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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 Herringc334bc12012-03-04 22:03:33 -0600205config NEED_MACH_IO_H
206 bool
207 help
208 Select this when mach/io.h is required to provide special
209 definitions for this platform. The need for mach/io.h should
210 be avoided when possible.
211
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400212config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400213 bool
Russell King111e9a52011-05-12 10:02:42 +0100214 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400215 Select this when mach/memory.h is required to provide special
216 definitions for this platform. The need for mach/memory.h should
217 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400218
219config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100220 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400221 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100222 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400223 help
224 Please provide the physical address corresponding to the
225 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000226
Simon Glass87e040b2011-08-16 23:44:26 +0100227config GENERIC_BUG
228 def_bool y
229 depends on BUG
230
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231source "init/Kconfig"
232
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700233source "kernel/Kconfig.freezer"
234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235menu "System Type"
236
Hyok S. Choi3c427972009-07-24 12:35:00 +0100237config MMU
238 bool "MMU-based Paged Memory Management Support"
239 default y
240 help
241 Select if you want MMU-based virtualised addressing space
242 support by paged memory management. If unsure, say 'Y'.
243
Russell Kingccf50e22010-03-15 19:03:06 +0000244#
245# The "ARM system type" choice list is ordered alphabetically by option
246# text. Please add new entries in the option alphabetic order.
247#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248choice
249 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000250 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251
Dinh Nguyen66314222012-07-18 16:07:18 -0600252config ARCH_SOCFPGA
253 bool "Altera SOCFPGA family"
254 select ARCH_WANT_OPTIONAL_GPIOLIB
255 select ARM_AMBA
256 select ARM_GIC
257 select CACHE_L2X0
258 select CLKDEV_LOOKUP
259 select COMMON_CLK
260 select CPU_V7
261 select DW_APB_TIMER
262 select DW_APB_TIMER_OF
263 select GENERIC_CLOCKEVENTS
264 select GPIO_PL061 if GPIOLIB
265 select HAVE_ARM_SCU
266 select SPARSE_IRQ
267 select USE_OF
268 help
269 This enables support for Altera SOCFPGA Cyclone V platform
270
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100271config ARCH_INTEGRATOR
272 bool "ARM Ltd. Integrator family"
273 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100274 select ARCH_HAS_CPUFREQ
Linus Walleija6131632012-06-11 17:33:12 +0200275 select COMMON_CLK
276 select CLK_VERSATILE
Linus Walleij9904f792011-12-09 10:29:23 +0100277 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000278 select ICST
Russell King13edd862010-01-15 21:49:23 +0000279 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000280 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000281 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600282 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400283 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100284 select SPARSE_IRQ
Linus Walleij3108e6a2012-04-28 14:33:47 +0100285 select MULTI_IRQ_HANDLER
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286 help
287 Support for ARM's Integrator platform.
288
289config ARCH_REALVIEW
290 bool "ARM Ltd. RealView family"
291 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100292 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900293 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000294 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100295 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100296 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000297 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100298 select PLAT_VERSATILE_CLOCK
Russell King3cb5ee42011-01-18 20:13:20 +0000299 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000300 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100301 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400302 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100303 help
304 This enables support for ARM Ltd RealView boards.
305
306config ARCH_VERSATILE
307 bool "ARM Ltd. Versatile family"
308 select ARM_AMBA
309 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100310 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900311 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000312 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100313 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100314 select ARCH_WANT_OPTIONAL_GPIOLIB
Arnd Bergmann9b0f7e32012-06-11 09:03:58 -0500315 select NEED_MACH_IO_H if PCI
Russell Kingf4b8b312010-01-14 12:48:06 +0000316 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100317 select PLAT_VERSATILE_CLOCK
Russell King3414ba82011-01-18 20:12:10 +0000318 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000319 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000320 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 help
322 This enables support for ARM Ltd Versatile board.
323
Russell Kingceade892010-02-11 21:44:53 +0000324config ARCH_VEXPRESS
325 bool "ARM Ltd. Versatile Express family"
326 select ARCH_WANT_OPTIONAL_GPIOLIB
327 select ARM_AMBA
328 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100329 select CLKDEV_LOOKUP
Pawel Molld1b8a772012-07-13 11:48:16 +0100330 select COMMON_CLK
Russell Kingceade892010-02-11 21:44:53 +0000331 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000332 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100333 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000334 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000335 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000336 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000337 select PLAT_VERSATILE_CLCD
Pawel Mollb2a54ff2012-07-09 11:33:47 +0100338 select REGULATOR_FIXED_VOLTAGE if REGULATOR
Russell Kingceade892010-02-11 21:44:53 +0000339 help
340 This enables support for the ARM Ltd Versatile Express boards.
341
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100342config ARCH_AT91
343 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100344 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700345 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100346 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100347 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500348 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100349 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100350 This enables support for systems based on Atmel
351 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352
Russell Kingccf50e22010-03-15 19:03:06 +0000353config ARCH_BCMRING
354 bool "Broadcom BCMRING"
355 depends on MMU
356 select CPU_V6
357 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100358 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100359 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000360 select GENERIC_CLOCKEVENTS
361 select ARCH_WANT_OPTIONAL_GPIOLIB
362 help
363 Support for Broadcom's BCMRing platform.
364
Rob Herring220e6cf2011-06-07 10:02:55 -0500365config ARCH_HIGHBANK
366 bool "Calxeda Highbank-based"
367 select ARCH_WANT_OPTIONAL_GPIOLIB
368 select ARM_AMBA
369 select ARM_GIC
370 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000371 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500372 select CLKDEV_LOOKUP
Rob Herring8d4d9f52012-03-13 18:19:19 -0500373 select COMMON_CLK
Rob Herring220e6cf2011-06-07 10:02:55 -0500374 select CPU_V7
375 select GENERIC_CLOCKEVENTS
376 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000377 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600378 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500379 select USE_OF
380 help
381 Support for the Calxeda Highbank SoC based boards.
382
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400384 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000385 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000386 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400387 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000388 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400389 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300391config ARCH_CNS3XXX
392 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200393 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300394 select GENERIC_CLOCKEVENTS
395 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000396 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100397 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400398 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300399 help
400 Support for Cavium Networks CNS3XXX platform.
401
Russell King788c9702009-04-26 14:21:59 +0100402config ARCH_GEMINI
403 bool "Cortina Systems Gemini"
404 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100405 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000406 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100407 help
408 Support for the Cortina Systems Gemini family SoCs
409
Barry Song156a0992012-08-23 13:41:58 +0800410config ARCH_SIRF
411 bool "CSR SiRF"
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200412 select NO_IOPORT
Arnd Bergmannf6387092012-07-04 14:33:01 +0000413 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200414 select GENERIC_CLOCKEVENTS
Binghua Duan198678b2012-08-20 06:42:36 +0000415 select COMMON_CLK
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200416 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000417 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800418 select PINCTRL
419 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200420 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200421 help
Barry Song156a0992012-08-23 13:41:58 +0800422 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424config ARCH_EBSA110
425 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100427 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000428 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000429 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600430 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400431 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 help
433 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000434 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 Ethernet interface, two PCMCIA sockets, two serial ports and a
436 parallel port.
437
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000438config ARCH_EP93XX
439 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000440 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000441 select ARM_AMBA
442 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100443 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700444 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100445 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100447 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000448 help
449 This enables support for the Cirrus EP93xx series of CPUs.
450
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451config ARCH_FOOTBRIDGE
452 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000455 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200456 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600457 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400458 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000459 help
460 Support for systems based on the DC21285 companion chip
461 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
Russell King788c9702009-04-26 14:21:59 +0100463config ARCH_MXC
464 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100465 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100466 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100467 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100468 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800469 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200470 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800471 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200472 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100473 help
474 Support for Freescale MXC/iMX-based family of processors
475
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800476config ARCH_MXS
477 bool "Freescale MXS-based"
478 select GENERIC_CLOCKEVENTS
479 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100480 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100481 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800482 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800483 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800484 select PINCTRL
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800485 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800486 help
487 Support for Freescale MXS-based family of processors
488
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100489config ARCH_NETX
490 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100491 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000492 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100493 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100494 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000495 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100496 This enables support for systems based on the Hilscher NetX Soc
497
498config ARCH_H720X
499 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100501 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000502 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100503 help
504 This enables support for systems based on the Hynix HMS720x
505
Russell King3b938be2007-05-12 11:25:44 +0100506config ARCH_IOP13XX
507 bool "IOP13xx-based"
508 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000509 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100510 select PLAT_IOP
511 select PCI
512 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100513 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600514 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400515 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600516 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100517 help
518 Support for Intel's IOP13XX (XScale) family of processors.
519
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100520config ARCH_IOP32X
521 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100522 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600524 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600525 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100526 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100527 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100528 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000529 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100530 Support for Intel's 80219 and IOP32X (XScale) family of
531 processors.
532
533config ARCH_IOP33X
534 bool "IOP33x-based"
535 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000536 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600537 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600538 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100539 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100540 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100541 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100542 help
543 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
Russell King3b938be2007-05-12 11:25:44 +0100545config ARCH_IXP4XX
546 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100547 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500548 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100549 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000550 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200551 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100552 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100553 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600554 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100555 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100556 help
Russell King3b938be2007-05-12 11:25:44 +0100557 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100558
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200559config ARCH_MVEBU
560 bool "Marvell SOCs with Device Tree support"
561 select GENERIC_CLOCKEVENTS
562 select MULTI_IRQ_HANDLER
563 select SPARSE_IRQ
564 select CLKSRC_MMIO
565 select GENERIC_IRQ_CHIP
566 select IRQ_DOMAIN
567 select COMMON_CLK
568 help
569 Support for the Marvell SoC Family with device tree support
570
Saeed Bisharaedabd382009-08-06 15:12:43 +0300571config ARCH_DOVE
572 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300573 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300574 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300575 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300576 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600577 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300578 select PLAT_ORION
579 help
580 Support for the Marvell Dove SoC 88AP510
581
Saeed Bishara651c74c2008-06-22 22:45:06 +0200582config ARCH_KIRKWOOD
583 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000584 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200585 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700586 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200587 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600588 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200589 select PLAT_ORION
590 help
591 Support for the following Marvell Kirkwood series SoCs:
592 88F6180, 88F6192 and 88F6281.
593
Kevin Wells40805942010-07-27 08:49:04 -0700594config ARCH_LPC32XX
595 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100596 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700597 select CPU_ARM926T
598 select ARCH_REQUIRE_GPIOLIB
599 select HAVE_IDE
600 select ARM_AMBA
601 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700603 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200604 select USE_OF
Alexandre Pereira da Silvac49a1832012-07-20 14:01:51 +0200605 select HAVE_PWM
Kevin Wells40805942010-07-27 08:49:04 -0700606 help
607 Support for the NXP LPC32XX family of processors
608
Russell King788c9702009-04-26 14:21:59 +0100609config ARCH_MV78XX0
610 bool "Marvell MV78xx0"
611 select CPU_FEROCEON
612 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700613 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100614 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600615 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100616 select PLAT_ORION
617 help
618 Support for the following Marvell MV78xx0 series SoCs:
619 MV781x0, MV782x0.
620
621config ARCH_ORION5X
622 bool "Marvell Orion"
623 depends on MMU
624 select CPU_FEROCEON
625 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700626 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100627 select GENERIC_CLOCKEVENTS
Andrew Lunnb5e12222012-06-22 20:57:57 +0200628 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100629 select PLAT_ORION
630 help
631 Support for the following Marvell Orion 5x series SoCs:
632 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
633 Orion-2 (5281), Orion-1-90 (6183).
634
635config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500636 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100637 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100638 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100639 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100640 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800641 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800642 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100643 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400644 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800645 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100646 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500647 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100648
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100649config ARCH_KS8695
650 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000651 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100652 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000653 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400654 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100655 help
656 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
657 System-on-Chip devices.
658
Russell King788c9702009-04-26 14:21:59 +0100659config ARCH_W90X900
660 bool "Nuvoton W90X900 CPU"
661 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100662 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100663 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100664 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100665 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200666 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100667 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
668 At present, the w90x900 has been renamed nuc900, regarding
669 the ARM series product line, you can login the following
670 link address to know more.
671
672 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
673 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400674
Erik Gillingc5f80062010-01-21 16:53:02 -0800675config ARCH_TEGRA
676 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000677 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100678 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800679 select GENERIC_CLOCKEVENTS
680 select GENERIC_GPIO
681 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000682 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000683 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600684 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700685 select ARCH_HAS_CPUFREQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600686 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800687 help
688 This enables support for NVIDIA Tegra based systems (Tegra APX,
689 Tegra 6xx and Tegra 2 series).
690
Jamie Ilesaf756552011-07-25 17:36:42 +0100691config ARCH_PICOXCELL
692 bool "Picochip picoXcell"
693 select ARCH_REQUIRE_GPIOLIB
694 select ARM_PATCH_PHYS_VIRT
695 select ARM_VIC
696 select CPU_V6K
697 select DW_APB_TIMER
Dinh Nguyencfda5902012-07-11 15:13:16 -0500698 select DW_APB_TIMER_OF
Jamie Ilesaf756552011-07-25 17:36:42 +0100699 select GENERIC_CLOCKEVENTS
700 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100701 select HAVE_TCM
702 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000703 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100704 select USE_OF
705 help
706 This enables support for systems based on the Picochip picoXcell
707 family of Femtocell devices. The picoxcell support requires device tree
708 for all boards.
709
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100710config ARCH_PNX4008
711 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000712 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100713 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000714 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100715 help
716 This enables support for Philips PNX4008 mobile platform.
717
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700719 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100720 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500721 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100722 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100723 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100724 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700725 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100726 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800727 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800728 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800729 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800730 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800731 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200732 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200733 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000734 help
eric miao2c8086a2007-09-11 19:13:17 -0700735 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736
Russell King788c9702009-04-26 14:21:59 +0100737config ARCH_MSM
738 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500739 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800740 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700741 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800742 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800743 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800744 Support for Qualcomm MSM/QSD based systems. This runs on the
745 apps processor of the MSM/QSD and depends on a shared memory
746 interface to the modem processor which runs the baseband
747 stack and controls some vital subsystems
748 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800749
Magnus Dammc793c1b2010-02-05 11:14:49 +0000750config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900751 bool "Renesas SH-Mobile / R-Mobile"
752 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900753 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900754 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000755 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900756 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000757 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900758 select NO_IOPORT
759 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000760 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200761 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400762 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000763 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900764 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000765
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766config ARCH_RPC
767 bool "RiscPC"
768 select ARCH_ACORN
769 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100770 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100771 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000772 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000773 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100774 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000775 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200776 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600777 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400778 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 help
780 On the Acorn Risc-PC, Linux can support the internal IDE disk and
781 CD-ROM interface, serial and parallel port, and the floppy drive.
782
783config ARCH_SA1100
784 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100785 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000786 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100787 select ISA
Russell King05944d72006-11-30 20:43:51 +0000788 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500789 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100790 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000791 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100792 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800793 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700794 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200795 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400796 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100797 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000798 help
799 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900801config ARCH_S3C24XX
802 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800803 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100804 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700805 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900806 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000807 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900808 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900809 select HAVE_S3C_RTC if RTC_CLASS
810 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600811 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900813 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
814 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
815 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
816 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900817
Ben Dooksa08ab632008-10-21 14:06:39 +0100818config ARCH_S3C64XX
819 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000820 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900821 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900822 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100823 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900824 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900825 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900826 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000827 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100828 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900829 select ARCH_REQUIRE_GPIOLIB
830 select SAMSUNG_CLKSRC
831 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900832 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900833 select S3C_DEV_NAND
834 select USB_ARCH_HAS_OHCI
835 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900836 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900837 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100838 help
839 Samsung S3C64XX series based systems
840
Kukjin Kim49b7a492010-09-07 15:47:18 +0900841config ARCH_S5P64X0
842 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900843 select CPU_V6
844 select GENERIC_GPIO
845 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900846 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900847 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900848 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900849 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900850 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900851 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900852 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900853 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
854 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900855
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200856config ARCH_S5PC100
857 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900858 select GENERIC_GPIO
859 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900860 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900861 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900862 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900863 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900864 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900865 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900866 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200867 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900868
Kukjin Kim170f4e42010-02-24 16:40:44 +0900869config ARCH_S5PV210
870 bool "Samsung S5PV210/S5PC110"
871 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900872 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900873 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900874 select GENERIC_GPIO
875 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900876 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900877 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900878 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900879 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900880 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900881 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900882 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400883 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900884 help
885 Samsung S5PV210/S5PC110 series based systems
886
Kukjin Kim83014572011-11-06 13:54:56 +0900887config ARCH_EXYNOS
888 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900889 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900890 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900891 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900892 select GENERIC_GPIO
893 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900894 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900895 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900896 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900897 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900898 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900899 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400900 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900901 help
Kukjin Kim83014572011-11-06 13:54:56 +0900902 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900903
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904config ARCH_SHARK
905 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000906 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100907 select ISA
908 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100909 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100910 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000911 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400912 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600913 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000914 help
915 Support for the StrongARM based Digital DNARD machine, also known
916 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917
Linus Walleijd98aac72009-04-27 10:21:46 +0100918config ARCH_U300
919 bool "ST-Ericsson U300 Series"
920 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100921 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100922 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100923 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100924 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200925 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100926 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100927 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100928 select CLKDEV_LOOKUP
Linus Walleij50667d62012-06-19 23:44:25 +0200929 select COMMON_CLK
Linus Walleijd98aac72009-04-27 10:21:46 +0100930 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100931 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100932 help
933 Support for ST-Ericsson U300 series mobile platforms.
934
Russell Kingccf50e22010-03-15 19:03:06 +0000935config ARCH_U8500
936 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700937 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000938 select CPU_V7
939 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000940 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100941 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100942 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100943 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000944 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000945 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000946 help
947 Support for ST-Ericsson's Ux500 architecture
948
949config ARCH_NOMADIK
950 bool "STMicroelectronics Nomadik"
951 select ARM_AMBA
952 select ARM_VIC
953 select CPU_ARM926T
Linus Walleij4a31bd22012-01-11 13:52:34 +0100954 select COMMON_CLK
Russell Kingccf50e22010-03-15 19:03:06 +0000955 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000956 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000957 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000958 select ARCH_REQUIRE_GPIOLIB
959 help
960 Support for the Nomadik platform by ST-Ericsson
961
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100962config ARCH_DAVINCI
963 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100964 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700965 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100966 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700967 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100968 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700969 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100970 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530971 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100972 help
973 Support for TI's DaVinci platform.
974
Russell King3b938be2007-05-12 11:25:44 +0100975config ARCH_OMAP
976 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600977 depends on MMU
David Brownell9483a572008-07-23 21:26:48 -0700978 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700979 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100980 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700981 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700982 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800983 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100984 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200985 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100986
viresh kumarcee37e52010-04-01 12:31:05 +0100987config PLAT_SPEAR
988 bool "ST SPEAr"
989 select ARM_AMBA
990 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100991 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530992 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100993 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100994 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100995 select HAVE_CLK
996 help
997 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
998
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100999config ARCH_VT8500
1000 bool "VIA/WonderMedia 85xx"
1001 select CPU_ARM926T
1002 select GENERIC_GPIO
1003 select ARCH_HAS_CPUFREQ
1004 select GENERIC_CLOCKEVENTS
1005 select ARCH_REQUIRE_GPIOLIB
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001006 help
1007 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +08001008
John Linnb85a3ef2011-06-20 11:47:27 -06001009config ARCH_ZYNQ
1010 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001011 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001012 select GENERIC_CLOCKEVENTS
1013 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001014 select ARM_GIC
1015 select ARM_AMBA
1016 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001017 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001018 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001019 help
John Linnb85a3ef2011-06-20 11:47:27 -06001020 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021endchoice
1022
Russell Kingccf50e22010-03-15 19:03:06 +00001023#
1024# This is sorted alphabetically by mach-* pathname. However, plat-*
1025# Kconfigs may be included either alphabetically (according to the
1026# plat- suffix) or along side the corresponding mach-* source.
1027#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001028source "arch/arm/mach-mvebu/Kconfig"
1029
Russell King95b8f202010-01-14 11:43:54 +00001030source "arch/arm/mach-at91/Kconfig"
1031
1032source "arch/arm/mach-bcmring/Kconfig"
1033
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034source "arch/arm/mach-clps711x/Kconfig"
1035
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001036source "arch/arm/mach-cns3xxx/Kconfig"
1037
Russell King95b8f202010-01-14 11:43:54 +00001038source "arch/arm/mach-davinci/Kconfig"
1039
1040source "arch/arm/mach-dove/Kconfig"
1041
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001042source "arch/arm/mach-ep93xx/Kconfig"
1043
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044source "arch/arm/mach-footbridge/Kconfig"
1045
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001046source "arch/arm/mach-gemini/Kconfig"
1047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-h720x/Kconfig"
1049
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050source "arch/arm/mach-integrator/Kconfig"
1051
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001052source "arch/arm/mach-iop32x/Kconfig"
1053
1054source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055
Dan Williams285f5fa2006-12-07 02:59:39 +01001056source "arch/arm/mach-iop13xx/Kconfig"
1057
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058source "arch/arm/mach-ixp4xx/Kconfig"
1059
Russell King95b8f202010-01-14 11:43:54 +00001060source "arch/arm/mach-kirkwood/Kconfig"
1061
1062source "arch/arm/mach-ks8695/Kconfig"
1063
Russell King95b8f202010-01-14 11:43:54 +00001064source "arch/arm/mach-msm/Kconfig"
1065
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001066source "arch/arm/mach-mv78xx0/Kconfig"
1067
Russell King95b8f202010-01-14 11:43:54 +00001068source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001070source "arch/arm/mach-mxs/Kconfig"
1071
Russell King95b8f202010-01-14 11:43:54 +00001072source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001073
Russell King95b8f202010-01-14 11:43:54 +00001074source "arch/arm/mach-nomadik/Kconfig"
1075source "arch/arm/plat-nomadik/Kconfig"
1076
Tony Lindgrend48af152005-07-10 19:58:17 +01001077source "arch/arm/plat-omap/Kconfig"
1078
1079source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
Tony Lindgren1dbae812005-11-10 14:26:51 +00001081source "arch/arm/mach-omap2/Kconfig"
1082
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001083source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001084
Russell King95b8f202010-01-14 11:43:54 +00001085source "arch/arm/mach-pxa/Kconfig"
1086source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
Russell King95b8f202010-01-14 11:43:54 +00001088source "arch/arm/mach-mmp/Kconfig"
1089
1090source "arch/arm/mach-realview/Kconfig"
1091
1092source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001093
Ben Dookscf383672009-11-10 00:14:58 +00001094source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001095source "arch/arm/plat-s3c24xx/Kconfig"
1096
viresh kumarcee37e52010-04-01 12:31:05 +01001097source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001098
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001099source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001100if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001101source "arch/arm/mach-s3c2412/Kconfig"
1102source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001103endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104
Ben Dooksa08ab632008-10-21 14:06:39 +01001105if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001106source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001107endif
1108
Kukjin Kim49b7a492010-09-07 15:47:18 +09001109source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001110
Byungho Min5a7652f2009-06-23 21:39:42 +09001111source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001112
Kukjin Kim170f4e42010-02-24 16:40:44 +09001113source "arch/arm/mach-s5pv210/Kconfig"
1114
Kukjin Kim83014572011-11-06 13:54:56 +09001115source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001116
Russell King882d01f2010-03-02 23:40:15 +00001117source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Barry Song156a0992012-08-23 13:41:58 +08001119source "arch/arm/mach-prima2/Kconfig"
1120
Erik Gillingc5f80062010-01-21 16:53:02 -08001121source "arch/arm/mach-tegra/Kconfig"
1122
Russell King95b8f202010-01-14 11:43:54 +00001123source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
Russell King95b8f202010-01-14 11:43:54 +00001125source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126
1127source "arch/arm/mach-versatile/Kconfig"
1128
Russell Kingceade892010-02-11 21:44:53 +00001129source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001130source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001131
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001132source "arch/arm/mach-vt8500/Kconfig"
1133
wanzongshun7ec80dd2008-12-03 03:55:38 +01001134source "arch/arm/mach-w90x900/Kconfig"
1135
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136# Definitions to make life easier
1137config ARCH_ACORN
1138 bool
1139
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001140config PLAT_IOP
1141 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001142 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001143
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001144config PLAT_ORION
1145 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001146 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001147 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001148 select IRQ_DOMAIN
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001149 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001150
Eric Miaobd5ce432009-01-20 12:06:01 +08001151config PLAT_PXA
1152 bool
1153
Russell Kingf4b8b312010-01-14 12:48:06 +00001154config PLAT_VERSATILE
1155 bool
1156
Russell Kinge3887712010-01-14 13:30:16 +00001157config ARM_TIMER_SP804
1158 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001159 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001160 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001161
Linus Torvalds1da177e2005-04-16 15:20:36 -07001162source arch/arm/mm/Kconfig
1163
Russell King958cab02011-12-11 10:04:00 +00001164config ARM_NR_BANKS
1165 int
1166 default 16 if ARCH_EP93XX
1167 default 8
1168
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001169config IWMMXT
1170 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001171 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1172 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001173 help
1174 Enable support for iWMMXt context switching at run time if
1175 running on a CPU that supports it.
1176
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177config XSCALE_PMU
1178 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001179 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180 default y
1181
Jamie Iles0f4f0672010-02-02 20:23:15 +01001182config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001183 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001184 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001185 default y
1186 bool
1187
eric miao52108642010-12-13 09:42:34 +01001188config MULTI_IRQ_HANDLER
1189 bool
1190 help
1191 Allow each machine to specify it's own IRQ handler at run time.
1192
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001193if !MMU
1194source "arch/arm/Kconfig-nommu"
1195endif
1196
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001197config ARM_ERRATA_326103
1198 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1199 depends on CPU_V6
1200 help
1201 Executing a SWP instruction to read-only memory does not set bit 11
1202 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1203 treat the access as a read, preventing a COW from occurring and
1204 causing the faulting task to livelock.
1205
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001206config ARM_ERRATA_411920
1207 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001208 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001209 help
1210 Invalidation of the Instruction Cache operation can
1211 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1212 It does not affect the MPCore. This option enables the ARM Ltd.
1213 recommended workaround.
1214
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001215config ARM_ERRATA_430973
1216 bool "ARM errata: Stale prediction on replaced interworking branch"
1217 depends on CPU_V7
1218 help
1219 This option enables the workaround for the 430973 Cortex-A8
1220 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1221 interworking branch is replaced with another code sequence at the
1222 same virtual address, whether due to self-modifying code or virtual
1223 to physical address re-mapping, Cortex-A8 does not recover from the
1224 stale interworking branch prediction. This results in Cortex-A8
1225 executing the new code sequence in the incorrect ARM or Thumb state.
1226 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1227 and also flushes the branch target cache at every context switch.
1228 Note that setting specific bits in the ACTLR register may not be
1229 available in non-secure mode.
1230
Catalin Marinas855c5512009-04-30 17:06:15 +01001231config ARM_ERRATA_458693
1232 bool "ARM errata: Processor deadlock when a false hazard is created"
1233 depends on CPU_V7
1234 help
1235 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1236 erratum. For very specific sequences of memory operations, it is
1237 possible for a hazard condition intended for a cache line to instead
1238 be incorrectly associated with a different cache line. This false
1239 hazard might then cause a processor deadlock. The workaround enables
1240 the L1 caching of the NEON accesses and disables the PLD instruction
1241 in the ACTLR register. Note that setting specific bits in the ACTLR
1242 register may not be available in non-secure mode.
1243
Catalin Marinas0516e462009-04-30 17:06:20 +01001244config ARM_ERRATA_460075
1245 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1246 depends on CPU_V7
1247 help
1248 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1249 erratum. Any asynchronous access to the L2 cache may encounter a
1250 situation in which recent store transactions to the L2 cache are lost
1251 and overwritten with stale memory contents from external memory. The
1252 workaround disables the write-allocate mode for the L2 cache via the
1253 ACTLR register. Note that setting specific bits in the ACTLR register
1254 may not be available in non-secure mode.
1255
Will Deacon9f050272010-09-14 09:51:43 +01001256config ARM_ERRATA_742230
1257 bool "ARM errata: DMB operation may be faulty"
1258 depends on CPU_V7 && SMP
1259 help
1260 This option enables the workaround for the 742230 Cortex-A9
1261 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1262 between two write operations may not ensure the correct visibility
1263 ordering of the two writes. This workaround sets a specific bit in
1264 the diagnostic register of the Cortex-A9 which causes the DMB
1265 instruction to behave as a DSB, ensuring the correct behaviour of
1266 the two writes.
1267
Will Deacona672e992010-09-14 09:53:02 +01001268config ARM_ERRATA_742231
1269 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1270 depends on CPU_V7 && SMP
1271 help
1272 This option enables the workaround for the 742231 Cortex-A9
1273 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1274 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1275 accessing some data located in the same cache line, may get corrupted
1276 data due to bad handling of the address hazard when the line gets
1277 replaced from one of the CPUs at the same time as another CPU is
1278 accessing it. This workaround sets specific bits in the diagnostic
1279 register of the Cortex-A9 which reduces the linefill issuing
1280 capabilities of the processor.
1281
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001282config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001283 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001284 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001285 help
1286 The PL310 L2 cache controller implements three types of Clean &
1287 Invalidate maintenance operations: by Physical Address
1288 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1289 They are architecturally defined to behave as the execution of a
1290 clean operation followed immediately by an invalidate operation,
1291 both performing to the same memory location. This functionality
1292 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001293 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001294
1295config ARM_ERRATA_720789
1296 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001297 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001298 help
1299 This option enables the workaround for the 720789 Cortex-A9 (prior to
1300 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1301 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1302 As a consequence of this erratum, some TLB entries which should be
1303 invalidated are not, resulting in an incoherency in the system page
1304 tables. The workaround changes the TLB flushing routines to invalidate
1305 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001306
Russell King1f0090a2011-03-16 23:35:25 +00001307config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001308 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001309 depends on CACHE_L2X0
1310 help
1311 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1312 operation (offset 0x7FC). This operation runs in background so that
1313 PL310 can handle normal accesses while it is in progress. Under very
1314 rare circumstances, due to this erratum, write data can be lost when
1315 PL310 treats a cacheable write transaction during a Clean &
1316 Invalidate by Way operation.
1317
Will Deacon475d92f2010-09-28 14:02:02 +01001318config ARM_ERRATA_743622
1319 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1320 depends on CPU_V7
1321 help
1322 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001323 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001324 optimisation in the Cortex-A9 Store Buffer may lead to data
1325 corruption. This workaround sets a specific bit in the diagnostic
1326 register of the Cortex-A9 which disables the Store Buffer
1327 optimisation, preventing the defect from occurring. This has no
1328 visible impact on the overall performance or power consumption of the
1329 processor.
1330
Will Deacon9a27c272011-02-18 16:36:35 +01001331config ARM_ERRATA_751472
1332 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001333 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001334 help
1335 This option enables the workaround for the 751472 Cortex-A9 (prior
1336 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1337 completion of a following broadcasted operation if the second
1338 operation is received by a CPU before the ICIALLUIS has completed,
1339 potentially leading to corrupted entries in the cache or TLB.
1340
Will Deaconfa0ce402011-11-14 17:24:57 +01001341config PL310_ERRATA_753970
1342 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001343 depends on CACHE_PL310
1344 help
1345 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1346
1347 Under some condition the effect of cache sync operation on
1348 the store buffer still remains when the operation completes.
1349 This means that the store buffer is always asked to drain and
1350 this prevents it from merging any further writes. The workaround
1351 is to replace the normal offset of cache sync operation (0x730)
1352 by another offset targeting an unmapped PL310 register 0x740.
1353 This has the same effect as the cache sync operation: store buffer
1354 drain and waiting for all buffers empty.
1355
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001356config ARM_ERRATA_754322
1357 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1358 depends on CPU_V7
1359 help
1360 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1361 r3p*) erratum. A speculative memory access may cause a page table walk
1362 which starts prior to an ASID switch but completes afterwards. This
1363 can populate the micro-TLB with a stale entry which may be hit with
1364 the new ASID. This workaround places two dsb instructions in the mm
1365 switching code so that no page table walks can cross the ASID switch.
1366
Will Deacon5dab26af2011-03-04 12:38:54 +01001367config ARM_ERRATA_754327
1368 bool "ARM errata: no automatic Store Buffer drain"
1369 depends on CPU_V7 && SMP
1370 help
1371 This option enables the workaround for the 754327 Cortex-A9 (prior to
1372 r2p0) erratum. The Store Buffer does not have any automatic draining
1373 mechanism and therefore a livelock may occur if an external agent
1374 continuously polls a memory location waiting to observe an update.
1375 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1376 written polling loops from denying visibility of updates to memory.
1377
Catalin Marinas145e10e2011-08-15 11:04:41 +01001378config ARM_ERRATA_364296
1379 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1380 depends on CPU_V6 && !SMP
1381 help
1382 This options enables the workaround for the 364296 ARM1136
1383 r0p2 erratum (possible cache data corruption with
1384 hit-under-miss enabled). It sets the undocumented bit 31 in
1385 the auxiliary control register and the FI bit in the control
1386 register, thus disabling hit-under-miss without putting the
1387 processor into full low interrupt latency mode. ARM11MPCore
1388 is not affected.
1389
Will Deaconf630c1b2011-09-15 11:45:15 +01001390config ARM_ERRATA_764369
1391 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1392 depends on CPU_V7 && SMP
1393 help
1394 This option enables the workaround for erratum 764369
1395 affecting Cortex-A9 MPCore with two or more processors (all
1396 current revisions). Under certain timing circumstances, a data
1397 cache line maintenance operation by MVA targeting an Inner
1398 Shareable memory region may fail to proceed up to either the
1399 Point of Coherency or to the Point of Unification of the
1400 system. This workaround adds a DSB instruction before the
1401 relevant cache maintenance functions and sets a specific bit
1402 in the diagnostic control register of the SCU.
1403
Will Deacon11ed0ba2011-11-14 17:24:58 +01001404config PL310_ERRATA_769419
1405 bool "PL310 errata: no automatic Store Buffer drain"
1406 depends on CACHE_L2X0
1407 help
1408 On revisions of the PL310 prior to r3p2, the Store Buffer does
1409 not automatically drain. This can cause normal, non-cacheable
1410 writes to be retained when the memory system is idle, leading
1411 to suboptimal I/O performance for drivers using coherent DMA.
1412 This option adds a write barrier to the cpu_idle loop so that,
1413 on systems with an outer cache, the store buffer is drained
1414 explicitly.
1415
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416endmenu
1417
1418source "arch/arm/common/Kconfig"
1419
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420menu "Bus support"
1421
1422config ARM_AMBA
1423 bool
1424
1425config ISA
1426 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 help
1428 Find out whether you have ISA slots on your motherboard. ISA is the
1429 name of a bus system, i.e. the way the CPU talks to the other stuff
1430 inside your box. Other bus systems are PCI, EISA, MicroChannel
1431 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1432 newer boards don't support it. If you have ISA, say Y, otherwise N.
1433
Russell King065909b2006-01-04 15:44:16 +00001434# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435config ISA_DMA
1436 bool
Russell King065909b2006-01-04 15:44:16 +00001437 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438
Russell King065909b2006-01-04 15:44:16 +00001439# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001440config ISA_DMA_API
1441 bool
Al Viro5cae8412005-05-04 05:39:22 +01001442
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001444 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445 help
1446 Find out whether you have a PCI motherboard. PCI is the name of a
1447 bus system, i.e. the way the CPU talks to the other stuff inside
1448 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1449 VESA. If you have PCI, say Y, otherwise N.
1450
Anton Vorontsov52882172010-04-19 13:20:49 +01001451config PCI_DOMAINS
1452 bool
1453 depends on PCI
1454
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001455config PCI_NANOENGINE
1456 bool "BSE nanoEngine PCI support"
1457 depends on SA1100_NANOENGINE
1458 help
1459 Enable PCI on the BSE nanoEngine board.
1460
Matthew Wilcox36e23592007-07-10 10:54:40 -06001461config PCI_SYSCALL
1462 def_bool PCI
1463
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464# Select the host bridge type
1465config PCI_HOST_VIA82C505
1466 bool
1467 depends on PCI && ARCH_SHARK
1468 default y
1469
Mike Rapoporta0113a92007-11-25 08:55:34 +01001470config PCI_HOST_ITE8152
1471 bool
1472 depends on PCI && MACH_ARMCORE
1473 default y
1474 select DMABOUNCE
1475
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476source "drivers/pci/Kconfig"
1477
1478source "drivers/pcmcia/Kconfig"
1479
1480endmenu
1481
1482menu "Kernel Features"
1483
Dave Martin3b556582011-12-07 15:38:04 +00001484config HAVE_SMP
1485 bool
1486 help
1487 This option should be selected by machines which have an SMP-
1488 capable CPU.
1489
1490 The only effect of this option is to make the SMP-related
1491 options available to the user for configuration.
1492
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001494 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001495 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001496 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001497 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001498 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001499 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001500 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501 help
1502 This enables support for systems with more than one CPU. If you have
1503 a system with only one CPU, like most personal computers, say N. If
1504 you have a system with more than one CPU, say Y.
1505
1506 If you say N here, the kernel will run on single and multiprocessor
1507 machines, but will use only one CPU of a multiprocessor machine. If
1508 you say Y here, the kernel will run on many, but not all, single
1509 processor machines. On a single processor machine, the kernel will
1510 run faster if you say N here.
1511
Paul Bolle395cf962011-08-15 02:02:26 +02001512 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001514 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001515
1516 If you don't know what to do here, say N.
1517
Russell Kingf00ec482010-09-04 10:47:48 +01001518config SMP_ON_UP
1519 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1520 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001521 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001522 default y
1523 help
1524 SMP kernels contain instructions which fail on non-SMP processors.
1525 Enabling this option allows the kernel to modify itself to make
1526 these instructions safe. Disabling it allows about 1K of space
1527 savings.
1528
1529 If you don't know what to do here, say Y.
1530
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001531config ARM_CPU_TOPOLOGY
1532 bool "Support cpu topology definition"
1533 depends on SMP && CPU_V7
1534 default y
1535 help
1536 Support ARM cpu topology definition. The MPIDR register defines
1537 affinity between processors which is then used to describe the cpu
1538 topology of an ARM System.
1539
1540config SCHED_MC
1541 bool "Multi-core scheduler support"
1542 depends on ARM_CPU_TOPOLOGY
1543 help
1544 Multi-core scheduler support improves the CPU scheduler's decision
1545 making when dealing with multi-core CPU chips at a cost of slightly
1546 increased overhead in some places. If unsure say N here.
1547
1548config SCHED_SMT
1549 bool "SMT scheduler support"
1550 depends on ARM_CPU_TOPOLOGY
1551 help
1552 Improves the CPU scheduler's decision making when dealing with
1553 MultiThreading at a cost of slightly increased overhead in some
1554 places. If unsure say N here.
1555
Russell Kinga8cbcd92009-05-16 11:51:14 +01001556config HAVE_ARM_SCU
1557 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001558 help
1559 This option enables support for the ARM system coherency unit
1560
Marc Zyngier022c03a2012-01-11 17:25:17 +00001561config ARM_ARCH_TIMER
1562 bool "Architected timer support"
1563 depends on CPU_V7
1564 help
1565 This option enables support for the ARM architected timer
1566
Russell Kingf32f4ce2009-05-16 12:14:21 +01001567config HAVE_ARM_TWD
1568 bool
1569 depends on SMP
1570 help
1571 This options enables support for the ARM timer and watchdog unit
1572
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001573choice
1574 prompt "Memory split"
1575 default VMSPLIT_3G
1576 help
1577 Select the desired split between kernel and user memory.
1578
1579 If you are not absolutely sure what you are doing, leave this
1580 option alone!
1581
1582 config VMSPLIT_3G
1583 bool "3G/1G user/kernel split"
1584 config VMSPLIT_2G
1585 bool "2G/2G user/kernel split"
1586 config VMSPLIT_1G
1587 bool "1G/3G user/kernel split"
1588endchoice
1589
1590config PAGE_OFFSET
1591 hex
1592 default 0x40000000 if VMSPLIT_1G
1593 default 0x80000000 if VMSPLIT_2G
1594 default 0xC0000000
1595
Linus Torvalds1da177e2005-04-16 15:20:36 -07001596config NR_CPUS
1597 int "Maximum number of CPUs (2-32)"
1598 range 2 32
1599 depends on SMP
1600 default "4"
1601
Russell Kinga054a812005-11-02 22:24:33 +00001602config HOTPLUG_CPU
1603 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1604 depends on SMP && HOTPLUG && EXPERIMENTAL
1605 help
1606 Say Y here to experiment with turning CPUs off and on. CPUs
1607 can be controlled through /sys/devices/system/cpu.
1608
Russell King37ee16a2005-11-08 19:08:05 +00001609config LOCAL_TIMERS
1610 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001611 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001612 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001613 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001614 help
1615 Enable support for local timers on SMP platforms, rather then the
1616 legacy IPI broadcast method. Local timers allows the system
1617 accounting to be spread across the timer interval, preventing a
1618 "thundering herd" at every timer tick.
1619
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001620config ARCH_NR_GPIO
1621 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001622 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001623 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001624 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301625 default 512 if SOC_OMAP5
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001626 default 0
1627 help
1628 Maximum number of GPIOs in the system.
1629
1630 If unsure, leave the default value.
1631
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001632source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001633
Russell Kingf8065812006-03-02 22:41:59 +00001634config HZ
1635 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001636 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001637 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001638 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001639 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001640 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001641 default 100
1642
Catalin Marinas16c79652009-07-24 12:33:02 +01001643config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001644 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001645 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001646 select AEABI
1647 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001648 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001649 help
1650 By enabling this option, the kernel will be compiled in
1651 Thumb-2 mode. A compiler/assembler that understand the unified
1652 ARM-Thumb syntax is needed.
1653
1654 If unsure, say N.
1655
Dave Martin6f685c52011-03-03 11:41:12 +01001656config THUMB2_AVOID_R_ARM_THM_JUMP11
1657 bool "Work around buggy Thumb-2 short branch relocations in gas"
1658 depends on THUMB2_KERNEL && MODULES
1659 default y
1660 help
1661 Various binutils versions can resolve Thumb-2 branches to
1662 locally-defined, preemptible global symbols as short-range "b.n"
1663 branch instructions.
1664
1665 This is a problem, because there's no guarantee the final
1666 destination of the symbol, or any candidate locations for a
1667 trampoline, are within range of the branch. For this reason, the
1668 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1669 relocation in modules at all, and it makes little sense to add
1670 support.
1671
1672 The symptom is that the kernel fails with an "unsupported
1673 relocation" error when loading some modules.
1674
1675 Until fixed tools are available, passing
1676 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1677 code which hits this problem, at the cost of a bit of extra runtime
1678 stack usage in some cases.
1679
1680 The problem is described in more detail at:
1681 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1682
1683 Only Thumb-2 kernels are affected.
1684
1685 Unless you are sure your tools don't have this problem, say Y.
1686
Catalin Marinas0becb082009-07-24 12:32:53 +01001687config ARM_ASM_UNIFIED
1688 bool
1689
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001690config AEABI
1691 bool "Use the ARM EABI to compile the kernel"
1692 help
1693 This option allows for the kernel to be compiled using the latest
1694 ARM ABI (aka EABI). This is only useful if you are using a user
1695 space environment that is also compiled with EABI.
1696
1697 Since there are major incompatibilities between the legacy ABI and
1698 EABI, especially with regard to structure member alignment, this
1699 option also changes the kernel syscall calling convention to
1700 disambiguate both ABIs and allow for backward compatibility support
1701 (selected with CONFIG_OABI_COMPAT).
1702
1703 To use this you need GCC version 4.0.0 or later.
1704
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001705config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001706 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001707 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001708 default y
1709 help
1710 This option preserves the old syscall interface along with the
1711 new (ARM EABI) one. It also provides a compatibility layer to
1712 intercept syscalls that have structure arguments which layout
1713 in memory differs between the legacy ABI and the new ARM EABI
1714 (only for non "thumb" binaries). This option adds a tiny
1715 overhead to all syscalls and produces a slightly larger kernel.
1716 If you know you'll be using only pure EABI user space then you
1717 can say N here. If this option is not selected and you attempt
1718 to execute a legacy ABI binary then the result will be
1719 UNPREDICTABLE (in fact it can be predicted that it won't work
1720 at all). If in doubt say Y.
1721
Mel Gormaneb335752009-05-13 17:34:48 +01001722config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001723 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001724
Russell King05944d72006-11-30 20:43:51 +00001725config ARCH_SPARSEMEM_ENABLE
1726 bool
1727
Russell King07a2f732008-10-01 21:39:58 +01001728config ARCH_SPARSEMEM_DEFAULT
1729 def_bool ARCH_SPARSEMEM_ENABLE
1730
Russell King05944d72006-11-30 20:43:51 +00001731config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001732 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001733
Will Deacon7b7bf492011-05-19 13:21:14 +01001734config HAVE_ARCH_PFN_VALID
1735 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1736
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001737config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001738 bool "High Memory Support"
1739 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001740 help
1741 The address space of ARM processors is only 4 Gigabytes large
1742 and it has to accommodate user address space, kernel address
1743 space as well as some memory mapped IO. That means that, if you
1744 have a large amount of physical memory and/or IO, not all of the
1745 memory can be "permanently mapped" by the kernel. The physical
1746 memory that is not permanently mapped is called "high memory".
1747
1748 Depending on the selected kernel/user memory split, minimum
1749 vmalloc space and actual amount of RAM, you may not need this
1750 option which should result in a slightly faster kernel.
1751
1752 If unsure, say n.
1753
Russell King65cec8e2009-08-17 20:02:06 +01001754config HIGHPTE
1755 bool "Allocate 2nd-level pagetables from highmem"
1756 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001757
Jamie Iles1b8873a2010-02-02 20:25:44 +01001758config HW_PERF_EVENTS
1759 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001760 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001761 default y
1762 help
1763 Enable hardware performance counter support for perf events. If
1764 disabled, perf events will use software events only.
1765
Dave Hansen3f22ab22005-06-23 00:07:43 -07001766source "mm/Kconfig"
1767
Magnus Dammc1b2d972010-07-05 10:00:11 +01001768config FORCE_MAX_ZONEORDER
1769 int "Maximum zone order" if ARCH_SHMOBILE
1770 range 11 64 if ARCH_SHMOBILE
1771 default "9" if SA1111
1772 default "11"
1773 help
1774 The kernel memory allocator divides physically contiguous memory
1775 blocks into "zones", where each zone is a power of two number of
1776 pages. This option selects the largest power of two that the kernel
1777 keeps in the memory allocator. If you need to allocate very large
1778 blocks of physically contiguous memory, then you may need to
1779 increase this value.
1780
1781 This config option is actually maximum order plus one. For example,
1782 a value of 11 means that the largest free memory block is 2^10 pages.
1783
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784config LEDS
1785 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001786 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001787 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1789 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001790 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001791 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001792 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 help
1794 If you say Y here, the LEDs on your machine will be used
1795 to provide useful information about your current system status.
1796
1797 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1798 be able to select which LEDs are active using the options below. If
1799 you are compiling a kernel for the EBSA-110 or the LART however, the
1800 red LED will simply flash regularly to indicate that the system is
1801 still functional. It is safe to say Y here if you have a CATS
1802 system, but the driver will do nothing.
1803
1804config LEDS_TIMER
1805 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001806 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1807 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001809 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810 default y if ARCH_EBSA110
1811 help
1812 If you say Y here, one of the system LEDs (the green one on the
1813 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1814 will flash regularly to indicate that the system is still
1815 operational. This is mainly useful to kernel hackers who are
1816 debugging unstable kernels.
1817
1818 The LART uses the same LED for both Timer LED and CPU usage LED
1819 functions. You may choose to use both, but the Timer LED function
1820 will overrule the CPU usage LED.
1821
1822config LEDS_CPU
1823 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001824 !ARCH_OMAP) \
1825 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1826 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827 depends on LEDS
1828 help
1829 If you say Y here, the red LED will be used to give a good real
1830 time indication of CPU usage, by lighting whenever the idle task
1831 is not currently executing.
1832
1833 The LART uses the same LED for both Timer LED and CPU usage LED
1834 functions. You may choose to use both, but the Timer LED function
1835 will overrule the CPU usage LED.
1836
1837config ALIGNMENT_TRAP
1838 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001839 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001841 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001843 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1845 address divisible by 4. On 32-bit ARM processors, these non-aligned
1846 fetch/store instructions will be emulated in software if you say
1847 here, which has a severe performance impact. This is necessary for
1848 correct operation of some network protocols. With an IP-only
1849 configuration it is safe to say N, otherwise say Y.
1850
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001851config UACCESS_WITH_MEMCPY
1852 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1853 depends on MMU && EXPERIMENTAL
1854 default y if CPU_FEROCEON
1855 help
1856 Implement faster copy_to_user and clear_user methods for CPU
1857 cores where a 8-word STM instruction give significantly higher
1858 memory write throughput than a sequence of individual 32bit stores.
1859
1860 A possible side effect is a slight increase in scheduling latency
1861 between threads sharing the same address space if they invoke
1862 such copy operations with large buffers.
1863
1864 However, if the CPU data cache is using a write-allocate mode,
1865 this option is unlikely to provide any performance gain.
1866
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001867config SECCOMP
1868 bool
1869 prompt "Enable seccomp to safely compute untrusted bytecode"
1870 ---help---
1871 This kernel feature is useful for number crunching applications
1872 that may need to compute untrusted bytecode during their
1873 execution. By using pipes or other transports made available to
1874 the process as file descriptors supporting the read/write
1875 syscalls, it's possible to isolate those applications in
1876 their own address space using seccomp. Once seccomp is
1877 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1878 and the task is only allowed to execute a few safe syscalls
1879 defined by each seccomp mode.
1880
Nicolas Pitrec743f382010-05-24 23:55:42 -04001881config CC_STACKPROTECTOR
1882 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001883 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001884 help
1885 This option turns on the -fstack-protector GCC feature. This
1886 feature puts, at the beginning of functions, a canary value on
1887 the stack just before the return address, and validates
1888 the value just before actually returning. Stack based buffer
1889 overflows (that need to overwrite this return address) now also
1890 overwrite the canary, which gets detected and the attack is then
1891 neutralized via a kernel panic.
1892 This feature requires gcc version 4.2 or above.
1893
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001894config DEPRECATED_PARAM_STRUCT
1895 bool "Provide old way to pass kernel parameters"
1896 help
1897 This was deprecated in 2001 and announced to live on for 5 years.
1898 Some old boot loaders still use this way.
1899
Linus Torvalds1da177e2005-04-16 15:20:36 -07001900endmenu
1901
1902menu "Boot options"
1903
Grant Likely9eb8f672011-04-28 14:27:20 -06001904config USE_OF
1905 bool "Flattened Device Tree support"
1906 select OF
1907 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001908 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001909 help
1910 Include support for flattened device tree machine descriptions.
1911
Linus Torvalds1da177e2005-04-16 15:20:36 -07001912# Compressed boot loader in ROM. Yes, we really want to ask about
1913# TEXT and BSS so we preserve their values in the config files.
1914config ZBOOT_ROM_TEXT
1915 hex "Compressed ROM boot loader base address"
1916 default "0"
1917 help
1918 The physical address at which the ROM-able zImage is to be
1919 placed in the target. Platforms which normally make use of
1920 ROM-able zImage formats normally set this to a suitable
1921 value in their defconfig file.
1922
1923 If ZBOOT_ROM is not enabled, this has no effect.
1924
1925config ZBOOT_ROM_BSS
1926 hex "Compressed ROM boot loader BSS address"
1927 default "0"
1928 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001929 The base address of an area of read/write memory in the target
1930 for the ROM-able zImage which must be available while the
1931 decompressor is running. It must be large enough to hold the
1932 entire decompressed kernel plus an additional 128 KiB.
1933 Platforms which normally make use of ROM-able zImage formats
1934 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935
1936 If ZBOOT_ROM is not enabled, this has no effect.
1937
1938config ZBOOT_ROM
1939 bool "Compressed boot loader in ROM/flash"
1940 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1941 help
1942 Say Y here if you intend to execute your compressed kernel image
1943 (zImage) directly from ROM or flash. If unsure, say N.
1944
Simon Horman090ab3f2011-04-26 06:29:53 +01001945choice
1946 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1947 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1948 default ZBOOT_ROM_NONE
1949 help
1950 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001951 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001952 kernel image to an MMC or SD card and boot the kernel straight
1953 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001954 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001955 rest the kernel image to RAM.
1956
1957config ZBOOT_ROM_NONE
1958 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1959 help
1960 Do not load image from SD or MMC
1961
Simon Hormanf45b1142011-01-11 04:01:08 +01001962config ZBOOT_ROM_MMCIF
1963 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001964 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001965 Load image from MMCIF hardware block.
1966
1967config ZBOOT_ROM_SH_MOBILE_SDHI
1968 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1969 help
1970 Load image from SDHI hardware block
1971
1972endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001973
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001974config ARM_APPENDED_DTB
1975 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1976 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1977 help
1978 With this option, the boot code will look for a device tree binary
1979 (DTB) appended to zImage
1980 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1981
1982 This is meant as a backward compatibility convenience for those
1983 systems with a bootloader that can't be upgraded to accommodate
1984 the documented boot protocol using a device tree.
1985
1986 Beware that there is very little in terms of protection against
1987 this option being confused by leftover garbage in memory that might
1988 look like a DTB header after a reboot if no actual DTB is appended
1989 to zImage. Do not leave this option active in a production kernel
1990 if you don't intend to always append a DTB. Proper passing of the
1991 location into r2 of a bootloader provided DTB is always preferable
1992 to this option.
1993
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001994config ARM_ATAG_DTB_COMPAT
1995 bool "Supplement the appended DTB with traditional ATAG information"
1996 depends on ARM_APPENDED_DTB
1997 help
1998 Some old bootloaders can't be updated to a DTB capable one, yet
1999 they provide ATAGs with memory configuration, the ramdisk address,
2000 the kernel cmdline string, etc. Such information is dynamically
2001 provided by the bootloader and can't always be stored in a static
2002 DTB. To allow a device tree enabled kernel to be used with such
2003 bootloaders, this option allows zImage to extract the information
2004 from the ATAG list and store it at run time into the appended DTB.
2005
Genoud Richardd0f34a112012-06-26 16:37:59 +01002006choice
2007 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2008 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2009
2010config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2011 bool "Use bootloader kernel arguments if available"
2012 help
2013 Uses the command-line options passed by the boot loader instead of
2014 the device tree bootargs property. If the boot loader doesn't provide
2015 any, the device tree bootargs property will be used.
2016
2017config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2018 bool "Extend with bootloader kernel arguments"
2019 help
2020 The command-line arguments provided by the boot loader will be
2021 appended to the the device tree bootargs property.
2022
2023endchoice
2024
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025config CMDLINE
2026 string "Default kernel command string"
2027 default ""
2028 help
2029 On some architectures (EBSA110 and CATS), there is currently no way
2030 for the boot loader to pass arguments to the kernel. For these
2031 architectures, you should supply some command-line options at build
2032 time by entering them here. As a minimum, you should specify the
2033 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2034
Victor Boivie4394c122011-05-04 17:07:55 +01002035choice
2036 prompt "Kernel command line type" if CMDLINE != ""
2037 default CMDLINE_FROM_BOOTLOADER
2038
2039config CMDLINE_FROM_BOOTLOADER
2040 bool "Use bootloader kernel arguments if available"
2041 help
2042 Uses the command-line options passed by the boot loader. If
2043 the boot loader doesn't provide any, the default kernel command
2044 string provided in CMDLINE will be used.
2045
2046config CMDLINE_EXTEND
2047 bool "Extend bootloader kernel arguments"
2048 help
2049 The command-line arguments provided by the boot loader will be
2050 appended to the default kernel command string.
2051
Alexander Holler92d20402010-02-16 19:04:53 +01002052config CMDLINE_FORCE
2053 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002054 help
2055 Always use the default kernel command string, even if the boot
2056 loader passes other arguments to the kernel.
2057 This is useful if you cannot or don't want to change the
2058 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002059endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002060
Linus Torvalds1da177e2005-04-16 15:20:36 -07002061config XIP_KERNEL
2062 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002063 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064 help
2065 Execute-In-Place allows the kernel to run from non-volatile storage
2066 directly addressable by the CPU, such as NOR flash. This saves RAM
2067 space since the text section of the kernel is not loaded from flash
2068 to RAM. Read-write sections, such as the data section and stack,
2069 are still copied to RAM. The XIP kernel is not compressed since
2070 it has to run directly from flash, so it will take more space to
2071 store it. The flash address used to link the kernel object files,
2072 and for storing it, is configuration dependent. Therefore, if you
2073 say Y here, you must know the proper physical address where to
2074 store the kernel image depending on your own flash memory usage.
2075
2076 Also note that the make target becomes "make xipImage" rather than
2077 "make zImage" or "make Image". The final kernel binary to put in
2078 ROM memory will be arch/arm/boot/xipImage.
2079
2080 If unsure, say N.
2081
2082config XIP_PHYS_ADDR
2083 hex "XIP Kernel Physical Location"
2084 depends on XIP_KERNEL
2085 default "0x00080000"
2086 help
2087 This is the physical address in your flash memory the kernel will
2088 be linked for and stored to. This address is dependent on your
2089 own flash usage.
2090
Richard Purdiec587e4a2007-02-06 21:29:00 +01002091config KEXEC
2092 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002093 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002094 help
2095 kexec is a system call that implements the ability to shutdown your
2096 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002097 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002098 you can start any kernel with it, not just Linux.
2099
2100 It is an ongoing process to be certain the hardware in a machine
2101 is properly shutdown, so do not be surprised if this code does not
2102 initially work for you. It may help to enable device hotplugging
2103 support.
2104
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002105config ATAGS_PROC
2106 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002107 depends on KEXEC
2108 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002109 help
2110 Should the atags used to boot the kernel be exported in an "atags"
2111 file in procfs. Useful with kexec.
2112
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002113config CRASH_DUMP
2114 bool "Build kdump crash kernel (EXPERIMENTAL)"
2115 depends on EXPERIMENTAL
2116 help
2117 Generate crash dump after being started by kexec. This should
2118 be normally only set in special crash dump kernels which are
2119 loaded in the main kernel with kexec-tools into a specially
2120 reserved region and then later executed after a crash by
2121 kdump/kexec. The crash dump kernel must be compiled to a
2122 memory address not used by the main kernel
2123
2124 For more details see Documentation/kdump/kdump.txt
2125
Eric Miaoe69edc792010-07-05 15:56:50 +02002126config AUTO_ZRELADDR
2127 bool "Auto calculation of the decompressed kernel image address"
2128 depends on !ZBOOT_ROM && !ARCH_U300
2129 help
2130 ZRELADDR is the physical address where the decompressed kernel
2131 image will be placed. If AUTO_ZRELADDR is selected, the address
2132 will be determined at run-time by masking the current IP with
2133 0xf8000000. This assumes the zImage being placed in the first 128MB
2134 from start of memory.
2135
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136endmenu
2137
Russell Kingac9d7ef2008-08-18 17:26:00 +01002138menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002139
Ben Dooks89c52ed2009-07-30 23:23:24 +01002140if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141
2142source "drivers/cpufreq/Kconfig"
2143
Yong Shen64f102b2010-10-21 21:18:59 +08002144config CPU_FREQ_IMX
2145 tristate "CPUfreq driver for i.MX CPUs"
2146 depends on ARCH_MXC && CPU_FREQ
2147 help
2148 This enables the CPUfreq driver for i.MX CPUs.
2149
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150config CPU_FREQ_SA1100
2151 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152
2153config CPU_FREQ_SA1110
2154 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155
2156config CPU_FREQ_INTEGRATOR
2157 tristate "CPUfreq driver for ARM Integrator CPUs"
2158 depends on ARCH_INTEGRATOR && CPU_FREQ
2159 default y
2160 help
2161 This enables the CPUfreq driver for ARM Integrator CPUs.
2162
2163 For details, take a look at <file:Documentation/cpu-freq>.
2164
2165 If in doubt, say Y.
2166
Russell King9e2697f2007-12-14 13:30:14 +00002167config CPU_FREQ_PXA
2168 bool
2169 depends on CPU_FREQ && ARCH_PXA && PXA25x
2170 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002171 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002172 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2173
Ben Dooks9d56c022009-07-30 23:23:25 +01002174config CPU_FREQ_S3C
2175 bool
2176 help
2177 Internal configuration node for common cpufreq on Samsung SoC
2178
2179config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002180 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002181 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002182 select CPU_FREQ_S3C
2183 help
2184 This enables the CPUfreq driver for the Samsung S3C24XX family
2185 of CPUs.
2186
2187 For details, take a look at <file:Documentation/cpu-freq>.
2188
2189 If in doubt, say N.
2190
2191config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002192 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002193 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2194 help
2195 Compile in support for changing the PLL frequency from the
2196 S3C24XX series CPUfreq driver. The PLL takes time to settle
2197 after a frequency change, so by default it is not enabled.
2198
2199 This also means that the PLL tables for the selected CPU(s) will
2200 be built which may increase the size of the kernel image.
2201
2202config CPU_FREQ_S3C24XX_DEBUG
2203 bool "Debug CPUfreq Samsung driver core"
2204 depends on CPU_FREQ_S3C24XX
2205 help
2206 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2207
2208config CPU_FREQ_S3C24XX_IODEBUG
2209 bool "Debug CPUfreq Samsung driver IO timing"
2210 depends on CPU_FREQ_S3C24XX
2211 help
2212 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2213
Ben Dookse6d197a2009-07-30 23:23:42 +01002214config CPU_FREQ_S3C24XX_DEBUGFS
2215 bool "Export debugfs for CPUFreq"
2216 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2217 help
2218 Export status information via debugfs.
2219
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220endif
2221
Russell Kingac9d7ef2008-08-18 17:26:00 +01002222source "drivers/cpuidle/Kconfig"
2223
2224endmenu
2225
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226menu "Floating point emulation"
2227
2228comment "At least one emulation must be selected"
2229
2230config FPE_NWFPE
2231 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002232 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233 ---help---
2234 Say Y to include the NWFPE floating point emulator in the kernel.
2235 This is necessary to run most binaries. Linux does not currently
2236 support floating point hardware so you need to say Y here even if
2237 your machine has an FPA or floating point co-processor podule.
2238
2239 You may say N here if you are going to load the Acorn FPEmulator
2240 early in the bootup.
2241
2242config FPE_NWFPE_XP
2243 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002244 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002245 help
2246 Say Y to include 80-bit support in the kernel floating-point
2247 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2248 Note that gcc does not generate 80-bit operations by default,
2249 so in most cases this option only enlarges the size of the
2250 floating point emulator without any good reason.
2251
2252 You almost surely want to say N here.
2253
2254config FPE_FASTFPE
2255 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002256 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257 ---help---
2258 Say Y here to include the FAST floating point emulator in the kernel.
2259 This is an experimental much faster emulator which now also has full
2260 precision for the mantissa. It does not support any exceptions.
2261 It is very simple, and approximately 3-6 times faster than NWFPE.
2262
2263 It should be sufficient for most programs. It may be not suitable
2264 for scientific calculations, but you have to check this for yourself.
2265 If you do not feel you need a faster FP emulation you should better
2266 choose NWFPE.
2267
2268config VFP
2269 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002270 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271 help
2272 Say Y to include VFP support code in the kernel. This is needed
2273 if your hardware includes a VFP unit.
2274
2275 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2276 release notes and additional status information.
2277
2278 Say N if your target does not have VFP hardware.
2279
Catalin Marinas25ebee02007-09-25 15:22:24 +01002280config VFPv3
2281 bool
2282 depends on VFP
2283 default y if CPU_V7
2284
Catalin Marinasb5872db2008-01-10 19:16:17 +01002285config NEON
2286 bool "Advanced SIMD (NEON) Extension support"
2287 depends on VFPv3 && CPU_V7
2288 help
2289 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2290 Extension.
2291
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292endmenu
2293
2294menu "Userspace binary formats"
2295
2296source "fs/Kconfig.binfmt"
2297
2298config ARTHUR
2299 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002300 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301 help
2302 Say Y here to include the kernel code necessary if you want to run
2303 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2304 experimental; if this sounds frightening, say N and sleep in peace.
2305 You can also say M here to compile this support as a module (which
2306 will be called arthur).
2307
2308endmenu
2309
2310menu "Power management options"
2311
Russell Kingeceab4a2005-11-15 11:31:41 +00002312source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002313
Johannes Bergf4cb5702007-12-08 02:14:00 +01002314config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002315 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002316 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002317 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002318 def_bool y
2319
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002320config ARM_CPU_SUSPEND
2321 def_bool PM_SLEEP
2322
Linus Torvalds1da177e2005-04-16 15:20:36 -07002323endmenu
2324
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002325source "net/Kconfig"
2326
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002327source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002328
2329source "fs/Kconfig"
2330
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331source "arch/arm/Kconfig.debug"
2332
2333source "security/Kconfig"
2334
2335source "crypto/Kconfig"
2336
2337source "lib/Kconfig"