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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
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !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
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || 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 Kinge3887712010-01-14 13:30:16 +0000259 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260 help
261 This enables support for ARM Ltd Versatile board.
262
Russell Kingceade892010-02-11 21:44:53 +0000263config ARCH_VEXPRESS
264 bool "ARM Ltd. Versatile Express family"
265 select ARCH_WANT_OPTIONAL_GPIOLIB
266 select ARM_AMBA
267 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100268 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000269 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000270 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000271 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000272 select ICST
273 select PLAT_VERSATILE
274 help
275 This enables support for the ARM Ltd Versatile Express boards.
276
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100277config ARCH_AT91
278 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100279 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700280 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100282 This enables support for systems based on the Atmel AT91RM9200,
283 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284
Russell Kingccf50e22010-03-15 19:03:06 +0000285config ARCH_BCMRING
286 bool "Broadcom BCMRING"
287 depends on MMU
288 select CPU_V6
289 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100290 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000291 select GENERIC_CLOCKEVENTS
292 select ARCH_WANT_OPTIONAL_GPIOLIB
293 help
294 Support for Broadcom's BCMRing platform.
295
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000298 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000299 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000300 help
301 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300303config ARCH_CNS3XXX
304 bool "Cavium Networks CNS3XXX family"
305 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300306 select GENERIC_CLOCKEVENTS
307 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100308 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400309 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300310 help
311 Support for Cavium Networks CNS3XXX platform.
312
Russell King788c9702009-04-26 14:21:59 +0100313config ARCH_GEMINI
314 bool "Cortina Systems Gemini"
315 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100316 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000317 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100318 help
319 Support for the Cortina Systems Gemini family SoCs
320
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321config ARCH_EBSA110
322 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000323 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100324 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000325 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000326 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 help
328 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000329 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 Ethernet interface, two PCMCIA sockets, two serial ports and a
331 parallel port.
332
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000333config ARCH_EP93XX
334 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000336 select ARM_AMBA
337 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100338 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700339 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100340 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000341 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000342 help
343 This enables support for the Cirrus EP93xx series of CPUs.
344
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345config ARCH_FOOTBRIDGE
346 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000347 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000349 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000350 help
351 Support for systems based on the DC21285 companion chip
352 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
Russell King788c9702009-04-26 14:21:59 +0100354config ARCH_MXC
355 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100356 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100357 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100358 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100359 help
360 Support for Freescale MXC/iMX-based family of processors
361
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800362config ARCH_MXS
363 bool "Freescale MXS-based"
364 select GENERIC_CLOCKEVENTS
365 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100366 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800367 help
368 Support for Freescale MXS-based family of processors
369
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100370config ARCH_STMP3XXX
371 bool "Freescale STMP3xxx"
372 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100373 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100374 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100375 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100376 select USB_ARCH_HAS_EHCI
377 help
378 Support for systems based on the Freescale 3xxx CPUs.
379
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380config ARCH_NETX
381 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000382 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100384 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000385 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100386 This enables support for systems based on the Hilscher NetX Soc
387
388config ARCH_H720X
389 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000390 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100391 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000392 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100393 help
394 This enables support for systems based on the Hynix HMS720x
395
Russell King3b938be2007-05-12 11:25:44 +0100396config ARCH_IOP13XX
397 bool "IOP13xx-based"
398 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100400 select PLAT_IOP
401 select PCI
402 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100403 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100404 help
405 Support for Intel's IOP13XX (XScale) family of processors.
406
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407config ARCH_IOP32X
408 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100409 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000410 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100411 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100412 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100413 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000414 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100415 Support for Intel's 80219 and IOP32X (XScale) family of
416 processors.
417
418config ARCH_IOP33X
419 bool "IOP33x-based"
420 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000421 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100422 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100423 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100424 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100425 help
426 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
Russell King3b938be2007-05-12 11:25:44 +0100428config ARCH_IXP23XX
429 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100430 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100432 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000433 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100434 help
Russell King3b938be2007-05-12 11:25:44 +0100435 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
437config ARCH_IXP2000
438 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100439 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000440 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100441 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000442 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000443 help
444 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
Russell King3b938be2007-05-12 11:25:44 +0100446config ARCH_IXP4XX
447 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100448 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000449 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100450 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100451 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000452 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100453 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100454 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100455 help
Russell King3b938be2007-05-12 11:25:44 +0100456 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100457
Saeed Bisharaedabd382009-08-06 15:12:43 +0300458config ARCH_DOVE
459 bool "Marvell Dove"
Russell Kingc7862822011-01-17 18:20:05 +0000460 select CPU_V6K
Saeed Bisharaedabd382009-08-06 15:12:43 +0300461 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300462 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300463 select GENERIC_CLOCKEVENTS
464 select PLAT_ORION
465 help
466 Support for the Marvell Dove SoC 88AP510
467
Saeed Bishara651c74c2008-06-22 22:45:06 +0200468config ARCH_KIRKWOOD
469 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000470 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200471 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700472 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200473 select GENERIC_CLOCKEVENTS
474 select PLAT_ORION
475 help
476 Support for the following Marvell Kirkwood series SoCs:
477 88F6180, 88F6192 and 88F6281.
478
Russell King788c9702009-04-26 14:21:59 +0100479config ARCH_LOKI
480 bool "Marvell Loki (88RC8480)"
481 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100482 select GENERIC_CLOCKEVENTS
483 select PLAT_ORION
484 help
485 Support for the Marvell Loki (88RC8480) SoC.
486
Kevin Wells40805942010-07-27 08:49:04 -0700487config ARCH_LPC32XX
488 bool "NXP LPC32XX"
489 select CPU_ARM926T
490 select ARCH_REQUIRE_GPIOLIB
491 select HAVE_IDE
492 select ARM_AMBA
493 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100494 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700495 select GENERIC_TIME
496 select GENERIC_CLOCKEVENTS
497 help
498 Support for the NXP LPC32XX family of processors
499
Russell King788c9702009-04-26 14:21:59 +0100500config ARCH_MV78XX0
501 bool "Marvell MV78xx0"
502 select CPU_FEROCEON
503 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700504 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100505 select GENERIC_CLOCKEVENTS
506 select PLAT_ORION
507 help
508 Support for the following Marvell MV78xx0 series SoCs:
509 MV781x0, MV782x0.
510
511config ARCH_ORION5X
512 bool "Marvell Orion"
513 depends on MMU
514 select CPU_FEROCEON
515 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700516 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100517 select GENERIC_CLOCKEVENTS
518 select PLAT_ORION
519 help
520 Support for the following Marvell Orion 5x series SoCs:
521 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
522 Orion-2 (5281), Orion-1-90 (6183).
523
524config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500525 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100526 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100527 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100528 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100529 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000530 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100531 select TICK_ONESHOT
532 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400533 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100534 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500535 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100536
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100537config ARCH_KS8695
538 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000539 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100540 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000541 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100542 help
543 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
544 System-on-Chip devices.
545
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100546config ARCH_NS9XXX
547 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000548 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100549 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100550 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700551 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100552 help
553 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
554 System.
555
556 <http://www.digi.com/products/microprocessors/index.jsp>
557
Russell King788c9702009-04-26 14:21:59 +0100558config ARCH_W90X900
559 bool "Nuvoton W90X900 CPU"
560 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100561 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100562 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100563 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200564 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100565 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
566 At present, the w90x900 has been renamed nuc900, regarding
567 the ARM series product line, you can login the following
568 link address to know more.
569
570 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
571 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400572
wanzongshuna62e9032009-12-31 15:06:05 +0100573config ARCH_NUC93X
574 bool "Nuvoton NUC93X CPU"
575 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100576 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100577 help
578 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
579 low-power and high performance MPEG-4/JPEG multimedia controller chip.
580
Erik Gillingc5f80062010-01-21 16:53:02 -0800581config ARCH_TEGRA
582 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000583 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800584 select GENERIC_TIME
585 select GENERIC_CLOCKEVENTS
586 select GENERIC_GPIO
587 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000588 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800589 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700590 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800591 help
592 This enables support for NVIDIA Tegra based systems (Tegra APX,
593 Tegra 6xx and Tegra 2 series).
594
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100595config ARCH_PNX4008
596 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000597 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100598 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000599 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100600 help
601 This enables support for Philips PNX4008 mobile platform.
602
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700604 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100605 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500606 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100607 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100608 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700609 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100610 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000611 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000612 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800613 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800614 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000615 help
eric miao2c8086a2007-09-11 19:13:17 -0700616 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617
Russell King788c9702009-04-26 14:21:59 +0100618config ARCH_MSM
619 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500620 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800621 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700622 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800623 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800624 Support for Qualcomm MSM/QSD based systems. This runs on the
625 apps processor of the MSM/QSD and depends on a shared memory
626 interface to the modem processor which runs the baseband
627 stack and controls some vital subsystems
628 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800629
Magnus Dammc793c1b2010-02-05 11:14:49 +0000630config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900631 bool "Renesas SH-Mobile / R-Mobile"
632 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900633 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900634 select GENERIC_CLOCKEVENTS
635 select NO_IOPORT
636 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000637 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000638 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900639 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000640
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641config ARCH_RPC
642 bool "RiscPC"
643 select ARCH_ACORN
644 select FIQ
645 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100646 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100647 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000648 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000649 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100650 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000651 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652 help
653 On the Acorn Risc-PC, Linux can support the internal IDE disk and
654 CD-ROM interface, serial and parallel port, and the floppy drive.
655
656config ARCH_SA1100
657 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000658 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100659 select ISA
Russell King05944d72006-11-30 20:43:51 +0000660 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500661 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100662 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000663 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100664 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700665 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000666 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100667 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700668 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000669 help
670 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671
672config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900673 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800674 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100675 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700676 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000677 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900678 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 help
680 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
681 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000682 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683
Ben Dooks63b1f512010-04-30 16:32:26 +0900684 Note, the S3C2416 and the S3C2450 are so close that they even share
685 the same SoC ID code. This means that there is no seperate machine
686 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
687
Ben Dooksa08ab632008-10-21 14:06:39 +0100688config ARCH_S3C64XX
689 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000690 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900691 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900692 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100693 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900694 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000695 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100696 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900697 select ARCH_REQUIRE_GPIOLIB
698 select SAMSUNG_CLKSRC
699 select SAMSUNG_IRQ_VIC_TIMER
700 select SAMSUNG_IRQ_UART
701 select S3C_GPIO_TRACK
702 select S3C_GPIO_PULL_UPDOWN
703 select S3C_GPIO_CFG_S3C24XX
704 select S3C_GPIO_CFG_S3C64XX
705 select S3C_DEV_NAND
706 select USB_ARCH_HAS_OHCI
707 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900708 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900709 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100710 help
711 Samsung S3C64XX series based systems
712
Kukjin Kim49b7a492010-09-07 15:47:18 +0900713config ARCH_S5P64X0
714 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900715 select CPU_V6
716 select GENERIC_GPIO
717 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900718 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900719 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900720 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900721 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900722 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900723 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
724 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900725
Kukjin Kim550db7f2010-01-29 10:19:26 +0900726config ARCH_S5P6442
727 bool "Samsung S5P6442"
728 select CPU_V6
729 select GENERIC_GPIO
730 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900731 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900732 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900733 help
734 Samsung S5P6442 CPU based systems
735
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200736config ARCH_S5PC100
737 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900738 select GENERIC_GPIO
739 select HAVE_CLK
740 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100741 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900742 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900743 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900744 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900745 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900746 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200747 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900748
Kukjin Kim170f4e42010-02-24 16:40:44 +0900749config ARCH_S5PV210
750 bool "Samsung S5PV210/S5PC110"
751 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900752 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900753 select GENERIC_GPIO
754 select HAVE_CLK
755 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900756 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900757 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900758 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900759 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900760 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900761 help
762 Samsung S5PV210/S5PC110 series based systems
763
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900764config ARCH_S5PV310
765 bool "Samsung S5PV310/S5PC210"
766 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900767 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900768 select GENERIC_GPIO
769 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900770 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900771 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900772 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900773 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900774 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900775 help
776 Samsung S5PV310 series based systems
777
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778config ARCH_SHARK
779 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000780 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100781 select ISA
782 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100783 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100784 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000785 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000786 help
787 Support for the StrongARM based Digital DNARD machine, also known
788 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789
Hans J. Koch83ef3332010-09-17 18:13:56 +0200790config ARCH_TCC_926
791 bool "Telechips TCC ARM926-based systems"
792 select CPU_ARM926T
793 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100794 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200795 select GENERIC_CLOCKEVENTS
796 help
797 Support for Telechips TCC ARM926-based systems.
798
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799config ARCH_LH7A40X
800 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000801 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100802 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000803 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 help
805 Say Y here for systems based on one of the Sharp LH7A40X
806 System on a Chip processors. These CPUs include an ARM922T
807 core with a wide array of integrated devices for
808 hand-held and low-power applications.
809
Linus Walleijd98aac72009-04-27 10:21:46 +0100810config ARCH_U300
811 bool "ST-Ericsson U300 Series"
812 depends on MMU
813 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000814 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100815 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100816 select ARM_AMBA
817 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100818 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100819 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100820 select GENERIC_GPIO
821 help
822 Support for ST-Ericsson U300 series mobile platforms.
823
Russell Kingccf50e22010-03-15 19:03:06 +0000824config ARCH_U8500
825 bool "ST-Ericsson U8500 Series"
826 select CPU_V7
827 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000828 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100829 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100830 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100831 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000832 help
833 Support for ST-Ericsson's Ux500 architecture
834
835config ARCH_NOMADIK
836 bool "STMicroelectronics Nomadik"
837 select ARM_AMBA
838 select ARM_VIC
839 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100840 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000841 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000842 select ARCH_REQUIRE_GPIOLIB
843 help
844 Support for the Nomadik platform by ST-Ericsson
845
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100846config ARCH_DAVINCI
847 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100848 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700849 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100850 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700851 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100852 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700853 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530854 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100855 help
856 Support for TI's DaVinci platform.
857
Russell King3b938be2007-05-12 11:25:44 +0100858config ARCH_OMAP
859 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700860 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700861 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100862 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700863 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000864 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800865 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100866 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200867 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100868
viresh kumarcee37e52010-04-01 12:31:05 +0100869config PLAT_SPEAR
870 bool "ST SPEAr"
871 select ARM_AMBA
872 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100873 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100874 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100875 select HAVE_CLK
876 help
877 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879endchoice
880
Russell Kingccf50e22010-03-15 19:03:06 +0000881#
882# This is sorted alphabetically by mach-* pathname. However, plat-*
883# Kconfigs may be included either alphabetically (according to the
884# plat- suffix) or along side the corresponding mach-* source.
885#
Russell King95b8f202010-01-14 11:43:54 +0000886source "arch/arm/mach-aaec2000/Kconfig"
887
888source "arch/arm/mach-at91/Kconfig"
889
890source "arch/arm/mach-bcmring/Kconfig"
891
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892source "arch/arm/mach-clps711x/Kconfig"
893
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300894source "arch/arm/mach-cns3xxx/Kconfig"
895
Russell King95b8f202010-01-14 11:43:54 +0000896source "arch/arm/mach-davinci/Kconfig"
897
898source "arch/arm/mach-dove/Kconfig"
899
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000900source "arch/arm/mach-ep93xx/Kconfig"
901
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902source "arch/arm/mach-footbridge/Kconfig"
903
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200904source "arch/arm/mach-gemini/Kconfig"
905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-h720x/Kconfig"
907
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908source "arch/arm/mach-integrator/Kconfig"
909
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100910source "arch/arm/mach-iop32x/Kconfig"
911
912source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913
Dan Williams285f5fa2006-12-07 02:59:39 +0100914source "arch/arm/mach-iop13xx/Kconfig"
915
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916source "arch/arm/mach-ixp4xx/Kconfig"
917
918source "arch/arm/mach-ixp2000/Kconfig"
919
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100920source "arch/arm/mach-ixp23xx/Kconfig"
921
Russell King95b8f202010-01-14 11:43:54 +0000922source "arch/arm/mach-kirkwood/Kconfig"
923
924source "arch/arm/mach-ks8695/Kconfig"
925
926source "arch/arm/mach-lh7a40x/Kconfig"
927
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200928source "arch/arm/mach-loki/Kconfig"
929
Kevin Wells40805942010-07-27 08:49:04 -0700930source "arch/arm/mach-lpc32xx/Kconfig"
931
Russell King95b8f202010-01-14 11:43:54 +0000932source "arch/arm/mach-msm/Kconfig"
933
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200934source "arch/arm/mach-mv78xx0/Kconfig"
935
Russell King95b8f202010-01-14 11:43:54 +0000936source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800938source "arch/arm/mach-mxs/Kconfig"
939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-nomadik/Kconfig"
943source "arch/arm/plat-nomadik/Kconfig"
944
945source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Russell Kingd91a8912010-02-04 18:13:17 +0000947source "arch/arm/mach-nuc93x/Kconfig"
948
Tony Lindgrend48af152005-07-10 19:58:17 +0100949source "arch/arm/plat-omap/Kconfig"
950
951source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952
Tony Lindgren1dbae812005-11-10 14:26:51 +0000953source "arch/arm/mach-omap2/Kconfig"
954
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400955source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-pxa/Kconfig"
958source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-mmp/Kconfig"
961
962source "arch/arm/mach-realview/Kconfig"
963
964source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300965
Ben Dookscf383672009-11-10 00:14:58 +0000966source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100967source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900968source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969
viresh kumarcee37e52010-04-01 12:31:05 +0100970source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100971
Hans J. Koch83ef3332010-09-17 18:13:56 +0200972source "arch/arm/plat-tcc/Kconfig"
973
Ben Dooksa21765a2007-02-11 18:31:01 +0100974if ARCH_S3C2410
975source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100977source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900978source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100980source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982
Ben Dooksa08ab632008-10-21 14:06:39 +0100983if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900984source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100985endif
986
Kukjin Kim49b7a492010-09-07 15:47:18 +0900987source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900988
Kukjin Kim550db7f2010-01-29 10:19:26 +0900989source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100990
Byungho Min5a7652f2009-06-23 21:39:42 +0900991source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900992
Kukjin Kim170f4e42010-02-24 16:40:44 +0900993source "arch/arm/mach-s5pv210/Kconfig"
994
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900995source "arch/arm/mach-s5pv310/Kconfig"
996
Russell King882d01f2010-03-02 23:40:15 +0000997source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998
Russell King882d01f2010-03-02 23:40:15 +0000999source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001000
Erik Gillingc5f80062010-01-21 16:53:02 -08001001source "arch/arm/mach-tegra/Kconfig"
1002
Russell King95b8f202010-01-14 11:43:54 +00001003source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006
1007source "arch/arm/mach-versatile/Kconfig"
1008
Russell Kingceade892010-02-11 21:44:53 +00001009source "arch/arm/mach-vexpress/Kconfig"
1010
wanzongshun7ec80dd2008-12-03 03:55:38 +01001011source "arch/arm/mach-w90x900/Kconfig"
1012
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013# Definitions to make life easier
1014config ARCH_ACORN
1015 bool
1016
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001017config PLAT_IOP
1018 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001019 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001020 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001021
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001022config PLAT_ORION
1023 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001024 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001025
Eric Miaobd5ce432009-01-20 12:06:01 +08001026config PLAT_PXA
1027 bool
1028
Russell Kingf4b8b312010-01-14 12:48:06 +00001029config PLAT_VERSATILE
1030 bool
1031
Russell Kinge3887712010-01-14 13:30:16 +00001032config ARM_TIMER_SP804
1033 bool
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035source arch/arm/mm/Kconfig
1036
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001037config IWMMXT
1038 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001039 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1040 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001041 help
1042 Enable support for iWMMXt context switching at run time if
1043 running on a CPU that supports it.
1044
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1046config XSCALE_PMU
1047 bool
1048 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1049 default y
1050
Jamie Iles0f4f0672010-02-02 20:23:15 +01001051config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001052 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001053 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001054 default y
1055 bool
1056
eric miao52108642010-12-13 09:42:34 +01001057config MULTI_IRQ_HANDLER
1058 bool
1059 help
1060 Allow each machine to specify it's own IRQ handler at run time.
1061
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001062if !MMU
1063source "arch/arm/Kconfig-nommu"
1064endif
1065
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001066config ARM_ERRATA_411920
1067 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001068 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001069 help
1070 Invalidation of the Instruction Cache operation can
1071 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1072 It does not affect the MPCore. This option enables the ARM Ltd.
1073 recommended workaround.
1074
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001075config ARM_ERRATA_430973
1076 bool "ARM errata: Stale prediction on replaced interworking branch"
1077 depends on CPU_V7
1078 help
1079 This option enables the workaround for the 430973 Cortex-A8
1080 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1081 interworking branch is replaced with another code sequence at the
1082 same virtual address, whether due to self-modifying code or virtual
1083 to physical address re-mapping, Cortex-A8 does not recover from the
1084 stale interworking branch prediction. This results in Cortex-A8
1085 executing the new code sequence in the incorrect ARM or Thumb state.
1086 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1087 and also flushes the branch target cache at every context switch.
1088 Note that setting specific bits in the ACTLR register may not be
1089 available in non-secure mode.
1090
Catalin Marinas855c5512009-04-30 17:06:15 +01001091config ARM_ERRATA_458693
1092 bool "ARM errata: Processor deadlock when a false hazard is created"
1093 depends on CPU_V7
1094 help
1095 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1096 erratum. For very specific sequences of memory operations, it is
1097 possible for a hazard condition intended for a cache line to instead
1098 be incorrectly associated with a different cache line. This false
1099 hazard might then cause a processor deadlock. The workaround enables
1100 the L1 caching of the NEON accesses and disables the PLD instruction
1101 in the ACTLR register. Note that setting specific bits in the ACTLR
1102 register may not be available in non-secure mode.
1103
Catalin Marinas0516e462009-04-30 17:06:20 +01001104config ARM_ERRATA_460075
1105 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1106 depends on CPU_V7
1107 help
1108 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1109 erratum. Any asynchronous access to the L2 cache may encounter a
1110 situation in which recent store transactions to the L2 cache are lost
1111 and overwritten with stale memory contents from external memory. The
1112 workaround disables the write-allocate mode for the L2 cache via the
1113 ACTLR register. Note that setting specific bits in the ACTLR register
1114 may not be available in non-secure mode.
1115
Will Deacon9f050272010-09-14 09:51:43 +01001116config ARM_ERRATA_742230
1117 bool "ARM errata: DMB operation may be faulty"
1118 depends on CPU_V7 && SMP
1119 help
1120 This option enables the workaround for the 742230 Cortex-A9
1121 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1122 between two write operations may not ensure the correct visibility
1123 ordering of the two writes. This workaround sets a specific bit in
1124 the diagnostic register of the Cortex-A9 which causes the DMB
1125 instruction to behave as a DSB, ensuring the correct behaviour of
1126 the two writes.
1127
Will Deacona672e992010-09-14 09:53:02 +01001128config ARM_ERRATA_742231
1129 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1130 depends on CPU_V7 && SMP
1131 help
1132 This option enables the workaround for the 742231 Cortex-A9
1133 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1134 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1135 accessing some data located in the same cache line, may get corrupted
1136 data due to bad handling of the address hazard when the line gets
1137 replaced from one of the CPUs at the same time as another CPU is
1138 accessing it. This workaround sets specific bits in the diagnostic
1139 register of the Cortex-A9 which reduces the linefill issuing
1140 capabilities of the processor.
1141
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001142config PL310_ERRATA_588369
1143 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1144 depends on CACHE_L2X0 && ARCH_OMAP4
1145 help
1146 The PL310 L2 cache controller implements three types of Clean &
1147 Invalidate maintenance operations: by Physical Address
1148 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1149 They are architecturally defined to behave as the execution of a
1150 clean operation followed immediately by an invalidate operation,
1151 both performing to the same memory location. This functionality
1152 is not correctly implemented in PL310 as clean lines are not
1153 invalidated as a result of these operations. Note that this errata
1154 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001155
1156config ARM_ERRATA_720789
1157 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1158 depends on CPU_V7 && SMP
1159 help
1160 This option enables the workaround for the 720789 Cortex-A9 (prior to
1161 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1162 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1163 As a consequence of this erratum, some TLB entries which should be
1164 invalidated are not, resulting in an incoherency in the system page
1165 tables. The workaround changes the TLB flushing routines to invalidate
1166 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001167
1168config ARM_ERRATA_743622
1169 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1170 depends on CPU_V7
1171 help
1172 This option enables the workaround for the 743622 Cortex-A9
1173 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1174 optimisation in the Cortex-A9 Store Buffer may lead to data
1175 corruption. This workaround sets a specific bit in the diagnostic
1176 register of the Cortex-A9 which disables the Store Buffer
1177 optimisation, preventing the defect from occurring. This has no
1178 visible impact on the overall performance or power consumption of the
1179 processor.
1180
Linus Torvalds1da177e2005-04-16 15:20:36 -07001181endmenu
1182
1183source "arch/arm/common/Kconfig"
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185menu "Bus support"
1186
1187config ARM_AMBA
1188 bool
1189
1190config ISA
1191 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 help
1193 Find out whether you have ISA slots on your motherboard. ISA is the
1194 name of a bus system, i.e. the way the CPU talks to the other stuff
1195 inside your box. Other bus systems are PCI, EISA, MicroChannel
1196 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1197 newer boards don't support it. If you have ISA, say Y, otherwise N.
1198
Russell King065909b2006-01-04 15:44:16 +00001199# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200config ISA_DMA
1201 bool
Russell King065909b2006-01-04 15:44:16 +00001202 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203
Russell King065909b2006-01-04 15:44:16 +00001204# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001205config ISA_DMA_API
1206 bool
Al Viro5cae8412005-05-04 05:39:22 +01001207
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001209 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 help
1211 Find out whether you have a PCI motherboard. PCI is the name of a
1212 bus system, i.e. the way the CPU talks to the other stuff inside
1213 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1214 VESA. If you have PCI, say Y, otherwise N.
1215
Anton Vorontsov52882172010-04-19 13:20:49 +01001216config PCI_DOMAINS
1217 bool
1218 depends on PCI
1219
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001220config PCI_NANOENGINE
1221 bool "BSE nanoEngine PCI support"
1222 depends on SA1100_NANOENGINE
1223 help
1224 Enable PCI on the BSE nanoEngine board.
1225
Matthew Wilcox36e23592007-07-10 10:54:40 -06001226config PCI_SYSCALL
1227 def_bool PCI
1228
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229# Select the host bridge type
1230config PCI_HOST_VIA82C505
1231 bool
1232 depends on PCI && ARCH_SHARK
1233 default y
1234
Mike Rapoporta0113a92007-11-25 08:55:34 +01001235config PCI_HOST_ITE8152
1236 bool
1237 depends on PCI && MACH_ARMCORE
1238 default y
1239 select DMABOUNCE
1240
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241source "drivers/pci/Kconfig"
1242
1243source "drivers/pcmcia/Kconfig"
1244
1245endmenu
1246
1247menu "Kernel Features"
1248
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001249source "kernel/time/Kconfig"
1250
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251config SMP
1252 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001253 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001254 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001255 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001256 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1257 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001258 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001259 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001260 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 help
1262 This enables support for systems with more than one CPU. If you have
1263 a system with only one CPU, like most personal computers, say N. If
1264 you have a system with more than one CPU, say Y.
1265
1266 If you say N here, the kernel will run on single and multiprocessor
1267 machines, but will use only one CPU of a multiprocessor machine. If
1268 you say Y here, the kernel will run on many, but not all, single
1269 processor machines. On a single processor machine, the kernel will
1270 run faster if you say N here.
1271
Adrian Bunk03502fa2008-02-03 15:50:21 +02001272 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001274 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275
1276 If you don't know what to do here, say N.
1277
Russell Kingf00ec482010-09-04 10:47:48 +01001278config SMP_ON_UP
1279 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1280 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001281 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001282 default y
1283 help
1284 SMP kernels contain instructions which fail on non-SMP processors.
1285 Enabling this option allows the kernel to modify itself to make
1286 these instructions safe. Disabling it allows about 1K of space
1287 savings.
1288
1289 If you don't know what to do here, say Y.
1290
Russell Kinga8cbcd92009-05-16 11:51:14 +01001291config HAVE_ARM_SCU
1292 bool
1293 depends on SMP
1294 help
1295 This option enables support for the ARM system coherency unit
1296
Russell Kingf32f4ce2009-05-16 12:14:21 +01001297config HAVE_ARM_TWD
1298 bool
1299 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001300 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001301 help
1302 This options enables support for the ARM timer and watchdog unit
1303
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001304choice
1305 prompt "Memory split"
1306 default VMSPLIT_3G
1307 help
1308 Select the desired split between kernel and user memory.
1309
1310 If you are not absolutely sure what you are doing, leave this
1311 option alone!
1312
1313 config VMSPLIT_3G
1314 bool "3G/1G user/kernel split"
1315 config VMSPLIT_2G
1316 bool "2G/2G user/kernel split"
1317 config VMSPLIT_1G
1318 bool "1G/3G user/kernel split"
1319endchoice
1320
1321config PAGE_OFFSET
1322 hex
1323 default 0x40000000 if VMSPLIT_1G
1324 default 0x80000000 if VMSPLIT_2G
1325 default 0xC0000000
1326
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327config NR_CPUS
1328 int "Maximum number of CPUs (2-32)"
1329 range 2 32
1330 depends on SMP
1331 default "4"
1332
Russell Kinga054a812005-11-02 22:24:33 +00001333config HOTPLUG_CPU
1334 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1335 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001336 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001337 help
1338 Say Y here to experiment with turning CPUs off and on. CPUs
1339 can be controlled through /sys/devices/system/cpu.
1340
Russell King37ee16a2005-11-08 19:08:05 +00001341config LOCAL_TIMERS
1342 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001343 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001344 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001345 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001346 help
1347 Enable support for local timers on SMP platforms, rather then the
1348 legacy IPI broadcast method. Local timers allows the system
1349 accounting to be spread across the timer interval, preventing a
1350 "thundering herd" at every timer tick.
1351
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001352source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353
Russell Kingf8065812006-03-02 22:41:59 +00001354config HZ
1355 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001356 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001357 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001358 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001359 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001360 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001361 default 100
1362
Catalin Marinas16c79652009-07-24 12:33:02 +01001363config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001364 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001365 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001366 select AEABI
1367 select ARM_ASM_UNIFIED
1368 help
1369 By enabling this option, the kernel will be compiled in
1370 Thumb-2 mode. A compiler/assembler that understand the unified
1371 ARM-Thumb syntax is needed.
1372
1373 If unsure, say N.
1374
Catalin Marinas0becb082009-07-24 12:32:53 +01001375config ARM_ASM_UNIFIED
1376 bool
1377
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001378config AEABI
1379 bool "Use the ARM EABI to compile the kernel"
1380 help
1381 This option allows for the kernel to be compiled using the latest
1382 ARM ABI (aka EABI). This is only useful if you are using a user
1383 space environment that is also compiled with EABI.
1384
1385 Since there are major incompatibilities between the legacy ABI and
1386 EABI, especially with regard to structure member alignment, this
1387 option also changes the kernel syscall calling convention to
1388 disambiguate both ABIs and allow for backward compatibility support
1389 (selected with CONFIG_OABI_COMPAT).
1390
1391 To use this you need GCC version 4.0.0 or later.
1392
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001393config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001394 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001395 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001396 default y
1397 help
1398 This option preserves the old syscall interface along with the
1399 new (ARM EABI) one. It also provides a compatibility layer to
1400 intercept syscalls that have structure arguments which layout
1401 in memory differs between the legacy ABI and the new ARM EABI
1402 (only for non "thumb" binaries). This option adds a tiny
1403 overhead to all syscalls and produces a slightly larger kernel.
1404 If you know you'll be using only pure EABI user space then you
1405 can say N here. If this option is not selected and you attempt
1406 to execute a legacy ABI binary then the result will be
1407 UNPREDICTABLE (in fact it can be predicted that it won't work
1408 at all). If in doubt say Y.
1409
Mel Gormaneb335752009-05-13 17:34:48 +01001410config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001411 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001412
Russell King05944d72006-11-30 20:43:51 +00001413config ARCH_SPARSEMEM_ENABLE
1414 bool
1415
Russell King07a2f732008-10-01 21:39:58 +01001416config ARCH_SPARSEMEM_DEFAULT
1417 def_bool ARCH_SPARSEMEM_ENABLE
1418
Russell King05944d72006-11-30 20:43:51 +00001419config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001420 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001421
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001422config HIGHMEM
1423 bool "High Memory Support (EXPERIMENTAL)"
1424 depends on MMU && EXPERIMENTAL
1425 help
1426 The address space of ARM processors is only 4 Gigabytes large
1427 and it has to accommodate user address space, kernel address
1428 space as well as some memory mapped IO. That means that, if you
1429 have a large amount of physical memory and/or IO, not all of the
1430 memory can be "permanently mapped" by the kernel. The physical
1431 memory that is not permanently mapped is called "high memory".
1432
1433 Depending on the selected kernel/user memory split, minimum
1434 vmalloc space and actual amount of RAM, you may not need this
1435 option which should result in a slightly faster kernel.
1436
1437 If unsure, say n.
1438
Russell King65cec8e2009-08-17 20:02:06 +01001439config HIGHPTE
1440 bool "Allocate 2nd-level pagetables from highmem"
1441 depends on HIGHMEM
1442 depends on !OUTER_CACHE
1443
Jamie Iles1b8873a2010-02-02 20:25:44 +01001444config HW_PERF_EVENTS
1445 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001446 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001447 default y
1448 help
1449 Enable hardware performance counter support for perf events. If
1450 disabled, perf events will use software events only.
1451
Dave Hansen3f22ab22005-06-23 00:07:43 -07001452source "mm/Kconfig"
1453
Magnus Dammc1b2d972010-07-05 10:00:11 +01001454config FORCE_MAX_ZONEORDER
1455 int "Maximum zone order" if ARCH_SHMOBILE
1456 range 11 64 if ARCH_SHMOBILE
1457 default "9" if SA1111
1458 default "11"
1459 help
1460 The kernel memory allocator divides physically contiguous memory
1461 blocks into "zones", where each zone is a power of two number of
1462 pages. This option selects the largest power of two that the kernel
1463 keeps in the memory allocator. If you need to allocate very large
1464 blocks of physically contiguous memory, then you may need to
1465 increase this value.
1466
1467 This config option is actually maximum order plus one. For example,
1468 a value of 11 means that the largest free memory block is 2^10 pages.
1469
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470config LEDS
1471 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001472 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001473 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1475 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001476 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001477 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001478 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479 help
1480 If you say Y here, the LEDs on your machine will be used
1481 to provide useful information about your current system status.
1482
1483 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1484 be able to select which LEDs are active using the options below. If
1485 you are compiling a kernel for the EBSA-110 or the LART however, the
1486 red LED will simply flash regularly to indicate that the system is
1487 still functional. It is safe to say Y here if you have a CATS
1488 system, but the driver will do nothing.
1489
1490config LEDS_TIMER
1491 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001492 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1493 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001495 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496 default y if ARCH_EBSA110
1497 help
1498 If you say Y here, one of the system LEDs (the green one on the
1499 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1500 will flash regularly to indicate that the system is still
1501 operational. This is mainly useful to kernel hackers who are
1502 debugging unstable kernels.
1503
1504 The LART uses the same LED for both Timer LED and CPU usage LED
1505 functions. You may choose to use both, but the Timer LED function
1506 will overrule the CPU usage LED.
1507
1508config LEDS_CPU
1509 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001510 !ARCH_OMAP) \
1511 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1512 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 depends on LEDS
1514 help
1515 If you say Y here, the red LED will be used to give a good real
1516 time indication of CPU usage, by lighting whenever the idle task
1517 is not currently executing.
1518
1519 The LART uses the same LED for both Timer LED and CPU usage LED
1520 functions. You may choose to use both, but the Timer LED function
1521 will overrule the CPU usage LED.
1522
1523config ALIGNMENT_TRAP
1524 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001525 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001527 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001529 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1531 address divisible by 4. On 32-bit ARM processors, these non-aligned
1532 fetch/store instructions will be emulated in software if you say
1533 here, which has a severe performance impact. This is necessary for
1534 correct operation of some network protocols. With an IP-only
1535 configuration it is safe to say N, otherwise say Y.
1536
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001537config UACCESS_WITH_MEMCPY
1538 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1539 depends on MMU && EXPERIMENTAL
1540 default y if CPU_FEROCEON
1541 help
1542 Implement faster copy_to_user and clear_user methods for CPU
1543 cores where a 8-word STM instruction give significantly higher
1544 memory write throughput than a sequence of individual 32bit stores.
1545
1546 A possible side effect is a slight increase in scheduling latency
1547 between threads sharing the same address space if they invoke
1548 such copy operations with large buffers.
1549
1550 However, if the CPU data cache is using a write-allocate mode,
1551 this option is unlikely to provide any performance gain.
1552
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001553config SECCOMP
1554 bool
1555 prompt "Enable seccomp to safely compute untrusted bytecode"
1556 ---help---
1557 This kernel feature is useful for number crunching applications
1558 that may need to compute untrusted bytecode during their
1559 execution. By using pipes or other transports made available to
1560 the process as file descriptors supporting the read/write
1561 syscalls, it's possible to isolate those applications in
1562 their own address space using seccomp. Once seccomp is
1563 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1564 and the task is only allowed to execute a few safe syscalls
1565 defined by each seccomp mode.
1566
Nicolas Pitrec743f382010-05-24 23:55:42 -04001567config CC_STACKPROTECTOR
1568 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001569 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001570 help
1571 This option turns on the -fstack-protector GCC feature. This
1572 feature puts, at the beginning of functions, a canary value on
1573 the stack just before the return address, and validates
1574 the value just before actually returning. Stack based buffer
1575 overflows (that need to overwrite this return address) now also
1576 overwrite the canary, which gets detected and the attack is then
1577 neutralized via a kernel panic.
1578 This feature requires gcc version 4.2 or above.
1579
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001580config DEPRECATED_PARAM_STRUCT
1581 bool "Provide old way to pass kernel parameters"
1582 help
1583 This was deprecated in 2001 and announced to live on for 5 years.
1584 Some old boot loaders still use this way.
1585
Linus Torvalds1da177e2005-04-16 15:20:36 -07001586endmenu
1587
1588menu "Boot options"
1589
1590# Compressed boot loader in ROM. Yes, we really want to ask about
1591# TEXT and BSS so we preserve their values in the config files.
1592config ZBOOT_ROM_TEXT
1593 hex "Compressed ROM boot loader base address"
1594 default "0"
1595 help
1596 The physical address at which the ROM-able zImage is to be
1597 placed in the target. Platforms which normally make use of
1598 ROM-able zImage formats normally set this to a suitable
1599 value in their defconfig file.
1600
1601 If ZBOOT_ROM is not enabled, this has no effect.
1602
1603config ZBOOT_ROM_BSS
1604 hex "Compressed ROM boot loader BSS address"
1605 default "0"
1606 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001607 The base address of an area of read/write memory in the target
1608 for the ROM-able zImage which must be available while the
1609 decompressor is running. It must be large enough to hold the
1610 entire decompressed kernel plus an additional 128 KiB.
1611 Platforms which normally make use of ROM-able zImage formats
1612 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613
1614 If ZBOOT_ROM is not enabled, this has no effect.
1615
1616config ZBOOT_ROM
1617 bool "Compressed boot loader in ROM/flash"
1618 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1619 help
1620 Say Y here if you intend to execute your compressed kernel image
1621 (zImage) directly from ROM or flash. If unsure, say N.
1622
1623config CMDLINE
1624 string "Default kernel command string"
1625 default ""
1626 help
1627 On some architectures (EBSA110 and CATS), there is currently no way
1628 for the boot loader to pass arguments to the kernel. For these
1629 architectures, you should supply some command-line options at build
1630 time by entering them here. As a minimum, you should specify the
1631 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1632
Alexander Holler92d20402010-02-16 19:04:53 +01001633config CMDLINE_FORCE
1634 bool "Always use the default kernel command string"
1635 depends on CMDLINE != ""
1636 help
1637 Always use the default kernel command string, even if the boot
1638 loader passes other arguments to the kernel.
1639 This is useful if you cannot or don't want to change the
1640 command-line options your boot loader passes to the kernel.
1641
1642 If unsure, say N.
1643
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644config XIP_KERNEL
1645 bool "Kernel Execute-In-Place from ROM"
1646 depends on !ZBOOT_ROM
1647 help
1648 Execute-In-Place allows the kernel to run from non-volatile storage
1649 directly addressable by the CPU, such as NOR flash. This saves RAM
1650 space since the text section of the kernel is not loaded from flash
1651 to RAM. Read-write sections, such as the data section and stack,
1652 are still copied to RAM. The XIP kernel is not compressed since
1653 it has to run directly from flash, so it will take more space to
1654 store it. The flash address used to link the kernel object files,
1655 and for storing it, is configuration dependent. Therefore, if you
1656 say Y here, you must know the proper physical address where to
1657 store the kernel image depending on your own flash memory usage.
1658
1659 Also note that the make target becomes "make xipImage" rather than
1660 "make zImage" or "make Image". The final kernel binary to put in
1661 ROM memory will be arch/arm/boot/xipImage.
1662
1663 If unsure, say N.
1664
1665config XIP_PHYS_ADDR
1666 hex "XIP Kernel Physical Location"
1667 depends on XIP_KERNEL
1668 default "0x00080000"
1669 help
1670 This is the physical address in your flash memory the kernel will
1671 be linked for and stored to. This address is dependent on your
1672 own flash usage.
1673
Richard Purdiec587e4a2007-02-06 21:29:00 +01001674config KEXEC
1675 bool "Kexec system call (EXPERIMENTAL)"
1676 depends on EXPERIMENTAL
1677 help
1678 kexec is a system call that implements the ability to shutdown your
1679 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001680 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001681 you can start any kernel with it, not just Linux.
1682
1683 It is an ongoing process to be certain the hardware in a machine
1684 is properly shutdown, so do not be surprised if this code does not
1685 initially work for you. It may help to enable device hotplugging
1686 support.
1687
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001688config ATAGS_PROC
1689 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001690 depends on KEXEC
1691 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001692 help
1693 Should the atags used to boot the kernel be exported in an "atags"
1694 file in procfs. Useful with kexec.
1695
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001696config CRASH_DUMP
1697 bool "Build kdump crash kernel (EXPERIMENTAL)"
1698 depends on EXPERIMENTAL
1699 help
1700 Generate crash dump after being started by kexec. This should
1701 be normally only set in special crash dump kernels which are
1702 loaded in the main kernel with kexec-tools into a specially
1703 reserved region and then later executed after a crash by
1704 kdump/kexec. The crash dump kernel must be compiled to a
1705 memory address not used by the main kernel
1706
1707 For more details see Documentation/kdump/kdump.txt
1708
Eric Miaoe69edc792010-07-05 15:56:50 +02001709config AUTO_ZRELADDR
1710 bool "Auto calculation of the decompressed kernel image address"
1711 depends on !ZBOOT_ROM && !ARCH_U300
1712 help
1713 ZRELADDR is the physical address where the decompressed kernel
1714 image will be placed. If AUTO_ZRELADDR is selected, the address
1715 will be determined at run-time by masking the current IP with
1716 0xf8000000. This assumes the zImage being placed in the first 128MB
1717 from start of memory.
1718
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719endmenu
1720
Russell Kingac9d7ef2008-08-18 17:26:00 +01001721menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722
Ben Dooks89c52ed2009-07-30 23:23:24 +01001723if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724
1725source "drivers/cpufreq/Kconfig"
1726
Yong Shen64f102b2010-10-21 21:18:59 +08001727config CPU_FREQ_IMX
1728 tristate "CPUfreq driver for i.MX CPUs"
1729 depends on ARCH_MXC && CPU_FREQ
1730 help
1731 This enables the CPUfreq driver for i.MX CPUs.
1732
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733config CPU_FREQ_SA1100
1734 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735
1736config CPU_FREQ_SA1110
1737 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738
1739config CPU_FREQ_INTEGRATOR
1740 tristate "CPUfreq driver for ARM Integrator CPUs"
1741 depends on ARCH_INTEGRATOR && CPU_FREQ
1742 default y
1743 help
1744 This enables the CPUfreq driver for ARM Integrator CPUs.
1745
1746 For details, take a look at <file:Documentation/cpu-freq>.
1747
1748 If in doubt, say Y.
1749
Russell King9e2697f2007-12-14 13:30:14 +00001750config CPU_FREQ_PXA
1751 bool
1752 depends on CPU_FREQ && ARCH_PXA && PXA25x
1753 default y
1754 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1755
Mark Brownb3748dd2009-06-15 11:23:20 +01001756config CPU_FREQ_S3C64XX
1757 bool "CPUfreq support for Samsung S3C64XX CPUs"
1758 depends on CPU_FREQ && CPU_S3C6410
1759
Ben Dooks9d56c022009-07-30 23:23:25 +01001760config CPU_FREQ_S3C
1761 bool
1762 help
1763 Internal configuration node for common cpufreq on Samsung SoC
1764
1765config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001766 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001767 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1768 select CPU_FREQ_S3C
1769 help
1770 This enables the CPUfreq driver for the Samsung S3C24XX family
1771 of CPUs.
1772
1773 For details, take a look at <file:Documentation/cpu-freq>.
1774
1775 If in doubt, say N.
1776
1777config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001778 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001779 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1780 help
1781 Compile in support for changing the PLL frequency from the
1782 S3C24XX series CPUfreq driver. The PLL takes time to settle
1783 after a frequency change, so by default it is not enabled.
1784
1785 This also means that the PLL tables for the selected CPU(s) will
1786 be built which may increase the size of the kernel image.
1787
1788config CPU_FREQ_S3C24XX_DEBUG
1789 bool "Debug CPUfreq Samsung driver core"
1790 depends on CPU_FREQ_S3C24XX
1791 help
1792 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1793
1794config CPU_FREQ_S3C24XX_IODEBUG
1795 bool "Debug CPUfreq Samsung driver IO timing"
1796 depends on CPU_FREQ_S3C24XX
1797 help
1798 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1799
Ben Dookse6d197a2009-07-30 23:23:42 +01001800config CPU_FREQ_S3C24XX_DEBUGFS
1801 bool "Export debugfs for CPUFreq"
1802 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1803 help
1804 Export status information via debugfs.
1805
Linus Torvalds1da177e2005-04-16 15:20:36 -07001806endif
1807
Russell Kingac9d7ef2008-08-18 17:26:00 +01001808source "drivers/cpuidle/Kconfig"
1809
1810endmenu
1811
Linus Torvalds1da177e2005-04-16 15:20:36 -07001812menu "Floating point emulation"
1813
1814comment "At least one emulation must be selected"
1815
1816config FPE_NWFPE
1817 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001818 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819 ---help---
1820 Say Y to include the NWFPE floating point emulator in the kernel.
1821 This is necessary to run most binaries. Linux does not currently
1822 support floating point hardware so you need to say Y here even if
1823 your machine has an FPA or floating point co-processor podule.
1824
1825 You may say N here if you are going to load the Acorn FPEmulator
1826 early in the bootup.
1827
1828config FPE_NWFPE_XP
1829 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001830 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831 help
1832 Say Y to include 80-bit support in the kernel floating-point
1833 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1834 Note that gcc does not generate 80-bit operations by default,
1835 so in most cases this option only enlarges the size of the
1836 floating point emulator without any good reason.
1837
1838 You almost surely want to say N here.
1839
1840config FPE_FASTFPE
1841 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001842 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843 ---help---
1844 Say Y here to include the FAST floating point emulator in the kernel.
1845 This is an experimental much faster emulator which now also has full
1846 precision for the mantissa. It does not support any exceptions.
1847 It is very simple, and approximately 3-6 times faster than NWFPE.
1848
1849 It should be sufficient for most programs. It may be not suitable
1850 for scientific calculations, but you have to check this for yourself.
1851 If you do not feel you need a faster FP emulation you should better
1852 choose NWFPE.
1853
1854config VFP
1855 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001856 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857 help
1858 Say Y to include VFP support code in the kernel. This is needed
1859 if your hardware includes a VFP unit.
1860
1861 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1862 release notes and additional status information.
1863
1864 Say N if your target does not have VFP hardware.
1865
Catalin Marinas25ebee02007-09-25 15:22:24 +01001866config VFPv3
1867 bool
1868 depends on VFP
1869 default y if CPU_V7
1870
Catalin Marinasb5872db2008-01-10 19:16:17 +01001871config NEON
1872 bool "Advanced SIMD (NEON) Extension support"
1873 depends on VFPv3 && CPU_V7
1874 help
1875 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1876 Extension.
1877
Linus Torvalds1da177e2005-04-16 15:20:36 -07001878endmenu
1879
1880menu "Userspace binary formats"
1881
1882source "fs/Kconfig.binfmt"
1883
1884config ARTHUR
1885 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001886 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001887 help
1888 Say Y here to include the kernel code necessary if you want to run
1889 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1890 experimental; if this sounds frightening, say N and sleep in peace.
1891 You can also say M here to compile this support as a module (which
1892 will be called arthur).
1893
1894endmenu
1895
1896menu "Power management options"
1897
Russell Kingeceab4a2005-11-15 11:31:41 +00001898source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899
Johannes Bergf4cb5702007-12-08 02:14:00 +01001900config ARCH_SUSPEND_POSSIBLE
1901 def_bool y
1902
Linus Torvalds1da177e2005-04-16 15:20:36 -07001903endmenu
1904
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001905source "net/Kconfig"
1906
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001907source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908
1909source "fs/Kconfig"
1910
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911source "arch/arm/Kconfig.debug"
1912
1913source "security/Kconfig"
1914
1915source "crypto/Kconfig"
1916
1917source "lib/Kconfig"