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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)
Russell King2778f622010-07-09 16:27:52 +010010 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080011 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000012 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000013 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Catalin Marinas74634492012-07-30 14:41:09 -070014 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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
Will Deaconc1d7e012012-07-30 14:42:46 -070041 select ARCH_WANT_IPC_PARSE_VERSION
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020042 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
Will Deacon8c56cc82012-07-06 15:45:39 +010049 select GENERIC_STRNCPY_FROM_USER
50 select GENERIC_STRNLEN_USER
Will Deaconb9a50f72012-07-06 15:46:08 +010051 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 help
53 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000054 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000056 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 Europe. There is an ARM Linux project with a web page at
58 <http://www.arm.linux.org.uk/>.
59
Russell King74facff2011-06-02 11:16:22 +010060config ARM_HAS_SG_CHAIN
61 bool
62
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020063config NEED_SG_DMA_LENGTH
64 bool
65
66config ARM_DMA_USE_IOMMU
67 select NEED_SG_DMA_LENGTH
68 select ARM_HAS_SG_CHAIN
69 bool
70
Russell King1a189b92008-04-13 21:41:55 +010071config HAVE_PWM
72 bool
73
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010074config MIGHT_HAVE_PCI
75 bool
76
Ralf Baechle75e71532007-02-09 17:08:58 +000077config SYS_SUPPORTS_APM_EMULATION
78 bool
79
David Brownell0a938b92007-03-05 00:30:18 -080080config GENERIC_GPIO
81 bool
David Brownell0a938b92007-03-05 00:30:18 -080082
Linus Walleijbc581772009-09-15 17:30:37 +010083config HAVE_TCM
84 bool
85 select GENERIC_ALLOCATOR
86
Russell Kinge119bff2010-01-10 17:23:29 +000087config HAVE_PROC_CPU
88 bool
89
Al Viro5ea81762007-02-11 15:41:31 +000090config NO_IOPORT
91 bool
Al Viro5ea81762007-02-11 15:41:31 +000092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093config EISA
94 bool
95 ---help---
96 The Extended Industry Standard Architecture (EISA) bus was
97 developed as an open alternative to the IBM MicroChannel bus.
98
99 The EISA bus provided some of the features of the IBM MicroChannel
100 bus while maintaining backward compatibility with cards made for
101 the older ISA bus. The EISA bus saw limited use between 1988 and
102 1995 when it was made obsolete by the PCI bus.
103
104 Say Y here if you are building a kernel for an EISA-based machine.
105
106 Otherwise, say N.
107
108config SBUS
109 bool
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128config RWSEM_GENERIC_SPINLOCK
129 bool
130 default y
131
132config RWSEM_XCHGADD_ALGORITHM
133 bool
134
David Howellsf0d1b0b2006-12-08 02:37:49 -0800135config ARCH_HAS_ILOG2_U32
136 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137
138config ARCH_HAS_ILOG2_U64
139 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800140
Ben Dooks89c52ed2009-07-30 23:23:24 +0100141config ARCH_HAS_CPUFREQ
142 bool
143 help
144 Internal node to signify that the ARCH has CPUFREQ support
145 and that the relevant menu configurations are displayed for
146 it.
147
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800148config GENERIC_HWEIGHT
149 bool
150 default y
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_CALIBRATE_DELAY
153 bool
154 default y
155
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100156config ARCH_MAY_HAVE_PC_FDC
157 bool
158
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800159config ZONE_DMA
160 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800162config NEED_DMA_MAP_STATE
163 def_bool y
164
Rob Herring58af4a22012-03-20 14:33:01 -0500165config ARCH_HAS_DMA_SET_COHERENT_MASK
166 bool
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_ISA_DMA
169 bool
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171config FIQ
172 bool
173
Rob Herring13a50452012-02-07 09:28:22 -0600174config NEED_RET_TO_USER
175 bool
176
Al Viro034d2f52005-12-19 16:27:59 -0500177config ARCH_MTD_XIP
178 bool
179
Hyok S. Choic760fc12006-03-27 15:18:50 +0100180config VECTORS_BASE
181 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900182 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100183 default DRAM_BASE if REMAP_VECTORS_TO_RAM
184 default 0x00000000
185 help
186 The base address of exception vectors.
187
Russell Kingdc21af92011-01-04 19:09:43 +0000188config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100189 bool "Patch physical to virtual translations at runtime" if EMBEDDED
190 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100191 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000192 depends on !ARCH_REALVIEW || !SPARSEMEM
193 help
Russell King111e9a52011-05-12 10:02:42 +0100194 Patch phys-to-virt and virt-to-phys translation functions at
195 boot and module load time according to the position of the
196 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000197
Russell King111e9a52011-05-12 10:02:42 +0100198 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100199 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000200
Russell Kingc1beced2011-08-10 10:23:45 +0100201 Only disable this option if you know that you do not require
202 this feature (eg, building a kernel for a single machine) and
203 you need to shrink the kernel to the minimal size.
204
Rob Herring01464222012-08-28 13:06:41 -0500205config NEED_MACH_GPIO_H
206 bool
207 help
208 Select this when mach/gpio.h is required to provide special
209 definitions for this platform. The need for mach/gpio.h should
210 be avoided when possible.
211
Rob Herringc334bc12012-03-04 22:03:33 -0600212config NEED_MACH_IO_H
213 bool
214 help
215 Select this when mach/io.h is required to provide special
216 definitions for this platform. The need for mach/io.h should
217 be avoided when possible.
218
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400219config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400220 bool
Russell King111e9a52011-05-12 10:02:42 +0100221 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400222 Select this when mach/memory.h is required to provide special
223 definitions for this platform. The need for mach/memory.h should
224 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225
226config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100227 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400228 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100229 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400230 help
231 Please provide the physical address corresponding to the
232 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000233
Simon Glass87e040b2011-08-16 23:44:26 +0100234config GENERIC_BUG
235 def_bool y
236 depends on BUG
237
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238source "init/Kconfig"
239
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700240source "kernel/Kconfig.freezer"
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242menu "System Type"
243
Hyok S. Choi3c427972009-07-24 12:35:00 +0100244config MMU
245 bool "MMU-based Paged Memory Management Support"
246 default y
247 help
248 Select if you want MMU-based virtualised addressing space
249 support by paged memory management. If unsure, say 'Y'.
250
Russell Kingccf50e22010-03-15 19:03:06 +0000251#
252# The "ARM system type" choice list is ordered alphabetically by option
253# text. Please add new entries in the option alphabetic order.
254#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255choice
256 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500257 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
Rob Herring387798b2012-09-06 13:41:12 -0500259config ARCH_MULTIPLATFORM
260 bool "Allow multiple platforms to be selected"
261 select ARM_PATCH_PHYS_VIRT
262 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600263 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500264 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600265 select SPARSE_IRQ
266 select USE_OF
Rob Herring387798b2012-09-06 13:41:12 -0500267 depends on MMU
Dinh Nguyen66314222012-07-18 16:07:18 -0600268
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269config ARCH_INTEGRATOR
270 bool "ARM Ltd. Integrator family"
271 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100272 select ARCH_HAS_CPUFREQ
Linus Walleija6131632012-06-11 17:33:12 +0200273 select COMMON_CLK
274 select CLK_VERSATILE
Linus Walleij9904f792011-12-09 10:29:23 +0100275 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000276 select ICST
Russell King13edd862010-01-15 21:49:23 +0000277 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000278 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000279 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600280 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400281 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100282 select SPARSE_IRQ
Linus Walleij3108e6a2012-04-28 14:33:47 +0100283 select MULTI_IRQ_HANDLER
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284 help
285 Support for ARM's Integrator platform.
286
287config ARCH_REALVIEW
288 bool "ARM Ltd. RealView family"
289 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100290 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900291 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000292 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100293 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100294 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000295 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100296 select PLAT_VERSATILE_CLOCK
Russell King3cb5ee42011-01-18 20:13:20 +0000297 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000298 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100299 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400300 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 help
302 This enables support for ARM Ltd RealView boards.
303
304config ARCH_VERSATILE
305 bool "ARM Ltd. Versatile family"
306 select ARM_AMBA
307 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100308 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900309 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000310 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100311 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100312 select ARCH_WANT_OPTIONAL_GPIOLIB
Arnd Bergmann9b0f7e32012-06-11 09:03:58 -0500313 select NEED_MACH_IO_H if PCI
Russell Kingf4b8b312010-01-14 12:48:06 +0000314 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100315 select PLAT_VERSATILE_CLOCK
Russell King3414ba82011-01-18 20:12:10 +0000316 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000317 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000318 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319 help
320 This enables support for ARM Ltd Versatile board.
321
Russell Kingceade892010-02-11 21:44:53 +0000322config ARCH_VEXPRESS
323 bool "ARM Ltd. Versatile Express family"
324 select ARCH_WANT_OPTIONAL_GPIOLIB
325 select ARM_AMBA
326 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100327 select CLKDEV_LOOKUP
Pawel Molld1b8a772012-07-13 11:48:16 +0100328 select COMMON_CLK
Russell Kingceade892010-02-11 21:44:53 +0000329 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000330 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100331 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000332 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000333 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000334 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000335 select PLAT_VERSATILE_CLCD
Pawel Mollb2a54ff2012-07-09 11:33:47 +0100336 select REGULATOR_FIXED_VOLTAGE if REGULATOR
Russell Kingceade892010-02-11 21:44:53 +0000337 help
338 This enables support for the ARM Ltd Versatile Express boards.
339
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100340config ARCH_AT91
341 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100342 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700343 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100344 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100345 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500346 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500347 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100348 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100349 This enables support for systems based on Atmel
350 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100351
Russell Kingccf50e22010-03-15 19:03:06 +0000352config ARCH_BCMRING
353 bool "Broadcom BCMRING"
354 depends on MMU
355 select CPU_V6
356 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100357 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100358 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000359 select GENERIC_CLOCKEVENTS
360 select ARCH_WANT_OPTIONAL_GPIOLIB
361 help
362 Support for Broadcom's BCMRing platform.
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400365 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000367 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400368 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400370 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300372config ARCH_CNS3XXX
373 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200374 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300375 select GENERIC_CLOCKEVENTS
376 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000377 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100378 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400379 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300380 help
381 Support for Cavium Networks CNS3XXX platform.
382
Russell King788c9702009-04-26 14:21:59 +0100383config ARCH_GEMINI
384 bool "Cortina Systems Gemini"
385 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100386 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000387 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100388 help
389 Support for the Cortina Systems Gemini family SoCs
390
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200391config ARCH_PRIMA2
392 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
393 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200394 select NO_IOPORT
Arnd Bergmannf6387092012-07-04 14:33:01 +0000395 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200396 select GENERIC_CLOCKEVENTS
397 select CLKDEV_LOOKUP
398 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000399 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800400 select PINCTRL
401 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200402 select USE_OF
403 select ZONE_DMA
404 help
405 Support for CSR SiRFSoC ARM Cortex A9 Platform
406
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407config ARCH_EBSA110
408 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000409 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100410 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000411 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000412 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600413 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400414 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 help
416 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000417 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 Ethernet interface, two PCMCIA sockets, two serial ports and a
419 parallel port.
420
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000421config ARCH_EP93XX
422 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000424 select ARM_AMBA
425 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100426 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700427 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100428 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000429 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100430 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000431 help
432 This enables support for the Cirrus EP93xx series of CPUs.
433
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434config ARCH_FOOTBRIDGE
435 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000438 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200439 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600440 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400441 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000442 help
443 Support for systems based on the DC21285 companion chip
444 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
Russell King788c9702009-04-26 14:21:59 +0100446config ARCH_MXC
447 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100448 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100449 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100450 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100451 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800452 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200453 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800454 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200455 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100456 help
457 Support for Freescale MXC/iMX-based family of processors
458
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800459config ARCH_MXS
460 bool "Freescale MXS-based"
461 select GENERIC_CLOCKEVENTS
462 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100463 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100464 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800465 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800466 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800467 select PINCTRL
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800468 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800469 help
470 Support for Freescale MXS-based family of processors
471
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100472config ARCH_NETX
473 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100474 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000475 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100476 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100477 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000478 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100479 This enables support for systems based on the Hilscher NetX Soc
480
481config ARCH_H720X
482 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000483 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100484 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000485 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100486 help
487 This enables support for systems based on the Hynix HMS720x
488
Russell King3b938be2007-05-12 11:25:44 +0100489config ARCH_IOP13XX
490 bool "IOP13xx-based"
491 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000492 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100493 select PLAT_IOP
494 select PCI
495 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100496 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600497 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400498 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600499 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100500 help
501 Support for Intel's IOP13XX (XScale) family of processors.
502
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100503config ARCH_IOP32X
504 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100505 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000506 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500507 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600508 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600509 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100510 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100511 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100512 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000513 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100514 Support for Intel's 80219 and IOP32X (XScale) family of
515 processors.
516
517config ARCH_IOP33X
518 bool "IOP33x-based"
519 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000520 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500521 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600522 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600523 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100524 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100525 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100526 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100527 help
528 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529
Russell King3b938be2007-05-12 11:25:44 +0100530config ARCH_IXP4XX
531 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100532 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500533 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100534 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200536 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100537 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100538 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600539 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100540 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100541 help
Russell King3b938be2007-05-12 11:25:44 +0100542 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100543
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544config ARCH_DOVE
545 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300546 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300547 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300548 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300549 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600550 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300551 select PLAT_ORION
552 help
553 Support for the Marvell Dove SoC 88AP510
554
Saeed Bishara651c74c2008-06-22 22:45:06 +0200555config ARCH_KIRKWOOD
556 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000557 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200558 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700559 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200560 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600561 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200562 select PLAT_ORION
563 help
564 Support for the following Marvell Kirkwood series SoCs:
565 88F6180, 88F6192 and 88F6281.
566
Kevin Wells40805942010-07-27 08:49:04 -0700567config ARCH_LPC32XX
568 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100569 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700570 select CPU_ARM926T
571 select ARCH_REQUIRE_GPIOLIB
572 select HAVE_IDE
573 select ARM_AMBA
574 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100575 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700576 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200577 select USE_OF
Alexandre Pereira da Silvac49a1832012-07-20 14:01:51 +0200578 select HAVE_PWM
Kevin Wells40805942010-07-27 08:49:04 -0700579 help
580 Support for the NXP LPC32XX family of processors
581
Russell King788c9702009-04-26 14:21:59 +0100582config ARCH_MV78XX0
583 bool "Marvell MV78xx0"
584 select CPU_FEROCEON
585 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700586 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100587 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600588 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100589 select PLAT_ORION
590 help
591 Support for the following Marvell MV78xx0 series SoCs:
592 MV781x0, MV782x0.
593
594config ARCH_ORION5X
595 bool "Marvell Orion"
596 depends on MMU
597 select CPU_FEROCEON
598 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700599 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100600 select GENERIC_CLOCKEVENTS
Andrew Lunnb5e12222012-06-22 20:57:57 +0200601 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100602 select PLAT_ORION
603 help
604 Support for the following Marvell Orion 5x series SoCs:
605 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
606 Orion-2 (5281), Orion-1-90 (6183).
607
608config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500609 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100610 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100611 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100613 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800614 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800615 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100616 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400617 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800618 select GENERIC_ALLOCATOR
Rob Herring01464222012-08-28 13:06:41 -0500619 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100620 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500621 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100622
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100623config ARCH_KS8695
624 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000625 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100626 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000627 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400628 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100629 help
630 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
631 System-on-Chip devices.
632
Russell King788c9702009-04-26 14:21:59 +0100633config ARCH_W90X900
634 bool "Nuvoton W90X900 CPU"
635 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100636 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100637 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100638 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100639 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200640 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100641 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
642 At present, the w90x900 has been renamed nuc900, regarding
643 the ARM series product line, you can login the following
644 link address to know more.
645
646 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
647 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400648
Erik Gillingc5f80062010-01-21 16:53:02 -0800649config ARCH_TEGRA
650 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000651 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100652 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800653 select GENERIC_CLOCKEVENTS
654 select GENERIC_GPIO
655 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000656 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000657 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600658 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700659 select ARCH_HAS_CPUFREQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600660 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800661 help
662 This enables support for NVIDIA Tegra based systems (Tegra APX,
663 Tegra 6xx and Tegra 2 series).
664
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100665config ARCH_PNX4008
666 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000667 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100668 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000669 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100670 help
671 This enables support for Philips PNX4008 mobile platform.
672
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700674 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100675 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500676 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100677 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100678 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100679 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700680 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100681 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800682 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800683 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800684 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800685 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800686 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200687 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200688 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500689 select NEED_MACH_GPIO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000690 help
eric miao2c8086a2007-09-11 19:13:17 -0700691 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692
Russell King788c9702009-04-26 14:21:59 +0100693config ARCH_MSM
694 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500695 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800696 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700697 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800698 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800699 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800700 Support for Qualcomm MSM/QSD based systems. This runs on the
701 apps processor of the MSM/QSD and depends on a shared memory
702 interface to the modem processor which runs the baseband
703 stack and controls some vital subsystems
704 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800705
Magnus Dammc793c1b2010-02-05 11:14:49 +0000706config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900707 bool "Renesas SH-Mobile / R-Mobile"
708 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900709 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900710 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000711 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900712 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000713 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900714 select NO_IOPORT
715 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000716 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200717 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400718 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000719 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900720 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000721
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722config ARCH_RPC
723 bool "RiscPC"
724 select ARCH_ACORN
725 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100726 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100727 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000728 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000729 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100730 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000731 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200732 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600733 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400734 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 help
736 On the Acorn Risc-PC, Linux can support the internal IDE disk and
737 CD-ROM interface, serial and parallel port, and the floppy drive.
738
739config ARCH_SA1100
740 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100741 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000742 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100743 select ISA
Russell King05944d72006-11-30 20:43:51 +0000744 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500745 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100746 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000747 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100748 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800749 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700750 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200751 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500752 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400753 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100754 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000755 help
756 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900758config ARCH_S3C24XX
759 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800760 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100761 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700762 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900763 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000764 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900765 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900766 select HAVE_S3C_RTC if RTC_CLASS
767 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500768 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600769 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900771 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
772 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
773 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
774 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900775
Ben Dooksa08ab632008-10-21 14:06:39 +0100776config ARCH_S3C64XX
777 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000778 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900779 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900780 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100781 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900782 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900783 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900784 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000785 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100786 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select ARCH_REQUIRE_GPIOLIB
788 select SAMSUNG_CLKSRC
789 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900790 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900791 select S3C_DEV_NAND
792 select USB_ARCH_HAS_OHCI
793 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900794 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900795 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500796 select NEED_MACH_GPIO_H
Ben Dooksa08ab632008-10-21 14:06:39 +0100797 help
798 Samsung S3C64XX series based systems
799
Kukjin Kim49b7a492010-09-07 15:47:18 +0900800config ARCH_S5P64X0
801 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900802 select CPU_V6
803 select GENERIC_GPIO
804 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900805 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900806 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900807 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900808 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900809 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900810 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500811 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900812 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900813 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
814 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900815
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200816config ARCH_S5PC100
817 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900818 select GENERIC_GPIO
819 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900820 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900821 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900822 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900823 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900824 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900825 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500826 select NEED_MACH_GPIO_H
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
Rob Herring01464222012-08-28 13:06:41 -0500844 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400845 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900846 help
847 Samsung S5PV210/S5PC110 series based systems
848
Kukjin Kim83014572011-11-06 13:54:56 +0900849config ARCH_EXYNOS
850 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900851 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900852 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900853 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900854 select GENERIC_GPIO
855 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900856 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900857 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900858 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900859 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900860 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900861 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500862 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400863 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900864 help
Kukjin Kim83014572011-11-06 13:54:56 +0900865 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867config ARCH_SHARK
868 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000869 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100870 select ISA
871 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100872 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100873 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000874 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400875 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600876 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000877 help
878 Support for the StrongARM based Digital DNARD machine, also known
879 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Linus Walleijd98aac72009-04-27 10:21:46 +0100881config ARCH_U300
882 bool "ST-Ericsson U300 Series"
883 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100884 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100885 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100886 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200888 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100889 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100891 select CLKDEV_LOOKUP
Linus Walleij50667d62012-06-19 23:44:25 +0200892 select COMMON_CLK
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100894 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 help
896 Support for ST-Ericsson U300 series mobile platforms.
897
Russell Kingccf50e22010-03-15 19:03:06 +0000898config ARCH_U8500
899 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700900 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000901 select CPU_V7
902 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000903 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100904 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100905 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100906 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000907 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000908 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000909 help
910 Support for ST-Ericsson's Ux500 architecture
911
912config ARCH_NOMADIK
913 bool "STMicroelectronics Nomadik"
914 select ARM_AMBA
915 select ARM_VIC
916 select CPU_ARM926T
Linus Walleij4a31bd22012-01-11 13:52:34 +0100917 select COMMON_CLK
Russell Kingccf50e22010-03-15 19:03:06 +0000918 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000919 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000920 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000921 select ARCH_REQUIRE_GPIOLIB
922 help
923 Support for the Nomadik platform by ST-Ericsson
924
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100925config ARCH_DAVINCI
926 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100927 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700928 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100929 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700930 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100931 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700932 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100933 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530934 select ARCH_HAS_HOLES_MEMORYMODEL
Rob Herring01464222012-08-28 13:06:41 -0500935 select NEED_MACH_GPIO_H
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100936 help
937 Support for TI's DaVinci platform.
938
Russell King3b938be2007-05-12 11:25:44 +0100939config ARCH_OMAP
940 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600941 depends on MMU
David Brownell9483a572008-07-23 21:26:48 -0700942 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700943 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100944 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700945 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700946 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800947 select ARCH_HAS_HOLES_MEMORYMODEL
Rob Herring01464222012-08-28 13:06:41 -0500948 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100949 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200950 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100951
viresh kumarcee37e52010-04-01 12:31:05 +0100952config PLAT_SPEAR
953 bool "ST SPEAr"
954 select ARM_AMBA
955 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100956 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530957 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100958 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100959 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100960 select HAVE_CLK
961 help
962 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
963
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100964config ARCH_VT8500
965 bool "VIA/WonderMedia 85xx"
966 select CPU_ARM926T
967 select GENERIC_GPIO
968 select ARCH_HAS_CPUFREQ
969 select GENERIC_CLOCKEVENTS
970 select ARCH_REQUIRE_GPIOLIB
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100971 help
972 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800973
John Linnb85a3ef2011-06-20 11:47:27 -0600974config ARCH_ZYNQ
975 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800976 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 select GENERIC_CLOCKEVENTS
978 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600979 select ARM_GIC
980 select ARM_AMBA
981 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000982 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800983 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800984 help
John Linnb85a3ef2011-06-20 11:47:27 -0600985 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986endchoice
987
Rob Herring387798b2012-09-06 13:41:12 -0500988menu "Multiple platform selection"
989 depends on ARCH_MULTIPLATFORM
990
991comment "CPU Core family selection"
992
993config ARCH_MULTI_V4
994 bool "ARMv4 based platforms (FA526, StrongARM)"
995 select ARCH_MULTI_V4_V5
996 depends on !ARCH_MULTI_V6_V7
997
998config ARCH_MULTI_V4T
999 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
1000 select ARCH_MULTI_V4_V5
1001 depends on !ARCH_MULTI_V6_V7
1002
1003config ARCH_MULTI_V5
1004 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
1005 select ARCH_MULTI_V4_V5
1006 depends on !ARCH_MULTI_V6_V7
1007
1008config ARCH_MULTI_V4_V5
1009 bool
1010
1011config ARCH_MULTI_V6
1012 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
1013 select CPU_V6
1014 select ARCH_MULTI_V6_V7
1015
1016config ARCH_MULTI_V7
1017 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
1018 select CPU_V7
1019 default y
1020 select ARCH_MULTI_V6_V7
1021
1022config ARCH_MULTI_V6_V7
1023 bool
1024
1025config ARCH_MULTI_CPU_AUTO
1026 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1027 select ARCH_MULTI_V5
1028
1029endmenu
1030
Russell Kingccf50e22010-03-15 19:03:06 +00001031#
1032# This is sorted alphabetically by mach-* pathname. However, plat-*
1033# Kconfigs may be included either alphabetically (according to the
1034# plat- suffix) or along side the corresponding mach-* source.
1035#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001036source "arch/arm/mach-mvebu/Kconfig"
1037
Russell King95b8f202010-01-14 11:43:54 +00001038source "arch/arm/mach-at91/Kconfig"
1039
1040source "arch/arm/mach-bcmring/Kconfig"
1041
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042source "arch/arm/mach-clps711x/Kconfig"
1043
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001044source "arch/arm/mach-cns3xxx/Kconfig"
1045
Russell King95b8f202010-01-14 11:43:54 +00001046source "arch/arm/mach-davinci/Kconfig"
1047
1048source "arch/arm/mach-dove/Kconfig"
1049
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001050source "arch/arm/mach-ep93xx/Kconfig"
1051
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052source "arch/arm/mach-footbridge/Kconfig"
1053
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001054source "arch/arm/mach-gemini/Kconfig"
1055
Russell King95b8f202010-01-14 11:43:54 +00001056source "arch/arm/mach-h720x/Kconfig"
1057
Rob Herring387798b2012-09-06 13:41:12 -05001058source "arch/arm/mach-highbank/Kconfig"
1059
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060source "arch/arm/mach-integrator/Kconfig"
1061
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001062source "arch/arm/mach-iop32x/Kconfig"
1063
1064source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
Dan Williams285f5fa2006-12-07 02:59:39 +01001066source "arch/arm/mach-iop13xx/Kconfig"
1067
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068source "arch/arm/mach-ixp4xx/Kconfig"
1069
Russell King95b8f202010-01-14 11:43:54 +00001070source "arch/arm/mach-kirkwood/Kconfig"
1071
1072source "arch/arm/mach-ks8695/Kconfig"
1073
Russell King95b8f202010-01-14 11:43:54 +00001074source "arch/arm/mach-msm/Kconfig"
1075
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001076source "arch/arm/mach-mv78xx0/Kconfig"
1077
Russell King95b8f202010-01-14 11:43:54 +00001078source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001080source "arch/arm/mach-mxs/Kconfig"
1081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-nomadik/Kconfig"
1085source "arch/arm/plat-nomadik/Kconfig"
1086
Tony Lindgrend48af152005-07-10 19:58:17 +01001087source "arch/arm/plat-omap/Kconfig"
1088
1089source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Tony Lindgren1dbae812005-11-10 14:26:51 +00001091source "arch/arm/mach-omap2/Kconfig"
1092
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001093source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001094
Rob Herring387798b2012-09-06 13:41:12 -05001095source "arch/arm/mach-picoxcell/Kconfig"
1096
Russell King95b8f202010-01-14 11:43:54 +00001097source "arch/arm/mach-pxa/Kconfig"
1098source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099
Russell King95b8f202010-01-14 11:43:54 +00001100source "arch/arm/mach-mmp/Kconfig"
1101
1102source "arch/arm/mach-realview/Kconfig"
1103
1104source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001105
Ben Dookscf383672009-11-10 00:14:58 +00001106source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001107source "arch/arm/plat-s3c24xx/Kconfig"
1108
Rob Herring387798b2012-09-06 13:41:12 -05001109source "arch/arm/mach-socfpga/Kconfig"
1110
viresh kumarcee37e52010-04-01 12:31:05 +01001111source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001112
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001113source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001114if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001115source "arch/arm/mach-s3c2412/Kconfig"
1116source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001117endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Ben Dooksa08ab632008-10-21 14:06:39 +01001119if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001120source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001121endif
1122
Kukjin Kim49b7a492010-09-07 15:47:18 +09001123source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001124
Byungho Min5a7652f2009-06-23 21:39:42 +09001125source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001126
Kukjin Kim170f4e42010-02-24 16:40:44 +09001127source "arch/arm/mach-s5pv210/Kconfig"
1128
Kukjin Kim83014572011-11-06 13:54:56 +09001129source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001130
Russell King882d01f2010-03-02 23:40:15 +00001131source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132
Erik Gillingc5f80062010-01-21 16:53:02 -08001133source "arch/arm/mach-tegra/Kconfig"
1134
Russell King95b8f202010-01-14 11:43:54 +00001135source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
Russell King95b8f202010-01-14 11:43:54 +00001137source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138
1139source "arch/arm/mach-versatile/Kconfig"
1140
Russell Kingceade892010-02-11 21:44:53 +00001141source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001142source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001143
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001144source "arch/arm/mach-vt8500/Kconfig"
1145
wanzongshun7ec80dd2008-12-03 03:55:38 +01001146source "arch/arm/mach-w90x900/Kconfig"
1147
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148# Definitions to make life easier
1149config ARCH_ACORN
1150 bool
1151
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001152config PLAT_IOP
1153 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001154 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001155
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001156config PLAT_ORION
1157 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001158 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001159 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001160 select IRQ_DOMAIN
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001161 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001162
Eric Miaobd5ce432009-01-20 12:06:01 +08001163config PLAT_PXA
1164 bool
1165
Russell Kingf4b8b312010-01-14 12:48:06 +00001166config PLAT_VERSATILE
1167 bool
1168
Russell Kinge3887712010-01-14 13:30:16 +00001169config ARM_TIMER_SP804
1170 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001171 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001172 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001173
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174source arch/arm/mm/Kconfig
1175
Russell King958cab02011-12-11 10:04:00 +00001176config ARM_NR_BANKS
1177 int
1178 default 16 if ARCH_EP93XX
1179 default 8
1180
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001181config IWMMXT
1182 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001183 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1184 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001185 help
1186 Enable support for iWMMXt context switching at run time if
1187 running on a CPU that supports it.
1188
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189config XSCALE_PMU
1190 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001191 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 default y
1193
Jamie Iles0f4f0672010-02-02 20:23:15 +01001194config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001195 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001196 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001197 default y
1198 bool
1199
eric miao52108642010-12-13 09:42:34 +01001200config MULTI_IRQ_HANDLER
1201 bool
1202 help
1203 Allow each machine to specify it's own IRQ handler at run time.
1204
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001205if !MMU
1206source "arch/arm/Kconfig-nommu"
1207endif
1208
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001209config ARM_ERRATA_326103
1210 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1211 depends on CPU_V6
1212 help
1213 Executing a SWP instruction to read-only memory does not set bit 11
1214 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1215 treat the access as a read, preventing a COW from occurring and
1216 causing the faulting task to livelock.
1217
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001218config ARM_ERRATA_411920
1219 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001220 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001221 help
1222 Invalidation of the Instruction Cache operation can
1223 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1224 It does not affect the MPCore. This option enables the ARM Ltd.
1225 recommended workaround.
1226
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001227config ARM_ERRATA_430973
1228 bool "ARM errata: Stale prediction on replaced interworking branch"
1229 depends on CPU_V7
1230 help
1231 This option enables the workaround for the 430973 Cortex-A8
1232 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1233 interworking branch is replaced with another code sequence at the
1234 same virtual address, whether due to self-modifying code or virtual
1235 to physical address re-mapping, Cortex-A8 does not recover from the
1236 stale interworking branch prediction. This results in Cortex-A8
1237 executing the new code sequence in the incorrect ARM or Thumb state.
1238 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1239 and also flushes the branch target cache at every context switch.
1240 Note that setting specific bits in the ACTLR register may not be
1241 available in non-secure mode.
1242
Catalin Marinas855c5512009-04-30 17:06:15 +01001243config ARM_ERRATA_458693
1244 bool "ARM errata: Processor deadlock when a false hazard is created"
1245 depends on CPU_V7
1246 help
1247 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1248 erratum. For very specific sequences of memory operations, it is
1249 possible for a hazard condition intended for a cache line to instead
1250 be incorrectly associated with a different cache line. This false
1251 hazard might then cause a processor deadlock. The workaround enables
1252 the L1 caching of the NEON accesses and disables the PLD instruction
1253 in the ACTLR register. Note that setting specific bits in the ACTLR
1254 register may not be available in non-secure mode.
1255
Catalin Marinas0516e462009-04-30 17:06:20 +01001256config ARM_ERRATA_460075
1257 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1258 depends on CPU_V7
1259 help
1260 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1261 erratum. Any asynchronous access to the L2 cache may encounter a
1262 situation in which recent store transactions to the L2 cache are lost
1263 and overwritten with stale memory contents from external memory. The
1264 workaround disables the write-allocate mode for the L2 cache via the
1265 ACTLR register. Note that setting specific bits in the ACTLR register
1266 may not be available in non-secure mode.
1267
Will Deacon9f050272010-09-14 09:51:43 +01001268config ARM_ERRATA_742230
1269 bool "ARM errata: DMB operation may be faulty"
1270 depends on CPU_V7 && SMP
1271 help
1272 This option enables the workaround for the 742230 Cortex-A9
1273 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1274 between two write operations may not ensure the correct visibility
1275 ordering of the two writes. This workaround sets a specific bit in
1276 the diagnostic register of the Cortex-A9 which causes the DMB
1277 instruction to behave as a DSB, ensuring the correct behaviour of
1278 the two writes.
1279
Will Deacona672e992010-09-14 09:53:02 +01001280config ARM_ERRATA_742231
1281 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1282 depends on CPU_V7 && SMP
1283 help
1284 This option enables the workaround for the 742231 Cortex-A9
1285 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1286 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1287 accessing some data located in the same cache line, may get corrupted
1288 data due to bad handling of the address hazard when the line gets
1289 replaced from one of the CPUs at the same time as another CPU is
1290 accessing it. This workaround sets specific bits in the diagnostic
1291 register of the Cortex-A9 which reduces the linefill issuing
1292 capabilities of the processor.
1293
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001294config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001295 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001296 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001297 help
1298 The PL310 L2 cache controller implements three types of Clean &
1299 Invalidate maintenance operations: by Physical Address
1300 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1301 They are architecturally defined to behave as the execution of a
1302 clean operation followed immediately by an invalidate operation,
1303 both performing to the same memory location. This functionality
1304 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001305 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001306
1307config ARM_ERRATA_720789
1308 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001309 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001310 help
1311 This option enables the workaround for the 720789 Cortex-A9 (prior to
1312 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1313 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1314 As a consequence of this erratum, some TLB entries which should be
1315 invalidated are not, resulting in an incoherency in the system page
1316 tables. The workaround changes the TLB flushing routines to invalidate
1317 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001318
Russell King1f0090a2011-03-16 23:35:25 +00001319config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001320 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001321 depends on CACHE_L2X0
1322 help
1323 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1324 operation (offset 0x7FC). This operation runs in background so that
1325 PL310 can handle normal accesses while it is in progress. Under very
1326 rare circumstances, due to this erratum, write data can be lost when
1327 PL310 treats a cacheable write transaction during a Clean &
1328 Invalidate by Way operation.
1329
Will Deacon475d92f2010-09-28 14:02:02 +01001330config ARM_ERRATA_743622
1331 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1332 depends on CPU_V7
1333 help
1334 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001335 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001336 optimisation in the Cortex-A9 Store Buffer may lead to data
1337 corruption. This workaround sets a specific bit in the diagnostic
1338 register of the Cortex-A9 which disables the Store Buffer
1339 optimisation, preventing the defect from occurring. This has no
1340 visible impact on the overall performance or power consumption of the
1341 processor.
1342
Will Deacon9a27c272011-02-18 16:36:35 +01001343config ARM_ERRATA_751472
1344 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001345 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001346 help
1347 This option enables the workaround for the 751472 Cortex-A9 (prior
1348 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1349 completion of a following broadcasted operation if the second
1350 operation is received by a CPU before the ICIALLUIS has completed,
1351 potentially leading to corrupted entries in the cache or TLB.
1352
Will Deaconfa0ce402011-11-14 17:24:57 +01001353config PL310_ERRATA_753970
1354 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001355 depends on CACHE_PL310
1356 help
1357 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1358
1359 Under some condition the effect of cache sync operation on
1360 the store buffer still remains when the operation completes.
1361 This means that the store buffer is always asked to drain and
1362 this prevents it from merging any further writes. The workaround
1363 is to replace the normal offset of cache sync operation (0x730)
1364 by another offset targeting an unmapped PL310 register 0x740.
1365 This has the same effect as the cache sync operation: store buffer
1366 drain and waiting for all buffers empty.
1367
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001368config ARM_ERRATA_754322
1369 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1370 depends on CPU_V7
1371 help
1372 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1373 r3p*) erratum. A speculative memory access may cause a page table walk
1374 which starts prior to an ASID switch but completes afterwards. This
1375 can populate the micro-TLB with a stale entry which may be hit with
1376 the new ASID. This workaround places two dsb instructions in the mm
1377 switching code so that no page table walks can cross the ASID switch.
1378
Will Deacon5dab26af2011-03-04 12:38:54 +01001379config ARM_ERRATA_754327
1380 bool "ARM errata: no automatic Store Buffer drain"
1381 depends on CPU_V7 && SMP
1382 help
1383 This option enables the workaround for the 754327 Cortex-A9 (prior to
1384 r2p0) erratum. The Store Buffer does not have any automatic draining
1385 mechanism and therefore a livelock may occur if an external agent
1386 continuously polls a memory location waiting to observe an update.
1387 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1388 written polling loops from denying visibility of updates to memory.
1389
Catalin Marinas145e10e2011-08-15 11:04:41 +01001390config ARM_ERRATA_364296
1391 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1392 depends on CPU_V6 && !SMP
1393 help
1394 This options enables the workaround for the 364296 ARM1136
1395 r0p2 erratum (possible cache data corruption with
1396 hit-under-miss enabled). It sets the undocumented bit 31 in
1397 the auxiliary control register and the FI bit in the control
1398 register, thus disabling hit-under-miss without putting the
1399 processor into full low interrupt latency mode. ARM11MPCore
1400 is not affected.
1401
Will Deaconf630c1b2011-09-15 11:45:15 +01001402config ARM_ERRATA_764369
1403 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1404 depends on CPU_V7 && SMP
1405 help
1406 This option enables the workaround for erratum 764369
1407 affecting Cortex-A9 MPCore with two or more processors (all
1408 current revisions). Under certain timing circumstances, a data
1409 cache line maintenance operation by MVA targeting an Inner
1410 Shareable memory region may fail to proceed up to either the
1411 Point of Coherency or to the Point of Unification of the
1412 system. This workaround adds a DSB instruction before the
1413 relevant cache maintenance functions and sets a specific bit
1414 in the diagnostic control register of the SCU.
1415
Will Deacon11ed0ba2011-11-14 17:24:58 +01001416config PL310_ERRATA_769419
1417 bool "PL310 errata: no automatic Store Buffer drain"
1418 depends on CACHE_L2X0
1419 help
1420 On revisions of the PL310 prior to r3p2, the Store Buffer does
1421 not automatically drain. This can cause normal, non-cacheable
1422 writes to be retained when the memory system is idle, leading
1423 to suboptimal I/O performance for drivers using coherent DMA.
1424 This option adds a write barrier to the cpu_idle loop so that,
1425 on systems with an outer cache, the store buffer is drained
1426 explicitly.
1427
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428endmenu
1429
1430source "arch/arm/common/Kconfig"
1431
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432menu "Bus support"
1433
1434config ARM_AMBA
1435 bool
1436
1437config ISA
1438 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 help
1440 Find out whether you have ISA slots on your motherboard. ISA is the
1441 name of a bus system, i.e. the way the CPU talks to the other stuff
1442 inside your box. Other bus systems are PCI, EISA, MicroChannel
1443 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1444 newer boards don't support it. If you have ISA, say Y, otherwise N.
1445
Russell King065909b2006-01-04 15:44:16 +00001446# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447config ISA_DMA
1448 bool
Russell King065909b2006-01-04 15:44:16 +00001449 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450
Russell King065909b2006-01-04 15:44:16 +00001451# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001452config ISA_DMA_API
1453 bool
Al Viro5cae8412005-05-04 05:39:22 +01001454
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001456 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 help
1458 Find out whether you have a PCI motherboard. PCI is the name of a
1459 bus system, i.e. the way the CPU talks to the other stuff inside
1460 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1461 VESA. If you have PCI, say Y, otherwise N.
1462
Anton Vorontsov52882172010-04-19 13:20:49 +01001463config PCI_DOMAINS
1464 bool
1465 depends on PCI
1466
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001467config PCI_NANOENGINE
1468 bool "BSE nanoEngine PCI support"
1469 depends on SA1100_NANOENGINE
1470 help
1471 Enable PCI on the BSE nanoEngine board.
1472
Matthew Wilcox36e23592007-07-10 10:54:40 -06001473config PCI_SYSCALL
1474 def_bool PCI
1475
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476# Select the host bridge type
1477config PCI_HOST_VIA82C505
1478 bool
1479 depends on PCI && ARCH_SHARK
1480 default y
1481
Mike Rapoporta0113a92007-11-25 08:55:34 +01001482config PCI_HOST_ITE8152
1483 bool
1484 depends on PCI && MACH_ARMCORE
1485 default y
1486 select DMABOUNCE
1487
Linus Torvalds1da177e2005-04-16 15:20:36 -07001488source "drivers/pci/Kconfig"
1489
1490source "drivers/pcmcia/Kconfig"
1491
1492endmenu
1493
1494menu "Kernel Features"
1495
Dave Martin3b556582011-12-07 15:38:04 +00001496config HAVE_SMP
1497 bool
1498 help
1499 This option should be selected by machines which have an SMP-
1500 capable CPU.
1501
1502 The only effect of this option is to make the SMP-related
1503 options available to the user for configuration.
1504
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001506 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001507 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001508 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001509 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001510 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001511 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001512 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 help
1514 This enables support for systems with more than one CPU. If you have
1515 a system with only one CPU, like most personal computers, say N. If
1516 you have a system with more than one CPU, say Y.
1517
1518 If you say N here, the kernel will run on single and multiprocessor
1519 machines, but will use only one CPU of a multiprocessor machine. If
1520 you say Y here, the kernel will run on many, but not all, single
1521 processor machines. On a single processor machine, the kernel will
1522 run faster if you say N here.
1523
Paul Bolle395cf962011-08-15 02:02:26 +02001524 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001526 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527
1528 If you don't know what to do here, say N.
1529
Russell Kingf00ec482010-09-04 10:47:48 +01001530config SMP_ON_UP
1531 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1532 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001533 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001534 default y
1535 help
1536 SMP kernels contain instructions which fail on non-SMP processors.
1537 Enabling this option allows the kernel to modify itself to make
1538 these instructions safe. Disabling it allows about 1K of space
1539 savings.
1540
1541 If you don't know what to do here, say Y.
1542
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001543config ARM_CPU_TOPOLOGY
1544 bool "Support cpu topology definition"
1545 depends on SMP && CPU_V7
1546 default y
1547 help
1548 Support ARM cpu topology definition. The MPIDR register defines
1549 affinity between processors which is then used to describe the cpu
1550 topology of an ARM System.
1551
1552config SCHED_MC
1553 bool "Multi-core scheduler support"
1554 depends on ARM_CPU_TOPOLOGY
1555 help
1556 Multi-core scheduler support improves the CPU scheduler's decision
1557 making when dealing with multi-core CPU chips at a cost of slightly
1558 increased overhead in some places. If unsure say N here.
1559
1560config SCHED_SMT
1561 bool "SMT scheduler support"
1562 depends on ARM_CPU_TOPOLOGY
1563 help
1564 Improves the CPU scheduler's decision making when dealing with
1565 MultiThreading at a cost of slightly increased overhead in some
1566 places. If unsure say N here.
1567
Russell Kinga8cbcd92009-05-16 11:51:14 +01001568config HAVE_ARM_SCU
1569 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001570 help
1571 This option enables support for the ARM system coherency unit
1572
Marc Zyngier022c03a2012-01-11 17:25:17 +00001573config ARM_ARCH_TIMER
1574 bool "Architected timer support"
1575 depends on CPU_V7
1576 help
1577 This option enables support for the ARM architected timer
1578
Russell Kingf32f4ce2009-05-16 12:14:21 +01001579config HAVE_ARM_TWD
1580 bool
1581 depends on SMP
1582 help
1583 This options enables support for the ARM timer and watchdog unit
1584
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001585choice
1586 prompt "Memory split"
1587 default VMSPLIT_3G
1588 help
1589 Select the desired split between kernel and user memory.
1590
1591 If you are not absolutely sure what you are doing, leave this
1592 option alone!
1593
1594 config VMSPLIT_3G
1595 bool "3G/1G user/kernel split"
1596 config VMSPLIT_2G
1597 bool "2G/2G user/kernel split"
1598 config VMSPLIT_1G
1599 bool "1G/3G user/kernel split"
1600endchoice
1601
1602config PAGE_OFFSET
1603 hex
1604 default 0x40000000 if VMSPLIT_1G
1605 default 0x80000000 if VMSPLIT_2G
1606 default 0xC0000000
1607
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608config NR_CPUS
1609 int "Maximum number of CPUs (2-32)"
1610 range 2 32
1611 depends on SMP
1612 default "4"
1613
Russell Kinga054a812005-11-02 22:24:33 +00001614config HOTPLUG_CPU
1615 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1616 depends on SMP && HOTPLUG && EXPERIMENTAL
1617 help
1618 Say Y here to experiment with turning CPUs off and on. CPUs
1619 can be controlled through /sys/devices/system/cpu.
1620
Russell King37ee16a2005-11-08 19:08:05 +00001621config LOCAL_TIMERS
1622 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001623 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001624 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001625 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001626 help
1627 Enable support for local timers on SMP platforms, rather then the
1628 legacy IPI broadcast method. Local timers allows the system
1629 accounting to be spread across the timer interval, preventing a
1630 "thundering herd" at every timer tick.
1631
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001632config ARCH_NR_GPIO
1633 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001634 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001635 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001636 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301637 default 512 if SOC_OMAP5
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001638 default 0
1639 help
1640 Maximum number of GPIOs in the system.
1641
1642 If unsure, leave the default value.
1643
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001644source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001645
Russell Kingf8065812006-03-02 22:41:59 +00001646config HZ
1647 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001648 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001649 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001650 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001651 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001652 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001653 default 100
1654
Catalin Marinas16c79652009-07-24 12:33:02 +01001655config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001656 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001657 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001658 select AEABI
1659 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001660 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001661 help
1662 By enabling this option, the kernel will be compiled in
1663 Thumb-2 mode. A compiler/assembler that understand the unified
1664 ARM-Thumb syntax is needed.
1665
1666 If unsure, say N.
1667
Dave Martin6f685c52011-03-03 11:41:12 +01001668config THUMB2_AVOID_R_ARM_THM_JUMP11
1669 bool "Work around buggy Thumb-2 short branch relocations in gas"
1670 depends on THUMB2_KERNEL && MODULES
1671 default y
1672 help
1673 Various binutils versions can resolve Thumb-2 branches to
1674 locally-defined, preemptible global symbols as short-range "b.n"
1675 branch instructions.
1676
1677 This is a problem, because there's no guarantee the final
1678 destination of the symbol, or any candidate locations for a
1679 trampoline, are within range of the branch. For this reason, the
1680 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1681 relocation in modules at all, and it makes little sense to add
1682 support.
1683
1684 The symptom is that the kernel fails with an "unsupported
1685 relocation" error when loading some modules.
1686
1687 Until fixed tools are available, passing
1688 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1689 code which hits this problem, at the cost of a bit of extra runtime
1690 stack usage in some cases.
1691
1692 The problem is described in more detail at:
1693 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1694
1695 Only Thumb-2 kernels are affected.
1696
1697 Unless you are sure your tools don't have this problem, say Y.
1698
Catalin Marinas0becb082009-07-24 12:32:53 +01001699config ARM_ASM_UNIFIED
1700 bool
1701
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001702config AEABI
1703 bool "Use the ARM EABI to compile the kernel"
1704 help
1705 This option allows for the kernel to be compiled using the latest
1706 ARM ABI (aka EABI). This is only useful if you are using a user
1707 space environment that is also compiled with EABI.
1708
1709 Since there are major incompatibilities between the legacy ABI and
1710 EABI, especially with regard to structure member alignment, this
1711 option also changes the kernel syscall calling convention to
1712 disambiguate both ABIs and allow for backward compatibility support
1713 (selected with CONFIG_OABI_COMPAT).
1714
1715 To use this you need GCC version 4.0.0 or later.
1716
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001717config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001718 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001719 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001720 default y
1721 help
1722 This option preserves the old syscall interface along with the
1723 new (ARM EABI) one. It also provides a compatibility layer to
1724 intercept syscalls that have structure arguments which layout
1725 in memory differs between the legacy ABI and the new ARM EABI
1726 (only for non "thumb" binaries). This option adds a tiny
1727 overhead to all syscalls and produces a slightly larger kernel.
1728 If you know you'll be using only pure EABI user space then you
1729 can say N here. If this option is not selected and you attempt
1730 to execute a legacy ABI binary then the result will be
1731 UNPREDICTABLE (in fact it can be predicted that it won't work
1732 at all). If in doubt say Y.
1733
Mel Gormaneb335752009-05-13 17:34:48 +01001734config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001735 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001736
Russell King05944d72006-11-30 20:43:51 +00001737config ARCH_SPARSEMEM_ENABLE
1738 bool
1739
Russell King07a2f732008-10-01 21:39:58 +01001740config ARCH_SPARSEMEM_DEFAULT
1741 def_bool ARCH_SPARSEMEM_ENABLE
1742
Russell King05944d72006-11-30 20:43:51 +00001743config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001744 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001745
Will Deacon7b7bf492011-05-19 13:21:14 +01001746config HAVE_ARCH_PFN_VALID
1747 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1748
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001749config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001750 bool "High Memory Support"
1751 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001752 help
1753 The address space of ARM processors is only 4 Gigabytes large
1754 and it has to accommodate user address space, kernel address
1755 space as well as some memory mapped IO. That means that, if you
1756 have a large amount of physical memory and/or IO, not all of the
1757 memory can be "permanently mapped" by the kernel. The physical
1758 memory that is not permanently mapped is called "high memory".
1759
1760 Depending on the selected kernel/user memory split, minimum
1761 vmalloc space and actual amount of RAM, you may not need this
1762 option which should result in a slightly faster kernel.
1763
1764 If unsure, say n.
1765
Russell King65cec8e2009-08-17 20:02:06 +01001766config HIGHPTE
1767 bool "Allocate 2nd-level pagetables from highmem"
1768 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001769
Jamie Iles1b8873a2010-02-02 20:25:44 +01001770config HW_PERF_EVENTS
1771 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001772 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001773 default y
1774 help
1775 Enable hardware performance counter support for perf events. If
1776 disabled, perf events will use software events only.
1777
Dave Hansen3f22ab22005-06-23 00:07:43 -07001778source "mm/Kconfig"
1779
Magnus Dammc1b2d972010-07-05 10:00:11 +01001780config FORCE_MAX_ZONEORDER
1781 int "Maximum zone order" if ARCH_SHMOBILE
1782 range 11 64 if ARCH_SHMOBILE
1783 default "9" if SA1111
1784 default "11"
1785 help
1786 The kernel memory allocator divides physically contiguous memory
1787 blocks into "zones", where each zone is a power of two number of
1788 pages. This option selects the largest power of two that the kernel
1789 keeps in the memory allocator. If you need to allocate very large
1790 blocks of physically contiguous memory, then you may need to
1791 increase this value.
1792
1793 This config option is actually maximum order plus one. For example,
1794 a value of 11 means that the largest free memory block is 2^10 pages.
1795
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796config LEDS
1797 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001798 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001799 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1801 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001802 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001803 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001804 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 help
1806 If you say Y here, the LEDs on your machine will be used
1807 to provide useful information about your current system status.
1808
1809 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1810 be able to select which LEDs are active using the options below. If
1811 you are compiling a kernel for the EBSA-110 or the LART however, the
1812 red LED will simply flash regularly to indicate that the system is
1813 still functional. It is safe to say Y here if you have a CATS
1814 system, but the driver will do nothing.
1815
1816config LEDS_TIMER
1817 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001818 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1819 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001821 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 default y if ARCH_EBSA110
1823 help
1824 If you say Y here, one of the system LEDs (the green one on the
1825 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1826 will flash regularly to indicate that the system is still
1827 operational. This is mainly useful to kernel hackers who are
1828 debugging unstable kernels.
1829
1830 The LART uses the same LED for both Timer LED and CPU usage LED
1831 functions. You may choose to use both, but the Timer LED function
1832 will overrule the CPU usage LED.
1833
1834config LEDS_CPU
1835 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001836 !ARCH_OMAP) \
1837 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1838 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839 depends on LEDS
1840 help
1841 If you say Y here, the red LED will be used to give a good real
1842 time indication of CPU usage, by lighting whenever the idle task
1843 is not currently executing.
1844
1845 The LART uses the same LED for both Timer LED and CPU usage LED
1846 functions. You may choose to use both, but the Timer LED function
1847 will overrule the CPU usage LED.
1848
1849config ALIGNMENT_TRAP
1850 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001851 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001853 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001855 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1857 address divisible by 4. On 32-bit ARM processors, these non-aligned
1858 fetch/store instructions will be emulated in software if you say
1859 here, which has a severe performance impact. This is necessary for
1860 correct operation of some network protocols. With an IP-only
1861 configuration it is safe to say N, otherwise say Y.
1862
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001863config UACCESS_WITH_MEMCPY
1864 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1865 depends on MMU && EXPERIMENTAL
1866 default y if CPU_FEROCEON
1867 help
1868 Implement faster copy_to_user and clear_user methods for CPU
1869 cores where a 8-word STM instruction give significantly higher
1870 memory write throughput than a sequence of individual 32bit stores.
1871
1872 A possible side effect is a slight increase in scheduling latency
1873 between threads sharing the same address space if they invoke
1874 such copy operations with large buffers.
1875
1876 However, if the CPU data cache is using a write-allocate mode,
1877 this option is unlikely to provide any performance gain.
1878
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001879config SECCOMP
1880 bool
1881 prompt "Enable seccomp to safely compute untrusted bytecode"
1882 ---help---
1883 This kernel feature is useful for number crunching applications
1884 that may need to compute untrusted bytecode during their
1885 execution. By using pipes or other transports made available to
1886 the process as file descriptors supporting the read/write
1887 syscalls, it's possible to isolate those applications in
1888 their own address space using seccomp. Once seccomp is
1889 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1890 and the task is only allowed to execute a few safe syscalls
1891 defined by each seccomp mode.
1892
Nicolas Pitrec743f382010-05-24 23:55:42 -04001893config CC_STACKPROTECTOR
1894 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001895 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001896 help
1897 This option turns on the -fstack-protector GCC feature. This
1898 feature puts, at the beginning of functions, a canary value on
1899 the stack just before the return address, and validates
1900 the value just before actually returning. Stack based buffer
1901 overflows (that need to overwrite this return address) now also
1902 overwrite the canary, which gets detected and the attack is then
1903 neutralized via a kernel panic.
1904 This feature requires gcc version 4.2 or above.
1905
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001906config DEPRECATED_PARAM_STRUCT
1907 bool "Provide old way to pass kernel parameters"
1908 help
1909 This was deprecated in 2001 and announced to live on for 5 years.
1910 Some old boot loaders still use this way.
1911
Linus Torvalds1da177e2005-04-16 15:20:36 -07001912endmenu
1913
1914menu "Boot options"
1915
Grant Likely9eb8f672011-04-28 14:27:20 -06001916config USE_OF
1917 bool "Flattened Device Tree support"
1918 select OF
1919 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001920 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001921 help
1922 Include support for flattened device tree machine descriptions.
1923
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924# Compressed boot loader in ROM. Yes, we really want to ask about
1925# TEXT and BSS so we preserve their values in the config files.
1926config ZBOOT_ROM_TEXT
1927 hex "Compressed ROM boot loader base address"
1928 default "0"
1929 help
1930 The physical address at which the ROM-able zImage is to be
1931 placed in the target. Platforms which normally make use of
1932 ROM-able zImage formats normally set this to a suitable
1933 value in their defconfig file.
1934
1935 If ZBOOT_ROM is not enabled, this has no effect.
1936
1937config ZBOOT_ROM_BSS
1938 hex "Compressed ROM boot loader BSS address"
1939 default "0"
1940 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001941 The base address of an area of read/write memory in the target
1942 for the ROM-able zImage which must be available while the
1943 decompressor is running. It must be large enough to hold the
1944 entire decompressed kernel plus an additional 128 KiB.
1945 Platforms which normally make use of ROM-able zImage formats
1946 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001947
1948 If ZBOOT_ROM is not enabled, this has no effect.
1949
1950config ZBOOT_ROM
1951 bool "Compressed boot loader in ROM/flash"
1952 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1953 help
1954 Say Y here if you intend to execute your compressed kernel image
1955 (zImage) directly from ROM or flash. If unsure, say N.
1956
Simon Horman090ab3f2011-04-26 06:29:53 +01001957choice
1958 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1959 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1960 default ZBOOT_ROM_NONE
1961 help
1962 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001963 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001964 kernel image to an MMC or SD card and boot the kernel straight
1965 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001966 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001967 rest the kernel image to RAM.
1968
1969config ZBOOT_ROM_NONE
1970 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1971 help
1972 Do not load image from SD or MMC
1973
Simon Hormanf45b1142011-01-11 04:01:08 +01001974config ZBOOT_ROM_MMCIF
1975 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001976 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001977 Load image from MMCIF hardware block.
1978
1979config ZBOOT_ROM_SH_MOBILE_SDHI
1980 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1981 help
1982 Load image from SDHI hardware block
1983
1984endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001985
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001986config ARM_APPENDED_DTB
1987 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1988 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1989 help
1990 With this option, the boot code will look for a device tree binary
1991 (DTB) appended to zImage
1992 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1993
1994 This is meant as a backward compatibility convenience for those
1995 systems with a bootloader that can't be upgraded to accommodate
1996 the documented boot protocol using a device tree.
1997
1998 Beware that there is very little in terms of protection against
1999 this option being confused by leftover garbage in memory that might
2000 look like a DTB header after a reboot if no actual DTB is appended
2001 to zImage. Do not leave this option active in a production kernel
2002 if you don't intend to always append a DTB. Proper passing of the
2003 location into r2 of a bootloader provided DTB is always preferable
2004 to this option.
2005
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002006config ARM_ATAG_DTB_COMPAT
2007 bool "Supplement the appended DTB with traditional ATAG information"
2008 depends on ARM_APPENDED_DTB
2009 help
2010 Some old bootloaders can't be updated to a DTB capable one, yet
2011 they provide ATAGs with memory configuration, the ramdisk address,
2012 the kernel cmdline string, etc. Such information is dynamically
2013 provided by the bootloader and can't always be stored in a static
2014 DTB. To allow a device tree enabled kernel to be used with such
2015 bootloaders, this option allows zImage to extract the information
2016 from the ATAG list and store it at run time into the appended DTB.
2017
Genoud Richardd0f34a112012-06-26 16:37:59 +01002018choice
2019 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2020 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2021
2022config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2023 bool "Use bootloader kernel arguments if available"
2024 help
2025 Uses the command-line options passed by the boot loader instead of
2026 the device tree bootargs property. If the boot loader doesn't provide
2027 any, the device tree bootargs property will be used.
2028
2029config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2030 bool "Extend with bootloader kernel arguments"
2031 help
2032 The command-line arguments provided by the boot loader will be
2033 appended to the the device tree bootargs property.
2034
2035endchoice
2036
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037config CMDLINE
2038 string "Default kernel command string"
2039 default ""
2040 help
2041 On some architectures (EBSA110 and CATS), there is currently no way
2042 for the boot loader to pass arguments to the kernel. For these
2043 architectures, you should supply some command-line options at build
2044 time by entering them here. As a minimum, you should specify the
2045 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2046
Victor Boivie4394c122011-05-04 17:07:55 +01002047choice
2048 prompt "Kernel command line type" if CMDLINE != ""
2049 default CMDLINE_FROM_BOOTLOADER
2050
2051config CMDLINE_FROM_BOOTLOADER
2052 bool "Use bootloader kernel arguments if available"
2053 help
2054 Uses the command-line options passed by the boot loader. If
2055 the boot loader doesn't provide any, the default kernel command
2056 string provided in CMDLINE will be used.
2057
2058config CMDLINE_EXTEND
2059 bool "Extend bootloader kernel arguments"
2060 help
2061 The command-line arguments provided by the boot loader will be
2062 appended to the default kernel command string.
2063
Alexander Holler92d20402010-02-16 19:04:53 +01002064config CMDLINE_FORCE
2065 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002066 help
2067 Always use the default kernel command string, even if the boot
2068 loader passes other arguments to the kernel.
2069 This is useful if you cannot or don't want to change the
2070 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002071endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002072
Linus Torvalds1da177e2005-04-16 15:20:36 -07002073config XIP_KERNEL
2074 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002075 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076 help
2077 Execute-In-Place allows the kernel to run from non-volatile storage
2078 directly addressable by the CPU, such as NOR flash. This saves RAM
2079 space since the text section of the kernel is not loaded from flash
2080 to RAM. Read-write sections, such as the data section and stack,
2081 are still copied to RAM. The XIP kernel is not compressed since
2082 it has to run directly from flash, so it will take more space to
2083 store it. The flash address used to link the kernel object files,
2084 and for storing it, is configuration dependent. Therefore, if you
2085 say Y here, you must know the proper physical address where to
2086 store the kernel image depending on your own flash memory usage.
2087
2088 Also note that the make target becomes "make xipImage" rather than
2089 "make zImage" or "make Image". The final kernel binary to put in
2090 ROM memory will be arch/arm/boot/xipImage.
2091
2092 If unsure, say N.
2093
2094config XIP_PHYS_ADDR
2095 hex "XIP Kernel Physical Location"
2096 depends on XIP_KERNEL
2097 default "0x00080000"
2098 help
2099 This is the physical address in your flash memory the kernel will
2100 be linked for and stored to. This address is dependent on your
2101 own flash usage.
2102
Richard Purdiec587e4a2007-02-06 21:29:00 +01002103config KEXEC
2104 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002105 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002106 help
2107 kexec is a system call that implements the ability to shutdown your
2108 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002109 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002110 you can start any kernel with it, not just Linux.
2111
2112 It is an ongoing process to be certain the hardware in a machine
2113 is properly shutdown, so do not be surprised if this code does not
2114 initially work for you. It may help to enable device hotplugging
2115 support.
2116
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002117config ATAGS_PROC
2118 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002119 depends on KEXEC
2120 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002121 help
2122 Should the atags used to boot the kernel be exported in an "atags"
2123 file in procfs. Useful with kexec.
2124
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002125config CRASH_DUMP
2126 bool "Build kdump crash kernel (EXPERIMENTAL)"
2127 depends on EXPERIMENTAL
2128 help
2129 Generate crash dump after being started by kexec. This should
2130 be normally only set in special crash dump kernels which are
2131 loaded in the main kernel with kexec-tools into a specially
2132 reserved region and then later executed after a crash by
2133 kdump/kexec. The crash dump kernel must be compiled to a
2134 memory address not used by the main kernel
2135
2136 For more details see Documentation/kdump/kdump.txt
2137
Eric Miaoe69edc792010-07-05 15:56:50 +02002138config AUTO_ZRELADDR
2139 bool "Auto calculation of the decompressed kernel image address"
2140 depends on !ZBOOT_ROM && !ARCH_U300
2141 help
2142 ZRELADDR is the physical address where the decompressed kernel
2143 image will be placed. If AUTO_ZRELADDR is selected, the address
2144 will be determined at run-time by masking the current IP with
2145 0xf8000000. This assumes the zImage being placed in the first 128MB
2146 from start of memory.
2147
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148endmenu
2149
Russell Kingac9d7ef2008-08-18 17:26:00 +01002150menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151
Ben Dooks89c52ed2009-07-30 23:23:24 +01002152if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153
2154source "drivers/cpufreq/Kconfig"
2155
Yong Shen64f102b2010-10-21 21:18:59 +08002156config CPU_FREQ_IMX
2157 tristate "CPUfreq driver for i.MX CPUs"
2158 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002159 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002160 help
2161 This enables the CPUfreq driver for i.MX CPUs.
2162
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163config CPU_FREQ_SA1100
2164 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165
2166config CPU_FREQ_SA1110
2167 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168
2169config CPU_FREQ_INTEGRATOR
2170 tristate "CPUfreq driver for ARM Integrator CPUs"
2171 depends on ARCH_INTEGRATOR && CPU_FREQ
2172 default y
2173 help
2174 This enables the CPUfreq driver for ARM Integrator CPUs.
2175
2176 For details, take a look at <file:Documentation/cpu-freq>.
2177
2178 If in doubt, say Y.
2179
Russell King9e2697f2007-12-14 13:30:14 +00002180config CPU_FREQ_PXA
2181 bool
2182 depends on CPU_FREQ && ARCH_PXA && PXA25x
2183 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002184 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002185 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2186
Ben Dooks9d56c022009-07-30 23:23:25 +01002187config CPU_FREQ_S3C
2188 bool
2189 help
2190 Internal configuration node for common cpufreq on Samsung SoC
2191
2192config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002193 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002194 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002195 select CPU_FREQ_S3C
2196 help
2197 This enables the CPUfreq driver for the Samsung S3C24XX family
2198 of CPUs.
2199
2200 For details, take a look at <file:Documentation/cpu-freq>.
2201
2202 If in doubt, say N.
2203
2204config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002205 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002206 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2207 help
2208 Compile in support for changing the PLL frequency from the
2209 S3C24XX series CPUfreq driver. The PLL takes time to settle
2210 after a frequency change, so by default it is not enabled.
2211
2212 This also means that the PLL tables for the selected CPU(s) will
2213 be built which may increase the size of the kernel image.
2214
2215config CPU_FREQ_S3C24XX_DEBUG
2216 bool "Debug CPUfreq Samsung driver core"
2217 depends on CPU_FREQ_S3C24XX
2218 help
2219 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2220
2221config CPU_FREQ_S3C24XX_IODEBUG
2222 bool "Debug CPUfreq Samsung driver IO timing"
2223 depends on CPU_FREQ_S3C24XX
2224 help
2225 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2226
Ben Dookse6d197a2009-07-30 23:23:42 +01002227config CPU_FREQ_S3C24XX_DEBUGFS
2228 bool "Export debugfs for CPUFreq"
2229 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2230 help
2231 Export status information via debugfs.
2232
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233endif
2234
Russell Kingac9d7ef2008-08-18 17:26:00 +01002235source "drivers/cpuidle/Kconfig"
2236
2237endmenu
2238
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239menu "Floating point emulation"
2240
2241comment "At least one emulation must be selected"
2242
2243config FPE_NWFPE
2244 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002245 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246 ---help---
2247 Say Y to include the NWFPE floating point emulator in the kernel.
2248 This is necessary to run most binaries. Linux does not currently
2249 support floating point hardware so you need to say Y here even if
2250 your machine has an FPA or floating point co-processor podule.
2251
2252 You may say N here if you are going to load the Acorn FPEmulator
2253 early in the bootup.
2254
2255config FPE_NWFPE_XP
2256 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002257 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258 help
2259 Say Y to include 80-bit support in the kernel floating-point
2260 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2261 Note that gcc does not generate 80-bit operations by default,
2262 so in most cases this option only enlarges the size of the
2263 floating point emulator without any good reason.
2264
2265 You almost surely want to say N here.
2266
2267config FPE_FASTFPE
2268 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002269 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270 ---help---
2271 Say Y here to include the FAST floating point emulator in the kernel.
2272 This is an experimental much faster emulator which now also has full
2273 precision for the mantissa. It does not support any exceptions.
2274 It is very simple, and approximately 3-6 times faster than NWFPE.
2275
2276 It should be sufficient for most programs. It may be not suitable
2277 for scientific calculations, but you have to check this for yourself.
2278 If you do not feel you need a faster FP emulation you should better
2279 choose NWFPE.
2280
2281config VFP
2282 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002283 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284 help
2285 Say Y to include VFP support code in the kernel. This is needed
2286 if your hardware includes a VFP unit.
2287
2288 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2289 release notes and additional status information.
2290
2291 Say N if your target does not have VFP hardware.
2292
Catalin Marinas25ebee02007-09-25 15:22:24 +01002293config VFPv3
2294 bool
2295 depends on VFP
2296 default y if CPU_V7
2297
Catalin Marinasb5872db2008-01-10 19:16:17 +01002298config NEON
2299 bool "Advanced SIMD (NEON) Extension support"
2300 depends on VFPv3 && CPU_V7
2301 help
2302 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2303 Extension.
2304
Linus Torvalds1da177e2005-04-16 15:20:36 -07002305endmenu
2306
2307menu "Userspace binary formats"
2308
2309source "fs/Kconfig.binfmt"
2310
2311config ARTHUR
2312 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002313 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314 help
2315 Say Y here to include the kernel code necessary if you want to run
2316 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2317 experimental; if this sounds frightening, say N and sleep in peace.
2318 You can also say M here to compile this support as a module (which
2319 will be called arthur).
2320
2321endmenu
2322
2323menu "Power management options"
2324
Russell Kingeceab4a2005-11-15 11:31:41 +00002325source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002326
Johannes Bergf4cb5702007-12-08 02:14:00 +01002327config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002328 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002329 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002330 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002331 def_bool y
2332
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002333config ARM_CPU_SUSPEND
2334 def_bool PM_SLEEP
2335
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336endmenu
2337
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002338source "net/Kconfig"
2339
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002340source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341
2342source "fs/Kconfig"
2343
Linus Torvalds1da177e2005-04-16 15:20:36 -07002344source "arch/arm/Kconfig.debug"
2345
2346source "security/Kconfig"
2347
2348source "crypto/Kconfig"
2349
2350source "lib/Kconfig"