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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Mark Brown7563bbf2012-04-15 10:52:54 +01004 select ARCH_HAVE_CUSTOM_GPIO_H
David Woodhousee17c6d52008-06-17 12:19:34 +01005 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00006 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02007 select HAVE_IDE if PCI || ISA || PCMCIA
Marek Szyprowski2dc6a012012-02-10 19:55:20 +01008 select HAVE_DMA_ATTRS
Marek Szyprowskic7909502011-12-29 13:09:51 +01009 select HAVE_DMA_CONTIGUOUS if (CPU_V6 || CPU_V6K || CPU_V7)
10 select CMA if (CPU_V6 || CPU_V6K || CPU_V7)
Russell King2778f622010-07-09 16:27:52 +010011 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080012 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000013 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000014 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010015 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010016 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010018 select HAVE_ARCH_TRACEHOOK
Jon Medhurst856bc352011-06-14 13:09:39 +010019 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080020 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040021 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010022 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
23 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053024 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080025 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040026 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080027 select HAVE_KERNEL_GZIP
28 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010029 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010030 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080031 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010032 select HAVE_PERF_EVENTS
33 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010034 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000035 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010036 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010037 select HAVE_GENERIC_HARDIRQS
Stephen Boyd37e74be2012-04-16 22:53:44 +010038 select HARDIRQS_SW_RESEND
39 select GENERIC_IRQ_PROBE
Thomas Gleixner25a56622011-03-24 12:02:11 +010040 select GENERIC_IRQ_SHOW
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020041 select GENERIC_IRQ_PROBE
42 select HARDIRQS_SW_RESEND
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053043 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020044 select GENERIC_PCI_IOMAP
Sam Ravnborge47b65b2012-05-21 20:45:37 +020045 select HAVE_BPF_JIT
Thomas Gleixner84ec6d52012-04-20 13:05:50 +000046 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000047 select KTIME_SCALAR
48 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -070049 help
50 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000051 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000053 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 Europe. There is an ARM Linux project with a web page at
55 <http://www.arm.linux.org.uk/>.
56
Russell King74facff2011-06-02 11:16:22 +010057config ARM_HAS_SG_CHAIN
58 bool
59
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020060config NEED_SG_DMA_LENGTH
61 bool
62
63config ARM_DMA_USE_IOMMU
64 select NEED_SG_DMA_LENGTH
65 select ARM_HAS_SG_CHAIN
66 bool
67
Russell King1a189b92008-04-13 21:41:55 +010068config HAVE_PWM
69 bool
70
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010071config MIGHT_HAVE_PCI
72 bool
73
Ralf Baechle75e71532007-02-09 17:08:58 +000074config SYS_SUPPORTS_APM_EMULATION
75 bool
76
David Brownell0a938b92007-03-05 00:30:18 -080077config GENERIC_GPIO
78 bool
David Brownell0a938b92007-03-05 00:30:18 -080079
Linus Walleijbc581772009-09-15 17:30:37 +010080config HAVE_TCM
81 bool
82 select GENERIC_ALLOCATOR
83
Russell Kinge119bff2010-01-10 17:23:29 +000084config HAVE_PROC_CPU
85 bool
86
Al Viro5ea81762007-02-11 15:41:31 +000087config NO_IOPORT
88 bool
Al Viro5ea81762007-02-11 15:41:31 +000089
Linus Torvalds1da177e2005-04-16 15:20:36 -070090config EISA
91 bool
92 ---help---
93 The Extended Industry Standard Architecture (EISA) bus was
94 developed as an open alternative to the IBM MicroChannel bus.
95
96 The EISA bus provided some of the features of the IBM MicroChannel
97 bus while maintaining backward compatibility with cards made for
98 the older ISA bus. The EISA bus saw limited use between 1988 and
99 1995 when it was made obsolete by the PCI bus.
100
101 Say Y here if you are building a kernel for an EISA-based machine.
102
103 Otherwise, say N.
104
105config SBUS
106 bool
107
Russell Kingf16fb1e2007-04-28 09:59:37 +0100108config STACKTRACE_SUPPORT
109 bool
110 default y
111
Nicolas Pitref76e9152008-04-24 01:31:46 -0400112config HAVE_LATENCYTOP_SUPPORT
113 bool
114 depends on !SMP
115 default y
116
Russell Kingf16fb1e2007-04-28 09:59:37 +0100117config LOCKDEP_SUPPORT
118 bool
119 default y
120
Russell King7ad1bcb2006-08-27 12:07:02 +0100121config TRACE_IRQFLAGS_SUPPORT
122 bool
123 default y
124
Nick Piggin95c354f2008-01-30 13:31:20 +0100125config GENERIC_LOCKBREAK
126 bool
127 default y
128 depends on SMP && PREEMPT
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130config RWSEM_GENERIC_SPINLOCK
131 bool
132 default y
133
134config RWSEM_XCHGADD_ALGORITHM
135 bool
136
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137config ARCH_HAS_ILOG2_U32
138 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139
140config ARCH_HAS_ILOG2_U64
141 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800142
Ben Dooks89c52ed2009-07-30 23:23:24 +0100143config ARCH_HAS_CPUFREQ
144 bool
145 help
146 Internal node to signify that the ARCH has CPUFREQ support
147 and that the relevant menu configurations are displayed for
148 it.
149
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800150config GENERIC_HWEIGHT
151 bool
152 default y
153
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154config GENERIC_CALIBRATE_DELAY
155 bool
156 default y
157
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100158config ARCH_MAY_HAVE_PC_FDC
159 bool
160
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161config ZONE_DMA
162 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800164config NEED_DMA_MAP_STATE
165 def_bool y
166
Rob Herring58af4a22012-03-20 14:33:01 -0500167config ARCH_HAS_DMA_SET_COHERENT_MASK
168 bool
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config GENERIC_ISA_DMA
171 bool
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173config FIQ
174 bool
175
Rob Herring13a50452012-02-07 09:28:22 -0600176config NEED_RET_TO_USER
177 bool
178
Al Viro034d2f52005-12-19 16:27:59 -0500179config ARCH_MTD_XIP
180 bool
181
Hyok S. Choic760fc12006-03-27 15:18:50 +0100182config VECTORS_BASE
183 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900184 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100185 default DRAM_BASE if REMAP_VECTORS_TO_RAM
186 default 0x00000000
187 help
188 The base address of exception vectors.
189
Russell Kingdc21af92011-01-04 19:09:43 +0000190config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100191 bool "Patch physical to virtual translations at runtime" if EMBEDDED
192 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100193 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000194 depends on !ARCH_REALVIEW || !SPARSEMEM
195 help
Russell King111e9a52011-05-12 10:02:42 +0100196 Patch phys-to-virt and virt-to-phys translation functions at
197 boot and module load time according to the position of the
198 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000199
Russell King111e9a52011-05-12 10:02:42 +0100200 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100201 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000202
Russell Kingc1beced2011-08-10 10:23:45 +0100203 Only disable this option if you know that you do not require
204 this feature (eg, building a kernel for a single machine) and
205 you need to shrink the kernel to the minimal size.
206
Rob Herringc334bc12012-03-04 22:03:33 -0600207config NEED_MACH_IO_H
208 bool
209 help
210 Select this when mach/io.h is required to provide special
211 definitions for this platform. The need for mach/io.h should
212 be avoided when possible.
213
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400214config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400215 bool
Russell King111e9a52011-05-12 10:02:42 +0100216 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400217 Select this when mach/memory.h is required to provide special
218 definitions for this platform. The need for mach/memory.h should
219 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400220
221config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100222 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400223 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100224 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225 help
226 Please provide the physical address corresponding to the
227 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000228
Simon Glass87e040b2011-08-16 23:44:26 +0100229config GENERIC_BUG
230 def_bool y
231 depends on BUG
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233source "init/Kconfig"
234
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700235source "kernel/Kconfig.freezer"
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237menu "System Type"
238
Hyok S. Choi3c427972009-07-24 12:35:00 +0100239config MMU
240 bool "MMU-based Paged Memory Management Support"
241 default y
242 help
243 Select if you want MMU-based virtualised addressing space
244 support by paged memory management. If unsure, say 'Y'.
245
Russell Kingccf50e22010-03-15 19:03:06 +0000246#
247# The "ARM system type" choice list is ordered alphabetically by option
248# text. Please add new entries in the option alphabetic order.
249#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250choice
251 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000252 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254config ARCH_INTEGRATOR
255 bool "ARM Ltd. Integrator family"
256 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100257 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900259 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100260 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000261 select ICST
Russell King13edd862010-01-15 21:49:23 +0000262 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000263 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000264 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600265 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400266 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100267 select SPARSE_IRQ
Linus Walleij3108e6a2012-04-28 14:33:47 +0100268 select MULTI_IRQ_HANDLER
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 help
270 Support for ARM's Integrator platform.
271
272config ARCH_REALVIEW
273 bool "ARM Ltd. RealView family"
274 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100275 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900276 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000277 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100278 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100279 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000280 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000281 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000282 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100283 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400284 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285 help
286 This enables support for ARM Ltd RealView boards.
287
288config ARCH_VERSATILE
289 bool "ARM Ltd. Versatile family"
290 select ARM_AMBA
291 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100292 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900293 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000294 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100295 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100296 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000297 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000298 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000299 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000300 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 help
302 This enables support for ARM Ltd Versatile board.
303
Russell Kingceade892010-02-11 21:44:53 +0000304config ARCH_VEXPRESS
305 bool "ARM Ltd. Versatile Express family"
306 select ARCH_WANT_OPTIONAL_GPIOLIB
307 select ARM_AMBA
308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900310 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000311 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000312 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100313 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000314 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000315 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000316 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000317 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000318 help
319 This enables support for the ARM Ltd Versatile Express boards.
320
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100321config ARCH_AT91
322 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100323 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700324 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100325 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100326 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500327 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100329 This enables support for systems based on Atmel
330 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100331
Russell Kingccf50e22010-03-15 19:03:06 +0000332config ARCH_BCMRING
333 bool "Broadcom BCMRING"
334 depends on MMU
335 select CPU_V6
336 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100337 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100338 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000339 select GENERIC_CLOCKEVENTS
340 select ARCH_WANT_OPTIONAL_GPIOLIB
341 help
342 Support for Broadcom's BCMRing platform.
343
Rob Herring220e6cf2011-06-07 10:02:55 -0500344config ARCH_HIGHBANK
345 bool "Calxeda Highbank-based"
346 select ARCH_WANT_OPTIONAL_GPIOLIB
347 select ARM_AMBA
348 select ARM_GIC
349 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000350 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500351 select CLKDEV_LOOKUP
352 select CPU_V7
353 select GENERIC_CLOCKEVENTS
354 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000355 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600356 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500357 select USE_OF
358 help
359 Support for the Calxeda Highbank SoC based boards.
360
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400362 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000363 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000364 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400365 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000366 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400367 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300369config ARCH_CNS3XXX
370 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200371 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300372 select GENERIC_CLOCKEVENTS
373 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000374 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100375 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400376 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300377 help
378 Support for Cavium Networks CNS3XXX platform.
379
Russell King788c9702009-04-26 14:21:59 +0100380config ARCH_GEMINI
381 bool "Cortina Systems Gemini"
382 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100383 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000384 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100385 help
386 Support for the Cortina Systems Gemini family SoCs
387
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200388config ARCH_PRIMA2
389 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
390 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391 select NO_IOPORT
392 select GENERIC_CLOCKEVENTS
393 select CLKDEV_LOOKUP
394 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000395 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800396 select PINCTRL
397 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200398 select USE_OF
399 select ZONE_DMA
400 help
401 Support for CSR SiRFSoC ARM Cortex A9 Platform
402
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403config ARCH_EBSA110
404 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100406 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000407 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000408 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600409 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400410 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 help
412 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000413 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 Ethernet interface, two PCMCIA sockets, two serial ports and a
415 parallel port.
416
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000417config ARCH_EP93XX
418 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000419 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000420 select ARM_AMBA
421 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100422 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700423 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100424 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000425 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100426 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000427 help
428 This enables support for the Cirrus EP93xx series of CPUs.
429
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430config ARCH_FOOTBRIDGE
431 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000432 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000434 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200435 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600436 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400437 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000438 help
439 Support for systems based on the DC21285 companion chip
440 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
Russell King788c9702009-04-26 14:21:59 +0100442config ARCH_MXC
443 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100444 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100445 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100446 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100447 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800448 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200449 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100450 help
451 Support for Freescale MXC/iMX-based family of processors
452
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800453config ARCH_MXS
454 bool "Freescale MXS-based"
455 select GENERIC_CLOCKEVENTS
456 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100457 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100458 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800459 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800460 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800461 select PINCTRL
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800462 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800463 help
464 Support for Freescale MXS-based family of processors
465
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100466config ARCH_NETX
467 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100468 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100471 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000472 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 This enables support for systems based on the Hilscher NetX Soc
474
475config ARCH_H720X
476 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000477 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100478 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000479 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100480 help
481 This enables support for systems based on the Hynix HMS720x
482
Russell King3b938be2007-05-12 11:25:44 +0100483config ARCH_IOP13XX
484 bool "IOP13xx-based"
485 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000486 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100487 select PLAT_IOP
488 select PCI
489 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100490 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600491 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400492 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600493 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100494 help
495 Support for Intel's IOP13XX (XScale) family of processors.
496
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100497config ARCH_IOP32X
498 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100499 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600501 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600502 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100503 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100504 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100505 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000506 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100507 Support for Intel's 80219 and IOP32X (XScale) family of
508 processors.
509
510config ARCH_IOP33X
511 bool "IOP33x-based"
512 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000513 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600514 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600515 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100516 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100517 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100518 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100519 help
520 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Russell King3b938be2007-05-12 11:25:44 +0100522config ARCH_IXP4XX
523 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100524 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500525 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100526 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000527 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200528 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100529 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100530 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600531 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100532 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100533 help
Russell King3b938be2007-05-12 11:25:44 +0100534 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100535
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536config ARCH_DOVE
537 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300538 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300540 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300541 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600542 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300543 select PLAT_ORION
544 help
545 Support for the Marvell Dove SoC 88AP510
546
Saeed Bishara651c74c2008-06-22 22:45:06 +0200547config ARCH_KIRKWOOD
548 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000549 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200550 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700551 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200552 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600553 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554 select PLAT_ORION
555 help
556 Support for the following Marvell Kirkwood series SoCs:
557 88F6180, 88F6192 and 88F6281.
558
Kevin Wells40805942010-07-27 08:49:04 -0700559config ARCH_LPC32XX
560 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100561 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700562 select CPU_ARM926T
563 select ARCH_REQUIRE_GPIOLIB
564 select HAVE_IDE
565 select ARM_AMBA
566 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100567 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700568 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200569 select USE_OF
Kevin Wells40805942010-07-27 08:49:04 -0700570 help
571 Support for the NXP LPC32XX family of processors
572
Russell King788c9702009-04-26 14:21:59 +0100573config ARCH_MV78XX0
574 bool "Marvell MV78xx0"
575 select CPU_FEROCEON
576 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700577 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100578 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600579 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100580 select PLAT_ORION
581 help
582 Support for the following Marvell MV78xx0 series SoCs:
583 MV781x0, MV782x0.
584
585config ARCH_ORION5X
586 bool "Marvell Orion"
587 depends on MMU
588 select CPU_FEROCEON
589 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700590 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100591 select GENERIC_CLOCKEVENTS
592 select PLAT_ORION
593 help
594 Support for the following Marvell Orion 5x series SoCs:
595 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
596 Orion-2 (5281), Orion-1-90 (6183).
597
598config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500599 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100600 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100601 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100603 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800604 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800605 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100606 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400607 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800608 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100609 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500610 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100611
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100612config ARCH_KS8695
613 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000614 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100615 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000616 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400617 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100618 help
619 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
620 System-on-Chip devices.
621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_W90X900
623 bool "Nuvoton W90X900 CPU"
624 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100625 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100627 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100628 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200629 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100630 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
631 At present, the w90x900 has been renamed nuc900, regarding
632 the ARM series product line, you can login the following
633 link address to know more.
634
635 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
636 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400637
Erik Gillingc5f80062010-01-21 16:53:02 -0800638config ARCH_TEGRA
639 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000640 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100641 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 select GENERIC_CLOCKEVENTS
643 select GENERIC_GPIO
644 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000645 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000646 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600647 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700648 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800649 help
650 This enables support for NVIDIA Tegra based systems (Tegra APX,
651 Tegra 6xx and Tegra 2 series).
652
Jamie Ilesaf756552011-07-25 17:36:42 +0100653config ARCH_PICOXCELL
654 bool "Picochip picoXcell"
655 select ARCH_REQUIRE_GPIOLIB
656 select ARM_PATCH_PHYS_VIRT
657 select ARM_VIC
658 select CPU_V6K
659 select DW_APB_TIMER
660 select GENERIC_CLOCKEVENTS
661 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100662 select HAVE_TCM
663 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000664 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100665 select USE_OF
666 help
667 This enables support for systems based on the Picochip picoXcell
668 family of Femtocell devices. The picoxcell support requires device tree
669 for all boards.
670
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100671config ARCH_PNX4008
672 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000673 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100674 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000675 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100676 help
677 This enables support for Philips PNX4008 mobile platform.
678
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700680 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100681 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500682 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100683 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100684 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100685 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700686 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100687 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800688 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800689 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800690 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800691 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800692 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200693 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200694 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000695 help
eric miao2c8086a2007-09-11 19:13:17 -0700696 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697
Russell King788c9702009-04-26 14:21:59 +0100698config ARCH_MSM
699 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500700 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800701 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700702 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800703 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800704 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800705 Support for Qualcomm MSM/QSD based systems. This runs on the
706 apps processor of the MSM/QSD and depends on a shared memory
707 interface to the modem processor which runs the baseband
708 stack and controls some vital subsystems
709 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800710
Magnus Dammc793c1b2010-02-05 11:14:49 +0000711config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900712 bool "Renesas SH-Mobile / R-Mobile"
713 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900714 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900715 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000716 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900717 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000718 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900719 select NO_IOPORT
720 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000721 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200722 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400723 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000724 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900725 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000726
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727config ARCH_RPC
728 bool "RiscPC"
729 select ARCH_ACORN
730 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100731 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100732 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000733 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000734 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100735 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000736 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200737 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600738 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400739 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 help
741 On the Acorn Risc-PC, Linux can support the internal IDE disk and
742 CD-ROM interface, serial and parallel port, and the floppy drive.
743
744config ARCH_SA1100
745 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100746 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000747 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100748 select ISA
Russell King05944d72006-11-30 20:43:51 +0000749 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500750 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100751 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000752 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100753 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800754 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700755 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200756 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400757 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100758 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000759 help
760 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900762config ARCH_S3C24XX
763 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800764 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100765 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700766 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900767 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000768 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900769 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900770 select HAVE_S3C_RTC if RTC_CLASS
771 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600772 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900774 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
775 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
776 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
777 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900778
Ben Dooksa08ab632008-10-21 14:06:39 +0100779config ARCH_S3C64XX
780 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000781 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900783 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100784 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900785 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900786 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000788 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100789 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900790 select ARCH_REQUIRE_GPIOLIB
791 select SAMSUNG_CLKSRC
792 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900793 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900794 select S3C_DEV_NAND
795 select USB_ARCH_HAS_OHCI
796 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900797 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900798 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100799 help
800 Samsung S3C64XX series based systems
801
Kukjin Kim49b7a492010-09-07 15:47:18 +0900802config ARCH_S5P64X0
803 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900804 select CPU_V6
805 select GENERIC_GPIO
806 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900807 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900808 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900809 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900810 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900811 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900812 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900813 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900814 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
815 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900816
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200817config ARCH_S5PC100
818 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900819 select GENERIC_GPIO
820 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900821 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900822 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900823 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900824 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900825 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900826 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900827 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200828 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900829
Kukjin Kim170f4e42010-02-24 16:40:44 +0900830config ARCH_S5PV210
831 bool "Samsung S5PV210/S5PC110"
832 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900833 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900834 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900835 select GENERIC_GPIO
836 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900837 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900838 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900839 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900840 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900841 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900842 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900843 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400844 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900845 help
846 Samsung S5PV210/S5PC110 series based systems
847
Kukjin Kim83014572011-11-06 13:54:56 +0900848config ARCH_EXYNOS
849 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900851 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900852 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900853 select GENERIC_GPIO
854 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900855 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900856 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900857 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900858 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900859 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900860 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400861 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900862 help
Kukjin Kim83014572011-11-06 13:54:56 +0900863 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900864
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865config ARCH_SHARK
866 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000867 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100868 select ISA
869 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100870 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100871 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000872 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400873 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600874 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000875 help
876 Support for the StrongARM based Digital DNARD machine, also known
877 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878
Linus Walleijd98aac72009-04-27 10:21:46 +0100879config ARCH_U300
880 bool "ST-Ericsson U300 Series"
881 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100882 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100883 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100884 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100885 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200886 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100888 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100889 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900890 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100892 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 help
894 Support for ST-Ericsson U300 series mobile platforms.
895
Russell Kingccf50e22010-03-15 19:03:06 +0000896config ARCH_U8500
897 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700898 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000899 select CPU_V7
900 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000901 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100902 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100903 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100904 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000905 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000906 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000907 help
908 Support for ST-Ericsson's Ux500 architecture
909
910config ARCH_NOMADIK
911 bool "STMicroelectronics Nomadik"
912 select ARM_AMBA
913 select ARM_VIC
914 select CPU_ARM926T
Linus Walleij4a31bd22012-01-11 13:52:34 +0100915 select COMMON_CLK
Russell Kingccf50e22010-03-15 19:03:06 +0000916 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000917 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000918 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000919 select ARCH_REQUIRE_GPIOLIB
920 help
921 Support for the Nomadik platform by ST-Ericsson
922
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100923config ARCH_DAVINCI
924 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100925 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700926 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100927 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700928 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100929 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700930 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100931 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530932 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100933 help
934 Support for TI's DaVinci platform.
935
Russell King3b938be2007-05-12 11:25:44 +0100936config ARCH_OMAP
937 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700938 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700939 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100940 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700941 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700942 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800943 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100944 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200945 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100946
viresh kumarcee37e52010-04-01 12:31:05 +0100947config PLAT_SPEAR
948 bool "ST SPEAr"
949 select ARM_AMBA
950 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100951 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530952 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100953 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100954 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100955 select HAVE_CLK
956 help
957 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
958
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100959config ARCH_VT8500
960 bool "VIA/WonderMedia 85xx"
961 select CPU_ARM926T
962 select GENERIC_GPIO
963 select ARCH_HAS_CPUFREQ
964 select GENERIC_CLOCKEVENTS
965 select ARCH_REQUIRE_GPIOLIB
966 select HAVE_PWM
967 help
968 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800969
John Linnb85a3ef2011-06-20 11:47:27 -0600970config ARCH_ZYNQ
971 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800972 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800973 select GENERIC_CLOCKEVENTS
974 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600975 select ARM_GIC
976 select ARM_AMBA
977 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000978 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800979 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800980 help
John Linnb85a3ef2011-06-20 11:47:27 -0600981 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982endchoice
983
Russell Kingccf50e22010-03-15 19:03:06 +0000984#
985# This is sorted alphabetically by mach-* pathname. However, plat-*
986# Kconfigs may be included either alphabetically (according to the
987# plat- suffix) or along side the corresponding mach-* source.
988#
Russell King95b8f202010-01-14 11:43:54 +0000989source "arch/arm/mach-at91/Kconfig"
990
991source "arch/arm/mach-bcmring/Kconfig"
992
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993source "arch/arm/mach-clps711x/Kconfig"
994
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300995source "arch/arm/mach-cns3xxx/Kconfig"
996
Russell King95b8f202010-01-14 11:43:54 +0000997source "arch/arm/mach-davinci/Kconfig"
998
999source "arch/arm/mach-dove/Kconfig"
1000
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001001source "arch/arm/mach-ep93xx/Kconfig"
1002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003source "arch/arm/mach-footbridge/Kconfig"
1004
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001005source "arch/arm/mach-gemini/Kconfig"
1006
Russell King95b8f202010-01-14 11:43:54 +00001007source "arch/arm/mach-h720x/Kconfig"
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009source "arch/arm/mach-integrator/Kconfig"
1010
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001011source "arch/arm/mach-iop32x/Kconfig"
1012
1013source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014
Dan Williams285f5fa2006-12-07 02:59:39 +01001015source "arch/arm/mach-iop13xx/Kconfig"
1016
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017source "arch/arm/mach-ixp4xx/Kconfig"
1018
Russell King95b8f202010-01-14 11:43:54 +00001019source "arch/arm/mach-kirkwood/Kconfig"
1020
1021source "arch/arm/mach-ks8695/Kconfig"
1022
Kevin Wells40805942010-07-27 08:49:04 -07001023source "arch/arm/mach-lpc32xx/Kconfig"
1024
Russell King95b8f202010-01-14 11:43:54 +00001025source "arch/arm/mach-msm/Kconfig"
1026
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001027source "arch/arm/mach-mv78xx0/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001031source "arch/arm/mach-mxs/Kconfig"
1032
Russell King95b8f202010-01-14 11:43:54 +00001033source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-nomadik/Kconfig"
1036source "arch/arm/plat-nomadik/Kconfig"
1037
Tony Lindgrend48af152005-07-10 19:58:17 +01001038source "arch/arm/plat-omap/Kconfig"
1039
1040source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
Tony Lindgren1dbae812005-11-10 14:26:51 +00001042source "arch/arm/mach-omap2/Kconfig"
1043
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001044source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001045
Russell King95b8f202010-01-14 11:43:54 +00001046source "arch/arm/mach-pxa/Kconfig"
1047source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048
Russell King95b8f202010-01-14 11:43:54 +00001049source "arch/arm/mach-mmp/Kconfig"
1050
1051source "arch/arm/mach-realview/Kconfig"
1052
1053source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001054
Ben Dookscf383672009-11-10 00:14:58 +00001055source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001056source "arch/arm/plat-s3c24xx/Kconfig"
1057
viresh kumarcee37e52010-04-01 12:31:05 +01001058source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001059
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001060source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001061if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001062source "arch/arm/mach-s3c2412/Kconfig"
1063source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001064endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
Ben Dooksa08ab632008-10-21 14:06:39 +01001066if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001067source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001068endif
1069
Kukjin Kim49b7a492010-09-07 15:47:18 +09001070source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001071
Byungho Min5a7652f2009-06-23 21:39:42 +09001072source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001073
Kukjin Kim170f4e42010-02-24 16:40:44 +09001074source "arch/arm/mach-s5pv210/Kconfig"
1075
Kukjin Kim83014572011-11-06 13:54:56 +09001076source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001077
Russell King882d01f2010-03-02 23:40:15 +00001078source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Erik Gillingc5f80062010-01-21 16:53:02 -08001080source "arch/arm/mach-tegra/Kconfig"
1081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
1086source "arch/arm/mach-versatile/Kconfig"
1087
Russell Kingceade892010-02-11 21:44:53 +00001088source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001089source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001090
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001091source "arch/arm/mach-vt8500/Kconfig"
1092
wanzongshun7ec80dd2008-12-03 03:55:38 +01001093source "arch/arm/mach-w90x900/Kconfig"
1094
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095# Definitions to make life easier
1096config ARCH_ACORN
1097 bool
1098
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +01001099config PLAT_IOP
1100 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001101 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +01001102
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001103config PLAT_ORION
1104 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001105 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001106 select GENERIC_IRQ_CHIP
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001107 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001108
Eric Miaobd5ce432009-01-20 12:06:01 +08001109config PLAT_PXA
1110 bool
1111
Russell Kingf4b8b312010-01-14 12:48:06 +00001112config PLAT_VERSATILE
1113 bool
1114
Russell Kinge3887712010-01-14 13:30:16 +00001115config ARM_TIMER_SP804
1116 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001117 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001118 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001119
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120source arch/arm/mm/Kconfig
1121
Russell King958cab02011-12-11 10:04:00 +00001122config ARM_NR_BANKS
1123 int
1124 default 16 if ARCH_EP93XX
1125 default 8
1126
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001127config IWMMXT
1128 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001129 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1130 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001131 help
1132 Enable support for iWMMXt context switching at run time if
1133 running on a CPU that supports it.
1134
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135config XSCALE_PMU
1136 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001137 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138 default y
1139
Jamie Iles0f4f0672010-02-02 20:23:15 +01001140config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001141 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001142 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001143 default y
1144 bool
1145
eric miao52108642010-12-13 09:42:34 +01001146config MULTI_IRQ_HANDLER
1147 bool
1148 help
1149 Allow each machine to specify it's own IRQ handler at run time.
1150
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001151if !MMU
1152source "arch/arm/Kconfig-nommu"
1153endif
1154
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001155config ARM_ERRATA_326103
1156 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1157 depends on CPU_V6
1158 help
1159 Executing a SWP instruction to read-only memory does not set bit 11
1160 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1161 treat the access as a read, preventing a COW from occurring and
1162 causing the faulting task to livelock.
1163
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001164config ARM_ERRATA_411920
1165 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001166 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001167 help
1168 Invalidation of the Instruction Cache operation can
1169 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1170 It does not affect the MPCore. This option enables the ARM Ltd.
1171 recommended workaround.
1172
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001173config ARM_ERRATA_430973
1174 bool "ARM errata: Stale prediction on replaced interworking branch"
1175 depends on CPU_V7
1176 help
1177 This option enables the workaround for the 430973 Cortex-A8
1178 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1179 interworking branch is replaced with another code sequence at the
1180 same virtual address, whether due to self-modifying code or virtual
1181 to physical address re-mapping, Cortex-A8 does not recover from the
1182 stale interworking branch prediction. This results in Cortex-A8
1183 executing the new code sequence in the incorrect ARM or Thumb state.
1184 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1185 and also flushes the branch target cache at every context switch.
1186 Note that setting specific bits in the ACTLR register may not be
1187 available in non-secure mode.
1188
Catalin Marinas855c5512009-04-30 17:06:15 +01001189config ARM_ERRATA_458693
1190 bool "ARM errata: Processor deadlock when a false hazard is created"
1191 depends on CPU_V7
1192 help
1193 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1194 erratum. For very specific sequences of memory operations, it is
1195 possible for a hazard condition intended for a cache line to instead
1196 be incorrectly associated with a different cache line. This false
1197 hazard might then cause a processor deadlock. The workaround enables
1198 the L1 caching of the NEON accesses and disables the PLD instruction
1199 in the ACTLR register. Note that setting specific bits in the ACTLR
1200 register may not be available in non-secure mode.
1201
Catalin Marinas0516e462009-04-30 17:06:20 +01001202config ARM_ERRATA_460075
1203 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1204 depends on CPU_V7
1205 help
1206 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1207 erratum. Any asynchronous access to the L2 cache may encounter a
1208 situation in which recent store transactions to the L2 cache are lost
1209 and overwritten with stale memory contents from external memory. The
1210 workaround disables the write-allocate mode for the L2 cache via the
1211 ACTLR register. Note that setting specific bits in the ACTLR register
1212 may not be available in non-secure mode.
1213
Will Deacon9f050272010-09-14 09:51:43 +01001214config ARM_ERRATA_742230
1215 bool "ARM errata: DMB operation may be faulty"
1216 depends on CPU_V7 && SMP
1217 help
1218 This option enables the workaround for the 742230 Cortex-A9
1219 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1220 between two write operations may not ensure the correct visibility
1221 ordering of the two writes. This workaround sets a specific bit in
1222 the diagnostic register of the Cortex-A9 which causes the DMB
1223 instruction to behave as a DSB, ensuring the correct behaviour of
1224 the two writes.
1225
Will Deacona672e992010-09-14 09:53:02 +01001226config ARM_ERRATA_742231
1227 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1228 depends on CPU_V7 && SMP
1229 help
1230 This option enables the workaround for the 742231 Cortex-A9
1231 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1232 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1233 accessing some data located in the same cache line, may get corrupted
1234 data due to bad handling of the address hazard when the line gets
1235 replaced from one of the CPUs at the same time as another CPU is
1236 accessing it. This workaround sets specific bits in the diagnostic
1237 register of the Cortex-A9 which reduces the linefill issuing
1238 capabilities of the processor.
1239
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001240config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001241 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001242 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001243 help
1244 The PL310 L2 cache controller implements three types of Clean &
1245 Invalidate maintenance operations: by Physical Address
1246 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1247 They are architecturally defined to behave as the execution of a
1248 clean operation followed immediately by an invalidate operation,
1249 both performing to the same memory location. This functionality
1250 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001251 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001252
1253config ARM_ERRATA_720789
1254 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001255 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001256 help
1257 This option enables the workaround for the 720789 Cortex-A9 (prior to
1258 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1259 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1260 As a consequence of this erratum, some TLB entries which should be
1261 invalidated are not, resulting in an incoherency in the system page
1262 tables. The workaround changes the TLB flushing routines to invalidate
1263 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001264
Russell King1f0090a2011-03-16 23:35:25 +00001265config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001266 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001267 depends on CACHE_L2X0
1268 help
1269 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1270 operation (offset 0x7FC). This operation runs in background so that
1271 PL310 can handle normal accesses while it is in progress. Under very
1272 rare circumstances, due to this erratum, write data can be lost when
1273 PL310 treats a cacheable write transaction during a Clean &
1274 Invalidate by Way operation.
1275
Will Deacon475d92f2010-09-28 14:02:02 +01001276config ARM_ERRATA_743622
1277 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1278 depends on CPU_V7
1279 help
1280 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001281 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001282 optimisation in the Cortex-A9 Store Buffer may lead to data
1283 corruption. This workaround sets a specific bit in the diagnostic
1284 register of the Cortex-A9 which disables the Store Buffer
1285 optimisation, preventing the defect from occurring. This has no
1286 visible impact on the overall performance or power consumption of the
1287 processor.
1288
Will Deacon9a27c272011-02-18 16:36:35 +01001289config ARM_ERRATA_751472
1290 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001291 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001292 help
1293 This option enables the workaround for the 751472 Cortex-A9 (prior
1294 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1295 completion of a following broadcasted operation if the second
1296 operation is received by a CPU before the ICIALLUIS has completed,
1297 potentially leading to corrupted entries in the cache or TLB.
1298
Will Deaconfa0ce402011-11-14 17:24:57 +01001299config PL310_ERRATA_753970
1300 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001301 depends on CACHE_PL310
1302 help
1303 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1304
1305 Under some condition the effect of cache sync operation on
1306 the store buffer still remains when the operation completes.
1307 This means that the store buffer is always asked to drain and
1308 this prevents it from merging any further writes. The workaround
1309 is to replace the normal offset of cache sync operation (0x730)
1310 by another offset targeting an unmapped PL310 register 0x740.
1311 This has the same effect as the cache sync operation: store buffer
1312 drain and waiting for all buffers empty.
1313
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001314config ARM_ERRATA_754322
1315 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1316 depends on CPU_V7
1317 help
1318 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1319 r3p*) erratum. A speculative memory access may cause a page table walk
1320 which starts prior to an ASID switch but completes afterwards. This
1321 can populate the micro-TLB with a stale entry which may be hit with
1322 the new ASID. This workaround places two dsb instructions in the mm
1323 switching code so that no page table walks can cross the ASID switch.
1324
Will Deacon5dab26a2011-03-04 12:38:54 +01001325config ARM_ERRATA_754327
1326 bool "ARM errata: no automatic Store Buffer drain"
1327 depends on CPU_V7 && SMP
1328 help
1329 This option enables the workaround for the 754327 Cortex-A9 (prior to
1330 r2p0) erratum. The Store Buffer does not have any automatic draining
1331 mechanism and therefore a livelock may occur if an external agent
1332 continuously polls a memory location waiting to observe an update.
1333 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1334 written polling loops from denying visibility of updates to memory.
1335
Catalin Marinas145e10e2011-08-15 11:04:41 +01001336config ARM_ERRATA_364296
1337 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1338 depends on CPU_V6 && !SMP
1339 help
1340 This options enables the workaround for the 364296 ARM1136
1341 r0p2 erratum (possible cache data corruption with
1342 hit-under-miss enabled). It sets the undocumented bit 31 in
1343 the auxiliary control register and the FI bit in the control
1344 register, thus disabling hit-under-miss without putting the
1345 processor into full low interrupt latency mode. ARM11MPCore
1346 is not affected.
1347
Will Deaconf630c1b2011-09-15 11:45:15 +01001348config ARM_ERRATA_764369
1349 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1350 depends on CPU_V7 && SMP
1351 help
1352 This option enables the workaround for erratum 764369
1353 affecting Cortex-A9 MPCore with two or more processors (all
1354 current revisions). Under certain timing circumstances, a data
1355 cache line maintenance operation by MVA targeting an Inner
1356 Shareable memory region may fail to proceed up to either the
1357 Point of Coherency or to the Point of Unification of the
1358 system. This workaround adds a DSB instruction before the
1359 relevant cache maintenance functions and sets a specific bit
1360 in the diagnostic control register of the SCU.
1361
Will Deacon11ed0ba2011-11-14 17:24:58 +01001362config PL310_ERRATA_769419
1363 bool "PL310 errata: no automatic Store Buffer drain"
1364 depends on CACHE_L2X0
1365 help
1366 On revisions of the PL310 prior to r3p2, the Store Buffer does
1367 not automatically drain. This can cause normal, non-cacheable
1368 writes to be retained when the memory system is idle, leading
1369 to suboptimal I/O performance for drivers using coherent DMA.
1370 This option adds a write barrier to the cpu_idle loop so that,
1371 on systems with an outer cache, the store buffer is drained
1372 explicitly.
1373
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374endmenu
1375
1376source "arch/arm/common/Kconfig"
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378menu "Bus support"
1379
1380config ARM_AMBA
1381 bool
1382
1383config ISA
1384 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385 help
1386 Find out whether you have ISA slots on your motherboard. ISA is the
1387 name of a bus system, i.e. the way the CPU talks to the other stuff
1388 inside your box. Other bus systems are PCI, EISA, MicroChannel
1389 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1390 newer boards don't support it. If you have ISA, say Y, otherwise N.
1391
Russell King065909b2006-01-04 15:44:16 +00001392# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393config ISA_DMA
1394 bool
Russell King065909b2006-01-04 15:44:16 +00001395 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396
Russell King065909b2006-01-04 15:44:16 +00001397# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001398config ISA_DMA_API
1399 bool
Al Viro5cae8412005-05-04 05:39:22 +01001400
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001402 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403 help
1404 Find out whether you have a PCI motherboard. PCI is the name of a
1405 bus system, i.e. the way the CPU talks to the other stuff inside
1406 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1407 VESA. If you have PCI, say Y, otherwise N.
1408
Anton Vorontsov52882172010-04-19 13:20:49 +01001409config PCI_DOMAINS
1410 bool
1411 depends on PCI
1412
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001413config PCI_NANOENGINE
1414 bool "BSE nanoEngine PCI support"
1415 depends on SA1100_NANOENGINE
1416 help
1417 Enable PCI on the BSE nanoEngine board.
1418
Matthew Wilcox36e23592007-07-10 10:54:40 -06001419config PCI_SYSCALL
1420 def_bool PCI
1421
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422# Select the host bridge type
1423config PCI_HOST_VIA82C505
1424 bool
1425 depends on PCI && ARCH_SHARK
1426 default y
1427
Mike Rapoporta0113a92007-11-25 08:55:34 +01001428config PCI_HOST_ITE8152
1429 bool
1430 depends on PCI && MACH_ARMCORE
1431 default y
1432 select DMABOUNCE
1433
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434source "drivers/pci/Kconfig"
1435
1436source "drivers/pcmcia/Kconfig"
1437
1438endmenu
1439
1440menu "Kernel Features"
1441
Dave Martin3b556582011-12-07 15:38:04 +00001442config HAVE_SMP
1443 bool
1444 help
1445 This option should be selected by machines which have an SMP-
1446 capable CPU.
1447
1448 The only effect of this option is to make the SMP-related
1449 options available to the user for configuration.
1450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001452 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001453 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001454 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001455 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001456 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001457 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001458 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459 help
1460 This enables support for systems with more than one CPU. If you have
1461 a system with only one CPU, like most personal computers, say N. If
1462 you have a system with more than one CPU, say Y.
1463
1464 If you say N here, the kernel will run on single and multiprocessor
1465 machines, but will use only one CPU of a multiprocessor machine. If
1466 you say Y here, the kernel will run on many, but not all, single
1467 processor machines. On a single processor machine, the kernel will
1468 run faster if you say N here.
1469
Paul Bolle395cf962011-08-15 02:02:26 +02001470 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001472 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473
1474 If you don't know what to do here, say N.
1475
Russell Kingf00ec482010-09-04 10:47:48 +01001476config SMP_ON_UP
1477 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1478 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001479 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001480 default y
1481 help
1482 SMP kernels contain instructions which fail on non-SMP processors.
1483 Enabling this option allows the kernel to modify itself to make
1484 these instructions safe. Disabling it allows about 1K of space
1485 savings.
1486
1487 If you don't know what to do here, say Y.
1488
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001489config ARM_CPU_TOPOLOGY
1490 bool "Support cpu topology definition"
1491 depends on SMP && CPU_V7
1492 default y
1493 help
1494 Support ARM cpu topology definition. The MPIDR register defines
1495 affinity between processors which is then used to describe the cpu
1496 topology of an ARM System.
1497
1498config SCHED_MC
1499 bool "Multi-core scheduler support"
1500 depends on ARM_CPU_TOPOLOGY
1501 help
1502 Multi-core scheduler support improves the CPU scheduler's decision
1503 making when dealing with multi-core CPU chips at a cost of slightly
1504 increased overhead in some places. If unsure say N here.
1505
1506config SCHED_SMT
1507 bool "SMT scheduler support"
1508 depends on ARM_CPU_TOPOLOGY
1509 help
1510 Improves the CPU scheduler's decision making when dealing with
1511 MultiThreading at a cost of slightly increased overhead in some
1512 places. If unsure say N here.
1513
Russell Kinga8cbcd92009-05-16 11:51:14 +01001514config HAVE_ARM_SCU
1515 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001516 help
1517 This option enables support for the ARM system coherency unit
1518
Marc Zyngier022c03a2012-01-11 17:25:17 +00001519config ARM_ARCH_TIMER
1520 bool "Architected timer support"
1521 depends on CPU_V7
1522 help
1523 This option enables support for the ARM architected timer
1524
Russell Kingf32f4ce2009-05-16 12:14:21 +01001525config HAVE_ARM_TWD
1526 bool
1527 depends on SMP
1528 help
1529 This options enables support for the ARM timer and watchdog unit
1530
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001531choice
1532 prompt "Memory split"
1533 default VMSPLIT_3G
1534 help
1535 Select the desired split between kernel and user memory.
1536
1537 If you are not absolutely sure what you are doing, leave this
1538 option alone!
1539
1540 config VMSPLIT_3G
1541 bool "3G/1G user/kernel split"
1542 config VMSPLIT_2G
1543 bool "2G/2G user/kernel split"
1544 config VMSPLIT_1G
1545 bool "1G/3G user/kernel split"
1546endchoice
1547
1548config PAGE_OFFSET
1549 hex
1550 default 0x40000000 if VMSPLIT_1G
1551 default 0x80000000 if VMSPLIT_2G
1552 default 0xC0000000
1553
Linus Torvalds1da177e2005-04-16 15:20:36 -07001554config NR_CPUS
1555 int "Maximum number of CPUs (2-32)"
1556 range 2 32
1557 depends on SMP
1558 default "4"
1559
Russell Kinga054a812005-11-02 22:24:33 +00001560config HOTPLUG_CPU
1561 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1562 depends on SMP && HOTPLUG && EXPERIMENTAL
1563 help
1564 Say Y here to experiment with turning CPUs off and on. CPUs
1565 can be controlled through /sys/devices/system/cpu.
1566
Russell King37ee16a2005-11-08 19:08:05 +00001567config LOCAL_TIMERS
1568 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001569 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001570 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001571 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001572 help
1573 Enable support for local timers on SMP platforms, rather then the
1574 legacy IPI broadcast method. Local timers allows the system
1575 accounting to be spread across the timer interval, preventing a
1576 "thundering herd" at every timer tick.
1577
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001578config ARCH_NR_GPIO
1579 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001580 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001581 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001582 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001583 default 0
1584 help
1585 Maximum number of GPIOs in the system.
1586
1587 If unsure, leave the default value.
1588
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001589source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590
Russell Kingf8065812006-03-02 22:41:59 +00001591config HZ
1592 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001593 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001594 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001595 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001596 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001597 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001598 default 100
1599
Catalin Marinas16c79652009-07-24 12:33:02 +01001600config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001601 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001602 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001603 select AEABI
1604 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001605 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001606 help
1607 By enabling this option, the kernel will be compiled in
1608 Thumb-2 mode. A compiler/assembler that understand the unified
1609 ARM-Thumb syntax is needed.
1610
1611 If unsure, say N.
1612
Dave Martin6f685c52011-03-03 11:41:12 +01001613config THUMB2_AVOID_R_ARM_THM_JUMP11
1614 bool "Work around buggy Thumb-2 short branch relocations in gas"
1615 depends on THUMB2_KERNEL && MODULES
1616 default y
1617 help
1618 Various binutils versions can resolve Thumb-2 branches to
1619 locally-defined, preemptible global symbols as short-range "b.n"
1620 branch instructions.
1621
1622 This is a problem, because there's no guarantee the final
1623 destination of the symbol, or any candidate locations for a
1624 trampoline, are within range of the branch. For this reason, the
1625 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1626 relocation in modules at all, and it makes little sense to add
1627 support.
1628
1629 The symptom is that the kernel fails with an "unsupported
1630 relocation" error when loading some modules.
1631
1632 Until fixed tools are available, passing
1633 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1634 code which hits this problem, at the cost of a bit of extra runtime
1635 stack usage in some cases.
1636
1637 The problem is described in more detail at:
1638 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1639
1640 Only Thumb-2 kernels are affected.
1641
1642 Unless you are sure your tools don't have this problem, say Y.
1643
Catalin Marinas0becb082009-07-24 12:32:53 +01001644config ARM_ASM_UNIFIED
1645 bool
1646
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001647config AEABI
1648 bool "Use the ARM EABI to compile the kernel"
1649 help
1650 This option allows for the kernel to be compiled using the latest
1651 ARM ABI (aka EABI). This is only useful if you are using a user
1652 space environment that is also compiled with EABI.
1653
1654 Since there are major incompatibilities between the legacy ABI and
1655 EABI, especially with regard to structure member alignment, this
1656 option also changes the kernel syscall calling convention to
1657 disambiguate both ABIs and allow for backward compatibility support
1658 (selected with CONFIG_OABI_COMPAT).
1659
1660 To use this you need GCC version 4.0.0 or later.
1661
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001662config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001663 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001664 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001665 default y
1666 help
1667 This option preserves the old syscall interface along with the
1668 new (ARM EABI) one. It also provides a compatibility layer to
1669 intercept syscalls that have structure arguments which layout
1670 in memory differs between the legacy ABI and the new ARM EABI
1671 (only for non "thumb" binaries). This option adds a tiny
1672 overhead to all syscalls and produces a slightly larger kernel.
1673 If you know you'll be using only pure EABI user space then you
1674 can say N here. If this option is not selected and you attempt
1675 to execute a legacy ABI binary then the result will be
1676 UNPREDICTABLE (in fact it can be predicted that it won't work
1677 at all). If in doubt say Y.
1678
Mel Gormaneb335752009-05-13 17:34:48 +01001679config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001680 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001681
Russell King05944d72006-11-30 20:43:51 +00001682config ARCH_SPARSEMEM_ENABLE
1683 bool
1684
Russell King07a2f732008-10-01 21:39:58 +01001685config ARCH_SPARSEMEM_DEFAULT
1686 def_bool ARCH_SPARSEMEM_ENABLE
1687
Russell King05944d72006-11-30 20:43:51 +00001688config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001689 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001690
Will Deacon7b7bf492011-05-19 13:21:14 +01001691config HAVE_ARCH_PFN_VALID
1692 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1693
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001694config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001695 bool "High Memory Support"
1696 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001697 help
1698 The address space of ARM processors is only 4 Gigabytes large
1699 and it has to accommodate user address space, kernel address
1700 space as well as some memory mapped IO. That means that, if you
1701 have a large amount of physical memory and/or IO, not all of the
1702 memory can be "permanently mapped" by the kernel. The physical
1703 memory that is not permanently mapped is called "high memory".
1704
1705 Depending on the selected kernel/user memory split, minimum
1706 vmalloc space and actual amount of RAM, you may not need this
1707 option which should result in a slightly faster kernel.
1708
1709 If unsure, say n.
1710
Russell King65cec8e2009-08-17 20:02:06 +01001711config HIGHPTE
1712 bool "Allocate 2nd-level pagetables from highmem"
1713 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001714
Jamie Iles1b8873a2010-02-02 20:25:44 +01001715config HW_PERF_EVENTS
1716 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001717 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001718 default y
1719 help
1720 Enable hardware performance counter support for perf events. If
1721 disabled, perf events will use software events only.
1722
Dave Hansen3f22ab22005-06-23 00:07:43 -07001723source "mm/Kconfig"
1724
Magnus Dammc1b2d972010-07-05 10:00:11 +01001725config FORCE_MAX_ZONEORDER
1726 int "Maximum zone order" if ARCH_SHMOBILE
1727 range 11 64 if ARCH_SHMOBILE
1728 default "9" if SA1111
1729 default "11"
1730 help
1731 The kernel memory allocator divides physically contiguous memory
1732 blocks into "zones", where each zone is a power of two number of
1733 pages. This option selects the largest power of two that the kernel
1734 keeps in the memory allocator. If you need to allocate very large
1735 blocks of physically contiguous memory, then you may need to
1736 increase this value.
1737
1738 This config option is actually maximum order plus one. For example,
1739 a value of 11 means that the largest free memory block is 2^10 pages.
1740
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741config LEDS
1742 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001743 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001744 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1746 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001747 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001748 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001749 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 help
1751 If you say Y here, the LEDs on your machine will be used
1752 to provide useful information about your current system status.
1753
1754 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1755 be able to select which LEDs are active using the options below. If
1756 you are compiling a kernel for the EBSA-110 or the LART however, the
1757 red LED will simply flash regularly to indicate that the system is
1758 still functional. It is safe to say Y here if you have a CATS
1759 system, but the driver will do nothing.
1760
1761config LEDS_TIMER
1762 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001763 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1764 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001766 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767 default y if ARCH_EBSA110
1768 help
1769 If you say Y here, one of the system LEDs (the green one on the
1770 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1771 will flash regularly to indicate that the system is still
1772 operational. This is mainly useful to kernel hackers who are
1773 debugging unstable kernels.
1774
1775 The LART uses the same LED for both Timer LED and CPU usage LED
1776 functions. You may choose to use both, but the Timer LED function
1777 will overrule the CPU usage LED.
1778
1779config LEDS_CPU
1780 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001781 !ARCH_OMAP) \
1782 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1783 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784 depends on LEDS
1785 help
1786 If you say Y here, the red LED will be used to give a good real
1787 time indication of CPU usage, by lighting whenever the idle task
1788 is not currently executing.
1789
1790 The LART uses the same LED for both Timer LED and CPU usage LED
1791 functions. You may choose to use both, but the Timer LED function
1792 will overrule the CPU usage LED.
1793
1794config ALIGNMENT_TRAP
1795 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001796 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001798 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001800 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1802 address divisible by 4. On 32-bit ARM processors, these non-aligned
1803 fetch/store instructions will be emulated in software if you say
1804 here, which has a severe performance impact. This is necessary for
1805 correct operation of some network protocols. With an IP-only
1806 configuration it is safe to say N, otherwise say Y.
1807
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001808config UACCESS_WITH_MEMCPY
1809 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1810 depends on MMU && EXPERIMENTAL
1811 default y if CPU_FEROCEON
1812 help
1813 Implement faster copy_to_user and clear_user methods for CPU
1814 cores where a 8-word STM instruction give significantly higher
1815 memory write throughput than a sequence of individual 32bit stores.
1816
1817 A possible side effect is a slight increase in scheduling latency
1818 between threads sharing the same address space if they invoke
1819 such copy operations with large buffers.
1820
1821 However, if the CPU data cache is using a write-allocate mode,
1822 this option is unlikely to provide any performance gain.
1823
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001824config SECCOMP
1825 bool
1826 prompt "Enable seccomp to safely compute untrusted bytecode"
1827 ---help---
1828 This kernel feature is useful for number crunching applications
1829 that may need to compute untrusted bytecode during their
1830 execution. By using pipes or other transports made available to
1831 the process as file descriptors supporting the read/write
1832 syscalls, it's possible to isolate those applications in
1833 their own address space using seccomp. Once seccomp is
1834 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1835 and the task is only allowed to execute a few safe syscalls
1836 defined by each seccomp mode.
1837
Nicolas Pitrec743f382010-05-24 23:55:42 -04001838config CC_STACKPROTECTOR
1839 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001840 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001841 help
1842 This option turns on the -fstack-protector GCC feature. This
1843 feature puts, at the beginning of functions, a canary value on
1844 the stack just before the return address, and validates
1845 the value just before actually returning. Stack based buffer
1846 overflows (that need to overwrite this return address) now also
1847 overwrite the canary, which gets detected and the attack is then
1848 neutralized via a kernel panic.
1849 This feature requires gcc version 4.2 or above.
1850
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001851config DEPRECATED_PARAM_STRUCT
1852 bool "Provide old way to pass kernel parameters"
1853 help
1854 This was deprecated in 2001 and announced to live on for 5 years.
1855 Some old boot loaders still use this way.
1856
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857endmenu
1858
1859menu "Boot options"
1860
Grant Likely9eb8f672011-04-28 14:27:20 -06001861config USE_OF
1862 bool "Flattened Device Tree support"
1863 select OF
1864 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001865 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001866 help
1867 Include support for flattened device tree machine descriptions.
1868
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869# Compressed boot loader in ROM. Yes, we really want to ask about
1870# TEXT and BSS so we preserve their values in the config files.
1871config ZBOOT_ROM_TEXT
1872 hex "Compressed ROM boot loader base address"
1873 default "0"
1874 help
1875 The physical address at which the ROM-able zImage is to be
1876 placed in the target. Platforms which normally make use of
1877 ROM-able zImage formats normally set this to a suitable
1878 value in their defconfig file.
1879
1880 If ZBOOT_ROM is not enabled, this has no effect.
1881
1882config ZBOOT_ROM_BSS
1883 hex "Compressed ROM boot loader BSS address"
1884 default "0"
1885 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001886 The base address of an area of read/write memory in the target
1887 for the ROM-able zImage which must be available while the
1888 decompressor is running. It must be large enough to hold the
1889 entire decompressed kernel plus an additional 128 KiB.
1890 Platforms which normally make use of ROM-able zImage formats
1891 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001892
1893 If ZBOOT_ROM is not enabled, this has no effect.
1894
1895config ZBOOT_ROM
1896 bool "Compressed boot loader in ROM/flash"
1897 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1898 help
1899 Say Y here if you intend to execute your compressed kernel image
1900 (zImage) directly from ROM or flash. If unsure, say N.
1901
Simon Horman090ab3f2011-04-26 06:29:53 +01001902choice
1903 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1904 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1905 default ZBOOT_ROM_NONE
1906 help
1907 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001908 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001909 kernel image to an MMC or SD card and boot the kernel straight
1910 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001911 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001912 rest the kernel image to RAM.
1913
1914config ZBOOT_ROM_NONE
1915 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1916 help
1917 Do not load image from SD or MMC
1918
Simon Hormanf45b1142011-01-11 04:01:08 +01001919config ZBOOT_ROM_MMCIF
1920 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001921 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001922 Load image from MMCIF hardware block.
1923
1924config ZBOOT_ROM_SH_MOBILE_SDHI
1925 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1926 help
1927 Load image from SDHI hardware block
1928
1929endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001930
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001931config ARM_APPENDED_DTB
1932 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1933 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1934 help
1935 With this option, the boot code will look for a device tree binary
1936 (DTB) appended to zImage
1937 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1938
1939 This is meant as a backward compatibility convenience for those
1940 systems with a bootloader that can't be upgraded to accommodate
1941 the documented boot protocol using a device tree.
1942
1943 Beware that there is very little in terms of protection against
1944 this option being confused by leftover garbage in memory that might
1945 look like a DTB header after a reboot if no actual DTB is appended
1946 to zImage. Do not leave this option active in a production kernel
1947 if you don't intend to always append a DTB. Proper passing of the
1948 location into r2 of a bootloader provided DTB is always preferable
1949 to this option.
1950
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001951config ARM_ATAG_DTB_COMPAT
1952 bool "Supplement the appended DTB with traditional ATAG information"
1953 depends on ARM_APPENDED_DTB
1954 help
1955 Some old bootloaders can't be updated to a DTB capable one, yet
1956 they provide ATAGs with memory configuration, the ramdisk address,
1957 the kernel cmdline string, etc. Such information is dynamically
1958 provided by the bootloader and can't always be stored in a static
1959 DTB. To allow a device tree enabled kernel to be used with such
1960 bootloaders, this option allows zImage to extract the information
1961 from the ATAG list and store it at run time into the appended DTB.
1962
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963config CMDLINE
1964 string "Default kernel command string"
1965 default ""
1966 help
1967 On some architectures (EBSA110 and CATS), there is currently no way
1968 for the boot loader to pass arguments to the kernel. For these
1969 architectures, you should supply some command-line options at build
1970 time by entering them here. As a minimum, you should specify the
1971 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1972
Victor Boivie4394c122011-05-04 17:07:55 +01001973choice
1974 prompt "Kernel command line type" if CMDLINE != ""
1975 default CMDLINE_FROM_BOOTLOADER
1976
1977config CMDLINE_FROM_BOOTLOADER
1978 bool "Use bootloader kernel arguments if available"
1979 help
1980 Uses the command-line options passed by the boot loader. If
1981 the boot loader doesn't provide any, the default kernel command
1982 string provided in CMDLINE will be used.
1983
1984config CMDLINE_EXTEND
1985 bool "Extend bootloader kernel arguments"
1986 help
1987 The command-line arguments provided by the boot loader will be
1988 appended to the default kernel command string.
1989
Alexander Holler92d20402010-02-16 19:04:53 +01001990config CMDLINE_FORCE
1991 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001992 help
1993 Always use the default kernel command string, even if the boot
1994 loader passes other arguments to the kernel.
1995 This is useful if you cannot or don't want to change the
1996 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001997endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001998
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999config XIP_KERNEL
2000 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002001 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002 help
2003 Execute-In-Place allows the kernel to run from non-volatile storage
2004 directly addressable by the CPU, such as NOR flash. This saves RAM
2005 space since the text section of the kernel is not loaded from flash
2006 to RAM. Read-write sections, such as the data section and stack,
2007 are still copied to RAM. The XIP kernel is not compressed since
2008 it has to run directly from flash, so it will take more space to
2009 store it. The flash address used to link the kernel object files,
2010 and for storing it, is configuration dependent. Therefore, if you
2011 say Y here, you must know the proper physical address where to
2012 store the kernel image depending on your own flash memory usage.
2013
2014 Also note that the make target becomes "make xipImage" rather than
2015 "make zImage" or "make Image". The final kernel binary to put in
2016 ROM memory will be arch/arm/boot/xipImage.
2017
2018 If unsure, say N.
2019
2020config XIP_PHYS_ADDR
2021 hex "XIP Kernel Physical Location"
2022 depends on XIP_KERNEL
2023 default "0x00080000"
2024 help
2025 This is the physical address in your flash memory the kernel will
2026 be linked for and stored to. This address is dependent on your
2027 own flash usage.
2028
Richard Purdiec587e4a2007-02-06 21:29:00 +01002029config KEXEC
2030 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002031 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002032 help
2033 kexec is a system call that implements the ability to shutdown your
2034 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002035 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002036 you can start any kernel with it, not just Linux.
2037
2038 It is an ongoing process to be certain the hardware in a machine
2039 is properly shutdown, so do not be surprised if this code does not
2040 initially work for you. It may help to enable device hotplugging
2041 support.
2042
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002043config ATAGS_PROC
2044 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002045 depends on KEXEC
2046 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002047 help
2048 Should the atags used to boot the kernel be exported in an "atags"
2049 file in procfs. Useful with kexec.
2050
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002051config CRASH_DUMP
2052 bool "Build kdump crash kernel (EXPERIMENTAL)"
2053 depends on EXPERIMENTAL
2054 help
2055 Generate crash dump after being started by kexec. This should
2056 be normally only set in special crash dump kernels which are
2057 loaded in the main kernel with kexec-tools into a specially
2058 reserved region and then later executed after a crash by
2059 kdump/kexec. The crash dump kernel must be compiled to a
2060 memory address not used by the main kernel
2061
2062 For more details see Documentation/kdump/kdump.txt
2063
Eric Miaoe69edc792010-07-05 15:56:50 +02002064config AUTO_ZRELADDR
2065 bool "Auto calculation of the decompressed kernel image address"
2066 depends on !ZBOOT_ROM && !ARCH_U300
2067 help
2068 ZRELADDR is the physical address where the decompressed kernel
2069 image will be placed. If AUTO_ZRELADDR is selected, the address
2070 will be determined at run-time by masking the current IP with
2071 0xf8000000. This assumes the zImage being placed in the first 128MB
2072 from start of memory.
2073
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074endmenu
2075
Russell Kingac9d7ef2008-08-18 17:26:00 +01002076menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077
Ben Dooks89c52ed2009-07-30 23:23:24 +01002078if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079
2080source "drivers/cpufreq/Kconfig"
2081
Yong Shen64f102b2010-10-21 21:18:59 +08002082config CPU_FREQ_IMX
2083 tristate "CPUfreq driver for i.MX CPUs"
2084 depends on ARCH_MXC && CPU_FREQ
2085 help
2086 This enables the CPUfreq driver for i.MX CPUs.
2087
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088config CPU_FREQ_SA1100
2089 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090
2091config CPU_FREQ_SA1110
2092 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093
2094config CPU_FREQ_INTEGRATOR
2095 tristate "CPUfreq driver for ARM Integrator CPUs"
2096 depends on ARCH_INTEGRATOR && CPU_FREQ
2097 default y
2098 help
2099 This enables the CPUfreq driver for ARM Integrator CPUs.
2100
2101 For details, take a look at <file:Documentation/cpu-freq>.
2102
2103 If in doubt, say Y.
2104
Russell King9e2697f2007-12-14 13:30:14 +00002105config CPU_FREQ_PXA
2106 bool
2107 depends on CPU_FREQ && ARCH_PXA && PXA25x
2108 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002109 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002110 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2111
Ben Dooks9d56c022009-07-30 23:23:25 +01002112config CPU_FREQ_S3C
2113 bool
2114 help
2115 Internal configuration node for common cpufreq on Samsung SoC
2116
2117config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002118 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002119 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002120 select CPU_FREQ_S3C
2121 help
2122 This enables the CPUfreq driver for the Samsung S3C24XX family
2123 of CPUs.
2124
2125 For details, take a look at <file:Documentation/cpu-freq>.
2126
2127 If in doubt, say N.
2128
2129config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002130 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002131 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2132 help
2133 Compile in support for changing the PLL frequency from the
2134 S3C24XX series CPUfreq driver. The PLL takes time to settle
2135 after a frequency change, so by default it is not enabled.
2136
2137 This also means that the PLL tables for the selected CPU(s) will
2138 be built which may increase the size of the kernel image.
2139
2140config CPU_FREQ_S3C24XX_DEBUG
2141 bool "Debug CPUfreq Samsung driver core"
2142 depends on CPU_FREQ_S3C24XX
2143 help
2144 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2145
2146config CPU_FREQ_S3C24XX_IODEBUG
2147 bool "Debug CPUfreq Samsung driver IO timing"
2148 depends on CPU_FREQ_S3C24XX
2149 help
2150 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2151
Ben Dookse6d197a2009-07-30 23:23:42 +01002152config CPU_FREQ_S3C24XX_DEBUGFS
2153 bool "Export debugfs for CPUFreq"
2154 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2155 help
2156 Export status information via debugfs.
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158endif
2159
Russell Kingac9d7ef2008-08-18 17:26:00 +01002160source "drivers/cpuidle/Kconfig"
2161
2162endmenu
2163
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164menu "Floating point emulation"
2165
2166comment "At least one emulation must be selected"
2167
2168config FPE_NWFPE
2169 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002170 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 ---help---
2172 Say Y to include the NWFPE floating point emulator in the kernel.
2173 This is necessary to run most binaries. Linux does not currently
2174 support floating point hardware so you need to say Y here even if
2175 your machine has an FPA or floating point co-processor podule.
2176
2177 You may say N here if you are going to load the Acorn FPEmulator
2178 early in the bootup.
2179
2180config FPE_NWFPE_XP
2181 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002182 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 help
2184 Say Y to include 80-bit support in the kernel floating-point
2185 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2186 Note that gcc does not generate 80-bit operations by default,
2187 so in most cases this option only enlarges the size of the
2188 floating point emulator without any good reason.
2189
2190 You almost surely want to say N here.
2191
2192config FPE_FASTFPE
2193 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002194 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195 ---help---
2196 Say Y here to include the FAST floating point emulator in the kernel.
2197 This is an experimental much faster emulator which now also has full
2198 precision for the mantissa. It does not support any exceptions.
2199 It is very simple, and approximately 3-6 times faster than NWFPE.
2200
2201 It should be sufficient for most programs. It may be not suitable
2202 for scientific calculations, but you have to check this for yourself.
2203 If you do not feel you need a faster FP emulation you should better
2204 choose NWFPE.
2205
2206config VFP
2207 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002208 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209 help
2210 Say Y to include VFP support code in the kernel. This is needed
2211 if your hardware includes a VFP unit.
2212
2213 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2214 release notes and additional status information.
2215
2216 Say N if your target does not have VFP hardware.
2217
Catalin Marinas25ebee02007-09-25 15:22:24 +01002218config VFPv3
2219 bool
2220 depends on VFP
2221 default y if CPU_V7
2222
Catalin Marinasb5872db2008-01-10 19:16:17 +01002223config NEON
2224 bool "Advanced SIMD (NEON) Extension support"
2225 depends on VFPv3 && CPU_V7
2226 help
2227 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2228 Extension.
2229
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230endmenu
2231
2232menu "Userspace binary formats"
2233
2234source "fs/Kconfig.binfmt"
2235
2236config ARTHUR
2237 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002238 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239 help
2240 Say Y here to include the kernel code necessary if you want to run
2241 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2242 experimental; if this sounds frightening, say N and sleep in peace.
2243 You can also say M here to compile this support as a module (which
2244 will be called arthur).
2245
2246endmenu
2247
2248menu "Power management options"
2249
Russell Kingeceab4a2005-11-15 11:31:41 +00002250source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251
Johannes Bergf4cb5702007-12-08 02:14:00 +01002252config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002253 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002254 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002255 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002256 def_bool y
2257
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002258config ARM_CPU_SUSPEND
2259 def_bool PM_SLEEP
2260
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261endmenu
2262
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002263source "net/Kconfig"
2264
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002265source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266
2267source "fs/Kconfig"
2268
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269source "arch/arm/Kconfig.debug"
2270
2271source "security/Kconfig"
2272
2273source "crypto/Kconfig"
2274
2275source "lib/Kconfig"