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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
Adrian Bunk2064c942008-04-28 23:44:43 +02005 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01006 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08007 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00008 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +01009 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010010 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060011 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050012 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080013 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040014 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010015 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
16 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040017 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080018 select HAVE_KERNEL_GZIP
19 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010020 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080021 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010022 select HAVE_PERF_EVENTS
23 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010024 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010025 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 help
27 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000028 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000030 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 Europe. There is an ARM Linux project with a web page at
32 <http://www.arm.linux.org.uk/>.
33
Russell King1a189b92008-04-13 21:41:55 +010034config HAVE_PWM
35 bool
36
Ralf Baechle75e71532007-02-09 17:08:58 +000037config SYS_SUPPORTS_APM_EMULATION
38 bool
39
David Brownell0a938b92007-03-05 00:30:18 -080040config GENERIC_GPIO
41 bool
David Brownell0a938b92007-03-05 00:30:18 -080042
John Stultz5cfc8ee2010-03-24 00:22:36 +000043config ARCH_USES_GETTIMEOFFSET
44 bool
45 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010046
Kevin Hilman0567a0c2007-03-13 20:29:24 +010047config GENERIC_CLOCKEVENTS
48 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010049
Catalin Marinasa8655e82008-02-04 17:30:57 +010050config GENERIC_CLOCKEVENTS_BROADCAST
51 bool
52 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010053 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010054
Linus Walleijbc581772009-09-15 17:30:37 +010055config HAVE_TCM
56 bool
57 select GENERIC_ALLOCATOR
58
Russell Kinge119bff2010-01-10 17:23:29 +000059config HAVE_PROC_CPU
60 bool
61
Al Viro5ea81762007-02-11 15:41:31 +000062config NO_IOPORT
63 bool
Al Viro5ea81762007-02-11 15:41:31 +000064
Linus Torvalds1da177e2005-04-16 15:20:36 -070065config EISA
66 bool
67 ---help---
68 The Extended Industry Standard Architecture (EISA) bus was
69 developed as an open alternative to the IBM MicroChannel bus.
70
71 The EISA bus provided some of the features of the IBM MicroChannel
72 bus while maintaining backward compatibility with cards made for
73 the older ISA bus. The EISA bus saw limited use between 1988 and
74 1995 when it was made obsolete by the PCI bus.
75
76 Say Y here if you are building a kernel for an EISA-based machine.
77
78 Otherwise, say N.
79
80config SBUS
81 bool
82
83config MCA
84 bool
85 help
86 MicroChannel Architecture is found in some IBM PS/2 machines and
87 laptops. It is a bus system similar to PCI or ISA. See
88 <file:Documentation/mca.txt> (and especially the web page given
89 there) before attempting to build an MCA bus kernel.
90
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010091config GENERIC_HARDIRQS
92 bool
93 default y
94
Russell Kingf16fb1e2007-04-28 09:59:37 +010095config STACKTRACE_SUPPORT
96 bool
97 default y
98
Nicolas Pitref76e9152008-04-24 01:31:46 -040099config HAVE_LATENCYTOP_SUPPORT
100 bool
101 depends on !SMP
102 default y
103
Russell Kingf16fb1e2007-04-28 09:59:37 +0100104config LOCKDEP_SUPPORT
105 bool
106 default y
107
Russell King7ad1bcb2006-08-27 12:07:02 +0100108config TRACE_IRQFLAGS_SUPPORT
109 bool
110 default y
111
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100112config HARDIRQS_SW_RESEND
113 bool
114 default y
115
116config GENERIC_IRQ_PROBE
117 bool
118 default y
119
Nick Piggin95c354f2008-01-30 13:31:20 +0100120config GENERIC_LOCKBREAK
121 bool
122 default y
123 depends on SMP && PREEMPT
124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125config RWSEM_GENERIC_SPINLOCK
126 bool
127 default y
128
129config RWSEM_XCHGADD_ALGORITHM
130 bool
131
David Howellsf0d1b0b2006-12-08 02:37:49 -0800132config ARCH_HAS_ILOG2_U32
133 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800134
135config ARCH_HAS_ILOG2_U64
136 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137
Ben Dooks89c52ed2009-07-30 23:23:24 +0100138config ARCH_HAS_CPUFREQ
139 bool
140 help
141 Internal node to signify that the ARCH has CPUFREQ support
142 and that the relevant menu configurations are displayed for
143 it.
144
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100145config ARCH_HAS_CPU_IDLE_WAIT
146 def_bool y
147
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800148config GENERIC_HWEIGHT
149 bool
150 default y
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_CALIBRATE_DELAY
153 bool
154 default y
155
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100156config ARCH_MAY_HAVE_PC_FDC
157 bool
158
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800159config ZONE_DMA
160 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800162config NEED_DMA_MAP_STATE
163 def_bool y
164
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165config GENERIC_ISA_DMA
166 bool
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config FIQ
169 bool
170
Al Viro034d2f52005-12-19 16:27:59 -0500171config ARCH_MTD_XIP
172 bool
173
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100174config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100175 def_bool y
176
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100177config ARM_L1_CACHE_SHIFT_6
178 bool
179 help
180 Setting ARM L1 cache line size to 64 Bytes.
181
Hyok S. Choic760fc12006-03-27 15:18:50 +0100182config VECTORS_BASE
183 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190source "init/Kconfig"
191
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700192source "kernel/Kconfig.freezer"
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194menu "System Type"
195
Hyok S. Choi3c427972009-07-24 12:35:00 +0100196config MMU
197 bool "MMU-based Paged Memory Management Support"
198 default y
199 help
200 Select if you want MMU-based virtualised addressing space
201 support by paged memory management. If unsure, say 'Y'.
202
Russell Kingccf50e22010-03-15 19:03:06 +0000203#
204# The "ARM system type" choice list is ordered alphabetically by option
205# text. Please add new entries in the option alphabetic order.
206#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207choice
208 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000209 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100211config ARCH_AAEC2000
212 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000213 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100214 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700215 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000216 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100217 help
218 This enables support for systems based on the Agilent AAEC-2000
219
220config ARCH_INTEGRATOR
221 bool "ARM Ltd. Integrator family"
222 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100223 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000224 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000225 select ICST
Russell King13edd862010-01-15 21:49:23 +0000226 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000227 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100228 help
229 Support for ARM's Integrator platform.
230
231config ARCH_REALVIEW
232 bool "ARM Ltd. RealView family"
233 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000234 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000235 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100236 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100237 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000238 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000239 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100240 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100241 help
242 This enables support for ARM Ltd RealView boards.
243
244config ARCH_VERSATILE
245 bool "ARM Ltd. Versatile family"
246 select ARM_AMBA
247 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000248 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000249 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100250 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100251 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000252 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000253 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254 help
255 This enables support for ARM Ltd Versatile board.
256
Russell Kingceade892010-02-11 21:44:53 +0000257config ARCH_VEXPRESS
258 bool "ARM Ltd. Versatile Express family"
259 select ARCH_WANT_OPTIONAL_GPIOLIB
260 select ARM_AMBA
261 select ARM_TIMER_SP804
262 select COMMON_CLKDEV
263 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000264 select HAVE_CLK
265 select ICST
266 select PLAT_VERSATILE
267 help
268 This enables support for the ARM Ltd Versatile Express boards.
269
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100270config ARCH_AT91
271 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100272 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700273 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100274 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100275 This enables support for systems based on the Atmel AT91RM9200,
276 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277
Russell Kingccf50e22010-03-15 19:03:06 +0000278config ARCH_BCMRING
279 bool "Broadcom BCMRING"
280 depends on MMU
281 select CPU_V6
282 select ARM_AMBA
283 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000284 select GENERIC_CLOCKEVENTS
285 select ARCH_WANT_OPTIONAL_GPIOLIB
286 help
287 Support for Broadcom's BCMRing platform.
288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100290 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000291 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000292 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000293 help
294 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300296config ARCH_CNS3XXX
297 bool "Cavium Networks CNS3XXX family"
298 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300299 select GENERIC_CLOCKEVENTS
300 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400301 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300302 help
303 Support for Cavium Networks CNS3XXX platform.
304
Russell King788c9702009-04-26 14:21:59 +0100305config ARCH_GEMINI
306 bool "Cortina Systems Gemini"
307 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100308 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000309 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100310 help
311 Support for the Cortina Systems Gemini family SoCs
312
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313config ARCH_EBSA110
314 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000315 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100316 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000317 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 help
320 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000321 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 Ethernet interface, two PCMCIA sockets, two serial ports and a
323 parallel port.
324
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000325config ARCH_EP93XX
326 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000327 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000328 select ARM_AMBA
329 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000330 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700331 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100332 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000333 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000334 help
335 This enables support for the Cirrus EP93xx series of CPUs.
336
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337config ARCH_FOOTBRIDGE
338 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000339 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000341 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000342 help
343 Support for systems based on the DC21285 companion chip
344 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Russell King788c9702009-04-26 14:21:59 +0100346config ARCH_MXC
347 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100348 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100349 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100350 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100351 help
352 Support for Freescale MXC/iMX-based family of processors
353
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100354config ARCH_STMP3XXX
355 bool "Freescale STMP3xxx"
356 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100357 select COMMON_CLKDEV
358 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100359 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100360 select USB_ARCH_HAS_EHCI
361 help
362 Support for systems based on the Freescale 3xxx CPUs.
363
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100364config ARCH_NETX
365 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100367 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100368 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370 This enables support for systems based on the Hilscher NetX Soc
371
372config ARCH_H720X
373 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000374 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000376 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377 help
378 This enables support for systems based on the Hynix HMS720x
379
Russell King3b938be2007-05-12 11:25:44 +0100380config ARCH_IOP13XX
381 bool "IOP13xx-based"
382 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000383 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100384 select PLAT_IOP
385 select PCI
386 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100387 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100388 help
389 Support for Intel's IOP13XX (XScale) family of processors.
390
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100391config ARCH_IOP32X
392 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100393 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100395 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100396 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100397 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100399 Support for Intel's 80219 and IOP32X (XScale) family of
400 processors.
401
402config ARCH_IOP33X
403 bool "IOP33x-based"
404 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100406 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100408 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100409 help
410 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411
Russell King3b938be2007-05-12 11:25:44 +0100412config ARCH_IXP23XX
413 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100416 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000417 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100418 help
Russell King3b938be2007-05-12 11:25:44 +0100419 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421config ARCH_IXP2000
422 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100423 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000426 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
428 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Russell King3b938be2007-05-12 11:25:44 +0100430config ARCH_IXP4XX
431 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100432 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000433 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100434 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100435 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100436 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100437 help
Russell King3b938be2007-05-12 11:25:44 +0100438 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100439
Saeed Bisharaedabd382009-08-06 15:12:43 +0300440config ARCH_DOVE
441 bool "Marvell Dove"
442 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300443 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300444 select GENERIC_CLOCKEVENTS
445 select PLAT_ORION
446 help
447 Support for the Marvell Dove SoC 88AP510
448
Saeed Bishara651c74c2008-06-22 22:45:06 +0200449config ARCH_KIRKWOOD
450 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200452 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700453 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200454 select GENERIC_CLOCKEVENTS
455 select PLAT_ORION
456 help
457 Support for the following Marvell Kirkwood series SoCs:
458 88F6180, 88F6192 and 88F6281.
459
Russell King788c9702009-04-26 14:21:59 +0100460config ARCH_LOKI
461 bool "Marvell Loki (88RC8480)"
462 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100463 select GENERIC_CLOCKEVENTS
464 select PLAT_ORION
465 help
466 Support for the Marvell Loki (88RC8480) SoC.
467
Kevin Wells40805942010-07-27 08:49:04 -0700468config ARCH_LPC32XX
469 bool "NXP LPC32XX"
470 select CPU_ARM926T
471 select ARCH_REQUIRE_GPIOLIB
472 select HAVE_IDE
473 select ARM_AMBA
474 select USB_ARCH_HAS_OHCI
475 select COMMON_CLKDEV
476 select GENERIC_TIME
477 select GENERIC_CLOCKEVENTS
478 help
479 Support for the NXP LPC32XX family of processors
480
Russell King788c9702009-04-26 14:21:59 +0100481config ARCH_MV78XX0
482 bool "Marvell MV78xx0"
483 select CPU_FEROCEON
484 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700485 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100486 select GENERIC_CLOCKEVENTS
487 select PLAT_ORION
488 help
489 Support for the following Marvell MV78xx0 series SoCs:
490 MV781x0, MV782x0.
491
492config ARCH_ORION5X
493 bool "Marvell Orion"
494 depends on MMU
495 select CPU_FEROCEON
496 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700497 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100498 select GENERIC_CLOCKEVENTS
499 select PLAT_ORION
500 help
501 Support for the following Marvell Orion 5x series SoCs:
502 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
503 Orion-2 (5281), Orion-1-90 (6183).
504
505config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500506 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100507 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100508 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100509 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100510 select GENERIC_CLOCKEVENTS
511 select TICK_ONESHOT
512 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400513 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100514 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500515 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100516
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100517config ARCH_KS8695
518 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000519 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100520 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000521 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100522 help
523 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
524 System-on-Chip devices.
525
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100526config ARCH_NS9XXX
527 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000528 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100529 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100530 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700531 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100532 help
533 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
534 System.
535
536 <http://www.digi.com/products/microprocessors/index.jsp>
537
Russell King788c9702009-04-26 14:21:59 +0100538config ARCH_W90X900
539 bool "Nuvoton W90X900 CPU"
540 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100541 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100542 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100543 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200544 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100545 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
546 At present, the w90x900 has been renamed nuc900, regarding
547 the ARM series product line, you can login the following
548 link address to know more.
549
550 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
551 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400552
wanzongshuna62e9032009-12-31 15:06:05 +0100553config ARCH_NUC93X
554 bool "Nuvoton NUC93X CPU"
555 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100556 select COMMON_CLKDEV
557 help
558 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
559 low-power and high performance MPEG-4/JPEG multimedia controller chip.
560
Erik Gillingc5f80062010-01-21 16:53:02 -0800561config ARCH_TEGRA
562 bool "NVIDIA Tegra"
563 select GENERIC_TIME
564 select GENERIC_CLOCKEVENTS
565 select GENERIC_GPIO
566 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800567 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800568 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700569 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800570 help
571 This enables support for NVIDIA Tegra based systems (Tegra APX,
572 Tegra 6xx and Tegra 2 series).
573
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100574config ARCH_PNX4008
575 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000576 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000577 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000578 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100579 help
580 This enables support for Philips PNX4008 mobile platform.
581
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700583 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100584 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500585 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100586 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000587 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700588 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100589 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000590 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800591 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800592 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000593 help
eric miao2c8086a2007-09-11 19:13:17 -0700594 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595
Russell King788c9702009-04-26 14:21:59 +0100596config ARCH_MSM
597 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500598 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800599 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700600 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800601 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800602 Support for Qualcomm MSM/QSD based systems. This runs on the
603 apps processor of the MSM/QSD and depends on a shared memory
604 interface to the modem processor which runs the baseband
605 stack and controls some vital subsystems
606 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800607
Magnus Dammc793c1b2010-02-05 11:14:49 +0000608config ARCH_SHMOBILE
609 bool "Renesas SH-Mobile"
610 help
611 Support for Renesas's SH-Mobile ARM platforms
612
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613config ARCH_RPC
614 bool "RiscPC"
615 select ARCH_ACORN
616 select FIQ
617 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100618 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100619 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000620 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000621 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100622 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000623 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624 help
625 On the Acorn Risc-PC, Linux can support the internal IDE disk and
626 CD-ROM interface, serial and parallel port, and the floppy drive.
627
628config ARCH_SA1100
629 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000630 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100631 select ISA
Russell King05944d72006-11-30 20:43:51 +0000632 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500633 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100634 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000635 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100636 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700637 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100638 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700639 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000640 help
641 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642
643config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900644 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800645 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100646 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700647 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000648 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900649 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 help
651 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
652 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000653 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654
Ben Dooks63b1f512010-04-30 16:32:26 +0900655 Note, the S3C2416 and the S3C2450 are so close that they even share
656 the same SoC ID code. This means that there is no seperate machine
657 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
658
Ben Dooksa08ab632008-10-21 14:06:39 +0100659config ARCH_S3C64XX
660 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000661 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900662 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900663 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100664 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900665 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000666 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100667 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900668 select ARCH_REQUIRE_GPIOLIB
669 select SAMSUNG_CLKSRC
670 select SAMSUNG_IRQ_VIC_TIMER
671 select SAMSUNG_IRQ_UART
672 select S3C_GPIO_TRACK
673 select S3C_GPIO_PULL_UPDOWN
674 select S3C_GPIO_CFG_S3C24XX
675 select S3C_GPIO_CFG_S3C64XX
676 select S3C_DEV_NAND
677 select USB_ARCH_HAS_OHCI
678 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900679 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900680 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100681 help
682 Samsung S3C64XX series based systems
683
Kukjin Kim49b7a492010-09-07 15:47:18 +0900684config ARCH_S5P64X0
685 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900686 select CPU_V6
687 select GENERIC_GPIO
688 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900689 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900690 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900691 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900692 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900693 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900694 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
695 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900696
Kukjin Kim550db7f2010-01-29 10:19:26 +0900697config ARCH_S5P6442
698 bool "Samsung S5P6442"
699 select CPU_V6
700 select GENERIC_GPIO
701 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900702 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900703 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900704 help
705 Samsung S5P6442 CPU based systems
706
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200707config ARCH_S5PC100
708 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900709 select GENERIC_GPIO
710 select HAVE_CLK
711 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100712 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900713 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900714 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900715 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900716 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900717 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200718 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900719
Kukjin Kim170f4e42010-02-24 16:40:44 +0900720config ARCH_S5PV210
721 bool "Samsung S5PV210/S5PC110"
722 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900723 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900724 select GENERIC_GPIO
725 select HAVE_CLK
726 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900727 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900728 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900729 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900730 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900731 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900732 help
733 Samsung S5PV210/S5PC110 series based systems
734
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900735config ARCH_S5PV310
736 bool "Samsung S5PV310/S5PC210"
737 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900738 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900739 select GENERIC_GPIO
740 select HAVE_CLK
741 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900742 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900743 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900744 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900745 help
746 Samsung S5PV310 series based systems
747
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748config ARCH_SHARK
749 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000750 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100751 select ISA
752 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100753 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100754 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000755 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000756 help
757 Support for the StrongARM based Digital DNARD machine, also known
758 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759
Hans J. Koch83ef3332010-09-17 18:13:56 +0200760config ARCH_TCC_926
761 bool "Telechips TCC ARM926-based systems"
762 select CPU_ARM926T
763 select HAVE_CLK
764 select COMMON_CLKDEV
765 select GENERIC_CLOCKEVENTS
766 help
767 Support for Telechips TCC ARM926-based systems.
768
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769config ARCH_LH7A40X
770 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000771 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100772 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000773 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774 help
775 Say Y here for systems based on one of the Sharp LH7A40X
776 System on a Chip processors. These CPUs include an ARM922T
777 core with a wide array of integrated devices for
778 hand-held and low-power applications.
779
Linus Walleijd98aac72009-04-27 10:21:46 +0100780config ARCH_U300
781 bool "ST-Ericsson U300 Series"
782 depends on MMU
783 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100784 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100785 select ARM_AMBA
786 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100787 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100788 select COMMON_CLKDEV
789 select GENERIC_GPIO
790 help
791 Support for ST-Ericsson U300 series mobile platforms.
792
Russell Kingccf50e22010-03-15 19:03:06 +0000793config ARCH_U8500
794 bool "ST-Ericsson U8500 Series"
795 select CPU_V7
796 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000797 select GENERIC_CLOCKEVENTS
798 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100799 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100800 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000801 help
802 Support for ST-Ericsson's Ux500 architecture
803
804config ARCH_NOMADIK
805 bool "STMicroelectronics Nomadik"
806 select ARM_AMBA
807 select ARM_VIC
808 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000809 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000810 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000811 select ARCH_REQUIRE_GPIOLIB
812 help
813 Support for the Nomadik platform by ST-Ericsson
814
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100815config ARCH_DAVINCI
816 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100817 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700818 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100819 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700820 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700821 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700822 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530823 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100824 help
825 Support for TI's DaVinci platform.
826
Russell King3b938be2007-05-12 11:25:44 +0100827config ARCH_OMAP
828 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700829 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700830 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100831 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700832 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800833 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100834 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200835 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100836
viresh kumarcee37e52010-04-01 12:31:05 +0100837config PLAT_SPEAR
838 bool "ST SPEAr"
839 select ARM_AMBA
840 select ARCH_REQUIRE_GPIOLIB
841 select COMMON_CLKDEV
842 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100843 select HAVE_CLK
844 help
845 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
846
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847endchoice
848
Russell Kingccf50e22010-03-15 19:03:06 +0000849#
850# This is sorted alphabetically by mach-* pathname. However, plat-*
851# Kconfigs may be included either alphabetically (according to the
852# plat- suffix) or along side the corresponding mach-* source.
853#
Russell King95b8f202010-01-14 11:43:54 +0000854source "arch/arm/mach-aaec2000/Kconfig"
855
856source "arch/arm/mach-at91/Kconfig"
857
858source "arch/arm/mach-bcmring/Kconfig"
859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860source "arch/arm/mach-clps711x/Kconfig"
861
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300862source "arch/arm/mach-cns3xxx/Kconfig"
863
Russell King95b8f202010-01-14 11:43:54 +0000864source "arch/arm/mach-davinci/Kconfig"
865
866source "arch/arm/mach-dove/Kconfig"
867
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000868source "arch/arm/mach-ep93xx/Kconfig"
869
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870source "arch/arm/mach-footbridge/Kconfig"
871
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200872source "arch/arm/mach-gemini/Kconfig"
873
Russell King95b8f202010-01-14 11:43:54 +0000874source "arch/arm/mach-h720x/Kconfig"
875
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876source "arch/arm/mach-integrator/Kconfig"
877
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100878source "arch/arm/mach-iop32x/Kconfig"
879
880source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881
Dan Williams285f5fa2006-12-07 02:59:39 +0100882source "arch/arm/mach-iop13xx/Kconfig"
883
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884source "arch/arm/mach-ixp4xx/Kconfig"
885
886source "arch/arm/mach-ixp2000/Kconfig"
887
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100888source "arch/arm/mach-ixp23xx/Kconfig"
889
Russell King95b8f202010-01-14 11:43:54 +0000890source "arch/arm/mach-kirkwood/Kconfig"
891
892source "arch/arm/mach-ks8695/Kconfig"
893
894source "arch/arm/mach-lh7a40x/Kconfig"
895
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200896source "arch/arm/mach-loki/Kconfig"
897
Kevin Wells40805942010-07-27 08:49:04 -0700898source "arch/arm/mach-lpc32xx/Kconfig"
899
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-msm/Kconfig"
901
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200902source "arch/arm/mach-mv78xx0/Kconfig"
903
Russell King95b8f202010-01-14 11:43:54 +0000904source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-nomadik/Kconfig"
909source "arch/arm/plat-nomadik/Kconfig"
910
911source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912
Russell Kingd91a89102010-02-04 18:13:17 +0000913source "arch/arm/mach-nuc93x/Kconfig"
914
Tony Lindgrend48af152005-07-10 19:58:17 +0100915source "arch/arm/plat-omap/Kconfig"
916
917source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Tony Lindgren1dbae812005-11-10 14:26:51 +0000919source "arch/arm/mach-omap2/Kconfig"
920
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400921source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400922
Russell King95b8f202010-01-14 11:43:54 +0000923source "arch/arm/mach-pxa/Kconfig"
924source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-mmp/Kconfig"
927
928source "arch/arm/mach-realview/Kconfig"
929
930source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300931
Ben Dookscf383672009-11-10 00:14:58 +0000932source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100933source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900934source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100935
viresh kumarcee37e52010-04-01 12:31:05 +0100936source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100937
Hans J. Koch83ef3332010-09-17 18:13:56 +0200938source "arch/arm/plat-tcc/Kconfig"
939
Ben Dooksa21765a2007-02-11 18:31:01 +0100940if ARCH_S3C2410
941source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100943source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900944source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100945source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100946source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100947endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Ben Dooksa08ab632008-10-21 14:06:39 +0100949if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900950source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100951endif
952
Kukjin Kim49b7a492010-09-07 15:47:18 +0900953source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900954
Kukjin Kim550db7f2010-01-29 10:19:26 +0900955source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100956
Byungho Min5a7652f2009-06-23 21:39:42 +0900957source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900958
Kukjin Kim170f4e42010-02-24 16:40:44 +0900959source "arch/arm/mach-s5pv210/Kconfig"
960
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900961source "arch/arm/mach-s5pv310/Kconfig"
962
Russell King882d01f2010-03-02 23:40:15 +0000963source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
Russell King882d01f2010-03-02 23:40:15 +0000965source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800966
Erik Gillingc5f80062010-01-21 16:53:02 -0800967source "arch/arm/mach-tegra/Kconfig"
968
Russell King95b8f202010-01-14 11:43:54 +0000969source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100970
Russell King95b8f202010-01-14 11:43:54 +0000971source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
973source "arch/arm/mach-versatile/Kconfig"
974
Russell Kingceade892010-02-11 21:44:53 +0000975source "arch/arm/mach-vexpress/Kconfig"
976
wanzongshun7ec80dd2008-12-03 03:55:38 +0100977source "arch/arm/mach-w90x900/Kconfig"
978
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979# Definitions to make life easier
980config ARCH_ACORN
981 bool
982
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100983config PLAT_IOP
984 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700985 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100986
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400987config PLAT_ORION
988 bool
989
Eric Miaobd5ce432009-01-20 12:06:01 +0800990config PLAT_PXA
991 bool
992
Russell Kingf4b8b312010-01-14 12:48:06 +0000993config PLAT_VERSATILE
994 bool
995
Russell Kinge3887712010-01-14 13:30:16 +0000996config ARM_TIMER_SP804
997 bool
998
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999source arch/arm/mm/Kconfig
1000
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001001config IWMMXT
1002 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001003 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1004 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001005 help
1006 Enable support for iWMMXt context switching at run time if
1007 running on a CPU that supports it.
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1010config XSCALE_PMU
1011 bool
1012 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1013 default y
1014
Jamie Iles0f4f0672010-02-02 20:23:15 +01001015config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001016 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1017 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001018 default y
1019 bool
1020
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001021if !MMU
1022source "arch/arm/Kconfig-nommu"
1023endif
1024
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001025config ARM_ERRATA_411920
1026 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001027 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001028 help
1029 Invalidation of the Instruction Cache operation can
1030 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1031 It does not affect the MPCore. This option enables the ARM Ltd.
1032 recommended workaround.
1033
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001034config ARM_ERRATA_430973
1035 bool "ARM errata: Stale prediction on replaced interworking branch"
1036 depends on CPU_V7
1037 help
1038 This option enables the workaround for the 430973 Cortex-A8
1039 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1040 interworking branch is replaced with another code sequence at the
1041 same virtual address, whether due to self-modifying code or virtual
1042 to physical address re-mapping, Cortex-A8 does not recover from the
1043 stale interworking branch prediction. This results in Cortex-A8
1044 executing the new code sequence in the incorrect ARM or Thumb state.
1045 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1046 and also flushes the branch target cache at every context switch.
1047 Note that setting specific bits in the ACTLR register may not be
1048 available in non-secure mode.
1049
Catalin Marinas855c5512009-04-30 17:06:15 +01001050config ARM_ERRATA_458693
1051 bool "ARM errata: Processor deadlock when a false hazard is created"
1052 depends on CPU_V7
1053 help
1054 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1055 erratum. For very specific sequences of memory operations, it is
1056 possible for a hazard condition intended for a cache line to instead
1057 be incorrectly associated with a different cache line. This false
1058 hazard might then cause a processor deadlock. The workaround enables
1059 the L1 caching of the NEON accesses and disables the PLD instruction
1060 in the ACTLR register. Note that setting specific bits in the ACTLR
1061 register may not be available in non-secure mode.
1062
Catalin Marinas0516e462009-04-30 17:06:20 +01001063config ARM_ERRATA_460075
1064 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1065 depends on CPU_V7
1066 help
1067 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1068 erratum. Any asynchronous access to the L2 cache may encounter a
1069 situation in which recent store transactions to the L2 cache are lost
1070 and overwritten with stale memory contents from external memory. The
1071 workaround disables the write-allocate mode for the L2 cache via the
1072 ACTLR register. Note that setting specific bits in the ACTLR register
1073 may not be available in non-secure mode.
1074
Will Deacon9f050272010-09-14 09:51:43 +01001075config ARM_ERRATA_742230
1076 bool "ARM errata: DMB operation may be faulty"
1077 depends on CPU_V7 && SMP
1078 help
1079 This option enables the workaround for the 742230 Cortex-A9
1080 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1081 between two write operations may not ensure the correct visibility
1082 ordering of the two writes. This workaround sets a specific bit in
1083 the diagnostic register of the Cortex-A9 which causes the DMB
1084 instruction to behave as a DSB, ensuring the correct behaviour of
1085 the two writes.
1086
Will Deacona672e992010-09-14 09:53:02 +01001087config ARM_ERRATA_742231
1088 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1089 depends on CPU_V7 && SMP
1090 help
1091 This option enables the workaround for the 742231 Cortex-A9
1092 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1093 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1094 accessing some data located in the same cache line, may get corrupted
1095 data due to bad handling of the address hazard when the line gets
1096 replaced from one of the CPUs at the same time as another CPU is
1097 accessing it. This workaround sets specific bits in the diagnostic
1098 register of the Cortex-A9 which reduces the linefill issuing
1099 capabilities of the processor.
1100
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001101config PL310_ERRATA_588369
1102 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1103 depends on CACHE_L2X0 && ARCH_OMAP4
1104 help
1105 The PL310 L2 cache controller implements three types of Clean &
1106 Invalidate maintenance operations: by Physical Address
1107 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1108 They are architecturally defined to behave as the execution of a
1109 clean operation followed immediately by an invalidate operation,
1110 both performing to the same memory location. This functionality
1111 is not correctly implemented in PL310 as clean lines are not
1112 invalidated as a result of these operations. Note that this errata
1113 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001114
1115config ARM_ERRATA_720789
1116 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1117 depends on CPU_V7 && SMP
1118 help
1119 This option enables the workaround for the 720789 Cortex-A9 (prior to
1120 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1121 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1122 As a consequence of this erratum, some TLB entries which should be
1123 invalidated are not, resulting in an incoherency in the system page
1124 tables. The workaround changes the TLB flushing routines to invalidate
1125 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001126
1127config ARM_ERRATA_743622
1128 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1129 depends on CPU_V7
1130 help
1131 This option enables the workaround for the 743622 Cortex-A9
1132 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1133 optimisation in the Cortex-A9 Store Buffer may lead to data
1134 corruption. This workaround sets a specific bit in the diagnostic
1135 register of the Cortex-A9 which disables the Store Buffer
1136 optimisation, preventing the defect from occurring. This has no
1137 visible impact on the overall performance or power consumption of the
1138 processor.
1139
Linus Torvalds1da177e2005-04-16 15:20:36 -07001140endmenu
1141
1142source "arch/arm/common/Kconfig"
1143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144menu "Bus support"
1145
1146config ARM_AMBA
1147 bool
1148
1149config ISA
1150 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 help
1152 Find out whether you have ISA slots on your motherboard. ISA is the
1153 name of a bus system, i.e. the way the CPU talks to the other stuff
1154 inside your box. Other bus systems are PCI, EISA, MicroChannel
1155 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1156 newer boards don't support it. If you have ISA, say Y, otherwise N.
1157
Russell King065909b2006-01-04 15:44:16 +00001158# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159config ISA_DMA
1160 bool
Russell King065909b2006-01-04 15:44:16 +00001161 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162
Russell King065909b2006-01-04 15:44:16 +00001163# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001164config ISA_DMA_API
1165 bool
Al Viro5cae8412005-05-04 05:39:22 +01001166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001168 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169 help
1170 Find out whether you have a PCI motherboard. PCI is the name of a
1171 bus system, i.e. the way the CPU talks to the other stuff inside
1172 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1173 VESA. If you have PCI, say Y, otherwise N.
1174
Anton Vorontsov52882172010-04-19 13:20:49 +01001175config PCI_DOMAINS
1176 bool
1177 depends on PCI
1178
Matthew Wilcox36e23592007-07-10 10:54:40 -06001179config PCI_SYSCALL
1180 def_bool PCI
1181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182# Select the host bridge type
1183config PCI_HOST_VIA82C505
1184 bool
1185 depends on PCI && ARCH_SHARK
1186 default y
1187
Mike Rapoporta0113a92007-11-25 08:55:34 +01001188config PCI_HOST_ITE8152
1189 bool
1190 depends on PCI && MACH_ARMCORE
1191 default y
1192 select DMABOUNCE
1193
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194source "drivers/pci/Kconfig"
1195
1196source "drivers/pcmcia/Kconfig"
1197
1198endmenu
1199
1200menu "Kernel Features"
1201
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001202source "kernel/time/Kconfig"
1203
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204config SMP
1205 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001206 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001207 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001208 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1209 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1210 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001211 select USE_GENERIC_SMP_HELPERS
Russell King971acb92010-09-04 08:16:30 +01001212 select HAVE_ARM_SCU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 help
1214 This enables support for systems with more than one CPU. If you have
1215 a system with only one CPU, like most personal computers, say N. If
1216 you have a system with more than one CPU, say Y.
1217
1218 If you say N here, the kernel will run on single and multiprocessor
1219 machines, but will use only one CPU of a multiprocessor machine. If
1220 you say Y here, the kernel will run on many, but not all, single
1221 processor machines. On a single processor machine, the kernel will
1222 run faster if you say N here.
1223
Adrian Bunk03502fa2008-02-03 15:50:21 +02001224 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001226 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227
1228 If you don't know what to do here, say N.
1229
Russell Kingf00ec482010-09-04 10:47:48 +01001230config SMP_ON_UP
1231 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1232 depends on EXPERIMENTAL
1233 depends on SMP && !XIP && !THUMB2_KERNEL
1234 default y
1235 help
1236 SMP kernels contain instructions which fail on non-SMP processors.
1237 Enabling this option allows the kernel to modify itself to make
1238 these instructions safe. Disabling it allows about 1K of space
1239 savings.
1240
1241 If you don't know what to do here, say Y.
1242
Russell Kinga8cbcd92009-05-16 11:51:14 +01001243config HAVE_ARM_SCU
1244 bool
1245 depends on SMP
1246 help
1247 This option enables support for the ARM system coherency unit
1248
Russell Kingf32f4ce2009-05-16 12:14:21 +01001249config HAVE_ARM_TWD
1250 bool
1251 depends on SMP
1252 help
1253 This options enables support for the ARM timer and watchdog unit
1254
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001255choice
1256 prompt "Memory split"
1257 default VMSPLIT_3G
1258 help
1259 Select the desired split between kernel and user memory.
1260
1261 If you are not absolutely sure what you are doing, leave this
1262 option alone!
1263
1264 config VMSPLIT_3G
1265 bool "3G/1G user/kernel split"
1266 config VMSPLIT_2G
1267 bool "2G/2G user/kernel split"
1268 config VMSPLIT_1G
1269 bool "1G/3G user/kernel split"
1270endchoice
1271
1272config PAGE_OFFSET
1273 hex
1274 default 0x40000000 if VMSPLIT_1G
1275 default 0x80000000 if VMSPLIT_2G
1276 default 0xC0000000
1277
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278config NR_CPUS
1279 int "Maximum number of CPUs (2-32)"
1280 range 2 32
1281 depends on SMP
1282 default "4"
1283
Russell Kinga054a812005-11-02 22:24:33 +00001284config HOTPLUG_CPU
1285 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1286 depends on SMP && HOTPLUG && EXPERIMENTAL
1287 help
1288 Say Y here to experiment with turning CPUs off and on. CPUs
1289 can be controlled through /sys/devices/system/cpu.
1290
Russell King37ee16a2005-11-08 19:08:05 +00001291config LOCAL_TIMERS
1292 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001293 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001294 default y
Russell King971acb92010-09-04 08:16:30 +01001295 select HAVE_ARM_TWD
Russell King37ee16a2005-11-08 19:08:05 +00001296 help
1297 Enable support for local timers on SMP platforms, rather then the
1298 legacy IPI broadcast method. Local timers allows the system
1299 accounting to be spread across the timer interval, preventing a
1300 "thundering herd" at every timer tick.
1301
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001302source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303
Russell Kingf8065812006-03-02 22:41:59 +00001304config HZ
1305 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001306 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001307 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001308 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001309 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001310 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001311 default 100
1312
Catalin Marinas16c79652009-07-24 12:33:02 +01001313config THUMB2_KERNEL
1314 bool "Compile the kernel in Thumb-2 mode"
1315 depends on CPU_V7 && EXPERIMENTAL
1316 select AEABI
1317 select ARM_ASM_UNIFIED
1318 help
1319 By enabling this option, the kernel will be compiled in
1320 Thumb-2 mode. A compiler/assembler that understand the unified
1321 ARM-Thumb syntax is needed.
1322
1323 If unsure, say N.
1324
Catalin Marinas0becb082009-07-24 12:32:53 +01001325config ARM_ASM_UNIFIED
1326 bool
1327
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001328config AEABI
1329 bool "Use the ARM EABI to compile the kernel"
1330 help
1331 This option allows for the kernel to be compiled using the latest
1332 ARM ABI (aka EABI). This is only useful if you are using a user
1333 space environment that is also compiled with EABI.
1334
1335 Since there are major incompatibilities between the legacy ABI and
1336 EABI, especially with regard to structure member alignment, this
1337 option also changes the kernel syscall calling convention to
1338 disambiguate both ABIs and allow for backward compatibility support
1339 (selected with CONFIG_OABI_COMPAT).
1340
1341 To use this you need GCC version 4.0.0 or later.
1342
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001343config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001344 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001345 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001346 default y
1347 help
1348 This option preserves the old syscall interface along with the
1349 new (ARM EABI) one. It also provides a compatibility layer to
1350 intercept syscalls that have structure arguments which layout
1351 in memory differs between the legacy ABI and the new ARM EABI
1352 (only for non "thumb" binaries). This option adds a tiny
1353 overhead to all syscalls and produces a slightly larger kernel.
1354 If you know you'll be using only pure EABI user space then you
1355 can say N here. If this option is not selected and you attempt
1356 to execute a legacy ABI binary then the result will be
1357 UNPREDICTABLE (in fact it can be predicted that it won't work
1358 at all). If in doubt say Y.
1359
Mel Gormaneb335752009-05-13 17:34:48 +01001360config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001361 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001362
Russell King05944d72006-11-30 20:43:51 +00001363config ARCH_SPARSEMEM_ENABLE
1364 bool
1365
Russell King07a2f732008-10-01 21:39:58 +01001366config ARCH_SPARSEMEM_DEFAULT
1367 def_bool ARCH_SPARSEMEM_ENABLE
1368
Russell King05944d72006-11-30 20:43:51 +00001369config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001370 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001371
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001372config HIGHMEM
1373 bool "High Memory Support (EXPERIMENTAL)"
1374 depends on MMU && EXPERIMENTAL
1375 help
1376 The address space of ARM processors is only 4 Gigabytes large
1377 and it has to accommodate user address space, kernel address
1378 space as well as some memory mapped IO. That means that, if you
1379 have a large amount of physical memory and/or IO, not all of the
1380 memory can be "permanently mapped" by the kernel. The physical
1381 memory that is not permanently mapped is called "high memory".
1382
1383 Depending on the selected kernel/user memory split, minimum
1384 vmalloc space and actual amount of RAM, you may not need this
1385 option which should result in a slightly faster kernel.
1386
1387 If unsure, say n.
1388
Russell King65cec8e2009-08-17 20:02:06 +01001389config HIGHPTE
1390 bool "Allocate 2nd-level pagetables from highmem"
1391 depends on HIGHMEM
1392 depends on !OUTER_CACHE
1393
Jamie Iles1b8873a2010-02-02 20:25:44 +01001394config HW_PERF_EVENTS
1395 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001396 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001397 default y
1398 help
1399 Enable hardware performance counter support for perf events. If
1400 disabled, perf events will use software events only.
1401
eric miao354e6f72010-06-25 09:46:09 +01001402config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001403 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001404 help
1405 This enables support for sparse irqs. This is useful in general
1406 as most CPUs have a fairly sparse array of IRQ vectors, which
1407 the irq_desc then maps directly on to. Systems with a high
1408 number of off-chip IRQs will want to treat this as
1409 experimental until they have been independently verified.
1410
Dave Hansen3f22ab22005-06-23 00:07:43 -07001411source "mm/Kconfig"
1412
Magnus Dammc1b2d972010-07-05 10:00:11 +01001413config FORCE_MAX_ZONEORDER
1414 int "Maximum zone order" if ARCH_SHMOBILE
1415 range 11 64 if ARCH_SHMOBILE
1416 default "9" if SA1111
1417 default "11"
1418 help
1419 The kernel memory allocator divides physically contiguous memory
1420 blocks into "zones", where each zone is a power of two number of
1421 pages. This option selects the largest power of two that the kernel
1422 keeps in the memory allocator. If you need to allocate very large
1423 blocks of physically contiguous memory, then you may need to
1424 increase this value.
1425
1426 This config option is actually maximum order plus one. For example,
1427 a value of 11 means that the largest free memory block is 2^10 pages.
1428
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429config LEDS
1430 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001431 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001432 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1434 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001435 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001436 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001437 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438 help
1439 If you say Y here, the LEDs on your machine will be used
1440 to provide useful information about your current system status.
1441
1442 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1443 be able to select which LEDs are active using the options below. If
1444 you are compiling a kernel for the EBSA-110 or the LART however, the
1445 red LED will simply flash regularly to indicate that the system is
1446 still functional. It is safe to say Y here if you have a CATS
1447 system, but the driver will do nothing.
1448
1449config LEDS_TIMER
1450 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001451 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1452 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001454 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455 default y if ARCH_EBSA110
1456 help
1457 If you say Y here, one of the system LEDs (the green one on the
1458 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1459 will flash regularly to indicate that the system is still
1460 operational. This is mainly useful to kernel hackers who are
1461 debugging unstable kernels.
1462
1463 The LART uses the same LED for both Timer LED and CPU usage LED
1464 functions. You may choose to use both, but the Timer LED function
1465 will overrule the CPU usage LED.
1466
1467config LEDS_CPU
1468 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001469 !ARCH_OMAP) \
1470 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1471 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 depends on LEDS
1473 help
1474 If you say Y here, the red LED will be used to give a good real
1475 time indication of CPU usage, by lighting whenever the idle task
1476 is not currently executing.
1477
1478 The LART uses the same LED for both Timer LED and CPU usage LED
1479 functions. You may choose to use both, but the Timer LED function
1480 will overrule the CPU usage LED.
1481
1482config ALIGNMENT_TRAP
1483 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001484 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001486 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001488 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1490 address divisible by 4. On 32-bit ARM processors, these non-aligned
1491 fetch/store instructions will be emulated in software if you say
1492 here, which has a severe performance impact. This is necessary for
1493 correct operation of some network protocols. With an IP-only
1494 configuration it is safe to say N, otherwise say Y.
1495
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001496config UACCESS_WITH_MEMCPY
1497 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1498 depends on MMU && EXPERIMENTAL
1499 default y if CPU_FEROCEON
1500 help
1501 Implement faster copy_to_user and clear_user methods for CPU
1502 cores where a 8-word STM instruction give significantly higher
1503 memory write throughput than a sequence of individual 32bit stores.
1504
1505 A possible side effect is a slight increase in scheduling latency
1506 between threads sharing the same address space if they invoke
1507 such copy operations with large buffers.
1508
1509 However, if the CPU data cache is using a write-allocate mode,
1510 this option is unlikely to provide any performance gain.
1511
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001512config SECCOMP
1513 bool
1514 prompt "Enable seccomp to safely compute untrusted bytecode"
1515 ---help---
1516 This kernel feature is useful for number crunching applications
1517 that may need to compute untrusted bytecode during their
1518 execution. By using pipes or other transports made available to
1519 the process as file descriptors supporting the read/write
1520 syscalls, it's possible to isolate those applications in
1521 their own address space using seccomp. Once seccomp is
1522 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1523 and the task is only allowed to execute a few safe syscalls
1524 defined by each seccomp mode.
1525
Nicolas Pitrec743f382010-05-24 23:55:42 -04001526config CC_STACKPROTECTOR
1527 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1528 help
1529 This option turns on the -fstack-protector GCC feature. This
1530 feature puts, at the beginning of functions, a canary value on
1531 the stack just before the return address, and validates
1532 the value just before actually returning. Stack based buffer
1533 overflows (that need to overwrite this return address) now also
1534 overwrite the canary, which gets detected and the attack is then
1535 neutralized via a kernel panic.
1536 This feature requires gcc version 4.2 or above.
1537
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001538config DEPRECATED_PARAM_STRUCT
1539 bool "Provide old way to pass kernel parameters"
1540 help
1541 This was deprecated in 2001 and announced to live on for 5 years.
1542 Some old boot loaders still use this way.
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544endmenu
1545
1546menu "Boot options"
1547
1548# Compressed boot loader in ROM. Yes, we really want to ask about
1549# TEXT and BSS so we preserve their values in the config files.
1550config ZBOOT_ROM_TEXT
1551 hex "Compressed ROM boot loader base address"
1552 default "0"
1553 help
1554 The physical address at which the ROM-able zImage is to be
1555 placed in the target. Platforms which normally make use of
1556 ROM-able zImage formats normally set this to a suitable
1557 value in their defconfig file.
1558
1559 If ZBOOT_ROM is not enabled, this has no effect.
1560
1561config ZBOOT_ROM_BSS
1562 hex "Compressed ROM boot loader BSS address"
1563 default "0"
1564 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001565 The base address of an area of read/write memory in the target
1566 for the ROM-able zImage which must be available while the
1567 decompressor is running. It must be large enough to hold the
1568 entire decompressed kernel plus an additional 128 KiB.
1569 Platforms which normally make use of ROM-able zImage formats
1570 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001571
1572 If ZBOOT_ROM is not enabled, this has no effect.
1573
1574config ZBOOT_ROM
1575 bool "Compressed boot loader in ROM/flash"
1576 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1577 help
1578 Say Y here if you intend to execute your compressed kernel image
1579 (zImage) directly from ROM or flash. If unsure, say N.
1580
1581config CMDLINE
1582 string "Default kernel command string"
1583 default ""
1584 help
1585 On some architectures (EBSA110 and CATS), there is currently no way
1586 for the boot loader to pass arguments to the kernel. For these
1587 architectures, you should supply some command-line options at build
1588 time by entering them here. As a minimum, you should specify the
1589 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1590
Alexander Holler92d20402010-02-16 19:04:53 +01001591config CMDLINE_FORCE
1592 bool "Always use the default kernel command string"
1593 depends on CMDLINE != ""
1594 help
1595 Always use the default kernel command string, even if the boot
1596 loader passes other arguments to the kernel.
1597 This is useful if you cannot or don't want to change the
1598 command-line options your boot loader passes to the kernel.
1599
1600 If unsure, say N.
1601
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602config XIP_KERNEL
1603 bool "Kernel Execute-In-Place from ROM"
1604 depends on !ZBOOT_ROM
1605 help
1606 Execute-In-Place allows the kernel to run from non-volatile storage
1607 directly addressable by the CPU, such as NOR flash. This saves RAM
1608 space since the text section of the kernel is not loaded from flash
1609 to RAM. Read-write sections, such as the data section and stack,
1610 are still copied to RAM. The XIP kernel is not compressed since
1611 it has to run directly from flash, so it will take more space to
1612 store it. The flash address used to link the kernel object files,
1613 and for storing it, is configuration dependent. Therefore, if you
1614 say Y here, you must know the proper physical address where to
1615 store the kernel image depending on your own flash memory usage.
1616
1617 Also note that the make target becomes "make xipImage" rather than
1618 "make zImage" or "make Image". The final kernel binary to put in
1619 ROM memory will be arch/arm/boot/xipImage.
1620
1621 If unsure, say N.
1622
1623config XIP_PHYS_ADDR
1624 hex "XIP Kernel Physical Location"
1625 depends on XIP_KERNEL
1626 default "0x00080000"
1627 help
1628 This is the physical address in your flash memory the kernel will
1629 be linked for and stored to. This address is dependent on your
1630 own flash usage.
1631
Richard Purdiec587e4a2007-02-06 21:29:00 +01001632config KEXEC
1633 bool "Kexec system call (EXPERIMENTAL)"
1634 depends on EXPERIMENTAL
1635 help
1636 kexec is a system call that implements the ability to shutdown your
1637 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001638 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001639 you can start any kernel with it, not just Linux.
1640
1641 It is an ongoing process to be certain the hardware in a machine
1642 is properly shutdown, so do not be surprised if this code does not
1643 initially work for you. It may help to enable device hotplugging
1644 support.
1645
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001646config ATAGS_PROC
1647 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001648 depends on KEXEC
1649 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001650 help
1651 Should the atags used to boot the kernel be exported in an "atags"
1652 file in procfs. Useful with kexec.
1653
Eric Miaoe69edc792010-07-05 15:56:50 +02001654config AUTO_ZRELADDR
1655 bool "Auto calculation of the decompressed kernel image address"
1656 depends on !ZBOOT_ROM && !ARCH_U300
1657 help
1658 ZRELADDR is the physical address where the decompressed kernel
1659 image will be placed. If AUTO_ZRELADDR is selected, the address
1660 will be determined at run-time by masking the current IP with
1661 0xf8000000. This assumes the zImage being placed in the first 128MB
1662 from start of memory.
1663
Linus Torvalds1da177e2005-04-16 15:20:36 -07001664endmenu
1665
Russell Kingac9d7ef2008-08-18 17:26:00 +01001666menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667
Ben Dooks89c52ed2009-07-30 23:23:24 +01001668if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001669
1670source "drivers/cpufreq/Kconfig"
1671
Yong Shen64f102b2010-10-21 21:18:59 +08001672config CPU_FREQ_IMX
1673 tristate "CPUfreq driver for i.MX CPUs"
1674 depends on ARCH_MXC && CPU_FREQ
1675 help
1676 This enables the CPUfreq driver for i.MX CPUs.
1677
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678config CPU_FREQ_SA1100
1679 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680
1681config CPU_FREQ_SA1110
1682 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001683
1684config CPU_FREQ_INTEGRATOR
1685 tristate "CPUfreq driver for ARM Integrator CPUs"
1686 depends on ARCH_INTEGRATOR && CPU_FREQ
1687 default y
1688 help
1689 This enables the CPUfreq driver for ARM Integrator CPUs.
1690
1691 For details, take a look at <file:Documentation/cpu-freq>.
1692
1693 If in doubt, say Y.
1694
Russell King9e2697f2007-12-14 13:30:14 +00001695config CPU_FREQ_PXA
1696 bool
1697 depends on CPU_FREQ && ARCH_PXA && PXA25x
1698 default y
1699 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1700
Mark Brownb3748dd2009-06-15 11:23:20 +01001701config CPU_FREQ_S3C64XX
1702 bool "CPUfreq support for Samsung S3C64XX CPUs"
1703 depends on CPU_FREQ && CPU_S3C6410
1704
Ben Dooks9d56c022009-07-30 23:23:25 +01001705config CPU_FREQ_S3C
1706 bool
1707 help
1708 Internal configuration node for common cpufreq on Samsung SoC
1709
1710config CPU_FREQ_S3C24XX
1711 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1712 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1713 select CPU_FREQ_S3C
1714 help
1715 This enables the CPUfreq driver for the Samsung S3C24XX family
1716 of CPUs.
1717
1718 For details, take a look at <file:Documentation/cpu-freq>.
1719
1720 If in doubt, say N.
1721
1722config CPU_FREQ_S3C24XX_PLL
1723 bool "Support CPUfreq changing of PLL frequency"
1724 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1725 help
1726 Compile in support for changing the PLL frequency from the
1727 S3C24XX series CPUfreq driver. The PLL takes time to settle
1728 after a frequency change, so by default it is not enabled.
1729
1730 This also means that the PLL tables for the selected CPU(s) will
1731 be built which may increase the size of the kernel image.
1732
1733config CPU_FREQ_S3C24XX_DEBUG
1734 bool "Debug CPUfreq Samsung driver core"
1735 depends on CPU_FREQ_S3C24XX
1736 help
1737 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1738
1739config CPU_FREQ_S3C24XX_IODEBUG
1740 bool "Debug CPUfreq Samsung driver IO timing"
1741 depends on CPU_FREQ_S3C24XX
1742 help
1743 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1744
Ben Dookse6d197a2009-07-30 23:23:42 +01001745config CPU_FREQ_S3C24XX_DEBUGFS
1746 bool "Export debugfs for CPUFreq"
1747 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1748 help
1749 Export status information via debugfs.
1750
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751endif
1752
Russell Kingac9d7ef2008-08-18 17:26:00 +01001753source "drivers/cpuidle/Kconfig"
1754
1755endmenu
1756
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757menu "Floating point emulation"
1758
1759comment "At least one emulation must be selected"
1760
1761config FPE_NWFPE
1762 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001763 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764 ---help---
1765 Say Y to include the NWFPE floating point emulator in the kernel.
1766 This is necessary to run most binaries. Linux does not currently
1767 support floating point hardware so you need to say Y here even if
1768 your machine has an FPA or floating point co-processor podule.
1769
1770 You may say N here if you are going to load the Acorn FPEmulator
1771 early in the bootup.
1772
1773config FPE_NWFPE_XP
1774 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001775 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 help
1777 Say Y to include 80-bit support in the kernel floating-point
1778 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1779 Note that gcc does not generate 80-bit operations by default,
1780 so in most cases this option only enlarges the size of the
1781 floating point emulator without any good reason.
1782
1783 You almost surely want to say N here.
1784
1785config FPE_FASTFPE
1786 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001787 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 ---help---
1789 Say Y here to include the FAST floating point emulator in the kernel.
1790 This is an experimental much faster emulator which now also has full
1791 precision for the mantissa. It does not support any exceptions.
1792 It is very simple, and approximately 3-6 times faster than NWFPE.
1793
1794 It should be sufficient for most programs. It may be not suitable
1795 for scientific calculations, but you have to check this for yourself.
1796 If you do not feel you need a faster FP emulation you should better
1797 choose NWFPE.
1798
1799config VFP
1800 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001801 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001802 help
1803 Say Y to include VFP support code in the kernel. This is needed
1804 if your hardware includes a VFP unit.
1805
1806 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1807 release notes and additional status information.
1808
1809 Say N if your target does not have VFP hardware.
1810
Catalin Marinas25ebee02007-09-25 15:22:24 +01001811config VFPv3
1812 bool
1813 depends on VFP
1814 default y if CPU_V7
1815
Catalin Marinasb5872db2008-01-10 19:16:17 +01001816config NEON
1817 bool "Advanced SIMD (NEON) Extension support"
1818 depends on VFPv3 && CPU_V7
1819 help
1820 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1821 Extension.
1822
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823endmenu
1824
1825menu "Userspace binary formats"
1826
1827source "fs/Kconfig.binfmt"
1828
1829config ARTHUR
1830 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001831 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 help
1833 Say Y here to include the kernel code necessary if you want to run
1834 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1835 experimental; if this sounds frightening, say N and sleep in peace.
1836 You can also say M here to compile this support as a module (which
1837 will be called arthur).
1838
1839endmenu
1840
1841menu "Power management options"
1842
Russell Kingeceab4a2005-11-15 11:31:41 +00001843source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844
Johannes Bergf4cb5702007-12-08 02:14:00 +01001845config ARCH_SUSPEND_POSSIBLE
1846 def_bool y
1847
Linus Torvalds1da177e2005-04-16 15:20:36 -07001848endmenu
1849
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001850source "net/Kconfig"
1851
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001852source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001853
1854source "fs/Kconfig"
1855
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856source "arch/arm/Kconfig.debug"
1857
1858source "security/Kconfig"
1859
1860source "crypto/Kconfig"
1861
1862source "lib/Kconfig"