blob: 6e51ddde908aac16aca57e06d38197c8e10d6044 [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
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200410 select USE_OF
411 select ZONE_DMA
412 help
413 Support for CSR SiRFSoC ARM Cortex A9 Platform
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415config ARCH_EBSA110
416 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100418 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000419 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000420 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600421 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400422 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 help
424 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000425 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 Ethernet interface, two PCMCIA sockets, two serial ports and a
427 parallel port.
428
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000429config ARCH_EP93XX
430 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000432 select ARM_AMBA
433 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100434 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700435 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100436 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000437 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100438 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000439 help
440 This enables support for the Cirrus EP93xx series of CPUs.
441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442config ARCH_FOOTBRIDGE
443 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000446 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200447 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600448 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400449 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000450 help
451 Support for systems based on the DC21285 companion chip
452 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453
Russell King788c9702009-04-26 14:21:59 +0100454config ARCH_MXC
455 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100456 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100457 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100458 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100459 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800460 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200461 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100462 help
463 Support for Freescale MXC/iMX-based family of processors
464
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800465config ARCH_MXS
466 bool "Freescale MXS-based"
467 select GENERIC_CLOCKEVENTS
468 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100469 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100470 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800471 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800472 help
473 Support for Freescale MXS-based family of processors
474
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100475config ARCH_NETX
476 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100477 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000478 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100479 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100480 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000481 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100482 This enables support for systems based on the Hilscher NetX Soc
483
484config ARCH_H720X
485 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000486 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100487 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000488 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100489 help
490 This enables support for systems based on the Hynix HMS720x
491
Russell King3b938be2007-05-12 11:25:44 +0100492config ARCH_IOP13XX
493 bool "IOP13xx-based"
494 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000495 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100496 select PLAT_IOP
497 select PCI
498 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100499 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600500 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400501 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600502 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100503 help
504 Support for Intel's IOP13XX (XScale) family of processors.
505
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100506config ARCH_IOP32X
507 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100508 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000509 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600510 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600511 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100512 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100513 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100514 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000515 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100516 Support for Intel's 80219 and IOP32X (XScale) family of
517 processors.
518
519config ARCH_IOP33X
520 bool "IOP33x-based"
521 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000522 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600523 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600524 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100525 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100526 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100527 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100528 help
529 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
Russell King3b938be2007-05-12 11:25:44 +0100531config ARCH_IXP23XX
532 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100533 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000534 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100535 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000536 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600537 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400538 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100539 help
Russell King3b938be2007-05-12 11:25:44 +0100540 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541
542config ARCH_IXP2000
543 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100544 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000545 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100546 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000547 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600548 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400549 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000550 help
551 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552
Russell King3b938be2007-05-12 11:25:44 +0100553config ARCH_IXP4XX
554 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100555 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500556 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100557 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000558 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100559 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100560 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100561 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600562 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100563 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100564 help
Russell King3b938be2007-05-12 11:25:44 +0100565 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100566
Saeed Bisharaedabd382009-08-06 15:12:43 +0300567config ARCH_DOVE
568 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300569 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300570 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300571 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300572 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600573 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300574 select PLAT_ORION
575 help
576 Support for the Marvell Dove SoC 88AP510
577
Saeed Bishara651c74c2008-06-22 22:45:06 +0200578config ARCH_KIRKWOOD
579 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000580 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200581 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700582 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200583 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600584 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200585 select PLAT_ORION
586 help
587 Support for the following Marvell Kirkwood series SoCs:
588 88F6180, 88F6192 and 88F6281.
589
Kevin Wells40805942010-07-27 08:49:04 -0700590config ARCH_LPC32XX
591 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100592 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700593 select CPU_ARM926T
594 select ARCH_REQUIRE_GPIOLIB
595 select HAVE_IDE
596 select ARM_AMBA
597 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100598 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700599 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200600 select USE_OF
Kevin Wells40805942010-07-27 08:49:04 -0700601 help
602 Support for the NXP LPC32XX family of processors
603
Russell King788c9702009-04-26 14:21:59 +0100604config ARCH_MV78XX0
605 bool "Marvell MV78xx0"
606 select CPU_FEROCEON
607 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700608 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100609 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600610 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100611 select PLAT_ORION
612 help
613 Support for the following Marvell MV78xx0 series SoCs:
614 MV781x0, MV782x0.
615
616config ARCH_ORION5X
617 bool "Marvell Orion"
618 depends on MMU
619 select CPU_FEROCEON
620 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700621 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100622 select GENERIC_CLOCKEVENTS
623 select PLAT_ORION
624 help
625 Support for the following Marvell Orion 5x series SoCs:
626 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
627 Orion-2 (5281), Orion-1-90 (6183).
628
629config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500630 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100631 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100632 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100633 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100634 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800635 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100636 select TICK_ONESHOT
637 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400638 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800639 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100640 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500641 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100642
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100643config ARCH_KS8695
644 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000645 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100646 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000647 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400648 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100649 help
650 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
651 System-on-Chip devices.
652
Russell King788c9702009-04-26 14:21:59 +0100653config ARCH_W90X900
654 bool "Nuvoton W90X900 CPU"
655 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100656 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100657 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100658 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100659 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200660 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100661 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
662 At present, the w90x900 has been renamed nuc900, regarding
663 the ARM series product line, you can login the following
664 link address to know more.
665
666 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
667 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400668
Erik Gillingc5f80062010-01-21 16:53:02 -0800669config ARCH_TEGRA
670 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000671 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100672 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800673 select GENERIC_CLOCKEVENTS
674 select GENERIC_GPIO
675 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000676 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000677 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600678 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700679 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800680 help
681 This enables support for NVIDIA Tegra based systems (Tegra APX,
682 Tegra 6xx and Tegra 2 series).
683
Jamie Ilesaf756552011-07-25 17:36:42 +0100684config ARCH_PICOXCELL
685 bool "Picochip picoXcell"
686 select ARCH_REQUIRE_GPIOLIB
687 select ARM_PATCH_PHYS_VIRT
688 select ARM_VIC
689 select CPU_V6K
690 select DW_APB_TIMER
691 select GENERIC_CLOCKEVENTS
692 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100693 select HAVE_TCM
694 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000695 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100696 select USE_OF
697 help
698 This enables support for systems based on the Picochip picoXcell
699 family of Femtocell devices. The picoxcell support requires device tree
700 for all boards.
701
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100702config ARCH_PNX4008
703 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000704 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100705 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000706 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100707 help
708 This enables support for Philips PNX4008 mobile platform.
709
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700711 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100712 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500713 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100714 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100715 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100716 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700717 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100718 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800719 select GPIO_PXA
Russell Kinga88264c2007-11-12 22:45:16 +0000720 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800721 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800722 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800723 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800724 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200725 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200726 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000727 help
eric miao2c8086a2007-09-11 19:13:17 -0700728 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729
Russell King788c9702009-04-26 14:21:59 +0100730config ARCH_MSM
731 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500732 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800733 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700734 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800735 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800736 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800737 Support for Qualcomm MSM/QSD based systems. This runs on the
738 apps processor of the MSM/QSD and depends on a shared memory
739 interface to the modem processor which runs the baseband
740 stack and controls some vital subsystems
741 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800742
Magnus Dammc793c1b2010-02-05 11:14:49 +0000743config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900744 bool "Renesas SH-Mobile / R-Mobile"
745 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900746 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900747 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000748 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900749 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000750 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900751 select NO_IOPORT
752 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000753 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200754 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400755 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000756 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900757 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000758
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759config ARCH_RPC
760 bool "RiscPC"
761 select ARCH_ACORN
762 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100763 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100764 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000765 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000766 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100767 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000768 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200769 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600770 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400771 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772 help
773 On the Acorn Risc-PC, Linux can support the internal IDE disk and
774 CD-ROM interface, serial and parallel port, and the floppy drive.
775
776config ARCH_SA1100
777 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100778 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000779 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100780 select ISA
Russell King05944d72006-11-30 20:43:51 +0000781 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500782 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100783 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000784 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100785 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800786 select CLKDEV_LOOKUP
Russell King3e238be2008-04-14 23:03:10 +0100787 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700788 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200789 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400790 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100791 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000792 help
793 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900795config ARCH_S3C24XX
796 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800797 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100798 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700799 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900800 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000801 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900802 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900803 select HAVE_S3C_RTC if RTC_CLASS
804 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600805 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900807 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
808 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
809 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
810 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900811
Ben Dooksa08ab632008-10-21 14:06:39 +0100812config ARCH_S3C64XX
813 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000814 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900815 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900816 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100817 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900818 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900819 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900820 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000821 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100822 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900823 select ARCH_REQUIRE_GPIOLIB
824 select SAMSUNG_CLKSRC
825 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900826 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900827 select S3C_DEV_NAND
828 select USB_ARCH_HAS_OHCI
829 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900830 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900831 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100832 help
833 Samsung S3C64XX series based systems
834
Kukjin Kim49b7a492010-09-07 15:47:18 +0900835config ARCH_S5P64X0
836 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900837 select CPU_V6
838 select GENERIC_GPIO
839 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900840 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900841 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900842 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900843 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900844 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900845 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900846 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900847 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
848 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900849
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200850config ARCH_S5PC100
851 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900852 select GENERIC_GPIO
853 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900854 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900855 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900856 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900857 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900858 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900859 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900860 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200861 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900862
Kukjin Kim170f4e42010-02-24 16:40:44 +0900863config ARCH_S5PV210
864 bool "Samsung S5PV210/S5PC110"
865 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900866 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900867 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900868 select GENERIC_GPIO
869 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900870 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900871 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900872 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900873 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900874 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900875 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900876 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400877 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900878 help
879 Samsung S5PV210/S5PC110 series based systems
880
Kukjin Kim83014572011-11-06 13:54:56 +0900881config ARCH_EXYNOS
882 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900883 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900884 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900885 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900886 select GENERIC_GPIO
887 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900888 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900889 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900890 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900891 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900892 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900893 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400894 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900895 help
Kukjin Kim83014572011-11-06 13:54:56 +0900896 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900897
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898config ARCH_SHARK
899 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000900 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100901 select ISA
902 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100903 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100904 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000905 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400906 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600907 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000908 help
909 Support for the StrongARM based Digital DNARD machine, also known
910 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Linus Walleijd98aac72009-04-27 10:21:46 +0100912config ARCH_U300
913 bool "ST-Ericsson U300 Series"
914 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100915 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100916 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100917 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100918 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200919 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100920 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100921 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100922 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900923 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100924 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100925 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100926 help
927 Support for ST-Ericsson U300 series mobile platforms.
928
Russell Kingccf50e22010-03-15 19:03:06 +0000929config ARCH_U8500
930 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700931 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000932 select CPU_V7
933 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000934 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100935 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100936 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100937 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000938 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000939 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000940 help
941 Support for ST-Ericsson's Ux500 architecture
942
943config ARCH_NOMADIK
944 bool "STMicroelectronics Nomadik"
945 select ARM_AMBA
946 select ARM_VIC
947 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100948 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000949 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000950 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000951 select ARCH_REQUIRE_GPIOLIB
952 help
953 Support for the Nomadik platform by ST-Ericsson
954
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100955config ARCH_DAVINCI
956 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100957 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700958 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100959 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700960 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100961 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700962 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100963 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530964 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100965 help
966 Support for TI's DaVinci platform.
967
Russell King3b938be2007-05-12 11:25:44 +0100968config ARCH_OMAP
969 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700970 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700971 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100972 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700973 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700974 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800975 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100976 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200977 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100978
viresh kumarcee37e52010-04-01 12:31:05 +0100979config PLAT_SPEAR
980 bool "ST SPEAr"
981 select ARM_AMBA
982 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100983 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100984 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100985 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100986 select HAVE_CLK
987 help
988 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
989
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100990config ARCH_VT8500
991 bool "VIA/WonderMedia 85xx"
992 select CPU_ARM926T
993 select GENERIC_GPIO
994 select ARCH_HAS_CPUFREQ
995 select GENERIC_CLOCKEVENTS
996 select ARCH_REQUIRE_GPIOLIB
997 select HAVE_PWM
998 help
999 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +08001000
John Linnb85a3ef2011-06-20 11:47:27 -06001001config ARCH_ZYNQ
1002 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001003 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001004 select GENERIC_CLOCKEVENTS
1005 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001006 select ARM_GIC
1007 select ARM_AMBA
1008 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001009 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001010 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001011 help
John Linnb85a3ef2011-06-20 11:47:27 -06001012 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013endchoice
1014
Russell Kingccf50e22010-03-15 19:03:06 +00001015#
1016# This is sorted alphabetically by mach-* pathname. However, plat-*
1017# Kconfigs may be included either alphabetically (according to the
1018# plat- suffix) or along side the corresponding mach-* source.
1019#
Russell King95b8f202010-01-14 11:43:54 +00001020source "arch/arm/mach-at91/Kconfig"
1021
1022source "arch/arm/mach-bcmring/Kconfig"
1023
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024source "arch/arm/mach-clps711x/Kconfig"
1025
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001026source "arch/arm/mach-cns3xxx/Kconfig"
1027
Russell King95b8f202010-01-14 11:43:54 +00001028source "arch/arm/mach-davinci/Kconfig"
1029
1030source "arch/arm/mach-dove/Kconfig"
1031
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001032source "arch/arm/mach-ep93xx/Kconfig"
1033
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034source "arch/arm/mach-footbridge/Kconfig"
1035
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001036source "arch/arm/mach-gemini/Kconfig"
1037
Russell King95b8f202010-01-14 11:43:54 +00001038source "arch/arm/mach-h720x/Kconfig"
1039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040source "arch/arm/mach-integrator/Kconfig"
1041
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001042source "arch/arm/mach-iop32x/Kconfig"
1043
1044source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Dan Williams285f5fa2006-12-07 02:59:39 +01001046source "arch/arm/mach-iop13xx/Kconfig"
1047
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048source "arch/arm/mach-ixp4xx/Kconfig"
1049
1050source "arch/arm/mach-ixp2000/Kconfig"
1051
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001052source "arch/arm/mach-ixp23xx/Kconfig"
1053
Russell King95b8f202010-01-14 11:43:54 +00001054source "arch/arm/mach-kirkwood/Kconfig"
1055
1056source "arch/arm/mach-ks8695/Kconfig"
1057
Kevin Wells40805942010-07-27 08:49:04 -07001058source "arch/arm/mach-lpc32xx/Kconfig"
1059
Russell King95b8f202010-01-14 11:43:54 +00001060source "arch/arm/mach-msm/Kconfig"
1061
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001062source "arch/arm/mach-mv78xx0/Kconfig"
1063
Russell King95b8f202010-01-14 11:43:54 +00001064source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001066source "arch/arm/mach-mxs/Kconfig"
1067
Russell King95b8f202010-01-14 11:43:54 +00001068source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001069
Russell King95b8f202010-01-14 11:43:54 +00001070source "arch/arm/mach-nomadik/Kconfig"
1071source "arch/arm/plat-nomadik/Kconfig"
1072
Tony Lindgrend48af152005-07-10 19:58:17 +01001073source "arch/arm/plat-omap/Kconfig"
1074
1075source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Tony Lindgren1dbae812005-11-10 14:26:51 +00001077source "arch/arm/mach-omap2/Kconfig"
1078
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001079source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001080
Russell King95b8f202010-01-14 11:43:54 +00001081source "arch/arm/mach-pxa/Kconfig"
1082source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-mmp/Kconfig"
1085
1086source "arch/arm/mach-realview/Kconfig"
1087
1088source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001089
Ben Dookscf383672009-11-10 00:14:58 +00001090source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001091source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001092source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001093
viresh kumarcee37e52010-04-01 12:31:05 +01001094source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001095
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001096source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001097if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001098source "arch/arm/mach-s3c2412/Kconfig"
1099source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001100endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101
Ben Dooksa08ab632008-10-21 14:06:39 +01001102if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001103source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001104endif
1105
Kukjin Kim49b7a492010-09-07 15:47:18 +09001106source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001107
Byungho Min5a7652f2009-06-23 21:39:42 +09001108source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001109
Kukjin Kim170f4e42010-02-24 16:40:44 +09001110source "arch/arm/mach-s5pv210/Kconfig"
1111
Kukjin Kim83014572011-11-06 13:54:56 +09001112source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001113
Russell King882d01f2010-03-02 23:40:15 +00001114source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115
Erik Gillingc5f80062010-01-21 16:53:02 -08001116source "arch/arm/mach-tegra/Kconfig"
1117
Russell King95b8f202010-01-14 11:43:54 +00001118source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119
Russell King95b8f202010-01-14 11:43:54 +00001120source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001121
1122source "arch/arm/mach-versatile/Kconfig"
1123
Russell Kingceade892010-02-11 21:44:53 +00001124source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001125source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001126
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001127source "arch/arm/mach-vt8500/Kconfig"
1128
wanzongshun7ec80dd2008-12-03 03:55:38 +01001129source "arch/arm/mach-w90x900/Kconfig"
1130
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131# Definitions to make life easier
1132config ARCH_ACORN
1133 bool
1134
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001135config PLAT_IOP
1136 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001137 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001138
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001139config PLAT_ORION
1140 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001141 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001142 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001143
Eric Miaobd5ce432009-01-20 12:06:01 +08001144config PLAT_PXA
1145 bool
1146
Russell Kingf4b8b312010-01-14 12:48:06 +00001147config PLAT_VERSATILE
1148 bool
1149
Russell Kinge3887712010-01-14 13:30:16 +00001150config ARM_TIMER_SP804
1151 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001152 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001153 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001154
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155source arch/arm/mm/Kconfig
1156
Russell King958cab02011-12-11 10:04:00 +00001157config ARM_NR_BANKS
1158 int
1159 default 16 if ARCH_EP93XX
1160 default 8
1161
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001162config IWMMXT
1163 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001164 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1165 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001166 help
1167 Enable support for iWMMXt context switching at run time if
1168 running on a CPU that supports it.
1169
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170config XSCALE_PMU
1171 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001172 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173 default y
1174
Jamie Iles0f4f0672010-02-02 20:23:15 +01001175config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001176 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001177 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001178 default y
1179 bool
1180
eric miao52108642010-12-13 09:42:34 +01001181config MULTI_IRQ_HANDLER
1182 bool
1183 help
1184 Allow each machine to specify it's own IRQ handler at run time.
1185
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001186if !MMU
1187source "arch/arm/Kconfig-nommu"
1188endif
1189
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001190config ARM_ERRATA_411920
1191 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001192 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001193 help
1194 Invalidation of the Instruction Cache operation can
1195 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1196 It does not affect the MPCore. This option enables the ARM Ltd.
1197 recommended workaround.
1198
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001199config ARM_ERRATA_430973
1200 bool "ARM errata: Stale prediction on replaced interworking branch"
1201 depends on CPU_V7
1202 help
1203 This option enables the workaround for the 430973 Cortex-A8
1204 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1205 interworking branch is replaced with another code sequence at the
1206 same virtual address, whether due to self-modifying code or virtual
1207 to physical address re-mapping, Cortex-A8 does not recover from the
1208 stale interworking branch prediction. This results in Cortex-A8
1209 executing the new code sequence in the incorrect ARM or Thumb state.
1210 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1211 and also flushes the branch target cache at every context switch.
1212 Note that setting specific bits in the ACTLR register may not be
1213 available in non-secure mode.
1214
Catalin Marinas855c5512009-04-30 17:06:15 +01001215config ARM_ERRATA_458693
1216 bool "ARM errata: Processor deadlock when a false hazard is created"
1217 depends on CPU_V7
1218 help
1219 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1220 erratum. For very specific sequences of memory operations, it is
1221 possible for a hazard condition intended for a cache line to instead
1222 be incorrectly associated with a different cache line. This false
1223 hazard might then cause a processor deadlock. The workaround enables
1224 the L1 caching of the NEON accesses and disables the PLD instruction
1225 in the ACTLR register. Note that setting specific bits in the ACTLR
1226 register may not be available in non-secure mode.
1227
Catalin Marinas0516e462009-04-30 17:06:20 +01001228config ARM_ERRATA_460075
1229 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1230 depends on CPU_V7
1231 help
1232 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1233 erratum. Any asynchronous access to the L2 cache may encounter a
1234 situation in which recent store transactions to the L2 cache are lost
1235 and overwritten with stale memory contents from external memory. The
1236 workaround disables the write-allocate mode for the L2 cache via the
1237 ACTLR register. Note that setting specific bits in the ACTLR register
1238 may not be available in non-secure mode.
1239
Will Deacon9f050272010-09-14 09:51:43 +01001240config ARM_ERRATA_742230
1241 bool "ARM errata: DMB operation may be faulty"
1242 depends on CPU_V7 && SMP
1243 help
1244 This option enables the workaround for the 742230 Cortex-A9
1245 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1246 between two write operations may not ensure the correct visibility
1247 ordering of the two writes. This workaround sets a specific bit in
1248 the diagnostic register of the Cortex-A9 which causes the DMB
1249 instruction to behave as a DSB, ensuring the correct behaviour of
1250 the two writes.
1251
Will Deacona672e992010-09-14 09:53:02 +01001252config ARM_ERRATA_742231
1253 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1254 depends on CPU_V7 && SMP
1255 help
1256 This option enables the workaround for the 742231 Cortex-A9
1257 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1258 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1259 accessing some data located in the same cache line, may get corrupted
1260 data due to bad handling of the address hazard when the line gets
1261 replaced from one of the CPUs at the same time as another CPU is
1262 accessing it. This workaround sets specific bits in the diagnostic
1263 register of the Cortex-A9 which reduces the linefill issuing
1264 capabilities of the processor.
1265
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001266config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001267 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001268 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001269 help
1270 The PL310 L2 cache controller implements three types of Clean &
1271 Invalidate maintenance operations: by Physical Address
1272 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1273 They are architecturally defined to behave as the execution of a
1274 clean operation followed immediately by an invalidate operation,
1275 both performing to the same memory location. This functionality
1276 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001277 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001278
1279config ARM_ERRATA_720789
1280 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001281 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001282 help
1283 This option enables the workaround for the 720789 Cortex-A9 (prior to
1284 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1285 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1286 As a consequence of this erratum, some TLB entries which should be
1287 invalidated are not, resulting in an incoherency in the system page
1288 tables. The workaround changes the TLB flushing routines to invalidate
1289 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001290
Russell King1f0090a2011-03-16 23:35:25 +00001291config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001292 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001293 depends on CACHE_L2X0
1294 help
1295 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1296 operation (offset 0x7FC). This operation runs in background so that
1297 PL310 can handle normal accesses while it is in progress. Under very
1298 rare circumstances, due to this erratum, write data can be lost when
1299 PL310 treats a cacheable write transaction during a Clean &
1300 Invalidate by Way operation.
1301
Will Deacon475d92f2010-09-28 14:02:02 +01001302config ARM_ERRATA_743622
1303 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1304 depends on CPU_V7
1305 help
1306 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001307 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001308 optimisation in the Cortex-A9 Store Buffer may lead to data
1309 corruption. This workaround sets a specific bit in the diagnostic
1310 register of the Cortex-A9 which disables the Store Buffer
1311 optimisation, preventing the defect from occurring. This has no
1312 visible impact on the overall performance or power consumption of the
1313 processor.
1314
Will Deacon9a27c272011-02-18 16:36:35 +01001315config ARM_ERRATA_751472
1316 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001317 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001318 help
1319 This option enables the workaround for the 751472 Cortex-A9 (prior
1320 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1321 completion of a following broadcasted operation if the second
1322 operation is received by a CPU before the ICIALLUIS has completed,
1323 potentially leading to corrupted entries in the cache or TLB.
1324
Will Deaconfa0ce402011-11-14 17:24:57 +01001325config PL310_ERRATA_753970
1326 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001327 depends on CACHE_PL310
1328 help
1329 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1330
1331 Under some condition the effect of cache sync operation on
1332 the store buffer still remains when the operation completes.
1333 This means that the store buffer is always asked to drain and
1334 this prevents it from merging any further writes. The workaround
1335 is to replace the normal offset of cache sync operation (0x730)
1336 by another offset targeting an unmapped PL310 register 0x740.
1337 This has the same effect as the cache sync operation: store buffer
1338 drain and waiting for all buffers empty.
1339
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001340config ARM_ERRATA_754322
1341 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1342 depends on CPU_V7
1343 help
1344 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1345 r3p*) erratum. A speculative memory access may cause a page table walk
1346 which starts prior to an ASID switch but completes afterwards. This
1347 can populate the micro-TLB with a stale entry which may be hit with
1348 the new ASID. This workaround places two dsb instructions in the mm
1349 switching code so that no page table walks can cross the ASID switch.
1350
Will Deacon5dab26af2011-03-04 12:38:54 +01001351config ARM_ERRATA_754327
1352 bool "ARM errata: no automatic Store Buffer drain"
1353 depends on CPU_V7 && SMP
1354 help
1355 This option enables the workaround for the 754327 Cortex-A9 (prior to
1356 r2p0) erratum. The Store Buffer does not have any automatic draining
1357 mechanism and therefore a livelock may occur if an external agent
1358 continuously polls a memory location waiting to observe an update.
1359 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1360 written polling loops from denying visibility of updates to memory.
1361
Catalin Marinas145e10e2011-08-15 11:04:41 +01001362config ARM_ERRATA_364296
1363 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1364 depends on CPU_V6 && !SMP
1365 help
1366 This options enables the workaround for the 364296 ARM1136
1367 r0p2 erratum (possible cache data corruption with
1368 hit-under-miss enabled). It sets the undocumented bit 31 in
1369 the auxiliary control register and the FI bit in the control
1370 register, thus disabling hit-under-miss without putting the
1371 processor into full low interrupt latency mode. ARM11MPCore
1372 is not affected.
1373
Will Deaconf630c1b2011-09-15 11:45:15 +01001374config ARM_ERRATA_764369
1375 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1376 depends on CPU_V7 && SMP
1377 help
1378 This option enables the workaround for erratum 764369
1379 affecting Cortex-A9 MPCore with two or more processors (all
1380 current revisions). Under certain timing circumstances, a data
1381 cache line maintenance operation by MVA targeting an Inner
1382 Shareable memory region may fail to proceed up to either the
1383 Point of Coherency or to the Point of Unification of the
1384 system. This workaround adds a DSB instruction before the
1385 relevant cache maintenance functions and sets a specific bit
1386 in the diagnostic control register of the SCU.
1387
Will Deacon11ed0ba2011-11-14 17:24:58 +01001388config PL310_ERRATA_769419
1389 bool "PL310 errata: no automatic Store Buffer drain"
1390 depends on CACHE_L2X0
1391 help
1392 On revisions of the PL310 prior to r3p2, the Store Buffer does
1393 not automatically drain. This can cause normal, non-cacheable
1394 writes to be retained when the memory system is idle, leading
1395 to suboptimal I/O performance for drivers using coherent DMA.
1396 This option adds a write barrier to the cpu_idle loop so that,
1397 on systems with an outer cache, the store buffer is drained
1398 explicitly.
1399
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400endmenu
1401
1402source "arch/arm/common/Kconfig"
1403
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404menu "Bus support"
1405
1406config ARM_AMBA
1407 bool
1408
1409config ISA
1410 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 help
1412 Find out whether you have ISA slots on your motherboard. ISA is the
1413 name of a bus system, i.e. the way the CPU talks to the other stuff
1414 inside your box. Other bus systems are PCI, EISA, MicroChannel
1415 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1416 newer boards don't support it. If you have ISA, say Y, otherwise N.
1417
Russell King065909b2006-01-04 15:44:16 +00001418# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419config ISA_DMA
1420 bool
Russell King065909b2006-01-04 15:44:16 +00001421 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422
Russell King065909b2006-01-04 15:44:16 +00001423# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001424config ISA_DMA_API
1425 bool
Al Viro5cae8412005-05-04 05:39:22 +01001426
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001428 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001429 help
1430 Find out whether you have a PCI motherboard. PCI is the name of a
1431 bus system, i.e. the way the CPU talks to the other stuff inside
1432 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1433 VESA. If you have PCI, say Y, otherwise N.
1434
Anton Vorontsov52882172010-04-19 13:20:49 +01001435config PCI_DOMAINS
1436 bool
1437 depends on PCI
1438
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001439config PCI_NANOENGINE
1440 bool "BSE nanoEngine PCI support"
1441 depends on SA1100_NANOENGINE
1442 help
1443 Enable PCI on the BSE nanoEngine board.
1444
Matthew Wilcox36e23592007-07-10 10:54:40 -06001445config PCI_SYSCALL
1446 def_bool PCI
1447
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448# Select the host bridge type
1449config PCI_HOST_VIA82C505
1450 bool
1451 depends on PCI && ARCH_SHARK
1452 default y
1453
Mike Rapoporta0113a92007-11-25 08:55:34 +01001454config PCI_HOST_ITE8152
1455 bool
1456 depends on PCI && MACH_ARMCORE
1457 default y
1458 select DMABOUNCE
1459
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460source "drivers/pci/Kconfig"
1461
1462source "drivers/pcmcia/Kconfig"
1463
1464endmenu
1465
1466menu "Kernel Features"
1467
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001468source "kernel/time/Kconfig"
1469
Dave Martin3b556582011-12-07 15:38:04 +00001470config HAVE_SMP
1471 bool
1472 help
1473 This option should be selected by machines which have an SMP-
1474 capable CPU.
1475
1476 The only effect of this option is to make the SMP-related
1477 options available to the user for configuration.
1478
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001480 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001481 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001482 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001483 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001484 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001485 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001486 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001487 help
1488 This enables support for systems with more than one CPU. If you have
1489 a system with only one CPU, like most personal computers, say N. If
1490 you have a system with more than one CPU, say Y.
1491
1492 If you say N here, the kernel will run on single and multiprocessor
1493 machines, but will use only one CPU of a multiprocessor machine. If
1494 you say Y here, the kernel will run on many, but not all, single
1495 processor machines. On a single processor machine, the kernel will
1496 run faster if you say N here.
1497
Paul Bolle395cf962011-08-15 02:02:26 +02001498 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001500 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501
1502 If you don't know what to do here, say N.
1503
Russell Kingf00ec482010-09-04 10:47:48 +01001504config SMP_ON_UP
1505 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1506 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001507 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001508 default y
1509 help
1510 SMP kernels contain instructions which fail on non-SMP processors.
1511 Enabling this option allows the kernel to modify itself to make
1512 these instructions safe. Disabling it allows about 1K of space
1513 savings.
1514
1515 If you don't know what to do here, say Y.
1516
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001517config ARM_CPU_TOPOLOGY
1518 bool "Support cpu topology definition"
1519 depends on SMP && CPU_V7
1520 default y
1521 help
1522 Support ARM cpu topology definition. The MPIDR register defines
1523 affinity between processors which is then used to describe the cpu
1524 topology of an ARM System.
1525
1526config SCHED_MC
1527 bool "Multi-core scheduler support"
1528 depends on ARM_CPU_TOPOLOGY
1529 help
1530 Multi-core scheduler support improves the CPU scheduler's decision
1531 making when dealing with multi-core CPU chips at a cost of slightly
1532 increased overhead in some places. If unsure say N here.
1533
1534config SCHED_SMT
1535 bool "SMT scheduler support"
1536 depends on ARM_CPU_TOPOLOGY
1537 help
1538 Improves the CPU scheduler's decision making when dealing with
1539 MultiThreading at a cost of slightly increased overhead in some
1540 places. If unsure say N here.
1541
Russell Kinga8cbcd92009-05-16 11:51:14 +01001542config HAVE_ARM_SCU
1543 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001544 help
1545 This option enables support for the ARM system coherency unit
1546
Russell Kingf32f4ce2009-05-16 12:14:21 +01001547config HAVE_ARM_TWD
1548 bool
1549 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001550 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001551 help
1552 This options enables support for the ARM timer and watchdog unit
1553
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001554choice
1555 prompt "Memory split"
1556 default VMSPLIT_3G
1557 help
1558 Select the desired split between kernel and user memory.
1559
1560 If you are not absolutely sure what you are doing, leave this
1561 option alone!
1562
1563 config VMSPLIT_3G
1564 bool "3G/1G user/kernel split"
1565 config VMSPLIT_2G
1566 bool "2G/2G user/kernel split"
1567 config VMSPLIT_1G
1568 bool "1G/3G user/kernel split"
1569endchoice
1570
1571config PAGE_OFFSET
1572 hex
1573 default 0x40000000 if VMSPLIT_1G
1574 default 0x80000000 if VMSPLIT_2G
1575 default 0xC0000000
1576
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577config NR_CPUS
1578 int "Maximum number of CPUs (2-32)"
1579 range 2 32
1580 depends on SMP
1581 default "4"
1582
Russell Kinga054a812005-11-02 22:24:33 +00001583config HOTPLUG_CPU
1584 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1585 depends on SMP && HOTPLUG && EXPERIMENTAL
1586 help
1587 Say Y here to experiment with turning CPUs off and on. CPUs
1588 can be controlled through /sys/devices/system/cpu.
1589
Russell King37ee16a2005-11-08 19:08:05 +00001590config LOCAL_TIMERS
1591 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001592 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001593 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001594 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001595 help
1596 Enable support for local timers on SMP platforms, rather then the
1597 legacy IPI broadcast method. Local timers allows the system
1598 accounting to be spread across the timer interval, preventing a
1599 "thundering herd" at every timer tick.
1600
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001601config ARCH_NR_GPIO
1602 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001603 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001604 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001605 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001606 default 0
1607 help
1608 Maximum number of GPIOs in the system.
1609
1610 If unsure, leave the default value.
1611
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001612source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613
Russell Kingf8065812006-03-02 22:41:59 +00001614config HZ
1615 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001616 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001617 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001618 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001619 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001620 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001621 default 100
1622
Catalin Marinas16c79652009-07-24 12:33:02 +01001623config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001624 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001625 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001626 select AEABI
1627 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001628 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001629 help
1630 By enabling this option, the kernel will be compiled in
1631 Thumb-2 mode. A compiler/assembler that understand the unified
1632 ARM-Thumb syntax is needed.
1633
1634 If unsure, say N.
1635
Dave Martin6f685c52011-03-03 11:41:12 +01001636config THUMB2_AVOID_R_ARM_THM_JUMP11
1637 bool "Work around buggy Thumb-2 short branch relocations in gas"
1638 depends on THUMB2_KERNEL && MODULES
1639 default y
1640 help
1641 Various binutils versions can resolve Thumb-2 branches to
1642 locally-defined, preemptible global symbols as short-range "b.n"
1643 branch instructions.
1644
1645 This is a problem, because there's no guarantee the final
1646 destination of the symbol, or any candidate locations for a
1647 trampoline, are within range of the branch. For this reason, the
1648 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1649 relocation in modules at all, and it makes little sense to add
1650 support.
1651
1652 The symptom is that the kernel fails with an "unsupported
1653 relocation" error when loading some modules.
1654
1655 Until fixed tools are available, passing
1656 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1657 code which hits this problem, at the cost of a bit of extra runtime
1658 stack usage in some cases.
1659
1660 The problem is described in more detail at:
1661 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1662
1663 Only Thumb-2 kernels are affected.
1664
1665 Unless you are sure your tools don't have this problem, say Y.
1666
Catalin Marinas0becb082009-07-24 12:32:53 +01001667config ARM_ASM_UNIFIED
1668 bool
1669
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001670config AEABI
1671 bool "Use the ARM EABI to compile the kernel"
1672 help
1673 This option allows for the kernel to be compiled using the latest
1674 ARM ABI (aka EABI). This is only useful if you are using a user
1675 space environment that is also compiled with EABI.
1676
1677 Since there are major incompatibilities between the legacy ABI and
1678 EABI, especially with regard to structure member alignment, this
1679 option also changes the kernel syscall calling convention to
1680 disambiguate both ABIs and allow for backward compatibility support
1681 (selected with CONFIG_OABI_COMPAT).
1682
1683 To use this you need GCC version 4.0.0 or later.
1684
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001685config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001686 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001687 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001688 default y
1689 help
1690 This option preserves the old syscall interface along with the
1691 new (ARM EABI) one. It also provides a compatibility layer to
1692 intercept syscalls that have structure arguments which layout
1693 in memory differs between the legacy ABI and the new ARM EABI
1694 (only for non "thumb" binaries). This option adds a tiny
1695 overhead to all syscalls and produces a slightly larger kernel.
1696 If you know you'll be using only pure EABI user space then you
1697 can say N here. If this option is not selected and you attempt
1698 to execute a legacy ABI binary then the result will be
1699 UNPREDICTABLE (in fact it can be predicted that it won't work
1700 at all). If in doubt say Y.
1701
Mel Gormaneb335752009-05-13 17:34:48 +01001702config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001703 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001704
Russell King05944d72006-11-30 20:43:51 +00001705config ARCH_SPARSEMEM_ENABLE
1706 bool
1707
Russell King07a2f732008-10-01 21:39:58 +01001708config ARCH_SPARSEMEM_DEFAULT
1709 def_bool ARCH_SPARSEMEM_ENABLE
1710
Russell King05944d72006-11-30 20:43:51 +00001711config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001712 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001713
Will Deacon7b7bf492011-05-19 13:21:14 +01001714config HAVE_ARCH_PFN_VALID
1715 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1716
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001717config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001718 bool "High Memory Support"
1719 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001720 help
1721 The address space of ARM processors is only 4 Gigabytes large
1722 and it has to accommodate user address space, kernel address
1723 space as well as some memory mapped IO. That means that, if you
1724 have a large amount of physical memory and/or IO, not all of the
1725 memory can be "permanently mapped" by the kernel. The physical
1726 memory that is not permanently mapped is called "high memory".
1727
1728 Depending on the selected kernel/user memory split, minimum
1729 vmalloc space and actual amount of RAM, you may not need this
1730 option which should result in a slightly faster kernel.
1731
1732 If unsure, say n.
1733
Russell King65cec8e2009-08-17 20:02:06 +01001734config HIGHPTE
1735 bool "Allocate 2nd-level pagetables from highmem"
1736 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001737
Jamie Iles1b8873a2010-02-02 20:25:44 +01001738config HW_PERF_EVENTS
1739 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001740 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001741 default y
1742 help
1743 Enable hardware performance counter support for perf events. If
1744 disabled, perf events will use software events only.
1745
Dave Hansen3f22ab22005-06-23 00:07:43 -07001746source "mm/Kconfig"
1747
Magnus Dammc1b2d972010-07-05 10:00:11 +01001748config FORCE_MAX_ZONEORDER
1749 int "Maximum zone order" if ARCH_SHMOBILE
1750 range 11 64 if ARCH_SHMOBILE
1751 default "9" if SA1111
1752 default "11"
1753 help
1754 The kernel memory allocator divides physically contiguous memory
1755 blocks into "zones", where each zone is a power of two number of
1756 pages. This option selects the largest power of two that the kernel
1757 keeps in the memory allocator. If you need to allocate very large
1758 blocks of physically contiguous memory, then you may need to
1759 increase this value.
1760
1761 This config option is actually maximum order plus one. For example,
1762 a value of 11 means that the largest free memory block is 2^10 pages.
1763
Linus Torvalds1da177e2005-04-16 15:20:36 -07001764config LEDS
1765 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001766 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001767 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1769 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001770 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001771 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001772 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773 help
1774 If you say Y here, the LEDs on your machine will be used
1775 to provide useful information about your current system status.
1776
1777 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1778 be able to select which LEDs are active using the options below. If
1779 you are compiling a kernel for the EBSA-110 or the LART however, the
1780 red LED will simply flash regularly to indicate that the system is
1781 still functional. It is safe to say Y here if you have a CATS
1782 system, but the driver will do nothing.
1783
1784config LEDS_TIMER
1785 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001786 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1787 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001789 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001790 default y if ARCH_EBSA110
1791 help
1792 If you say Y here, one of the system LEDs (the green one on the
1793 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1794 will flash regularly to indicate that the system is still
1795 operational. This is mainly useful to kernel hackers who are
1796 debugging unstable kernels.
1797
1798 The LART uses the same LED for both Timer LED and CPU usage LED
1799 functions. You may choose to use both, but the Timer LED function
1800 will overrule the CPU usage LED.
1801
1802config LEDS_CPU
1803 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001804 !ARCH_OMAP) \
1805 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1806 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807 depends on LEDS
1808 help
1809 If you say Y here, the red LED will be used to give a good real
1810 time indication of CPU usage, by lighting whenever the idle task
1811 is not currently executing.
1812
1813 The LART uses the same LED for both Timer LED and CPU usage LED
1814 functions. You may choose to use both, but the Timer LED function
1815 will overrule the CPU usage LED.
1816
1817config ALIGNMENT_TRAP
1818 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001819 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001821 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001823 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1825 address divisible by 4. On 32-bit ARM processors, these non-aligned
1826 fetch/store instructions will be emulated in software if you say
1827 here, which has a severe performance impact. This is necessary for
1828 correct operation of some network protocols. With an IP-only
1829 configuration it is safe to say N, otherwise say Y.
1830
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001831config UACCESS_WITH_MEMCPY
1832 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1833 depends on MMU && EXPERIMENTAL
1834 default y if CPU_FEROCEON
1835 help
1836 Implement faster copy_to_user and clear_user methods for CPU
1837 cores where a 8-word STM instruction give significantly higher
1838 memory write throughput than a sequence of individual 32bit stores.
1839
1840 A possible side effect is a slight increase in scheduling latency
1841 between threads sharing the same address space if they invoke
1842 such copy operations with large buffers.
1843
1844 However, if the CPU data cache is using a write-allocate mode,
1845 this option is unlikely to provide any performance gain.
1846
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001847config SECCOMP
1848 bool
1849 prompt "Enable seccomp to safely compute untrusted bytecode"
1850 ---help---
1851 This kernel feature is useful for number crunching applications
1852 that may need to compute untrusted bytecode during their
1853 execution. By using pipes or other transports made available to
1854 the process as file descriptors supporting the read/write
1855 syscalls, it's possible to isolate those applications in
1856 their own address space using seccomp. Once seccomp is
1857 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1858 and the task is only allowed to execute a few safe syscalls
1859 defined by each seccomp mode.
1860
Nicolas Pitrec743f382010-05-24 23:55:42 -04001861config CC_STACKPROTECTOR
1862 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001863 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001864 help
1865 This option turns on the -fstack-protector GCC feature. This
1866 feature puts, at the beginning of functions, a canary value on
1867 the stack just before the return address, and validates
1868 the value just before actually returning. Stack based buffer
1869 overflows (that need to overwrite this return address) now also
1870 overwrite the canary, which gets detected and the attack is then
1871 neutralized via a kernel panic.
1872 This feature requires gcc version 4.2 or above.
1873
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001874config DEPRECATED_PARAM_STRUCT
1875 bool "Provide old way to pass kernel parameters"
1876 help
1877 This was deprecated in 2001 and announced to live on for 5 years.
1878 Some old boot loaders still use this way.
1879
Linus Torvalds1da177e2005-04-16 15:20:36 -07001880endmenu
1881
1882menu "Boot options"
1883
Grant Likely9eb8f672011-04-28 14:27:20 -06001884config USE_OF
1885 bool "Flattened Device Tree support"
1886 select OF
1887 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001888 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001889 help
1890 Include support for flattened device tree machine descriptions.
1891
Linus Torvalds1da177e2005-04-16 15:20:36 -07001892# Compressed boot loader in ROM. Yes, we really want to ask about
1893# TEXT and BSS so we preserve their values in the config files.
1894config ZBOOT_ROM_TEXT
1895 hex "Compressed ROM boot loader base address"
1896 default "0"
1897 help
1898 The physical address at which the ROM-able zImage is to be
1899 placed in the target. Platforms which normally make use of
1900 ROM-able zImage formats normally set this to a suitable
1901 value in their defconfig file.
1902
1903 If ZBOOT_ROM is not enabled, this has no effect.
1904
1905config ZBOOT_ROM_BSS
1906 hex "Compressed ROM boot loader BSS address"
1907 default "0"
1908 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001909 The base address of an area of read/write memory in the target
1910 for the ROM-able zImage which must be available while the
1911 decompressor is running. It must be large enough to hold the
1912 entire decompressed kernel plus an additional 128 KiB.
1913 Platforms which normally make use of ROM-able zImage formats
1914 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915
1916 If ZBOOT_ROM is not enabled, this has no effect.
1917
1918config ZBOOT_ROM
1919 bool "Compressed boot loader in ROM/flash"
1920 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1921 help
1922 Say Y here if you intend to execute your compressed kernel image
1923 (zImage) directly from ROM or flash. If unsure, say N.
1924
Simon Horman090ab3f2011-04-26 06:29:53 +01001925choice
1926 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1927 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1928 default ZBOOT_ROM_NONE
1929 help
1930 Include experimental SD/MMC loading code in the ROM-able zImage.
1931 With this enabled it is possible to write the the ROM-able zImage
1932 kernel image to an MMC or SD card and boot the kernel straight
1933 from the reset vector. At reset the processor Mask ROM will load
1934 the first part of the the ROM-able zImage which in turn loads the
1935 rest the kernel image to RAM.
1936
1937config ZBOOT_ROM_NONE
1938 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1939 help
1940 Do not load image from SD or MMC
1941
Simon Hormanf45b1142011-01-11 04:01:08 +01001942config ZBOOT_ROM_MMCIF
1943 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001944 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001945 Load image from MMCIF hardware block.
1946
1947config ZBOOT_ROM_SH_MOBILE_SDHI
1948 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1949 help
1950 Load image from SDHI hardware block
1951
1952endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001953
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001954config ARM_APPENDED_DTB
1955 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1956 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1957 help
1958 With this option, the boot code will look for a device tree binary
1959 (DTB) appended to zImage
1960 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1961
1962 This is meant as a backward compatibility convenience for those
1963 systems with a bootloader that can't be upgraded to accommodate
1964 the documented boot protocol using a device tree.
1965
1966 Beware that there is very little in terms of protection against
1967 this option being confused by leftover garbage in memory that might
1968 look like a DTB header after a reboot if no actual DTB is appended
1969 to zImage. Do not leave this option active in a production kernel
1970 if you don't intend to always append a DTB. Proper passing of the
1971 location into r2 of a bootloader provided DTB is always preferable
1972 to this option.
1973
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001974config ARM_ATAG_DTB_COMPAT
1975 bool "Supplement the appended DTB with traditional ATAG information"
1976 depends on ARM_APPENDED_DTB
1977 help
1978 Some old bootloaders can't be updated to a DTB capable one, yet
1979 they provide ATAGs with memory configuration, the ramdisk address,
1980 the kernel cmdline string, etc. Such information is dynamically
1981 provided by the bootloader and can't always be stored in a static
1982 DTB. To allow a device tree enabled kernel to be used with such
1983 bootloaders, this option allows zImage to extract the information
1984 from the ATAG list and store it at run time into the appended DTB.
1985
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986config CMDLINE
1987 string "Default kernel command string"
1988 default ""
1989 help
1990 On some architectures (EBSA110 and CATS), there is currently no way
1991 for the boot loader to pass arguments to the kernel. For these
1992 architectures, you should supply some command-line options at build
1993 time by entering them here. As a minimum, you should specify the
1994 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1995
Victor Boivie4394c122011-05-04 17:07:55 +01001996choice
1997 prompt "Kernel command line type" if CMDLINE != ""
1998 default CMDLINE_FROM_BOOTLOADER
1999
2000config CMDLINE_FROM_BOOTLOADER
2001 bool "Use bootloader kernel arguments if available"
2002 help
2003 Uses the command-line options passed by the boot loader. If
2004 the boot loader doesn't provide any, the default kernel command
2005 string provided in CMDLINE will be used.
2006
2007config CMDLINE_EXTEND
2008 bool "Extend bootloader kernel arguments"
2009 help
2010 The command-line arguments provided by the boot loader will be
2011 appended to the default kernel command string.
2012
Alexander Holler92d20402010-02-16 19:04:53 +01002013config CMDLINE_FORCE
2014 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002015 help
2016 Always use the default kernel command string, even if the boot
2017 loader passes other arguments to the kernel.
2018 This is useful if you cannot or don't want to change the
2019 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002020endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002021
Linus Torvalds1da177e2005-04-16 15:20:36 -07002022config XIP_KERNEL
2023 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002024 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025 help
2026 Execute-In-Place allows the kernel to run from non-volatile storage
2027 directly addressable by the CPU, such as NOR flash. This saves RAM
2028 space since the text section of the kernel is not loaded from flash
2029 to RAM. Read-write sections, such as the data section and stack,
2030 are still copied to RAM. The XIP kernel is not compressed since
2031 it has to run directly from flash, so it will take more space to
2032 store it. The flash address used to link the kernel object files,
2033 and for storing it, is configuration dependent. Therefore, if you
2034 say Y here, you must know the proper physical address where to
2035 store the kernel image depending on your own flash memory usage.
2036
2037 Also note that the make target becomes "make xipImage" rather than
2038 "make zImage" or "make Image". The final kernel binary to put in
2039 ROM memory will be arch/arm/boot/xipImage.
2040
2041 If unsure, say N.
2042
2043config XIP_PHYS_ADDR
2044 hex "XIP Kernel Physical Location"
2045 depends on XIP_KERNEL
2046 default "0x00080000"
2047 help
2048 This is the physical address in your flash memory the kernel will
2049 be linked for and stored to. This address is dependent on your
2050 own flash usage.
2051
Richard Purdiec587e4a2007-02-06 21:29:00 +01002052config KEXEC
2053 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002054 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002055 help
2056 kexec is a system call that implements the ability to shutdown your
2057 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002058 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002059 you can start any kernel with it, not just Linux.
2060
2061 It is an ongoing process to be certain the hardware in a machine
2062 is properly shutdown, so do not be surprised if this code does not
2063 initially work for you. It may help to enable device hotplugging
2064 support.
2065
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002066config ATAGS_PROC
2067 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002068 depends on KEXEC
2069 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002070 help
2071 Should the atags used to boot the kernel be exported in an "atags"
2072 file in procfs. Useful with kexec.
2073
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002074config CRASH_DUMP
2075 bool "Build kdump crash kernel (EXPERIMENTAL)"
2076 depends on EXPERIMENTAL
2077 help
2078 Generate crash dump after being started by kexec. This should
2079 be normally only set in special crash dump kernels which are
2080 loaded in the main kernel with kexec-tools into a specially
2081 reserved region and then later executed after a crash by
2082 kdump/kexec. The crash dump kernel must be compiled to a
2083 memory address not used by the main kernel
2084
2085 For more details see Documentation/kdump/kdump.txt
2086
Eric Miaoe69edc792010-07-05 15:56:50 +02002087config AUTO_ZRELADDR
2088 bool "Auto calculation of the decompressed kernel image address"
2089 depends on !ZBOOT_ROM && !ARCH_U300
2090 help
2091 ZRELADDR is the physical address where the decompressed kernel
2092 image will be placed. If AUTO_ZRELADDR is selected, the address
2093 will be determined at run-time by masking the current IP with
2094 0xf8000000. This assumes the zImage being placed in the first 128MB
2095 from start of memory.
2096
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097endmenu
2098
Russell Kingac9d7ef2008-08-18 17:26:00 +01002099menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100
Ben Dooks89c52ed2009-07-30 23:23:24 +01002101if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002102
2103source "drivers/cpufreq/Kconfig"
2104
Yong Shen64f102b2010-10-21 21:18:59 +08002105config CPU_FREQ_IMX
2106 tristate "CPUfreq driver for i.MX CPUs"
2107 depends on ARCH_MXC && CPU_FREQ
2108 help
2109 This enables the CPUfreq driver for i.MX CPUs.
2110
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111config CPU_FREQ_SA1100
2112 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113
2114config CPU_FREQ_SA1110
2115 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116
2117config CPU_FREQ_INTEGRATOR
2118 tristate "CPUfreq driver for ARM Integrator CPUs"
2119 depends on ARCH_INTEGRATOR && CPU_FREQ
2120 default y
2121 help
2122 This enables the CPUfreq driver for ARM Integrator CPUs.
2123
2124 For details, take a look at <file:Documentation/cpu-freq>.
2125
2126 If in doubt, say Y.
2127
Russell King9e2697f2007-12-14 13:30:14 +00002128config CPU_FREQ_PXA
2129 bool
2130 depends on CPU_FREQ && ARCH_PXA && PXA25x
2131 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002132 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002133 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2134
Ben Dooks9d56c022009-07-30 23:23:25 +01002135config CPU_FREQ_S3C
2136 bool
2137 help
2138 Internal configuration node for common cpufreq on Samsung SoC
2139
2140config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002141 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002142 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002143 select CPU_FREQ_S3C
2144 help
2145 This enables the CPUfreq driver for the Samsung S3C24XX family
2146 of CPUs.
2147
2148 For details, take a look at <file:Documentation/cpu-freq>.
2149
2150 If in doubt, say N.
2151
2152config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002153 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002154 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2155 help
2156 Compile in support for changing the PLL frequency from the
2157 S3C24XX series CPUfreq driver. The PLL takes time to settle
2158 after a frequency change, so by default it is not enabled.
2159
2160 This also means that the PLL tables for the selected CPU(s) will
2161 be built which may increase the size of the kernel image.
2162
2163config CPU_FREQ_S3C24XX_DEBUG
2164 bool "Debug CPUfreq Samsung driver core"
2165 depends on CPU_FREQ_S3C24XX
2166 help
2167 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2168
2169config CPU_FREQ_S3C24XX_IODEBUG
2170 bool "Debug CPUfreq Samsung driver IO timing"
2171 depends on CPU_FREQ_S3C24XX
2172 help
2173 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2174
Ben Dookse6d197a2009-07-30 23:23:42 +01002175config CPU_FREQ_S3C24XX_DEBUGFS
2176 bool "Export debugfs for CPUFreq"
2177 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2178 help
2179 Export status information via debugfs.
2180
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181endif
2182
Russell Kingac9d7ef2008-08-18 17:26:00 +01002183source "drivers/cpuidle/Kconfig"
2184
2185endmenu
2186
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187menu "Floating point emulation"
2188
2189comment "At least one emulation must be selected"
2190
2191config FPE_NWFPE
2192 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002193 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 ---help---
2195 Say Y to include the NWFPE floating point emulator in the kernel.
2196 This is necessary to run most binaries. Linux does not currently
2197 support floating point hardware so you need to say Y here even if
2198 your machine has an FPA or floating point co-processor podule.
2199
2200 You may say N here if you are going to load the Acorn FPEmulator
2201 early in the bootup.
2202
2203config FPE_NWFPE_XP
2204 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002205 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206 help
2207 Say Y to include 80-bit support in the kernel floating-point
2208 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2209 Note that gcc does not generate 80-bit operations by default,
2210 so in most cases this option only enlarges the size of the
2211 floating point emulator without any good reason.
2212
2213 You almost surely want to say N here.
2214
2215config FPE_FASTFPE
2216 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002217 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218 ---help---
2219 Say Y here to include the FAST floating point emulator in the kernel.
2220 This is an experimental much faster emulator which now also has full
2221 precision for the mantissa. It does not support any exceptions.
2222 It is very simple, and approximately 3-6 times faster than NWFPE.
2223
2224 It should be sufficient for most programs. It may be not suitable
2225 for scientific calculations, but you have to check this for yourself.
2226 If you do not feel you need a faster FP emulation you should better
2227 choose NWFPE.
2228
2229config VFP
2230 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002231 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232 help
2233 Say Y to include VFP support code in the kernel. This is needed
2234 if your hardware includes a VFP unit.
2235
2236 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2237 release notes and additional status information.
2238
2239 Say N if your target does not have VFP hardware.
2240
Catalin Marinas25ebee02007-09-25 15:22:24 +01002241config VFPv3
2242 bool
2243 depends on VFP
2244 default y if CPU_V7
2245
Catalin Marinasb5872db2008-01-10 19:16:17 +01002246config NEON
2247 bool "Advanced SIMD (NEON) Extension support"
2248 depends on VFPv3 && CPU_V7
2249 help
2250 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2251 Extension.
2252
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253endmenu
2254
2255menu "Userspace binary formats"
2256
2257source "fs/Kconfig.binfmt"
2258
2259config ARTHUR
2260 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002261 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262 help
2263 Say Y here to include the kernel code necessary if you want to run
2264 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2265 experimental; if this sounds frightening, say N and sleep in peace.
2266 You can also say M here to compile this support as a module (which
2267 will be called arthur).
2268
2269endmenu
2270
2271menu "Power management options"
2272
Russell Kingeceab4a2005-11-15 11:31:41 +00002273source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274
Johannes Bergf4cb5702007-12-08 02:14:00 +01002275config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002276 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002277 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2278 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002279 def_bool y
2280
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002281config ARM_CPU_SUSPEND
2282 def_bool PM_SLEEP
2283
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284endmenu
2285
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002286source "net/Kconfig"
2287
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002288source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002289
2290source "fs/Kconfig"
2291
Linus Torvalds1da177e2005-04-16 15:20:36 -07002292source "arch/arm/Kconfig.debug"
2293
2294source "security/Kconfig"
2295
2296source "crypto/Kconfig"
2297
2298source "lib/Kconfig"