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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +010010 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 help
32 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 Europe. There is an ARM Linux project with a web page at
37 <http://www.arm.linux.org.uk/>.
38
Russell King1a189b92008-04-13 21:41:55 +010039config HAVE_PWM
40 bool
41
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010042config MIGHT_HAVE_PCI
43 bool
44
Ralf Baechle75e71532007-02-09 17:08:58 +000045config SYS_SUPPORTS_APM_EMULATION
46 bool
47
Russell King112f38a42010-12-15 19:23:07 +000048config HAVE_SCHED_CLOCK
49 bool
50
David Brownell0a938b92007-03-05 00:30:18 -080051config GENERIC_GPIO
52 bool
David Brownell0a938b92007-03-05 00:30:18 -080053
John Stultz5cfc8ee2010-03-24 00:22:36 +000054config ARCH_USES_GETTIMEOFFSET
55 bool
56 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010057
Kevin Hilman0567a0c2007-03-13 20:29:24 +010058config GENERIC_CLOCKEVENTS
59 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010060
Catalin Marinasa8655e82008-02-04 17:30:57 +010061config GENERIC_CLOCKEVENTS_BROADCAST
62 bool
63 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010064 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010065
Linus Walleijbc581772009-09-15 17:30:37 +010066config HAVE_TCM
67 bool
68 select GENERIC_ALLOCATOR
69
Russell Kinge119bff2010-01-10 17:23:29 +000070config HAVE_PROC_CPU
71 bool
72
Al Viro5ea81762007-02-11 15:41:31 +000073config NO_IOPORT
74 bool
Al Viro5ea81762007-02-11 15:41:31 +000075
Linus Torvalds1da177e2005-04-16 15:20:36 -070076config EISA
77 bool
78 ---help---
79 The Extended Industry Standard Architecture (EISA) bus was
80 developed as an open alternative to the IBM MicroChannel bus.
81
82 The EISA bus provided some of the features of the IBM MicroChannel
83 bus while maintaining backward compatibility with cards made for
84 the older ISA bus. The EISA bus saw limited use between 1988 and
85 1995 when it was made obsolete by the PCI bus.
86
87 Say Y here if you are building a kernel for an EISA-based machine.
88
89 Otherwise, say N.
90
91config SBUS
92 bool
93
94config MCA
95 bool
96 help
97 MicroChannel Architecture is found in some IBM PS/2 machines and
98 laptops. It is a bus system similar to PCI or ISA. See
99 <file:Documentation/mca.txt> (and especially the web page given
100 there) before attempting to build an MCA bus kernel.
101
Russell Kingf16fb1e2007-04-28 09:59:37 +0100102config STACKTRACE_SUPPORT
103 bool
104 default y
105
Nicolas Pitref76e9152008-04-24 01:31:46 -0400106config HAVE_LATENCYTOP_SUPPORT
107 bool
108 depends on !SMP
109 default y
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config LOCKDEP_SUPPORT
112 bool
113 default y
114
Russell King7ad1bcb2006-08-27 12:07:02 +0100115config TRACE_IRQFLAGS_SUPPORT
116 bool
117 default y
118
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100119config HARDIRQS_SW_RESEND
120 bool
121 default y
122
123config GENERIC_IRQ_PROBE
124 bool
125 default y
126
Nick Piggin95c354f2008-01-30 13:31:20 +0100127config GENERIC_LOCKBREAK
128 bool
129 default y
130 depends on SMP && PREEMPT
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config RWSEM_GENERIC_SPINLOCK
133 bool
134 default y
135
136config RWSEM_XCHGADD_ALGORITHM
137 bool
138
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139config ARCH_HAS_ILOG2_U32
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
142config ARCH_HAS_ILOG2_U64
143 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144
Ben Dooks89c52ed2009-07-30 23:23:24 +0100145config ARCH_HAS_CPUFREQ
146 bool
147 help
148 Internal node to signify that the ARCH has CPUFREQ support
149 and that the relevant menu configurations are displayed for
150 it.
151
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100152config ARCH_HAS_CPU_IDLE_WAIT
153 def_bool y
154
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800155config GENERIC_HWEIGHT
156 bool
157 default y
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config GENERIC_CALIBRATE_DELAY
160 bool
161 default y
162
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100163config ARCH_MAY_HAVE_PC_FDC
164 bool
165
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800166config ZONE_DMA
167 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800168
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800169config NEED_DMA_MAP_STATE
170 def_bool y
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config GENERIC_ISA_DMA
173 bool
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config FIQ
176 bool
177
Al Viro034d2f52005-12-19 16:27:59 -0500178config ARCH_MTD_XIP
179 bool
180
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Russell Kingccf50e22010-03-15 19:03:06 +0000207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000220 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100227 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100228 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000229 select ICST
Russell King13edd862010-01-15 21:49:23 +0000230 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000231 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100238 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000239 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000240 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100241 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100242 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000243 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000244 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100245 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 help
247 This enables support for ARM Ltd RealView boards.
248
249config ARCH_VERSATILE
250 bool "ARM Ltd. Versatile family"
251 select ARM_AMBA
252 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100253 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000254 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000255 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100256 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100257 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000258 select PLAT_VERSATILE
Russell 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
366 select COMMON_CLKDEV
367 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"
460 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300461 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300462 select GENERIC_CLOCKEVENTS
463 select PLAT_ORION
464 help
465 Support for the Marvell Dove SoC 88AP510
466
Saeed Bishara651c74c2008-06-22 22:45:06 +0200467config ARCH_KIRKWOOD
468 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200470 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700471 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200472 select GENERIC_CLOCKEVENTS
473 select PLAT_ORION
474 help
475 Support for the following Marvell Kirkwood series SoCs:
476 88F6180, 88F6192 and 88F6281.
477
Russell King788c9702009-04-26 14:21:59 +0100478config ARCH_LOKI
479 bool "Marvell Loki (88RC8480)"
480 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100481 select GENERIC_CLOCKEVENTS
482 select PLAT_ORION
483 help
484 Support for the Marvell Loki (88RC8480) SoC.
485
Kevin Wells40805942010-07-27 08:49:04 -0700486config ARCH_LPC32XX
487 bool "NXP LPC32XX"
488 select CPU_ARM926T
489 select ARCH_REQUIRE_GPIOLIB
490 select HAVE_IDE
491 select ARM_AMBA
492 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100493 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700494 select GENERIC_TIME
495 select GENERIC_CLOCKEVENTS
496 help
497 Support for the NXP LPC32XX family of processors
498
Russell King788c9702009-04-26 14:21:59 +0100499config ARCH_MV78XX0
500 bool "Marvell MV78xx0"
501 select CPU_FEROCEON
502 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700503 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100504 select GENERIC_CLOCKEVENTS
505 select PLAT_ORION
506 help
507 Support for the following Marvell MV78xx0 series SoCs:
508 MV781x0, MV782x0.
509
510config ARCH_ORION5X
511 bool "Marvell Orion"
512 depends on MMU
513 select CPU_FEROCEON
514 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700515 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100516 select GENERIC_CLOCKEVENTS
517 select PLAT_ORION
518 help
519 Support for the following Marvell Orion 5x series SoCs:
520 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
521 Orion-2 (5281), Orion-1-90 (6183).
522
523config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500524 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100525 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100526 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100527 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100528 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000529 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100530 select TICK_ONESHOT
531 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400532 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100533 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500534 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100535
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100536config ARCH_KS8695
537 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000538 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100539 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000540 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100541 help
542 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
543 System-on-Chip devices.
544
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100545config ARCH_NS9XXX
546 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000547 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100548 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100549 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700550 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100551 help
552 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
553 System.
554
555 <http://www.digi.com/products/microprocessors/index.jsp>
556
Russell King788c9702009-04-26 14:21:59 +0100557config ARCH_W90X900
558 bool "Nuvoton W90X900 CPU"
559 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100560 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100561 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100562 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200563 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100564 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
565 At present, the w90x900 has been renamed nuc900, regarding
566 the ARM series product line, you can login the following
567 link address to know more.
568
569 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
570 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400571
wanzongshuna62e9032009-12-31 15:06:05 +0100572config ARCH_NUC93X
573 bool "Nuvoton NUC93X CPU"
574 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100575 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100576 help
577 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
578 low-power and high performance MPEG-4/JPEG multimedia controller chip.
579
Erik Gillingc5f80062010-01-21 16:53:02 -0800580config ARCH_TEGRA
581 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000582 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800583 select GENERIC_TIME
584 select GENERIC_CLOCKEVENTS
585 select GENERIC_GPIO
586 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000587 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800588 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700589 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800590 help
591 This enables support for NVIDIA Tegra based systems (Tegra APX,
592 Tegra 6xx and Tegra 2 series).
593
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100594config ARCH_PNX4008
595 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000596 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100597 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000598 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100599 help
600 This enables support for Philips PNX4008 mobile platform.
601
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700603 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100604 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500605 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100606 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100607 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700608 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100609 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000610 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000611 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800612 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800613 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000614 help
eric miao2c8086a2007-09-11 19:13:17 -0700615 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616
Russell King788c9702009-04-26 14:21:59 +0100617config ARCH_MSM
618 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500619 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800620 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700621 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800622 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800623 Support for Qualcomm MSM/QSD based systems. This runs on the
624 apps processor of the MSM/QSD and depends on a shared memory
625 interface to the modem processor which runs the baseband
626 stack and controls some vital subsystems
627 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800628
Magnus Dammc793c1b2010-02-05 11:14:49 +0000629config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900630 bool "Renesas SH-Mobile / R-Mobile"
631 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900632 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900633 select GENERIC_CLOCKEVENTS
634 select NO_IOPORT
635 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000636 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000637 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900638 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000639
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640config ARCH_RPC
641 bool "RiscPC"
642 select ARCH_ACORN
643 select FIQ
644 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100645 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100646 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000647 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000648 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100649 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000650 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 help
652 On the Acorn Risc-PC, Linux can support the internal IDE disk and
653 CD-ROM interface, serial and parallel port, and the floppy drive.
654
655config ARCH_SA1100
656 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000657 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100658 select ISA
Russell King05944d72006-11-30 20:43:51 +0000659 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500660 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100661 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000662 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100663 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700664 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000665 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100666 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700667 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000668 help
669 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670
671config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900672 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800673 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100674 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700675 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900677 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
680 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000681 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682
Ben Dooks63b1f512010-04-30 16:32:26 +0900683 Note, the S3C2416 and the S3C2450 are so close that they even share
684 the same SoC ID code. This means that there is no seperate machine
685 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
686
Ben Dooksa08ab632008-10-21 14:06:39 +0100687config ARCH_S3C64XX
688 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000689 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900690 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900691 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100692 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900693 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000694 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100695 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900696 select ARCH_REQUIRE_GPIOLIB
697 select SAMSUNG_CLKSRC
698 select SAMSUNG_IRQ_VIC_TIMER
699 select SAMSUNG_IRQ_UART
700 select S3C_GPIO_TRACK
701 select S3C_GPIO_PULL_UPDOWN
702 select S3C_GPIO_CFG_S3C24XX
703 select S3C_GPIO_CFG_S3C64XX
704 select S3C_DEV_NAND
705 select USB_ARCH_HAS_OHCI
706 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900707 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100709 help
710 Samsung S3C64XX series based systems
711
Kukjin Kim49b7a492010-09-07 15:47:18 +0900712config ARCH_S5P64X0
713 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900714 select CPU_V6
715 select GENERIC_GPIO
716 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900717 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900718 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900719 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900720 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900721 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900722 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
723 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900724
Kukjin Kim550db7f2010-01-29 10:19:26 +0900725config ARCH_S5P6442
726 bool "Samsung S5P6442"
727 select CPU_V6
728 select GENERIC_GPIO
729 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900730 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900731 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900732 help
733 Samsung S5P6442 CPU based systems
734
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200735config ARCH_S5PC100
736 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900737 select GENERIC_GPIO
738 select HAVE_CLK
739 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100740 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900741 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900742 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900743 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900744 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900745 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200746 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900747
Kukjin Kim170f4e42010-02-24 16:40:44 +0900748config ARCH_S5PV210
749 bool "Samsung S5PV210/S5PC110"
750 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900751 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900752 select GENERIC_GPIO
753 select HAVE_CLK
754 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900755 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900756 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900757 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900758 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900759 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900760 help
761 Samsung S5PV210/S5PC110 series based systems
762
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900763config ARCH_S5PV310
764 bool "Samsung S5PV310/S5PC210"
765 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900766 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900767 select GENERIC_GPIO
768 select HAVE_CLK
769 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900770 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900771 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900772 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900773 help
774 Samsung S5PV310 series based systems
775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776config ARCH_SHARK
777 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000778 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100779 select ISA
780 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100781 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100782 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000783 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000784 help
785 Support for the StrongARM based Digital DNARD machine, also known
786 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787
Hans J. Koch83ef3332010-09-17 18:13:56 +0200788config ARCH_TCC_926
789 bool "Telechips TCC ARM926-based systems"
790 select CPU_ARM926T
791 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100792 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200793 select GENERIC_CLOCKEVENTS
794 help
795 Support for Telechips TCC ARM926-based systems.
796
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797config ARCH_LH7A40X
798 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000799 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100800 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000801 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802 help
803 Say Y here for systems based on one of the Sharp LH7A40X
804 System on a Chip processors. These CPUs include an ARM922T
805 core with a wide array of integrated devices for
806 hand-held and low-power applications.
807
Linus Walleijd98aac72009-04-27 10:21:46 +0100808config ARCH_U300
809 bool "ST-Ericsson U300 Series"
810 depends on MMU
811 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000812 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100813 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select ARM_AMBA
815 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100816 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100817 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100818 select GENERIC_GPIO
819 help
820 Support for ST-Ericsson U300 series mobile platforms.
821
Russell Kingccf50e22010-03-15 19:03:06 +0000822config ARCH_U8500
823 bool "ST-Ericsson U8500 Series"
824 select CPU_V7
825 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000826 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100827 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100828 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100829 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000830 help
831 Support for ST-Ericsson's Ux500 architecture
832
833config ARCH_NOMADIK
834 bool "STMicroelectronics Nomadik"
835 select ARM_AMBA
836 select ARM_VIC
837 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100838 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000839 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000840 select ARCH_REQUIRE_GPIOLIB
841 help
842 Support for the Nomadik platform by ST-Ericsson
843
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100844config ARCH_DAVINCI
845 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100846 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700847 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100848 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700849 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100850 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700851 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530852 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100853 help
854 Support for TI's DaVinci platform.
855
Russell King3b938be2007-05-12 11:25:44 +0100856config ARCH_OMAP
857 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700858 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700859 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100860 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700861 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000862 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800863 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100864 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200865 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100866
viresh kumarcee37e52010-04-01 12:31:05 +0100867config PLAT_SPEAR
868 bool "ST SPEAr"
869 select ARM_AMBA
870 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100871 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100872 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100873 select HAVE_CLK
874 help
875 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877endchoice
878
Russell Kingccf50e22010-03-15 19:03:06 +0000879#
880# This is sorted alphabetically by mach-* pathname. However, plat-*
881# Kconfigs may be included either alphabetically (according to the
882# plat- suffix) or along side the corresponding mach-* source.
883#
Russell King95b8f202010-01-14 11:43:54 +0000884source "arch/arm/mach-aaec2000/Kconfig"
885
886source "arch/arm/mach-at91/Kconfig"
887
888source "arch/arm/mach-bcmring/Kconfig"
889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890source "arch/arm/mach-clps711x/Kconfig"
891
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300892source "arch/arm/mach-cns3xxx/Kconfig"
893
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-davinci/Kconfig"
895
896source "arch/arm/mach-dove/Kconfig"
897
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000898source "arch/arm/mach-ep93xx/Kconfig"
899
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900source "arch/arm/mach-footbridge/Kconfig"
901
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200902source "arch/arm/mach-gemini/Kconfig"
903
Russell King95b8f202010-01-14 11:43:54 +0000904source "arch/arm/mach-h720x/Kconfig"
905
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906source "arch/arm/mach-integrator/Kconfig"
907
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100908source "arch/arm/mach-iop32x/Kconfig"
909
910source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Dan Williams285f5fa2006-12-07 02:59:39 +0100912source "arch/arm/mach-iop13xx/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-ixp4xx/Kconfig"
915
916source "arch/arm/mach-ixp2000/Kconfig"
917
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100918source "arch/arm/mach-ixp23xx/Kconfig"
919
Russell King95b8f202010-01-14 11:43:54 +0000920source "arch/arm/mach-kirkwood/Kconfig"
921
922source "arch/arm/mach-ks8695/Kconfig"
923
924source "arch/arm/mach-lh7a40x/Kconfig"
925
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200926source "arch/arm/mach-loki/Kconfig"
927
Kevin Wells40805942010-07-27 08:49:04 -0700928source "arch/arm/mach-lpc32xx/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-msm/Kconfig"
931
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200932source "arch/arm/mach-mv78xx0/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800936source "arch/arm/mach-mxs/Kconfig"
937
Russell King95b8f202010-01-14 11:43:54 +0000938source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/mach-nomadik/Kconfig"
941source "arch/arm/plat-nomadik/Kconfig"
942
943source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
Russell Kingd91a89102010-02-04 18:13:17 +0000945source "arch/arm/mach-nuc93x/Kconfig"
946
Tony Lindgrend48af152005-07-10 19:58:17 +0100947source "arch/arm/plat-omap/Kconfig"
948
949source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
Tony Lindgren1dbae812005-11-10 14:26:51 +0000951source "arch/arm/mach-omap2/Kconfig"
952
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400953source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-pxa/Kconfig"
956source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-mmp/Kconfig"
959
960source "arch/arm/mach-realview/Kconfig"
961
962source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300963
Ben Dookscf383672009-11-10 00:14:58 +0000964source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100965source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900966source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100967
viresh kumarcee37e52010-04-01 12:31:05 +0100968source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969
Hans J. Koch83ef3332010-09-17 18:13:56 +0200970source "arch/arm/plat-tcc/Kconfig"
971
Ben Dooksa21765a2007-02-11 18:31:01 +0100972if ARCH_S3C2410
973source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100975source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900976source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100977source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100978source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Ben Dooksa08ab632008-10-21 14:06:39 +0100981if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900982source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100983endif
984
Kukjin Kim49b7a492010-09-07 15:47:18 +0900985source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900986
Kukjin Kim550db7f2010-01-29 10:19:26 +0900987source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100988
Byungho Min5a7652f2009-06-23 21:39:42 +0900989source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900990
Kukjin Kim170f4e42010-02-24 16:40:44 +0900991source "arch/arm/mach-s5pv210/Kconfig"
992
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900993source "arch/arm/mach-s5pv310/Kconfig"
994
Russell King882d01f2010-03-02 23:40:15 +0000995source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996
Russell King882d01f2010-03-02 23:40:15 +0000997source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800998
Erik Gillingc5f80062010-01-21 16:53:02 -0800999source "arch/arm/mach-tegra/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001002
Russell King95b8f202010-01-14 11:43:54 +00001003source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
1005source "arch/arm/mach-versatile/Kconfig"
1006
Russell Kingceade892010-02-11 21:44:53 +00001007source "arch/arm/mach-vexpress/Kconfig"
1008
wanzongshun7ec80dd2008-12-03 03:55:38 +01001009source "arch/arm/mach-w90x900/Kconfig"
1010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011# Definitions to make life easier
1012config ARCH_ACORN
1013 bool
1014
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001015config PLAT_IOP
1016 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001017 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001018 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001019
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001020config PLAT_ORION
1021 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001022 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001023
Eric Miaobd5ce432009-01-20 12:06:01 +08001024config PLAT_PXA
1025 bool
1026
Russell Kingf4b8b312010-01-14 12:48:06 +00001027config PLAT_VERSATILE
1028 bool
1029
Russell Kinge3887712010-01-14 13:30:16 +00001030config ARM_TIMER_SP804
1031 bool
1032
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033source arch/arm/mm/Kconfig
1034
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001035config IWMMXT
1036 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001037 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1038 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001039 help
1040 Enable support for iWMMXt context switching at run time if
1041 running on a CPU that supports it.
1042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1044config XSCALE_PMU
1045 bool
1046 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1047 default y
1048
Jamie Iles0f4f0672010-02-02 20:23:15 +01001049config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001050 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1051 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001052 default y
1053 bool
1054
eric miao52108642010-12-13 09:42:34 +01001055config MULTI_IRQ_HANDLER
1056 bool
1057 help
1058 Allow each machine to specify it's own IRQ handler at run time.
1059
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001060if !MMU
1061source "arch/arm/Kconfig-nommu"
1062endif
1063
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001064config ARM_ERRATA_411920
1065 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001066 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001067 help
1068 Invalidation of the Instruction Cache operation can
1069 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1070 It does not affect the MPCore. This option enables the ARM Ltd.
1071 recommended workaround.
1072
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001073config ARM_ERRATA_430973
1074 bool "ARM errata: Stale prediction on replaced interworking branch"
1075 depends on CPU_V7
1076 help
1077 This option enables the workaround for the 430973 Cortex-A8
1078 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1079 interworking branch is replaced with another code sequence at the
1080 same virtual address, whether due to self-modifying code or virtual
1081 to physical address re-mapping, Cortex-A8 does not recover from the
1082 stale interworking branch prediction. This results in Cortex-A8
1083 executing the new code sequence in the incorrect ARM or Thumb state.
1084 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1085 and also flushes the branch target cache at every context switch.
1086 Note that setting specific bits in the ACTLR register may not be
1087 available in non-secure mode.
1088
Catalin Marinas855c5512009-04-30 17:06:15 +01001089config ARM_ERRATA_458693
1090 bool "ARM errata: Processor deadlock when a false hazard is created"
1091 depends on CPU_V7
1092 help
1093 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1094 erratum. For very specific sequences of memory operations, it is
1095 possible for a hazard condition intended for a cache line to instead
1096 be incorrectly associated with a different cache line. This false
1097 hazard might then cause a processor deadlock. The workaround enables
1098 the L1 caching of the NEON accesses and disables the PLD instruction
1099 in the ACTLR register. Note that setting specific bits in the ACTLR
1100 register may not be available in non-secure mode.
1101
Catalin Marinas0516e462009-04-30 17:06:20 +01001102config ARM_ERRATA_460075
1103 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1104 depends on CPU_V7
1105 help
1106 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1107 erratum. Any asynchronous access to the L2 cache may encounter a
1108 situation in which recent store transactions to the L2 cache are lost
1109 and overwritten with stale memory contents from external memory. The
1110 workaround disables the write-allocate mode for the L2 cache via the
1111 ACTLR register. Note that setting specific bits in the ACTLR register
1112 may not be available in non-secure mode.
1113
Will Deacon9f050272010-09-14 09:51:43 +01001114config ARM_ERRATA_742230
1115 bool "ARM errata: DMB operation may be faulty"
1116 depends on CPU_V7 && SMP
1117 help
1118 This option enables the workaround for the 742230 Cortex-A9
1119 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1120 between two write operations may not ensure the correct visibility
1121 ordering of the two writes. This workaround sets a specific bit in
1122 the diagnostic register of the Cortex-A9 which causes the DMB
1123 instruction to behave as a DSB, ensuring the correct behaviour of
1124 the two writes.
1125
Will Deacona672e992010-09-14 09:53:02 +01001126config ARM_ERRATA_742231
1127 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1128 depends on CPU_V7 && SMP
1129 help
1130 This option enables the workaround for the 742231 Cortex-A9
1131 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1132 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1133 accessing some data located in the same cache line, may get corrupted
1134 data due to bad handling of the address hazard when the line gets
1135 replaced from one of the CPUs at the same time as another CPU is
1136 accessing it. This workaround sets specific bits in the diagnostic
1137 register of the Cortex-A9 which reduces the linefill issuing
1138 capabilities of the processor.
1139
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001140config PL310_ERRATA_588369
1141 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1142 depends on CACHE_L2X0 && ARCH_OMAP4
1143 help
1144 The PL310 L2 cache controller implements three types of Clean &
1145 Invalidate maintenance operations: by Physical Address
1146 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1147 They are architecturally defined to behave as the execution of a
1148 clean operation followed immediately by an invalidate operation,
1149 both performing to the same memory location. This functionality
1150 is not correctly implemented in PL310 as clean lines are not
1151 invalidated as a result of these operations. Note that this errata
1152 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001153
1154config ARM_ERRATA_720789
1155 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1156 depends on CPU_V7 && SMP
1157 help
1158 This option enables the workaround for the 720789 Cortex-A9 (prior to
1159 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1160 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1161 As a consequence of this erratum, some TLB entries which should be
1162 invalidated are not, resulting in an incoherency in the system page
1163 tables. The workaround changes the TLB flushing routines to invalidate
1164 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001165
1166config ARM_ERRATA_743622
1167 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1168 depends on CPU_V7
1169 help
1170 This option enables the workaround for the 743622 Cortex-A9
1171 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1172 optimisation in the Cortex-A9 Store Buffer may lead to data
1173 corruption. This workaround sets a specific bit in the diagnostic
1174 register of the Cortex-A9 which disables the Store Buffer
1175 optimisation, preventing the defect from occurring. This has no
1176 visible impact on the overall performance or power consumption of the
1177 processor.
1178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179endmenu
1180
1181source "arch/arm/common/Kconfig"
1182
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183menu "Bus support"
1184
1185config ARM_AMBA
1186 bool
1187
1188config ISA
1189 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 help
1191 Find out whether you have ISA slots on your motherboard. ISA is the
1192 name of a bus system, i.e. the way the CPU talks to the other stuff
1193 inside your box. Other bus systems are PCI, EISA, MicroChannel
1194 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1195 newer boards don't support it. If you have ISA, say Y, otherwise N.
1196
Russell King065909b2006-01-04 15:44:16 +00001197# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198config ISA_DMA
1199 bool
Russell King065909b2006-01-04 15:44:16 +00001200 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201
Russell King065909b2006-01-04 15:44:16 +00001202# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001203config ISA_DMA_API
1204 bool
Al Viro5cae8412005-05-04 05:39:22 +01001205
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001207 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 help
1209 Find out whether you have a PCI motherboard. PCI is the name of a
1210 bus system, i.e. the way the CPU talks to the other stuff inside
1211 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1212 VESA. If you have PCI, say Y, otherwise N.
1213
Anton Vorontsov52882172010-04-19 13:20:49 +01001214config PCI_DOMAINS
1215 bool
1216 depends on PCI
1217
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001218config PCI_NANOENGINE
1219 bool "BSE nanoEngine PCI support"
1220 depends on SA1100_NANOENGINE
1221 help
1222 Enable PCI on the BSE nanoEngine board.
1223
Matthew Wilcox36e23592007-07-10 10:54:40 -06001224config PCI_SYSCALL
1225 def_bool PCI
1226
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227# Select the host bridge type
1228config PCI_HOST_VIA82C505
1229 bool
1230 depends on PCI && ARCH_SHARK
1231 default y
1232
Mike Rapoporta0113a92007-11-25 08:55:34 +01001233config PCI_HOST_ITE8152
1234 bool
1235 depends on PCI && MACH_ARMCORE
1236 default y
1237 select DMABOUNCE
1238
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239source "drivers/pci/Kconfig"
1240
1241source "drivers/pcmcia/Kconfig"
1242
1243endmenu
1244
1245menu "Kernel Features"
1246
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001247source "kernel/time/Kconfig"
1248
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249config SMP
1250 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001251 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001252 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001253 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001254 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1255 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001256 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001257 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001258 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 help
1260 This enables support for systems with more than one CPU. If you have
1261 a system with only one CPU, like most personal computers, say N. If
1262 you have a system with more than one CPU, say Y.
1263
1264 If you say N here, the kernel will run on single and multiprocessor
1265 machines, but will use only one CPU of a multiprocessor machine. If
1266 you say Y here, the kernel will run on many, but not all, single
1267 processor machines. On a single processor machine, the kernel will
1268 run faster if you say N here.
1269
Adrian Bunk03502fa2008-02-03 15:50:21 +02001270 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001272 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273
1274 If you don't know what to do here, say N.
1275
Russell Kingf00ec482010-09-04 10:47:48 +01001276config SMP_ON_UP
1277 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1278 depends on EXPERIMENTAL
Dave Martined3768a2010-12-01 15:39:23 +01001279 depends on SMP && !XIP
Russell Kingf00ec482010-09-04 10:47:48 +01001280 default y
1281 help
1282 SMP kernels contain instructions which fail on non-SMP processors.
1283 Enabling this option allows the kernel to modify itself to make
1284 these instructions safe. Disabling it allows about 1K of space
1285 savings.
1286
1287 If you don't know what to do here, say Y.
1288
Russell Kinga8cbcd92009-05-16 11:51:14 +01001289config HAVE_ARM_SCU
1290 bool
1291 depends on SMP
1292 help
1293 This option enables support for the ARM system coherency unit
1294
Russell Kingf32f4ce2009-05-16 12:14:21 +01001295config HAVE_ARM_TWD
1296 bool
1297 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001298 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001299 help
1300 This options enables support for the ARM timer and watchdog unit
1301
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001302choice
1303 prompt "Memory split"
1304 default VMSPLIT_3G
1305 help
1306 Select the desired split between kernel and user memory.
1307
1308 If you are not absolutely sure what you are doing, leave this
1309 option alone!
1310
1311 config VMSPLIT_3G
1312 bool "3G/1G user/kernel split"
1313 config VMSPLIT_2G
1314 bool "2G/2G user/kernel split"
1315 config VMSPLIT_1G
1316 bool "1G/3G user/kernel split"
1317endchoice
1318
1319config PAGE_OFFSET
1320 hex
1321 default 0x40000000 if VMSPLIT_1G
1322 default 0x80000000 if VMSPLIT_2G
1323 default 0xC0000000
1324
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325config NR_CPUS
1326 int "Maximum number of CPUs (2-32)"
1327 range 2 32
1328 depends on SMP
1329 default "4"
1330
Russell Kinga054a812005-11-02 22:24:33 +00001331config HOTPLUG_CPU
1332 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1333 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001334 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001335 help
1336 Say Y here to experiment with turning CPUs off and on. CPUs
1337 can be controlled through /sys/devices/system/cpu.
1338
Russell King37ee16a2005-11-08 19:08:05 +00001339config LOCAL_TIMERS
1340 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001341 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001342 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001343 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001344 help
1345 Enable support for local timers on SMP platforms, rather then the
1346 legacy IPI broadcast method. Local timers allows the system
1347 accounting to be spread across the timer interval, preventing a
1348 "thundering herd" at every timer tick.
1349
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001350source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351
Russell Kingf8065812006-03-02 22:41:59 +00001352config HZ
1353 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001354 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001355 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001356 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001357 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001358 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001359 default 100
1360
Catalin Marinas16c79652009-07-24 12:33:02 +01001361config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001362 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001363 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001364 select AEABI
1365 select ARM_ASM_UNIFIED
1366 help
1367 By enabling this option, the kernel will be compiled in
1368 Thumb-2 mode. A compiler/assembler that understand the unified
1369 ARM-Thumb syntax is needed.
1370
1371 If unsure, say N.
1372
Catalin Marinas0becb082009-07-24 12:32:53 +01001373config ARM_ASM_UNIFIED
1374 bool
1375
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001376config AEABI
1377 bool "Use the ARM EABI to compile the kernel"
1378 help
1379 This option allows for the kernel to be compiled using the latest
1380 ARM ABI (aka EABI). This is only useful if you are using a user
1381 space environment that is also compiled with EABI.
1382
1383 Since there are major incompatibilities between the legacy ABI and
1384 EABI, especially with regard to structure member alignment, this
1385 option also changes the kernel syscall calling convention to
1386 disambiguate both ABIs and allow for backward compatibility support
1387 (selected with CONFIG_OABI_COMPAT).
1388
1389 To use this you need GCC version 4.0.0 or later.
1390
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001391config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001392 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001393 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001394 default y
1395 help
1396 This option preserves the old syscall interface along with the
1397 new (ARM EABI) one. It also provides a compatibility layer to
1398 intercept syscalls that have structure arguments which layout
1399 in memory differs between the legacy ABI and the new ARM EABI
1400 (only for non "thumb" binaries). This option adds a tiny
1401 overhead to all syscalls and produces a slightly larger kernel.
1402 If you know you'll be using only pure EABI user space then you
1403 can say N here. If this option is not selected and you attempt
1404 to execute a legacy ABI binary then the result will be
1405 UNPREDICTABLE (in fact it can be predicted that it won't work
1406 at all). If in doubt say Y.
1407
Mel Gormaneb335752009-05-13 17:34:48 +01001408config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001409 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001410
Russell King05944d72006-11-30 20:43:51 +00001411config ARCH_SPARSEMEM_ENABLE
1412 bool
1413
Russell King07a2f732008-10-01 21:39:58 +01001414config ARCH_SPARSEMEM_DEFAULT
1415 def_bool ARCH_SPARSEMEM_ENABLE
1416
Russell King05944d72006-11-30 20:43:51 +00001417config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001418 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001419
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001420config HIGHMEM
1421 bool "High Memory Support (EXPERIMENTAL)"
1422 depends on MMU && EXPERIMENTAL
1423 help
1424 The address space of ARM processors is only 4 Gigabytes large
1425 and it has to accommodate user address space, kernel address
1426 space as well as some memory mapped IO. That means that, if you
1427 have a large amount of physical memory and/or IO, not all of the
1428 memory can be "permanently mapped" by the kernel. The physical
1429 memory that is not permanently mapped is called "high memory".
1430
1431 Depending on the selected kernel/user memory split, minimum
1432 vmalloc space and actual amount of RAM, you may not need this
1433 option which should result in a slightly faster kernel.
1434
1435 If unsure, say n.
1436
Russell King65cec8e2009-08-17 20:02:06 +01001437config HIGHPTE
1438 bool "Allocate 2nd-level pagetables from highmem"
1439 depends on HIGHMEM
1440 depends on !OUTER_CACHE
1441
Jamie Iles1b8873a2010-02-02 20:25:44 +01001442config HW_PERF_EVENTS
1443 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001444 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001445 default y
1446 help
1447 Enable hardware performance counter support for perf events. If
1448 disabled, perf events will use software events only.
1449
Dave Hansen3f22ab22005-06-23 00:07:43 -07001450source "mm/Kconfig"
1451
Magnus Dammc1b2d972010-07-05 10:00:11 +01001452config FORCE_MAX_ZONEORDER
1453 int "Maximum zone order" if ARCH_SHMOBILE
1454 range 11 64 if ARCH_SHMOBILE
1455 default "9" if SA1111
1456 default "11"
1457 help
1458 The kernel memory allocator divides physically contiguous memory
1459 blocks into "zones", where each zone is a power of two number of
1460 pages. This option selects the largest power of two that the kernel
1461 keeps in the memory allocator. If you need to allocate very large
1462 blocks of physically contiguous memory, then you may need to
1463 increase this value.
1464
1465 This config option is actually maximum order plus one. For example,
1466 a value of 11 means that the largest free memory block is 2^10 pages.
1467
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468config LEDS
1469 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001470 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001471 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1473 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001474 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001475 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001476 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 help
1478 If you say Y here, the LEDs on your machine will be used
1479 to provide useful information about your current system status.
1480
1481 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1482 be able to select which LEDs are active using the options below. If
1483 you are compiling a kernel for the EBSA-110 or the LART however, the
1484 red LED will simply flash regularly to indicate that the system is
1485 still functional. It is safe to say Y here if you have a CATS
1486 system, but the driver will do nothing.
1487
1488config LEDS_TIMER
1489 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001490 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1491 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001493 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494 default y if ARCH_EBSA110
1495 help
1496 If you say Y here, one of the system LEDs (the green one on the
1497 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1498 will flash regularly to indicate that the system is still
1499 operational. This is mainly useful to kernel hackers who are
1500 debugging unstable kernels.
1501
1502 The LART uses the same LED for both Timer LED and CPU usage LED
1503 functions. You may choose to use both, but the Timer LED function
1504 will overrule the CPU usage LED.
1505
1506config LEDS_CPU
1507 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001508 !ARCH_OMAP) \
1509 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1510 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001511 depends on LEDS
1512 help
1513 If you say Y here, the red LED will be used to give a good real
1514 time indication of CPU usage, by lighting whenever the idle task
1515 is not currently executing.
1516
1517 The LART uses the same LED for both Timer LED and CPU usage LED
1518 functions. You may choose to use both, but the Timer LED function
1519 will overrule the CPU usage LED.
1520
1521config ALIGNMENT_TRAP
1522 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001523 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001525 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001527 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1529 address divisible by 4. On 32-bit ARM processors, these non-aligned
1530 fetch/store instructions will be emulated in software if you say
1531 here, which has a severe performance impact. This is necessary for
1532 correct operation of some network protocols. With an IP-only
1533 configuration it is safe to say N, otherwise say Y.
1534
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001535config UACCESS_WITH_MEMCPY
1536 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1537 depends on MMU && EXPERIMENTAL
1538 default y if CPU_FEROCEON
1539 help
1540 Implement faster copy_to_user and clear_user methods for CPU
1541 cores where a 8-word STM instruction give significantly higher
1542 memory write throughput than a sequence of individual 32bit stores.
1543
1544 A possible side effect is a slight increase in scheduling latency
1545 between threads sharing the same address space if they invoke
1546 such copy operations with large buffers.
1547
1548 However, if the CPU data cache is using a write-allocate mode,
1549 this option is unlikely to provide any performance gain.
1550
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001551config SECCOMP
1552 bool
1553 prompt "Enable seccomp to safely compute untrusted bytecode"
1554 ---help---
1555 This kernel feature is useful for number crunching applications
1556 that may need to compute untrusted bytecode during their
1557 execution. By using pipes or other transports made available to
1558 the process as file descriptors supporting the read/write
1559 syscalls, it's possible to isolate those applications in
1560 their own address space using seccomp. Once seccomp is
1561 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1562 and the task is only allowed to execute a few safe syscalls
1563 defined by each seccomp mode.
1564
Nicolas Pitrec743f382010-05-24 23:55:42 -04001565config CC_STACKPROTECTOR
1566 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001567 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001568 help
1569 This option turns on the -fstack-protector GCC feature. This
1570 feature puts, at the beginning of functions, a canary value on
1571 the stack just before the return address, and validates
1572 the value just before actually returning. Stack based buffer
1573 overflows (that need to overwrite this return address) now also
1574 overwrite the canary, which gets detected and the attack is then
1575 neutralized via a kernel panic.
1576 This feature requires gcc version 4.2 or above.
1577
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001578config DEPRECATED_PARAM_STRUCT
1579 bool "Provide old way to pass kernel parameters"
1580 help
1581 This was deprecated in 2001 and announced to live on for 5 years.
1582 Some old boot loaders still use this way.
1583
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584endmenu
1585
1586menu "Boot options"
1587
1588# Compressed boot loader in ROM. Yes, we really want to ask about
1589# TEXT and BSS so we preserve their values in the config files.
1590config ZBOOT_ROM_TEXT
1591 hex "Compressed ROM boot loader base address"
1592 default "0"
1593 help
1594 The physical address at which the ROM-able zImage is to be
1595 placed in the target. Platforms which normally make use of
1596 ROM-able zImage formats normally set this to a suitable
1597 value in their defconfig file.
1598
1599 If ZBOOT_ROM is not enabled, this has no effect.
1600
1601config ZBOOT_ROM_BSS
1602 hex "Compressed ROM boot loader BSS address"
1603 default "0"
1604 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001605 The base address of an area of read/write memory in the target
1606 for the ROM-able zImage which must be available while the
1607 decompressor is running. It must be large enough to hold the
1608 entire decompressed kernel plus an additional 128 KiB.
1609 Platforms which normally make use of ROM-able zImage formats
1610 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611
1612 If ZBOOT_ROM is not enabled, this has no effect.
1613
1614config ZBOOT_ROM
1615 bool "Compressed boot loader in ROM/flash"
1616 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1617 help
1618 Say Y here if you intend to execute your compressed kernel image
1619 (zImage) directly from ROM or flash. If unsure, say N.
1620
1621config CMDLINE
1622 string "Default kernel command string"
1623 default ""
1624 help
1625 On some architectures (EBSA110 and CATS), there is currently no way
1626 for the boot loader to pass arguments to the kernel. For these
1627 architectures, you should supply some command-line options at build
1628 time by entering them here. As a minimum, you should specify the
1629 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1630
Alexander Holler92d20402010-02-16 19:04:53 +01001631config CMDLINE_FORCE
1632 bool "Always use the default kernel command string"
1633 depends on CMDLINE != ""
1634 help
1635 Always use the default kernel command string, even if the boot
1636 loader passes other arguments to the kernel.
1637 This is useful if you cannot or don't want to change the
1638 command-line options your boot loader passes to the kernel.
1639
1640 If unsure, say N.
1641
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642config XIP_KERNEL
1643 bool "Kernel Execute-In-Place from ROM"
1644 depends on !ZBOOT_ROM
1645 help
1646 Execute-In-Place allows the kernel to run from non-volatile storage
1647 directly addressable by the CPU, such as NOR flash. This saves RAM
1648 space since the text section of the kernel is not loaded from flash
1649 to RAM. Read-write sections, such as the data section and stack,
1650 are still copied to RAM. The XIP kernel is not compressed since
1651 it has to run directly from flash, so it will take more space to
1652 store it. The flash address used to link the kernel object files,
1653 and for storing it, is configuration dependent. Therefore, if you
1654 say Y here, you must know the proper physical address where to
1655 store the kernel image depending on your own flash memory usage.
1656
1657 Also note that the make target becomes "make xipImage" rather than
1658 "make zImage" or "make Image". The final kernel binary to put in
1659 ROM memory will be arch/arm/boot/xipImage.
1660
1661 If unsure, say N.
1662
1663config XIP_PHYS_ADDR
1664 hex "XIP Kernel Physical Location"
1665 depends on XIP_KERNEL
1666 default "0x00080000"
1667 help
1668 This is the physical address in your flash memory the kernel will
1669 be linked for and stored to. This address is dependent on your
1670 own flash usage.
1671
Richard Purdiec587e4a2007-02-06 21:29:00 +01001672config KEXEC
1673 bool "Kexec system call (EXPERIMENTAL)"
1674 depends on EXPERIMENTAL
1675 help
1676 kexec is a system call that implements the ability to shutdown your
1677 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001678 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001679 you can start any kernel with it, not just Linux.
1680
1681 It is an ongoing process to be certain the hardware in a machine
1682 is properly shutdown, so do not be surprised if this code does not
1683 initially work for you. It may help to enable device hotplugging
1684 support.
1685
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001686config ATAGS_PROC
1687 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001688 depends on KEXEC
1689 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001690 help
1691 Should the atags used to boot the kernel be exported in an "atags"
1692 file in procfs. Useful with kexec.
1693
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001694config CRASH_DUMP
1695 bool "Build kdump crash kernel (EXPERIMENTAL)"
1696 depends on EXPERIMENTAL
1697 help
1698 Generate crash dump after being started by kexec. This should
1699 be normally only set in special crash dump kernels which are
1700 loaded in the main kernel with kexec-tools into a specially
1701 reserved region and then later executed after a crash by
1702 kdump/kexec. The crash dump kernel must be compiled to a
1703 memory address not used by the main kernel
1704
1705 For more details see Documentation/kdump/kdump.txt
1706
Eric Miaoe69edc792010-07-05 15:56:50 +02001707config AUTO_ZRELADDR
1708 bool "Auto calculation of the decompressed kernel image address"
1709 depends on !ZBOOT_ROM && !ARCH_U300
1710 help
1711 ZRELADDR is the physical address where the decompressed kernel
1712 image will be placed. If AUTO_ZRELADDR is selected, the address
1713 will be determined at run-time by masking the current IP with
1714 0xf8000000. This assumes the zImage being placed in the first 128MB
1715 from start of memory.
1716
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717endmenu
1718
Russell Kingac9d7ef2008-08-18 17:26:00 +01001719menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001720
Ben Dooks89c52ed2009-07-30 23:23:24 +01001721if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722
1723source "drivers/cpufreq/Kconfig"
1724
Yong Shen64f102b2010-10-21 21:18:59 +08001725config CPU_FREQ_IMX
1726 tristate "CPUfreq driver for i.MX CPUs"
1727 depends on ARCH_MXC && CPU_FREQ
1728 help
1729 This enables the CPUfreq driver for i.MX CPUs.
1730
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731config CPU_FREQ_SA1100
1732 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733
1734config CPU_FREQ_SA1110
1735 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736
1737config CPU_FREQ_INTEGRATOR
1738 tristate "CPUfreq driver for ARM Integrator CPUs"
1739 depends on ARCH_INTEGRATOR && CPU_FREQ
1740 default y
1741 help
1742 This enables the CPUfreq driver for ARM Integrator CPUs.
1743
1744 For details, take a look at <file:Documentation/cpu-freq>.
1745
1746 If in doubt, say Y.
1747
Russell King9e2697f2007-12-14 13:30:14 +00001748config CPU_FREQ_PXA
1749 bool
1750 depends on CPU_FREQ && ARCH_PXA && PXA25x
1751 default y
1752 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1753
Mark Brownb3748dd2009-06-15 11:23:20 +01001754config CPU_FREQ_S3C64XX
1755 bool "CPUfreq support for Samsung S3C64XX CPUs"
1756 depends on CPU_FREQ && CPU_S3C6410
1757
Ben Dooks9d56c022009-07-30 23:23:25 +01001758config CPU_FREQ_S3C
1759 bool
1760 help
1761 Internal configuration node for common cpufreq on Samsung SoC
1762
1763config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001764 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001765 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1766 select CPU_FREQ_S3C
1767 help
1768 This enables the CPUfreq driver for the Samsung S3C24XX family
1769 of CPUs.
1770
1771 For details, take a look at <file:Documentation/cpu-freq>.
1772
1773 If in doubt, say N.
1774
1775config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001776 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001777 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1778 help
1779 Compile in support for changing the PLL frequency from the
1780 S3C24XX series CPUfreq driver. The PLL takes time to settle
1781 after a frequency change, so by default it is not enabled.
1782
1783 This also means that the PLL tables for the selected CPU(s) will
1784 be built which may increase the size of the kernel image.
1785
1786config CPU_FREQ_S3C24XX_DEBUG
1787 bool "Debug CPUfreq Samsung driver core"
1788 depends on CPU_FREQ_S3C24XX
1789 help
1790 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1791
1792config CPU_FREQ_S3C24XX_IODEBUG
1793 bool "Debug CPUfreq Samsung driver IO timing"
1794 depends on CPU_FREQ_S3C24XX
1795 help
1796 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1797
Ben Dookse6d197a2009-07-30 23:23:42 +01001798config CPU_FREQ_S3C24XX_DEBUGFS
1799 bool "Export debugfs for CPUFreq"
1800 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1801 help
1802 Export status information via debugfs.
1803
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804endif
1805
Russell Kingac9d7ef2008-08-18 17:26:00 +01001806source "drivers/cpuidle/Kconfig"
1807
1808endmenu
1809
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810menu "Floating point emulation"
1811
1812comment "At least one emulation must be selected"
1813
1814config FPE_NWFPE
1815 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001816 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817 ---help---
1818 Say Y to include the NWFPE floating point emulator in the kernel.
1819 This is necessary to run most binaries. Linux does not currently
1820 support floating point hardware so you need to say Y here even if
1821 your machine has an FPA or floating point co-processor podule.
1822
1823 You may say N here if you are going to load the Acorn FPEmulator
1824 early in the bootup.
1825
1826config FPE_NWFPE_XP
1827 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001828 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829 help
1830 Say Y to include 80-bit support in the kernel floating-point
1831 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1832 Note that gcc does not generate 80-bit operations by default,
1833 so in most cases this option only enlarges the size of the
1834 floating point emulator without any good reason.
1835
1836 You almost surely want to say N here.
1837
1838config FPE_FASTFPE
1839 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001840 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001841 ---help---
1842 Say Y here to include the FAST floating point emulator in the kernel.
1843 This is an experimental much faster emulator which now also has full
1844 precision for the mantissa. It does not support any exceptions.
1845 It is very simple, and approximately 3-6 times faster than NWFPE.
1846
1847 It should be sufficient for most programs. It may be not suitable
1848 for scientific calculations, but you have to check this for yourself.
1849 If you do not feel you need a faster FP emulation you should better
1850 choose NWFPE.
1851
1852config VFP
1853 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001854 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855 help
1856 Say Y to include VFP support code in the kernel. This is needed
1857 if your hardware includes a VFP unit.
1858
1859 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1860 release notes and additional status information.
1861
1862 Say N if your target does not have VFP hardware.
1863
Catalin Marinas25ebee02007-09-25 15:22:24 +01001864config VFPv3
1865 bool
1866 depends on VFP
1867 default y if CPU_V7
1868
Catalin Marinasb5872db2008-01-10 19:16:17 +01001869config NEON
1870 bool "Advanced SIMD (NEON) Extension support"
1871 depends on VFPv3 && CPU_V7
1872 help
1873 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1874 Extension.
1875
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876endmenu
1877
1878menu "Userspace binary formats"
1879
1880source "fs/Kconfig.binfmt"
1881
1882config ARTHUR
1883 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001884 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885 help
1886 Say Y here to include the kernel code necessary if you want to run
1887 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1888 experimental; if this sounds frightening, say N and sleep in peace.
1889 You can also say M here to compile this support as a module (which
1890 will be called arthur).
1891
1892endmenu
1893
1894menu "Power management options"
1895
Russell Kingeceab4a2005-11-15 11:31:41 +00001896source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001897
Johannes Bergf4cb5702007-12-08 02:14:00 +01001898config ARCH_SUSPEND_POSSIBLE
1899 def_bool y
1900
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901endmenu
1902
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001903source "net/Kconfig"
1904
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001905source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906
1907source "fs/Kconfig"
1908
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909source "arch/arm/Kconfig.debug"
1910
1911source "security/Kconfig"
1912
1913source "crypto/Kconfig"
1914
1915source "lib/Kconfig"