blob: 93180845ae164dbeeca41a27dfce6fda553bcb3d [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010012 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060013 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010014 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080015 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040016 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010017 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
18 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053019 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080020 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010024 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010025 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080026 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010027 select HAVE_PERF_EVENTS
28 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010029 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000030 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010031 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010032 select HAVE_GENERIC_HARDIRQS
Thomas Gleixner25a56622011-03-24 12:02:11 +010033 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053034 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020035 select GENERIC_PCI_IOMAP
Russell Kingfada8dc2012-03-27 10:44:23 +010036 select HAVE_BPF_JIT if NET
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 help
38 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000039 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000041 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 Europe. There is an ARM Linux project with a web page at
43 <http://www.arm.linux.org.uk/>.
44
Russell King74facff2011-06-02 11:16:22 +010045config ARM_HAS_SG_CHAIN
46 bool
47
Russell King1a189b92008-04-13 21:41:55 +010048config HAVE_PWM
49 bool
50
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010051config MIGHT_HAVE_PCI
52 bool
53
Ralf Baechle75e71532007-02-09 17:08:58 +000054config SYS_SUPPORTS_APM_EMULATION
55 bool
56
David Brownell0a938b92007-03-05 00:30:18 -080057config GENERIC_GPIO
58 bool
David Brownell0a938b92007-03-05 00:30:18 -080059
John Stultz5cfc8ee2010-03-24 00:22:36 +000060config ARCH_USES_GETTIMEOFFSET
61 bool
62 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010063
Kevin Hilman0567a0c2007-03-13 20:29:24 +010064config GENERIC_CLOCKEVENTS
65 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010066
Catalin Marinasa8655e82008-02-04 17:30:57 +010067config GENERIC_CLOCKEVENTS_BROADCAST
68 bool
69 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010070 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010071
Rob Herringbf9dd362011-03-04 23:51:59 +010072config KTIME_SCALAR
73 bool
74 default y
75
Linus Walleijbc581772009-09-15 17:30:37 +010076config HAVE_TCM
77 bool
78 select GENERIC_ALLOCATOR
79
Russell Kinge119bff2010-01-10 17:23:29 +000080config HAVE_PROC_CPU
81 bool
82
Al Viro5ea81762007-02-11 15:41:31 +000083config NO_IOPORT
84 bool
Al Viro5ea81762007-02-11 15:41:31 +000085
Linus Torvalds1da177e2005-04-16 15:20:36 -070086config EISA
87 bool
88 ---help---
89 The Extended Industry Standard Architecture (EISA) bus was
90 developed as an open alternative to the IBM MicroChannel bus.
91
92 The EISA bus provided some of the features of the IBM MicroChannel
93 bus while maintaining backward compatibility with cards made for
94 the older ISA bus. The EISA bus saw limited use between 1988 and
95 1995 when it was made obsolete by the PCI bus.
96
97 Say Y here if you are building a kernel for an EISA-based machine.
98
99 Otherwise, say N.
100
101config SBUS
102 bool
103
104config MCA
105 bool
106 help
107 MicroChannel Architecture is found in some IBM PS/2 machines and
108 laptops. It is a bus system similar to PCI or ISA. See
109 <file:Documentation/mca.txt> (and especially the web page given
110 there) before attempting to build an MCA bus kernel.
111
Russell Kingf16fb1e2007-04-28 09:59:37 +0100112config STACKTRACE_SUPPORT
113 bool
114 default y
115
Nicolas Pitref76e9152008-04-24 01:31:46 -0400116config HAVE_LATENCYTOP_SUPPORT
117 bool
118 depends on !SMP
119 default y
120
Russell Kingf16fb1e2007-04-28 09:59:37 +0100121config LOCKDEP_SUPPORT
122 bool
123 default y
124
Russell King7ad1bcb2006-08-27 12:07:02 +0100125config TRACE_IRQFLAGS_SUPPORT
126 bool
127 default y
128
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100129config HARDIRQS_SW_RESEND
130 bool
131 default y
132
133config GENERIC_IRQ_PROBE
134 bool
135 default y
136
Nick Piggin95c354f2008-01-30 13:31:20 +0100137config GENERIC_LOCKBREAK
138 bool
139 default y
140 depends on SMP && PREEMPT
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142config RWSEM_GENERIC_SPINLOCK
143 bool
144 default y
145
146config RWSEM_XCHGADD_ALGORITHM
147 bool
148
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149config ARCH_HAS_ILOG2_U32
150 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800151
152config ARCH_HAS_ILOG2_U64
153 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800154
Ben Dooks89c52ed2009-07-30 23:23:24 +0100155config ARCH_HAS_CPUFREQ
156 bool
157 help
158 Internal node to signify that the ARCH has CPUFREQ support
159 and that the relevant menu configurations are displayed for
160 it.
161
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100162config ARCH_HAS_CPU_IDLE_WAIT
163 def_bool y
164
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800165config GENERIC_HWEIGHT
166 bool
167 default y
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config GENERIC_CALIBRATE_DELAY
170 bool
171 default y
172
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100173config ARCH_MAY_HAVE_PC_FDC
174 bool
175
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800176config ZONE_DMA
177 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800178
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800179config NEED_DMA_MAP_STATE
180 def_bool y
181
Rob Herring58af4a22012-03-20 14:33:01 -0500182config ARCH_HAS_DMA_SET_COHERENT_MASK
183 bool
184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185config GENERIC_ISA_DMA
186 bool
187
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188config FIQ
189 bool
190
Rob Herring13a50452012-02-07 09:28:22 -0600191config NEED_RET_TO_USER
192 bool
193
Al Viro034d2f52005-12-19 16:27:59 -0500194config ARCH_MTD_XIP
195 bool
196
Hyok S. Choic760fc12006-03-27 15:18:50 +0100197config VECTORS_BASE
198 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900199 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100200 default DRAM_BASE if REMAP_VECTORS_TO_RAM
201 default 0x00000000
202 help
203 The base address of exception vectors.
204
Russell Kingdc21af92011-01-04 19:09:43 +0000205config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100206 bool "Patch physical to virtual translations at runtime" if EMBEDDED
207 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100208 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000209 depends on !ARCH_REALVIEW || !SPARSEMEM
210 help
Russell King111e9a52011-05-12 10:02:42 +0100211 Patch phys-to-virt and virt-to-phys translation functions at
212 boot and module load time according to the position of the
213 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000214
Russell King111e9a52011-05-12 10:02:42 +0100215 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100216 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000217
Russell Kingc1beced2011-08-10 10:23:45 +0100218 Only disable this option if you know that you do not require
219 this feature (eg, building a kernel for a single machine) and
220 you need to shrink the kernel to the minimal size.
221
Rob Herringc334bc12012-03-04 22:03:33 -0600222config NEED_MACH_IO_H
223 bool
224 help
225 Select this when mach/io.h is required to provide special
226 definitions for this platform. The need for mach/io.h should
227 be avoided when possible.
228
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400229config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400230 bool
Russell King111e9a52011-05-12 10:02:42 +0100231 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400232 Select this when mach/memory.h is required to provide special
233 definitions for this platform. The need for mach/memory.h should
234 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400235
236config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100237 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400238 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100239 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400240 help
241 Please provide the physical address corresponding to the
242 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000243
Simon Glass87e040b2011-08-16 23:44:26 +0100244config GENERIC_BUG
245 def_bool y
246 depends on BUG
247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248source "init/Kconfig"
249
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700250source "kernel/Kconfig.freezer"
251
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252menu "System Type"
253
Hyok S. Choi3c427972009-07-24 12:35:00 +0100254config MMU
255 bool "MMU-based Paged Memory Management Support"
256 default y
257 help
258 Select if you want MMU-based virtualised addressing space
259 support by paged memory management. If unsure, say 'Y'.
260
Russell Kingccf50e22010-03-15 19:03:06 +0000261#
262# The "ARM system type" choice list is ordered alphabetically by option
263# text. Please add new entries in the option alphabetic order.
264#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265choice
266 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000267 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269config ARCH_INTEGRATOR
270 bool "ARM Ltd. Integrator family"
271 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100272 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100273 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900274 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100275 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000276 select ICST
Russell King13edd862010-01-15 21:49:23 +0000277 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000278 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000279 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600280 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400281 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100282 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100283 help
284 Support for ARM's Integrator platform.
285
286config ARCH_REALVIEW
287 bool "ARM Ltd. RealView family"
288 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100289 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900290 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000291 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100292 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100293 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000294 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000295 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000296 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100297 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400298 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 help
300 This enables support for ARM Ltd RealView boards.
301
302config ARCH_VERSATILE
303 bool "ARM Ltd. Versatile family"
304 select ARM_AMBA
305 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100306 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900307 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000308 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100309 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100310 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000311 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000312 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000313 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000314 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100315 help
316 This enables support for ARM Ltd Versatile board.
317
Russell Kingceade892010-02-11 21:44:53 +0000318config ARCH_VEXPRESS
319 bool "ARM Ltd. Versatile Express family"
320 select ARCH_WANT_OPTIONAL_GPIOLIB
321 select ARM_AMBA
322 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100323 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900324 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000325 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000326 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100327 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000328 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000329 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000330 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000331 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000332 help
333 This enables support for the ARM Ltd Versatile Express boards.
334
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100335config ARCH_AT91
336 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100337 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700338 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100339 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100340 select IRQ_DOMAIN
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100341 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100342 This enables support for systems based on the Atmel AT91RM9200,
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100343 AT91SAM9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100344
Russell Kingccf50e22010-03-15 19:03:06 +0000345config ARCH_BCMRING
346 bool "Broadcom BCMRING"
347 depends on MMU
348 select CPU_V6
349 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100350 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100351 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000352 select GENERIC_CLOCKEVENTS
353 select ARCH_WANT_OPTIONAL_GPIOLIB
354 help
355 Support for Broadcom's BCMRing platform.
356
Rob Herring220e6cf2011-06-07 10:02:55 -0500357config ARCH_HIGHBANK
358 bool "Calxeda Highbank-based"
359 select ARCH_WANT_OPTIONAL_GPIOLIB
360 select ARM_AMBA
361 select ARM_GIC
362 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000363 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500364 select CLKDEV_LOOKUP
365 select CPU_V7
366 select GENERIC_CLOCKEVENTS
367 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000368 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600369 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500370 select USE_OF
371 help
372 Support for the Calxeda Highbank SoC based boards.
373
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000376 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000377 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400378 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000379 help
380 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300382config ARCH_CNS3XXX
383 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200384 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300385 select GENERIC_CLOCKEVENTS
386 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000387 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100388 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400389 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300390 help
391 Support for Cavium Networks CNS3XXX platform.
392
Russell King788c9702009-04-26 14:21:59 +0100393config ARCH_GEMINI
394 bool "Cortina Systems Gemini"
395 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100396 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000397 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100398 help
399 Support for the Cortina Systems Gemini family SoCs
400
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200401config ARCH_PRIMA2
402 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
403 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200404 select NO_IOPORT
405 select GENERIC_CLOCKEVENTS
406 select CLKDEV_LOOKUP
407 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000408 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200409 select USE_OF
410 select ZONE_DMA
411 help
412 Support for CSR SiRFSoC ARM Cortex A9 Platform
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414config ARCH_EBSA110
415 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100417 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000418 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000419 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600420 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400421 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 help
423 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000424 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 Ethernet interface, two PCMCIA sockets, two serial ports and a
426 parallel port.
427
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000428config ARCH_EP93XX
429 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000430 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000431 select ARM_AMBA
432 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100433 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700434 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100435 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000436 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100437 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000438 help
439 This enables support for the Cirrus EP93xx series of CPUs.
440
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441config ARCH_FOOTBRIDGE
442 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000443 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000445 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200446 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600447 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400448 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000449 help
450 Support for systems based on the DC21285 companion chip
451 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
Russell King788c9702009-04-26 14:21:59 +0100453config ARCH_MXC
454 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100455 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100456 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100457 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100458 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800459 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200460 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100461 help
462 Support for Freescale MXC/iMX-based family of processors
463
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800464config ARCH_MXS
465 bool "Freescale MXS-based"
466 select GENERIC_CLOCKEVENTS
467 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100468 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100469 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800470 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800471 help
472 Support for Freescale MXS-based family of processors
473
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100474config ARCH_NETX
475 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100476 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000477 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100478 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100479 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000480 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100481 This enables support for systems based on the Hilscher NetX Soc
482
483config ARCH_H720X
484 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100486 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000487 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100488 help
489 This enables support for systems based on the Hynix HMS720x
490
Russell King3b938be2007-05-12 11:25:44 +0100491config ARCH_IOP13XX
492 bool "IOP13xx-based"
493 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000494 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100495 select PLAT_IOP
496 select PCI
497 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100498 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600499 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400500 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600501 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100502 help
503 Support for Intel's IOP13XX (XScale) family of processors.
504
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100505config ARCH_IOP32X
506 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100507 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000508 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600509 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600510 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100511 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100512 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100513 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000514 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100515 Support for Intel's 80219 and IOP32X (XScale) family of
516 processors.
517
518config ARCH_IOP33X
519 bool "IOP33x-based"
520 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000521 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600522 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600523 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100524 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100525 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100526 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100527 help
528 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529
Russell King3b938be2007-05-12 11:25:44 +0100530config ARCH_IXP23XX
531 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100532 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000533 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100534 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000535 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600536 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400537 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100538 help
Russell King3b938be2007-05-12 11:25:44 +0100539 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540
541config ARCH_IXP2000
542 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100543 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000544 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100545 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000546 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600547 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400548 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000549 help
550 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
Russell King3b938be2007-05-12 11:25:44 +0100552config ARCH_IXP4XX
553 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100554 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500555 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100556 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000557 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100558 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100559 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100560 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600561 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100562 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100563 help
Russell King3b938be2007-05-12 11:25:44 +0100564 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100565
Saeed Bisharaedabd382009-08-06 15:12:43 +0300566config ARCH_DOVE
567 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300568 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300569 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300570 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300571 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600572 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300573 select PLAT_ORION
574 help
575 Support for the Marvell Dove SoC 88AP510
576
Saeed Bishara651c74c2008-06-22 22:45:06 +0200577config ARCH_KIRKWOOD
578 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000579 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200580 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700581 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200582 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600583 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200584 select PLAT_ORION
585 help
586 Support for the following Marvell Kirkwood series SoCs:
587 88F6180, 88F6192 and 88F6281.
588
Kevin Wells40805942010-07-27 08:49:04 -0700589config ARCH_LPC32XX
590 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100591 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700592 select CPU_ARM926T
593 select ARCH_REQUIRE_GPIOLIB
594 select HAVE_IDE
595 select ARM_AMBA
596 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100597 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700598 select GENERIC_CLOCKEVENTS
599 help
600 Support for the NXP LPC32XX family of processors
601
Russell King788c9702009-04-26 14:21:59 +0100602config ARCH_MV78XX0
603 bool "Marvell MV78xx0"
604 select CPU_FEROCEON
605 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700606 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100607 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600608 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100609 select PLAT_ORION
610 help
611 Support for the following Marvell MV78xx0 series SoCs:
612 MV781x0, MV782x0.
613
614config ARCH_ORION5X
615 bool "Marvell Orion"
616 depends on MMU
617 select CPU_FEROCEON
618 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700619 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100620 select GENERIC_CLOCKEVENTS
621 select PLAT_ORION
622 help
623 Support for the following Marvell Orion 5x series SoCs:
624 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
625 Orion-2 (5281), Orion-1-90 (6183).
626
627config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500628 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100629 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100630 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100631 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100632 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800633 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100634 select TICK_ONESHOT
635 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400636 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800637 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100638 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500639 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100640
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100641config ARCH_KS8695
642 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000643 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100644 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000645 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400646 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100647 help
648 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
649 System-on-Chip devices.
650
Russell King788c9702009-04-26 14:21:59 +0100651config ARCH_W90X900
652 bool "Nuvoton W90X900 CPU"
653 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100654 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100655 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100656 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100657 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200658 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100659 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
660 At present, the w90x900 has been renamed nuc900, regarding
661 the ARM series product line, you can login the following
662 link address to know more.
663
664 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
665 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400666
Erik Gillingc5f80062010-01-21 16:53:02 -0800667config ARCH_TEGRA
668 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000669 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100670 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800671 select GENERIC_CLOCKEVENTS
672 select GENERIC_GPIO
673 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000674 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000675 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600676 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700677 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800678 help
679 This enables support for NVIDIA Tegra based systems (Tegra APX,
680 Tegra 6xx and Tegra 2 series).
681
Jamie Ilesaf756552011-07-25 17:36:42 +0100682config ARCH_PICOXCELL
683 bool "Picochip picoXcell"
684 select ARCH_REQUIRE_GPIOLIB
685 select ARM_PATCH_PHYS_VIRT
686 select ARM_VIC
687 select CPU_V6K
688 select DW_APB_TIMER
689 select GENERIC_CLOCKEVENTS
690 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100691 select HAVE_TCM
692 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000693 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100694 select USE_OF
695 help
696 This enables support for systems based on the Picochip picoXcell
697 family of Femtocell devices. The picoxcell support requires device tree
698 for all boards.
699
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100700config ARCH_PNX4008
701 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000702 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100703 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000704 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100705 help
706 This enables support for Philips PNX4008 mobile platform.
707
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700709 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100710 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500711 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100712 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100713 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100714 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700715 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100716 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800717 select GPIO_PXA
Russell Kinga88264c2007-11-12 22:45:16 +0000718 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800719 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800720 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800721 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800722 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200723 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200724 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000725 help
eric miao2c8086a2007-09-11 19:13:17 -0700726 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727
Russell King788c9702009-04-26 14:21:59 +0100728config ARCH_MSM
729 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500730 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800731 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700732 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800733 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800734 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800735 Support for Qualcomm MSM/QSD based systems. This runs on the
736 apps processor of the MSM/QSD and depends on a shared memory
737 interface to the modem processor which runs the baseband
738 stack and controls some vital subsystems
739 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800740
Magnus Dammc793c1b2010-02-05 11:14:49 +0000741config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900742 bool "Renesas SH-Mobile / R-Mobile"
743 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900744 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900745 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000746 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900747 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000748 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900749 select NO_IOPORT
750 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000751 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200752 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400753 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000754 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900755 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000756
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757config ARCH_RPC
758 bool "RiscPC"
759 select ARCH_ACORN
760 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100761 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100762 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000763 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000764 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100765 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000766 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200767 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600768 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400769 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 help
771 On the Acorn Risc-PC, Linux can support the internal IDE disk and
772 CD-ROM interface, serial and parallel port, and the floppy drive.
773
774config ARCH_SA1100
775 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100776 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000777 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100778 select ISA
Russell King05944d72006-11-30 20:43:51 +0000779 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500780 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100781 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000782 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100783 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800784 select CLKDEV_LOOKUP
Russell King3e238be2008-04-14 23:03:10 +0100785 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700786 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200787 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400788 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100789 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000790 help
791 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900793config ARCH_S3C24XX
794 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800795 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100796 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700797 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900798 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000799 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900800 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900801 select HAVE_S3C_RTC if RTC_CLASS
802 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600803 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900805 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
806 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
807 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
808 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900809
Ben Dooksa08ab632008-10-21 14:06:39 +0100810config ARCH_S3C64XX
811 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000812 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900813 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900814 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100815 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900816 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900817 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900818 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000819 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100820 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900821 select ARCH_REQUIRE_GPIOLIB
822 select SAMSUNG_CLKSRC
823 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900824 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900825 select S3C_DEV_NAND
826 select USB_ARCH_HAS_OHCI
827 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900828 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900829 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100830 help
831 Samsung S3C64XX series based systems
832
Kukjin Kim49b7a492010-09-07 15:47:18 +0900833config ARCH_S5P64X0
834 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900835 select CPU_V6
836 select GENERIC_GPIO
837 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900838 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900839 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900840 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900841 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900842 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900843 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900844 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900845 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
846 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900847
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200848config ARCH_S5PC100
849 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900850 select GENERIC_GPIO
851 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900852 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900853 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900854 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900855 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900856 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900857 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900858 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200859 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900860
Kukjin Kim170f4e42010-02-24 16:40:44 +0900861config ARCH_S5PV210
862 bool "Samsung S5PV210/S5PC110"
863 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900864 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900865 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900866 select GENERIC_GPIO
867 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900868 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900869 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900870 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900871 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900872 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900873 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900874 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400875 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900876 help
877 Samsung S5PV210/S5PC110 series based systems
878
Kukjin Kim83014572011-11-06 13:54:56 +0900879config ARCH_EXYNOS
880 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900881 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900882 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900883 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900884 select GENERIC_GPIO
885 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900886 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900887 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900888 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900889 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900890 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900891 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400892 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900893 help
Kukjin Kim83014572011-11-06 13:54:56 +0900894 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900895
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896config ARCH_SHARK
897 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000898 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100899 select ISA
900 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100901 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100902 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000903 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400904 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600905 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000906 help
907 Support for the StrongARM based Digital DNARD machine, also known
908 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700909
Linus Walleijd98aac72009-04-27 10:21:46 +0100910config ARCH_U300
911 bool "ST-Ericsson U300 Series"
912 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100913 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100914 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100915 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100916 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200917 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100918 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100919 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100920 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900921 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100922 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100923 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100924 help
925 Support for ST-Ericsson U300 series mobile platforms.
926
Russell Kingccf50e22010-03-15 19:03:06 +0000927config ARCH_U8500
928 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700929 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000930 select CPU_V7
931 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000932 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100933 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100934 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100935 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000936 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000937 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000938 help
939 Support for ST-Ericsson's Ux500 architecture
940
941config ARCH_NOMADIK
942 bool "STMicroelectronics Nomadik"
943 select ARM_AMBA
944 select ARM_VIC
945 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100946 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000947 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000948 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000949 select ARCH_REQUIRE_GPIOLIB
950 help
951 Support for the Nomadik platform by ST-Ericsson
952
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100953config ARCH_DAVINCI
954 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100955 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700956 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100957 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700958 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100959 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700960 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100961 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530962 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100963 help
964 Support for TI's DaVinci platform.
965
Russell King3b938be2007-05-12 11:25:44 +0100966config ARCH_OMAP
967 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700968 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700969 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100970 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700971 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700972 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800973 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100974 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200975 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100976
viresh kumarcee37e52010-04-01 12:31:05 +0100977config PLAT_SPEAR
978 bool "ST SPEAr"
979 select ARM_AMBA
980 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100981 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100982 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100983 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100984 select HAVE_CLK
985 help
986 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
987
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100988config ARCH_VT8500
989 bool "VIA/WonderMedia 85xx"
990 select CPU_ARM926T
991 select GENERIC_GPIO
992 select ARCH_HAS_CPUFREQ
993 select GENERIC_CLOCKEVENTS
994 select ARCH_REQUIRE_GPIOLIB
995 select HAVE_PWM
996 help
997 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800998
John Linnb85a3ef2011-06-20 11:47:27 -0600999config ARCH_ZYNQ
1000 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001001 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001002 select GENERIC_CLOCKEVENTS
1003 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001004 select ARM_GIC
1005 select ARM_AMBA
1006 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001007 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001008 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001009 help
John Linnb85a3ef2011-06-20 11:47:27 -06001010 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011endchoice
1012
Russell Kingccf50e22010-03-15 19:03:06 +00001013#
1014# This is sorted alphabetically by mach-* pathname. However, plat-*
1015# Kconfigs may be included either alphabetically (according to the
1016# plat- suffix) or along side the corresponding mach-* source.
1017#
Russell King95b8f202010-01-14 11:43:54 +00001018source "arch/arm/mach-at91/Kconfig"
1019
1020source "arch/arm/mach-bcmring/Kconfig"
1021
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022source "arch/arm/mach-clps711x/Kconfig"
1023
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001024source "arch/arm/mach-cns3xxx/Kconfig"
1025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-davinci/Kconfig"
1027
1028source "arch/arm/mach-dove/Kconfig"
1029
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001030source "arch/arm/mach-ep93xx/Kconfig"
1031
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032source "arch/arm/mach-footbridge/Kconfig"
1033
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001034source "arch/arm/mach-gemini/Kconfig"
1035
Russell King95b8f202010-01-14 11:43:54 +00001036source "arch/arm/mach-h720x/Kconfig"
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038source "arch/arm/mach-integrator/Kconfig"
1039
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001040source "arch/arm/mach-iop32x/Kconfig"
1041
1042source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
Dan Williams285f5fa2006-12-07 02:59:39 +01001044source "arch/arm/mach-iop13xx/Kconfig"
1045
Linus Torvalds1da177e2005-04-16 15:20:36 -07001046source "arch/arm/mach-ixp4xx/Kconfig"
1047
1048source "arch/arm/mach-ixp2000/Kconfig"
1049
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001050source "arch/arm/mach-ixp23xx/Kconfig"
1051
Russell King95b8f202010-01-14 11:43:54 +00001052source "arch/arm/mach-kirkwood/Kconfig"
1053
1054source "arch/arm/mach-ks8695/Kconfig"
1055
Kevin Wells40805942010-07-27 08:49:04 -07001056source "arch/arm/mach-lpc32xx/Kconfig"
1057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/mach-msm/Kconfig"
1059
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001060source "arch/arm/mach-mv78xx0/Kconfig"
1061
Russell King95b8f202010-01-14 11:43:54 +00001062source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001064source "arch/arm/mach-mxs/Kconfig"
1065
Russell King95b8f202010-01-14 11:43:54 +00001066source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001067
Russell King95b8f202010-01-14 11:43:54 +00001068source "arch/arm/mach-nomadik/Kconfig"
1069source "arch/arm/plat-nomadik/Kconfig"
1070
Tony Lindgrend48af152005-07-10 19:58:17 +01001071source "arch/arm/plat-omap/Kconfig"
1072
1073source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074
Tony Lindgren1dbae812005-11-10 14:26:51 +00001075source "arch/arm/mach-omap2/Kconfig"
1076
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001077source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001078
Russell King95b8f202010-01-14 11:43:54 +00001079source "arch/arm/mach-pxa/Kconfig"
1080source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-mmp/Kconfig"
1083
1084source "arch/arm/mach-realview/Kconfig"
1085
1086source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001087
Ben Dookscf383672009-11-10 00:14:58 +00001088source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001089source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001090source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001091
viresh kumarcee37e52010-04-01 12:31:05 +01001092source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001093
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001094source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001095if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001096source "arch/arm/mach-s3c2412/Kconfig"
1097source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001098endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099
Ben Dooksa08ab632008-10-21 14:06:39 +01001100if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001101source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001102endif
1103
Kukjin Kim49b7a492010-09-07 15:47:18 +09001104source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001105
Byungho Min5a7652f2009-06-23 21:39:42 +09001106source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001107
Kukjin Kim170f4e42010-02-24 16:40:44 +09001108source "arch/arm/mach-s5pv210/Kconfig"
1109
Kukjin Kim83014572011-11-06 13:54:56 +09001110source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001111
Russell King882d01f2010-03-02 23:40:15 +00001112source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113
Erik Gillingc5f80062010-01-21 16:53:02 -08001114source "arch/arm/mach-tegra/Kconfig"
1115
Russell King95b8f202010-01-14 11:43:54 +00001116source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117
Russell King95b8f202010-01-14 11:43:54 +00001118source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119
1120source "arch/arm/mach-versatile/Kconfig"
1121
Russell Kingceade892010-02-11 21:44:53 +00001122source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001123source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001124
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001125source "arch/arm/mach-vt8500/Kconfig"
1126
wanzongshun7ec80dd2008-12-03 03:55:38 +01001127source "arch/arm/mach-w90x900/Kconfig"
1128
Linus Torvalds1da177e2005-04-16 15:20:36 -07001129# Definitions to make life easier
1130config ARCH_ACORN
1131 bool
1132
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001133config PLAT_IOP
1134 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001135 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001136
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001137config PLAT_ORION
1138 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001139 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001140 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001141
Eric Miaobd5ce432009-01-20 12:06:01 +08001142config PLAT_PXA
1143 bool
1144
Russell Kingf4b8b312010-01-14 12:48:06 +00001145config PLAT_VERSATILE
1146 bool
1147
Russell Kinge3887712010-01-14 13:30:16 +00001148config ARM_TIMER_SP804
1149 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001150 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001151 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001152
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153source arch/arm/mm/Kconfig
1154
Russell King958cab02011-12-11 10:04:00 +00001155config ARM_NR_BANKS
1156 int
1157 default 16 if ARCH_EP93XX
1158 default 8
1159
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001160config IWMMXT
1161 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001162 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1163 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001164 help
1165 Enable support for iWMMXt context switching at run time if
1166 running on a CPU that supports it.
1167
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168config XSCALE_PMU
1169 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001170 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171 default y
1172
Jamie Iles0f4f0672010-02-02 20:23:15 +01001173config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001174 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001175 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001176 default y
1177 bool
1178
eric miao52108642010-12-13 09:42:34 +01001179config MULTI_IRQ_HANDLER
1180 bool
1181 help
1182 Allow each machine to specify it's own IRQ handler at run time.
1183
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001184if !MMU
1185source "arch/arm/Kconfig-nommu"
1186endif
1187
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001188config ARM_ERRATA_411920
1189 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001190 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001191 help
1192 Invalidation of the Instruction Cache operation can
1193 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1194 It does not affect the MPCore. This option enables the ARM Ltd.
1195 recommended workaround.
1196
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001197config ARM_ERRATA_430973
1198 bool "ARM errata: Stale prediction on replaced interworking branch"
1199 depends on CPU_V7
1200 help
1201 This option enables the workaround for the 430973 Cortex-A8
1202 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1203 interworking branch is replaced with another code sequence at the
1204 same virtual address, whether due to self-modifying code or virtual
1205 to physical address re-mapping, Cortex-A8 does not recover from the
1206 stale interworking branch prediction. This results in Cortex-A8
1207 executing the new code sequence in the incorrect ARM or Thumb state.
1208 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1209 and also flushes the branch target cache at every context switch.
1210 Note that setting specific bits in the ACTLR register may not be
1211 available in non-secure mode.
1212
Catalin Marinas855c5512009-04-30 17:06:15 +01001213config ARM_ERRATA_458693
1214 bool "ARM errata: Processor deadlock when a false hazard is created"
1215 depends on CPU_V7
1216 help
1217 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1218 erratum. For very specific sequences of memory operations, it is
1219 possible for a hazard condition intended for a cache line to instead
1220 be incorrectly associated with a different cache line. This false
1221 hazard might then cause a processor deadlock. The workaround enables
1222 the L1 caching of the NEON accesses and disables the PLD instruction
1223 in the ACTLR register. Note that setting specific bits in the ACTLR
1224 register may not be available in non-secure mode.
1225
Catalin Marinas0516e462009-04-30 17:06:20 +01001226config ARM_ERRATA_460075
1227 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1228 depends on CPU_V7
1229 help
1230 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1231 erratum. Any asynchronous access to the L2 cache may encounter a
1232 situation in which recent store transactions to the L2 cache are lost
1233 and overwritten with stale memory contents from external memory. The
1234 workaround disables the write-allocate mode for the L2 cache via the
1235 ACTLR register. Note that setting specific bits in the ACTLR register
1236 may not be available in non-secure mode.
1237
Will Deacon9f050272010-09-14 09:51:43 +01001238config ARM_ERRATA_742230
1239 bool "ARM errata: DMB operation may be faulty"
1240 depends on CPU_V7 && SMP
1241 help
1242 This option enables the workaround for the 742230 Cortex-A9
1243 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1244 between two write operations may not ensure the correct visibility
1245 ordering of the two writes. This workaround sets a specific bit in
1246 the diagnostic register of the Cortex-A9 which causes the DMB
1247 instruction to behave as a DSB, ensuring the correct behaviour of
1248 the two writes.
1249
Will Deacona672e992010-09-14 09:53:02 +01001250config ARM_ERRATA_742231
1251 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1252 depends on CPU_V7 && SMP
1253 help
1254 This option enables the workaround for the 742231 Cortex-A9
1255 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1256 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1257 accessing some data located in the same cache line, may get corrupted
1258 data due to bad handling of the address hazard when the line gets
1259 replaced from one of the CPUs at the same time as another CPU is
1260 accessing it. This workaround sets specific bits in the diagnostic
1261 register of the Cortex-A9 which reduces the linefill issuing
1262 capabilities of the processor.
1263
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001264config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001265 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001266 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001267 help
1268 The PL310 L2 cache controller implements three types of Clean &
1269 Invalidate maintenance operations: by Physical Address
1270 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1271 They are architecturally defined to behave as the execution of a
1272 clean operation followed immediately by an invalidate operation,
1273 both performing to the same memory location. This functionality
1274 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001275 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001276
1277config ARM_ERRATA_720789
1278 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001279 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001280 help
1281 This option enables the workaround for the 720789 Cortex-A9 (prior to
1282 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1283 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1284 As a consequence of this erratum, some TLB entries which should be
1285 invalidated are not, resulting in an incoherency in the system page
1286 tables. The workaround changes the TLB flushing routines to invalidate
1287 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001288
Russell King1f0090a2011-03-16 23:35:25 +00001289config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001290 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001291 depends on CACHE_L2X0
1292 help
1293 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1294 operation (offset 0x7FC). This operation runs in background so that
1295 PL310 can handle normal accesses while it is in progress. Under very
1296 rare circumstances, due to this erratum, write data can be lost when
1297 PL310 treats a cacheable write transaction during a Clean &
1298 Invalidate by Way operation.
1299
Will Deacon475d92f2010-09-28 14:02:02 +01001300config ARM_ERRATA_743622
1301 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1302 depends on CPU_V7
1303 help
1304 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001305 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001306 optimisation in the Cortex-A9 Store Buffer may lead to data
1307 corruption. This workaround sets a specific bit in the diagnostic
1308 register of the Cortex-A9 which disables the Store Buffer
1309 optimisation, preventing the defect from occurring. This has no
1310 visible impact on the overall performance or power consumption of the
1311 processor.
1312
Will Deacon9a27c272011-02-18 16:36:35 +01001313config ARM_ERRATA_751472
1314 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001315 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001316 help
1317 This option enables the workaround for the 751472 Cortex-A9 (prior
1318 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1319 completion of a following broadcasted operation if the second
1320 operation is received by a CPU before the ICIALLUIS has completed,
1321 potentially leading to corrupted entries in the cache or TLB.
1322
Will Deaconfa0ce402011-11-14 17:24:57 +01001323config PL310_ERRATA_753970
1324 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001325 depends on CACHE_PL310
1326 help
1327 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1328
1329 Under some condition the effect of cache sync operation on
1330 the store buffer still remains when the operation completes.
1331 This means that the store buffer is always asked to drain and
1332 this prevents it from merging any further writes. The workaround
1333 is to replace the normal offset of cache sync operation (0x730)
1334 by another offset targeting an unmapped PL310 register 0x740.
1335 This has the same effect as the cache sync operation: store buffer
1336 drain and waiting for all buffers empty.
1337
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001338config ARM_ERRATA_754322
1339 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1340 depends on CPU_V7
1341 help
1342 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1343 r3p*) erratum. A speculative memory access may cause a page table walk
1344 which starts prior to an ASID switch but completes afterwards. This
1345 can populate the micro-TLB with a stale entry which may be hit with
1346 the new ASID. This workaround places two dsb instructions in the mm
1347 switching code so that no page table walks can cross the ASID switch.
1348
Will Deacon5dab26af2011-03-04 12:38:54 +01001349config ARM_ERRATA_754327
1350 bool "ARM errata: no automatic Store Buffer drain"
1351 depends on CPU_V7 && SMP
1352 help
1353 This option enables the workaround for the 754327 Cortex-A9 (prior to
1354 r2p0) erratum. The Store Buffer does not have any automatic draining
1355 mechanism and therefore a livelock may occur if an external agent
1356 continuously polls a memory location waiting to observe an update.
1357 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1358 written polling loops from denying visibility of updates to memory.
1359
Catalin Marinas145e10e2011-08-15 11:04:41 +01001360config ARM_ERRATA_364296
1361 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1362 depends on CPU_V6 && !SMP
1363 help
1364 This options enables the workaround for the 364296 ARM1136
1365 r0p2 erratum (possible cache data corruption with
1366 hit-under-miss enabled). It sets the undocumented bit 31 in
1367 the auxiliary control register and the FI bit in the control
1368 register, thus disabling hit-under-miss without putting the
1369 processor into full low interrupt latency mode. ARM11MPCore
1370 is not affected.
1371
Will Deaconf630c1b2011-09-15 11:45:15 +01001372config ARM_ERRATA_764369
1373 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1374 depends on CPU_V7 && SMP
1375 help
1376 This option enables the workaround for erratum 764369
1377 affecting Cortex-A9 MPCore with two or more processors (all
1378 current revisions). Under certain timing circumstances, a data
1379 cache line maintenance operation by MVA targeting an Inner
1380 Shareable memory region may fail to proceed up to either the
1381 Point of Coherency or to the Point of Unification of the
1382 system. This workaround adds a DSB instruction before the
1383 relevant cache maintenance functions and sets a specific bit
1384 in the diagnostic control register of the SCU.
1385
Will Deacon11ed0ba2011-11-14 17:24:58 +01001386config PL310_ERRATA_769419
1387 bool "PL310 errata: no automatic Store Buffer drain"
1388 depends on CACHE_L2X0
1389 help
1390 On revisions of the PL310 prior to r3p2, the Store Buffer does
1391 not automatically drain. This can cause normal, non-cacheable
1392 writes to be retained when the memory system is idle, leading
1393 to suboptimal I/O performance for drivers using coherent DMA.
1394 This option adds a write barrier to the cpu_idle loop so that,
1395 on systems with an outer cache, the store buffer is drained
1396 explicitly.
1397
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398endmenu
1399
1400source "arch/arm/common/Kconfig"
1401
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402menu "Bus support"
1403
1404config ARM_AMBA
1405 bool
1406
1407config ISA
1408 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 help
1410 Find out whether you have ISA slots on your motherboard. ISA is the
1411 name of a bus system, i.e. the way the CPU talks to the other stuff
1412 inside your box. Other bus systems are PCI, EISA, MicroChannel
1413 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1414 newer boards don't support it. If you have ISA, say Y, otherwise N.
1415
Russell King065909b2006-01-04 15:44:16 +00001416# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417config ISA_DMA
1418 bool
Russell King065909b2006-01-04 15:44:16 +00001419 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420
Russell King065909b2006-01-04 15:44:16 +00001421# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001422config ISA_DMA_API
1423 bool
Al Viro5cae8412005-05-04 05:39:22 +01001424
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001426 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427 help
1428 Find out whether you have a PCI motherboard. PCI is the name of a
1429 bus system, i.e. the way the CPU talks to the other stuff inside
1430 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1431 VESA. If you have PCI, say Y, otherwise N.
1432
Anton Vorontsov52882172010-04-19 13:20:49 +01001433config PCI_DOMAINS
1434 bool
1435 depends on PCI
1436
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001437config PCI_NANOENGINE
1438 bool "BSE nanoEngine PCI support"
1439 depends on SA1100_NANOENGINE
1440 help
1441 Enable PCI on the BSE nanoEngine board.
1442
Matthew Wilcox36e23592007-07-10 10:54:40 -06001443config PCI_SYSCALL
1444 def_bool PCI
1445
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446# Select the host bridge type
1447config PCI_HOST_VIA82C505
1448 bool
1449 depends on PCI && ARCH_SHARK
1450 default y
1451
Mike Rapoporta0113a92007-11-25 08:55:34 +01001452config PCI_HOST_ITE8152
1453 bool
1454 depends on PCI && MACH_ARMCORE
1455 default y
1456 select DMABOUNCE
1457
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458source "drivers/pci/Kconfig"
1459
1460source "drivers/pcmcia/Kconfig"
1461
1462endmenu
1463
1464menu "Kernel Features"
1465
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001466source "kernel/time/Kconfig"
1467
Dave Martin3b556582011-12-07 15:38:04 +00001468config HAVE_SMP
1469 bool
1470 help
1471 This option should be selected by machines which have an SMP-
1472 capable CPU.
1473
1474 The only effect of this option is to make the SMP-related
1475 options available to the user for configuration.
1476
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001478 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001479 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001480 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001481 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001482 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001483 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001484 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001485 help
1486 This enables support for systems with more than one CPU. If you have
1487 a system with only one CPU, like most personal computers, say N. If
1488 you have a system with more than one CPU, say Y.
1489
1490 If you say N here, the kernel will run on single and multiprocessor
1491 machines, but will use only one CPU of a multiprocessor machine. If
1492 you say Y here, the kernel will run on many, but not all, single
1493 processor machines. On a single processor machine, the kernel will
1494 run faster if you say N here.
1495
Paul Bolle395cf962011-08-15 02:02:26 +02001496 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001498 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499
1500 If you don't know what to do here, say N.
1501
Russell Kingf00ec482010-09-04 10:47:48 +01001502config SMP_ON_UP
1503 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1504 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001505 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001506 default y
1507 help
1508 SMP kernels contain instructions which fail on non-SMP processors.
1509 Enabling this option allows the kernel to modify itself to make
1510 these instructions safe. Disabling it allows about 1K of space
1511 savings.
1512
1513 If you don't know what to do here, say Y.
1514
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001515config ARM_CPU_TOPOLOGY
1516 bool "Support cpu topology definition"
1517 depends on SMP && CPU_V7
1518 default y
1519 help
1520 Support ARM cpu topology definition. The MPIDR register defines
1521 affinity between processors which is then used to describe the cpu
1522 topology of an ARM System.
1523
1524config SCHED_MC
1525 bool "Multi-core scheduler support"
1526 depends on ARM_CPU_TOPOLOGY
1527 help
1528 Multi-core scheduler support improves the CPU scheduler's decision
1529 making when dealing with multi-core CPU chips at a cost of slightly
1530 increased overhead in some places. If unsure say N here.
1531
1532config SCHED_SMT
1533 bool "SMT scheduler support"
1534 depends on ARM_CPU_TOPOLOGY
1535 help
1536 Improves the CPU scheduler's decision making when dealing with
1537 MultiThreading at a cost of slightly increased overhead in some
1538 places. If unsure say N here.
1539
Russell Kinga8cbcd92009-05-16 11:51:14 +01001540config HAVE_ARM_SCU
1541 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001542 help
1543 This option enables support for the ARM system coherency unit
1544
Russell Kingf32f4ce2009-05-16 12:14:21 +01001545config HAVE_ARM_TWD
1546 bool
1547 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001548 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001549 help
1550 This options enables support for the ARM timer and watchdog unit
1551
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001552choice
1553 prompt "Memory split"
1554 default VMSPLIT_3G
1555 help
1556 Select the desired split between kernel and user memory.
1557
1558 If you are not absolutely sure what you are doing, leave this
1559 option alone!
1560
1561 config VMSPLIT_3G
1562 bool "3G/1G user/kernel split"
1563 config VMSPLIT_2G
1564 bool "2G/2G user/kernel split"
1565 config VMSPLIT_1G
1566 bool "1G/3G user/kernel split"
1567endchoice
1568
1569config PAGE_OFFSET
1570 hex
1571 default 0x40000000 if VMSPLIT_1G
1572 default 0x80000000 if VMSPLIT_2G
1573 default 0xC0000000
1574
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575config NR_CPUS
1576 int "Maximum number of CPUs (2-32)"
1577 range 2 32
1578 depends on SMP
1579 default "4"
1580
Russell Kinga054a812005-11-02 22:24:33 +00001581config HOTPLUG_CPU
1582 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1583 depends on SMP && HOTPLUG && EXPERIMENTAL
1584 help
1585 Say Y here to experiment with turning CPUs off and on. CPUs
1586 can be controlled through /sys/devices/system/cpu.
1587
Russell King37ee16a2005-11-08 19:08:05 +00001588config LOCAL_TIMERS
1589 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001590 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001591 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001592 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001593 help
1594 Enable support for local timers on SMP platforms, rather then the
1595 legacy IPI broadcast method. Local timers allows the system
1596 accounting to be spread across the timer interval, preventing a
1597 "thundering herd" at every timer tick.
1598
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001599config ARCH_NR_GPIO
1600 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001601 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001602 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001603 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001604 default 0
1605 help
1606 Maximum number of GPIOs in the system.
1607
1608 If unsure, leave the default value.
1609
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001610source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611
Russell Kingf8065812006-03-02 22:41:59 +00001612config HZ
1613 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001614 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001615 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001616 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001617 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001618 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001619 default 100
1620
Catalin Marinas16c79652009-07-24 12:33:02 +01001621config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001622 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001623 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001624 select AEABI
1625 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001626 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001627 help
1628 By enabling this option, the kernel will be compiled in
1629 Thumb-2 mode. A compiler/assembler that understand the unified
1630 ARM-Thumb syntax is needed.
1631
1632 If unsure, say N.
1633
Dave Martin6f685c52011-03-03 11:41:12 +01001634config THUMB2_AVOID_R_ARM_THM_JUMP11
1635 bool "Work around buggy Thumb-2 short branch relocations in gas"
1636 depends on THUMB2_KERNEL && MODULES
1637 default y
1638 help
1639 Various binutils versions can resolve Thumb-2 branches to
1640 locally-defined, preemptible global symbols as short-range "b.n"
1641 branch instructions.
1642
1643 This is a problem, because there's no guarantee the final
1644 destination of the symbol, or any candidate locations for a
1645 trampoline, are within range of the branch. For this reason, the
1646 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1647 relocation in modules at all, and it makes little sense to add
1648 support.
1649
1650 The symptom is that the kernel fails with an "unsupported
1651 relocation" error when loading some modules.
1652
1653 Until fixed tools are available, passing
1654 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1655 code which hits this problem, at the cost of a bit of extra runtime
1656 stack usage in some cases.
1657
1658 The problem is described in more detail at:
1659 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1660
1661 Only Thumb-2 kernels are affected.
1662
1663 Unless you are sure your tools don't have this problem, say Y.
1664
Catalin Marinas0becb082009-07-24 12:32:53 +01001665config ARM_ASM_UNIFIED
1666 bool
1667
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001668config AEABI
1669 bool "Use the ARM EABI to compile the kernel"
1670 help
1671 This option allows for the kernel to be compiled using the latest
1672 ARM ABI (aka EABI). This is only useful if you are using a user
1673 space environment that is also compiled with EABI.
1674
1675 Since there are major incompatibilities between the legacy ABI and
1676 EABI, especially with regard to structure member alignment, this
1677 option also changes the kernel syscall calling convention to
1678 disambiguate both ABIs and allow for backward compatibility support
1679 (selected with CONFIG_OABI_COMPAT).
1680
1681 To use this you need GCC version 4.0.0 or later.
1682
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001683config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001684 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001685 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001686 default y
1687 help
1688 This option preserves the old syscall interface along with the
1689 new (ARM EABI) one. It also provides a compatibility layer to
1690 intercept syscalls that have structure arguments which layout
1691 in memory differs between the legacy ABI and the new ARM EABI
1692 (only for non "thumb" binaries). This option adds a tiny
1693 overhead to all syscalls and produces a slightly larger kernel.
1694 If you know you'll be using only pure EABI user space then you
1695 can say N here. If this option is not selected and you attempt
1696 to execute a legacy ABI binary then the result will be
1697 UNPREDICTABLE (in fact it can be predicted that it won't work
1698 at all). If in doubt say Y.
1699
Mel Gormaneb335752009-05-13 17:34:48 +01001700config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001701 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001702
Russell King05944d72006-11-30 20:43:51 +00001703config ARCH_SPARSEMEM_ENABLE
1704 bool
1705
Russell King07a2f732008-10-01 21:39:58 +01001706config ARCH_SPARSEMEM_DEFAULT
1707 def_bool ARCH_SPARSEMEM_ENABLE
1708
Russell King05944d72006-11-30 20:43:51 +00001709config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001710 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001711
Will Deacon7b7bf492011-05-19 13:21:14 +01001712config HAVE_ARCH_PFN_VALID
1713 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1714
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001715config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001716 bool "High Memory Support"
1717 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001718 help
1719 The address space of ARM processors is only 4 Gigabytes large
1720 and it has to accommodate user address space, kernel address
1721 space as well as some memory mapped IO. That means that, if you
1722 have a large amount of physical memory and/or IO, not all of the
1723 memory can be "permanently mapped" by the kernel. The physical
1724 memory that is not permanently mapped is called "high memory".
1725
1726 Depending on the selected kernel/user memory split, minimum
1727 vmalloc space and actual amount of RAM, you may not need this
1728 option which should result in a slightly faster kernel.
1729
1730 If unsure, say n.
1731
Russell King65cec8e2009-08-17 20:02:06 +01001732config HIGHPTE
1733 bool "Allocate 2nd-level pagetables from highmem"
1734 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001735
Jamie Iles1b8873a2010-02-02 20:25:44 +01001736config HW_PERF_EVENTS
1737 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001738 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001739 default y
1740 help
1741 Enable hardware performance counter support for perf events. If
1742 disabled, perf events will use software events only.
1743
Dave Hansen3f22ab22005-06-23 00:07:43 -07001744source "mm/Kconfig"
1745
Magnus Dammc1b2d972010-07-05 10:00:11 +01001746config FORCE_MAX_ZONEORDER
1747 int "Maximum zone order" if ARCH_SHMOBILE
1748 range 11 64 if ARCH_SHMOBILE
1749 default "9" if SA1111
1750 default "11"
1751 help
1752 The kernel memory allocator divides physically contiguous memory
1753 blocks into "zones", where each zone is a power of two number of
1754 pages. This option selects the largest power of two that the kernel
1755 keeps in the memory allocator. If you need to allocate very large
1756 blocks of physically contiguous memory, then you may need to
1757 increase this value.
1758
1759 This config option is actually maximum order plus one. For example,
1760 a value of 11 means that the largest free memory block is 2^10 pages.
1761
Linus Torvalds1da177e2005-04-16 15:20:36 -07001762config LEDS
1763 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001764 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001765 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1767 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001768 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001769 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001770 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771 help
1772 If you say Y here, the LEDs on your machine will be used
1773 to provide useful information about your current system status.
1774
1775 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1776 be able to select which LEDs are active using the options below. If
1777 you are compiling a kernel for the EBSA-110 or the LART however, the
1778 red LED will simply flash regularly to indicate that the system is
1779 still functional. It is safe to say Y here if you have a CATS
1780 system, but the driver will do nothing.
1781
1782config LEDS_TIMER
1783 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001784 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1785 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001787 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 default y if ARCH_EBSA110
1789 help
1790 If you say Y here, one of the system LEDs (the green one on the
1791 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1792 will flash regularly to indicate that the system is still
1793 operational. This is mainly useful to kernel hackers who are
1794 debugging unstable kernels.
1795
1796 The LART uses the same LED for both Timer LED and CPU usage LED
1797 functions. You may choose to use both, but the Timer LED function
1798 will overrule the CPU usage LED.
1799
1800config LEDS_CPU
1801 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001802 !ARCH_OMAP) \
1803 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1804 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 depends on LEDS
1806 help
1807 If you say Y here, the red LED will be used to give a good real
1808 time indication of CPU usage, by lighting whenever the idle task
1809 is not currently executing.
1810
1811 The LART uses the same LED for both Timer LED and CPU usage LED
1812 functions. You may choose to use both, but the Timer LED function
1813 will overrule the CPU usage LED.
1814
1815config ALIGNMENT_TRAP
1816 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001817 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001819 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001821 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1823 address divisible by 4. On 32-bit ARM processors, these non-aligned
1824 fetch/store instructions will be emulated in software if you say
1825 here, which has a severe performance impact. This is necessary for
1826 correct operation of some network protocols. With an IP-only
1827 configuration it is safe to say N, otherwise say Y.
1828
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001829config UACCESS_WITH_MEMCPY
1830 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1831 depends on MMU && EXPERIMENTAL
1832 default y if CPU_FEROCEON
1833 help
1834 Implement faster copy_to_user and clear_user methods for CPU
1835 cores where a 8-word STM instruction give significantly higher
1836 memory write throughput than a sequence of individual 32bit stores.
1837
1838 A possible side effect is a slight increase in scheduling latency
1839 between threads sharing the same address space if they invoke
1840 such copy operations with large buffers.
1841
1842 However, if the CPU data cache is using a write-allocate mode,
1843 this option is unlikely to provide any performance gain.
1844
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001845config SECCOMP
1846 bool
1847 prompt "Enable seccomp to safely compute untrusted bytecode"
1848 ---help---
1849 This kernel feature is useful for number crunching applications
1850 that may need to compute untrusted bytecode during their
1851 execution. By using pipes or other transports made available to
1852 the process as file descriptors supporting the read/write
1853 syscalls, it's possible to isolate those applications in
1854 their own address space using seccomp. Once seccomp is
1855 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1856 and the task is only allowed to execute a few safe syscalls
1857 defined by each seccomp mode.
1858
Nicolas Pitrec743f382010-05-24 23:55:42 -04001859config CC_STACKPROTECTOR
1860 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001861 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001862 help
1863 This option turns on the -fstack-protector GCC feature. This
1864 feature puts, at the beginning of functions, a canary value on
1865 the stack just before the return address, and validates
1866 the value just before actually returning. Stack based buffer
1867 overflows (that need to overwrite this return address) now also
1868 overwrite the canary, which gets detected and the attack is then
1869 neutralized via a kernel panic.
1870 This feature requires gcc version 4.2 or above.
1871
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001872config DEPRECATED_PARAM_STRUCT
1873 bool "Provide old way to pass kernel parameters"
1874 help
1875 This was deprecated in 2001 and announced to live on for 5 years.
1876 Some old boot loaders still use this way.
1877
Linus Torvalds1da177e2005-04-16 15:20:36 -07001878endmenu
1879
1880menu "Boot options"
1881
Grant Likely9eb8f672011-04-28 14:27:20 -06001882config USE_OF
1883 bool "Flattened Device Tree support"
1884 select OF
1885 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001886 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001887 help
1888 Include support for flattened device tree machine descriptions.
1889
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890# Compressed boot loader in ROM. Yes, we really want to ask about
1891# TEXT and BSS so we preserve their values in the config files.
1892config ZBOOT_ROM_TEXT
1893 hex "Compressed ROM boot loader base address"
1894 default "0"
1895 help
1896 The physical address at which the ROM-able zImage is to be
1897 placed in the target. Platforms which normally make use of
1898 ROM-able zImage formats normally set this to a suitable
1899 value in their defconfig file.
1900
1901 If ZBOOT_ROM is not enabled, this has no effect.
1902
1903config ZBOOT_ROM_BSS
1904 hex "Compressed ROM boot loader BSS address"
1905 default "0"
1906 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001907 The base address of an area of read/write memory in the target
1908 for the ROM-able zImage which must be available while the
1909 decompressor is running. It must be large enough to hold the
1910 entire decompressed kernel plus an additional 128 KiB.
1911 Platforms which normally make use of ROM-able zImage formats
1912 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001913
1914 If ZBOOT_ROM is not enabled, this has no effect.
1915
1916config ZBOOT_ROM
1917 bool "Compressed boot loader in ROM/flash"
1918 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1919 help
1920 Say Y here if you intend to execute your compressed kernel image
1921 (zImage) directly from ROM or flash. If unsure, say N.
1922
Simon Horman090ab3f2011-04-26 06:29:53 +01001923choice
1924 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1925 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1926 default ZBOOT_ROM_NONE
1927 help
1928 Include experimental SD/MMC loading code in the ROM-able zImage.
1929 With this enabled it is possible to write the the ROM-able zImage
1930 kernel image to an MMC or SD card and boot the kernel straight
1931 from the reset vector. At reset the processor Mask ROM will load
1932 the first part of the the ROM-able zImage which in turn loads the
1933 rest the kernel image to RAM.
1934
1935config ZBOOT_ROM_NONE
1936 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1937 help
1938 Do not load image from SD or MMC
1939
Simon Hormanf45b1142011-01-11 04:01:08 +01001940config ZBOOT_ROM_MMCIF
1941 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001942 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001943 Load image from MMCIF hardware block.
1944
1945config ZBOOT_ROM_SH_MOBILE_SDHI
1946 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1947 help
1948 Load image from SDHI hardware block
1949
1950endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001951
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001952config ARM_APPENDED_DTB
1953 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1954 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1955 help
1956 With this option, the boot code will look for a device tree binary
1957 (DTB) appended to zImage
1958 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1959
1960 This is meant as a backward compatibility convenience for those
1961 systems with a bootloader that can't be upgraded to accommodate
1962 the documented boot protocol using a device tree.
1963
1964 Beware that there is very little in terms of protection against
1965 this option being confused by leftover garbage in memory that might
1966 look like a DTB header after a reboot if no actual DTB is appended
1967 to zImage. Do not leave this option active in a production kernel
1968 if you don't intend to always append a DTB. Proper passing of the
1969 location into r2 of a bootloader provided DTB is always preferable
1970 to this option.
1971
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001972config ARM_ATAG_DTB_COMPAT
1973 bool "Supplement the appended DTB with traditional ATAG information"
1974 depends on ARM_APPENDED_DTB
1975 help
1976 Some old bootloaders can't be updated to a DTB capable one, yet
1977 they provide ATAGs with memory configuration, the ramdisk address,
1978 the kernel cmdline string, etc. Such information is dynamically
1979 provided by the bootloader and can't always be stored in a static
1980 DTB. To allow a device tree enabled kernel to be used with such
1981 bootloaders, this option allows zImage to extract the information
1982 from the ATAG list and store it at run time into the appended DTB.
1983
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984config CMDLINE
1985 string "Default kernel command string"
1986 default ""
1987 help
1988 On some architectures (EBSA110 and CATS), there is currently no way
1989 for the boot loader to pass arguments to the kernel. For these
1990 architectures, you should supply some command-line options at build
1991 time by entering them here. As a minimum, you should specify the
1992 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1993
Victor Boivie4394c122011-05-04 17:07:55 +01001994choice
1995 prompt "Kernel command line type" if CMDLINE != ""
1996 default CMDLINE_FROM_BOOTLOADER
1997
1998config CMDLINE_FROM_BOOTLOADER
1999 bool "Use bootloader kernel arguments if available"
2000 help
2001 Uses the command-line options passed by the boot loader. If
2002 the boot loader doesn't provide any, the default kernel command
2003 string provided in CMDLINE will be used.
2004
2005config CMDLINE_EXTEND
2006 bool "Extend bootloader kernel arguments"
2007 help
2008 The command-line arguments provided by the boot loader will be
2009 appended to the default kernel command string.
2010
Alexander Holler92d20402010-02-16 19:04:53 +01002011config CMDLINE_FORCE
2012 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002013 help
2014 Always use the default kernel command string, even if the boot
2015 loader passes other arguments to the kernel.
2016 This is useful if you cannot or don't want to change the
2017 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002018endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002019
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020config XIP_KERNEL
2021 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002022 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023 help
2024 Execute-In-Place allows the kernel to run from non-volatile storage
2025 directly addressable by the CPU, such as NOR flash. This saves RAM
2026 space since the text section of the kernel is not loaded from flash
2027 to RAM. Read-write sections, such as the data section and stack,
2028 are still copied to RAM. The XIP kernel is not compressed since
2029 it has to run directly from flash, so it will take more space to
2030 store it. The flash address used to link the kernel object files,
2031 and for storing it, is configuration dependent. Therefore, if you
2032 say Y here, you must know the proper physical address where to
2033 store the kernel image depending on your own flash memory usage.
2034
2035 Also note that the make target becomes "make xipImage" rather than
2036 "make zImage" or "make Image". The final kernel binary to put in
2037 ROM memory will be arch/arm/boot/xipImage.
2038
2039 If unsure, say N.
2040
2041config XIP_PHYS_ADDR
2042 hex "XIP Kernel Physical Location"
2043 depends on XIP_KERNEL
2044 default "0x00080000"
2045 help
2046 This is the physical address in your flash memory the kernel will
2047 be linked for and stored to. This address is dependent on your
2048 own flash usage.
2049
Richard Purdiec587e4a2007-02-06 21:29:00 +01002050config KEXEC
2051 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002052 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002053 help
2054 kexec is a system call that implements the ability to shutdown your
2055 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002056 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002057 you can start any kernel with it, not just Linux.
2058
2059 It is an ongoing process to be certain the hardware in a machine
2060 is properly shutdown, so do not be surprised if this code does not
2061 initially work for you. It may help to enable device hotplugging
2062 support.
2063
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002064config ATAGS_PROC
2065 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002066 depends on KEXEC
2067 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002068 help
2069 Should the atags used to boot the kernel be exported in an "atags"
2070 file in procfs. Useful with kexec.
2071
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002072config CRASH_DUMP
2073 bool "Build kdump crash kernel (EXPERIMENTAL)"
2074 depends on EXPERIMENTAL
2075 help
2076 Generate crash dump after being started by kexec. This should
2077 be normally only set in special crash dump kernels which are
2078 loaded in the main kernel with kexec-tools into a specially
2079 reserved region and then later executed after a crash by
2080 kdump/kexec. The crash dump kernel must be compiled to a
2081 memory address not used by the main kernel
2082
2083 For more details see Documentation/kdump/kdump.txt
2084
Eric Miaoe69edc792010-07-05 15:56:50 +02002085config AUTO_ZRELADDR
2086 bool "Auto calculation of the decompressed kernel image address"
2087 depends on !ZBOOT_ROM && !ARCH_U300
2088 help
2089 ZRELADDR is the physical address where the decompressed kernel
2090 image will be placed. If AUTO_ZRELADDR is selected, the address
2091 will be determined at run-time by masking the current IP with
2092 0xf8000000. This assumes the zImage being placed in the first 128MB
2093 from start of memory.
2094
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095endmenu
2096
Russell Kingac9d7ef2008-08-18 17:26:00 +01002097menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098
Ben Dooks89c52ed2009-07-30 23:23:24 +01002099if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100
2101source "drivers/cpufreq/Kconfig"
2102
Yong Shen64f102b2010-10-21 21:18:59 +08002103config CPU_FREQ_IMX
2104 tristate "CPUfreq driver for i.MX CPUs"
2105 depends on ARCH_MXC && CPU_FREQ
2106 help
2107 This enables the CPUfreq driver for i.MX CPUs.
2108
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109config CPU_FREQ_SA1100
2110 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111
2112config CPU_FREQ_SA1110
2113 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114
2115config CPU_FREQ_INTEGRATOR
2116 tristate "CPUfreq driver for ARM Integrator CPUs"
2117 depends on ARCH_INTEGRATOR && CPU_FREQ
2118 default y
2119 help
2120 This enables the CPUfreq driver for ARM Integrator CPUs.
2121
2122 For details, take a look at <file:Documentation/cpu-freq>.
2123
2124 If in doubt, say Y.
2125
Russell King9e2697f2007-12-14 13:30:14 +00002126config CPU_FREQ_PXA
2127 bool
2128 depends on CPU_FREQ && ARCH_PXA && PXA25x
2129 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002130 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002131 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2132
Ben Dooks9d56c022009-07-30 23:23:25 +01002133config CPU_FREQ_S3C
2134 bool
2135 help
2136 Internal configuration node for common cpufreq on Samsung SoC
2137
2138config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002139 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002140 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002141 select CPU_FREQ_S3C
2142 help
2143 This enables the CPUfreq driver for the Samsung S3C24XX family
2144 of CPUs.
2145
2146 For details, take a look at <file:Documentation/cpu-freq>.
2147
2148 If in doubt, say N.
2149
2150config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002151 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002152 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2153 help
2154 Compile in support for changing the PLL frequency from the
2155 S3C24XX series CPUfreq driver. The PLL takes time to settle
2156 after a frequency change, so by default it is not enabled.
2157
2158 This also means that the PLL tables for the selected CPU(s) will
2159 be built which may increase the size of the kernel image.
2160
2161config CPU_FREQ_S3C24XX_DEBUG
2162 bool "Debug CPUfreq Samsung driver core"
2163 depends on CPU_FREQ_S3C24XX
2164 help
2165 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2166
2167config CPU_FREQ_S3C24XX_IODEBUG
2168 bool "Debug CPUfreq Samsung driver IO timing"
2169 depends on CPU_FREQ_S3C24XX
2170 help
2171 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2172
Ben Dookse6d197a2009-07-30 23:23:42 +01002173config CPU_FREQ_S3C24XX_DEBUGFS
2174 bool "Export debugfs for CPUFreq"
2175 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2176 help
2177 Export status information via debugfs.
2178
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179endif
2180
Russell Kingac9d7ef2008-08-18 17:26:00 +01002181source "drivers/cpuidle/Kconfig"
2182
2183endmenu
2184
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185menu "Floating point emulation"
2186
2187comment "At least one emulation must be selected"
2188
2189config FPE_NWFPE
2190 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002191 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192 ---help---
2193 Say Y to include the NWFPE floating point emulator in the kernel.
2194 This is necessary to run most binaries. Linux does not currently
2195 support floating point hardware so you need to say Y here even if
2196 your machine has an FPA or floating point co-processor podule.
2197
2198 You may say N here if you are going to load the Acorn FPEmulator
2199 early in the bootup.
2200
2201config FPE_NWFPE_XP
2202 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002203 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002204 help
2205 Say Y to include 80-bit support in the kernel floating-point
2206 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2207 Note that gcc does not generate 80-bit operations by default,
2208 so in most cases this option only enlarges the size of the
2209 floating point emulator without any good reason.
2210
2211 You almost surely want to say N here.
2212
2213config FPE_FASTFPE
2214 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002215 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216 ---help---
2217 Say Y here to include the FAST floating point emulator in the kernel.
2218 This is an experimental much faster emulator which now also has full
2219 precision for the mantissa. It does not support any exceptions.
2220 It is very simple, and approximately 3-6 times faster than NWFPE.
2221
2222 It should be sufficient for most programs. It may be not suitable
2223 for scientific calculations, but you have to check this for yourself.
2224 If you do not feel you need a faster FP emulation you should better
2225 choose NWFPE.
2226
2227config VFP
2228 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002229 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230 help
2231 Say Y to include VFP support code in the kernel. This is needed
2232 if your hardware includes a VFP unit.
2233
2234 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2235 release notes and additional status information.
2236
2237 Say N if your target does not have VFP hardware.
2238
Catalin Marinas25ebee02007-09-25 15:22:24 +01002239config VFPv3
2240 bool
2241 depends on VFP
2242 default y if CPU_V7
2243
Catalin Marinasb5872db2008-01-10 19:16:17 +01002244config NEON
2245 bool "Advanced SIMD (NEON) Extension support"
2246 depends on VFPv3 && CPU_V7
2247 help
2248 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2249 Extension.
2250
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251endmenu
2252
2253menu "Userspace binary formats"
2254
2255source "fs/Kconfig.binfmt"
2256
2257config ARTHUR
2258 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002259 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260 help
2261 Say Y here to include the kernel code necessary if you want to run
2262 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2263 experimental; if this sounds frightening, say N and sleep in peace.
2264 You can also say M here to compile this support as a module (which
2265 will be called arthur).
2266
2267endmenu
2268
2269menu "Power management options"
2270
Russell Kingeceab4a2005-11-15 11:31:41 +00002271source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002272
Johannes Bergf4cb5702007-12-08 02:14:00 +01002273config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002274 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002275 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2276 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002277 def_bool y
2278
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002279config ARM_CPU_SUSPEND
2280 def_bool PM_SLEEP
2281
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282endmenu
2283
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002284source "net/Kconfig"
2285
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002286source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287
2288source "fs/Kconfig"
2289
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290source "arch/arm/Kconfig.debug"
2291
2292source "security/Kconfig"
2293
2294source "crypto/Kconfig"
2295
2296source "lib/Kconfig"