blob: 1f516766aed6441acd285e62a05730b574cfb15d [file] [log] [blame]
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
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010012 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060013 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010014 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080015 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040016 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010017 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
18 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053019 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080020 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010024 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010025 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080026 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010027 select HAVE_PERF_EVENTS
28 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010029 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000030 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010031 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010032 select HAVE_GENERIC_HARDIRQS
Thomas Gleixner25a56622011-03-24 12:02:11 +010033 select GENERIC_IRQ_SHOW
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020034 select GENERIC_IRQ_PROBE
35 select HARDIRQS_SW_RESEND
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053036 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020037 select GENERIC_PCI_IOMAP
Russell Kingfada8dc2012-03-27 10:44:23 +010038 select HAVE_BPF_JIT if NET
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 help
40 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000041 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000043 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 Europe. There is an ARM Linux project with a web page at
45 <http://www.arm.linux.org.uk/>.
46
Russell King74facff2011-06-02 11:16:22 +010047config ARM_HAS_SG_CHAIN
48 bool
49
Russell King1a189b92008-04-13 21:41:55 +010050config HAVE_PWM
51 bool
52
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010053config MIGHT_HAVE_PCI
54 bool
55
Ralf Baechle75e71532007-02-09 17:08:58 +000056config SYS_SUPPORTS_APM_EMULATION
57 bool
58
David Brownell0a938b92007-03-05 00:30:18 -080059config GENERIC_GPIO
60 bool
David Brownell0a938b92007-03-05 00:30:18 -080061
John Stultz5cfc8ee2010-03-24 00:22:36 +000062config ARCH_USES_GETTIMEOFFSET
63 bool
64 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010065
Kevin Hilman0567a0c2007-03-13 20:29:24 +010066config GENERIC_CLOCKEVENTS
67 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010068
Catalin Marinasa8655e82008-02-04 17:30:57 +010069config GENERIC_CLOCKEVENTS_BROADCAST
70 bool
71 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010072 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010073
Rob Herringbf9dd362011-03-04 23:51:59 +010074config KTIME_SCALAR
75 bool
76 default y
77
Linus Walleijbc581772009-09-15 17:30:37 +010078config HAVE_TCM
79 bool
80 select GENERIC_ALLOCATOR
81
Russell Kinge119bff2010-01-10 17:23:29 +000082config HAVE_PROC_CPU
83 bool
84
Al Viro5ea81762007-02-11 15:41:31 +000085config NO_IOPORT
86 bool
Al Viro5ea81762007-02-11 15:41:31 +000087
Linus Torvalds1da177e2005-04-16 15:20:36 -070088config EISA
89 bool
90 ---help---
91 The Extended Industry Standard Architecture (EISA) bus was
92 developed as an open alternative to the IBM MicroChannel bus.
93
94 The EISA bus provided some of the features of the IBM MicroChannel
95 bus while maintaining backward compatibility with cards made for
96 the older ISA bus. The EISA bus saw limited use between 1988 and
97 1995 when it was made obsolete by the PCI bus.
98
99 Say Y here if you are building a kernel for an EISA-based machine.
100
101 Otherwise, say N.
102
103config SBUS
104 bool
105
106config MCA
107 bool
108 help
109 MicroChannel Architecture is found in some IBM PS/2 machines and
110 laptops. It is a bus system similar to PCI or ISA. See
111 <file:Documentation/mca.txt> (and especially the web page given
112 there) before attempting to build an MCA bus kernel.
113
Russell Kingf16fb1e2007-04-28 09:59:37 +0100114config STACKTRACE_SUPPORT
115 bool
116 default y
117
Nicolas Pitref76e9152008-04-24 01:31:46 -0400118config HAVE_LATENCYTOP_SUPPORT
119 bool
120 depends on !SMP
121 default y
122
Russell Kingf16fb1e2007-04-28 09:59:37 +0100123config LOCKDEP_SUPPORT
124 bool
125 default y
126
Russell King7ad1bcb2006-08-27 12:07:02 +0100127config TRACE_IRQFLAGS_SUPPORT
128 bool
129 default y
130
Nick Piggin95c354f2008-01-30 13:31:20 +0100131config GENERIC_LOCKBREAK
132 bool
133 default y
134 depends on SMP && PREEMPT
135
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136config RWSEM_GENERIC_SPINLOCK
137 bool
138 default y
139
140config RWSEM_XCHGADD_ALGORITHM
141 bool
142
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143config ARCH_HAS_ILOG2_U32
144 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800145
146config ARCH_HAS_ILOG2_U64
147 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148
Ben Dooks89c52ed2009-07-30 23:23:24 +0100149config ARCH_HAS_CPUFREQ
150 bool
151 help
152 Internal node to signify that the ARCH has CPUFREQ support
153 and that the relevant menu configurations are displayed for
154 it.
155
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100156config ARCH_HAS_CPU_IDLE_WAIT
157 def_bool y
158
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800159config GENERIC_HWEIGHT
160 bool
161 default y
162
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163config GENERIC_CALIBRATE_DELAY
164 bool
165 default y
166
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100167config ARCH_MAY_HAVE_PC_FDC
168 bool
169
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800170config ZONE_DMA
171 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800172
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800173config NEED_DMA_MAP_STATE
174 def_bool y
175
Rob Herring58af4a22012-03-20 14:33:01 -0500176config ARCH_HAS_DMA_SET_COHERENT_MASK
177 bool
178
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179config GENERIC_ISA_DMA
180 bool
181
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182config FIQ
183 bool
184
Rob Herring13a50452012-02-07 09:28:22 -0600185config NEED_RET_TO_USER
186 bool
187
Al Viro034d2f52005-12-19 16:27:59 -0500188config ARCH_MTD_XIP
189 bool
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
Russell Kingdc21af92011-01-04 19:09:43 +0000199config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100200 bool "Patch physical to virtual translations at runtime" if EMBEDDED
201 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100202 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000203 depends on !ARCH_REALVIEW || !SPARSEMEM
204 help
Russell King111e9a52011-05-12 10:02:42 +0100205 Patch phys-to-virt and virt-to-phys translation functions at
206 boot and module load time according to the position of the
207 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000208
Russell King111e9a52011-05-12 10:02:42 +0100209 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100210 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000211
Russell Kingc1beced2011-08-10 10:23:45 +0100212 Only disable this option if you know that you do not require
213 this feature (eg, building a kernel for a single machine) and
214 you need to shrink the kernel to the minimal size.
215
Rob Herringc334bc12012-03-04 22:03:33 -0600216config NEED_MACH_IO_H
217 bool
218 help
219 Select this when mach/io.h is required to provide special
220 definitions for this platform. The need for mach/io.h should
221 be avoided when possible.
222
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400223config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400224 bool
Russell King111e9a52011-05-12 10:02:42 +0100225 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400226 Select this when mach/memory.h is required to provide special
227 definitions for this platform. The need for mach/memory.h should
228 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400229
230config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100231 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400232 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100233 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400234 help
235 Please provide the physical address corresponding to the
236 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000237
Simon Glass87e040b2011-08-16 23:44:26 +0100238config GENERIC_BUG
239 def_bool y
240 depends on BUG
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242source "init/Kconfig"
243
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700244source "kernel/Kconfig.freezer"
245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246menu "System Type"
247
Hyok S. Choi3c427972009-07-24 12:35:00 +0100248config MMU
249 bool "MMU-based Paged Memory Management Support"
250 default y
251 help
252 Select if you want MMU-based virtualised addressing space
253 support by paged memory management. If unsure, say 'Y'.
254
Russell Kingccf50e22010-03-15 19:03:06 +0000255#
256# The "ARM system type" choice list is ordered alphabetically by option
257# text. Please add new entries in the option alphabetic order.
258#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259choice
260 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000261 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100263config ARCH_INTEGRATOR
264 bool "ARM Ltd. Integrator family"
265 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100266 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900268 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100269 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000270 select ICST
Russell King13edd862010-01-15 21:49:23 +0000271 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000272 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000273 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600274 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400275 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100276 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
278 Support for ARM's Integrator platform.
279
280config ARCH_REALVIEW
281 bool "ARM Ltd. RealView family"
282 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100283 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900284 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000285 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100286 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100287 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000288 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000289 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000290 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100291 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400292 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 help
294 This enables support for ARM Ltd RealView boards.
295
296config ARCH_VERSATILE
297 bool "ARM Ltd. Versatile family"
298 select ARM_AMBA
299 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100300 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900301 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000302 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100303 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100304 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000305 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000306 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000307 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000308 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100309 help
310 This enables support for ARM Ltd Versatile board.
311
Russell Kingceade892010-02-11 21:44:53 +0000312config ARCH_VEXPRESS
313 bool "ARM Ltd. Versatile Express family"
314 select ARCH_WANT_OPTIONAL_GPIOLIB
315 select ARM_AMBA
316 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100317 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900318 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000319 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000320 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100321 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000322 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000323 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000324 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000325 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000326 help
327 This enables support for the ARM Ltd Versatile Express boards.
328
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100329config ARCH_AT91
330 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100331 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700332 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100333 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100334 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500335 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100337 This enables support for systems based on the Atmel AT91RM9200,
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100338 AT91SAM9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100339
Russell Kingccf50e22010-03-15 19:03:06 +0000340config ARCH_BCMRING
341 bool "Broadcom BCMRING"
342 depends on MMU
343 select CPU_V6
344 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100345 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100346 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000347 select GENERIC_CLOCKEVENTS
348 select ARCH_WANT_OPTIONAL_GPIOLIB
349 help
350 Support for Broadcom's BCMRing platform.
351
Rob Herring220e6cf2011-06-07 10:02:55 -0500352config ARCH_HIGHBANK
353 bool "Calxeda Highbank-based"
354 select ARCH_WANT_OPTIONAL_GPIOLIB
355 select ARM_AMBA
356 select ARM_GIC
357 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000358 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500359 select CLKDEV_LOOKUP
360 select CPU_V7
361 select GENERIC_CLOCKEVENTS
362 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000363 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600364 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500365 select USE_OF
366 help
367 Support for the Calxeda Highbank SoC based boards.
368
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100370 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000371 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000372 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400373 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000374 help
375 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300377config ARCH_CNS3XXX
378 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200379 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300380 select GENERIC_CLOCKEVENTS
381 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000382 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100383 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400384 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300385 help
386 Support for Cavium Networks CNS3XXX platform.
387
Russell King788c9702009-04-26 14:21:59 +0100388config ARCH_GEMINI
389 bool "Cortina Systems Gemini"
390 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100391 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000392 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100393 help
394 Support for the Cortina Systems Gemini family SoCs
395
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200396config ARCH_PRIMA2
397 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
398 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200399 select NO_IOPORT
400 select GENERIC_CLOCKEVENTS
401 select CLKDEV_LOOKUP
402 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000403 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200404 select USE_OF
405 select ZONE_DMA
406 help
407 Support for CSR SiRFSoC ARM Cortex A9 Platform
408
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409config ARCH_EBSA110
410 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000411 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100412 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000413 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000414 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600415 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400416 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 help
418 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000419 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 Ethernet interface, two PCMCIA sockets, two serial ports and a
421 parallel port.
422
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000423config ARCH_EP93XX
424 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000426 select ARM_AMBA
427 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100428 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700429 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100430 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000431 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100432 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000433 help
434 This enables support for the Cirrus EP93xx series of CPUs.
435
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436config ARCH_FOOTBRIDGE
437 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000440 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200441 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600442 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400443 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000444 help
445 Support for systems based on the DC21285 companion chip
446 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Russell King788c9702009-04-26 14:21:59 +0100448config ARCH_MXC
449 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100450 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100451 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100452 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100453 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800454 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200455 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100456 help
457 Support for Freescale MXC/iMX-based family of processors
458
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800459config ARCH_MXS
460 bool "Freescale MXS-based"
461 select GENERIC_CLOCKEVENTS
462 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100463 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100464 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800465 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800466 help
467 Support for Freescale MXS-based family of processors
468
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100469config ARCH_NETX
470 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100471 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000472 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100474 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000475 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100476 This enables support for systems based on the Hilscher NetX Soc
477
478config ARCH_H720X
479 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100481 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000482 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100483 help
484 This enables support for systems based on the Hynix HMS720x
485
Russell King3b938be2007-05-12 11:25:44 +0100486config ARCH_IOP13XX
487 bool "IOP13xx-based"
488 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000489 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100490 select PLAT_IOP
491 select PCI
492 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100493 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600494 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400495 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600496 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100497 help
498 Support for Intel's IOP13XX (XScale) family of processors.
499
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100500config ARCH_IOP32X
501 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100502 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000503 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600504 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600505 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100506 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100507 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100508 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000509 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100510 Support for Intel's 80219 and IOP32X (XScale) family of
511 processors.
512
513config ARCH_IOP33X
514 bool "IOP33x-based"
515 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000516 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600517 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600518 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100519 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100520 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100521 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100522 help
523 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524
Russell King3b938be2007-05-12 11:25:44 +0100525config ARCH_IXP23XX
526 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100527 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000528 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100529 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000530 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600531 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400532 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100533 help
Russell King3b938be2007-05-12 11:25:44 +0100534 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535
536config ARCH_IXP2000
537 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100538 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000539 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100540 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000541 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600542 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400543 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000544 help
545 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546
Russell King3b938be2007-05-12 11:25:44 +0100547config ARCH_IXP4XX
548 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100549 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500550 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100551 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000552 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100553 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100554 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100555 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600556 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100557 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100558 help
Russell King3b938be2007-05-12 11:25:44 +0100559 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100560
Saeed Bisharaedabd382009-08-06 15:12:43 +0300561config ARCH_DOVE
562 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300563 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300564 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300565 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300566 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600567 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300568 select PLAT_ORION
569 help
570 Support for the Marvell Dove SoC 88AP510
571
Saeed Bishara651c74c2008-06-22 22:45:06 +0200572config ARCH_KIRKWOOD
573 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000574 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200575 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700576 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200577 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600578 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200579 select PLAT_ORION
580 help
581 Support for the following Marvell Kirkwood series SoCs:
582 88F6180, 88F6192 and 88F6281.
583
Kevin Wells40805942010-07-27 08:49:04 -0700584config ARCH_LPC32XX
585 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100586 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700587 select CPU_ARM926T
588 select ARCH_REQUIRE_GPIOLIB
589 select HAVE_IDE
590 select ARM_AMBA
591 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100592 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700593 select GENERIC_CLOCKEVENTS
594 help
595 Support for the NXP LPC32XX family of processors
596
Russell King788c9702009-04-26 14:21:59 +0100597config ARCH_MV78XX0
598 bool "Marvell MV78xx0"
599 select CPU_FEROCEON
600 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700601 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100602 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600603 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100604 select PLAT_ORION
605 help
606 Support for the following Marvell MV78xx0 series SoCs:
607 MV781x0, MV782x0.
608
609config ARCH_ORION5X
610 bool "Marvell Orion"
611 depends on MMU
612 select CPU_FEROCEON
613 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700614 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100615 select GENERIC_CLOCKEVENTS
616 select PLAT_ORION
617 help
618 Support for the following Marvell Orion 5x series SoCs:
619 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
620 Orion-2 (5281), Orion-1-90 (6183).
621
622config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500623 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100624 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100625 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100627 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800628 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100629 select TICK_ONESHOT
630 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400631 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800632 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100633 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500634 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100635
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100636config ARCH_KS8695
637 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000638 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100639 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000640 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400641 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100642 help
643 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
644 System-on-Chip devices.
645
Russell King788c9702009-04-26 14:21:59 +0100646config ARCH_W90X900
647 bool "Nuvoton W90X900 CPU"
648 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100649 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100650 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100651 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100652 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200653 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100654 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
655 At present, the w90x900 has been renamed nuc900, regarding
656 the ARM series product line, you can login the following
657 link address to know more.
658
659 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
660 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400661
Erik Gillingc5f80062010-01-21 16:53:02 -0800662config ARCH_TEGRA
663 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000664 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100665 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800666 select GENERIC_CLOCKEVENTS
667 select GENERIC_GPIO
668 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000669 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000670 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600671 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700672 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800673 help
674 This enables support for NVIDIA Tegra based systems (Tegra APX,
675 Tegra 6xx and Tegra 2 series).
676
Jamie Ilesaf756552011-07-25 17:36:42 +0100677config ARCH_PICOXCELL
678 bool "Picochip picoXcell"
679 select ARCH_REQUIRE_GPIOLIB
680 select ARM_PATCH_PHYS_VIRT
681 select ARM_VIC
682 select CPU_V6K
683 select DW_APB_TIMER
684 select GENERIC_CLOCKEVENTS
685 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100686 select HAVE_TCM
687 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000688 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100689 select USE_OF
690 help
691 This enables support for systems based on the Picochip picoXcell
692 family of Femtocell devices. The picoxcell support requires device tree
693 for all boards.
694
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100695config ARCH_PNX4008
696 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000697 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100698 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000699 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100700 help
701 This enables support for Philips PNX4008 mobile platform.
702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700704 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100705 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500706 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100707 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100708 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100709 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700710 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100711 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800712 select GPIO_PXA
Russell Kinga88264c2007-11-12 22:45:16 +0000713 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800714 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800715 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800716 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800717 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200718 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200719 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000720 help
eric miao2c8086a2007-09-11 19:13:17 -0700721 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722
Russell King788c9702009-04-26 14:21:59 +0100723config ARCH_MSM
724 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500725 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800726 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700727 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800728 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800729 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800730 Support for Qualcomm MSM/QSD based systems. This runs on the
731 apps processor of the MSM/QSD and depends on a shared memory
732 interface to the modem processor which runs the baseband
733 stack and controls some vital subsystems
734 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800735
Magnus Dammc793c1b2010-02-05 11:14:49 +0000736config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900737 bool "Renesas SH-Mobile / R-Mobile"
738 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900739 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900740 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000741 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900742 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000743 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900744 select NO_IOPORT
745 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000746 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200747 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400748 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000749 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900750 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000751
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752config ARCH_RPC
753 bool "RiscPC"
754 select ARCH_ACORN
755 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100756 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100757 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000758 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000759 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100760 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000761 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200762 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600763 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400764 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 help
766 On the Acorn Risc-PC, Linux can support the internal IDE disk and
767 CD-ROM interface, serial and parallel port, and the floppy drive.
768
769config ARCH_SA1100
770 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100771 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000772 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100773 select ISA
Russell King05944d72006-11-30 20:43:51 +0000774 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500775 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100776 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000777 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100778 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800779 select CLKDEV_LOOKUP
Russell King3e238be2008-04-14 23:03:10 +0100780 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700781 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200782 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400783 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100784 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000785 help
786 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700787
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900788config ARCH_S3C24XX
789 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800790 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100791 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700792 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900793 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000794 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900795 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900796 select HAVE_S3C_RTC if RTC_CLASS
797 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600798 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900800 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
801 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
802 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
803 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900804
Ben Dooksa08ab632008-10-21 14:06:39 +0100805config ARCH_S3C64XX
806 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000807 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900808 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900809 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100810 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900811 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900812 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900813 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000814 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100815 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900816 select ARCH_REQUIRE_GPIOLIB
817 select SAMSUNG_CLKSRC
818 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900819 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900820 select S3C_DEV_NAND
821 select USB_ARCH_HAS_OHCI
822 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900823 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900824 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100825 help
826 Samsung S3C64XX series based systems
827
Kukjin Kim49b7a492010-09-07 15:47:18 +0900828config ARCH_S5P64X0
829 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900830 select CPU_V6
831 select GENERIC_GPIO
832 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900833 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900834 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900835 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900836 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900837 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900838 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900839 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900840 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
841 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900842
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200843config ARCH_S5PC100
844 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900845 select GENERIC_GPIO
846 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900847 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900848 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900849 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900850 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900851 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900852 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900853 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200854 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900855
Kukjin Kim170f4e42010-02-24 16:40:44 +0900856config ARCH_S5PV210
857 bool "Samsung S5PV210/S5PC110"
858 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900859 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900860 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900861 select GENERIC_GPIO
862 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900863 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900864 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900865 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900866 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900867 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900868 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900869 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400870 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900871 help
872 Samsung S5PV210/S5PC110 series based systems
873
Kukjin Kim83014572011-11-06 13:54:56 +0900874config ARCH_EXYNOS
875 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900876 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900877 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900878 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900879 select GENERIC_GPIO
880 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900881 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900882 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900883 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900884 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900885 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900886 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400887 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900888 help
Kukjin Kim83014572011-11-06 13:54:56 +0900889 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900890
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891config ARCH_SHARK
892 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000893 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100894 select ISA
895 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100896 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100897 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000898 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400899 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600900 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000901 help
902 Support for the StrongARM based Digital DNARD machine, also known
903 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904
Linus Walleijd98aac72009-04-27 10:21:46 +0100905config ARCH_U300
906 bool "ST-Ericsson U300 Series"
907 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100908 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100909 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100910 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100911 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200912 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100913 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100914 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100915 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900916 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100917 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100918 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100919 help
920 Support for ST-Ericsson U300 series mobile platforms.
921
Russell Kingccf50e22010-03-15 19:03:06 +0000922config ARCH_U8500
923 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700924 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000925 select CPU_V7
926 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000927 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100928 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100929 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100930 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000931 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000932 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000933 help
934 Support for ST-Ericsson's Ux500 architecture
935
936config ARCH_NOMADIK
937 bool "STMicroelectronics Nomadik"
938 select ARM_AMBA
939 select ARM_VIC
940 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100941 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000942 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000943 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000944 select ARCH_REQUIRE_GPIOLIB
945 help
946 Support for the Nomadik platform by ST-Ericsson
947
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100948config ARCH_DAVINCI
949 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100950 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700951 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100952 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700953 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100954 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700955 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100956 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530957 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100958 help
959 Support for TI's DaVinci platform.
960
Russell King3b938be2007-05-12 11:25:44 +0100961config ARCH_OMAP
962 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700963 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700964 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100965 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700966 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700967 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800968 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100969 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200970 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100971
viresh kumarcee37e52010-04-01 12:31:05 +0100972config PLAT_SPEAR
973 bool "ST SPEAr"
974 select ARM_AMBA
975 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100976 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100977 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100978 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100979 select HAVE_CLK
980 help
981 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
982
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100983config ARCH_VT8500
984 bool "VIA/WonderMedia 85xx"
985 select CPU_ARM926T
986 select GENERIC_GPIO
987 select ARCH_HAS_CPUFREQ
988 select GENERIC_CLOCKEVENTS
989 select ARCH_REQUIRE_GPIOLIB
990 select HAVE_PWM
991 help
992 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800993
John Linnb85a3ef2011-06-20 11:47:27 -0600994config ARCH_ZYNQ
995 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800996 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800997 select GENERIC_CLOCKEVENTS
998 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600999 select ARM_GIC
1000 select ARM_AMBA
1001 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001002 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001003 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001004 help
John Linnb85a3ef2011-06-20 11:47:27 -06001005 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006endchoice
1007
Russell Kingccf50e22010-03-15 19:03:06 +00001008#
1009# This is sorted alphabetically by mach-* pathname. However, plat-*
1010# Kconfigs may be included either alphabetically (according to the
1011# plat- suffix) or along side the corresponding mach-* source.
1012#
Russell King95b8f202010-01-14 11:43:54 +00001013source "arch/arm/mach-at91/Kconfig"
1014
1015source "arch/arm/mach-bcmring/Kconfig"
1016
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017source "arch/arm/mach-clps711x/Kconfig"
1018
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001019source "arch/arm/mach-cns3xxx/Kconfig"
1020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-davinci/Kconfig"
1022
1023source "arch/arm/mach-dove/Kconfig"
1024
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001025source "arch/arm/mach-ep93xx/Kconfig"
1026
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027source "arch/arm/mach-footbridge/Kconfig"
1028
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001029source "arch/arm/mach-gemini/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/mach-h720x/Kconfig"
1032
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033source "arch/arm/mach-integrator/Kconfig"
1034
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001035source "arch/arm/mach-iop32x/Kconfig"
1036
1037source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Dan Williams285f5fa2006-12-07 02:59:39 +01001039source "arch/arm/mach-iop13xx/Kconfig"
1040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041source "arch/arm/mach-ixp4xx/Kconfig"
1042
1043source "arch/arm/mach-ixp2000/Kconfig"
1044
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001045source "arch/arm/mach-ixp23xx/Kconfig"
1046
Russell King95b8f202010-01-14 11:43:54 +00001047source "arch/arm/mach-kirkwood/Kconfig"
1048
1049source "arch/arm/mach-ks8695/Kconfig"
1050
Kevin Wells40805942010-07-27 08:49:04 -07001051source "arch/arm/mach-lpc32xx/Kconfig"
1052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-msm/Kconfig"
1054
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001055source "arch/arm/mach-mv78xx0/Kconfig"
1056
Russell King95b8f202010-01-14 11:43:54 +00001057source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001059source "arch/arm/mach-mxs/Kconfig"
1060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/mach-nomadik/Kconfig"
1064source "arch/arm/plat-nomadik/Kconfig"
1065
Tony Lindgrend48af152005-07-10 19:58:17 +01001066source "arch/arm/plat-omap/Kconfig"
1067
1068source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069
Tony Lindgren1dbae812005-11-10 14:26:51 +00001070source "arch/arm/mach-omap2/Kconfig"
1071
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001072source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001073
Russell King95b8f202010-01-14 11:43:54 +00001074source "arch/arm/mach-pxa/Kconfig"
1075source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Russell King95b8f202010-01-14 11:43:54 +00001077source "arch/arm/mach-mmp/Kconfig"
1078
1079source "arch/arm/mach-realview/Kconfig"
1080
1081source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001082
Ben Dookscf383672009-11-10 00:14:58 +00001083source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001084source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001085source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001086
viresh kumarcee37e52010-04-01 12:31:05 +01001087source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001088
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001089source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001090if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001091source "arch/arm/mach-s3c2412/Kconfig"
1092source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001093endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094
Ben Dooksa08ab632008-10-21 14:06:39 +01001095if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001096source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001097endif
1098
Kukjin Kim49b7a492010-09-07 15:47:18 +09001099source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001100
Byungho Min5a7652f2009-06-23 21:39:42 +09001101source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001102
Kukjin Kim170f4e42010-02-24 16:40:44 +09001103source "arch/arm/mach-s5pv210/Kconfig"
1104
Kukjin Kim83014572011-11-06 13:54:56 +09001105source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001106
Russell King882d01f2010-03-02 23:40:15 +00001107source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108
Erik Gillingc5f80062010-01-21 16:53:02 -08001109source "arch/arm/mach-tegra/Kconfig"
1110
Russell King95b8f202010-01-14 11:43:54 +00001111source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001112
Russell King95b8f202010-01-14 11:43:54 +00001113source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114
1115source "arch/arm/mach-versatile/Kconfig"
1116
Russell Kingceade892010-02-11 21:44:53 +00001117source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001118source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001119
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001120source "arch/arm/mach-vt8500/Kconfig"
1121
wanzongshun7ec80dd2008-12-03 03:55:38 +01001122source "arch/arm/mach-w90x900/Kconfig"
1123
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124# Definitions to make life easier
1125config ARCH_ACORN
1126 bool
1127
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001128config PLAT_IOP
1129 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001130 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001131
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001132config PLAT_ORION
1133 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001134 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001135 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001136
Eric Miaobd5ce432009-01-20 12:06:01 +08001137config PLAT_PXA
1138 bool
1139
Russell Kingf4b8b312010-01-14 12:48:06 +00001140config PLAT_VERSATILE
1141 bool
1142
Russell Kinge3887712010-01-14 13:30:16 +00001143config ARM_TIMER_SP804
1144 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001145 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001146 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001147
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148source arch/arm/mm/Kconfig
1149
Russell King958cab02011-12-11 10:04:00 +00001150config ARM_NR_BANKS
1151 int
1152 default 16 if ARCH_EP93XX
1153 default 8
1154
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001155config IWMMXT
1156 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001157 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1158 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001159 help
1160 Enable support for iWMMXt context switching at run time if
1161 running on a CPU that supports it.
1162
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163config XSCALE_PMU
1164 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001165 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166 default y
1167
Jamie Iles0f4f0672010-02-02 20:23:15 +01001168config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001169 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001170 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001171 default y
1172 bool
1173
eric miao52108642010-12-13 09:42:34 +01001174config MULTI_IRQ_HANDLER
1175 bool
1176 help
1177 Allow each machine to specify it's own IRQ handler at run time.
1178
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001179if !MMU
1180source "arch/arm/Kconfig-nommu"
1181endif
1182
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001183config ARM_ERRATA_411920
1184 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001185 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001186 help
1187 Invalidation of the Instruction Cache operation can
1188 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1189 It does not affect the MPCore. This option enables the ARM Ltd.
1190 recommended workaround.
1191
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001192config ARM_ERRATA_430973
1193 bool "ARM errata: Stale prediction on replaced interworking branch"
1194 depends on CPU_V7
1195 help
1196 This option enables the workaround for the 430973 Cortex-A8
1197 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1198 interworking branch is replaced with another code sequence at the
1199 same virtual address, whether due to self-modifying code or virtual
1200 to physical address re-mapping, Cortex-A8 does not recover from the
1201 stale interworking branch prediction. This results in Cortex-A8
1202 executing the new code sequence in the incorrect ARM or Thumb state.
1203 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1204 and also flushes the branch target cache at every context switch.
1205 Note that setting specific bits in the ACTLR register may not be
1206 available in non-secure mode.
1207
Catalin Marinas855c5512009-04-30 17:06:15 +01001208config ARM_ERRATA_458693
1209 bool "ARM errata: Processor deadlock when a false hazard is created"
1210 depends on CPU_V7
1211 help
1212 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1213 erratum. For very specific sequences of memory operations, it is
1214 possible for a hazard condition intended for a cache line to instead
1215 be incorrectly associated with a different cache line. This false
1216 hazard might then cause a processor deadlock. The workaround enables
1217 the L1 caching of the NEON accesses and disables the PLD instruction
1218 in the ACTLR register. Note that setting specific bits in the ACTLR
1219 register may not be available in non-secure mode.
1220
Catalin Marinas0516e462009-04-30 17:06:20 +01001221config ARM_ERRATA_460075
1222 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1223 depends on CPU_V7
1224 help
1225 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1226 erratum. Any asynchronous access to the L2 cache may encounter a
1227 situation in which recent store transactions to the L2 cache are lost
1228 and overwritten with stale memory contents from external memory. The
1229 workaround disables the write-allocate mode for the L2 cache via the
1230 ACTLR register. Note that setting specific bits in the ACTLR register
1231 may not be available in non-secure mode.
1232
Will Deacon9f050272010-09-14 09:51:43 +01001233config ARM_ERRATA_742230
1234 bool "ARM errata: DMB operation may be faulty"
1235 depends on CPU_V7 && SMP
1236 help
1237 This option enables the workaround for the 742230 Cortex-A9
1238 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1239 between two write operations may not ensure the correct visibility
1240 ordering of the two writes. This workaround sets a specific bit in
1241 the diagnostic register of the Cortex-A9 which causes the DMB
1242 instruction to behave as a DSB, ensuring the correct behaviour of
1243 the two writes.
1244
Will Deacona672e992010-09-14 09:53:02 +01001245config ARM_ERRATA_742231
1246 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1247 depends on CPU_V7 && SMP
1248 help
1249 This option enables the workaround for the 742231 Cortex-A9
1250 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1251 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1252 accessing some data located in the same cache line, may get corrupted
1253 data due to bad handling of the address hazard when the line gets
1254 replaced from one of the CPUs at the same time as another CPU is
1255 accessing it. This workaround sets specific bits in the diagnostic
1256 register of the Cortex-A9 which reduces the linefill issuing
1257 capabilities of the processor.
1258
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001259config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001260 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001261 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001262 help
1263 The PL310 L2 cache controller implements three types of Clean &
1264 Invalidate maintenance operations: by Physical Address
1265 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1266 They are architecturally defined to behave as the execution of a
1267 clean operation followed immediately by an invalidate operation,
1268 both performing to the same memory location. This functionality
1269 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001270 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001271
1272config ARM_ERRATA_720789
1273 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001274 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001275 help
1276 This option enables the workaround for the 720789 Cortex-A9 (prior to
1277 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1278 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1279 As a consequence of this erratum, some TLB entries which should be
1280 invalidated are not, resulting in an incoherency in the system page
1281 tables. The workaround changes the TLB flushing routines to invalidate
1282 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001283
Russell King1f0090a2011-03-16 23:35:25 +00001284config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001285 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001286 depends on CACHE_L2X0
1287 help
1288 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1289 operation (offset 0x7FC). This operation runs in background so that
1290 PL310 can handle normal accesses while it is in progress. Under very
1291 rare circumstances, due to this erratum, write data can be lost when
1292 PL310 treats a cacheable write transaction during a Clean &
1293 Invalidate by Way operation.
1294
Will Deacon475d92f2010-09-28 14:02:02 +01001295config ARM_ERRATA_743622
1296 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1297 depends on CPU_V7
1298 help
1299 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001300 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001301 optimisation in the Cortex-A9 Store Buffer may lead to data
1302 corruption. This workaround sets a specific bit in the diagnostic
1303 register of the Cortex-A9 which disables the Store Buffer
1304 optimisation, preventing the defect from occurring. This has no
1305 visible impact on the overall performance or power consumption of the
1306 processor.
1307
Will Deacon9a27c272011-02-18 16:36:35 +01001308config ARM_ERRATA_751472
1309 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001310 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001311 help
1312 This option enables the workaround for the 751472 Cortex-A9 (prior
1313 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1314 completion of a following broadcasted operation if the second
1315 operation is received by a CPU before the ICIALLUIS has completed,
1316 potentially leading to corrupted entries in the cache or TLB.
1317
Will Deaconfa0ce402011-11-14 17:24:57 +01001318config PL310_ERRATA_753970
1319 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001320 depends on CACHE_PL310
1321 help
1322 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1323
1324 Under some condition the effect of cache sync operation on
1325 the store buffer still remains when the operation completes.
1326 This means that the store buffer is always asked to drain and
1327 this prevents it from merging any further writes. The workaround
1328 is to replace the normal offset of cache sync operation (0x730)
1329 by another offset targeting an unmapped PL310 register 0x740.
1330 This has the same effect as the cache sync operation: store buffer
1331 drain and waiting for all buffers empty.
1332
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001333config ARM_ERRATA_754322
1334 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1335 depends on CPU_V7
1336 help
1337 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1338 r3p*) erratum. A speculative memory access may cause a page table walk
1339 which starts prior to an ASID switch but completes afterwards. This
1340 can populate the micro-TLB with a stale entry which may be hit with
1341 the new ASID. This workaround places two dsb instructions in the mm
1342 switching code so that no page table walks can cross the ASID switch.
1343
Will Deacon5dab26a2011-03-04 12:38:54 +01001344config ARM_ERRATA_754327
1345 bool "ARM errata: no automatic Store Buffer drain"
1346 depends on CPU_V7 && SMP
1347 help
1348 This option enables the workaround for the 754327 Cortex-A9 (prior to
1349 r2p0) erratum. The Store Buffer does not have any automatic draining
1350 mechanism and therefore a livelock may occur if an external agent
1351 continuously polls a memory location waiting to observe an update.
1352 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1353 written polling loops from denying visibility of updates to memory.
1354
Catalin Marinas145e10e2011-08-15 11:04:41 +01001355config ARM_ERRATA_364296
1356 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1357 depends on CPU_V6 && !SMP
1358 help
1359 This options enables the workaround for the 364296 ARM1136
1360 r0p2 erratum (possible cache data corruption with
1361 hit-under-miss enabled). It sets the undocumented bit 31 in
1362 the auxiliary control register and the FI bit in the control
1363 register, thus disabling hit-under-miss without putting the
1364 processor into full low interrupt latency mode. ARM11MPCore
1365 is not affected.
1366
Will Deaconf630c1b2011-09-15 11:45:15 +01001367config ARM_ERRATA_764369
1368 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1369 depends on CPU_V7 && SMP
1370 help
1371 This option enables the workaround for erratum 764369
1372 affecting Cortex-A9 MPCore with two or more processors (all
1373 current revisions). Under certain timing circumstances, a data
1374 cache line maintenance operation by MVA targeting an Inner
1375 Shareable memory region may fail to proceed up to either the
1376 Point of Coherency or to the Point of Unification of the
1377 system. This workaround adds a DSB instruction before the
1378 relevant cache maintenance functions and sets a specific bit
1379 in the diagnostic control register of the SCU.
1380
Will Deacon11ed0ba2011-11-14 17:24:58 +01001381config PL310_ERRATA_769419
1382 bool "PL310 errata: no automatic Store Buffer drain"
1383 depends on CACHE_L2X0
1384 help
1385 On revisions of the PL310 prior to r3p2, the Store Buffer does
1386 not automatically drain. This can cause normal, non-cacheable
1387 writes to be retained when the memory system is idle, leading
1388 to suboptimal I/O performance for drivers using coherent DMA.
1389 This option adds a write barrier to the cpu_idle loop so that,
1390 on systems with an outer cache, the store buffer is drained
1391 explicitly.
1392
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393endmenu
1394
1395source "arch/arm/common/Kconfig"
1396
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397menu "Bus support"
1398
1399config ARM_AMBA
1400 bool
1401
1402config ISA
1403 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 help
1405 Find out whether you have ISA slots on your motherboard. ISA is the
1406 name of a bus system, i.e. the way the CPU talks to the other stuff
1407 inside your box. Other bus systems are PCI, EISA, MicroChannel
1408 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1409 newer boards don't support it. If you have ISA, say Y, otherwise N.
1410
Russell King065909b2006-01-04 15:44:16 +00001411# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412config ISA_DMA
1413 bool
Russell King065909b2006-01-04 15:44:16 +00001414 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415
Russell King065909b2006-01-04 15:44:16 +00001416# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001417config ISA_DMA_API
1418 bool
Al Viro5cae8412005-05-04 05:39:22 +01001419
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001421 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422 help
1423 Find out whether you have a PCI motherboard. PCI is the name of a
1424 bus system, i.e. the way the CPU talks to the other stuff inside
1425 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1426 VESA. If you have PCI, say Y, otherwise N.
1427
Anton Vorontsov52882172010-04-19 13:20:49 +01001428config PCI_DOMAINS
1429 bool
1430 depends on PCI
1431
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001432config PCI_NANOENGINE
1433 bool "BSE nanoEngine PCI support"
1434 depends on SA1100_NANOENGINE
1435 help
1436 Enable PCI on the BSE nanoEngine board.
1437
Matthew Wilcox36e23592007-07-10 10:54:40 -06001438config PCI_SYSCALL
1439 def_bool PCI
1440
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441# Select the host bridge type
1442config PCI_HOST_VIA82C505
1443 bool
1444 depends on PCI && ARCH_SHARK
1445 default y
1446
Mike Rapoporta0113a92007-11-25 08:55:34 +01001447config PCI_HOST_ITE8152
1448 bool
1449 depends on PCI && MACH_ARMCORE
1450 default y
1451 select DMABOUNCE
1452
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453source "drivers/pci/Kconfig"
1454
1455source "drivers/pcmcia/Kconfig"
1456
1457endmenu
1458
1459menu "Kernel Features"
1460
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001461source "kernel/time/Kconfig"
1462
Dave Martin3b556582011-12-07 15:38:04 +00001463config HAVE_SMP
1464 bool
1465 help
1466 This option should be selected by machines which have an SMP-
1467 capable CPU.
1468
1469 The only effect of this option is to make the SMP-related
1470 options available to the user for configuration.
1471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001473 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001474 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001475 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001476 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001477 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001478 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001479 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 help
1481 This enables support for systems with more than one CPU. If you have
1482 a system with only one CPU, like most personal computers, say N. If
1483 you have a system with more than one CPU, say Y.
1484
1485 If you say N here, the kernel will run on single and multiprocessor
1486 machines, but will use only one CPU of a multiprocessor machine. If
1487 you say Y here, the kernel will run on many, but not all, single
1488 processor machines. On a single processor machine, the kernel will
1489 run faster if you say N here.
1490
Paul Bolle395cf962011-08-15 02:02:26 +02001491 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001492 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001493 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494
1495 If you don't know what to do here, say N.
1496
Russell Kingf00ec482010-09-04 10:47:48 +01001497config SMP_ON_UP
1498 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1499 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001500 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001501 default y
1502 help
1503 SMP kernels contain instructions which fail on non-SMP processors.
1504 Enabling this option allows the kernel to modify itself to make
1505 these instructions safe. Disabling it allows about 1K of space
1506 savings.
1507
1508 If you don't know what to do here, say Y.
1509
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001510config ARM_CPU_TOPOLOGY
1511 bool "Support cpu topology definition"
1512 depends on SMP && CPU_V7
1513 default y
1514 help
1515 Support ARM cpu topology definition. The MPIDR register defines
1516 affinity between processors which is then used to describe the cpu
1517 topology of an ARM System.
1518
1519config SCHED_MC
1520 bool "Multi-core scheduler support"
1521 depends on ARM_CPU_TOPOLOGY
1522 help
1523 Multi-core scheduler support improves the CPU scheduler's decision
1524 making when dealing with multi-core CPU chips at a cost of slightly
1525 increased overhead in some places. If unsure say N here.
1526
1527config SCHED_SMT
1528 bool "SMT scheduler support"
1529 depends on ARM_CPU_TOPOLOGY
1530 help
1531 Improves the CPU scheduler's decision making when dealing with
1532 MultiThreading at a cost of slightly increased overhead in some
1533 places. If unsure say N here.
1534
Russell Kinga8cbcd92009-05-16 11:51:14 +01001535config HAVE_ARM_SCU
1536 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001537 help
1538 This option enables support for the ARM system coherency unit
1539
Russell Kingf32f4ce2009-05-16 12:14:21 +01001540config HAVE_ARM_TWD
1541 bool
1542 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001543 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001544 help
1545 This options enables support for the ARM timer and watchdog unit
1546
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001547choice
1548 prompt "Memory split"
1549 default VMSPLIT_3G
1550 help
1551 Select the desired split between kernel and user memory.
1552
1553 If you are not absolutely sure what you are doing, leave this
1554 option alone!
1555
1556 config VMSPLIT_3G
1557 bool "3G/1G user/kernel split"
1558 config VMSPLIT_2G
1559 bool "2G/2G user/kernel split"
1560 config VMSPLIT_1G
1561 bool "1G/3G user/kernel split"
1562endchoice
1563
1564config PAGE_OFFSET
1565 hex
1566 default 0x40000000 if VMSPLIT_1G
1567 default 0x80000000 if VMSPLIT_2G
1568 default 0xC0000000
1569
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570config NR_CPUS
1571 int "Maximum number of CPUs (2-32)"
1572 range 2 32
1573 depends on SMP
1574 default "4"
1575
Russell Kinga054a812005-11-02 22:24:33 +00001576config HOTPLUG_CPU
1577 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1578 depends on SMP && HOTPLUG && EXPERIMENTAL
1579 help
1580 Say Y here to experiment with turning CPUs off and on. CPUs
1581 can be controlled through /sys/devices/system/cpu.
1582
Russell King37ee16a2005-11-08 19:08:05 +00001583config LOCAL_TIMERS
1584 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001585 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001586 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001587 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001588 help
1589 Enable support for local timers on SMP platforms, rather then the
1590 legacy IPI broadcast method. Local timers allows the system
1591 accounting to be spread across the timer interval, preventing a
1592 "thundering herd" at every timer tick.
1593
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001594config ARCH_NR_GPIO
1595 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001596 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001597 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001598 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001599 default 0
1600 help
1601 Maximum number of GPIOs in the system.
1602
1603 If unsure, leave the default value.
1604
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001605source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606
Russell Kingf8065812006-03-02 22:41:59 +00001607config HZ
1608 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001609 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001610 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001611 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001612 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001613 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001614 default 100
1615
Catalin Marinas16c79652009-07-24 12:33:02 +01001616config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001617 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001618 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001619 select AEABI
1620 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001621 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001622 help
1623 By enabling this option, the kernel will be compiled in
1624 Thumb-2 mode. A compiler/assembler that understand the unified
1625 ARM-Thumb syntax is needed.
1626
1627 If unsure, say N.
1628
Dave Martin6f685c52011-03-03 11:41:12 +01001629config THUMB2_AVOID_R_ARM_THM_JUMP11
1630 bool "Work around buggy Thumb-2 short branch relocations in gas"
1631 depends on THUMB2_KERNEL && MODULES
1632 default y
1633 help
1634 Various binutils versions can resolve Thumb-2 branches to
1635 locally-defined, preemptible global symbols as short-range "b.n"
1636 branch instructions.
1637
1638 This is a problem, because there's no guarantee the final
1639 destination of the symbol, or any candidate locations for a
1640 trampoline, are within range of the branch. For this reason, the
1641 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1642 relocation in modules at all, and it makes little sense to add
1643 support.
1644
1645 The symptom is that the kernel fails with an "unsupported
1646 relocation" error when loading some modules.
1647
1648 Until fixed tools are available, passing
1649 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1650 code which hits this problem, at the cost of a bit of extra runtime
1651 stack usage in some cases.
1652
1653 The problem is described in more detail at:
1654 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1655
1656 Only Thumb-2 kernels are affected.
1657
1658 Unless you are sure your tools don't have this problem, say Y.
1659
Catalin Marinas0becb082009-07-24 12:32:53 +01001660config ARM_ASM_UNIFIED
1661 bool
1662
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001663config AEABI
1664 bool "Use the ARM EABI to compile the kernel"
1665 help
1666 This option allows for the kernel to be compiled using the latest
1667 ARM ABI (aka EABI). This is only useful if you are using a user
1668 space environment that is also compiled with EABI.
1669
1670 Since there are major incompatibilities between the legacy ABI and
1671 EABI, especially with regard to structure member alignment, this
1672 option also changes the kernel syscall calling convention to
1673 disambiguate both ABIs and allow for backward compatibility support
1674 (selected with CONFIG_OABI_COMPAT).
1675
1676 To use this you need GCC version 4.0.0 or later.
1677
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001678config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001679 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001680 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001681 default y
1682 help
1683 This option preserves the old syscall interface along with the
1684 new (ARM EABI) one. It also provides a compatibility layer to
1685 intercept syscalls that have structure arguments which layout
1686 in memory differs between the legacy ABI and the new ARM EABI
1687 (only for non "thumb" binaries). This option adds a tiny
1688 overhead to all syscalls and produces a slightly larger kernel.
1689 If you know you'll be using only pure EABI user space then you
1690 can say N here. If this option is not selected and you attempt
1691 to execute a legacy ABI binary then the result will be
1692 UNPREDICTABLE (in fact it can be predicted that it won't work
1693 at all). If in doubt say Y.
1694
Mel Gormaneb335752009-05-13 17:34:48 +01001695config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001696 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001697
Russell King05944d72006-11-30 20:43:51 +00001698config ARCH_SPARSEMEM_ENABLE
1699 bool
1700
Russell King07a2f732008-10-01 21:39:58 +01001701config ARCH_SPARSEMEM_DEFAULT
1702 def_bool ARCH_SPARSEMEM_ENABLE
1703
Russell King05944d72006-11-30 20:43:51 +00001704config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001705 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001706
Will Deacon7b7bf492011-05-19 13:21:14 +01001707config HAVE_ARCH_PFN_VALID
1708 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1709
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001710config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001711 bool "High Memory Support"
1712 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001713 help
1714 The address space of ARM processors is only 4 Gigabytes large
1715 and it has to accommodate user address space, kernel address
1716 space as well as some memory mapped IO. That means that, if you
1717 have a large amount of physical memory and/or IO, not all of the
1718 memory can be "permanently mapped" by the kernel. The physical
1719 memory that is not permanently mapped is called "high memory".
1720
1721 Depending on the selected kernel/user memory split, minimum
1722 vmalloc space and actual amount of RAM, you may not need this
1723 option which should result in a slightly faster kernel.
1724
1725 If unsure, say n.
1726
Russell King65cec8e2009-08-17 20:02:06 +01001727config HIGHPTE
1728 bool "Allocate 2nd-level pagetables from highmem"
1729 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001730
Jamie Iles1b8873a2010-02-02 20:25:44 +01001731config HW_PERF_EVENTS
1732 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001733 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001734 default y
1735 help
1736 Enable hardware performance counter support for perf events. If
1737 disabled, perf events will use software events only.
1738
Dave Hansen3f22ab22005-06-23 00:07:43 -07001739source "mm/Kconfig"
1740
Magnus Dammc1b2d972010-07-05 10:00:11 +01001741config FORCE_MAX_ZONEORDER
1742 int "Maximum zone order" if ARCH_SHMOBILE
1743 range 11 64 if ARCH_SHMOBILE
1744 default "9" if SA1111
1745 default "11"
1746 help
1747 The kernel memory allocator divides physically contiguous memory
1748 blocks into "zones", where each zone is a power of two number of
1749 pages. This option selects the largest power of two that the kernel
1750 keeps in the memory allocator. If you need to allocate very large
1751 blocks of physically contiguous memory, then you may need to
1752 increase this value.
1753
1754 This config option is actually maximum order plus one. For example,
1755 a value of 11 means that the largest free memory block is 2^10 pages.
1756
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757config LEDS
1758 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001759 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001760 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1762 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001763 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001764 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001765 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766 help
1767 If you say Y here, the LEDs on your machine will be used
1768 to provide useful information about your current system status.
1769
1770 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1771 be able to select which LEDs are active using the options below. If
1772 you are compiling a kernel for the EBSA-110 or the LART however, the
1773 red LED will simply flash regularly to indicate that the system is
1774 still functional. It is safe to say Y here if you have a CATS
1775 system, but the driver will do nothing.
1776
1777config LEDS_TIMER
1778 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001779 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1780 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001782 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783 default y if ARCH_EBSA110
1784 help
1785 If you say Y here, one of the system LEDs (the green one on the
1786 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1787 will flash regularly to indicate that the system is still
1788 operational. This is mainly useful to kernel hackers who are
1789 debugging unstable kernels.
1790
1791 The LART uses the same LED for both Timer LED and CPU usage LED
1792 functions. You may choose to use both, but the Timer LED function
1793 will overrule the CPU usage LED.
1794
1795config LEDS_CPU
1796 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001797 !ARCH_OMAP) \
1798 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1799 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800 depends on LEDS
1801 help
1802 If you say Y here, the red LED will be used to give a good real
1803 time indication of CPU usage, by lighting whenever the idle task
1804 is not currently executing.
1805
1806 The LART uses the same LED for both Timer LED and CPU usage LED
1807 functions. You may choose to use both, but the Timer LED function
1808 will overrule the CPU usage LED.
1809
1810config ALIGNMENT_TRAP
1811 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001812 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001813 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001814 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001815 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001816 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1818 address divisible by 4. On 32-bit ARM processors, these non-aligned
1819 fetch/store instructions will be emulated in software if you say
1820 here, which has a severe performance impact. This is necessary for
1821 correct operation of some network protocols. With an IP-only
1822 configuration it is safe to say N, otherwise say Y.
1823
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001824config UACCESS_WITH_MEMCPY
1825 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1826 depends on MMU && EXPERIMENTAL
1827 default y if CPU_FEROCEON
1828 help
1829 Implement faster copy_to_user and clear_user methods for CPU
1830 cores where a 8-word STM instruction give significantly higher
1831 memory write throughput than a sequence of individual 32bit stores.
1832
1833 A possible side effect is a slight increase in scheduling latency
1834 between threads sharing the same address space if they invoke
1835 such copy operations with large buffers.
1836
1837 However, if the CPU data cache is using a write-allocate mode,
1838 this option is unlikely to provide any performance gain.
1839
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001840config SECCOMP
1841 bool
1842 prompt "Enable seccomp to safely compute untrusted bytecode"
1843 ---help---
1844 This kernel feature is useful for number crunching applications
1845 that may need to compute untrusted bytecode during their
1846 execution. By using pipes or other transports made available to
1847 the process as file descriptors supporting the read/write
1848 syscalls, it's possible to isolate those applications in
1849 their own address space using seccomp. Once seccomp is
1850 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1851 and the task is only allowed to execute a few safe syscalls
1852 defined by each seccomp mode.
1853
Nicolas Pitrec743f382010-05-24 23:55:42 -04001854config CC_STACKPROTECTOR
1855 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001856 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001857 help
1858 This option turns on the -fstack-protector GCC feature. This
1859 feature puts, at the beginning of functions, a canary value on
1860 the stack just before the return address, and validates
1861 the value just before actually returning. Stack based buffer
1862 overflows (that need to overwrite this return address) now also
1863 overwrite the canary, which gets detected and the attack is then
1864 neutralized via a kernel panic.
1865 This feature requires gcc version 4.2 or above.
1866
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001867config DEPRECATED_PARAM_STRUCT
1868 bool "Provide old way to pass kernel parameters"
1869 help
1870 This was deprecated in 2001 and announced to live on for 5 years.
1871 Some old boot loaders still use this way.
1872
Linus Torvalds1da177e2005-04-16 15:20:36 -07001873endmenu
1874
1875menu "Boot options"
1876
Grant Likely9eb8f672011-04-28 14:27:20 -06001877config USE_OF
1878 bool "Flattened Device Tree support"
1879 select OF
1880 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001881 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001882 help
1883 Include support for flattened device tree machine descriptions.
1884
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885# Compressed boot loader in ROM. Yes, we really want to ask about
1886# TEXT and BSS so we preserve their values in the config files.
1887config ZBOOT_ROM_TEXT
1888 hex "Compressed ROM boot loader base address"
1889 default "0"
1890 help
1891 The physical address at which the ROM-able zImage is to be
1892 placed in the target. Platforms which normally make use of
1893 ROM-able zImage formats normally set this to a suitable
1894 value in their defconfig file.
1895
1896 If ZBOOT_ROM is not enabled, this has no effect.
1897
1898config ZBOOT_ROM_BSS
1899 hex "Compressed ROM boot loader BSS address"
1900 default "0"
1901 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001902 The base address of an area of read/write memory in the target
1903 for the ROM-able zImage which must be available while the
1904 decompressor is running. It must be large enough to hold the
1905 entire decompressed kernel plus an additional 128 KiB.
1906 Platforms which normally make use of ROM-able zImage formats
1907 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908
1909 If ZBOOT_ROM is not enabled, this has no effect.
1910
1911config ZBOOT_ROM
1912 bool "Compressed boot loader in ROM/flash"
1913 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1914 help
1915 Say Y here if you intend to execute your compressed kernel image
1916 (zImage) directly from ROM or flash. If unsure, say N.
1917
Simon Horman090ab3f2011-04-26 06:29:53 +01001918choice
1919 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1920 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1921 default ZBOOT_ROM_NONE
1922 help
1923 Include experimental SD/MMC loading code in the ROM-able zImage.
1924 With this enabled it is possible to write the the ROM-able zImage
1925 kernel image to an MMC or SD card and boot the kernel straight
1926 from the reset vector. At reset the processor Mask ROM will load
1927 the first part of the the ROM-able zImage which in turn loads the
1928 rest the kernel image to RAM.
1929
1930config ZBOOT_ROM_NONE
1931 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1932 help
1933 Do not load image from SD or MMC
1934
Simon Hormanf45b1142011-01-11 04:01:08 +01001935config ZBOOT_ROM_MMCIF
1936 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001937 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001938 Load image from MMCIF hardware block.
1939
1940config ZBOOT_ROM_SH_MOBILE_SDHI
1941 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1942 help
1943 Load image from SDHI hardware block
1944
1945endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001946
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001947config ARM_APPENDED_DTB
1948 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1949 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1950 help
1951 With this option, the boot code will look for a device tree binary
1952 (DTB) appended to zImage
1953 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1954
1955 This is meant as a backward compatibility convenience for those
1956 systems with a bootloader that can't be upgraded to accommodate
1957 the documented boot protocol using a device tree.
1958
1959 Beware that there is very little in terms of protection against
1960 this option being confused by leftover garbage in memory that might
1961 look like a DTB header after a reboot if no actual DTB is appended
1962 to zImage. Do not leave this option active in a production kernel
1963 if you don't intend to always append a DTB. Proper passing of the
1964 location into r2 of a bootloader provided DTB is always preferable
1965 to this option.
1966
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001967config ARM_ATAG_DTB_COMPAT
1968 bool "Supplement the appended DTB with traditional ATAG information"
1969 depends on ARM_APPENDED_DTB
1970 help
1971 Some old bootloaders can't be updated to a DTB capable one, yet
1972 they provide ATAGs with memory configuration, the ramdisk address,
1973 the kernel cmdline string, etc. Such information is dynamically
1974 provided by the bootloader and can't always be stored in a static
1975 DTB. To allow a device tree enabled kernel to be used with such
1976 bootloaders, this option allows zImage to extract the information
1977 from the ATAG list and store it at run time into the appended DTB.
1978
Linus Torvalds1da177e2005-04-16 15:20:36 -07001979config CMDLINE
1980 string "Default kernel command string"
1981 default ""
1982 help
1983 On some architectures (EBSA110 and CATS), there is currently no way
1984 for the boot loader to pass arguments to the kernel. For these
1985 architectures, you should supply some command-line options at build
1986 time by entering them here. As a minimum, you should specify the
1987 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1988
Victor Boivie4394c122011-05-04 17:07:55 +01001989choice
1990 prompt "Kernel command line type" if CMDLINE != ""
1991 default CMDLINE_FROM_BOOTLOADER
1992
1993config CMDLINE_FROM_BOOTLOADER
1994 bool "Use bootloader kernel arguments if available"
1995 help
1996 Uses the command-line options passed by the boot loader. If
1997 the boot loader doesn't provide any, the default kernel command
1998 string provided in CMDLINE will be used.
1999
2000config CMDLINE_EXTEND
2001 bool "Extend bootloader kernel arguments"
2002 help
2003 The command-line arguments provided by the boot loader will be
2004 appended to the default kernel command string.
2005
Alexander Holler92d20402010-02-16 19:04:53 +01002006config CMDLINE_FORCE
2007 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002008 help
2009 Always use the default kernel command string, even if the boot
2010 loader passes other arguments to the kernel.
2011 This is useful if you cannot or don't want to change the
2012 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002013endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002014
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015config XIP_KERNEL
2016 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002017 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002018 help
2019 Execute-In-Place allows the kernel to run from non-volatile storage
2020 directly addressable by the CPU, such as NOR flash. This saves RAM
2021 space since the text section of the kernel is not loaded from flash
2022 to RAM. Read-write sections, such as the data section and stack,
2023 are still copied to RAM. The XIP kernel is not compressed since
2024 it has to run directly from flash, so it will take more space to
2025 store it. The flash address used to link the kernel object files,
2026 and for storing it, is configuration dependent. Therefore, if you
2027 say Y here, you must know the proper physical address where to
2028 store the kernel image depending on your own flash memory usage.
2029
2030 Also note that the make target becomes "make xipImage" rather than
2031 "make zImage" or "make Image". The final kernel binary to put in
2032 ROM memory will be arch/arm/boot/xipImage.
2033
2034 If unsure, say N.
2035
2036config XIP_PHYS_ADDR
2037 hex "XIP Kernel Physical Location"
2038 depends on XIP_KERNEL
2039 default "0x00080000"
2040 help
2041 This is the physical address in your flash memory the kernel will
2042 be linked for and stored to. This address is dependent on your
2043 own flash usage.
2044
Richard Purdiec587e4a2007-02-06 21:29:00 +01002045config KEXEC
2046 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002047 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002048 help
2049 kexec is a system call that implements the ability to shutdown your
2050 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002051 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002052 you can start any kernel with it, not just Linux.
2053
2054 It is an ongoing process to be certain the hardware in a machine
2055 is properly shutdown, so do not be surprised if this code does not
2056 initially work for you. It may help to enable device hotplugging
2057 support.
2058
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002059config ATAGS_PROC
2060 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002061 depends on KEXEC
2062 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002063 help
2064 Should the atags used to boot the kernel be exported in an "atags"
2065 file in procfs. Useful with kexec.
2066
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002067config CRASH_DUMP
2068 bool "Build kdump crash kernel (EXPERIMENTAL)"
2069 depends on EXPERIMENTAL
2070 help
2071 Generate crash dump after being started by kexec. This should
2072 be normally only set in special crash dump kernels which are
2073 loaded in the main kernel with kexec-tools into a specially
2074 reserved region and then later executed after a crash by
2075 kdump/kexec. The crash dump kernel must be compiled to a
2076 memory address not used by the main kernel
2077
2078 For more details see Documentation/kdump/kdump.txt
2079
Eric Miaoe69edc792010-07-05 15:56:50 +02002080config AUTO_ZRELADDR
2081 bool "Auto calculation of the decompressed kernel image address"
2082 depends on !ZBOOT_ROM && !ARCH_U300
2083 help
2084 ZRELADDR is the physical address where the decompressed kernel
2085 image will be placed. If AUTO_ZRELADDR is selected, the address
2086 will be determined at run-time by masking the current IP with
2087 0xf8000000. This assumes the zImage being placed in the first 128MB
2088 from start of memory.
2089
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090endmenu
2091
Russell Kingac9d7ef2008-08-18 17:26:00 +01002092menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093
Ben Dooks89c52ed2009-07-30 23:23:24 +01002094if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095
2096source "drivers/cpufreq/Kconfig"
2097
Yong Shen64f102b2010-10-21 21:18:59 +08002098config CPU_FREQ_IMX
2099 tristate "CPUfreq driver for i.MX CPUs"
2100 depends on ARCH_MXC && CPU_FREQ
2101 help
2102 This enables the CPUfreq driver for i.MX CPUs.
2103
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104config CPU_FREQ_SA1100
2105 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106
2107config CPU_FREQ_SA1110
2108 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109
2110config CPU_FREQ_INTEGRATOR
2111 tristate "CPUfreq driver for ARM Integrator CPUs"
2112 depends on ARCH_INTEGRATOR && CPU_FREQ
2113 default y
2114 help
2115 This enables the CPUfreq driver for ARM Integrator CPUs.
2116
2117 For details, take a look at <file:Documentation/cpu-freq>.
2118
2119 If in doubt, say Y.
2120
Russell King9e2697f2007-12-14 13:30:14 +00002121config CPU_FREQ_PXA
2122 bool
2123 depends on CPU_FREQ && ARCH_PXA && PXA25x
2124 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002125 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002126 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2127
Ben Dooks9d56c022009-07-30 23:23:25 +01002128config CPU_FREQ_S3C
2129 bool
2130 help
2131 Internal configuration node for common cpufreq on Samsung SoC
2132
2133config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002134 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002135 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002136 select CPU_FREQ_S3C
2137 help
2138 This enables the CPUfreq driver for the Samsung S3C24XX family
2139 of CPUs.
2140
2141 For details, take a look at <file:Documentation/cpu-freq>.
2142
2143 If in doubt, say N.
2144
2145config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002146 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002147 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2148 help
2149 Compile in support for changing the PLL frequency from the
2150 S3C24XX series CPUfreq driver. The PLL takes time to settle
2151 after a frequency change, so by default it is not enabled.
2152
2153 This also means that the PLL tables for the selected CPU(s) will
2154 be built which may increase the size of the kernel image.
2155
2156config CPU_FREQ_S3C24XX_DEBUG
2157 bool "Debug CPUfreq Samsung driver core"
2158 depends on CPU_FREQ_S3C24XX
2159 help
2160 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2161
2162config CPU_FREQ_S3C24XX_IODEBUG
2163 bool "Debug CPUfreq Samsung driver IO timing"
2164 depends on CPU_FREQ_S3C24XX
2165 help
2166 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2167
Ben Dookse6d197a2009-07-30 23:23:42 +01002168config CPU_FREQ_S3C24XX_DEBUGFS
2169 bool "Export debugfs for CPUFreq"
2170 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2171 help
2172 Export status information via debugfs.
2173
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174endif
2175
Russell Kingac9d7ef2008-08-18 17:26:00 +01002176source "drivers/cpuidle/Kconfig"
2177
2178endmenu
2179
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180menu "Floating point emulation"
2181
2182comment "At least one emulation must be selected"
2183
2184config FPE_NWFPE
2185 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002186 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187 ---help---
2188 Say Y to include the NWFPE floating point emulator in the kernel.
2189 This is necessary to run most binaries. Linux does not currently
2190 support floating point hardware so you need to say Y here even if
2191 your machine has an FPA or floating point co-processor podule.
2192
2193 You may say N here if you are going to load the Acorn FPEmulator
2194 early in the bootup.
2195
2196config FPE_NWFPE_XP
2197 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002198 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199 help
2200 Say Y to include 80-bit support in the kernel floating-point
2201 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2202 Note that gcc does not generate 80-bit operations by default,
2203 so in most cases this option only enlarges the size of the
2204 floating point emulator without any good reason.
2205
2206 You almost surely want to say N here.
2207
2208config FPE_FASTFPE
2209 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002210 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 ---help---
2212 Say Y here to include the FAST floating point emulator in the kernel.
2213 This is an experimental much faster emulator which now also has full
2214 precision for the mantissa. It does not support any exceptions.
2215 It is very simple, and approximately 3-6 times faster than NWFPE.
2216
2217 It should be sufficient for most programs. It may be not suitable
2218 for scientific calculations, but you have to check this for yourself.
2219 If you do not feel you need a faster FP emulation you should better
2220 choose NWFPE.
2221
2222config VFP
2223 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002224 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 help
2226 Say Y to include VFP support code in the kernel. This is needed
2227 if your hardware includes a VFP unit.
2228
2229 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2230 release notes and additional status information.
2231
2232 Say N if your target does not have VFP hardware.
2233
Catalin Marinas25ebee02007-09-25 15:22:24 +01002234config VFPv3
2235 bool
2236 depends on VFP
2237 default y if CPU_V7
2238
Catalin Marinasb5872db2008-01-10 19:16:17 +01002239config NEON
2240 bool "Advanced SIMD (NEON) Extension support"
2241 depends on VFPv3 && CPU_V7
2242 help
2243 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2244 Extension.
2245
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246endmenu
2247
2248menu "Userspace binary formats"
2249
2250source "fs/Kconfig.binfmt"
2251
2252config ARTHUR
2253 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002254 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002255 help
2256 Say Y here to include the kernel code necessary if you want to run
2257 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2258 experimental; if this sounds frightening, say N and sleep in peace.
2259 You can also say M here to compile this support as a module (which
2260 will be called arthur).
2261
2262endmenu
2263
2264menu "Power management options"
2265
Russell Kingeceab4a2005-11-15 11:31:41 +00002266source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002267
Johannes Bergf4cb5702007-12-08 02:14:00 +01002268config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002269 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002270 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2271 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002272 def_bool y
2273
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002274config ARM_CPU_SUSPEND
2275 def_bool PM_SLEEP
2276
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277endmenu
2278
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002279source "net/Kconfig"
2280
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002281source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282
2283source "fs/Kconfig"
2284
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285source "arch/arm/Kconfig.debug"
2286
2287source "security/Kconfig"
2288
2289source "crypto/Kconfig"
2290
2291source "lib/Kconfig"