53 +0000264config ARCH_VEXPRESS
265 bool "ARM Ltd. Versatile Express family"
266 select ARCH_WANT_OPTIONAL_GPIOLIB
267 select ARM_AMBA
268 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100269 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000270 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000271 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000272 select HAVE_SCHED_CLOCK
Nick Bowler95c34f82011-01-21 15:51:06 +0100273 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000274 select ICST
275 select PLAT_VERSATILE
276 help
277 This enables support for the ARM Ltd Versatile Express boards.
278
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100279config ARCH_AT91
280 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100281 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700282 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100283 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100284 This enables support for systems based on the Atmel AT91RM9200,
285 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286
Russell Kingccf50e22010-03-15 19:03:06 +0000287config ARCH_BCMRING
288 bool "Broadcom BCMRING"
289 depends on MMU
290 select CPU_V6
291 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100292 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000293 select GENERIC_CLOCKEVENTS
294 select ARCH_WANT_OPTIONAL_GPIOLIB
295 help
296 Support for Broadcom's BCMRing platform.
297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000300 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000301 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000302 help
303 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300305config ARCH_CNS3XXX
306 bool "Cavium Networks CNS3XXX family"
307 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300308 select GENERIC_CLOCKEVENTS
309 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100310 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400311 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300312 help
313 Support for Cavium Networks CNS3XXX platform.
314
Russell King788c9702009-04-26 14:21:59 +0100315config ARCH_GEMINI
316 bool "Cortina Systems Gemini"
317 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100318 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000319 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100320 help
321 Support for the Cortina Systems Gemini family SoCs
322
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323config ARCH_EBSA110
324 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000325 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100326 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000327 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000328 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 help
330 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000331 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 Ethernet interface, two PCMCIA sockets, two serial ports and a
333 parallel port.
334
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000335config ARCH_EP93XX
336 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000337 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000338 select ARM_AMBA
339 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100340 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700341 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100342 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000343 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000344 help
345 This enables support for the Cirrus EP93xx series of CPUs.
346
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347config ARCH_FOOTBRIDGE
348 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000349 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000351 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000352 help
353 Support for systems based on the DC21285 companion chip
354 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
Russell King788c9702009-04-26 14:21:59 +0100356config ARCH_MXC
357 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100358 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100359 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100360 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100361 help
362 Support for Freescale MXC/iMX-based family of processors
363
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800364config ARCH_MXS
365 bool "Freescale MXS-based"
366 select GENERIC_CLOCKEVENTS
367 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100368 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800369 help
370 Support for Freescale MXS-based family of processors
371
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100372config ARCH_STMP3XXX
373 bool "Freescale STMP3xxx"
374 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100375 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100376 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100377 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100378 select USB_ARCH_HAS_EHCI
379 help
380 Support for systems based on the Freescale 3xxx CPUs.
381
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100382config ARCH_NETX
383 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000384 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100385 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100386 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000387 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100388 This enables support for systems based on the Hilscher NetX Soc
389
390config ARCH_H720X
391 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000392 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100393 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000394 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100395 help
396 This enables support for systems based on the Hynix HMS720x
397
Russell King3b938be2007-05-12 11:25:44 +0100398config ARCH_IOP13XX
399 bool "IOP13xx-based"
400 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100402 select PLAT_IOP
403 select PCI
404 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100405 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100406 help
407 Support for Intel's IOP13XX (XScale) family of processors.
408
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100409config ARCH_IOP32X
410 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100413 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100414 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100415 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000416 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100417 Support for Intel's 80219 and IOP32X (XScale) family of
418 processors.
419
420config ARCH_IOP33X
421 bool "IOP33x-based"
422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100424 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100425 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100426 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100427 help
428 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Russell King3b938be2007-05-12 11:25:44 +0100430config ARCH_IXP23XX
431 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100432 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000433 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100434 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000435 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100436 help
Russell King3b938be2007-05-12 11:25:44 +0100437 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
439config ARCH_IXP2000
440 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100441 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000442 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100443 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000444 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000445 help
446 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Russell King3b938be2007-05-12 11:25:44 +0100448config ARCH_IXP4XX
449 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100450 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100452 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100453 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000454 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100455 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100456 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100457 help
Russell King3b938be2007-05-12 11:25:44 +0100458 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100459
Saeed Bisharaedabd382009-08-06 15:12:43 +0300460config ARCH_DOVE
461 bool "Marvell Dove"
462 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300463 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300464 select GENERIC_CLOCKEVENTS
465 select PLAT_ORION
466 help
467 Support for the Marvell Dove SoC 88AP510
468
Saeed Bishara651c74c2008-06-22 22:45:06 +0200469config ARCH_KIRKWOOD
470 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200472 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700473 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200474 select GENERIC_CLOCKEVENTS
475 select PLAT_ORION
476 help
477 Support for the following Marvell Kirkwood series SoCs:
478 88F6180, 88F6192 and 88F6281.
479
Russell King788c9702009-04-26 14:21:59 +0100480config ARCH_LOKI
481 bool "Marvell Loki (88RC8480)"
482 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100483 select GENERIC_CLOCKEVENTS
484 select PLAT_ORION
485 help
486 Support for the Marvell Loki (88RC8480) SoC.
487
Kevin Wells40805942010-07-27 08:49:04 -0700488config ARCH_LPC32XX
489 bool "NXP LPC32XX"
490 select CPU_ARM926T
491 select ARCH_REQUIRE_GPIOLIB
492 select HAVE_IDE
493 select ARM_AMBA
494 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100495 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700496 select GENERIC_TIME
497 select GENERIC_CLOCKEVENTS
498 help
499 Support for the NXP LPC32XX family of processors
500
Russell King788c9702009-04-26 14:21:59 +0100501config ARCH_MV78XX0
502 bool "Marvell MV78xx0"
503 select CPU_FEROCEON
504 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700505 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100506 select GENERIC_CLOCKEVENTS
507 select PLAT_ORION
508 help
509 Support for the following Marvell MV78xx0 series SoCs:
510 MV781x0, MV782x0.
511
512config ARCH_ORION5X
513 bool "Marvell Orion"
514 depends on MMU
515 select CPU_FEROCEON
516 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700517 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100518 select GENERIC_CLOCKEVENTS
519 select PLAT_ORION
520 help
521 Support for the following Marvell Orion 5x series SoCs:
522 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
523 Orion-2 (5281), Orion-1-90 (6183).
524
525config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500526 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100527 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100528 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100529 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100530 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000531 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100532 select TICK_ONESHOT
533 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400534 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100535 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500536 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100537
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100538config ARCH_KS8695
539 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000540 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100541 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000542 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100543 help
544 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
545 System-on-Chip devices.
546
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100547config ARCH_NS9XXX
548 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000549 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100550 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100551 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700552 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100553 help
554 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
555 System.
556
557 <http://www.digi.com/products/microprocessors/index.jsp>
558
Russell King788c9702009-04-26 14:21:59 +0100559config ARCH_W90X900
560 bool "Nuvoton W90X900 CPU"
561 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100562 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100563 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100564 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200565 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100566 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
567 At present, the w90x900 has been renamed nuc900, regarding
568 the ARM series product line, you can login the following
569 link address to know more.
570
571 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
572 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400573
wanzongshuna62e9032009-12-31 15:06:05 +0100574config ARCH_NUC93X
575 bool "Nuvoton NUC93X CPU"
576 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100577 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100578 help
579 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
580 low-power and high performance MPEG-4/JPEG multimedia controller chip.
581
Erik Gillingc5f80062010-01-21 16:53:02 -0800582config ARCH_TEGRA
583 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000584 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800585 select GENERIC_TIME
586 select GENERIC_CLOCKEVENTS
587 select GENERIC_GPIO
588 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000589 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800590 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700591 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800592 help
593 This enables support for NVIDIA Tegra based systems (Tegra APX,
594 Tegra 6xx and Tegra 2 series).
595
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100596config ARCH_PNX4008
597 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000598 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100599 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000600 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100601 help
602 This enables support for Philips PNX4008 mobile platform.
603
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700605 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100606 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500607 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100608 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100609 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700610 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100611 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000612 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000613 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800614 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800615 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000616 help
eric miao2c8086a2007-09-11 19:13:17 -0700617 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
Russell King788c9702009-04-26 14:21:59 +0100619config ARCH_MSM
620 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500621 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800622 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700623 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800624 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800625 Support for Qualcomm MSM/QSD based systems. This runs on the
626 apps processor of the MSM/QSD and depends on a shared memory
627 interface to the modem processor which runs the baseband
628 stack and controls some vital subsystems
629 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800630
Magnus Dammc793c1b2010-02-05 11:14:49 +0000631config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900632 bool "Renesas SH-Mobile / R-Mobile"
633 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900634 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900635 select GENERIC_CLOCKEVENTS
636 select NO_IOPORT
637 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000638 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000639 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900640 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000641
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642config ARCH_RPC
643 bool "RiscPC"
644 select ARCH_ACORN
645 select FIQ
646 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100647 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100648 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000649 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000650 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100651 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000652 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 help
654 On the Acorn Risc-PC, Linux can support the internal IDE disk and
655 CD-ROM interface, serial and parallel port, and the floppy drive.
656
657config ARCH_SA1100
658 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000659 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100660 select ISA
Russell King05944d72006-11-30 20:43:51 +0000661 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500662 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100663 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000664 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100665 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700666 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000667 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100668 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700669 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000670 help
671 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672
673config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900674 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800675 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100676 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700677 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000678 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900679 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 help
681 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
682 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000683 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684
Ben Dooks63b1f512010-04-30 16:32:26 +0900685 Note, the S3C2416 and the S3C2450 are so close that they even share
686 the same SoC ID code. This means that there is no seperate machine
687 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
688
Ben Dooksa08ab632008-10-21 14:06:39 +0100689config ARCH_S3C64XX
690 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000691 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900692 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900693 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100694 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900695 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000696 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100697 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900698 select ARCH_REQUIRE_GPIOLIB
699 select SAMSUNG_CLKSRC
700 select SAMSUNG_IRQ_VIC_TIMER
701 select SAMSUNG_IRQ_UART
702 select S3C_GPIO_TRACK
703 select S3C_GPIO_PULL_UPDOWN
704 select S3C_GPIO_CFG_S3C24XX
705 select S3C_GPIO_CFG_S3C64XX
706 select S3C_DEV_NAND
707 select USB_ARCH_HAS_OHCI
708 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900709 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900710 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100711 help
712 Samsung S3C64XX series based systems
713
Kukjin Kim49b7a492010-09-07 15:47:18 +0900714config ARCH_S5P64X0
715 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900716 select CPU_V6
717 select GENERIC_GPIO
718 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900719 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900720 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900721 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900722 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900723 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900724 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
725 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900726
Kukjin Kim550db7f2010-01-29 10:19:26 +0900727config ARCH_S5P6442
728 bool "Samsung S5P6442"
729 select CPU_V6
730 select GENERIC_GPIO
731 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900732 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900733 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900734 help
735 Samsung S5P6442 CPU based systems
736
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200737config ARCH_S5PC100
738 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900739 select GENERIC_GPIO
740 select HAVE_CLK
741 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100742 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900743 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900744 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900745 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900746 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900747 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200748 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900749
Kukjin Kim170f4e42010-02-24 16:40:44 +0900750config ARCH_S5PV210
751 bool "Samsung S5PV210/S5PC110"
752 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900753 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900754 select GENERIC_GPIO
755 select HAVE_CLK
756 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900757 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900758 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900759 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900760 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900761 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900762 help
763 Samsung S5PV210/S5PC110 series based systems
764
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900765config ARCH_S5PV310
766 bool "Samsung S5PV310/S5PC210"
767 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900768 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900769 select GENERIC_GPIO
770 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900771 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900772 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900773 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900774 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900775 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900776 help
777 Samsung S5PV310 series based systems
778
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779config ARCH_SHARK
780 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000781 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100782 select ISA
783 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100784 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100785 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000786 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000787 help
788 Support for the StrongARM based Digital DNARD machine, also known
789 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790
Hans J. Koch83ef3332010-09-17 18:13:56 +0200791config ARCH_TCC_926
792 bool "Telechips TCC ARM926-based systems"
793 select CPU_ARM926T
794 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100795 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200796 select GENERIC_CLOCKEVENTS
797 help
798 Support for Telechips TCC ARM926-based systems.
799
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800config ARCH_LH7A40X
801 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000802 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100803 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000804 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805 help
806 Say Y here for systems based on one of the Sharp LH7A40X
807 System on a Chip processors. These CPUs include an ARM922T
808 core with a wide array of integrated devices for
809 hand-held and low-power applications.
810
Linus Walleijd98aac72009-04-27 10:21:46 +0100811config ARCH_U300
812 bool "ST-Ericsson U300 Series"
813 depends on MMU
814 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000815 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100816 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100817 select ARM_AMBA
818 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100820 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100821 select GENERIC_GPIO
822 help
823 Support for ST-Ericsson U300 series mobile platforms.
824
Russell Kingccf50e22010-03-15 19:03:06 +0000825config ARCH_U8500
826 bool "ST-Ericsson U8500 Series"
827 select CPU_V7
828 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000829 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100830 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100831 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100832 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000833 help
834 Support for ST-Ericsson's Ux500 architecture
835
836config ARCH_NOMADIK
837 bool "STMicroelectronics Nomadik"
838 select ARM_AMBA
839 select ARM_VIC
840 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100841 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000842 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000843 select ARCH_REQUIRE_GPIOLIB
844 help
845 Support for the Nomadik platform by ST-Ericsson
846
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100847config ARCH_DAVINCI
848 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100849 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700850 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100851 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700852 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100853 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700854 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530855 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100856 help
857 Support for TI's DaVinci platform.
858
Russell King3b938be2007-05-12 11:25:44 +0100859config ARCH_OMAP
860 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700861 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700862 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100863 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700864 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000865 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800866 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100867 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200868 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100869
viresh kumarcee37e52010-04-01 12:31:05 +0100870config PLAT_SPEAR
871 bool "ST SPEAr"
872 select ARM_AMBA
873 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100874 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100875 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100876 select HAVE_CLK
877 help
878 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
879
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880endchoice
881
Russell Kingccf50e22010-03-15 19:03:06 +0000882#
883# This is sorted alphabetically by mach-* pathname. However, plat-*
884# Kconfigs may be included either alphabetically (according to the
885# plat- suffix) or along side the corresponding mach-* source.
886#
Russell King95b8f202010-01-14 11:43:54 +0000887source "arch/arm/mach-aaec2000/Kconfig"
888
889source "arch/arm/mach-at91/Kconfig"
890
891source "arch/arm/mach-bcmring/Kconfig"
892
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893source "arch/arm/mach-clps711x/Kconfig"
894
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300895source "arch/arm/mach-cns3xxx/Kconfig"
896
Russell King95b8f202010-01-14 11:43:54 +0000897source "arch/arm/mach-davinci/Kconfig"
898
899source "arch/arm/mach-dove/Kconfig"
900
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000901source "arch/arm/mach-ep93xx/Kconfig"
902
Linus Torvalds1da177e2005-04-16 15:20:36 -0700903source "arch/arm/mach-footbridge/Kconfig"
904
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200905source "arch/arm/mach-gemini/Kconfig"
906
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/mach-h720x/Kconfig"
908
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909source "arch/arm/mach-integrator/Kconfig"
910
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100911source "arch/arm/mach-iop32x/Kconfig"
912
913source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
Dan Williams285f5fa2006-12-07 02:59:39 +0100915source "arch/arm/mach-iop13xx/Kconfig"
916
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917source "arch/arm/mach-ixp4xx/Kconfig"
918
919source "arch/arm/mach-ixp2000/Kconfig"
920
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100921source "arch/arm/mach-ixp23xx/Kconfig"
922
Russell King95b8f202010-01-14 11:43:54 +0000923source "arch/arm/mach-kirkwood/Kconfig"
924
925source "arch/arm/mach-ks8695/Kconfig"
926
927source "arch/arm/mach-lh7a40x/Kconfig"
928
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200929source "arch/arm/mach-loki/Kconfig"
930
Kevin Wells40805942010-07-27 08:49:04 -0700931source "arch/arm/mach-lpc32xx/Kconfig"
932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/mach-msm/Kconfig"
934
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200935source "arch/arm/mach-mv78xx0/Kconfig"
936
Russell King95b8f202010-01-14 11:43:54 +0000937source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800939source "arch/arm/mach-mxs/Kconfig"
940
Russell King95b8f202010-01-14 11:43:54 +0000941source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-nomadik/Kconfig"
944source "arch/arm/plat-nomadik/Kconfig"
945
946source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
Russell Kingd91a89102010-02-04 18:13:17 +0000948source "arch/arm/mach-nuc93x/Kconfig"
949
Tony Lindgrend48af152005-07-10 19:58:17 +0100950source "arch/arm/plat-omap/Kconfig"
951
952source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953
Tony Lindgren1dbae812005-11-10 14:26:51 +0000954source "arch/arm/mach-omap2/Kconfig"
955
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400956source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-pxa/Kconfig"
959source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
Russell King95b8f202010-01-14 11:43:54 +0000961source "arch/arm/mach-mmp/Kconfig"
962
963source "arch/arm/mach-realview/Kconfig"
964
965source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300966
Ben Dookscf383672009-11-10 00:14:58 +0000967source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100968source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900969source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100970
viresh kumarcee37e52010-04-01 12:31:05 +0100971source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100972
Hans J. Koch83ef3332010-09-17 18:13:56 +0200973source "arch/arm/plat-tcc/Kconfig"
974
Ben Dooksa21765a2007-02-11 18:31:01 +0100975if ARCH_S3C2410
976source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100978source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900979source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100980source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100981source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
Ben Dooksa08ab632008-10-21 14:06:39 +0100984if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900985source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100986endif
987
Kukjin Kim49b7a492010-09-07 15:47:18 +0900988source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900989
Kukjin Kim550db7f2010-01-29 10:19:26 +0900990source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100991
Byungho Min5a7652f2009-06-23 21:39:42 +0900992source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900993
Kukjin Kim170f4e42010-02-24 16:40:44 +0900994source "arch/arm/mach-s5pv210/Kconfig"
995
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900996source "arch/arm/mach-s5pv310/Kconfig"
997
Russell King882d01f2010-03-02 23:40:15 +0000998source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999
Russell King882d01f2010-03-02 23:40:15 +00001000source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001001
Erik Gillingc5f80062010-01-21 16:53:02 -08001002source "arch/arm/mach-tegra/Kconfig"
1003
Russell King95b8f202010-01-14 11:43:54 +00001004source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007
1008source "arch/arm/mach-versatile/Kconfig"
1009
Russell Kingceade892010-02-11 21:44:53 +00001010source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001011source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001012
wanzongshun7ec80dd2008-12-03 03:55:38 +01001013source "arch/arm/mach-w90x900/Kconfig"
1014
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015# Definitions to make life easier
1016config ARCH_ACORN
1017 bool
1018
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001019config PLAT_IOP
1020 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001021 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001022 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001023
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001024config PLAT_ORION
1025 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001026 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001027
Eric Miaobd5ce432009-01-20 12:06:01 +08001028config PLAT_PXA
1029 bool
1030
Russell Kingf4b8b312010-01-14 12:48:06 +00001031config PLAT_VERSATILE
1032 bool
1033
Russell Kinge3887712010-01-14 13:30:16 +00001034config ARM_TIMER_SP804
1035 bool
1036
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037source arch/arm/mm/Kconfig
1038
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001039config IWMMXT
1040 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001041 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1042 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001043 help
1044 Enable support for iWMMXt context switching at run time if
1045 running on a CPU that supports it.
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1048config XSCALE_PMU
1049 bool
1050 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1051 default y
1052
Jamie Iles0f4f0672010-02-02 20:23:15 +01001053config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001054 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1055 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001056 default y
1057 bool
1058
eric miao52108642010-12-13 09:42:34 +01001059config MULTI_IRQ_HANDLER
1060 bool
1061 help
1062 Allow each machine to specify it's own IRQ handler at run time.
1063
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001064if !MMU
1065source "arch/arm/Kconfig-nommu"
1066endif
1067
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001068config ARM_ERRATA_411920
1069 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001070 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001071 help
1072 Invalidation of the Instruction Cache operation can
1073 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1074 It does not affect the MPCore. This option enables the ARM Ltd.
1075 recommended workaround.
1076
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001077config ARM_ERRATA_430973
1078 bool "ARM errata: Stale prediction on replaced interworking branch"
1079 depends on CPU_V7
1080 help
1081 This option enables the workaround for the 430973 Cortex-A8
1082 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1083 interworking branch is replaced with another code sequence at the
1084 same virtual address, whether due to self-modifying code or virtual
1085 to physical address re-mapping, Cortex-A8 does not recover from the
1086 stale interworking branch prediction. This results in Cortex-A8
1087 executing the new code sequence in the incorrect ARM or Thumb state.
1088 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1089 and also flushes the branch target cache at every context switch.
1090 Note that setting specific bits in the ACTLR register may not be
1091 available in non-secure mode.
1092
Catalin Marinas855c5512009-04-30 17:06:15 +01001093config ARM_ERRATA_458693
1094 bool "ARM errata: Processor deadlock when a false hazard is created"
1095 depends on CPU_V7
1096 help
1097 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1098 erratum. For very specific sequences of memory operations, it is
1099 possible for a hazard condition intended for a cache line to instead
1100 be incorrectly associated with a different cache line. This false
1101 hazard might then cause a processor deadlock. The workaround enables
1102 the L1 caching of the NEON accesses and disables the PLD instruction
1103 in the ACTLR register. Note that setting specific bits in the ACTLR
1104 register may not be available in non-secure mode.
1105
Catalin Marinas0516e462009-04-30 17:06:20 +01001106config ARM_ERRATA_460075
1107 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1108 depends on CPU_V7
1109 help
1110 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1111 erratum. Any asynchronous access to the L2 cache may encounter a
1112 situation in which recent store transactions to the L2 cache are lost
1113 and overwritten with stale memory contents from external memory. The
1114 workaround disables the write-allocate mode for the L2 cache via the
1115 ACTLR register. Note that setting specific bits in the ACTLR register
1116 may not be available in non-secure mode.
1117
Will Deacon9f050272010-09-14 09:51:43 +01001118config ARM_ERRATA_742230
1119 bool "ARM errata: DMB operation may be faulty"
1120 depends on CPU_V7 && SMP
1121 help
1122 This option enables the workaround for the 742230 Cortex-A9
1123 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1124 between two write operations may not ensure the correct visibility
1125 ordering of the two writes. This workaround sets a specific bit in
1126 the diagnostic register of the Cortex-A9 which causes the DMB
1127 instruction to behave as a DSB, ensuring the correct behaviour of
1128 the two writes.
1129
Will Deacona672e992010-09-14 09:53:02 +01001130config ARM_ERRATA_742231
1131 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1132 depends on CPU_V7 && SMP
1133 help
1134 This option enables the workaround for the 742231 Cortex-A9
1135 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1136 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1137 accessing some data located in the same cache line, may get corrupted
1138 data due to bad handling of the address hazard when the line gets
1139 replaced from one of the CPUs at the same time as another CPU is
1140 accessing it. This workaround sets specific bits in the diagnostic
1141 register of the Cortex-A9 which reduces the linefill issuing
1142 capabilities of the processor.
1143
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001144config PL310_ERRATA_588369
1145 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1146 depends on CACHE_L2X0 && ARCH_OMAP4
1147 help
1148 The PL310 L2 cache controller implements three types of Clean &
1149 Invalidate maintenance operations: by Physical Address
1150 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1151 They are architecturally defined to behave as the execution of a
1152 clean operation followed immediately by an invalidate operation,
1153 both performing to the same memory location. This functionality
1154 is not correctly implemented in PL310 as clean lines are not
1155 invalidated as a result of these operations. Note that this errata
1156 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001157
1158config ARM_ERRATA_720789
1159 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1160 depends on CPU_V7 && SMP
1161 help
1162 This option enables the workaround for the 720789 Cortex-A9 (prior to
1163 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1164 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1165 As a consequence of this erratum, some TLB entries which should be
1166 invalidated are not, resulting in an incoherency in the system page
1167 tables. The workaround changes the TLB flushing routines to invalidate
1168 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001169
1170config ARM_ERRATA_743622
1171 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1172 depends on CPU_V7
1173 help
1174 This option enables the workaround for the 743622 Cortex-A9
1175 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1176 optimisation in the Cortex-A9 Store Buffer may lead to data
1177 corruption. This workaround sets a specific bit in the diagnostic
1178 register of the Cortex-A9 which disables the Store Buffer
1179 optimisation, preventing the defect from occurring. This has no
1180 visible impact on the overall performance or power consumption of the
1181 processor.
1182
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183endmenu
1184
1185source "arch/arm/common/Kconfig"
1186
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187menu "Bus support"
1188
1189config ARM_AMBA
1190 bool
1191
1192config ISA
1193 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194 help
1195 Find out whether you have ISA slots on your motherboard. ISA is the
1196 name of a bus system, i.e. the way the CPU talks to the other stuff
1197 inside your box. Other bus systems are PCI, EISA, MicroChannel
1198 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1199 newer boards don't support it. If you have ISA, say Y, otherwise N.
1200
Russell King065909b2006-01-04 15:44:16 +00001201# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202config ISA_DMA
1203 bool
Russell King065909b2006-01-04 15:44:16 +00001204 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205
Russell King065909b2006-01-04 15:44:16 +00001206# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001207config ISA_DMA_API
1208 bool
Al Viro5cae8412005-05-04 05:39:22 +01001209
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001211 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212 help
1213 Find out whether you have a PCI motherboard. PCI is the name of a
1214 bus system, i.e. the way the CPU talks to the other stuff inside
1215 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1216 VESA. If you have PCI, say Y, otherwise N.
1217
Anton Vorontsov52882172010-04-19 13:20:49 +01001218config PCI_DOMAINS
1219 bool
1220 depends on PCI
1221
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001222config PCI_NANOENGINE
1223 bool "BSE nanoEngine PCI support"
1224 depends on SA1100_NANOENGINE
1225 help
1226 Enable PCI on the BSE nanoEngine board.
1227
Matthew Wilcox36e23592007-07-10 10:54:40 -06001228config PCI_SYSCALL
1229 def_bool PCI
1230
Linus Torvalds1da177e2005-04-16 15:20:36 -07001231# Select the host bridge type
1232config PCI_HOST_VIA82C505
1233 bool
1234 depends on PCI && ARCH_SHARK
1235 default y
1236
Mike Rapoporta0113a92007-11-25 08:55:34 +01001237config PCI_HOST_ITE8152
1238 bool
1239 depends on PCI && MACH_ARMCORE
1240 default y
1241 select DMABOUNCE
1242
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243source "drivers/pci/Kconfig"
1244
1245source "drivers/pcmcia/Kconfig"
1246
1247endmenu
1248
1249menu "Kernel Features"
1250
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001251source "kernel/time/Kconfig"
1252
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253config SMP
1254 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001255 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001256 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001257 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001258 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1259 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001260 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001261 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001262 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263 help
1264 This enables support for systems with more than one CPU. If you have
1265 a system with only one CPU, like most personal computers, say N. If
1266 you have a system with more than one CPU, say Y.
1267
1268 If you say N here, the kernel will run on single and multiprocessor
1269 machines, but will use only one CPU of a multiprocessor machine. If
1270 you say Y here, the kernel will run on many, but not all, single
1271 processor machines. On a single processor machine, the kernel will
1272 run faster if you say N here.
1273
Adrian Bunk03502fa2008-02-03 15:50:21 +02001274 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001276 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277
1278 If you don't know what to do here, say N.
1279
Russell Kingf00ec482010-09-04 10:47:48 +01001280config SMP_ON_UP
1281 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1282 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001283 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001284 default y
1285 help
1286 SMP kernels contain instructions which fail on non-SMP processors.
1287 Enabling this option allows the kernel to modify itself to make
1288 these instructions safe. Disabling it allows about 1K of space
1289 savings.
1290
1291 If you don't know what to do here, say Y.
1292
Russell Kinga8cbcd92009-05-16 11:51:14 +01001293config HAVE_ARM_SCU
1294 bool
1295 depends on SMP
1296 help
1297 This option enables support for the ARM system coherency unit
1298
Russell Kingf32f4ce2009-05-16 12:14:21 +01001299config HAVE_ARM_TWD
1300 bool
1301 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001302 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001303 help
1304 This options enables support for the ARM timer and watchdog unit
1305
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001306choice
1307 prompt "Memory split"
1308 default VMSPLIT_3G
1309 help
1310 Select the desired split between kernel and user memory.
1311
1312 If you are not absolutely sure what you are doing, leave this
1313 option alone!
1314
1315 config VMSPLIT_3G
1316 bool "3G/1G user/kernel split"
1317 config VMSPLIT_2G
1318 bool "2G/2G user/kernel split"
1319 config VMSPLIT_1G
1320 bool "1G/3G user/kernel split"
1321endchoice
1322
1323config PAGE_OFFSET
1324 hex
1325 default 0x40000000 if VMSPLIT_1G
1326 default 0x80000000 if VMSPLIT_2G
1327 default 0xC0000000
1328
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329config NR_CPUS
1330 int "Maximum number of CPUs (2-32)"
1331 range 2 32
1332 depends on SMP
1333 default "4"
1334
Russell Kinga054a812005-11-02 22:24:33 +00001335config HOTPLUG_CPU
1336 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1337 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001338 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001339 help
1340 Say Y here to experiment with turning CPUs off and on. CPUs
1341 can be controlled through /sys/devices/system/cpu.
1342
Russell King37ee16a2005-11-08 19:08:05 +00001343config LOCAL_TIMERS
1344 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001345 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001346 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001347 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001348 help
1349 Enable support for local timers on SMP platforms, rather then the
1350 legacy IPI broadcast method. Local timers allows the system
1351 accounting to be spread across the timer interval, preventing a
1352 "thundering herd" at every timer tick.
1353
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001354source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355
Russell Kingf8065812006-03-02 22:41:59 +00001356config HZ
1357 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001358 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001359 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001360 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001361 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001362 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001363 default 100
1364
Catalin Marinas16c79652009-07-24 12:33:02 +01001365config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001366 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001367 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001368 select AEABI
1369 select ARM_ASM_UNIFIED
1370 help
1371 By enabling this option, the kernel will be compiled in
1372 Thumb-2 mode. A compiler/assembler that understand the unified
1373 ARM-Thumb syntax is needed.
1374
1375 If unsure, say N.
1376
Catalin Marinas0becb082009-07-24 12:32:53 +01001377config ARM_ASM_UNIFIED
1378 bool
1379
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001380config AEABI
1381 bool "Use the ARM EABI to compile the kernel"
1382 help
1383 This option allows for the kernel to be compiled using the latest
1384 ARM ABI (aka EABI). This is only useful if you are using a user
1385 space environment that is also compiled with EABI.
1386
1387 Since there are major incompatibilities between the legacy ABI and
1388 EABI, especially with regard to structure member alignment, this
1389 option also changes the kernel syscall calling convention to
1390 disambiguate both ABIs and allow for backward compatibility support
1391 (selected with CONFIG_OABI_COMPAT).
1392
1393 To use this you need GCC version 4.0.0 or later.
1394
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001395config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001396 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001397 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001398 default y
1399 help
1400 This option preserves the old syscall interface along with the
1401 new (ARM EABI) one. It also provides a compatibility layer to
1402 intercept syscalls that have structure arguments which layout
1403 in memory differs between the legacy ABI and the new ARM EABI
1404 (only for non "thumb" binaries). This option adds a tiny
1405 overhead to all syscalls and produces a slightly larger kernel.
1406 If you know you'll be using only pure EABI user space then you
1407 can say N here. If this option is not selected and you attempt
1408 to execute a legacy ABI binary then the result will be
1409 UNPREDICTABLE (in fact it can be predicted that it won't work
1410 at all). If in doubt say Y.
1411
Mel Gormaneb335752009-05-13 17:34:48 +01001412config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001413 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001414
Russell King05944d72006-11-30 20:43:51 +00001415config ARCH_SPARSEMEM_ENABLE
1416 bool
1417
Russell King07a2f732008-10-01 21:39:58 +01001418config ARCH_SPARSEMEM_DEFAULT
1419 def_bool ARCH_SPARSEMEM_ENABLE
1420
Russell King05944d72006-11-30 20:43:51 +00001421config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001422 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001423
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001424config HIGHMEM
1425 bool "High Memory Support (EXPERIMENTAL)"
1426 depends on MMU && EXPERIMENTAL
1427 help
1428 The address space of ARM processors is only 4 Gigabytes large
1429 and it has to accommodate user address space, kernel address
1430 space as well as some memory mapped IO. That means that, if you
1431 have a large amount of physical memory and/or IO, not all of the
1432 memory can be "permanently mapped" by the kernel. The physical
1433 memory that is not permanently mapped is called "high memory".
1434
1435 Depending on the selected kernel/user memory split, minimum
1436 vmalloc space and actual amount of RAM, you may not need this
1437 option which should result in a slightly faster kernel.
1438
1439 If unsure, say n.
1440
Russell King65cec8e2009-08-17 20:02:06 +01001441config HIGHPTE
1442 bool "Allocate 2nd-level pagetables from highmem"
1443 depends on HIGHMEM
1444 depends on !OUTER_CACHE
1445
Jamie Iles1b8873a2010-02-02 20:25:44 +01001446config HW_PERF_EVENTS
1447 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001448 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001449 default y
1450 help
1451 Enable hardware performance counter support for perf events. If
1452 disabled, perf events will use software events only.
1453
Dave Hansen3f22ab22005-06-23 00:07:43 -07001454source "mm/Kconfig"
1455
Magnus Dammc1b2d972010-07-05 10:00:11 +01001456config FORCE_MAX_ZONEORDER
1457 int "Maximum zone order" if ARCH_SHMOBILE
1458 range 11 64 if ARCH_SHMOBILE
1459 default "9" if SA1111
1460 default "11"
1461 help
1462 The kernel memory allocator divides physically contiguous memory
1463 blocks into "zones", where each zone is a power of two number of
1464 pages. This option selects the largest power of two that the kernel
1465 keeps in the memory allocator. If you need to allocate very large
1466 blocks of physically contiguous memory, then you may need to
1467 increase this value.
1468
1469 This config option is actually maximum order plus one. For example,
1470 a value of 11 means that the largest free memory block is 2^10 pages.
1471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472config LEDS
1473 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001474 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001475 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1477 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001478 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001479 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001480 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481 help
1482 If you say Y here, the LEDs on your machine will be used
1483 to provide useful information about your current system status.
1484
1485 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1486 be able to select which LEDs are active using the options below. If
1487 you are compiling a kernel for the EBSA-110 or the LART however, the
1488 red LED will simply flash regularly to indicate that the system is
1489 still functional. It is safe to say Y here if you have a CATS
1490 system, but the driver will do nothing.
1491
1492config LEDS_TIMER
1493 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001494 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1495 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001497 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 default y if ARCH_EBSA110
1499 help
1500 If you say Y here, one of the system LEDs (the green one on the
1501 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1502 will flash regularly to indicate that the system is still
1503 operational. This is mainly useful to kernel hackers who are
1504 debugging unstable kernels.
1505
1506 The LART uses the same LED for both Timer LED and CPU usage LED
1507 functions. You may choose to use both, but the Timer LED function
1508 will overrule the CPU usage LED.
1509
1510config LEDS_CPU
1511 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001512 !ARCH_OMAP) \
1513 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1514 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515 depends on LEDS
1516 help
1517 If you say Y here, the red LED will be used to give a good real
1518 time indication of CPU usage, by lighting whenever the idle task
1519 is not currently executing.
1520
1521 The LART uses the same LED for both Timer LED and CPU usage LED
1522 functions. You may choose to use both, but the Timer LED function
1523 will overrule the CPU usage LED.
1524
1525config ALIGNMENT_TRAP
1526 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001527 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001529 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001531 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1533 address divisible by 4. On 32-bit ARM processors, these non-aligned
1534 fetch/store instructions will be emulated in software if you say
1535 here, which has a severe performance impact. This is necessary for
1536 correct operation of some network protocols. With an IP-only
1537 configuration it is safe to say N, otherwise say Y.
1538
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001539config UACCESS_WITH_MEMCPY
1540 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1541 depends on MMU && EXPERIMENTAL
1542 default y if CPU_FEROCEON
1543 help
1544 Implement faster copy_to_user and clear_user methods for CPU
1545 cores where a 8-word STM instruction give significantly higher
1546 memory write throughput than a sequence of individual 32bit stores.
1547
1548 A possible side effect is a slight increase in scheduling latency
1549 between threads sharing the same address space if they invoke
1550 such copy operations with large buffers.
1551
1552 However, if the CPU data cache is using a write-allocate mode,
1553 this option is unlikely to provide any performance gain.
1554
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001555config SECCOMP
1556 bool
1557 prompt "Enable seccomp to safely compute untrusted bytecode"
1558 ---help---
1559 This kernel feature is useful for number crunching applications
1560 that may need to compute untrusted bytecode during their
1561 execution. By using pipes or other transports made available to
1562 the process as file descriptors supporting the read/write
1563 syscalls, it's possible to isolate those applications in
1564 their own address space using seccomp. Once seccomp is
1565 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1566 and the task is only allowed to execute a few safe syscalls
1567 defined by each seccomp mode.
1568
Nicolas Pitrec743f382010-05-24 23:55:42 -04001569config CC_STACKPROTECTOR
1570 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001571 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001572 help
1573 This option turns on the -fstack-protector GCC feature. This
1574 feature puts, at the beginning of functions, a canary value on
1575 the stack just before the return address, and validates
1576 the value just before actually returning. Stack based buffer
1577 overflows (that need to overwrite this return address) now also
1578 overwrite the canary, which gets detected and the attack is then
1579 neutralized via a kernel panic.
1580 This feature requires gcc version 4.2 or above.
1581
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001582config DEPRECATED_PARAM_STRUCT
1583 bool "Provide old way to pass kernel parameters"
1584 help
1585 This was deprecated in 2001 and announced to live on for 5 years.
1586 Some old boot loaders still use this way.
1587
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588endmenu
1589
1590menu "Boot options"
1591
1592# Compressed boot loader in ROM. Yes, we really want to ask about
1593# TEXT and BSS so we preserve their values in the config files.
1594config ZBOOT_ROM_TEXT
1595 hex "Compressed ROM boot loader base address"
1596 default "0"
1597 help
1598 The physical address at which the ROM-able zImage is to be
1599 placed in the target. Platforms which normally make use of
1600 ROM-able zImage formats normally set this to a suitable
1601 value in their defconfig file.
1602
1603 If ZBOOT_ROM is not enabled, this has no effect.
1604
1605config ZBOOT_ROM_BSS
1606 hex "Compressed ROM boot loader BSS address"
1607 default "0"
1608 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001609 The base address of an area of read/write memory in the target
1610 for the ROM-able zImage which must be available while the
1611 decompressor is running. It must be large enough to hold the
1612 entire decompressed kernel plus an additional 128 KiB.
1613 Platforms which normally make use of ROM-able zImage formats
1614 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615
1616 If ZBOOT_ROM is not enabled, this has no effect.
1617
1618config ZBOOT_ROM
1619 bool "Compressed boot loader in ROM/flash"
1620 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1621 help
1622 Say Y here if you intend to execute your compressed kernel image
1623 (zImage) directly from ROM or flash. If unsure, say N.
1624
1625config CMDLINE
1626 string "Default kernel command string"
1627 default ""
1628 help
1629 On some architectures (EBSA110 and CATS), there is currently no way
1630 for the boot loader to pass arguments to the kernel. For these
1631 architectures, you should supply some command-line options at build
1632 time by entering them here. As a minimum, you should specify the
1633 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1634
Alexander Holler92d20402010-02-16 19:04:53 +01001635config CMDLINE_FORCE
1636 bool "Always use the default kernel command string"
1637 depends on CMDLINE != ""
1638 help
1639 Always use the default kernel command string, even if the boot
1640 loader passes other arguments to the kernel.
1641 This is useful if you cannot or don't want to change the
1642 command-line options your boot loader passes to the kernel.
1643
1644 If unsure, say N.
1645
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646config XIP_KERNEL
1647 bool "Kernel Execute-In-Place from ROM"
1648 depends on !ZBOOT_ROM
1649 help
1650 Execute-In-Place allows the kernel to run from non-volatile storage
1651 directly addressable by the CPU, such as NOR flash. This saves RAM
1652 space since the text section of the kernel is not loaded from flash
1653 to RAM. Read-write sections, such as the data section and stack,
1654 are still copied to RAM. The XIP kernel is not compressed since
1655 it has to run directly from flash, so it will take more space to
1656 store it. The flash address used to link the kernel object files,
1657 and for storing it, is configuration dependent. Therefore, if you
1658 say Y here, you must know the proper physical address where to
1659 store the kernel image depending on your own flash memory usage.
1660
1661 Also note that the make target becomes "make xipImage" rather than
1662 "make zImage" or "make Image". The final kernel binary to put in
1663 ROM memory will be arch/arm/boot/xipImage.
1664
1665 If unsure, say N.
1666
1667config XIP_PHYS_ADDR
1668 hex "XIP Kernel Physical Location"
1669 depends on XIP_KERNEL
1670 default "0x00080000"
1671 help
1672 This is the physical address in your flash memory the kernel will
1673 be linked for and stored to. This address is dependent on your
1674 own flash usage.
1675
Richard Purdiec587e4a2007-02-06 21:29:00 +01001676config KEXEC
1677 bool "Kexec system call (EXPERIMENTAL)"
1678 depends on EXPERIMENTAL
1679 help
1680 kexec is a system call that implements the ability to shutdown your
1681 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001682 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001683 you can start any kernel with it, not just Linux.
1684
1685 It is an ongoing process to be certain the hardware in a machine
1686 is properly shutdown, so do not be surprised if this code does not
1687 initially work for you. It may help to enable device hotplugging
1688 support.
1689
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001690config ATAGS_PROC
1691 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001692 depends on KEXEC
1693 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001694 help
1695 Should the atags used to boot the kernel be exported in an "atags"
1696 file in procfs. Useful with kexec.
1697
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001698config CRASH_DUMP
1699 bool "Build kdump crash kernel (EXPERIMENTAL)"
1700 depends on EXPERIMENTAL
1701 help
1702 Generate crash dump after being started by kexec. This should
1703 be normally only set in special crash dump kernels which are
1704 loaded in the main kernel with kexec-tools into a specially
1705 reserved region and then later executed after a crash by
1706 kdump/kexec. The crash dump kernel must be compiled to a
1707 memory address not used by the main kernel
1708
1709 For more details see Documentation/kdump/kdump.txt
1710
Eric Miaoe69edc792010-07-05 15:56:50 +02001711config AUTO_ZRELADDR
1712 bool "Auto calculation of the decompressed kernel image address"
1713 depends on !ZBOOT_ROM && !ARCH_U300
1714 help
1715 ZRELADDR is the physical address where the decompressed kernel
1716 image will be placed. If AUTO_ZRELADDR is selected, the address
1717 will be determined at run-time by masking the current IP with
1718 0xf8000000. This assumes the zImage being placed in the first 128MB
1719 from start of memory.
1720
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721endmenu
1722
Russell Kingac9d7ef2008-08-18 17:26:00 +01001723menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724
Ben Dooks89c52ed2009-07-30 23:23:24 +01001725if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726
1727source "drivers/cpufreq/Kconfig"
1728
Yong Shen64f102b2010-10-21 21:18:59 +08001729config CPU_FREQ_IMX
1730 tristate "CPUfreq driver for i.MX CPUs"
1731 depends on ARCH_MXC && CPU_FREQ
1732 help
1733 This enables the CPUfreq driver for i.MX CPUs.
1734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735config CPU_FREQ_SA1100
1736 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737
1738config CPU_FREQ_SA1110
1739 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740
1741config CPU_FREQ_INTEGRATOR
1742 tristate "CPUfreq driver for ARM Integrator CPUs"
1743 depends on ARCH_INTEGRATOR && CPU_FREQ
1744 default y
1745 help
1746 This enables the CPUfreq driver for ARM Integrator CPUs.
1747
1748 For details, take a look at <file:Documentation/cpu-freq>.
1749
1750 If in doubt, say Y.
1751
Russell King9e2697f2007-12-14 13:30:14 +00001752config CPU_FREQ_PXA
1753 bool
1754 depends on CPU_FREQ && ARCH_PXA && PXA25x
1755 default y
1756 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1757
Mark Brownb3748dd2009-06-15 11:23:20 +01001758config CPU_FREQ_S3C64XX
1759 bool "CPUfreq support for Samsung S3C64XX CPUs"
1760 depends on CPU_FREQ && CPU_S3C6410
1761
Ben Dooks9d56c022009-07-30 23:23:25 +01001762config CPU_FREQ_S3C
1763 bool
1764 help
1765 Internal configuration node for common cpufreq on Samsung SoC
1766
1767config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001768 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001769 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1770 select CPU_FREQ_S3C
1771 help
1772 This enables the CPUfreq driver for the Samsung S3C24XX family
1773 of CPUs.
1774
1775 For details, take a look at <file:Documentation/cpu-freq>.
1776
1777 If in doubt, say N.
1778
1779config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001780 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001781 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1782 help
1783 Compile in support for changing the PLL frequency from the
1784 S3C24XX series CPUfreq driver. The PLL takes time to settle
1785 after a frequency change, so by default it is not enabled.
1786
1787 This also means that the PLL tables for the selected CPU(s) will
1788 be built which may increase the size of the kernel image.
1789
1790config CPU_FREQ_S3C24XX_DEBUG
1791 bool "Debug CPUfreq Samsung driver core"
1792 depends on CPU_FREQ_S3C24XX
1793 help
1794 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1795
1796config CPU_FREQ_S3C24XX_IODEBUG
1797 bool "Debug CPUfreq Samsung driver IO timing"
1798 depends on CPU_FREQ_S3C24XX
1799 help
1800 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1801
Ben Dookse6d197a2009-07-30 23:23:42 +01001802config CPU_FREQ_S3C24XX_DEBUGFS
1803 bool "Export debugfs for CPUFreq"
1804 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1805 help
1806 Export status information via debugfs.
1807
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808endif
1809
Russell Kingac9d7ef2008-08-18 17:26:00 +01001810source "drivers/cpuidle/Kconfig"
1811
1812endmenu
1813
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814menu "Floating point emulation"
1815
1816comment "At least one emulation must be selected"
1817
1818config FPE_NWFPE
1819 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001820 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 ---help---
1822 Say Y to include the NWFPE floating point emulator in the kernel.
1823 This is necessary to run most binaries. Linux does not currently
1824 support floating point hardware so you need to say Y here even if
1825 your machine has an FPA or floating point co-processor podule.
1826
1827 You may say N here if you are going to load the Acorn FPEmulator
1828 early in the bootup.
1829
1830config FPE_NWFPE_XP
1831 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001832 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833 help
1834 Say Y to include 80-bit support in the kernel floating-point
1835 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1836 Note that gcc does not generate 80-bit operations by default,
1837 so in most cases this option only enlarges the size of the
1838 floating point emulator without any good reason.
1839
1840 You almost surely want to say N here.
1841
1842config FPE_FASTFPE
1843 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001844 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845 ---help---
1846 Say Y here to include the FAST floating point emulator in the kernel.
1847 This is an experimental much faster emulator which now also has full
1848 precision for the mantissa. It does not support any exceptions.
1849 It is very simple, and approximately 3-6 times faster than NWFPE.
1850
1851 It should be sufficient for most programs. It may be not suitable
1852 for scientific calculations, but you have to check this for yourself.
1853 If you do not feel you need a faster FP emulation you should better
1854 choose NWFPE.
1855
1856config VFP
1857 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001858 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859 help
1860 Say Y to include VFP support code in the kernel. This is needed
1861 if your hardware includes a VFP unit.
1862
1863 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1864 release notes and additional status information.
1865
1866 Say N if your target does not have VFP hardware.
1867
Catalin Marinas25ebee02007-09-25 15:22:24 +01001868config VFPv3
1869 bool
1870 depends on VFP
1871 default y if CPU_V7
1872
Catalin Marinasb5872db2008-01-10 19:16:17 +01001873config NEON
1874 bool "Advanced SIMD (NEON) Extension support"
1875 depends on VFPv3 && CPU_V7
1876 help
1877 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1878 Extension.
1879
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880endmenu
1881
1882menu "Userspace binary formats"
1883
1884source "fs/Kconfig.binfmt"
1885
1886config ARTHUR
1887 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001888 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001889 help
1890 Say Y here to include the kernel code necessary if you want to run
1891 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1892 experimental; if this sounds frightening, say N and sleep in peace.
1893 You can also say M here to compile this support as a module (which
1894 will be called arthur).
1895
1896endmenu
1897
1898menu "Power management options"
1899
Russell Kingeceab4a2005-11-15 11:31:41 +00001900source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901
Johannes Bergf4cb5702007-12-08 02:14:00 +01001902config ARCH_SUSPEND_POSSIBLE
1903 def_bool y
1904
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905endmenu
1906
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001907source "net/Kconfig"
1908
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001909source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910
1911source "fs/Kconfig"
1912
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913source "arch/arm/Kconfig.debug"
1914
1915source "security/Kconfig"
1916
1917source "crypto/Kconfig"
1918
1919source "lib/Kconfig"