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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
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 help
30 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 Europe. There is an ARM Linux project with a web page at
35 <http://www.arm.linux.org.uk/>.
36
Russell King1a189b92008-04-13 21:41:55 +010037config HAVE_PWM
38 bool
39
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010040config MIGHT_HAVE_PCI
41 bool
42
Ralf Baechle75e71532007-02-09 17:08:58 +000043config SYS_SUPPORTS_APM_EMULATION
44 bool
45
Russell King112f38a42010-12-15 19:23:07 +000046config HAVE_SCHED_CLOCK
47 bool
48
David Brownell0a938b92007-03-05 00:30:18 -080049config GENERIC_GPIO
50 bool
David Brownell0a938b92007-03-05 00:30:18 -080051
John Stultz5cfc8ee2010-03-24 00:22:36 +000052config ARCH_USES_GETTIMEOFFSET
53 bool
54 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010055
Kevin Hilman0567a0c2007-03-13 20:29:24 +010056config GENERIC_CLOCKEVENTS
57 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010058
Catalin Marinasa8655e82008-02-04 17:30:57 +010059config GENERIC_CLOCKEVENTS_BROADCAST
60 bool
61 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010062 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010063
Linus Walleijbc581772009-09-15 17:30:37 +010064config HAVE_TCM
65 bool
66 select GENERIC_ALLOCATOR
67
Russell Kinge119bff2010-01-10 17:23:29 +000068config HAVE_PROC_CPU
69 bool
70
Al Viro5ea81762007-02-11 15:41:31 +000071config NO_IOPORT
72 bool
Al Viro5ea81762007-02-11 15:41:31 +000073
Linus Torvalds1da177e2005-04-16 15:20:36 -070074config EISA
75 bool
76 ---help---
77 The Extended Industry Standard Architecture (EISA) bus was
78 developed as an open alternative to the IBM MicroChannel bus.
79
80 The EISA bus provided some of the features of the IBM MicroChannel
81 bus while maintaining backward compatibility with cards made for
82 the older ISA bus. The EISA bus saw limited use between 1988 and
83 1995 when it was made obsolete by the PCI bus.
84
85 Say Y here if you are building a kernel for an EISA-based machine.
86
87 Otherwise, say N.
88
89config SBUS
90 bool
91
92config MCA
93 bool
94 help
95 MicroChannel Architecture is found in some IBM PS/2 machines and
96 laptops. It is a bus system similar to PCI or ISA. See
97 <file:Documentation/mca.txt> (and especially the web page given
98 there) before attempting to build an MCA bus kernel.
99
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100100config GENERIC_HARDIRQS
101 bool
102 default y
103
Russell Kingf16fb1e2007-04-28 09:59:37 +0100104config STACKTRACE_SUPPORT
105 bool
106 default y
107
Nicolas Pitref76e9152008-04-24 01:31:46 -0400108config HAVE_LATENCYTOP_SUPPORT
109 bool
110 depends on !SMP
111 default y
112
Russell Kingf16fb1e2007-04-28 09:59:37 +0100113config LOCKDEP_SUPPORT
114 bool
115 default y
116
Russell King7ad1bcb2006-08-27 12:07:02 +0100117config TRACE_IRQFLAGS_SUPPORT
118 bool
119 default y
120
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100121config HARDIRQS_SW_RESEND
122 bool
123 default y
124
125config GENERIC_IRQ_PROBE
126 bool
127 default y
128
Nick Piggin95c354f2008-01-30 13:31:20 +0100129config GENERIC_LOCKBREAK
130 bool
131 default y
132 depends on SMP && PREEMPT
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config RWSEM_GENERIC_SPINLOCK
135 bool
136 default y
137
138config RWSEM_XCHGADD_ALGORITHM
139 bool
140
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141config ARCH_HAS_ILOG2_U32
142 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143
144config ARCH_HAS_ILOG2_U64
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
Ben Dooks89c52ed2009-07-30 23:23:24 +0100147config ARCH_HAS_CPUFREQ
148 bool
149 help
150 Internal node to signify that the ARCH has CPUFREQ support
151 and that the relevant menu configurations are displayed for
152 it.
153
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100154config ARCH_HAS_CPU_IDLE_WAIT
155 def_bool y
156
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800157config GENERIC_HWEIGHT
158 bool
159 default y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config GENERIC_CALIBRATE_DELAY
162 bool
163 default y
164
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100165config ARCH_MAY_HAVE_PC_FDC
166 bool
167
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800168config ZONE_DMA
169 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800170
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800171config NEED_DMA_MAP_STATE
172 def_bool y
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174config GENERIC_ISA_DMA
175 bool
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config FIQ
178 bool
179
Al Viro034d2f52005-12-19 16:27:59 -0500180config ARCH_MTD_XIP
181 bool
182
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100183config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100184 def_bool y
185
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100186config ARM_L1_CACHE_SHIFT_6
187 bool
188 help
189 Setting ARM L1 cache line size to 64 Bytes.
190
Hyok S. Choic760fc12006-03-27 15:18:50 +0100191config VECTORS_BASE
192 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900193 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100194 default DRAM_BASE if REMAP_VECTORS_TO_RAM
195 default 0x00000000
196 help
197 The base address of exception vectors.
198
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199source "init/Kconfig"
200
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700201source "kernel/Kconfig.freezer"
202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203menu "System Type"
204
Hyok S. Choi3c427972009-07-24 12:35:00 +0100205config MMU
206 bool "MMU-based Paged Memory Management Support"
207 default y
208 help
209 Select if you want MMU-based virtualised addressing space
210 support by paged memory management. If unsure, say 'Y'.
211
Russell Kingccf50e22010-03-15 19:03:06 +0000212#
213# The "ARM system type" choice list is ordered alphabetically by option
214# text. Please add new entries in the option alphabetic order.
215#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216choice
217 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000218 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220config ARCH_AAEC2000
221 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000222 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700224 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000225 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 help
227 This enables support for systems based on the Agilent AAEC-2000
228
229config ARCH_INTEGRATOR
230 bool "ARM Ltd. Integrator family"
231 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100232 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100233 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000234 select ICST
Russell King13edd862010-01-15 21:49:23 +0000235 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000236 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 help
238 Support for ARM's Integrator platform.
239
240config ARCH_REALVIEW
241 bool "ARM Ltd. RealView family"
242 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100243 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000244 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000245 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100246 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100247 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000248 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000249 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100250 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100251 help
252 This enables support for ARM Ltd RealView boards.
253
254config ARCH_VERSATILE
255 bool "ARM Ltd. Versatile family"
256 select ARM_AMBA
257 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000259 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100261 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100262 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000263 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000264 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 help
266 This enables support for ARM Ltd Versatile board.
267
Russell Kingceade892010-02-11 21:44:53 +0000268config ARCH_VEXPRESS
269 bool "ARM Ltd. Versatile Express family"
270 select ARCH_WANT_OPTIONAL_GPIOLIB
271 select ARM_AMBA
272 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100273 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000274 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000275 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000276 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000277 select ICST
278 select PLAT_VERSATILE
279 help
280 This enables support for the ARM Ltd Versatile Express boards.
281
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100282config ARCH_AT91
283 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100284 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700285 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100287 This enables support for systems based on the Atmel AT91RM9200,
288 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289
Russell Kingccf50e22010-03-15 19:03:06 +0000290config ARCH_BCMRING
291 bool "Broadcom BCMRING"
292 depends on MMU
293 select CPU_V6
294 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100295 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000296 select GENERIC_CLOCKEVENTS
297 select ARCH_WANT_OPTIONAL_GPIOLIB
298 help
299 Support for Broadcom's BCMRing platform.
300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000303 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000304 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000305 help
306 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300308config ARCH_CNS3XXX
309 bool "Cavium Networks CNS3XXX family"
310 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300311 select GENERIC_CLOCKEVENTS
312 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100313 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400314 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300315 help
316 Support for Cavium Networks CNS3XXX platform.
317
Russell King788c9702009-04-26 14:21:59 +0100318config ARCH_GEMINI
319 bool "Cortina Systems Gemini"
320 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100321 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000322 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100323 help
324 Support for the Cortina Systems Gemini family SoCs
325
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326config ARCH_EBSA110
327 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000328 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100329 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000330 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000331 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 help
333 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000334 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 Ethernet interface, two PCMCIA sockets, two serial ports and a
336 parallel port.
337
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000338config ARCH_EP93XX
339 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000340 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000341 select ARM_AMBA
342 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100343 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700344 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100345 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000346 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000347 help
348 This enables support for the Cirrus EP93xx series of CPUs.
349
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350config ARCH_FOOTBRIDGE
351 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000352 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000354 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000355 help
356 Support for systems based on the DC21285 companion chip
357 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
Russell King788c9702009-04-26 14:21:59 +0100359config ARCH_MXC
360 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100361 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100362 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100363 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100364 help
365 Support for Freescale MXC/iMX-based family of processors
366
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800367config ARCH_MXS
368 bool "Freescale MXS-based"
369 select GENERIC_CLOCKEVENTS
370 select ARCH_REQUIRE_GPIOLIB
371 select COMMON_CLKDEV
372 help
373 Support for Freescale MXS-based family of processors
374
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100375config ARCH_STMP3XXX
376 bool "Freescale STMP3xxx"
377 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100378 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100379 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100380 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100381 select USB_ARCH_HAS_EHCI
382 help
383 Support for systems based on the Freescale 3xxx CPUs.
384
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100385config ARCH_NETX
386 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000387 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100388 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100389 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000390 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100391 This enables support for systems based on the Hilscher NetX Soc
392
393config ARCH_H720X
394 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000397 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100398 help
399 This enables support for systems based on the Hynix HMS720x
400
Russell King3b938be2007-05-12 11:25:44 +0100401config ARCH_IOP13XX
402 bool "IOP13xx-based"
403 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100405 select PLAT_IOP
406 select PCI
407 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100408 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100409 help
410 Support for Intel's IOP13XX (XScale) family of processors.
411
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100412config ARCH_IOP32X
413 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100416 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100417 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100418 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000419 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420 Support for Intel's 80219 and IOP32X (XScale) family of
421 processors.
422
423config ARCH_IOP33X
424 bool "IOP33x-based"
425 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100427 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100429 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100430 help
431 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Russell King3b938be2007-05-12 11:25:44 +0100433config ARCH_IXP23XX
434 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100435 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100437 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000438 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100439 help
Russell King3b938be2007-05-12 11:25:44 +0100440 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
442config ARCH_IXP2000
443 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100444 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000445 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100446 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000447 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000448 help
449 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450
Russell King3b938be2007-05-12 11:25:44 +0100451config ARCH_IXP4XX
452 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100453 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000454 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100455 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100456 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000457 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100458 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100459 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100460 help
Russell King3b938be2007-05-12 11:25:44 +0100461 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100462
Saeed Bisharaedabd382009-08-06 15:12:43 +0300463config ARCH_DOVE
464 bool "Marvell Dove"
465 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300466 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300467 select GENERIC_CLOCKEVENTS
468 select PLAT_ORION
469 help
470 Support for the Marvell Dove SoC 88AP510
471
Saeed Bishara651c74c2008-06-22 22:45:06 +0200472config ARCH_KIRKWOOD
473 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000474 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200475 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700476 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the following Marvell Kirkwood series SoCs:
481 88F6180, 88F6192 and 88F6281.
482
Russell King788c9702009-04-26 14:21:59 +0100483config ARCH_LOKI
484 bool "Marvell Loki (88RC8480)"
485 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100486 select GENERIC_CLOCKEVENTS
487 select PLAT_ORION
488 help
489 Support for the Marvell Loki (88RC8480) SoC.
490
Kevin Wells40805942010-07-27 08:49:04 -0700491config ARCH_LPC32XX
492 bool "NXP LPC32XX"
493 select CPU_ARM926T
494 select ARCH_REQUIRE_GPIOLIB
495 select HAVE_IDE
496 select ARM_AMBA
497 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100498 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700499 select GENERIC_TIME
500 select GENERIC_CLOCKEVENTS
501 help
502 Support for the NXP LPC32XX family of processors
503
Russell King788c9702009-04-26 14:21:59 +0100504config ARCH_MV78XX0
505 bool "Marvell MV78xx0"
506 select CPU_FEROCEON
507 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700508 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100509 select GENERIC_CLOCKEVENTS
510 select PLAT_ORION
511 help
512 Support for the following Marvell MV78xx0 series SoCs:
513 MV781x0, MV782x0.
514
515config ARCH_ORION5X
516 bool "Marvell Orion"
517 depends on MMU
518 select CPU_FEROCEON
519 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700520 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100521 select GENERIC_CLOCKEVENTS
522 select PLAT_ORION
523 help
524 Support for the following Marvell Orion 5x series SoCs:
525 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
526 Orion-2 (5281), Orion-1-90 (6183).
527
528config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500529 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100530 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100531 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100532 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100533 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000534 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100535 select TICK_ONESHOT
536 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400537 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100538 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500539 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100540
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100541config ARCH_KS8695
542 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000543 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100544 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000545 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100546 help
547 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
548 System-on-Chip devices.
549
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100550config ARCH_NS9XXX
551 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000552 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100553 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100554 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700555 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100556 help
557 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
558 System.
559
560 <http://www.digi.com/products/microprocessors/index.jsp>
561
Russell King788c9702009-04-26 14:21:59 +0100562config ARCH_W90X900
563 bool "Nuvoton W90X900 CPU"
564 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100565 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100566 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200568 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100569 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570 At present, the w90x900 has been renamed nuc900, regarding
571 the ARM series product line, you can login the following
572 link address to know more.
573
574 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400576
wanzongshuna62e9032009-12-31 15:06:05 +0100577config ARCH_NUC93X
578 bool "Nuvoton NUC93X CPU"
579 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100580 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100581 help
582 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583 low-power and high performance MPEG-4/JPEG multimedia controller chip.
584
Erik Gillingc5f80062010-01-21 16:53:02 -0800585config ARCH_TEGRA
586 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000587 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800588 select GENERIC_TIME
589 select GENERIC_CLOCKEVENTS
590 select GENERIC_GPIO
591 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000592 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800593 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700594 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800595 help
596 This enables support for NVIDIA Tegra based systems (Tegra APX,
597 Tegra 6xx and Tegra 2 series).
598
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100599config ARCH_PNX4008
600 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000601 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000603 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100604 help
605 This enables support for Philips PNX4008 mobile platform.
606
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700608 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100609 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500610 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100611 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700613 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100614 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000615 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000616 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800617 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800618 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000619 help
eric miao2c8086a2007-09-11 19:13:17 -0700620 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_MSM
623 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500624 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800625 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700626 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800627 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800628 Support for Qualcomm MSM/QSD based systems. This runs on the
629 apps processor of the MSM/QSD and depends on a shared memory
630 interface to the modem processor which runs the baseband
631 stack and controls some vital subsystems
632 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800633
Magnus Dammc793c1b2010-02-05 11:14:49 +0000634config ARCH_SHMOBILE
635 bool "Renesas SH-Mobile"
636 help
637 Support for Renesas's SH-Mobile ARM platforms
638
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639config ARCH_RPC
640 bool "RiscPC"
641 select ARCH_ACORN
642 select FIQ
643 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100644 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100645 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000646 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000647 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100648 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000649 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 help
651 On the Acorn Risc-PC, Linux can support the internal IDE disk and
652 CD-ROM interface, serial and parallel port, and the floppy drive.
653
654config ARCH_SA1100
655 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000656 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100657 select ISA
Russell King05944d72006-11-30 20:43:51 +0000658 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500659 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100660 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000661 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100662 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700663 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000664 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100665 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700666 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000667 help
668 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669
670config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900671 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800672 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100673 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700674 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000675 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900676 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 help
678 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
679 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000680 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681
Ben Dooks63b1f512010-04-30 16:32:26 +0900682 Note, the S3C2416 and the S3C2450 are so close that they even share
683 the same SoC ID code. This means that there is no seperate machine
684 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
685
Ben Dooksa08ab632008-10-21 14:06:39 +0100686config ARCH_S3C64XX
687 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000688 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900689 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900690 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100691 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900692 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000693 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100694 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900695 select ARCH_REQUIRE_GPIOLIB
696 select SAMSUNG_CLKSRC
697 select SAMSUNG_IRQ_VIC_TIMER
698 select SAMSUNG_IRQ_UART
699 select S3C_GPIO_TRACK
700 select S3C_GPIO_PULL_UPDOWN
701 select S3C_GPIO_CFG_S3C24XX
702 select S3C_GPIO_CFG_S3C64XX
703 select S3C_DEV_NAND
704 select USB_ARCH_HAS_OHCI
705 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900706 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900707 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100708 help
709 Samsung S3C64XX series based systems
710
Kukjin Kim49b7a492010-09-07 15:47:18 +0900711config ARCH_S5P64X0
712 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900713 select CPU_V6
714 select GENERIC_GPIO
715 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900716 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900717 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900718 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900719 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900720 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900721 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
722 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900723
Kukjin Kim550db7f2010-01-29 10:19:26 +0900724config ARCH_S5P6442
725 bool "Samsung S5P6442"
726 select CPU_V6
727 select GENERIC_GPIO
728 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900729 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900731 help
732 Samsung S5P6442 CPU based systems
733
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200734config ARCH_S5PC100
735 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900736 select GENERIC_GPIO
737 select HAVE_CLK
738 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100739 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900740 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900741 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900742 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900743 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900744 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200745 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900746
Kukjin Kim170f4e42010-02-24 16:40:44 +0900747config ARCH_S5PV210
748 bool "Samsung S5PV210/S5PC110"
749 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900750 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900751 select GENERIC_GPIO
752 select HAVE_CLK
753 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900754 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900755 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900756 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900757 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900758 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900759 help
760 Samsung S5PV210/S5PC110 series based systems
761
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900762config ARCH_S5PV310
763 bool "Samsung S5PV310/S5PC210"
764 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900765 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900766 select GENERIC_GPIO
767 select HAVE_CLK
768 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900769 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900770 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900771 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900772 help
773 Samsung S5PV310 series based systems
774
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775config ARCH_SHARK
776 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000777 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100778 select ISA
779 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100780 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100781 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000782 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000783 help
784 Support for the StrongARM based Digital DNARD machine, also known
785 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786
Hans J. Koch83ef3332010-09-17 18:13:56 +0200787config ARCH_TCC_926
788 bool "Telechips TCC ARM926-based systems"
789 select CPU_ARM926T
790 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100791 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200792 select GENERIC_CLOCKEVENTS
793 help
794 Support for Telechips TCC ARM926-based systems.
795
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796config ARCH_LH7A40X
797 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000798 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100799 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000800 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801 help
802 Say Y here for systems based on one of the Sharp LH7A40X
803 System on a Chip processors. These CPUs include an ARM922T
804 core with a wide array of integrated devices for
805 hand-held and low-power applications.
806
Linus Walleijd98aac72009-04-27 10:21:46 +0100807config ARCH_U300
808 bool "ST-Ericsson U300 Series"
809 depends on MMU
810 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000811 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100812 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100813 select ARM_AMBA
814 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100815 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100816 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100817 select GENERIC_GPIO
818 help
819 Support for ST-Ericsson U300 series mobile platforms.
820
Russell Kingccf50e22010-03-15 19:03:06 +0000821config ARCH_U8500
822 bool "ST-Ericsson U8500 Series"
823 select CPU_V7
824 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000825 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100826 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100827 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100828 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000829 help
830 Support for ST-Ericsson's Ux500 architecture
831
832config ARCH_NOMADIK
833 bool "STMicroelectronics Nomadik"
834 select ARM_AMBA
835 select ARM_VIC
836 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100837 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000838 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000839 select ARCH_REQUIRE_GPIOLIB
840 help
841 Support for the Nomadik platform by ST-Ericsson
842
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100843config ARCH_DAVINCI
844 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100845 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700846 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100847 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700848 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100849 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700850 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530851 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100852 help
853 Support for TI's DaVinci platform.
854
Russell King3b938be2007-05-12 11:25:44 +0100855config ARCH_OMAP
856 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700857 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700858 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100859 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700860 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000861 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800862 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100863 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200864 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100865
viresh kumarcee37e52010-04-01 12:31:05 +0100866config PLAT_SPEAR
867 bool "ST SPEAr"
868 select ARM_AMBA
869 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100870 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100871 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100872 select HAVE_CLK
873 help
874 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
875
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876endchoice
877
Russell Kingccf50e22010-03-15 19:03:06 +0000878#
879# This is sorted alphabetically by mach-* pathname. However, plat-*
880# Kconfigs may be included either alphabetically (according to the
881# plat- suffix) or along side the corresponding mach-* source.
882#
Russell King95b8f202010-01-14 11:43:54 +0000883source "arch/arm/mach-aaec2000/Kconfig"
884
885source "arch/arm/mach-at91/Kconfig"
886
887source "arch/arm/mach-bcmring/Kconfig"
888
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889source "arch/arm/mach-clps711x/Kconfig"
890
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300891source "arch/arm/mach-cns3xxx/Kconfig"
892
Russell King95b8f202010-01-14 11:43:54 +0000893source "arch/arm/mach-davinci/Kconfig"
894
895source "arch/arm/mach-dove/Kconfig"
896
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000897source "arch/arm/mach-ep93xx/Kconfig"
898
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899source "arch/arm/mach-footbridge/Kconfig"
900
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200901source "arch/arm/mach-gemini/Kconfig"
902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-h720x/Kconfig"
904
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905source "arch/arm/mach-integrator/Kconfig"
906
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100907source "arch/arm/mach-iop32x/Kconfig"
908
909source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
Dan Williams285f5fa2006-12-07 02:59:39 +0100911source "arch/arm/mach-iop13xx/Kconfig"
912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913source "arch/arm/mach-ixp4xx/Kconfig"
914
915source "arch/arm/mach-ixp2000/Kconfig"
916
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100917source "arch/arm/mach-ixp23xx/Kconfig"
918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-kirkwood/Kconfig"
920
921source "arch/arm/mach-ks8695/Kconfig"
922
923source "arch/arm/mach-lh7a40x/Kconfig"
924
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200925source "arch/arm/mach-loki/Kconfig"
926
Kevin Wells40805942010-07-27 08:49:04 -0700927source "arch/arm/mach-lpc32xx/Kconfig"
928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-msm/Kconfig"
930
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200931source "arch/arm/mach-mv78xx0/Kconfig"
932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800935source "arch/arm/mach-mxs/Kconfig"
936
Russell King95b8f202010-01-14 11:43:54 +0000937source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-nomadik/Kconfig"
940source "arch/arm/plat-nomadik/Kconfig"
941
942source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943
Russell Kingd91a89102010-02-04 18:13:17 +0000944source "arch/arm/mach-nuc93x/Kconfig"
945
Tony Lindgrend48af152005-07-10 19:58:17 +0100946source "arch/arm/plat-omap/Kconfig"
947
948source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Tony Lindgren1dbae812005-11-10 14:26:51 +0000950source "arch/arm/mach-omap2/Kconfig"
951
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400952source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-pxa/Kconfig"
955source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-mmp/Kconfig"
958
959source "arch/arm/mach-realview/Kconfig"
960
961source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300962
Ben Dookscf383672009-11-10 00:14:58 +0000963source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100964source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900965source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100966
viresh kumarcee37e52010-04-01 12:31:05 +0100967source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100968
Hans J. Koch83ef3332010-09-17 18:13:56 +0200969source "arch/arm/plat-tcc/Kconfig"
970
Ben Dooksa21765a2007-02-11 18:31:01 +0100971if ARCH_S3C2410
972source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100974source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900975source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100976source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100977source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100978endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979
Ben Dooksa08ab632008-10-21 14:06:39 +0100980if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900981source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100982endif
983
Kukjin Kim49b7a492010-09-07 15:47:18 +0900984source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900985
Kukjin Kim550db7f2010-01-29 10:19:26 +0900986source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100987
Byungho Min5a7652f2009-06-23 21:39:42 +0900988source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900989
Kukjin Kim170f4e42010-02-24 16:40:44 +0900990source "arch/arm/mach-s5pv210/Kconfig"
991
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900992source "arch/arm/mach-s5pv310/Kconfig"
993
Russell King882d01f2010-03-02 23:40:15 +0000994source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995
Russell King882d01f2010-03-02 23:40:15 +0000996source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800997
Erik Gillingc5f80062010-01-21 16:53:02 -0800998source "arch/arm/mach-tegra/Kconfig"
999
Russell King95b8f202010-01-14 11:43:54 +00001000source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001001
Russell King95b8f202010-01-14 11:43:54 +00001002source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003
1004source "arch/arm/mach-versatile/Kconfig"
1005
Russell Kingceade892010-02-11 21:44:53 +00001006source "arch/arm/mach-vexpress/Kconfig"
1007
wanzongshun7ec80dd2008-12-03 03:55:38 +01001008source "arch/arm/mach-w90x900/Kconfig"
1009
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010# Definitions to make life easier
1011config ARCH_ACORN
1012 bool
1013
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001014config PLAT_IOP
1015 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001016 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001017 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001018
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001019config PLAT_ORION
1020 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001021 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001022
Eric Miaobd5ce432009-01-20 12:06:01 +08001023config PLAT_PXA
1024 bool
1025
Russell Kingf4b8b312010-01-14 12:48:06 +00001026config PLAT_VERSATILE
1027 bool
1028
Russell Kinge3887712010-01-14 13:30:16 +00001029config ARM_TIMER_SP804
1030 bool
1031
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032source arch/arm/mm/Kconfig
1033
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001034config IWMMXT
1035 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001036 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1037 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001038 help
1039 Enable support for iWMMXt context switching at run time if
1040 running on a CPU that supports it.
1041
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1043config XSCALE_PMU
1044 bool
1045 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1046 default y
1047
Jamie Iles0f4f0672010-02-02 20:23:15 +01001048config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001049 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1050 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001051 default y
1052 bool
1053
eric miao52108642010-12-13 09:42:34 +01001054config MULTI_IRQ_HANDLER
1055 bool
1056 help
1057 Allow each machine to specify it's own IRQ handler at run time.
1058
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001059if !MMU
1060source "arch/arm/Kconfig-nommu"
1061endif
1062
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001063config ARM_ERRATA_411920
1064 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001065 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001066 help
1067 Invalidation of the Instruction Cache operation can
1068 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1069 It does not affect the MPCore. This option enables the ARM Ltd.
1070 recommended workaround.
1071
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001072config ARM_ERRATA_430973
1073 bool "ARM errata: Stale prediction on replaced interworking branch"
1074 depends on CPU_V7
1075 help
1076 This option enables the workaround for the 430973 Cortex-A8
1077 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1078 interworking branch is replaced with another code sequence at the
1079 same virtual address, whether due to self-modifying code or virtual
1080 to physical address re-mapping, Cortex-A8 does not recover from the
1081 stale interworking branch prediction. This results in Cortex-A8
1082 executing the new code sequence in the incorrect ARM or Thumb state.
1083 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1084 and also flushes the branch target cache at every context switch.
1085 Note that setting specific bits in the ACTLR register may not be
1086 available in non-secure mode.
1087
Catalin Marinas855c5512009-04-30 17:06:15 +01001088config ARM_ERRATA_458693
1089 bool "ARM errata: Processor deadlock when a false hazard is created"
1090 depends on CPU_V7
1091 help
1092 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1093 erratum. For very specific sequences of memory operations, it is
1094 possible for a hazard condition intended for a cache line to instead
1095 be incorrectly associated with a different cache line. This false
1096 hazard might then cause a processor deadlock. The workaround enables
1097 the L1 caching of the NEON accesses and disables the PLD instruction
1098 in the ACTLR register. Note that setting specific bits in the ACTLR
1099 register may not be available in non-secure mode.
1100
Catalin Marinas0516e462009-04-30 17:06:20 +01001101config ARM_ERRATA_460075
1102 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1103 depends on CPU_V7
1104 help
1105 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1106 erratum. Any asynchronous access to the L2 cache may encounter a
1107 situation in which recent store transactions to the L2 cache are lost
1108 and overwritten with stale memory contents from external memory. The
1109 workaround disables the write-allocate mode for the L2 cache via the
1110 ACTLR register. Note that setting specific bits in the ACTLR register
1111 may not be available in non-secure mode.
1112
Will Deacon9f050272010-09-14 09:51:43 +01001113config ARM_ERRATA_742230
1114 bool "ARM errata: DMB operation may be faulty"
1115 depends on CPU_V7 && SMP
1116 help
1117 This option enables the workaround for the 742230 Cortex-A9
1118 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1119 between two write operations may not ensure the correct visibility
1120 ordering of the two writes. This workaround sets a specific bit in
1121 the diagnostic register of the Cortex-A9 which causes the DMB
1122 instruction to behave as a DSB, ensuring the correct behaviour of
1123 the two writes.
1124
Will Deacona672e992010-09-14 09:53:02 +01001125config ARM_ERRATA_742231
1126 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1127 depends on CPU_V7 && SMP
1128 help
1129 This option enables the workaround for the 742231 Cortex-A9
1130 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1131 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1132 accessing some data located in the same cache line, may get corrupted
1133 data due to bad handling of the address hazard when the line gets
1134 replaced from one of the CPUs at the same time as another CPU is
1135 accessing it. This workaround sets specific bits in the diagnostic
1136 register of the Cortex-A9 which reduces the linefill issuing
1137 capabilities of the processor.
1138
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001139config PL310_ERRATA_588369
1140 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1141 depends on CACHE_L2X0 && ARCH_OMAP4
1142 help
1143 The PL310 L2 cache controller implements three types of Clean &
1144 Invalidate maintenance operations: by Physical Address
1145 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1146 They are architecturally defined to behave as the execution of a
1147 clean operation followed immediately by an invalidate operation,
1148 both performing to the same memory location. This functionality
1149 is not correctly implemented in PL310 as clean lines are not
1150 invalidated as a result of these operations. Note that this errata
1151 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001152
1153config ARM_ERRATA_720789
1154 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1155 depends on CPU_V7 && SMP
1156 help
1157 This option enables the workaround for the 720789 Cortex-A9 (prior to
1158 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1159 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1160 As a consequence of this erratum, some TLB entries which should be
1161 invalidated are not, resulting in an incoherency in the system page
1162 tables. The workaround changes the TLB flushing routines to invalidate
1163 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001164
1165config ARM_ERRATA_743622
1166 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1167 depends on CPU_V7
1168 help
1169 This option enables the workaround for the 743622 Cortex-A9
1170 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1171 optimisation in the Cortex-A9 Store Buffer may lead to data
1172 corruption. This workaround sets a specific bit in the diagnostic
1173 register of the Cortex-A9 which disables the Store Buffer
1174 optimisation, preventing the defect from occurring. This has no
1175 visible impact on the overall performance or power consumption of the
1176 processor.
1177
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178endmenu
1179
1180source "arch/arm/common/Kconfig"
1181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182menu "Bus support"
1183
1184config ARM_AMBA
1185 bool
1186
1187config ISA
1188 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 help
1190 Find out whether you have ISA slots on your motherboard. ISA is the
1191 name of a bus system, i.e. the way the CPU talks to the other stuff
1192 inside your box. Other bus systems are PCI, EISA, MicroChannel
1193 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1194 newer boards don't support it. If you have ISA, say Y, otherwise N.
1195
Russell King065909b2006-01-04 15:44:16 +00001196# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197config ISA_DMA
1198 bool
Russell King065909b2006-01-04 15:44:16 +00001199 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200
Russell King065909b2006-01-04 15:44:16 +00001201# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001202config ISA_DMA_API
1203 bool
Al Viro5cae8412005-05-04 05:39:22 +01001204
Linus Torvalds1da177e2005-04-16 15:20:36 -07001205config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001206 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207 help
1208 Find out whether you have a PCI motherboard. PCI is the name of a
1209 bus system, i.e. the way the CPU talks to the other stuff inside
1210 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1211 VESA. If you have PCI, say Y, otherwise N.
1212
Anton Vorontsov52882172010-04-19 13:20:49 +01001213config PCI_DOMAINS
1214 bool
1215 depends on PCI
1216
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001217config PCI_NANOENGINE
1218 bool "BSE nanoEngine PCI support"
1219 depends on SA1100_NANOENGINE
1220 help
1221 Enable PCI on the BSE nanoEngine board.
1222
Matthew Wilcox36e23592007-07-10 10:54:40 -06001223config PCI_SYSCALL
1224 def_bool PCI
1225
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226# Select the host bridge type
1227config PCI_HOST_VIA82C505
1228 bool
1229 depends on PCI && ARCH_SHARK
1230 default y
1231
Mike Rapoporta0113a92007-11-25 08:55:34 +01001232config PCI_HOST_ITE8152
1233 bool
1234 depends on PCI && MACH_ARMCORE
1235 default y
1236 select DMABOUNCE
1237
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238source "drivers/pci/Kconfig"
1239
1240source "drivers/pcmcia/Kconfig"
1241
1242endmenu
1243
1244menu "Kernel Features"
1245
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001246source "kernel/time/Kconfig"
1247
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248config SMP
1249 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001250 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001251 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001252 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001253 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1254 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1255 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001256 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001257 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 help
1259 This enables support for systems with more than one CPU. If you have
1260 a system with only one CPU, like most personal computers, say N. If
1261 you have a system with more than one CPU, say Y.
1262
1263 If you say N here, the kernel will run on single and multiprocessor
1264 machines, but will use only one CPU of a multiprocessor machine. If
1265 you say Y here, the kernel will run on many, but not all, single
1266 processor machines. On a single processor machine, the kernel will
1267 run faster if you say N here.
1268
Adrian Bunk03502fa2008-02-03 15:50:21 +02001269 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001271 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272
1273 If you don't know what to do here, say N.
1274
Russell Kingf00ec482010-09-04 10:47:48 +01001275config SMP_ON_UP
1276 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1277 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001278 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001279 default y
1280 help
1281 SMP kernels contain instructions which fail on non-SMP processors.
1282 Enabling this option allows the kernel to modify itself to make
1283 these instructions safe. Disabling it allows about 1K of space
1284 savings.
1285
1286 If you don't know what to do here, say Y.
1287
Russell Kinga8cbcd92009-05-16 11:51:14 +01001288config HAVE_ARM_SCU
1289 bool
1290 depends on SMP
1291 help
1292 This option enables support for the ARM system coherency unit
1293
Russell Kingf32f4ce2009-05-16 12:14:21 +01001294config HAVE_ARM_TWD
1295 bool
1296 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001297 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001298 help
1299 This options enables support for the ARM timer and watchdog unit
1300
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001301choice
1302 prompt "Memory split"
1303 default VMSPLIT_3G
1304 help
1305 Select the desired split between kernel and user memory.
1306
1307 If you are not absolutely sure what you are doing, leave this
1308 option alone!
1309
1310 config VMSPLIT_3G
1311 bool "3G/1G user/kernel split"
1312 config VMSPLIT_2G
1313 bool "2G/2G user/kernel split"
1314 config VMSPLIT_1G
1315 bool "1G/3G user/kernel split"
1316endchoice
1317
1318config PAGE_OFFSET
1319 hex
1320 default 0x40000000 if VMSPLIT_1G
1321 default 0x80000000 if VMSPLIT_2G
1322 default 0xC0000000
1323
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324config NR_CPUS
1325 int "Maximum number of CPUs (2-32)"
1326 range 2 32
1327 depends on SMP
1328 default "4"
1329
Russell Kinga054a812005-11-02 22:24:33 +00001330config HOTPLUG_CPU
1331 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1332 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001333 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001334 help
1335 Say Y here to experiment with turning CPUs off and on. CPUs
1336 can be controlled through /sys/devices/system/cpu.
1337
Russell King37ee16a2005-11-08 19:08:05 +00001338config LOCAL_TIMERS
1339 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001340 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001341 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001342 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001343 help
1344 Enable support for local timers on SMP platforms, rather then the
1345 legacy IPI broadcast method. Local timers allows the system
1346 accounting to be spread across the timer interval, preventing a
1347 "thundering herd" at every timer tick.
1348
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001349source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350
Russell Kingf8065812006-03-02 22:41:59 +00001351config HZ
1352 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001353 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001354 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001355 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001356 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001357 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001358 default 100
1359
Catalin Marinas16c79652009-07-24 12:33:02 +01001360config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001361 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001362 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001363 select AEABI
1364 select ARM_ASM_UNIFIED
1365 help
1366 By enabling this option, the kernel will be compiled in
1367 Thumb-2 mode. A compiler/assembler that understand the unified
1368 ARM-Thumb syntax is needed.
1369
1370 If unsure, say N.
1371
Catalin Marinas0becb082009-07-24 12:32:53 +01001372config ARM_ASM_UNIFIED
1373 bool
1374
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001375config AEABI
1376 bool "Use the ARM EABI to compile the kernel"
1377 help
1378 This option allows for the kernel to be compiled using the latest
1379 ARM ABI (aka EABI). This is only useful if you are using a user
1380 space environment that is also compiled with EABI.
1381
1382 Since there are major incompatibilities between the legacy ABI and
1383 EABI, especially with regard to structure member alignment, this
1384 option also changes the kernel syscall calling convention to
1385 disambiguate both ABIs and allow for backward compatibility support
1386 (selected with CONFIG_OABI_COMPAT).
1387
1388 To use this you need GCC version 4.0.0 or later.
1389
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001390config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001391 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001392 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001393 default y
1394 help
1395 This option preserves the old syscall interface along with the
1396 new (ARM EABI) one. It also provides a compatibility layer to
1397 intercept syscalls that have structure arguments which layout
1398 in memory differs between the legacy ABI and the new ARM EABI
1399 (only for non "thumb" binaries). This option adds a tiny
1400 overhead to all syscalls and produces a slightly larger kernel.
1401 If you know you'll be using only pure EABI user space then you
1402 can say N here. If this option is not selected and you attempt
1403 to execute a legacy ABI binary then the result will be
1404 UNPREDICTABLE (in fact it can be predicted that it won't work
1405 at all). If in doubt say Y.
1406
Mel Gormaneb335752009-05-13 17:34:48 +01001407config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001408 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001409
Russell King05944d72006-11-30 20:43:51 +00001410config ARCH_SPARSEMEM_ENABLE
1411 bool
1412
Russell King07a2f732008-10-01 21:39:58 +01001413config ARCH_SPARSEMEM_DEFAULT
1414 def_bool ARCH_SPARSEMEM_ENABLE
1415
Russell King05944d72006-11-30 20:43:51 +00001416config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001417 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001418
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001419config HIGHMEM
1420 bool "High Memory Support (EXPERIMENTAL)"
1421 depends on MMU && EXPERIMENTAL
1422 help
1423 The address space of ARM processors is only 4 Gigabytes large
1424 and it has to accommodate user address space, kernel address
1425 space as well as some memory mapped IO. That means that, if you
1426 have a large amount of physical memory and/or IO, not all of the
1427 memory can be "permanently mapped" by the kernel. The physical
1428 memory that is not permanently mapped is called "high memory".
1429
1430 Depending on the selected kernel/user memory split, minimum
1431 vmalloc space and actual amount of RAM, you may not need this
1432 option which should result in a slightly faster kernel.
1433
1434 If unsure, say n.
1435
Russell King65cec8e2009-08-17 20:02:06 +01001436config HIGHPTE
1437 bool "Allocate 2nd-level pagetables from highmem"
1438 depends on HIGHMEM
1439 depends on !OUTER_CACHE
1440
Jamie Iles1b8873a2010-02-02 20:25:44 +01001441config HW_PERF_EVENTS
1442 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001443 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001444 default y
1445 help
1446 Enable hardware performance counter support for perf events. If
1447 disabled, perf events will use software events only.
1448
eric miao354e6f72010-06-25 09:46:09 +01001449config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001450 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001451 help
1452 This enables support for sparse irqs. This is useful in general
1453 as most CPUs have a fairly sparse array of IRQ vectors, which
1454 the irq_desc then maps directly on to. Systems with a high
1455 number of off-chip IRQs will want to treat this as
1456 experimental until they have been independently verified.
1457
Dave Hansen3f22ab22005-06-23 00:07:43 -07001458source "mm/Kconfig"
1459
Magnus Dammc1b2d972010-07-05 10:00:11 +01001460config FORCE_MAX_ZONEORDER
1461 int "Maximum zone order" if ARCH_SHMOBILE
1462 range 11 64 if ARCH_SHMOBILE
1463 default "9" if SA1111
1464 default "11"
1465 help
1466 The kernel memory allocator divides physically contiguous memory
1467 blocks into "zones", where each zone is a power of two number of
1468 pages. This option selects the largest power of two that the kernel
1469 keeps in the memory allocator. If you need to allocate very large
1470 blocks of physically contiguous memory, then you may need to
1471 increase this value.
1472
1473 This config option is actually maximum order plus one. For example,
1474 a value of 11 means that the largest free memory block is 2^10 pages.
1475
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476config LEDS
1477 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001478 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001479 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1481 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001482 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001483 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001484 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485 help
1486 If you say Y here, the LEDs on your machine will be used
1487 to provide useful information about your current system status.
1488
1489 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1490 be able to select which LEDs are active using the options below. If
1491 you are compiling a kernel for the EBSA-110 or the LART however, the
1492 red LED will simply flash regularly to indicate that the system is
1493 still functional. It is safe to say Y here if you have a CATS
1494 system, but the driver will do nothing.
1495
1496config LEDS_TIMER
1497 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001498 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1499 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001501 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 default y if ARCH_EBSA110
1503 help
1504 If you say Y here, one of the system LEDs (the green one on the
1505 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1506 will flash regularly to indicate that the system is still
1507 operational. This is mainly useful to kernel hackers who are
1508 debugging unstable kernels.
1509
1510 The LART uses the same LED for both Timer LED and CPU usage LED
1511 functions. You may choose to use both, but the Timer LED function
1512 will overrule the CPU usage LED.
1513
1514config LEDS_CPU
1515 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001516 !ARCH_OMAP) \
1517 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1518 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519 depends on LEDS
1520 help
1521 If you say Y here, the red LED will be used to give a good real
1522 time indication of CPU usage, by lighting whenever the idle task
1523 is not currently executing.
1524
1525 The LART uses the same LED for both Timer LED and CPU usage LED
1526 functions. You may choose to use both, but the Timer LED function
1527 will overrule the CPU usage LED.
1528
1529config ALIGNMENT_TRAP
1530 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001531 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001533 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001534 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001535 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1537 address divisible by 4. On 32-bit ARM processors, these non-aligned
1538 fetch/store instructions will be emulated in software if you say
1539 here, which has a severe performance impact. This is necessary for
1540 correct operation of some network protocols. With an IP-only
1541 configuration it is safe to say N, otherwise say Y.
1542
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001543config UACCESS_WITH_MEMCPY
1544 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1545 depends on MMU && EXPERIMENTAL
1546 default y if CPU_FEROCEON
1547 help
1548 Implement faster copy_to_user and clear_user methods for CPU
1549 cores where a 8-word STM instruction give significantly higher
1550 memory write throughput than a sequence of individual 32bit stores.
1551
1552 A possible side effect is a slight increase in scheduling latency
1553 between threads sharing the same address space if they invoke
1554 such copy operations with large buffers.
1555
1556 However, if the CPU data cache is using a write-allocate mode,
1557 this option is unlikely to provide any performance gain.
1558
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001559config SECCOMP
1560 bool
1561 prompt "Enable seccomp to safely compute untrusted bytecode"
1562 ---help---
1563 This kernel feature is useful for number crunching applications
1564 that may need to compute untrusted bytecode during their
1565 execution. By using pipes or other transports made available to
1566 the process as file descriptors supporting the read/write
1567 syscalls, it's possible to isolate those applications in
1568 their own address space using seccomp. Once seccomp is
1569 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1570 and the task is only allowed to execute a few safe syscalls
1571 defined by each seccomp mode.
1572
Nicolas Pitrec743f382010-05-24 23:55:42 -04001573config CC_STACKPROTECTOR
1574 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001575 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001576 help
1577 This option turns on the -fstack-protector GCC feature. This
1578 feature puts, at the beginning of functions, a canary value on
1579 the stack just before the return address, and validates
1580 the value just before actually returning. Stack based buffer
1581 overflows (that need to overwrite this return address) now also
1582 overwrite the canary, which gets detected and the attack is then
1583 neutralized via a kernel panic.
1584 This feature requires gcc version 4.2 or above.
1585
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001586config DEPRECATED_PARAM_STRUCT
1587 bool "Provide old way to pass kernel parameters"
1588 help
1589 This was deprecated in 2001 and announced to live on for 5 years.
1590 Some old boot loaders still use this way.
1591
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592endmenu
1593
1594menu "Boot options"
1595
1596# Compressed boot loader in ROM. Yes, we really want to ask about
1597# TEXT and BSS so we preserve their values in the config files.
1598config ZBOOT_ROM_TEXT
1599 hex "Compressed ROM boot loader base address"
1600 default "0"
1601 help
1602 The physical address at which the ROM-able zImage is to be
1603 placed in the target. Platforms which normally make use of
1604 ROM-able zImage formats normally set this to a suitable
1605 value in their defconfig file.
1606
1607 If ZBOOT_ROM is not enabled, this has no effect.
1608
1609config ZBOOT_ROM_BSS
1610 hex "Compressed ROM boot loader BSS address"
1611 default "0"
1612 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001613 The base address of an area of read/write memory in the target
1614 for the ROM-able zImage which must be available while the
1615 decompressor is running. It must be large enough to hold the
1616 entire decompressed kernel plus an additional 128 KiB.
1617 Platforms which normally make use of ROM-able zImage formats
1618 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619
1620 If ZBOOT_ROM is not enabled, this has no effect.
1621
1622config ZBOOT_ROM
1623 bool "Compressed boot loader in ROM/flash"
1624 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1625 help
1626 Say Y here if you intend to execute your compressed kernel image
1627 (zImage) directly from ROM or flash. If unsure, say N.
1628
1629config CMDLINE
1630 string "Default kernel command string"
1631 default ""
1632 help
1633 On some architectures (EBSA110 and CATS), there is currently no way
1634 for the boot loader to pass arguments to the kernel. For these
1635 architectures, you should supply some command-line options at build
1636 time by entering them here. As a minimum, you should specify the
1637 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1638
Alexander Holler92d20402010-02-16 19:04:53 +01001639config CMDLINE_FORCE
1640 bool "Always use the default kernel command string"
1641 depends on CMDLINE != ""
1642 help
1643 Always use the default kernel command string, even if the boot
1644 loader passes other arguments to the kernel.
1645 This is useful if you cannot or don't want to change the
1646 command-line options your boot loader passes to the kernel.
1647
1648 If unsure, say N.
1649
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650config XIP_KERNEL
1651 bool "Kernel Execute-In-Place from ROM"
1652 depends on !ZBOOT_ROM
1653 help
1654 Execute-In-Place allows the kernel to run from non-volatile storage
1655 directly addressable by the CPU, such as NOR flash. This saves RAM
1656 space since the text section of the kernel is not loaded from flash
1657 to RAM. Read-write sections, such as the data section and stack,
1658 are still copied to RAM. The XIP kernel is not compressed since
1659 it has to run directly from flash, so it will take more space to
1660 store it. The flash address used to link the kernel object files,
1661 and for storing it, is configuration dependent. Therefore, if you
1662 say Y here, you must know the proper physical address where to
1663 store the kernel image depending on your own flash memory usage.
1664
1665 Also note that the make target becomes "make xipImage" rather than
1666 "make zImage" or "make Image". The final kernel binary to put in
1667 ROM memory will be arch/arm/boot/xipImage.
1668
1669 If unsure, say N.
1670
1671config XIP_PHYS_ADDR
1672 hex "XIP Kernel Physical Location"
1673 depends on XIP_KERNEL
1674 default "0x00080000"
1675 help
1676 This is the physical address in your flash memory the kernel will
1677 be linked for and stored to. This address is dependent on your
1678 own flash usage.
1679
Richard Purdiec587e4a2007-02-06 21:29:00 +01001680config KEXEC
1681 bool "Kexec system call (EXPERIMENTAL)"
1682 depends on EXPERIMENTAL
1683 help
1684 kexec is a system call that implements the ability to shutdown your
1685 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001686 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001687 you can start any kernel with it, not just Linux.
1688
1689 It is an ongoing process to be certain the hardware in a machine
1690 is properly shutdown, so do not be surprised if this code does not
1691 initially work for you. It may help to enable device hotplugging
1692 support.
1693
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001694config ATAGS_PROC
1695 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001696 depends on KEXEC
1697 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001698 help
1699 Should the atags used to boot the kernel be exported in an "atags"
1700 file in procfs. Useful with kexec.
1701
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001702config CRASH_DUMP
1703 bool "Build kdump crash kernel (EXPERIMENTAL)"
1704 depends on EXPERIMENTAL
1705 help
1706 Generate crash dump after being started by kexec. This should
1707 be normally only set in special crash dump kernels which are
1708 loaded in the main kernel with kexec-tools into a specially
1709 reserved region and then later executed after a crash by
1710 kdump/kexec. The crash dump kernel must be compiled to a
1711 memory address not used by the main kernel
1712
1713 For more details see Documentation/kdump/kdump.txt
1714
Eric Miaoe69edc792010-07-05 15:56:50 +02001715config AUTO_ZRELADDR
1716 bool "Auto calculation of the decompressed kernel image address"
1717 depends on !ZBOOT_ROM && !ARCH_U300
1718 help
1719 ZRELADDR is the physical address where the decompressed kernel
1720 image will be placed. If AUTO_ZRELADDR is selected, the address
1721 will be determined at run-time by masking the current IP with
1722 0xf8000000. This assumes the zImage being placed in the first 128MB
1723 from start of memory.
1724
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725endmenu
1726
Russell Kingac9d7ef2008-08-18 17:26:00 +01001727menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728
Ben Dooks89c52ed2009-07-30 23:23:24 +01001729if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730
1731source "drivers/cpufreq/Kconfig"
1732
Yong Shen64f102b2010-10-21 21:18:59 +08001733config CPU_FREQ_IMX
1734 tristate "CPUfreq driver for i.MX CPUs"
1735 depends on ARCH_MXC && CPU_FREQ
1736 help
1737 This enables the CPUfreq driver for i.MX CPUs.
1738
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739config CPU_FREQ_SA1100
1740 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741
1742config CPU_FREQ_SA1110
1743 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744
1745config CPU_FREQ_INTEGRATOR
1746 tristate "CPUfreq driver for ARM Integrator CPUs"
1747 depends on ARCH_INTEGRATOR && CPU_FREQ
1748 default y
1749 help
1750 This enables the CPUfreq driver for ARM Integrator CPUs.
1751
1752 For details, take a look at <file:Documentation/cpu-freq>.
1753
1754 If in doubt, say Y.
1755
Russell King9e2697f2007-12-14 13:30:14 +00001756config CPU_FREQ_PXA
1757 bool
1758 depends on CPU_FREQ && ARCH_PXA && PXA25x
1759 default y
1760 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1761
Mark Brownb3748dd2009-06-15 11:23:20 +01001762config CPU_FREQ_S3C64XX
1763 bool "CPUfreq support for Samsung S3C64XX CPUs"
1764 depends on CPU_FREQ && CPU_S3C6410
1765
Ben Dooks9d56c022009-07-30 23:23:25 +01001766config CPU_FREQ_S3C
1767 bool
1768 help
1769 Internal configuration node for common cpufreq on Samsung SoC
1770
1771config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001772 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001773 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1774 select CPU_FREQ_S3C
1775 help
1776 This enables the CPUfreq driver for the Samsung S3C24XX family
1777 of CPUs.
1778
1779 For details, take a look at <file:Documentation/cpu-freq>.
1780
1781 If in doubt, say N.
1782
1783config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001784 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001785 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1786 help
1787 Compile in support for changing the PLL frequency from the
1788 S3C24XX series CPUfreq driver. The PLL takes time to settle
1789 after a frequency change, so by default it is not enabled.
1790
1791 This also means that the PLL tables for the selected CPU(s) will
1792 be built which may increase the size of the kernel image.
1793
1794config CPU_FREQ_S3C24XX_DEBUG
1795 bool "Debug CPUfreq Samsung driver core"
1796 depends on CPU_FREQ_S3C24XX
1797 help
1798 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1799
1800config CPU_FREQ_S3C24XX_IODEBUG
1801 bool "Debug CPUfreq Samsung driver IO timing"
1802 depends on CPU_FREQ_S3C24XX
1803 help
1804 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1805
Ben Dookse6d197a2009-07-30 23:23:42 +01001806config CPU_FREQ_S3C24XX_DEBUGFS
1807 bool "Export debugfs for CPUFreq"
1808 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1809 help
1810 Export status information via debugfs.
1811
Linus Torvalds1da177e2005-04-16 15:20:36 -07001812endif
1813
Russell Kingac9d7ef2008-08-18 17:26:00 +01001814source "drivers/cpuidle/Kconfig"
1815
1816endmenu
1817
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818menu "Floating point emulation"
1819
1820comment "At least one emulation must be selected"
1821
1822config FPE_NWFPE
1823 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001824 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 ---help---
1826 Say Y to include the NWFPE floating point emulator in the kernel.
1827 This is necessary to run most binaries. Linux does not currently
1828 support floating point hardware so you need to say Y here even if
1829 your machine has an FPA or floating point co-processor podule.
1830
1831 You may say N here if you are going to load the Acorn FPEmulator
1832 early in the bootup.
1833
1834config FPE_NWFPE_XP
1835 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001836 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001837 help
1838 Say Y to include 80-bit support in the kernel floating-point
1839 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1840 Note that gcc does not generate 80-bit operations by default,
1841 so in most cases this option only enlarges the size of the
1842 floating point emulator without any good reason.
1843
1844 You almost surely want to say N here.
1845
1846config FPE_FASTFPE
1847 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001848 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849 ---help---
1850 Say Y here to include the FAST floating point emulator in the kernel.
1851 This is an experimental much faster emulator which now also has full
1852 precision for the mantissa. It does not support any exceptions.
1853 It is very simple, and approximately 3-6 times faster than NWFPE.
1854
1855 It should be sufficient for most programs. It may be not suitable
1856 for scientific calculations, but you have to check this for yourself.
1857 If you do not feel you need a faster FP emulation you should better
1858 choose NWFPE.
1859
1860config VFP
1861 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001862 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863 help
1864 Say Y to include VFP support code in the kernel. This is needed
1865 if your hardware includes a VFP unit.
1866
1867 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1868 release notes and additional status information.
1869
1870 Say N if your target does not have VFP hardware.
1871
Catalin Marinas25ebee02007-09-25 15:22:24 +01001872config VFPv3
1873 bool
1874 depends on VFP
1875 default y if CPU_V7
1876
Catalin Marinasb5872db2008-01-10 19:16:17 +01001877config NEON
1878 bool "Advanced SIMD (NEON) Extension support"
1879 depends on VFPv3 && CPU_V7
1880 help
1881 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1882 Extension.
1883
Linus Torvalds1da177e2005-04-16 15:20:36 -07001884endmenu
1885
1886menu "Userspace binary formats"
1887
1888source "fs/Kconfig.binfmt"
1889
1890config ARTHUR
1891 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001892 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001893 help
1894 Say Y here to include the kernel code necessary if you want to run
1895 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1896 experimental; if this sounds frightening, say N and sleep in peace.
1897 You can also say M here to compile this support as a module (which
1898 will be called arthur).
1899
1900endmenu
1901
1902menu "Power management options"
1903
Russell Kingeceab4a2005-11-15 11:31:41 +00001904source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905
Johannes Bergf4cb5702007-12-08 02:14:00 +01001906config ARCH_SUSPEND_POSSIBLE
1907 def_bool y
1908
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909endmenu
1910
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001911source "net/Kconfig"
1912
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001913source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914
1915source "fs/Kconfig"
1916
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917source "arch/arm/Kconfig.debug"
1918
1919source "security/Kconfig"
1920
1921source "crypto/Kconfig"
1922
1923source "lib/Kconfig"