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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
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
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053034 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020035 select GENERIC_PCI_IOMAP
Russell Kingfada8dc2012-03-27 10:44:23 +010036 select HAVE_BPF_JIT if NET
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 help
38 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000039 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000041 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 Europe. There is an ARM Linux project with a web page at
43 <http://www.arm.linux.org.uk/>.
44
Russell King74facff2011-06-02 11:16:22 +010045config ARM_HAS_SG_CHAIN
46 bool
47
Russell King1a189b92008-04-13 21:41:55 +010048config HAVE_PWM
49 bool
50
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010051config MIGHT_HAVE_PCI
52 bool
53
Ralf Baechle75e71532007-02-09 17:08:58 +000054config SYS_SUPPORTS_APM_EMULATION
55 bool
56
David Brownell0a938b92007-03-05 00:30:18 -080057config GENERIC_GPIO
58 bool
David Brownell0a938b92007-03-05 00:30:18 -080059
John Stultz5cfc8ee2010-03-24 00:22:36 +000060config ARCH_USES_GETTIMEOFFSET
61 bool
62 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010063
Kevin Hilman0567a0c2007-03-13 20:29:24 +010064config GENERIC_CLOCKEVENTS
65 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010066
Catalin Marinasa8655e82008-02-04 17:30:57 +010067config GENERIC_CLOCKEVENTS_BROADCAST
68 bool
69 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010070 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010071
Rob Herringbf9dd362011-03-04 23:51:59 +010072config KTIME_SCALAR
73 bool
74 default y
75
Linus Walleijbc581772009-09-15 17:30:37 +010076config HAVE_TCM
77 bool
78 select GENERIC_ALLOCATOR
79
Russell Kinge119bff2010-01-10 17:23:29 +000080config HAVE_PROC_CPU
81 bool
82
Al Viro5ea81762007-02-11 15:41:31 +000083config NO_IOPORT
84 bool
Al Viro5ea81762007-02-11 15:41:31 +000085
Linus Torvalds1da177e2005-04-16 15:20:36 -070086config EISA
87 bool
88 ---help---
89 The Extended Industry Standard Architecture (EISA) bus was
90 developed as an open alternative to the IBM MicroChannel bus.
91
92 The EISA bus provided some of the features of the IBM MicroChannel
93 bus while maintaining backward compatibility with cards made for
94 the older ISA bus. The EISA bus saw limited use between 1988 and
95 1995 when it was made obsolete by the PCI bus.
96
97 Say Y here if you are building a kernel for an EISA-based machine.
98
99 Otherwise, say N.
100
101config SBUS
102 bool
103
104config MCA
105 bool
106 help
107 MicroChannel Architecture is found in some IBM PS/2 machines and
108 laptops. It is a bus system similar to PCI or ISA. See
109 <file:Documentation/mca.txt> (and especially the web page given
110 there) before attempting to build an MCA bus kernel.
111
Russell Kingf16fb1e2007-04-28 09:59:37 +0100112config STACKTRACE_SUPPORT
113 bool
114 default y
115
Nicolas Pitref76e9152008-04-24 01:31:46 -0400116config HAVE_LATENCYTOP_SUPPORT
117 bool
118 depends on !SMP
119 default y
120
Russell Kingf16fb1e2007-04-28 09:59:37 +0100121config LOCKDEP_SUPPORT
122 bool
123 default y
124
Russell King7ad1bcb2006-08-27 12:07:02 +0100125config TRACE_IRQFLAGS_SUPPORT
126 bool
127 default y
128
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100129config HARDIRQS_SW_RESEND
130 bool
131 default y
132
133config GENERIC_IRQ_PROBE
134 bool
135 default y
136
Nick Piggin95c354f2008-01-30 13:31:20 +0100137config GENERIC_LOCKBREAK
138 bool
139 default y
140 depends on SMP && PREEMPT
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142config RWSEM_GENERIC_SPINLOCK
143 bool
144 default y
145
146config RWSEM_XCHGADD_ALGORITHM
147 bool
148
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149config ARCH_HAS_ILOG2_U32
150 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800151
152config ARCH_HAS_ILOG2_U64
153 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800154
Ben Dooks89c52ed2009-07-30 23:23:24 +0100155config ARCH_HAS_CPUFREQ
156 bool
157 help
158 Internal node to signify that the ARCH has CPUFREQ support
159 and that the relevant menu configurations are displayed for
160 it.
161
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100162config ARCH_HAS_CPU_IDLE_WAIT
163 def_bool y
164
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800165config GENERIC_HWEIGHT
166 bool
167 default y
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config GENERIC_CALIBRATE_DELAY
170 bool
171 default y
172
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100173config ARCH_MAY_HAVE_PC_FDC
174 bool
175
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800176config ZONE_DMA
177 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800178
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800179config NEED_DMA_MAP_STATE
180 def_bool y
181
Rob Herring58af4a22012-03-20 14:33:01 -0500182config ARCH_HAS_DMA_SET_COHERENT_MASK
183 bool
184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185config GENERIC_ISA_DMA
186 bool
187
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188config FIQ
189 bool
190
Rob Herring13a50452012-02-07 09:28:22 -0600191config NEED_RET_TO_USER
192 bool
193
Al Viro034d2f52005-12-19 16:27:59 -0500194config ARCH_MTD_XIP
195 bool
196
Hyok S. Choic760fc12006-03-27 15:18:50 +0100197config VECTORS_BASE
198 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900199 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200 default DRAM_BASE if REMAP_VECTORS_TO_RAM
201 default 0x00000000
202 help
203 The base address of exception vectors.
204
Russell Kingdc21af92011-01-04 19:09:43 +0000205config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100206 bool "Patch physical to virtual translations at runtime" if EMBEDDED
207 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100208 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000209 depends on !ARCH_REALVIEW || !SPARSEMEM
210 help
Russell King111e9a52011-05-12 10:02:42 +0100211 Patch phys-to-virt and virt-to-phys translation functions at
212 boot and module load time according to the position of the
213 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000214
Russell King111e9a52011-05-12 10:02:42 +0100215 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100216 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000217
Russell Kingc1beced2011-08-10 10:23:45 +0100218 Only disable this option if you know that you do not require
219 this feature (eg, building a kernel for a single machine) and
220 you need to shrink the kernel to the minimal size.
221
Rob Herringc334bc12012-03-04 22:03:33 -0600222config NEED_MACH_IO_H
223 bool
224 help
225 Select this when mach/io.h is required to provide special
226 definitions for this platform. The need for mach/io.h should
227 be avoided when possible.
228
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400229config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400230 bool
Russell King111e9a52011-05-12 10:02:42 +0100231 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400232 Select this when mach/memory.h is required to provide special
233 definitions for this platform. The need for mach/memory.h should
234 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400235
236config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100237 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400238 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100239 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400240 help
241 Please provide the physical address corresponding to the
242 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000243
Simon Glass87e040b2011-08-16 23:44:26 +0100244config GENERIC_BUG
245 def_bool y
246 depends on BUG
247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248source "init/Kconfig"
249
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700250source "kernel/Kconfig.freezer"
251
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252menu "System Type"
253
Hyok S. Choi3c427972009-07-24 12:35:00 +0100254config MMU
255 bool "MMU-based Paged Memory Management Support"
256 default y
257 help
258 Select if you want MMU-based virtualised addressing space
259 support by paged memory management. If unsure, say 'Y'.
260
Russell Kingccf50e22010-03-15 19:03:06 +0000261#
262# The "ARM system type" choice list is ordered alphabetically by option
263# text. Please add new entries in the option alphabetic order.
264#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265choice
266 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000267 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269config ARCH_INTEGRATOR
270 bool "ARM Ltd. Integrator family"
271 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100272 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100273 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900274 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100275 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000276 select ICST
Russell King13edd862010-01-15 21:49:23 +0000277 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000278 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000279 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600280 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400281 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100282 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100283 help
284 Support for ARM's Integrator platform.
285
286config ARCH_REALVIEW
287 bool "ARM Ltd. RealView family"
288 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100289 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900290 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000291 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100292 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100293 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000294 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000295 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000296 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100297 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400298 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 help
300 This enables support for ARM Ltd RealView boards.
301
302config ARCH_VERSATILE
303 bool "ARM Ltd. Versatile family"
304 select ARM_AMBA
305 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100306 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900307 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000308 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100309 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100310 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000311 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000312 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000313 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000314 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100315 help
316 This enables support for ARM Ltd Versatile board.
317
Russell Kingceade892010-02-11 21:44:53 +0000318config ARCH_VEXPRESS
319 bool "ARM Ltd. Versatile Express family"
320 select ARCH_WANT_OPTIONAL_GPIOLIB
321 select ARM_AMBA
322 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100323 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900324 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000325 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000326 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100327 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000328 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000329 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000330 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000331 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000332 help
333 This enables support for the ARM Ltd Versatile Express boards.
334
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100335config ARCH_AT91
336 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100337 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700338 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100339 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100340 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500341 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100342 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100343 This enables support for systems based on the Atmel AT91RM9200,
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100344 AT91SAM9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345
Russell Kingccf50e22010-03-15 19:03:06 +0000346config ARCH_BCMRING
347 bool "Broadcom BCMRING"
348 depends on MMU
349 select CPU_V6
350 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100351 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100352 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000353 select GENERIC_CLOCKEVENTS
354 select ARCH_WANT_OPTIONAL_GPIOLIB
355 help
356 Support for Broadcom's BCMRing platform.
357
Rob Herring220e6cf2011-06-07 10:02:55 -0500358config ARCH_HIGHBANK
359 bool "Calxeda Highbank-based"
360 select ARCH_WANT_OPTIONAL_GPIOLIB
361 select ARM_AMBA
362 select ARM_GIC
363 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000364 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500365 select CLKDEV_LOOKUP
366 select CPU_V7
367 select GENERIC_CLOCKEVENTS
368 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000369 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600370 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500371 select USE_OF
372 help
373 Support for the Calxeda Highbank SoC based boards.
374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100376 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000378 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400379 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000380 help
381 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300383config ARCH_CNS3XXX
384 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200385 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300386 select GENERIC_CLOCKEVENTS
387 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000388 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100389 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400390 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300391 help
392 Support for Cavium Networks CNS3XXX platform.
393
Russell King788c9702009-04-26 14:21:59 +0100394config ARCH_GEMINI
395 bool "Cortina Systems Gemini"
396 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100397 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000398 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100399 help
400 Support for the Cortina Systems Gemini family SoCs
401
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200402config ARCH_PRIMA2
403 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
404 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200405 select NO_IOPORT
406 select GENERIC_CLOCKEVENTS
407 select CLKDEV_LOOKUP
408 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000409 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200410 select USE_OF
411 select ZONE_DMA
412 help
413 Support for CSR SiRFSoC ARM Cortex A9 Platform
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415config ARCH_EBSA110
416 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100418 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000419 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000420 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600421 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400422 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 help
424 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000425 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 Ethernet interface, two PCMCIA sockets, two serial ports and a
427 parallel port.
428
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000429config ARCH_EP93XX
430 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000432 select ARM_AMBA
433 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100434 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700435 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100436 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000437 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100438 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000439 help
440 This enables support for the Cirrus EP93xx series of CPUs.
441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442config ARCH_FOOTBRIDGE
443 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000446 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200447 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600448 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400449 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000450 help
451 Support for systems based on the DC21285 companion chip
452 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453
Russell King788c9702009-04-26 14:21:59 +0100454config ARCH_MXC
455 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100456 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100457 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100458 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100459 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800460 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200461 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100462 help
463 Support for Freescale MXC/iMX-based family of processors
464
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800465config ARCH_MXS
466 bool "Freescale MXS-based"
467 select GENERIC_CLOCKEVENTS
468 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100469 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100470 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800471 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800472 select PINCTRL
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800473 help
474 Support for Freescale MXS-based family of processors
475
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100476config ARCH_NETX
477 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100478 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100480 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100481 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000482 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100483 This enables support for systems based on the Hilscher NetX Soc
484
485config ARCH_H720X
486 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000487 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100488 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000489 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100490 help
491 This enables support for systems based on the Hynix HMS720x
492
Russell King3b938be2007-05-12 11:25:44 +0100493config ARCH_IOP13XX
494 bool "IOP13xx-based"
495 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000496 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100497 select PLAT_IOP
498 select PCI
499 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100500 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600501 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400502 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600503 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100504 help
505 Support for Intel's IOP13XX (XScale) family of processors.
506
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100507config ARCH_IOP32X
508 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100509 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000510 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600511 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600512 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100513 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100514 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100515 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000516 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100517 Support for Intel's 80219 and IOP32X (XScale) family of
518 processors.
519
520config ARCH_IOP33X
521 bool "IOP33x-based"
522 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600524 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600525 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100526 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100527 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100528 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100529 help
530 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531
Russell King3b938be2007-05-12 11:25:44 +0100532config ARCH_IXP23XX
533 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100534 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100536 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000537 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600538 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400539 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100540 help
Russell King3b938be2007-05-12 11:25:44 +0100541 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542
543config ARCH_IXP2000
544 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100545 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000546 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100547 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000548 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600549 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400550 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000551 help
552 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553
Russell King3b938be2007-05-12 11:25:44 +0100554config ARCH_IXP4XX
555 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100556 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500557 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100558 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000559 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100560 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100561 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100562 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600563 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100564 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100565 help
Russell King3b938be2007-05-12 11:25:44 +0100566 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100567
Saeed Bisharaedabd382009-08-06 15:12:43 +0300568config ARCH_DOVE
569 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300570 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300571 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300572 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300573 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600574 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300575 select PLAT_ORION
576 help
577 Support for the Marvell Dove SoC 88AP510
578
Saeed Bishara651c74c2008-06-22 22:45:06 +0200579config ARCH_KIRKWOOD
580 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000581 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200582 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700583 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200584 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600585 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200586 select PLAT_ORION
587 help
588 Support for the following Marvell Kirkwood series SoCs:
589 88F6180, 88F6192 and 88F6281.
590
Kevin Wells40805942010-07-27 08:49:04 -0700591config ARCH_LPC32XX
592 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100593 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700594 select CPU_ARM926T
595 select ARCH_REQUIRE_GPIOLIB
596 select HAVE_IDE
597 select ARM_AMBA
598 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100599 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700600 select GENERIC_CLOCKEVENTS
601 help
602 Support for the NXP LPC32XX family of processors
603
Russell King788c9702009-04-26 14:21:59 +0100604config ARCH_MV78XX0
605 bool "Marvell MV78xx0"
606 select CPU_FEROCEON
607 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700608 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100609 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600610 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100611 select PLAT_ORION
612 help
613 Support for the following Marvell MV78xx0 series SoCs:
614 MV781x0, MV782x0.
615
616config ARCH_ORION5X
617 bool "Marvell Orion"
618 depends on MMU
619 select CPU_FEROCEON
620 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700621 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100622 select GENERIC_CLOCKEVENTS
623 select PLAT_ORION
624 help
625 Support for the following Marvell Orion 5x series SoCs:
626 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
627 Orion-2 (5281), Orion-1-90 (6183).
628
629config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500630 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100631 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100632 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100633 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100634 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800635 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100636 select TICK_ONESHOT
637 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400638 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800639 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100640 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500641 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100642
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100643config ARCH_KS8695
644 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000645 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100646 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000647 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400648 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100649 help
650 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
651 System-on-Chip devices.
652
Russell King788c9702009-04-26 14:21:59 +0100653config ARCH_W90X900
654 bool "Nuvoton W90X900 CPU"
655 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100656 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100657 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100658 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100659 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200660 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100661 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
662 At present, the w90x900 has been renamed nuc900, regarding
663 the ARM series product line, you can login the following
664 link address to know more.
665
666 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
667 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400668
Erik Gillingc5f80062010-01-21 16:53:02 -0800669config ARCH_TEGRA
670 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000671 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100672 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800673 select GENERIC_CLOCKEVENTS
674 select GENERIC_GPIO
675 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000676 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000677 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600678 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700679 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800680 help
681 This enables support for NVIDIA Tegra based systems (Tegra APX,
682 Tegra 6xx and Tegra 2 series).
683
Jamie Ilesaf756552011-07-25 17:36:42 +0100684config ARCH_PICOXCELL
685 bool "Picochip picoXcell"
686 select ARCH_REQUIRE_GPIOLIB
687 select ARM_PATCH_PHYS_VIRT
688 select ARM_VIC
689 select CPU_V6K
690 select DW_APB_TIMER
691 select GENERIC_CLOCKEVENTS
692 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100693 select HAVE_TCM
694 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000695 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100696 select USE_OF
697 help
698 This enables support for systems based on the Picochip picoXcell
699 family of Femtocell devices. The picoxcell support requires device tree
700 for all boards.
701
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100702config ARCH_PNX4008
703 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000704 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100705 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000706 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100707 help
708 This enables support for Philips PNX4008 mobile platform.
709
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700711 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100712 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500713 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100714 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100715 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100716 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700717 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100718 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800719 select GPIO_PXA
Russell Kinga88264c2007-11-12 22:45:16 +0000720 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800721 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800722 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800723 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800724 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200725 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200726 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000727 help
eric miao2c8086a2007-09-11 19:13:17 -0700728 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729
Russell King788c9702009-04-26 14:21:59 +0100730config ARCH_MSM
731 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500732 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800733 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700734 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800735 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800736 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800737 Support for Qualcomm MSM/QSD based systems. This runs on the
738 apps processor of the MSM/QSD and depends on a shared memory
739 interface to the modem processor which runs the baseband
740 stack and controls some vital subsystems
741 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800742
Magnus Dammc793c1b2010-02-05 11:14:49 +0000743config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900744 bool "Renesas SH-Mobile / R-Mobile"
745 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900746 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900747 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000748 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900749 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000750 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900751 select NO_IOPORT
752 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000753 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200754 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400755 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000756 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900757 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000758
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759config ARCH_RPC
760 bool "RiscPC"
761 select ARCH_ACORN
762 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100763 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100764 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000765 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000766 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100767 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000768 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200769 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600770 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400771 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 help
773 On the Acorn Risc-PC, Linux can support the internal IDE disk and
774 CD-ROM interface, serial and parallel port, and the floppy drive.
775
776config ARCH_SA1100
777 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100778 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000779 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100780 select ISA
Russell King05944d72006-11-30 20:43:51 +0000781 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500782 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100783 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000784 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100785 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800786 select CLKDEV_LOOKUP
Russell King3e238be2008-04-14 23:03:10 +0100787 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700788 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200789 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400790 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100791 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000792 help
793 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900795config ARCH_S3C24XX
796 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800797 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100798 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700799 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900800 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000801 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900802 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900803 select HAVE_S3C_RTC if RTC_CLASS
804 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600805 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900807 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
808 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
809 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
810 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900811
Ben Dooksa08ab632008-10-21 14:06:39 +0100812config ARCH_S3C64XX
813 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000814 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900815 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900816 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100817 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900818 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900819 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900820 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000821 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100822 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900823 select ARCH_REQUIRE_GPIOLIB
824 select SAMSUNG_CLKSRC
825 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900826 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900827 select S3C_DEV_NAND
828 select USB_ARCH_HAS_OHCI
829 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900830 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900831 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100832 help
833 Samsung S3C64XX series based systems
834
Kukjin Kim49b7a492010-09-07 15:47:18 +0900835config ARCH_S5P64X0
836 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900837 select CPU_V6
838 select GENERIC_GPIO
839 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900840 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900841 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900842 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900843 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900844 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900845 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900846 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900847 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
848 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900849
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200850config ARCH_S5PC100
851 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900852 select GENERIC_GPIO
853 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900854 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900855 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900856 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900857 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900858 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900859 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900860 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200861 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900862
Kukjin Kim170f4e42010-02-24 16:40:44 +0900863config ARCH_S5PV210
864 bool "Samsung S5PV210/S5PC110"
865 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900866 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900867 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900868 select GENERIC_GPIO
869 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900870 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900871 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900872 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900873 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900874 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900875 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900876 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400877 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900878 help
879 Samsung S5PV210/S5PC110 series based systems
880
Kukjin Kim83014572011-11-06 13:54:56 +0900881config ARCH_EXYNOS
882 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900883 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900884 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900885 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900886 select GENERIC_GPIO
887 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900888 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900889 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900890 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900891 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900892 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900893 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400894 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900895 help
Kukjin Kim83014572011-11-06 13:54:56 +0900896 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900897
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898config ARCH_SHARK
899 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000900 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100901 select ISA
902 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100903 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100904 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000905 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400906 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600907 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000908 help
909 Support for the StrongARM based Digital DNARD machine, also known
910 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Linus Walleijd98aac72009-04-27 10:21:46 +0100912config ARCH_U300
913 bool "ST-Ericsson U300 Series"
914 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100915 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100916 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100917 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100918 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200919 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100920 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100921 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100922 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900923 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100924 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100925 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100926 help
927 Support for ST-Ericsson U300 series mobile platforms.
928
Russell Kingccf50e22010-03-15 19:03:06 +0000929config ARCH_U8500
930 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700931 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000932 select CPU_V7
933 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000934 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100935 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100936 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100937 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000938 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000939 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000940 help
941 Support for ST-Ericsson's Ux500 architecture
942
943config ARCH_NOMADIK
944 bool "STMicroelectronics Nomadik"
945 select ARM_AMBA
946 select ARM_VIC
947 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100948 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000949 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000950 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000951 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000952 select ARCH_REQUIRE_GPIOLIB
953 help
954 Support for the Nomadik platform by ST-Ericsson
955
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100956config ARCH_DAVINCI
957 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100958 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700959 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100960 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700961 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100962 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700963 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100964 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530965 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100966 help
967 Support for TI's DaVinci platform.
968
Russell King3b938be2007-05-12 11:25:44 +0100969config ARCH_OMAP
970 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700971 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700972 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100973 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700974 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700975 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800976 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100977 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200978 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100979
viresh kumarcee37e52010-04-01 12:31:05 +0100980config PLAT_SPEAR
981 bool "ST SPEAr"
982 select ARM_AMBA
983 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100984 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100985 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100986 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100987 select HAVE_CLK
988 help
989 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
990
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100991config ARCH_VT8500
992 bool "VIA/WonderMedia 85xx"
993 select CPU_ARM926T
994 select GENERIC_GPIO
995 select ARCH_HAS_CPUFREQ
996 select GENERIC_CLOCKEVENTS
997 select ARCH_REQUIRE_GPIOLIB
998 select HAVE_PWM
999 help
1000 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +08001001
John Linnb85a3ef2011-06-20 11:47:27 -06001002config ARCH_ZYNQ
1003 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001004 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001005 select GENERIC_CLOCKEVENTS
1006 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001007 select ARM_GIC
1008 select ARM_AMBA
1009 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001010 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001011 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001012 help
John Linnb85a3ef2011-06-20 11:47:27 -06001013 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014endchoice
1015
Russell Kingccf50e22010-03-15 19:03:06 +00001016#
1017# This is sorted alphabetically by mach-* pathname. However, plat-*
1018# Kconfigs may be included either alphabetically (according to the
1019# plat- suffix) or along side the corresponding mach-* source.
1020#
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-at91/Kconfig"
1022
1023source "arch/arm/mach-bcmring/Kconfig"
1024
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025source "arch/arm/mach-clps711x/Kconfig"
1026
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001027source "arch/arm/mach-cns3xxx/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/mach-davinci/Kconfig"
1030
1031source "arch/arm/mach-dove/Kconfig"
1032
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001033source "arch/arm/mach-ep93xx/Kconfig"
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035source "arch/arm/mach-footbridge/Kconfig"
1036
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001037source "arch/arm/mach-gemini/Kconfig"
1038
Russell King95b8f202010-01-14 11:43:54 +00001039source "arch/arm/mach-h720x/Kconfig"
1040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041source "arch/arm/mach-integrator/Kconfig"
1042
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001043source "arch/arm/mach-iop32x/Kconfig"
1044
1045source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046
Dan Williams285f5fa2006-12-07 02:59:39 +01001047source "arch/arm/mach-iop13xx/Kconfig"
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049source "arch/arm/mach-ixp4xx/Kconfig"
1050
1051source "arch/arm/mach-ixp2000/Kconfig"
1052
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001053source "arch/arm/mach-ixp23xx/Kconfig"
1054
Russell King95b8f202010-01-14 11:43:54 +00001055source "arch/arm/mach-kirkwood/Kconfig"
1056
1057source "arch/arm/mach-ks8695/Kconfig"
1058
Kevin Wells40805942010-07-27 08:49:04 -07001059source "arch/arm/mach-lpc32xx/Kconfig"
1060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-msm/Kconfig"
1062
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001063source "arch/arm/mach-mv78xx0/Kconfig"
1064
Russell King95b8f202010-01-14 11:43:54 +00001065source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001067source "arch/arm/mach-mxs/Kconfig"
1068
Russell King95b8f202010-01-14 11:43:54 +00001069source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001070
Russell King95b8f202010-01-14 11:43:54 +00001071source "arch/arm/mach-nomadik/Kconfig"
1072source "arch/arm/plat-nomadik/Kconfig"
1073
Tony Lindgrend48af152005-07-10 19:58:17 +01001074source "arch/arm/plat-omap/Kconfig"
1075
1076source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Tony Lindgren1dbae812005-11-10 14:26:51 +00001078source "arch/arm/mach-omap2/Kconfig"
1079
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001080source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-pxa/Kconfig"
1083source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084
Russell King95b8f202010-01-14 11:43:54 +00001085source "arch/arm/mach-mmp/Kconfig"
1086
1087source "arch/arm/mach-realview/Kconfig"
1088
1089source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001090
Ben Dookscf383672009-11-10 00:14:58 +00001091source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001092source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001093source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001094
viresh kumarcee37e52010-04-01 12:31:05 +01001095source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001096
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001097source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001098if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001099source "arch/arm/mach-s3c2412/Kconfig"
1100source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001101endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102
Ben Dooksa08ab632008-10-21 14:06:39 +01001103if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001104source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001105endif
1106
Kukjin Kim49b7a492010-09-07 15:47:18 +09001107source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001108
Byungho Min5a7652f2009-06-23 21:39:42 +09001109source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001110
Kukjin Kim170f4e42010-02-24 16:40:44 +09001111source "arch/arm/mach-s5pv210/Kconfig"
1112
Kukjin Kim83014572011-11-06 13:54:56 +09001113source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001114
Russell King882d01f2010-03-02 23:40:15 +00001115source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116
Erik Gillingc5f80062010-01-21 16:53:02 -08001117source "arch/arm/mach-tegra/Kconfig"
1118
Russell King95b8f202010-01-14 11:43:54 +00001119source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
Russell King95b8f202010-01-14 11:43:54 +00001121source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122
1123source "arch/arm/mach-versatile/Kconfig"
1124
Russell Kingceade892010-02-11 21:44:53 +00001125source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001126source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001127
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001128source "arch/arm/mach-vt8500/Kconfig"
1129
wanzongshun7ec80dd2008-12-03 03:55:38 +01001130source "arch/arm/mach-w90x900/Kconfig"
1131
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132# Definitions to make life easier
1133config ARCH_ACORN
1134 bool
1135
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001136config PLAT_IOP
1137 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001138 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001139
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001140config PLAT_ORION
1141 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001142 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001143 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001144
Eric Miaobd5ce432009-01-20 12:06:01 +08001145config PLAT_PXA
1146 bool
1147
Russell Kingf4b8b312010-01-14 12:48:06 +00001148config PLAT_VERSATILE
1149 bool
1150
Russell Kinge3887712010-01-14 13:30:16 +00001151config ARM_TIMER_SP804
1152 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001153 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001154 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001155
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156source arch/arm/mm/Kconfig
1157
Russell King958cab02011-12-11 10:04:00 +00001158config ARM_NR_BANKS
1159 int
1160 default 16 if ARCH_EP93XX
1161 default 8
1162
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001163config IWMMXT
1164 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001165 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1166 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001167 help
1168 Enable support for iWMMXt context switching at run time if
1169 running on a CPU that supports it.
1170
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171config XSCALE_PMU
1172 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001173 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174 default y
1175
Jamie Iles0f4f0672010-02-02 20:23:15 +01001176config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001177 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001178 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001179 default y
1180 bool
1181
eric miao52108642010-12-13 09:42:34 +01001182config MULTI_IRQ_HANDLER
1183 bool
1184 help
1185 Allow each machine to specify it's own IRQ handler at run time.
1186
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001187if !MMU
1188source "arch/arm/Kconfig-nommu"
1189endif
1190
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001191config ARM_ERRATA_411920
1192 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001193 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001194 help
1195 Invalidation of the Instruction Cache operation can
1196 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1197 It does not affect the MPCore. This option enables the ARM Ltd.
1198 recommended workaround.
1199
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001200config ARM_ERRATA_430973
1201 bool "ARM errata: Stale prediction on replaced interworking branch"
1202 depends on CPU_V7
1203 help
1204 This option enables the workaround for the 430973 Cortex-A8
1205 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1206 interworking branch is replaced with another code sequence at the
1207 same virtual address, whether due to self-modifying code or virtual
1208 to physical address re-mapping, Cortex-A8 does not recover from the
1209 stale interworking branch prediction. This results in Cortex-A8
1210 executing the new code sequence in the incorrect ARM or Thumb state.
1211 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1212 and also flushes the branch target cache at every context switch.
1213 Note that setting specific bits in the ACTLR register may not be
1214 available in non-secure mode.
1215
Catalin Marinas855c5512009-04-30 17:06:15 +01001216config ARM_ERRATA_458693
1217 bool "ARM errata: Processor deadlock when a false hazard is created"
1218 depends on CPU_V7
1219 help
1220 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1221 erratum. For very specific sequences of memory operations, it is
1222 possible for a hazard condition intended for a cache line to instead
1223 be incorrectly associated with a different cache line. This false
1224 hazard might then cause a processor deadlock. The workaround enables
1225 the L1 caching of the NEON accesses and disables the PLD instruction
1226 in the ACTLR register. Note that setting specific bits in the ACTLR
1227 register may not be available in non-secure mode.
1228
Catalin Marinas0516e462009-04-30 17:06:20 +01001229config ARM_ERRATA_460075
1230 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1231 depends on CPU_V7
1232 help
1233 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1234 erratum. Any asynchronous access to the L2 cache may encounter a
1235 situation in which recent store transactions to the L2 cache are lost
1236 and overwritten with stale memory contents from external memory. The
1237 workaround disables the write-allocate mode for the L2 cache via the
1238 ACTLR register. Note that setting specific bits in the ACTLR register
1239 may not be available in non-secure mode.
1240
Will Deacon9f050272010-09-14 09:51:43 +01001241config ARM_ERRATA_742230
1242 bool "ARM errata: DMB operation may be faulty"
1243 depends on CPU_V7 && SMP
1244 help
1245 This option enables the workaround for the 742230 Cortex-A9
1246 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1247 between two write operations may not ensure the correct visibility
1248 ordering of the two writes. This workaround sets a specific bit in
1249 the diagnostic register of the Cortex-A9 which causes the DMB
1250 instruction to behave as a DSB, ensuring the correct behaviour of
1251 the two writes.
1252
Will Deacona672e992010-09-14 09:53:02 +01001253config ARM_ERRATA_742231
1254 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1255 depends on CPU_V7 && SMP
1256 help
1257 This option enables the workaround for the 742231 Cortex-A9
1258 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1259 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1260 accessing some data located in the same cache line, may get corrupted
1261 data due to bad handling of the address hazard when the line gets
1262 replaced from one of the CPUs at the same time as another CPU is
1263 accessing it. This workaround sets specific bits in the diagnostic
1264 register of the Cortex-A9 which reduces the linefill issuing
1265 capabilities of the processor.
1266
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001267config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001268 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001269 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001270 help
1271 The PL310 L2 cache controller implements three types of Clean &
1272 Invalidate maintenance operations: by Physical Address
1273 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1274 They are architecturally defined to behave as the execution of a
1275 clean operation followed immediately by an invalidate operation,
1276 both performing to the same memory location. This functionality
1277 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001278 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001279
1280config ARM_ERRATA_720789
1281 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001282 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001283 help
1284 This option enables the workaround for the 720789 Cortex-A9 (prior to
1285 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1286 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1287 As a consequence of this erratum, some TLB entries which should be
1288 invalidated are not, resulting in an incoherency in the system page
1289 tables. The workaround changes the TLB flushing routines to invalidate
1290 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001291
Russell King1f0090a2011-03-16 23:35:25 +00001292config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001293 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001294 depends on CACHE_L2X0
1295 help
1296 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1297 operation (offset 0x7FC). This operation runs in background so that
1298 PL310 can handle normal accesses while it is in progress. Under very
1299 rare circumstances, due to this erratum, write data can be lost when
1300 PL310 treats a cacheable write transaction during a Clean &
1301 Invalidate by Way operation.
1302
Will Deacon475d92f2010-09-28 14:02:02 +01001303config ARM_ERRATA_743622
1304 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1305 depends on CPU_V7
1306 help
1307 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001308 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001309 optimisation in the Cortex-A9 Store Buffer may lead to data
1310 corruption. This workaround sets a specific bit in the diagnostic
1311 register of the Cortex-A9 which disables the Store Buffer
1312 optimisation, preventing the defect from occurring. This has no
1313 visible impact on the overall performance or power consumption of the
1314 processor.
1315
Will Deacon9a27c272011-02-18 16:36:35 +01001316config ARM_ERRATA_751472
1317 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001318 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001319 help
1320 This option enables the workaround for the 751472 Cortex-A9 (prior
1321 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1322 completion of a following broadcasted operation if the second
1323 operation is received by a CPU before the ICIALLUIS has completed,
1324 potentially leading to corrupted entries in the cache or TLB.
1325
Will Deaconfa0ce402011-11-14 17:24:57 +01001326config PL310_ERRATA_753970
1327 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001328 depends on CACHE_PL310
1329 help
1330 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1331
1332 Under some condition the effect of cache sync operation on
1333 the store buffer still remains when the operation completes.
1334 This means that the store buffer is always asked to drain and
1335 this prevents it from merging any further writes. The workaround
1336 is to replace the normal offset of cache sync operation (0x730)
1337 by another offset targeting an unmapped PL310 register 0x740.
1338 This has the same effect as the cache sync operation: store buffer
1339 drain and waiting for all buffers empty.
1340
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001341config ARM_ERRATA_754322
1342 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1343 depends on CPU_V7
1344 help
1345 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1346 r3p*) erratum. A speculative memory access may cause a page table walk
1347 which starts prior to an ASID switch but completes afterwards. This
1348 can populate the micro-TLB with a stale entry which may be hit with
1349 the new ASID. This workaround places two dsb instructions in the mm
1350 switching code so that no page table walks can cross the ASID switch.
1351
Will Deacon5dab26a2011-03-04 12:38:54 +01001352config ARM_ERRATA_754327
1353 bool "ARM errata: no automatic Store Buffer drain"
1354 depends on CPU_V7 && SMP
1355 help
1356 This option enables the workaround for the 754327 Cortex-A9 (prior to
1357 r2p0) erratum. The Store Buffer does not have any automatic draining
1358 mechanism and therefore a livelock may occur if an external agent
1359 continuously polls a memory location waiting to observe an update.
1360 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1361 written polling loops from denying visibility of updates to memory.
1362
Catalin Marinas145e10e2011-08-15 11:04:41 +01001363config ARM_ERRATA_364296
1364 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1365 depends on CPU_V6 && !SMP
1366 help
1367 This options enables the workaround for the 364296 ARM1136
1368 r0p2 erratum (possible cache data corruption with
1369 hit-under-miss enabled). It sets the undocumented bit 31 in
1370 the auxiliary control register and the FI bit in the control
1371 register, thus disabling hit-under-miss without putting the
1372 processor into full low interrupt latency mode. ARM11MPCore
1373 is not affected.
1374
Will Deaconf630c1b2011-09-15 11:45:15 +01001375config ARM_ERRATA_764369
1376 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1377 depends on CPU_V7 && SMP
1378 help
1379 This option enables the workaround for erratum 764369
1380 affecting Cortex-A9 MPCore with two or more processors (all
1381 current revisions). Under certain timing circumstances, a data
1382 cache line maintenance operation by MVA targeting an Inner
1383 Shareable memory region may fail to proceed up to either the
1384 Point of Coherency or to the Point of Unification of the
1385 system. This workaround adds a DSB instruction before the
1386 relevant cache maintenance functions and sets a specific bit
1387 in the diagnostic control register of the SCU.
1388
Will Deacon11ed0ba2011-11-14 17:24:58 +01001389config PL310_ERRATA_769419
1390 bool "PL310 errata: no automatic Store Buffer drain"
1391 depends on CACHE_L2X0
1392 help
1393 On revisions of the PL310 prior to r3p2, the Store Buffer does
1394 not automatically drain. This can cause normal, non-cacheable
1395 writes to be retained when the memory system is idle, leading
1396 to suboptimal I/O performance for drivers using coherent DMA.
1397 This option adds a write barrier to the cpu_idle loop so that,
1398 on systems with an outer cache, the store buffer is drained
1399 explicitly.
1400
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401endmenu
1402
1403source "arch/arm/common/Kconfig"
1404
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405menu "Bus support"
1406
1407config ARM_AMBA
1408 bool
1409
1410config ISA
1411 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412 help
1413 Find out whether you have ISA slots on your motherboard. ISA is the
1414 name of a bus system, i.e. the way the CPU talks to the other stuff
1415 inside your box. Other bus systems are PCI, EISA, MicroChannel
1416 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1417 newer boards don't support it. If you have ISA, say Y, otherwise N.
1418
Russell King065909b2006-01-04 15:44:16 +00001419# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420config ISA_DMA
1421 bool
Russell King065909b2006-01-04 15:44:16 +00001422 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423
Russell King065909b2006-01-04 15:44:16 +00001424# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001425config ISA_DMA_API
1426 bool
Al Viro5cae8412005-05-04 05:39:22 +01001427
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001429 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 help
1431 Find out whether you have a PCI motherboard. PCI is the name of a
1432 bus system, i.e. the way the CPU talks to the other stuff inside
1433 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1434 VESA. If you have PCI, say Y, otherwise N.
1435
Anton Vorontsov52882172010-04-19 13:20:49 +01001436config PCI_DOMAINS
1437 bool
1438 depends on PCI
1439
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001440config PCI_NANOENGINE
1441 bool "BSE nanoEngine PCI support"
1442 depends on SA1100_NANOENGINE
1443 help
1444 Enable PCI on the BSE nanoEngine board.
1445
Matthew Wilcox36e23592007-07-10 10:54:40 -06001446config PCI_SYSCALL
1447 def_bool PCI
1448
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449# Select the host bridge type
1450config PCI_HOST_VIA82C505
1451 bool
1452 depends on PCI && ARCH_SHARK
1453 default y
1454
Mike Rapoporta0113a92007-11-25 08:55:34 +01001455config PCI_HOST_ITE8152
1456 bool
1457 depends on PCI && MACH_ARMCORE
1458 default y
1459 select DMABOUNCE
1460
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461source "drivers/pci/Kconfig"
1462
1463source "drivers/pcmcia/Kconfig"
1464
1465endmenu
1466
1467menu "Kernel Features"
1468
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001469source "kernel/time/Kconfig"
1470
Dave Martin3b556582011-12-07 15:38:04 +00001471config HAVE_SMP
1472 bool
1473 help
1474 This option should be selected by machines which have an SMP-
1475 capable CPU.
1476
1477 The only effect of this option is to make the SMP-related
1478 options available to the user for configuration.
1479
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001481 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001482 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001483 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001484 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001485 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001486 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001487 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488 help
1489 This enables support for systems with more than one CPU. If you have
1490 a system with only one CPU, like most personal computers, say N. If
1491 you have a system with more than one CPU, say Y.
1492
1493 If you say N here, the kernel will run on single and multiprocessor
1494 machines, but will use only one CPU of a multiprocessor machine. If
1495 you say Y here, the kernel will run on many, but not all, single
1496 processor machines. On a single processor machine, the kernel will
1497 run faster if you say N here.
1498
Paul Bolle395cf962011-08-15 02:02:26 +02001499 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001501 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502
1503 If you don't know what to do here, say N.
1504
Russell Kingf00ec482010-09-04 10:47:48 +01001505config SMP_ON_UP
1506 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1507 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001508 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001509 default y
1510 help
1511 SMP kernels contain instructions which fail on non-SMP processors.
1512 Enabling this option allows the kernel to modify itself to make
1513 these instructions safe. Disabling it allows about 1K of space
1514 savings.
1515
1516 If you don't know what to do here, say Y.
1517
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001518config ARM_CPU_TOPOLOGY
1519 bool "Support cpu topology definition"
1520 depends on SMP && CPU_V7
1521 default y
1522 help
1523 Support ARM cpu topology definition. The MPIDR register defines
1524 affinity between processors which is then used to describe the cpu
1525 topology of an ARM System.
1526
1527config SCHED_MC
1528 bool "Multi-core scheduler support"
1529 depends on ARM_CPU_TOPOLOGY
1530 help
1531 Multi-core scheduler support improves the CPU scheduler's decision
1532 making when dealing with multi-core CPU chips at a cost of slightly
1533 increased overhead in some places. If unsure say N here.
1534
1535config SCHED_SMT
1536 bool "SMT scheduler support"
1537 depends on ARM_CPU_TOPOLOGY
1538 help
1539 Improves the CPU scheduler's decision making when dealing with
1540 MultiThreading at a cost of slightly increased overhead in some
1541 places. If unsure say N here.
1542
Russell Kinga8cbcd92009-05-16 11:51:14 +01001543config HAVE_ARM_SCU
1544 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001545 help
1546 This option enables support for the ARM system coherency unit
1547
Russell Kingf32f4ce2009-05-16 12:14:21 +01001548config HAVE_ARM_TWD
1549 bool
1550 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001551 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001552 help
1553 This options enables support for the ARM timer and watchdog unit
1554
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001555choice
1556 prompt "Memory split"
1557 default VMSPLIT_3G
1558 help
1559 Select the desired split between kernel and user memory.
1560
1561 If you are not absolutely sure what you are doing, leave this
1562 option alone!
1563
1564 config VMSPLIT_3G
1565 bool "3G/1G user/kernel split"
1566 config VMSPLIT_2G
1567 bool "2G/2G user/kernel split"
1568 config VMSPLIT_1G
1569 bool "1G/3G user/kernel split"
1570endchoice
1571
1572config PAGE_OFFSET
1573 hex
1574 default 0x40000000 if VMSPLIT_1G
1575 default 0x80000000 if VMSPLIT_2G
1576 default 0xC0000000
1577
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578config NR_CPUS
1579 int "Maximum number of CPUs (2-32)"
1580 range 2 32
1581 depends on SMP
1582 default "4"
1583
Russell Kinga054a812005-11-02 22:24:33 +00001584config HOTPLUG_CPU
1585 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1586 depends on SMP && HOTPLUG && EXPERIMENTAL
1587 help
1588 Say Y here to experiment with turning CPUs off and on. CPUs
1589 can be controlled through /sys/devices/system/cpu.
1590
Russell King37ee16a2005-11-08 19:08:05 +00001591config LOCAL_TIMERS
1592 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001593 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001594 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001595 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001596 help
1597 Enable support for local timers on SMP platforms, rather then the
1598 legacy IPI broadcast method. Local timers allows the system
1599 accounting to be spread across the timer interval, preventing a
1600 "thundering herd" at every timer tick.
1601
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001602config ARCH_NR_GPIO
1603 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001604 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001605 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001606 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001607 default 0
1608 help
1609 Maximum number of GPIOs in the system.
1610
1611 If unsure, leave the default value.
1612
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001613source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614
Russell Kingf8065812006-03-02 22:41:59 +00001615config HZ
1616 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001617 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001618 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001619 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001620 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001621 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001622 default 100
1623
Catalin Marinas16c79652009-07-24 12:33:02 +01001624config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001625 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001626 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001627 select AEABI
1628 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001629 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001630 help
1631 By enabling this option, the kernel will be compiled in
1632 Thumb-2 mode. A compiler/assembler that understand the unified
1633 ARM-Thumb syntax is needed.
1634
1635 If unsure, say N.
1636
Dave Martin6f685c52011-03-03 11:41:12 +01001637config THUMB2_AVOID_R_ARM_THM_JUMP11
1638 bool "Work around buggy Thumb-2 short branch relocations in gas"
1639 depends on THUMB2_KERNEL && MODULES
1640 default y
1641 help
1642 Various binutils versions can resolve Thumb-2 branches to
1643 locally-defined, preemptible global symbols as short-range "b.n"
1644 branch instructions.
1645
1646 This is a problem, because there's no guarantee the final
1647 destination of the symbol, or any candidate locations for a
1648 trampoline, are within range of the branch. For this reason, the
1649 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1650 relocation in modules at all, and it makes little sense to add
1651 support.
1652
1653 The symptom is that the kernel fails with an "unsupported
1654 relocation" error when loading some modules.
1655
1656 Until fixed tools are available, passing
1657 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1658 code which hits this problem, at the cost of a bit of extra runtime
1659 stack usage in some cases.
1660
1661 The problem is described in more detail at:
1662 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1663
1664 Only Thumb-2 kernels are affected.
1665
1666 Unless you are sure your tools don't have this problem, say Y.
1667
Catalin Marinas0becb082009-07-24 12:32:53 +01001668config ARM_ASM_UNIFIED
1669 bool
1670
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001671config AEABI
1672 bool "Use the ARM EABI to compile the kernel"
1673 help
1674 This option allows for the kernel to be compiled using the latest
1675 ARM ABI (aka EABI). This is only useful if you are using a user
1676 space environment that is also compiled with EABI.
1677
1678 Since there are major incompatibilities between the legacy ABI and
1679 EABI, especially with regard to structure member alignment, this
1680 option also changes the kernel syscall calling convention to
1681 disambiguate both ABIs and allow for backward compatibility support
1682 (selected with CONFIG_OABI_COMPAT).
1683
1684 To use this you need GCC version 4.0.0 or later.
1685
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001686config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001687 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001688 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001689 default y
1690 help
1691 This option preserves the old syscall interface along with the
1692 new (ARM EABI) one. It also provides a compatibility layer to
1693 intercept syscalls that have structure arguments which layout
1694 in memory differs between the legacy ABI and the new ARM EABI
1695 (only for non "thumb" binaries). This option adds a tiny
1696 overhead to all syscalls and produces a slightly larger kernel.
1697 If you know you'll be using only pure EABI user space then you
1698 can say N here. If this option is not selected and you attempt
1699 to execute a legacy ABI binary then the result will be
1700 UNPREDICTABLE (in fact it can be predicted that it won't work
1701 at all). If in doubt say Y.
1702
Mel Gormaneb335752009-05-13 17:34:48 +01001703config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001704 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001705
Russell King05944d72006-11-30 20:43:51 +00001706config ARCH_SPARSEMEM_ENABLE
1707 bool
1708
Russell King07a2f732008-10-01 21:39:58 +01001709config ARCH_SPARSEMEM_DEFAULT
1710 def_bool ARCH_SPARSEMEM_ENABLE
1711
Russell King05944d72006-11-30 20:43:51 +00001712config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001713 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001714
Will Deacon7b7bf492011-05-19 13:21:14 +01001715config HAVE_ARCH_PFN_VALID
1716 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1717
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001718config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001719 bool "High Memory Support"
1720 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001721 help
1722 The address space of ARM processors is only 4 Gigabytes large
1723 and it has to accommodate user address space, kernel address
1724 space as well as some memory mapped IO. That means that, if you
1725 have a large amount of physical memory and/or IO, not all of the
1726 memory can be "permanently mapped" by the kernel. The physical
1727 memory that is not permanently mapped is called "high memory".
1728
1729 Depending on the selected kernel/user memory split, minimum
1730 vmalloc space and actual amount of RAM, you may not need this
1731 option which should result in a slightly faster kernel.
1732
1733 If unsure, say n.
1734
Russell King65cec8e2009-08-17 20:02:06 +01001735config HIGHPTE
1736 bool "Allocate 2nd-level pagetables from highmem"
1737 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001738
Jamie Iles1b8873a2010-02-02 20:25:44 +01001739config HW_PERF_EVENTS
1740 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001741 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001742 default y
1743 help
1744 Enable hardware performance counter support for perf events. If
1745 disabled, perf events will use software events only.
1746
Dave Hansen3f22ab22005-06-23 00:07:43 -07001747source "mm/Kconfig"
1748
Magnus Dammc1b2d972010-07-05 10:00:11 +01001749config FORCE_MAX_ZONEORDER
1750 int "Maximum zone order" if ARCH_SHMOBILE
1751 range 11 64 if ARCH_SHMOBILE
1752 default "9" if SA1111
1753 default "11"
1754 help
1755 The kernel memory allocator divides physically contiguous memory
1756 blocks into "zones", where each zone is a power of two number of
1757 pages. This option selects the largest power of two that the kernel
1758 keeps in the memory allocator. If you need to allocate very large
1759 blocks of physically contiguous memory, then you may need to
1760 increase this value.
1761
1762 This config option is actually maximum order plus one. For example,
1763 a value of 11 means that the largest free memory block is 2^10 pages.
1764
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765config LEDS
1766 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001767 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001768 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1770 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001771 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001772 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001773 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774 help
1775 If you say Y here, the LEDs on your machine will be used
1776 to provide useful information about your current system status.
1777
1778 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1779 be able to select which LEDs are active using the options below. If
1780 you are compiling a kernel for the EBSA-110 or the LART however, the
1781 red LED will simply flash regularly to indicate that the system is
1782 still functional. It is safe to say Y here if you have a CATS
1783 system, but the driver will do nothing.
1784
1785config LEDS_TIMER
1786 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001787 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1788 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001790 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 default y if ARCH_EBSA110
1792 help
1793 If you say Y here, one of the system LEDs (the green one on the
1794 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1795 will flash regularly to indicate that the system is still
1796 operational. This is mainly useful to kernel hackers who are
1797 debugging unstable kernels.
1798
1799 The LART uses the same LED for both Timer LED and CPU usage LED
1800 functions. You may choose to use both, but the Timer LED function
1801 will overrule the CPU usage LED.
1802
1803config LEDS_CPU
1804 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001805 !ARCH_OMAP) \
1806 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1807 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808 depends on LEDS
1809 help
1810 If you say Y here, the red LED will be used to give a good real
1811 time indication of CPU usage, by lighting whenever the idle task
1812 is not currently executing.
1813
1814 The LART uses the same LED for both Timer LED and CPU usage LED
1815 functions. You may choose to use both, but the Timer LED function
1816 will overrule the CPU usage LED.
1817
1818config ALIGNMENT_TRAP
1819 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001820 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001822 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001824 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1826 address divisible by 4. On 32-bit ARM processors, these non-aligned
1827 fetch/store instructions will be emulated in software if you say
1828 here, which has a severe performance impact. This is necessary for
1829 correct operation of some network protocols. With an IP-only
1830 configuration it is safe to say N, otherwise say Y.
1831
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001832config UACCESS_WITH_MEMCPY
1833 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1834 depends on MMU && EXPERIMENTAL
1835 default y if CPU_FEROCEON
1836 help
1837 Implement faster copy_to_user and clear_user methods for CPU
1838 cores where a 8-word STM instruction give significantly higher
1839 memory write throughput than a sequence of individual 32bit stores.
1840
1841 A possible side effect is a slight increase in scheduling latency
1842 between threads sharing the same address space if they invoke
1843 such copy operations with large buffers.
1844
1845 However, if the CPU data cache is using a write-allocate mode,
1846 this option is unlikely to provide any performance gain.
1847
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001848config SECCOMP
1849 bool
1850 prompt "Enable seccomp to safely compute untrusted bytecode"
1851 ---help---
1852 This kernel feature is useful for number crunching applications
1853 that may need to compute untrusted bytecode during their
1854 execution. By using pipes or other transports made available to
1855 the process as file descriptors supporting the read/write
1856 syscalls, it's possible to isolate those applications in
1857 their own address space using seccomp. Once seccomp is
1858 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1859 and the task is only allowed to execute a few safe syscalls
1860 defined by each seccomp mode.
1861
Nicolas Pitrec743f382010-05-24 23:55:42 -04001862config CC_STACKPROTECTOR
1863 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001864 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001865 help
1866 This option turns on the -fstack-protector GCC feature. This
1867 feature puts, at the beginning of functions, a canary value on
1868 the stack just before the return address, and validates
1869 the value just before actually returning. Stack based buffer
1870 overflows (that need to overwrite this return address) now also
1871 overwrite the canary, which gets detected and the attack is then
1872 neutralized via a kernel panic.
1873 This feature requires gcc version 4.2 or above.
1874
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001875config DEPRECATED_PARAM_STRUCT
1876 bool "Provide old way to pass kernel parameters"
1877 help
1878 This was deprecated in 2001 and announced to live on for 5 years.
1879 Some old boot loaders still use this way.
1880
Linus Torvalds1da177e2005-04-16 15:20:36 -07001881endmenu
1882
1883menu "Boot options"
1884
Grant Likely9eb8f672011-04-28 14:27:20 -06001885config USE_OF
1886 bool "Flattened Device Tree support"
1887 select OF
1888 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001889 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001890 help
1891 Include support for flattened device tree machine descriptions.
1892
Linus Torvalds1da177e2005-04-16 15:20:36 -07001893# Compressed boot loader in ROM. Yes, we really want to ask about
1894# TEXT and BSS so we preserve their values in the config files.
1895config ZBOOT_ROM_TEXT
1896 hex "Compressed ROM boot loader base address"
1897 default "0"
1898 help
1899 The physical address at which the ROM-able zImage is to be
1900 placed in the target. Platforms which normally make use of
1901 ROM-able zImage formats normally set this to a suitable
1902 value in their defconfig file.
1903
1904 If ZBOOT_ROM is not enabled, this has no effect.
1905
1906config ZBOOT_ROM_BSS
1907 hex "Compressed ROM boot loader BSS address"
1908 default "0"
1909 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001910 The base address of an area of read/write memory in the target
1911 for the ROM-able zImage which must be available while the
1912 decompressor is running. It must be large enough to hold the
1913 entire decompressed kernel plus an additional 128 KiB.
1914 Platforms which normally make use of ROM-able zImage formats
1915 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916
1917 If ZBOOT_ROM is not enabled, this has no effect.
1918
1919config ZBOOT_ROM
1920 bool "Compressed boot loader in ROM/flash"
1921 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1922 help
1923 Say Y here if you intend to execute your compressed kernel image
1924 (zImage) directly from ROM or flash. If unsure, say N.
1925
Simon Horman090ab3f2011-04-26 06:29:53 +01001926choice
1927 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1928 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1929 default ZBOOT_ROM_NONE
1930 help
1931 Include experimental SD/MMC loading code in the ROM-able zImage.
1932 With this enabled it is possible to write the the ROM-able zImage
1933 kernel image to an MMC or SD card and boot the kernel straight
1934 from the reset vector. At reset the processor Mask ROM will load
1935 the first part of the the ROM-able zImage which in turn loads the
1936 rest the kernel image to RAM.
1937
1938config ZBOOT_ROM_NONE
1939 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1940 help
1941 Do not load image from SD or MMC
1942
Simon Hormanf45b1142011-01-11 04:01:08 +01001943config ZBOOT_ROM_MMCIF
1944 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001945 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001946 Load image from MMCIF hardware block.
1947
1948config ZBOOT_ROM_SH_MOBILE_SDHI
1949 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1950 help
1951 Load image from SDHI hardware block
1952
1953endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001954
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001955config ARM_APPENDED_DTB
1956 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1957 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1958 help
1959 With this option, the boot code will look for a device tree binary
1960 (DTB) appended to zImage
1961 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1962
1963 This is meant as a backward compatibility convenience for those
1964 systems with a bootloader that can't be upgraded to accommodate
1965 the documented boot protocol using a device tree.
1966
1967 Beware that there is very little in terms of protection against
1968 this option being confused by leftover garbage in memory that might
1969 look like a DTB header after a reboot if no actual DTB is appended
1970 to zImage. Do not leave this option active in a production kernel
1971 if you don't intend to always append a DTB. Proper passing of the
1972 location into r2 of a bootloader provided DTB is always preferable
1973 to this option.
1974
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001975config ARM_ATAG_DTB_COMPAT
1976 bool "Supplement the appended DTB with traditional ATAG information"
1977 depends on ARM_APPENDED_DTB
1978 help
1979 Some old bootloaders can't be updated to a DTB capable one, yet
1980 they provide ATAGs with memory configuration, the ramdisk address,
1981 the kernel cmdline string, etc. Such information is dynamically
1982 provided by the bootloader and can't always be stored in a static
1983 DTB. To allow a device tree enabled kernel to be used with such
1984 bootloaders, this option allows zImage to extract the information
1985 from the ATAG list and store it at run time into the appended DTB.
1986
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987config CMDLINE
1988 string "Default kernel command string"
1989 default ""
1990 help
1991 On some architectures (EBSA110 and CATS), there is currently no way
1992 for the boot loader to pass arguments to the kernel. For these
1993 architectures, you should supply some command-line options at build
1994 time by entering them here. As a minimum, you should specify the
1995 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1996
Victor Boivie4394c122011-05-04 17:07:55 +01001997choice
1998 prompt "Kernel command line type" if CMDLINE != ""
1999 default CMDLINE_FROM_BOOTLOADER
2000
2001config CMDLINE_FROM_BOOTLOADER
2002 bool "Use bootloader kernel arguments if available"
2003 help
2004 Uses the command-line options passed by the boot loader. If
2005 the boot loader doesn't provide any, the default kernel command
2006 string provided in CMDLINE will be used.
2007
2008config CMDLINE_EXTEND
2009 bool "Extend bootloader kernel arguments"
2010 help
2011 The command-line arguments provided by the boot loader will be
2012 appended to the default kernel command string.
2013
Alexander Holler92d20402010-02-16 19:04:53 +01002014config CMDLINE_FORCE
2015 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002016 help
2017 Always use the default kernel command string, even if the boot
2018 loader passes other arguments to the kernel.
2019 This is useful if you cannot or don't want to change the
2020 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002021endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002022
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023config XIP_KERNEL
2024 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002025 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002026 help
2027 Execute-In-Place allows the kernel to run from non-volatile storage
2028 directly addressable by the CPU, such as NOR flash. This saves RAM
2029 space since the text section of the kernel is not loaded from flash
2030 to RAM. Read-write sections, such as the data section and stack,
2031 are still copied to RAM. The XIP kernel is not compressed since
2032 it has to run directly from flash, so it will take more space to
2033 store it. The flash address used to link the kernel object files,
2034 and for storing it, is configuration dependent. Therefore, if you
2035 say Y here, you must know the proper physical address where to
2036 store the kernel image depending on your own flash memory usage.
2037
2038 Also note that the make target becomes "make xipImage" rather than
2039 "make zImage" or "make Image". The final kernel binary to put in
2040 ROM memory will be arch/arm/boot/xipImage.
2041
2042 If unsure, say N.
2043
2044config XIP_PHYS_ADDR
2045 hex "XIP Kernel Physical Location"
2046 depends on XIP_KERNEL
2047 default "0x00080000"
2048 help
2049 This is the physical address in your flash memory the kernel will
2050 be linked for and stored to. This address is dependent on your
2051 own flash usage.
2052
Richard Purdiec587e4a2007-02-06 21:29:00 +01002053config KEXEC
2054 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002055 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002056 help
2057 kexec is a system call that implements the ability to shutdown your
2058 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002059 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002060 you can start any kernel with it, not just Linux.
2061
2062 It is an ongoing process to be certain the hardware in a machine
2063 is properly shutdown, so do not be surprised if this code does not
2064 initially work for you. It may help to enable device hotplugging
2065 support.
2066
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002067config ATAGS_PROC
2068 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002069 depends on KEXEC
2070 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002071 help
2072 Should the atags used to boot the kernel be exported in an "atags"
2073 file in procfs. Useful with kexec.
2074
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002075config CRASH_DUMP
2076 bool "Build kdump crash kernel (EXPERIMENTAL)"
2077 depends on EXPERIMENTAL
2078 help
2079 Generate crash dump after being started by kexec. This should
2080 be normally only set in special crash dump kernels which are
2081 loaded in the main kernel with kexec-tools into a specially
2082 reserved region and then later executed after a crash by
2083 kdump/kexec. The crash dump kernel must be compiled to a
2084 memory address not used by the main kernel
2085
2086 For more details see Documentation/kdump/kdump.txt
2087
Eric Miaoe69edc792010-07-05 15:56:50 +02002088config AUTO_ZRELADDR
2089 bool "Auto calculation of the decompressed kernel image address"
2090 depends on !ZBOOT_ROM && !ARCH_U300
2091 help
2092 ZRELADDR is the physical address where the decompressed kernel
2093 image will be placed. If AUTO_ZRELADDR is selected, the address
2094 will be determined at run-time by masking the current IP with
2095 0xf8000000. This assumes the zImage being placed in the first 128MB
2096 from start of memory.
2097
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098endmenu
2099
Russell Kingac9d7ef2008-08-18 17:26:00 +01002100menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101
Ben Dooks89c52ed2009-07-30 23:23:24 +01002102if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103
2104source "drivers/cpufreq/Kconfig"
2105
Yong Shen64f102b2010-10-21 21:18:59 +08002106config CPU_FREQ_IMX
2107 tristate "CPUfreq driver for i.MX CPUs"
2108 depends on ARCH_MXC && CPU_FREQ
2109 help
2110 This enables the CPUfreq driver for i.MX CPUs.
2111
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112config CPU_FREQ_SA1100
2113 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114
2115config CPU_FREQ_SA1110
2116 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117
2118config CPU_FREQ_INTEGRATOR
2119 tristate "CPUfreq driver for ARM Integrator CPUs"
2120 depends on ARCH_INTEGRATOR && CPU_FREQ
2121 default y
2122 help
2123 This enables the CPUfreq driver for ARM Integrator CPUs.
2124
2125 For details, take a look at <file:Documentation/cpu-freq>.
2126
2127 If in doubt, say Y.
2128
Russell King9e2697f2007-12-14 13:30:14 +00002129config CPU_FREQ_PXA
2130 bool
2131 depends on CPU_FREQ && ARCH_PXA && PXA25x
2132 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002133 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002134 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2135
Ben Dooks9d56c022009-07-30 23:23:25 +01002136config CPU_FREQ_S3C
2137 bool
2138 help
2139 Internal configuration node for common cpufreq on Samsung SoC
2140
2141config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002142 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002143 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002144 select CPU_FREQ_S3C
2145 help
2146 This enables the CPUfreq driver for the Samsung S3C24XX family
2147 of CPUs.
2148
2149 For details, take a look at <file:Documentation/cpu-freq>.
2150
2151 If in doubt, say N.
2152
2153config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002154 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002155 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2156 help
2157 Compile in support for changing the PLL frequency from the
2158 S3C24XX series CPUfreq driver. The PLL takes time to settle
2159 after a frequency change, so by default it is not enabled.
2160
2161 This also means that the PLL tables for the selected CPU(s) will
2162 be built which may increase the size of the kernel image.
2163
2164config CPU_FREQ_S3C24XX_DEBUG
2165 bool "Debug CPUfreq Samsung driver core"
2166 depends on CPU_FREQ_S3C24XX
2167 help
2168 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2169
2170config CPU_FREQ_S3C24XX_IODEBUG
2171 bool "Debug CPUfreq Samsung driver IO timing"
2172 depends on CPU_FREQ_S3C24XX
2173 help
2174 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2175
Ben Dookse6d197a2009-07-30 23:23:42 +01002176config CPU_FREQ_S3C24XX_DEBUGFS
2177 bool "Export debugfs for CPUFreq"
2178 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2179 help
2180 Export status information via debugfs.
2181
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182endif
2183
Russell Kingac9d7ef2008-08-18 17:26:00 +01002184source "drivers/cpuidle/Kconfig"
2185
2186endmenu
2187
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188menu "Floating point emulation"
2189
2190comment "At least one emulation must be selected"
2191
2192config FPE_NWFPE
2193 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002194 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195 ---help---
2196 Say Y to include the NWFPE floating point emulator in the kernel.
2197 This is necessary to run most binaries. Linux does not currently
2198 support floating point hardware so you need to say Y here even if
2199 your machine has an FPA or floating point co-processor podule.
2200
2201 You may say N here if you are going to load the Acorn FPEmulator
2202 early in the bootup.
2203
2204config FPE_NWFPE_XP
2205 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002206 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207 help
2208 Say Y to include 80-bit support in the kernel floating-point
2209 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2210 Note that gcc does not generate 80-bit operations by default,
2211 so in most cases this option only enlarges the size of the
2212 floating point emulator without any good reason.
2213
2214 You almost surely want to say N here.
2215
2216config FPE_FASTFPE
2217 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002218 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219 ---help---
2220 Say Y here to include the FAST floating point emulator in the kernel.
2221 This is an experimental much faster emulator which now also has full
2222 precision for the mantissa. It does not support any exceptions.
2223 It is very simple, and approximately 3-6 times faster than NWFPE.
2224
2225 It should be sufficient for most programs. It may be not suitable
2226 for scientific calculations, but you have to check this for yourself.
2227 If you do not feel you need a faster FP emulation you should better
2228 choose NWFPE.
2229
2230config VFP
2231 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002232 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233 help
2234 Say Y to include VFP support code in the kernel. This is needed
2235 if your hardware includes a VFP unit.
2236
2237 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2238 release notes and additional status information.
2239
2240 Say N if your target does not have VFP hardware.
2241
Catalin Marinas25ebee02007-09-25 15:22:24 +01002242config VFPv3
2243 bool
2244 depends on VFP
2245 default y if CPU_V7
2246
Catalin Marinasb5872db2008-01-10 19:16:17 +01002247config NEON
2248 bool "Advanced SIMD (NEON) Extension support"
2249 depends on VFPv3 && CPU_V7
2250 help
2251 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2252 Extension.
2253
Linus Torvalds1da177e2005-04-16 15:20:36 -07002254endmenu
2255
2256menu "Userspace binary formats"
2257
2258source "fs/Kconfig.binfmt"
2259
2260config ARTHUR
2261 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002262 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263 help
2264 Say Y here to include the kernel code necessary if you want to run
2265 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2266 experimental; if this sounds frightening, say N and sleep in peace.
2267 You can also say M here to compile this support as a module (which
2268 will be called arthur).
2269
2270endmenu
2271
2272menu "Power management options"
2273
Russell Kingeceab4a2005-11-15 11:31:41 +00002274source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002275
Johannes Bergf4cb5702007-12-08 02:14:00 +01002276config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002277 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002278 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2279 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002280 def_bool y
2281
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002282config ARM_CPU_SUSPEND
2283 def_bool PM_SLEEP
2284
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285endmenu
2286
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002287source "net/Kconfig"
2288
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002289source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290
2291source "fs/Kconfig"
2292
Linus Torvalds1da177e2005-04-16 15:20:36 -07002293source "arch/arm/Kconfig.debug"
2294
2295source "security/Kconfig"
2296
2297source "crypto/Kconfig"
2298
2299source "lib/Kconfig"