blob: 10c9abdc8e0471ef27001e75acbd892c645993f6 [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
Rob Herring1ac02d72012-04-04 17:48:04 -0500341 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100342 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100343 This enables support for systems based on the Atmel AT91RM9200,
Jean-Christophe PLAGNIOL-VILLARD9918cea2012-01-26 14:07:09 +0100344 AT91SAM9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345
Russell Kingccf50e22010-03-15 19:03:06 +0000346config ARCH_BCMRING
347 bool "Broadcom BCMRING"
348 depends on MMU
349 select CPU_V6
350 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100351 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100352 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000353 select GENERIC_CLOCKEVENTS
354 select ARCH_WANT_OPTIONAL_GPIOLIB
355 help
356 Support for Broadcom's BCMRing platform.
357
Rob Herring220e6cf2011-06-07 10:02:55 -0500358config ARCH_HIGHBANK
359 bool "Calxeda Highbank-based"
360 select ARCH_WANT_OPTIONAL_GPIOLIB
361 select ARM_AMBA
362 select ARM_GIC
363 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000364 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500365 select CLKDEV_LOOKUP
366 select CPU_V7
367 select GENERIC_CLOCKEVENTS
368 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000369 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600370 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500371 select USE_OF
372 help
373 Support for the Calxeda Highbank SoC based boards.
374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100376 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000377 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000378 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400379 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000380 help
381 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300383config ARCH_CNS3XXX
384 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200385 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300386 select GENERIC_CLOCKEVENTS
387 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000388 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100389 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400390 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300391 help
392 Support for Cavium Networks CNS3XXX platform.
393
Russell King788c9702009-04-26 14:21:59 +0100394config ARCH_GEMINI
395 bool "Cortina Systems Gemini"
396 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100397 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000398 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100399 help
400 Support for the Cortina Systems Gemini family SoCs
401
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200402config ARCH_PRIMA2
403 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
404 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200405 select NO_IOPORT
406 select GENERIC_CLOCKEVENTS
407 select CLKDEV_LOOKUP
408 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000409 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800410 select PINCTRL
411 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200412 select USE_OF
413 select ZONE_DMA
414 help
415 Support for CSR SiRFSoC ARM Cortex A9 Platform
416
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417config ARCH_EBSA110
418 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000419 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100420 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000421 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000422 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600423 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400424 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 help
426 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000427 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428 Ethernet interface, two PCMCIA sockets, two serial ports and a
429 parallel port.
430
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000431config ARCH_EP93XX
432 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000433 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000434 select ARM_AMBA
435 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100436 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700437 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100438 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000439 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100440 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000441 help
442 This enables support for the Cirrus EP93xx series of CPUs.
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444config ARCH_FOOTBRIDGE
445 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000446 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000448 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200449 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600450 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400451 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000452 help
453 Support for systems based on the DC21285 companion chip
454 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455
Russell King788c9702009-04-26 14:21:59 +0100456config ARCH_MXC
457 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100458 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100459 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100460 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100461 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800462 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200463 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100464 help
465 Support for Freescale MXC/iMX-based family of processors
466
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800467config ARCH_MXS
468 bool "Freescale MXS-based"
469 select GENERIC_CLOCKEVENTS
470 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100471 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100472 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800473 select HAVE_CLK_PREPARE
Shawn Guoa0f5e362012-05-06 23:13:13 +0800474 select PINCTRL
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800475 help
476 Support for Freescale MXS-based family of processors
477
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100478config ARCH_NETX
479 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100480 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000481 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100482 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100483 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000484 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100485 This enables support for systems based on the Hilscher NetX Soc
486
487config ARCH_H720X
488 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000489 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100490 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000491 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100492 help
493 This enables support for systems based on the Hynix HMS720x
494
Russell King3b938be2007-05-12 11:25:44 +0100495config ARCH_IOP13XX
496 bool "IOP13xx-based"
497 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000498 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100499 select PLAT_IOP
500 select PCI
501 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100502 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600503 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400504 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600505 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100506 help
507 Support for Intel's IOP13XX (XScale) family of processors.
508
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100509config ARCH_IOP32X
510 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100511 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000512 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600513 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600514 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100515 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100516 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100517 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000518 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100519 Support for Intel's 80219 and IOP32X (XScale) family of
520 processors.
521
522config ARCH_IOP33X
523 bool "IOP33x-based"
524 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000525 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600526 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600527 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100528 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100529 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100530 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100531 help
532 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
Russell King3b938be2007-05-12 11:25:44 +0100534config ARCH_IXP23XX
535 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100536 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000537 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100538 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000539 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600540 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400541 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100542 help
Russell King3b938be2007-05-12 11:25:44 +0100543 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
545config ARCH_IXP2000
546 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100547 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000548 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100549 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000550 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600551 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400552 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000553 help
554 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555
Russell King3b938be2007-05-12 11:25:44 +0100556config ARCH_IXP4XX
557 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100558 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500559 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100560 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000561 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100562 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100563 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100564 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600565 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100566 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100567 help
Russell King3b938be2007-05-12 11:25:44 +0100568 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100569
Saeed Bisharaedabd382009-08-06 15:12:43 +0300570config ARCH_DOVE
571 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300572 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300573 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300574 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300575 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600576 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300577 select PLAT_ORION
578 help
579 Support for the Marvell Dove SoC 88AP510
580
Saeed Bishara651c74c2008-06-22 22:45:06 +0200581config ARCH_KIRKWOOD
582 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000583 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200584 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700585 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200586 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600587 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200588 select PLAT_ORION
589 help
590 Support for the following Marvell Kirkwood series SoCs:
591 88F6180, 88F6192 and 88F6281.
592
Kevin Wells40805942010-07-27 08:49:04 -0700593config ARCH_LPC32XX
594 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100595 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700596 select CPU_ARM926T
597 select ARCH_REQUIRE_GPIOLIB
598 select HAVE_IDE
599 select ARM_AMBA
600 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100601 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700602 select GENERIC_CLOCKEVENTS
603 help
604 Support for the NXP LPC32XX family of processors
605
Russell King788c9702009-04-26 14:21:59 +0100606config ARCH_MV78XX0
607 bool "Marvell MV78xx0"
608 select CPU_FEROCEON
609 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700610 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100611 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600612 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100613 select PLAT_ORION
614 help
615 Support for the following Marvell MV78xx0 series SoCs:
616 MV781x0, MV782x0.
617
618config ARCH_ORION5X
619 bool "Marvell Orion"
620 depends on MMU
621 select CPU_FEROCEON
622 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700623 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100624 select GENERIC_CLOCKEVENTS
625 select PLAT_ORION
626 help
627 Support for the following Marvell Orion 5x series SoCs:
628 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
629 Orion-2 (5281), Orion-1-90 (6183).
630
631config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500632 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100633 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100634 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100635 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100636 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800637 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100638 select TICK_ONESHOT
639 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400640 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800641 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100642 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500643 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100644
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100645config ARCH_KS8695
646 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000647 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100648 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000649 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400650 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100651 help
652 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
653 System-on-Chip devices.
654
Russell King788c9702009-04-26 14:21:59 +0100655config ARCH_W90X900
656 bool "Nuvoton W90X900 CPU"
657 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100658 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100659 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100660 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100661 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200662 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100663 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
664 At present, the w90x900 has been renamed nuc900, regarding
665 the ARM series product line, you can login the following
666 link address to know more.
667
668 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
669 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400670
Erik Gillingc5f80062010-01-21 16:53:02 -0800671config ARCH_TEGRA
672 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000673 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100674 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800675 select GENERIC_CLOCKEVENTS
676 select GENERIC_GPIO
677 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000678 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000679 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600680 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700681 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800682 help
683 This enables support for NVIDIA Tegra based systems (Tegra APX,
684 Tegra 6xx and Tegra 2 series).
685
Jamie Ilesaf756552011-07-25 17:36:42 +0100686config ARCH_PICOXCELL
687 bool "Picochip picoXcell"
688 select ARCH_REQUIRE_GPIOLIB
689 select ARM_PATCH_PHYS_VIRT
690 select ARM_VIC
691 select CPU_V6K
692 select DW_APB_TIMER
693 select GENERIC_CLOCKEVENTS
694 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100695 select HAVE_TCM
696 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000697 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100698 select USE_OF
699 help
700 This enables support for systems based on the Picochip picoXcell
701 family of Femtocell devices. The picoxcell support requires device tree
702 for all boards.
703
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100704config ARCH_PNX4008
705 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000706 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100707 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000708 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100709 help
710 This enables support for Philips PNX4008 mobile platform.
711
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700713 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100714 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500715 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100716 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100717 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100718 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700719 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100720 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800721 select GPIO_PXA
Russell Kinga88264c2007-11-12 22:45:16 +0000722 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800723 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800724 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800725 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800726 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200727 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200728 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000729 help
eric miao2c8086a2007-09-11 19:13:17 -0700730 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731
Russell King788c9702009-04-26 14:21:59 +0100732config ARCH_MSM
733 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500734 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800735 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700736 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800737 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800738 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800739 Support for Qualcomm MSM/QSD based systems. This runs on the
740 apps processor of the MSM/QSD and depends on a shared memory
741 interface to the modem processor which runs the baseband
742 stack and controls some vital subsystems
743 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800744
Magnus Dammc793c1b2010-02-05 11:14:49 +0000745config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900746 bool "Renesas SH-Mobile / R-Mobile"
747 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900748 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900749 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000750 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900751 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000752 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900753 select NO_IOPORT
754 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000755 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200756 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400757 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000758 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900759 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761config ARCH_RPC
762 bool "RiscPC"
763 select ARCH_ACORN
764 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100765 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100766 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000767 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000768 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100769 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000770 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200771 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600772 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400773 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774 help
775 On the Acorn Risc-PC, Linux can support the internal IDE disk and
776 CD-ROM interface, serial and parallel port, and the floppy drive.
777
778config ARCH_SA1100
779 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100780 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000781 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100782 select ISA
Russell King05944d72006-11-30 20:43:51 +0000783 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500784 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100785 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000786 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100787 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800788 select CLKDEV_LOOKUP
Russell King3e238be2008-04-14 23:03:10 +0100789 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700790 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200791 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400792 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100793 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000794 help
795 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900797config ARCH_S3C24XX
798 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800799 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100800 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700801 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900802 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000803 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900804 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900805 select HAVE_S3C_RTC if RTC_CLASS
806 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600807 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900809 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
810 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
811 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
812 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900813
Ben Dooksa08ab632008-10-21 14:06:39 +0100814config ARCH_S3C64XX
815 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000816 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900817 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900818 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100819 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900820 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900821 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900822 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000823 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100824 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900825 select ARCH_REQUIRE_GPIOLIB
826 select SAMSUNG_CLKSRC
827 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900828 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900829 select S3C_DEV_NAND
830 select USB_ARCH_HAS_OHCI
831 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900832 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900833 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100834 help
835 Samsung S3C64XX series based systems
836
Kukjin Kim49b7a492010-09-07 15:47:18 +0900837config ARCH_S5P64X0
838 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900839 select CPU_V6
840 select GENERIC_GPIO
841 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900842 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900843 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900844 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900845 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900846 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900847 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900848 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900849 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
850 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900851
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200852config ARCH_S5PC100
853 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900854 select GENERIC_GPIO
855 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900856 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900857 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900858 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900859 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900860 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900861 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900862 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200863 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900864
Kukjin Kim170f4e42010-02-24 16:40:44 +0900865config ARCH_S5PV210
866 bool "Samsung S5PV210/S5PC110"
867 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900868 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900869 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900870 select GENERIC_GPIO
871 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900872 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900873 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900874 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900875 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900876 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900877 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900878 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400879 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900880 help
881 Samsung S5PV210/S5PC110 series based systems
882
Kukjin Kim83014572011-11-06 13:54:56 +0900883config ARCH_EXYNOS
884 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900885 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900886 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900887 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900888 select GENERIC_GPIO
889 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900890 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900891 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900892 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900893 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900894 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900895 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400896 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900897 help
Kukjin Kim83014572011-11-06 13:54:56 +0900898 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900899
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900config ARCH_SHARK
901 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000902 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100903 select ISA
904 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100905 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100906 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000907 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400908 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600909 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000910 help
911 Support for the StrongARM based Digital DNARD machine, also known
912 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913
Linus Walleijd98aac72009-04-27 10:21:46 +0100914config ARCH_U300
915 bool "ST-Ericsson U300 Series"
916 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100917 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100918 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100919 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100920 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200921 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100922 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100923 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100924 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900925 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100926 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100927 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100928 help
929 Support for ST-Ericsson U300 series mobile platforms.
930
Russell Kingccf50e22010-03-15 19:03:06 +0000931config ARCH_U8500
932 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700933 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000934 select CPU_V7
935 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000936 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100937 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100938 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100939 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000940 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000941 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000942 help
943 Support for ST-Ericsson's Ux500 architecture
944
945config ARCH_NOMADIK
946 bool "STMicroelectronics Nomadik"
947 select ARM_AMBA
948 select ARM_VIC
949 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100950 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000951 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000952 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000953 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000954 select ARCH_REQUIRE_GPIOLIB
955 help
956 Support for the Nomadik platform by ST-Ericsson
957
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100958config ARCH_DAVINCI
959 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100960 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700961 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100962 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700963 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100964 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700965 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100966 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530967 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100968 help
969 Support for TI's DaVinci platform.
970
Russell King3b938be2007-05-12 11:25:44 +0100971config ARCH_OMAP
972 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700973 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700974 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100975 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700976 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700977 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800978 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100979 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200980 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100981
viresh kumarcee37e52010-04-01 12:31:05 +0100982config PLAT_SPEAR
983 bool "ST SPEAr"
984 select ARM_AMBA
985 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100986 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100987 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100988 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100989 select HAVE_CLK
990 help
991 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
992
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100993config ARCH_VT8500
994 bool "VIA/WonderMedia 85xx"
995 select CPU_ARM926T
996 select GENERIC_GPIO
997 select ARCH_HAS_CPUFREQ
998 select GENERIC_CLOCKEVENTS
999 select ARCH_REQUIRE_GPIOLIB
1000 select HAVE_PWM
1001 help
1002 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +08001003
John Linnb85a3ef2011-06-20 11:47:27 -06001004config ARCH_ZYNQ
1005 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001006 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001007 select GENERIC_CLOCKEVENTS
1008 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001009 select ARM_GIC
1010 select ARM_AMBA
1011 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001012 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001013 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001014 help
John Linnb85a3ef2011-06-20 11:47:27 -06001015 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016endchoice
1017
Russell Kingccf50e22010-03-15 19:03:06 +00001018#
1019# This is sorted alphabetically by mach-* pathname. However, plat-*
1020# Kconfigs may be included either alphabetically (according to the
1021# plat- suffix) or along side the corresponding mach-* source.
1022#
Russell King95b8f202010-01-14 11:43:54 +00001023source "arch/arm/mach-at91/Kconfig"
1024
1025source "arch/arm/mach-bcmring/Kconfig"
1026
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027source "arch/arm/mach-clps711x/Kconfig"
1028
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001029source "arch/arm/mach-cns3xxx/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/mach-davinci/Kconfig"
1032
1033source "arch/arm/mach-dove/Kconfig"
1034
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001035source "arch/arm/mach-ep93xx/Kconfig"
1036
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037source "arch/arm/mach-footbridge/Kconfig"
1038
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001039source "arch/arm/mach-gemini/Kconfig"
1040
Russell King95b8f202010-01-14 11:43:54 +00001041source "arch/arm/mach-h720x/Kconfig"
1042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043source "arch/arm/mach-integrator/Kconfig"
1044
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001045source "arch/arm/mach-iop32x/Kconfig"
1046
1047source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048
Dan Williams285f5fa2006-12-07 02:59:39 +01001049source "arch/arm/mach-iop13xx/Kconfig"
1050
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051source "arch/arm/mach-ixp4xx/Kconfig"
1052
1053source "arch/arm/mach-ixp2000/Kconfig"
1054
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001055source "arch/arm/mach-ixp23xx/Kconfig"
1056
Russell King95b8f202010-01-14 11:43:54 +00001057source "arch/arm/mach-kirkwood/Kconfig"
1058
1059source "arch/arm/mach-ks8695/Kconfig"
1060
Kevin Wells40805942010-07-27 08:49:04 -07001061source "arch/arm/mach-lpc32xx/Kconfig"
1062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/mach-msm/Kconfig"
1064
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001065source "arch/arm/mach-mv78xx0/Kconfig"
1066
Russell King95b8f202010-01-14 11:43:54 +00001067source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001069source "arch/arm/mach-mxs/Kconfig"
1070
Russell King95b8f202010-01-14 11:43:54 +00001071source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001072
Russell King95b8f202010-01-14 11:43:54 +00001073source "arch/arm/mach-nomadik/Kconfig"
1074source "arch/arm/plat-nomadik/Kconfig"
1075
Tony Lindgrend48af152005-07-10 19:58:17 +01001076source "arch/arm/plat-omap/Kconfig"
1077
1078source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Tony Lindgren1dbae812005-11-10 14:26:51 +00001080source "arch/arm/mach-omap2/Kconfig"
1081
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001082source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-pxa/Kconfig"
1085source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086
Russell King95b8f202010-01-14 11:43:54 +00001087source "arch/arm/mach-mmp/Kconfig"
1088
1089source "arch/arm/mach-realview/Kconfig"
1090
1091source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001092
Ben Dookscf383672009-11-10 00:14:58 +00001093source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001094source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001095source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001096
viresh kumarcee37e52010-04-01 12:31:05 +01001097source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001098
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001099source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001100if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001101source "arch/arm/mach-s3c2412/Kconfig"
1102source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001103endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001104
Ben Dooksa08ab632008-10-21 14:06:39 +01001105if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001106source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001107endif
1108
Kukjin Kim49b7a492010-09-07 15:47:18 +09001109source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001110
Byungho Min5a7652f2009-06-23 21:39:42 +09001111source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001112
Kukjin Kim170f4e42010-02-24 16:40:44 +09001113source "arch/arm/mach-s5pv210/Kconfig"
1114
Kukjin Kim83014572011-11-06 13:54:56 +09001115source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001116
Russell King882d01f2010-03-02 23:40:15 +00001117source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Erik Gillingc5f80062010-01-21 16:53:02 -08001119source "arch/arm/mach-tegra/Kconfig"
1120
Russell King95b8f202010-01-14 11:43:54 +00001121source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122
Russell King95b8f202010-01-14 11:43:54 +00001123source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
1125source "arch/arm/mach-versatile/Kconfig"
1126
Russell Kingceade892010-02-11 21:44:53 +00001127source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001128source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001129
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001130source "arch/arm/mach-vt8500/Kconfig"
1131
wanzongshun7ec80dd2008-12-03 03:55:38 +01001132source "arch/arm/mach-w90x900/Kconfig"
1133
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134# Definitions to make life easier
1135config ARCH_ACORN
1136 bool
1137
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001138config PLAT_IOP
1139 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001140 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001141
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001142config PLAT_ORION
1143 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001144 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001145 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001146
Eric Miaobd5ce432009-01-20 12:06:01 +08001147config PLAT_PXA
1148 bool
1149
Russell Kingf4b8b312010-01-14 12:48:06 +00001150config PLAT_VERSATILE
1151 bool
1152
Russell Kinge3887712010-01-14 13:30:16 +00001153config ARM_TIMER_SP804
1154 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001155 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001156 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001157
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158source arch/arm/mm/Kconfig
1159
Russell King958cab02011-12-11 10:04:00 +00001160config ARM_NR_BANKS
1161 int
1162 default 16 if ARCH_EP93XX
1163 default 8
1164
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001165config IWMMXT
1166 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001167 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1168 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001169 help
1170 Enable support for iWMMXt context switching at run time if
1171 running on a CPU that supports it.
1172
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173config XSCALE_PMU
1174 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001175 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176 default y
1177
Jamie Iles0f4f0672010-02-02 20:23:15 +01001178config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001179 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001180 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001181 default y
1182 bool
1183
eric miao52108642010-12-13 09:42:34 +01001184config MULTI_IRQ_HANDLER
1185 bool
1186 help
1187 Allow each machine to specify it's own IRQ handler at run time.
1188
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001189if !MMU
1190source "arch/arm/Kconfig-nommu"
1191endif
1192
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001193config ARM_ERRATA_411920
1194 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001195 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001196 help
1197 Invalidation of the Instruction Cache operation can
1198 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1199 It does not affect the MPCore. This option enables the ARM Ltd.
1200 recommended workaround.
1201
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001202config ARM_ERRATA_430973
1203 bool "ARM errata: Stale prediction on replaced interworking branch"
1204 depends on CPU_V7
1205 help
1206 This option enables the workaround for the 430973 Cortex-A8
1207 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1208 interworking branch is replaced with another code sequence at the
1209 same virtual address, whether due to self-modifying code or virtual
1210 to physical address re-mapping, Cortex-A8 does not recover from the
1211 stale interworking branch prediction. This results in Cortex-A8
1212 executing the new code sequence in the incorrect ARM or Thumb state.
1213 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1214 and also flushes the branch target cache at every context switch.
1215 Note that setting specific bits in the ACTLR register may not be
1216 available in non-secure mode.
1217
Catalin Marinas855c5512009-04-30 17:06:15 +01001218config ARM_ERRATA_458693
1219 bool "ARM errata: Processor deadlock when a false hazard is created"
1220 depends on CPU_V7
1221 help
1222 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1223 erratum. For very specific sequences of memory operations, it is
1224 possible for a hazard condition intended for a cache line to instead
1225 be incorrectly associated with a different cache line. This false
1226 hazard might then cause a processor deadlock. The workaround enables
1227 the L1 caching of the NEON accesses and disables the PLD instruction
1228 in the ACTLR register. Note that setting specific bits in the ACTLR
1229 register may not be available in non-secure mode.
1230
Catalin Marinas0516e462009-04-30 17:06:20 +01001231config ARM_ERRATA_460075
1232 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1233 depends on CPU_V7
1234 help
1235 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1236 erratum. Any asynchronous access to the L2 cache may encounter a
1237 situation in which recent store transactions to the L2 cache are lost
1238 and overwritten with stale memory contents from external memory. The
1239 workaround disables the write-allocate mode for the L2 cache via the
1240 ACTLR register. Note that setting specific bits in the ACTLR register
1241 may not be available in non-secure mode.
1242
Will Deacon9f050272010-09-14 09:51:43 +01001243config ARM_ERRATA_742230
1244 bool "ARM errata: DMB operation may be faulty"
1245 depends on CPU_V7 && SMP
1246 help
1247 This option enables the workaround for the 742230 Cortex-A9
1248 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1249 between two write operations may not ensure the correct visibility
1250 ordering of the two writes. This workaround sets a specific bit in
1251 the diagnostic register of the Cortex-A9 which causes the DMB
1252 instruction to behave as a DSB, ensuring the correct behaviour of
1253 the two writes.
1254
Will Deacona672e992010-09-14 09:53:02 +01001255config ARM_ERRATA_742231
1256 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1257 depends on CPU_V7 && SMP
1258 help
1259 This option enables the workaround for the 742231 Cortex-A9
1260 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1261 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1262 accessing some data located in the same cache line, may get corrupted
1263 data due to bad handling of the address hazard when the line gets
1264 replaced from one of the CPUs at the same time as another CPU is
1265 accessing it. This workaround sets specific bits in the diagnostic
1266 register of the Cortex-A9 which reduces the linefill issuing
1267 capabilities of the processor.
1268
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001269config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001270 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001271 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001272 help
1273 The PL310 L2 cache controller implements three types of Clean &
1274 Invalidate maintenance operations: by Physical Address
1275 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1276 They are architecturally defined to behave as the execution of a
1277 clean operation followed immediately by an invalidate operation,
1278 both performing to the same memory location. This functionality
1279 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001280 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001281
1282config ARM_ERRATA_720789
1283 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001284 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001285 help
1286 This option enables the workaround for the 720789 Cortex-A9 (prior to
1287 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1288 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1289 As a consequence of this erratum, some TLB entries which should be
1290 invalidated are not, resulting in an incoherency in the system page
1291 tables. The workaround changes the TLB flushing routines to invalidate
1292 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001293
Russell King1f0090a2011-03-16 23:35:25 +00001294config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001295 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001296 depends on CACHE_L2X0
1297 help
1298 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1299 operation (offset 0x7FC). This operation runs in background so that
1300 PL310 can handle normal accesses while it is in progress. Under very
1301 rare circumstances, due to this erratum, write data can be lost when
1302 PL310 treats a cacheable write transaction during a Clean &
1303 Invalidate by Way operation.
1304
Will Deacon475d92f2010-09-28 14:02:02 +01001305config ARM_ERRATA_743622
1306 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1307 depends on CPU_V7
1308 help
1309 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001310 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001311 optimisation in the Cortex-A9 Store Buffer may lead to data
1312 corruption. This workaround sets a specific bit in the diagnostic
1313 register of the Cortex-A9 which disables the Store Buffer
1314 optimisation, preventing the defect from occurring. This has no
1315 visible impact on the overall performance or power consumption of the
1316 processor.
1317
Will Deacon9a27c272011-02-18 16:36:35 +01001318config ARM_ERRATA_751472
1319 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001320 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001321 help
1322 This option enables the workaround for the 751472 Cortex-A9 (prior
1323 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1324 completion of a following broadcasted operation if the second
1325 operation is received by a CPU before the ICIALLUIS has completed,
1326 potentially leading to corrupted entries in the cache or TLB.
1327
Will Deaconfa0ce402011-11-14 17:24:57 +01001328config PL310_ERRATA_753970
1329 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001330 depends on CACHE_PL310
1331 help
1332 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1333
1334 Under some condition the effect of cache sync operation on
1335 the store buffer still remains when the operation completes.
1336 This means that the store buffer is always asked to drain and
1337 this prevents it from merging any further writes. The workaround
1338 is to replace the normal offset of cache sync operation (0x730)
1339 by another offset targeting an unmapped PL310 register 0x740.
1340 This has the same effect as the cache sync operation: store buffer
1341 drain and waiting for all buffers empty.
1342
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001343config ARM_ERRATA_754322
1344 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1345 depends on CPU_V7
1346 help
1347 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1348 r3p*) erratum. A speculative memory access may cause a page table walk
1349 which starts prior to an ASID switch but completes afterwards. This
1350 can populate the micro-TLB with a stale entry which may be hit with
1351 the new ASID. This workaround places two dsb instructions in the mm
1352 switching code so that no page table walks can cross the ASID switch.
1353
Will Deacon5dab26af2011-03-04 12:38:54 +01001354config ARM_ERRATA_754327
1355 bool "ARM errata: no automatic Store Buffer drain"
1356 depends on CPU_V7 && SMP
1357 help
1358 This option enables the workaround for the 754327 Cortex-A9 (prior to
1359 r2p0) erratum. The Store Buffer does not have any automatic draining
1360 mechanism and therefore a livelock may occur if an external agent
1361 continuously polls a memory location waiting to observe an update.
1362 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1363 written polling loops from denying visibility of updates to memory.
1364
Catalin Marinas145e10e2011-08-15 11:04:41 +01001365config ARM_ERRATA_364296
1366 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1367 depends on CPU_V6 && !SMP
1368 help
1369 This options enables the workaround for the 364296 ARM1136
1370 r0p2 erratum (possible cache data corruption with
1371 hit-under-miss enabled). It sets the undocumented bit 31 in
1372 the auxiliary control register and the FI bit in the control
1373 register, thus disabling hit-under-miss without putting the
1374 processor into full low interrupt latency mode. ARM11MPCore
1375 is not affected.
1376
Will Deaconf630c1b2011-09-15 11:45:15 +01001377config ARM_ERRATA_764369
1378 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1379 depends on CPU_V7 && SMP
1380 help
1381 This option enables the workaround for erratum 764369
1382 affecting Cortex-A9 MPCore with two or more processors (all
1383 current revisions). Under certain timing circumstances, a data
1384 cache line maintenance operation by MVA targeting an Inner
1385 Shareable memory region may fail to proceed up to either the
1386 Point of Coherency or to the Point of Unification of the
1387 system. This workaround adds a DSB instruction before the
1388 relevant cache maintenance functions and sets a specific bit
1389 in the diagnostic control register of the SCU.
1390
Will Deacon11ed0ba2011-11-14 17:24:58 +01001391config PL310_ERRATA_769419
1392 bool "PL310 errata: no automatic Store Buffer drain"
1393 depends on CACHE_L2X0
1394 help
1395 On revisions of the PL310 prior to r3p2, the Store Buffer does
1396 not automatically drain. This can cause normal, non-cacheable
1397 writes to be retained when the memory system is idle, leading
1398 to suboptimal I/O performance for drivers using coherent DMA.
1399 This option adds a write barrier to the cpu_idle loop so that,
1400 on systems with an outer cache, the store buffer is drained
1401 explicitly.
1402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403endmenu
1404
1405source "arch/arm/common/Kconfig"
1406
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407menu "Bus support"
1408
1409config ARM_AMBA
1410 bool
1411
1412config ISA
1413 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414 help
1415 Find out whether you have ISA slots on your motherboard. ISA is the
1416 name of a bus system, i.e. the way the CPU talks to the other stuff
1417 inside your box. Other bus systems are PCI, EISA, MicroChannel
1418 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1419 newer boards don't support it. If you have ISA, say Y, otherwise N.
1420
Russell King065909b2006-01-04 15:44:16 +00001421# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422config ISA_DMA
1423 bool
Russell King065909b2006-01-04 15:44:16 +00001424 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425
Russell King065909b2006-01-04 15:44:16 +00001426# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001427config ISA_DMA_API
1428 bool
Al Viro5cae8412005-05-04 05:39:22 +01001429
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001431 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 help
1433 Find out whether you have a PCI motherboard. PCI is the name of a
1434 bus system, i.e. the way the CPU talks to the other stuff inside
1435 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1436 VESA. If you have PCI, say Y, otherwise N.
1437
Anton Vorontsov52882172010-04-19 13:20:49 +01001438config PCI_DOMAINS
1439 bool
1440 depends on PCI
1441
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001442config PCI_NANOENGINE
1443 bool "BSE nanoEngine PCI support"
1444 depends on SA1100_NANOENGINE
1445 help
1446 Enable PCI on the BSE nanoEngine board.
1447
Matthew Wilcox36e23592007-07-10 10:54:40 -06001448config PCI_SYSCALL
1449 def_bool PCI
1450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451# Select the host bridge type
1452config PCI_HOST_VIA82C505
1453 bool
1454 depends on PCI && ARCH_SHARK
1455 default y
1456
Mike Rapoporta0113a92007-11-25 08:55:34 +01001457config PCI_HOST_ITE8152
1458 bool
1459 depends on PCI && MACH_ARMCORE
1460 default y
1461 select DMABOUNCE
1462
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463source "drivers/pci/Kconfig"
1464
1465source "drivers/pcmcia/Kconfig"
1466
1467endmenu
1468
1469menu "Kernel Features"
1470
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001471source "kernel/time/Kconfig"
1472
Dave Martin3b556582011-12-07 15:38:04 +00001473config HAVE_SMP
1474 bool
1475 help
1476 This option should be selected by machines which have an SMP-
1477 capable CPU.
1478
1479 The only effect of this option is to make the SMP-related
1480 options available to the user for configuration.
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001483 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001484 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001485 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001486 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001487 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001488 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001489 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490 help
1491 This enables support for systems with more than one CPU. If you have
1492 a system with only one CPU, like most personal computers, say N. If
1493 you have a system with more than one CPU, say Y.
1494
1495 If you say N here, the kernel will run on single and multiprocessor
1496 machines, but will use only one CPU of a multiprocessor machine. If
1497 you say Y here, the kernel will run on many, but not all, single
1498 processor machines. On a single processor machine, the kernel will
1499 run faster if you say N here.
1500
Paul Bolle395cf962011-08-15 02:02:26 +02001501 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001503 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504
1505 If you don't know what to do here, say N.
1506
Russell Kingf00ec482010-09-04 10:47:48 +01001507config SMP_ON_UP
1508 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1509 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001510 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001511 default y
1512 help
1513 SMP kernels contain instructions which fail on non-SMP processors.
1514 Enabling this option allows the kernel to modify itself to make
1515 these instructions safe. Disabling it allows about 1K of space
1516 savings.
1517
1518 If you don't know what to do here, say Y.
1519
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001520config ARM_CPU_TOPOLOGY
1521 bool "Support cpu topology definition"
1522 depends on SMP && CPU_V7
1523 default y
1524 help
1525 Support ARM cpu topology definition. The MPIDR register defines
1526 affinity between processors which is then used to describe the cpu
1527 topology of an ARM System.
1528
1529config SCHED_MC
1530 bool "Multi-core scheduler support"
1531 depends on ARM_CPU_TOPOLOGY
1532 help
1533 Multi-core scheduler support improves the CPU scheduler's decision
1534 making when dealing with multi-core CPU chips at a cost of slightly
1535 increased overhead in some places. If unsure say N here.
1536
1537config SCHED_SMT
1538 bool "SMT scheduler support"
1539 depends on ARM_CPU_TOPOLOGY
1540 help
1541 Improves the CPU scheduler's decision making when dealing with
1542 MultiThreading at a cost of slightly increased overhead in some
1543 places. If unsure say N here.
1544
Russell Kinga8cbcd92009-05-16 11:51:14 +01001545config HAVE_ARM_SCU
1546 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001547 help
1548 This option enables support for the ARM system coherency unit
1549
Russell Kingf32f4ce2009-05-16 12:14:21 +01001550config HAVE_ARM_TWD
1551 bool
1552 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001553 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001554 help
1555 This options enables support for the ARM timer and watchdog unit
1556
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001557choice
1558 prompt "Memory split"
1559 default VMSPLIT_3G
1560 help
1561 Select the desired split between kernel and user memory.
1562
1563 If you are not absolutely sure what you are doing, leave this
1564 option alone!
1565
1566 config VMSPLIT_3G
1567 bool "3G/1G user/kernel split"
1568 config VMSPLIT_2G
1569 bool "2G/2G user/kernel split"
1570 config VMSPLIT_1G
1571 bool "1G/3G user/kernel split"
1572endchoice
1573
1574config PAGE_OFFSET
1575 hex
1576 default 0x40000000 if VMSPLIT_1G
1577 default 0x80000000 if VMSPLIT_2G
1578 default 0xC0000000
1579
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580config NR_CPUS
1581 int "Maximum number of CPUs (2-32)"
1582 range 2 32
1583 depends on SMP
1584 default "4"
1585
Russell Kinga054a812005-11-02 22:24:33 +00001586config HOTPLUG_CPU
1587 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1588 depends on SMP && HOTPLUG && EXPERIMENTAL
1589 help
1590 Say Y here to experiment with turning CPUs off and on. CPUs
1591 can be controlled through /sys/devices/system/cpu.
1592
Russell King37ee16a2005-11-08 19:08:05 +00001593config LOCAL_TIMERS
1594 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001595 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001596 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001597 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001598 help
1599 Enable support for local timers on SMP platforms, rather then the
1600 legacy IPI broadcast method. Local timers allows the system
1601 accounting to be spread across the timer interval, preventing a
1602 "thundering herd" at every timer tick.
1603
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001604config ARCH_NR_GPIO
1605 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001606 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001607 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001608 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001609 default 0
1610 help
1611 Maximum number of GPIOs in the system.
1612
1613 If unsure, leave the default value.
1614
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001615source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616
Russell Kingf8065812006-03-02 22:41:59 +00001617config HZ
1618 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001619 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001620 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001621 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001622 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001623 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001624 default 100
1625
Catalin Marinas16c79652009-07-24 12:33:02 +01001626config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001627 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001628 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001629 select AEABI
1630 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001631 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001632 help
1633 By enabling this option, the kernel will be compiled in
1634 Thumb-2 mode. A compiler/assembler that understand the unified
1635 ARM-Thumb syntax is needed.
1636
1637 If unsure, say N.
1638
Dave Martin6f685c52011-03-03 11:41:12 +01001639config THUMB2_AVOID_R_ARM_THM_JUMP11
1640 bool "Work around buggy Thumb-2 short branch relocations in gas"
1641 depends on THUMB2_KERNEL && MODULES
1642 default y
1643 help
1644 Various binutils versions can resolve Thumb-2 branches to
1645 locally-defined, preemptible global symbols as short-range "b.n"
1646 branch instructions.
1647
1648 This is a problem, because there's no guarantee the final
1649 destination of the symbol, or any candidate locations for a
1650 trampoline, are within range of the branch. For this reason, the
1651 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1652 relocation in modules at all, and it makes little sense to add
1653 support.
1654
1655 The symptom is that the kernel fails with an "unsupported
1656 relocation" error when loading some modules.
1657
1658 Until fixed tools are available, passing
1659 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1660 code which hits this problem, at the cost of a bit of extra runtime
1661 stack usage in some cases.
1662
1663 The problem is described in more detail at:
1664 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1665
1666 Only Thumb-2 kernels are affected.
1667
1668 Unless you are sure your tools don't have this problem, say Y.
1669
Catalin Marinas0becb082009-07-24 12:32:53 +01001670config ARM_ASM_UNIFIED
1671 bool
1672
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001673config AEABI
1674 bool "Use the ARM EABI to compile the kernel"
1675 help
1676 This option allows for the kernel to be compiled using the latest
1677 ARM ABI (aka EABI). This is only useful if you are using a user
1678 space environment that is also compiled with EABI.
1679
1680 Since there are major incompatibilities between the legacy ABI and
1681 EABI, especially with regard to structure member alignment, this
1682 option also changes the kernel syscall calling convention to
1683 disambiguate both ABIs and allow for backward compatibility support
1684 (selected with CONFIG_OABI_COMPAT).
1685
1686 To use this you need GCC version 4.0.0 or later.
1687
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001688config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001689 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001690 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001691 default y
1692 help
1693 This option preserves the old syscall interface along with the
1694 new (ARM EABI) one. It also provides a compatibility layer to
1695 intercept syscalls that have structure arguments which layout
1696 in memory differs between the legacy ABI and the new ARM EABI
1697 (only for non "thumb" binaries). This option adds a tiny
1698 overhead to all syscalls and produces a slightly larger kernel.
1699 If you know you'll be using only pure EABI user space then you
1700 can say N here. If this option is not selected and you attempt
1701 to execute a legacy ABI binary then the result will be
1702 UNPREDICTABLE (in fact it can be predicted that it won't work
1703 at all). If in doubt say Y.
1704
Mel Gormaneb335752009-05-13 17:34:48 +01001705config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001706 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001707
Russell King05944d72006-11-30 20:43:51 +00001708config ARCH_SPARSEMEM_ENABLE
1709 bool
1710
Russell King07a2f732008-10-01 21:39:58 +01001711config ARCH_SPARSEMEM_DEFAULT
1712 def_bool ARCH_SPARSEMEM_ENABLE
1713
Russell King05944d72006-11-30 20:43:51 +00001714config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001715 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001716
Will Deacon7b7bf492011-05-19 13:21:14 +01001717config HAVE_ARCH_PFN_VALID
1718 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1719
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001720config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001721 bool "High Memory Support"
1722 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001723 help
1724 The address space of ARM processors is only 4 Gigabytes large
1725 and it has to accommodate user address space, kernel address
1726 space as well as some memory mapped IO. That means that, if you
1727 have a large amount of physical memory and/or IO, not all of the
1728 memory can be "permanently mapped" by the kernel. The physical
1729 memory that is not permanently mapped is called "high memory".
1730
1731 Depending on the selected kernel/user memory split, minimum
1732 vmalloc space and actual amount of RAM, you may not need this
1733 option which should result in a slightly faster kernel.
1734
1735 If unsure, say n.
1736
Russell King65cec8e2009-08-17 20:02:06 +01001737config HIGHPTE
1738 bool "Allocate 2nd-level pagetables from highmem"
1739 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001740
Jamie Iles1b8873a2010-02-02 20:25:44 +01001741config HW_PERF_EVENTS
1742 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001743 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001744 default y
1745 help
1746 Enable hardware performance counter support for perf events. If
1747 disabled, perf events will use software events only.
1748
Dave Hansen3f22ab22005-06-23 00:07:43 -07001749source "mm/Kconfig"
1750
Magnus Dammc1b2d972010-07-05 10:00:11 +01001751config FORCE_MAX_ZONEORDER
1752 int "Maximum zone order" if ARCH_SHMOBILE
1753 range 11 64 if ARCH_SHMOBILE
1754 default "9" if SA1111
1755 default "11"
1756 help
1757 The kernel memory allocator divides physically contiguous memory
1758 blocks into "zones", where each zone is a power of two number of
1759 pages. This option selects the largest power of two that the kernel
1760 keeps in the memory allocator. If you need to allocate very large
1761 blocks of physically contiguous memory, then you may need to
1762 increase this value.
1763
1764 This config option is actually maximum order plus one. For example,
1765 a value of 11 means that the largest free memory block is 2^10 pages.
1766
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767config LEDS
1768 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001769 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001770 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1772 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001773 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001774 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001775 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 help
1777 If you say Y here, the LEDs on your machine will be used
1778 to provide useful information about your current system status.
1779
1780 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1781 be able to select which LEDs are active using the options below. If
1782 you are compiling a kernel for the EBSA-110 or the LART however, the
1783 red LED will simply flash regularly to indicate that the system is
1784 still functional. It is safe to say Y here if you have a CATS
1785 system, but the driver will do nothing.
1786
1787config LEDS_TIMER
1788 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001789 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1790 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001792 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 default y if ARCH_EBSA110
1794 help
1795 If you say Y here, one of the system LEDs (the green one on the
1796 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1797 will flash regularly to indicate that the system is still
1798 operational. This is mainly useful to kernel hackers who are
1799 debugging unstable kernels.
1800
1801 The LART uses the same LED for both Timer LED and CPU usage LED
1802 functions. You may choose to use both, but the Timer LED function
1803 will overrule the CPU usage LED.
1804
1805config LEDS_CPU
1806 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001807 !ARCH_OMAP) \
1808 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1809 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810 depends on LEDS
1811 help
1812 If you say Y here, the red LED will be used to give a good real
1813 time indication of CPU usage, by lighting whenever the idle task
1814 is not currently executing.
1815
1816 The LART uses the same LED for both Timer LED and CPU usage LED
1817 functions. You may choose to use both, but the Timer LED function
1818 will overrule the CPU usage LED.
1819
1820config ALIGNMENT_TRAP
1821 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001822 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001824 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001826 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1828 address divisible by 4. On 32-bit ARM processors, these non-aligned
1829 fetch/store instructions will be emulated in software if you say
1830 here, which has a severe performance impact. This is necessary for
1831 correct operation of some network protocols. With an IP-only
1832 configuration it is safe to say N, otherwise say Y.
1833
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001834config UACCESS_WITH_MEMCPY
1835 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1836 depends on MMU && EXPERIMENTAL
1837 default y if CPU_FEROCEON
1838 help
1839 Implement faster copy_to_user and clear_user methods for CPU
1840 cores where a 8-word STM instruction give significantly higher
1841 memory write throughput than a sequence of individual 32bit stores.
1842
1843 A possible side effect is a slight increase in scheduling latency
1844 between threads sharing the same address space if they invoke
1845 such copy operations with large buffers.
1846
1847 However, if the CPU data cache is using a write-allocate mode,
1848 this option is unlikely to provide any performance gain.
1849
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001850config SECCOMP
1851 bool
1852 prompt "Enable seccomp to safely compute untrusted bytecode"
1853 ---help---
1854 This kernel feature is useful for number crunching applications
1855 that may need to compute untrusted bytecode during their
1856 execution. By using pipes or other transports made available to
1857 the process as file descriptors supporting the read/write
1858 syscalls, it's possible to isolate those applications in
1859 their own address space using seccomp. Once seccomp is
1860 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1861 and the task is only allowed to execute a few safe syscalls
1862 defined by each seccomp mode.
1863
Nicolas Pitrec743f382010-05-24 23:55:42 -04001864config CC_STACKPROTECTOR
1865 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001866 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001867 help
1868 This option turns on the -fstack-protector GCC feature. This
1869 feature puts, at the beginning of functions, a canary value on
1870 the stack just before the return address, and validates
1871 the value just before actually returning. Stack based buffer
1872 overflows (that need to overwrite this return address) now also
1873 overwrite the canary, which gets detected and the attack is then
1874 neutralized via a kernel panic.
1875 This feature requires gcc version 4.2 or above.
1876
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001877config DEPRECATED_PARAM_STRUCT
1878 bool "Provide old way to pass kernel parameters"
1879 help
1880 This was deprecated in 2001 and announced to live on for 5 years.
1881 Some old boot loaders still use this way.
1882
Linus Torvalds1da177e2005-04-16 15:20:36 -07001883endmenu
1884
1885menu "Boot options"
1886
Grant Likely9eb8f672011-04-28 14:27:20 -06001887config USE_OF
1888 bool "Flattened Device Tree support"
1889 select OF
1890 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001891 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001892 help
1893 Include support for flattened device tree machine descriptions.
1894
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895# Compressed boot loader in ROM. Yes, we really want to ask about
1896# TEXT and BSS so we preserve their values in the config files.
1897config ZBOOT_ROM_TEXT
1898 hex "Compressed ROM boot loader base address"
1899 default "0"
1900 help
1901 The physical address at which the ROM-able zImage is to be
1902 placed in the target. Platforms which normally make use of
1903 ROM-able zImage formats normally set this to a suitable
1904 value in their defconfig file.
1905
1906 If ZBOOT_ROM is not enabled, this has no effect.
1907
1908config ZBOOT_ROM_BSS
1909 hex "Compressed ROM boot loader BSS address"
1910 default "0"
1911 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001912 The base address of an area of read/write memory in the target
1913 for the ROM-able zImage which must be available while the
1914 decompressor is running. It must be large enough to hold the
1915 entire decompressed kernel plus an additional 128 KiB.
1916 Platforms which normally make use of ROM-able zImage formats
1917 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001918
1919 If ZBOOT_ROM is not enabled, this has no effect.
1920
1921config ZBOOT_ROM
1922 bool "Compressed boot loader in ROM/flash"
1923 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1924 help
1925 Say Y here if you intend to execute your compressed kernel image
1926 (zImage) directly from ROM or flash. If unsure, say N.
1927
Simon Horman090ab3f2011-04-26 06:29:53 +01001928choice
1929 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1930 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1931 default ZBOOT_ROM_NONE
1932 help
1933 Include experimental SD/MMC loading code in the ROM-able zImage.
1934 With this enabled it is possible to write the the ROM-able zImage
1935 kernel image to an MMC or SD card and boot the kernel straight
1936 from the reset vector. At reset the processor Mask ROM will load
1937 the first part of the the ROM-able zImage which in turn loads the
1938 rest the kernel image to RAM.
1939
1940config ZBOOT_ROM_NONE
1941 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1942 help
1943 Do not load image from SD or MMC
1944
Simon Hormanf45b1142011-01-11 04:01:08 +01001945config ZBOOT_ROM_MMCIF
1946 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001947 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001948 Load image from MMCIF hardware block.
1949
1950config ZBOOT_ROM_SH_MOBILE_SDHI
1951 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1952 help
1953 Load image from SDHI hardware block
1954
1955endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001956
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001957config ARM_APPENDED_DTB
1958 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1959 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1960 help
1961 With this option, the boot code will look for a device tree binary
1962 (DTB) appended to zImage
1963 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1964
1965 This is meant as a backward compatibility convenience for those
1966 systems with a bootloader that can't be upgraded to accommodate
1967 the documented boot protocol using a device tree.
1968
1969 Beware that there is very little in terms of protection against
1970 this option being confused by leftover garbage in memory that might
1971 look like a DTB header after a reboot if no actual DTB is appended
1972 to zImage. Do not leave this option active in a production kernel
1973 if you don't intend to always append a DTB. Proper passing of the
1974 location into r2 of a bootloader provided DTB is always preferable
1975 to this option.
1976
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001977config ARM_ATAG_DTB_COMPAT
1978 bool "Supplement the appended DTB with traditional ATAG information"
1979 depends on ARM_APPENDED_DTB
1980 help
1981 Some old bootloaders can't be updated to a DTB capable one, yet
1982 they provide ATAGs with memory configuration, the ramdisk address,
1983 the kernel cmdline string, etc. Such information is dynamically
1984 provided by the bootloader and can't always be stored in a static
1985 DTB. To allow a device tree enabled kernel to be used with such
1986 bootloaders, this option allows zImage to extract the information
1987 from the ATAG list and store it at run time into the appended DTB.
1988
Linus Torvalds1da177e2005-04-16 15:20:36 -07001989config CMDLINE
1990 string "Default kernel command string"
1991 default ""
1992 help
1993 On some architectures (EBSA110 and CATS), there is currently no way
1994 for the boot loader to pass arguments to the kernel. For these
1995 architectures, you should supply some command-line options at build
1996 time by entering them here. As a minimum, you should specify the
1997 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1998
Victor Boivie4394c122011-05-04 17:07:55 +01001999choice
2000 prompt "Kernel command line type" if CMDLINE != ""
2001 default CMDLINE_FROM_BOOTLOADER
2002
2003config CMDLINE_FROM_BOOTLOADER
2004 bool "Use bootloader kernel arguments if available"
2005 help
2006 Uses the command-line options passed by the boot loader. If
2007 the boot loader doesn't provide any, the default kernel command
2008 string provided in CMDLINE will be used.
2009
2010config CMDLINE_EXTEND
2011 bool "Extend bootloader kernel arguments"
2012 help
2013 The command-line arguments provided by the boot loader will be
2014 appended to the default kernel command string.
2015
Alexander Holler92d20402010-02-16 19:04:53 +01002016config CMDLINE_FORCE
2017 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002018 help
2019 Always use the default kernel command string, even if the boot
2020 loader passes other arguments to the kernel.
2021 This is useful if you cannot or don't want to change the
2022 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002023endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002024
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025config XIP_KERNEL
2026 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002027 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028 help
2029 Execute-In-Place allows the kernel to run from non-volatile storage
2030 directly addressable by the CPU, such as NOR flash. This saves RAM
2031 space since the text section of the kernel is not loaded from flash
2032 to RAM. Read-write sections, such as the data section and stack,
2033 are still copied to RAM. The XIP kernel is not compressed since
2034 it has to run directly from flash, so it will take more space to
2035 store it. The flash address used to link the kernel object files,
2036 and for storing it, is configuration dependent. Therefore, if you
2037 say Y here, you must know the proper physical address where to
2038 store the kernel image depending on your own flash memory usage.
2039
2040 Also note that the make target becomes "make xipImage" rather than
2041 "make zImage" or "make Image". The final kernel binary to put in
2042 ROM memory will be arch/arm/boot/xipImage.
2043
2044 If unsure, say N.
2045
2046config XIP_PHYS_ADDR
2047 hex "XIP Kernel Physical Location"
2048 depends on XIP_KERNEL
2049 default "0x00080000"
2050 help
2051 This is the physical address in your flash memory the kernel will
2052 be linked for and stored to. This address is dependent on your
2053 own flash usage.
2054
Richard Purdiec587e4a2007-02-06 21:29:00 +01002055config KEXEC
2056 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002057 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002058 help
2059 kexec is a system call that implements the ability to shutdown your
2060 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002061 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002062 you can start any kernel with it, not just Linux.
2063
2064 It is an ongoing process to be certain the hardware in a machine
2065 is properly shutdown, so do not be surprised if this code does not
2066 initially work for you. It may help to enable device hotplugging
2067 support.
2068
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002069config ATAGS_PROC
2070 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002071 depends on KEXEC
2072 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002073 help
2074 Should the atags used to boot the kernel be exported in an "atags"
2075 file in procfs. Useful with kexec.
2076
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002077config CRASH_DUMP
2078 bool "Build kdump crash kernel (EXPERIMENTAL)"
2079 depends on EXPERIMENTAL
2080 help
2081 Generate crash dump after being started by kexec. This should
2082 be normally only set in special crash dump kernels which are
2083 loaded in the main kernel with kexec-tools into a specially
2084 reserved region and then later executed after a crash by
2085 kdump/kexec. The crash dump kernel must be compiled to a
2086 memory address not used by the main kernel
2087
2088 For more details see Documentation/kdump/kdump.txt
2089
Eric Miaoe69edc792010-07-05 15:56:50 +02002090config AUTO_ZRELADDR
2091 bool "Auto calculation of the decompressed kernel image address"
2092 depends on !ZBOOT_ROM && !ARCH_U300
2093 help
2094 ZRELADDR is the physical address where the decompressed kernel
2095 image will be placed. If AUTO_ZRELADDR is selected, the address
2096 will be determined at run-time by masking the current IP with
2097 0xf8000000. This assumes the zImage being placed in the first 128MB
2098 from start of memory.
2099
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100endmenu
2101
Russell Kingac9d7ef2008-08-18 17:26:00 +01002102menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103
Ben Dooks89c52ed2009-07-30 23:23:24 +01002104if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105
2106source "drivers/cpufreq/Kconfig"
2107
Yong Shen64f102b2010-10-21 21:18:59 +08002108config CPU_FREQ_IMX
2109 tristate "CPUfreq driver for i.MX CPUs"
2110 depends on ARCH_MXC && CPU_FREQ
2111 help
2112 This enables the CPUfreq driver for i.MX CPUs.
2113
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114config CPU_FREQ_SA1100
2115 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116
2117config CPU_FREQ_SA1110
2118 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119
2120config CPU_FREQ_INTEGRATOR
2121 tristate "CPUfreq driver for ARM Integrator CPUs"
2122 depends on ARCH_INTEGRATOR && CPU_FREQ
2123 default y
2124 help
2125 This enables the CPUfreq driver for ARM Integrator CPUs.
2126
2127 For details, take a look at <file:Documentation/cpu-freq>.
2128
2129 If in doubt, say Y.
2130
Russell King9e2697f2007-12-14 13:30:14 +00002131config CPU_FREQ_PXA
2132 bool
2133 depends on CPU_FREQ && ARCH_PXA && PXA25x
2134 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002135 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002136 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2137
Ben Dooks9d56c022009-07-30 23:23:25 +01002138config CPU_FREQ_S3C
2139 bool
2140 help
2141 Internal configuration node for common cpufreq on Samsung SoC
2142
2143config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002144 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002145 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002146 select CPU_FREQ_S3C
2147 help
2148 This enables the CPUfreq driver for the Samsung S3C24XX family
2149 of CPUs.
2150
2151 For details, take a look at <file:Documentation/cpu-freq>.
2152
2153 If in doubt, say N.
2154
2155config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002156 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002157 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2158 help
2159 Compile in support for changing the PLL frequency from the
2160 S3C24XX series CPUfreq driver. The PLL takes time to settle
2161 after a frequency change, so by default it is not enabled.
2162
2163 This also means that the PLL tables for the selected CPU(s) will
2164 be built which may increase the size of the kernel image.
2165
2166config CPU_FREQ_S3C24XX_DEBUG
2167 bool "Debug CPUfreq Samsung driver core"
2168 depends on CPU_FREQ_S3C24XX
2169 help
2170 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2171
2172config CPU_FREQ_S3C24XX_IODEBUG
2173 bool "Debug CPUfreq Samsung driver IO timing"
2174 depends on CPU_FREQ_S3C24XX
2175 help
2176 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2177
Ben Dookse6d197a2009-07-30 23:23:42 +01002178config CPU_FREQ_S3C24XX_DEBUGFS
2179 bool "Export debugfs for CPUFreq"
2180 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2181 help
2182 Export status information via debugfs.
2183
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184endif
2185
Russell Kingac9d7ef2008-08-18 17:26:00 +01002186source "drivers/cpuidle/Kconfig"
2187
2188endmenu
2189
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190menu "Floating point emulation"
2191
2192comment "At least one emulation must be selected"
2193
2194config FPE_NWFPE
2195 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002196 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 ---help---
2198 Say Y to include the NWFPE floating point emulator in the kernel.
2199 This is necessary to run most binaries. Linux does not currently
2200 support floating point hardware so you need to say Y here even if
2201 your machine has an FPA or floating point co-processor podule.
2202
2203 You may say N here if you are going to load the Acorn FPEmulator
2204 early in the bootup.
2205
2206config FPE_NWFPE_XP
2207 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002208 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209 help
2210 Say Y to include 80-bit support in the kernel floating-point
2211 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2212 Note that gcc does not generate 80-bit operations by default,
2213 so in most cases this option only enlarges the size of the
2214 floating point emulator without any good reason.
2215
2216 You almost surely want to say N here.
2217
2218config FPE_FASTFPE
2219 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002220 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002221 ---help---
2222 Say Y here to include the FAST floating point emulator in the kernel.
2223 This is an experimental much faster emulator which now also has full
2224 precision for the mantissa. It does not support any exceptions.
2225 It is very simple, and approximately 3-6 times faster than NWFPE.
2226
2227 It should be sufficient for most programs. It may be not suitable
2228 for scientific calculations, but you have to check this for yourself.
2229 If you do not feel you need a faster FP emulation you should better
2230 choose NWFPE.
2231
2232config VFP
2233 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002234 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235 help
2236 Say Y to include VFP support code in the kernel. This is needed
2237 if your hardware includes a VFP unit.
2238
2239 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2240 release notes and additional status information.
2241
2242 Say N if your target does not have VFP hardware.
2243
Catalin Marinas25ebee02007-09-25 15:22:24 +01002244config VFPv3
2245 bool
2246 depends on VFP
2247 default y if CPU_V7
2248
Catalin Marinasb5872db2008-01-10 19:16:17 +01002249config NEON
2250 bool "Advanced SIMD (NEON) Extension support"
2251 depends on VFPv3 && CPU_V7
2252 help
2253 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2254 Extension.
2255
Linus Torvalds1da177e2005-04-16 15:20:36 -07002256endmenu
2257
2258menu "Userspace binary formats"
2259
2260source "fs/Kconfig.binfmt"
2261
2262config ARTHUR
2263 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002264 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265 help
2266 Say Y here to include the kernel code necessary if you want to run
2267 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2268 experimental; if this sounds frightening, say N and sleep in peace.
2269 You can also say M here to compile this support as a module (which
2270 will be called arthur).
2271
2272endmenu
2273
2274menu "Power management options"
2275
Russell Kingeceab4a2005-11-15 11:31:41 +00002276source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277
Johannes Bergf4cb5702007-12-08 02:14:00 +01002278config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002279 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002280 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2281 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002282 def_bool y
2283
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002284config ARM_CPU_SUSPEND
2285 def_bool PM_SLEEP
2286
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287endmenu
2288
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002289source "net/Kconfig"
2290
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002291source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292
2293source "fs/Kconfig"
2294
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295source "arch/arm/Kconfig.debug"
2296
2297source "security/Kconfig"
2298
2299source "crypto/Kconfig"
2300
2301source "lib/Kconfig"