blob: cf006d40342ca4d51a0128ca0ae60dc36452cd6f [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
600 help
601 Support for the NXP LPC32XX family of processors
602
Russell King788c9702009-04-26 14:21:59 +0100603config ARCH_MV78XX0
604 bool "Marvell MV78xx0"
605 select CPU_FEROCEON
606 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700607 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100608 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600609 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100610 select PLAT_ORION
611 help
612 Support for the following Marvell MV78xx0 series SoCs:
613 MV781x0, MV782x0.
614
615config ARCH_ORION5X
616 bool "Marvell Orion"
617 depends on MMU
618 select CPU_FEROCEON
619 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700620 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100621 select GENERIC_CLOCKEVENTS
622 select PLAT_ORION
623 help
624 Support for the following Marvell Orion 5x series SoCs:
625 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
626 Orion-2 (5281), Orion-1-90 (6183).
627
628config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500629 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100630 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100631 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100632 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100633 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800634 select GPIO_PXA
Russell King788c9702009-04-26 14:21:59 +0100635 select TICK_ONESHOT
636 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400637 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800638 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100639 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500640 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100641
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100642config ARCH_KS8695
643 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000644 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100645 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000646 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400647 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100648 help
649 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
650 System-on-Chip devices.
651
Russell King788c9702009-04-26 14:21:59 +0100652config ARCH_W90X900
653 bool "Nuvoton W90X900 CPU"
654 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100655 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100656 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100657 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100658 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200659 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100660 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
661 At present, the w90x900 has been renamed nuc900, regarding
662 the ARM series product line, you can login the following
663 link address to know more.
664
665 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
666 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400667
Erik Gillingc5f80062010-01-21 16:53:02 -0800668config ARCH_TEGRA
669 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000670 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100671 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800672 select GENERIC_CLOCKEVENTS
673 select GENERIC_GPIO
674 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000675 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000676 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600677 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700678 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800679 help
680 This enables support for NVIDIA Tegra based systems (Tegra APX,
681 Tegra 6xx and Tegra 2 series).
682
Jamie Ilesaf756552011-07-25 17:36:42 +0100683config ARCH_PICOXCELL
684 bool "Picochip picoXcell"
685 select ARCH_REQUIRE_GPIOLIB
686 select ARM_PATCH_PHYS_VIRT
687 select ARM_VIC
688 select CPU_V6K
689 select DW_APB_TIMER
690 select GENERIC_CLOCKEVENTS
691 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100692 select HAVE_TCM
693 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000694 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100695 select USE_OF
696 help
697 This enables support for systems based on the Picochip picoXcell
698 family of Femtocell devices. The picoxcell support requires device tree
699 for all boards.
700
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100701config ARCH_PNX4008
702 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000703 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100704 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000705 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100706 help
707 This enables support for Philips PNX4008 mobile platform.
708
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700710 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100711 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500712 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100713 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100714 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100715 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700716 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100717 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800718 select GPIO_PXA
Russell Kinga88264c2007-11-12 22:45:16 +0000719 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800720 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800721 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800722 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800723 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200724 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200725 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000726 help
eric miao2c8086a2007-09-11 19:13:17 -0700727 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728
Russell King788c9702009-04-26 14:21:59 +0100729config ARCH_MSM
730 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500731 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800732 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700733 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800734 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800735 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800736 Support for Qualcomm MSM/QSD based systems. This runs on the
737 apps processor of the MSM/QSD and depends on a shared memory
738 interface to the modem processor which runs the baseband
739 stack and controls some vital subsystems
740 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800741
Magnus Dammc793c1b2010-02-05 11:14:49 +0000742config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900743 bool "Renesas SH-Mobile / R-Mobile"
744 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900745 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900746 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000747 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900748 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000749 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900750 select NO_IOPORT
751 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000752 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200753 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400754 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000755 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900756 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000757
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758config ARCH_RPC
759 bool "RiscPC"
760 select ARCH_ACORN
761 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100762 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100763 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000764 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000765 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100766 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000767 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200768 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600769 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400770 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 help
772 On the Acorn Risc-PC, Linux can support the internal IDE disk and
773 CD-ROM interface, serial and parallel port, and the floppy drive.
774
775config ARCH_SA1100
776 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100777 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000778 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100779 select ISA
Russell King05944d72006-11-30 20:43:51 +0000780 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500781 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100782 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000783 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100784 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800785 select CLKDEV_LOOKUP
Russell King3e238be2008-04-14 23:03:10 +0100786 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700787 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200788 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400789 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100790 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000791 help
792 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900794config ARCH_S3C24XX
795 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800796 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100797 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700798 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900799 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000800 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900802 select HAVE_S3C_RTC if RTC_CLASS
803 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600804 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900806 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
807 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
808 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
809 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900810
Ben Dooksa08ab632008-10-21 14:06:39 +0100811config ARCH_S3C64XX
812 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000813 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900814 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900815 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100816 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900817 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900818 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900819 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000820 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100821 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900822 select ARCH_REQUIRE_GPIOLIB
823 select SAMSUNG_CLKSRC
824 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900825 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900826 select S3C_DEV_NAND
827 select USB_ARCH_HAS_OHCI
828 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900829 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900830 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100831 help
832 Samsung S3C64XX series based systems
833
Kukjin Kim49b7a492010-09-07 15:47:18 +0900834config ARCH_S5P64X0
835 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900836 select CPU_V6
837 select GENERIC_GPIO
838 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900839 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900840 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900841 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900842 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900843 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900844 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900845 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900846 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
847 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900848
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200849config ARCH_S5PC100
850 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900851 select GENERIC_GPIO
852 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900853 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900854 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900855 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900856 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900857 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900858 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900859 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200860 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900861
Kukjin Kim170f4e42010-02-24 16:40:44 +0900862config ARCH_S5PV210
863 bool "Samsung S5PV210/S5PC110"
864 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900865 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900866 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900867 select GENERIC_GPIO
868 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900869 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900870 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900871 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900872 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900873 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900874 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900875 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400876 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900877 help
878 Samsung S5PV210/S5PC110 series based systems
879
Kukjin Kim83014572011-11-06 13:54:56 +0900880config ARCH_EXYNOS
881 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900882 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900883 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900884 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900885 select GENERIC_GPIO
886 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900887 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900888 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900889 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900890 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900891 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900892 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400893 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900894 help
Kukjin Kim83014572011-11-06 13:54:56 +0900895 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900896
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897config ARCH_SHARK
898 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000899 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100900 select ISA
901 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100902 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100903 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000904 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400905 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600906 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000907 help
908 Support for the StrongARM based Digital DNARD machine, also known
909 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
Linus Walleijd98aac72009-04-27 10:21:46 +0100911config ARCH_U300
912 bool "ST-Ericsson U300 Series"
913 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100914 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100915 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100916 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100917 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200918 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100919 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100920 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100921 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900922 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100923 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100924 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100925 help
926 Support for ST-Ericsson U300 series mobile platforms.
927
Russell Kingccf50e22010-03-15 19:03:06 +0000928config ARCH_U8500
929 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700930 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000931 select CPU_V7
932 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000933 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100934 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100935 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100936 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000937 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000938 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000939 help
940 Support for ST-Ericsson's Ux500 architecture
941
942config ARCH_NOMADIK
943 bool "STMicroelectronics Nomadik"
944 select ARM_AMBA
945 select ARM_VIC
946 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100947 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000948 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000949 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000950 select ARCH_REQUIRE_GPIOLIB
951 help
952 Support for the Nomadik platform by ST-Ericsson
953
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100954config ARCH_DAVINCI
955 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100956 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700957 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100958 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700959 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100960 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700961 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100962 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530963 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100964 help
965 Support for TI's DaVinci platform.
966
Russell King3b938be2007-05-12 11:25:44 +0100967config ARCH_OMAP
968 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700969 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700970 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100971 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700972 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700973 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800974 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100975 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200976 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100977
viresh kumarcee37e52010-04-01 12:31:05 +0100978config PLAT_SPEAR
979 bool "ST SPEAr"
980 select ARM_AMBA
981 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100982 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100983 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100984 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100985 select HAVE_CLK
986 help
987 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
988
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100989config ARCH_VT8500
990 bool "VIA/WonderMedia 85xx"
991 select CPU_ARM926T
992 select GENERIC_GPIO
993 select ARCH_HAS_CPUFREQ
994 select GENERIC_CLOCKEVENTS
995 select ARCH_REQUIRE_GPIOLIB
996 select HAVE_PWM
997 help
998 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800999
John Linnb85a3ef2011-06-20 11:47:27 -06001000config ARCH_ZYNQ
1001 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001002 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001003 select GENERIC_CLOCKEVENTS
1004 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001005 select ARM_GIC
1006 select ARM_AMBA
1007 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001008 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001009 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001010 help
John Linnb85a3ef2011-06-20 11:47:27 -06001011 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012endchoice
1013
Russell Kingccf50e22010-03-15 19:03:06 +00001014#
1015# This is sorted alphabetically by mach-* pathname. However, plat-*
1016# Kconfigs may be included either alphabetically (according to the
1017# plat- suffix) or along side the corresponding mach-* source.
1018#
Russell King95b8f202010-01-14 11:43:54 +00001019source "arch/arm/mach-at91/Kconfig"
1020
1021source "arch/arm/mach-bcmring/Kconfig"
1022
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023source "arch/arm/mach-clps711x/Kconfig"
1024
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001025source "arch/arm/mach-cns3xxx/Kconfig"
1026
Russell King95b8f202010-01-14 11:43:54 +00001027source "arch/arm/mach-davinci/Kconfig"
1028
1029source "arch/arm/mach-dove/Kconfig"
1030
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001031source "arch/arm/mach-ep93xx/Kconfig"
1032
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033source "arch/arm/mach-footbridge/Kconfig"
1034
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001035source "arch/arm/mach-gemini/Kconfig"
1036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-h720x/Kconfig"
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source "arch/arm/mach-integrator/Kconfig"
1040
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001041source "arch/arm/mach-iop32x/Kconfig"
1042
1043source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044
Dan Williams285f5fa2006-12-07 02:59:39 +01001045source "arch/arm/mach-iop13xx/Kconfig"
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047source "arch/arm/mach-ixp4xx/Kconfig"
1048
1049source "arch/arm/mach-ixp2000/Kconfig"
1050
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001051source "arch/arm/mach-ixp23xx/Kconfig"
1052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-kirkwood/Kconfig"
1054
1055source "arch/arm/mach-ks8695/Kconfig"
1056
Kevin Wells40805942010-07-27 08:49:04 -07001057source "arch/arm/mach-lpc32xx/Kconfig"
1058
Russell King95b8f202010-01-14 11:43:54 +00001059source "arch/arm/mach-msm/Kconfig"
1060
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001061source "arch/arm/mach-mv78xx0/Kconfig"
1062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001065source "arch/arm/mach-mxs/Kconfig"
1066
Russell King95b8f202010-01-14 11:43:54 +00001067source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001068
Russell King95b8f202010-01-14 11:43:54 +00001069source "arch/arm/mach-nomadik/Kconfig"
1070source "arch/arm/plat-nomadik/Kconfig"
1071
Tony Lindgrend48af152005-07-10 19:58:17 +01001072source "arch/arm/plat-omap/Kconfig"
1073
1074source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075
Tony Lindgren1dbae812005-11-10 14:26:51 +00001076source "arch/arm/mach-omap2/Kconfig"
1077
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001078source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001079
Russell King95b8f202010-01-14 11:43:54 +00001080source "arch/arm/mach-pxa/Kconfig"
1081source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082
Russell King95b8f202010-01-14 11:43:54 +00001083source "arch/arm/mach-mmp/Kconfig"
1084
1085source "arch/arm/mach-realview/Kconfig"
1086
1087source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001088
Ben Dookscf383672009-11-10 00:14:58 +00001089source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001090source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001091source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001092
viresh kumarcee37e52010-04-01 12:31:05 +01001093source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001094
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001095source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001096if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001097source "arch/arm/mach-s3c2412/Kconfig"
1098source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001099endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100
Ben Dooksa08ab632008-10-21 14:06:39 +01001101if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001102source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001103endif
1104
Kukjin Kim49b7a492010-09-07 15:47:18 +09001105source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001106
Byungho Min5a7652f2009-06-23 21:39:42 +09001107source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001108
Kukjin Kim170f4e42010-02-24 16:40:44 +09001109source "arch/arm/mach-s5pv210/Kconfig"
1110
Kukjin Kim83014572011-11-06 13:54:56 +09001111source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001112
Russell King882d01f2010-03-02 23:40:15 +00001113source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114
Erik Gillingc5f80062010-01-21 16:53:02 -08001115source "arch/arm/mach-tegra/Kconfig"
1116
Russell King95b8f202010-01-14 11:43:54 +00001117source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001118
Russell King95b8f202010-01-14 11:43:54 +00001119source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001120
1121source "arch/arm/mach-versatile/Kconfig"
1122
Russell Kingceade892010-02-11 21:44:53 +00001123source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001124source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001125
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001126source "arch/arm/mach-vt8500/Kconfig"
1127
wanzongshun7ec80dd2008-12-03 03:55:38 +01001128source "arch/arm/mach-w90x900/Kconfig"
1129
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130# Definitions to make life easier
1131config ARCH_ACORN
1132 bool
1133
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001134config PLAT_IOP
1135 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001136 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001137
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001138config PLAT_ORION
1139 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001140 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001141 select GENERIC_IRQ_CHIP
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001142
Eric Miaobd5ce432009-01-20 12:06:01 +08001143config PLAT_PXA
1144 bool
1145
Russell Kingf4b8b312010-01-14 12:48:06 +00001146config PLAT_VERSATILE
1147 bool
1148
Russell Kinge3887712010-01-14 13:30:16 +00001149config ARM_TIMER_SP804
1150 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001151 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001152 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001153
Linus Torvalds1da177e2005-04-16 15:20:36 -07001154source arch/arm/mm/Kconfig
1155
Russell King958cab02011-12-11 10:04:00 +00001156config ARM_NR_BANKS
1157 int
1158 default 16 if ARCH_EP93XX
1159 default 8
1160
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001161config IWMMXT
1162 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001163 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1164 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001165 help
1166 Enable support for iWMMXt context switching at run time if
1167 running on a CPU that supports it.
1168
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169config XSCALE_PMU
1170 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001171 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172 default y
1173
Jamie Iles0f4f0672010-02-02 20:23:15 +01001174config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001175 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001176 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001177 default y
1178 bool
1179
eric miao52108642010-12-13 09:42:34 +01001180config MULTI_IRQ_HANDLER
1181 bool
1182 help
1183 Allow each machine to specify it's own IRQ handler at run time.
1184
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001185if !MMU
1186source "arch/arm/Kconfig-nommu"
1187endif
1188
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001189config ARM_ERRATA_411920
1190 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001191 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001192 help
1193 Invalidation of the Instruction Cache operation can
1194 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1195 It does not affect the MPCore. This option enables the ARM Ltd.
1196 recommended workaround.
1197
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001198config ARM_ERRATA_430973
1199 bool "ARM errata: Stale prediction on replaced interworking branch"
1200 depends on CPU_V7
1201 help
1202 This option enables the workaround for the 430973 Cortex-A8
1203 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1204 interworking branch is replaced with another code sequence at the
1205 same virtual address, whether due to self-modifying code or virtual
1206 to physical address re-mapping, Cortex-A8 does not recover from the
1207 stale interworking branch prediction. This results in Cortex-A8
1208 executing the new code sequence in the incorrect ARM or Thumb state.
1209 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1210 and also flushes the branch target cache at every context switch.
1211 Note that setting specific bits in the ACTLR register may not be
1212 available in non-secure mode.
1213
Catalin Marinas855c5512009-04-30 17:06:15 +01001214config ARM_ERRATA_458693
1215 bool "ARM errata: Processor deadlock when a false hazard is created"
1216 depends on CPU_V7
1217 help
1218 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1219 erratum. For very specific sequences of memory operations, it is
1220 possible for a hazard condition intended for a cache line to instead
1221 be incorrectly associated with a different cache line. This false
1222 hazard might then cause a processor deadlock. The workaround enables
1223 the L1 caching of the NEON accesses and disables the PLD instruction
1224 in the ACTLR register. Note that setting specific bits in the ACTLR
1225 register may not be available in non-secure mode.
1226
Catalin Marinas0516e462009-04-30 17:06:20 +01001227config ARM_ERRATA_460075
1228 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1229 depends on CPU_V7
1230 help
1231 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1232 erratum. Any asynchronous access to the L2 cache may encounter a
1233 situation in which recent store transactions to the L2 cache are lost
1234 and overwritten with stale memory contents from external memory. The
1235 workaround disables the write-allocate mode for the L2 cache via the
1236 ACTLR register. Note that setting specific bits in the ACTLR register
1237 may not be available in non-secure mode.
1238
Will Deacon9f050272010-09-14 09:51:43 +01001239config ARM_ERRATA_742230
1240 bool "ARM errata: DMB operation may be faulty"
1241 depends on CPU_V7 && SMP
1242 help
1243 This option enables the workaround for the 742230 Cortex-A9
1244 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1245 between two write operations may not ensure the correct visibility
1246 ordering of the two writes. This workaround sets a specific bit in
1247 the diagnostic register of the Cortex-A9 which causes the DMB
1248 instruction to behave as a DSB, ensuring the correct behaviour of
1249 the two writes.
1250
Will Deacona672e992010-09-14 09:53:02 +01001251config ARM_ERRATA_742231
1252 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1253 depends on CPU_V7 && SMP
1254 help
1255 This option enables the workaround for the 742231 Cortex-A9
1256 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1257 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1258 accessing some data located in the same cache line, may get corrupted
1259 data due to bad handling of the address hazard when the line gets
1260 replaced from one of the CPUs at the same time as another CPU is
1261 accessing it. This workaround sets specific bits in the diagnostic
1262 register of the Cortex-A9 which reduces the linefill issuing
1263 capabilities of the processor.
1264
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001265config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001266 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001267 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001268 help
1269 The PL310 L2 cache controller implements three types of Clean &
1270 Invalidate maintenance operations: by Physical Address
1271 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1272 They are architecturally defined to behave as the execution of a
1273 clean operation followed immediately by an invalidate operation,
1274 both performing to the same memory location. This functionality
1275 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001276 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001277
1278config ARM_ERRATA_720789
1279 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001280 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001281 help
1282 This option enables the workaround for the 720789 Cortex-A9 (prior to
1283 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1284 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1285 As a consequence of this erratum, some TLB entries which should be
1286 invalidated are not, resulting in an incoherency in the system page
1287 tables. The workaround changes the TLB flushing routines to invalidate
1288 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001289
Russell King1f0090a2011-03-16 23:35:25 +00001290config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001291 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001292 depends on CACHE_L2X0
1293 help
1294 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1295 operation (offset 0x7FC). This operation runs in background so that
1296 PL310 can handle normal accesses while it is in progress. Under very
1297 rare circumstances, due to this erratum, write data can be lost when
1298 PL310 treats a cacheable write transaction during a Clean &
1299 Invalidate by Way operation.
1300
Will Deacon475d92f2010-09-28 14:02:02 +01001301config ARM_ERRATA_743622
1302 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1303 depends on CPU_V7
1304 help
1305 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001306 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001307 optimisation in the Cortex-A9 Store Buffer may lead to data
1308 corruption. This workaround sets a specific bit in the diagnostic
1309 register of the Cortex-A9 which disables the Store Buffer
1310 optimisation, preventing the defect from occurring. This has no
1311 visible impact on the overall performance or power consumption of the
1312 processor.
1313
Will Deacon9a27c272011-02-18 16:36:35 +01001314config ARM_ERRATA_751472
1315 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001316 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001317 help
1318 This option enables the workaround for the 751472 Cortex-A9 (prior
1319 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1320 completion of a following broadcasted operation if the second
1321 operation is received by a CPU before the ICIALLUIS has completed,
1322 potentially leading to corrupted entries in the cache or TLB.
1323
Will Deaconfa0ce402011-11-14 17:24:57 +01001324config PL310_ERRATA_753970
1325 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001326 depends on CACHE_PL310
1327 help
1328 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1329
1330 Under some condition the effect of cache sync operation on
1331 the store buffer still remains when the operation completes.
1332 This means that the store buffer is always asked to drain and
1333 this prevents it from merging any further writes. The workaround
1334 is to replace the normal offset of cache sync operation (0x730)
1335 by another offset targeting an unmapped PL310 register 0x740.
1336 This has the same effect as the cache sync operation: store buffer
1337 drain and waiting for all buffers empty.
1338
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001339config ARM_ERRATA_754322
1340 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1341 depends on CPU_V7
1342 help
1343 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1344 r3p*) erratum. A speculative memory access may cause a page table walk
1345 which starts prior to an ASID switch but completes afterwards. This
1346 can populate the micro-TLB with a stale entry which may be hit with
1347 the new ASID. This workaround places two dsb instructions in the mm
1348 switching code so that no page table walks can cross the ASID switch.
1349
Will Deacon5dab26af2011-03-04 12:38:54 +01001350config ARM_ERRATA_754327
1351 bool "ARM errata: no automatic Store Buffer drain"
1352 depends on CPU_V7 && SMP
1353 help
1354 This option enables the workaround for the 754327 Cortex-A9 (prior to
1355 r2p0) erratum. The Store Buffer does not have any automatic draining
1356 mechanism and therefore a livelock may occur if an external agent
1357 continuously polls a memory location waiting to observe an update.
1358 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1359 written polling loops from denying visibility of updates to memory.
1360
Catalin Marinas145e10e2011-08-15 11:04:41 +01001361config ARM_ERRATA_364296
1362 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1363 depends on CPU_V6 && !SMP
1364 help
1365 This options enables the workaround for the 364296 ARM1136
1366 r0p2 erratum (possible cache data corruption with
1367 hit-under-miss enabled). It sets the undocumented bit 31 in
1368 the auxiliary control register and the FI bit in the control
1369 register, thus disabling hit-under-miss without putting the
1370 processor into full low interrupt latency mode. ARM11MPCore
1371 is not affected.
1372
Will Deaconf630c1b2011-09-15 11:45:15 +01001373config ARM_ERRATA_764369
1374 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1375 depends on CPU_V7 && SMP
1376 help
1377 This option enables the workaround for erratum 764369
1378 affecting Cortex-A9 MPCore with two or more processors (all
1379 current revisions). Under certain timing circumstances, a data
1380 cache line maintenance operation by MVA targeting an Inner
1381 Shareable memory region may fail to proceed up to either the
1382 Point of Coherency or to the Point of Unification of the
1383 system. This workaround adds a DSB instruction before the
1384 relevant cache maintenance functions and sets a specific bit
1385 in the diagnostic control register of the SCU.
1386
Will Deacon11ed0ba2011-11-14 17:24:58 +01001387config PL310_ERRATA_769419
1388 bool "PL310 errata: no automatic Store Buffer drain"
1389 depends on CACHE_L2X0
1390 help
1391 On revisions of the PL310 prior to r3p2, the Store Buffer does
1392 not automatically drain. This can cause normal, non-cacheable
1393 writes to be retained when the memory system is idle, leading
1394 to suboptimal I/O performance for drivers using coherent DMA.
1395 This option adds a write barrier to the cpu_idle loop so that,
1396 on systems with an outer cache, the store buffer is drained
1397 explicitly.
1398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399endmenu
1400
1401source "arch/arm/common/Kconfig"
1402
Linus Torvalds1da177e2005-04-16 15:20:36 -07001403menu "Bus support"
1404
1405config ARM_AMBA
1406 bool
1407
1408config ISA
1409 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 help
1411 Find out whether you have ISA slots on your motherboard. ISA is the
1412 name of a bus system, i.e. the way the CPU talks to the other stuff
1413 inside your box. Other bus systems are PCI, EISA, MicroChannel
1414 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1415 newer boards don't support it. If you have ISA, say Y, otherwise N.
1416
Russell King065909b2006-01-04 15:44:16 +00001417# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418config ISA_DMA
1419 bool
Russell King065909b2006-01-04 15:44:16 +00001420 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421
Russell King065909b2006-01-04 15:44:16 +00001422# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001423config ISA_DMA_API
1424 bool
Al Viro5cae8412005-05-04 05:39:22 +01001425
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001427 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428 help
1429 Find out whether you have a PCI motherboard. PCI is the name of a
1430 bus system, i.e. the way the CPU talks to the other stuff inside
1431 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1432 VESA. If you have PCI, say Y, otherwise N.
1433
Anton Vorontsov52882172010-04-19 13:20:49 +01001434config PCI_DOMAINS
1435 bool
1436 depends on PCI
1437
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001438config PCI_NANOENGINE
1439 bool "BSE nanoEngine PCI support"
1440 depends on SA1100_NANOENGINE
1441 help
1442 Enable PCI on the BSE nanoEngine board.
1443
Matthew Wilcox36e23592007-07-10 10:54:40 -06001444config PCI_SYSCALL
1445 def_bool PCI
1446
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447# Select the host bridge type
1448config PCI_HOST_VIA82C505
1449 bool
1450 depends on PCI && ARCH_SHARK
1451 default y
1452
Mike Rapoporta0113a92007-11-25 08:55:34 +01001453config PCI_HOST_ITE8152
1454 bool
1455 depends on PCI && MACH_ARMCORE
1456 default y
1457 select DMABOUNCE
1458
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459source "drivers/pci/Kconfig"
1460
1461source "drivers/pcmcia/Kconfig"
1462
1463endmenu
1464
1465menu "Kernel Features"
1466
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001467source "kernel/time/Kconfig"
1468
Dave Martin3b556582011-12-07 15:38:04 +00001469config HAVE_SMP
1470 bool
1471 help
1472 This option should be selected by machines which have an SMP-
1473 capable CPU.
1474
1475 The only effect of this option is to make the SMP-related
1476 options available to the user for configuration.
1477
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001479 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001480 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001481 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001482 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001483 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001484 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001485 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 help
1487 This enables support for systems with more than one CPU. If you have
1488 a system with only one CPU, like most personal computers, say N. If
1489 you have a system with more than one CPU, say Y.
1490
1491 If you say N here, the kernel will run on single and multiprocessor
1492 machines, but will use only one CPU of a multiprocessor machine. If
1493 you say Y here, the kernel will run on many, but not all, single
1494 processor machines. On a single processor machine, the kernel will
1495 run faster if you say N here.
1496
Paul Bolle395cf962011-08-15 02:02:26 +02001497 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001499 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500
1501 If you don't know what to do here, say N.
1502
Russell Kingf00ec482010-09-04 10:47:48 +01001503config SMP_ON_UP
1504 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1505 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001506 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001507 default y
1508 help
1509 SMP kernels contain instructions which fail on non-SMP processors.
1510 Enabling this option allows the kernel to modify itself to make
1511 these instructions safe. Disabling it allows about 1K of space
1512 savings.
1513
1514 If you don't know what to do here, say Y.
1515
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001516config ARM_CPU_TOPOLOGY
1517 bool "Support cpu topology definition"
1518 depends on SMP && CPU_V7
1519 default y
1520 help
1521 Support ARM cpu topology definition. The MPIDR register defines
1522 affinity between processors which is then used to describe the cpu
1523 topology of an ARM System.
1524
1525config SCHED_MC
1526 bool "Multi-core scheduler support"
1527 depends on ARM_CPU_TOPOLOGY
1528 help
1529 Multi-core scheduler support improves the CPU scheduler's decision
1530 making when dealing with multi-core CPU chips at a cost of slightly
1531 increased overhead in some places. If unsure say N here.
1532
1533config SCHED_SMT
1534 bool "SMT scheduler support"
1535 depends on ARM_CPU_TOPOLOGY
1536 help
1537 Improves the CPU scheduler's decision making when dealing with
1538 MultiThreading at a cost of slightly increased overhead in some
1539 places. If unsure say N here.
1540
Russell Kinga8cbcd92009-05-16 11:51:14 +01001541config HAVE_ARM_SCU
1542 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001543 help
1544 This option enables support for the ARM system coherency unit
1545
Russell Kingf32f4ce2009-05-16 12:14:21 +01001546config HAVE_ARM_TWD
1547 bool
1548 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001549 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001550 help
1551 This options enables support for the ARM timer and watchdog unit
1552
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001553choice
1554 prompt "Memory split"
1555 default VMSPLIT_3G
1556 help
1557 Select the desired split between kernel and user memory.
1558
1559 If you are not absolutely sure what you are doing, leave this
1560 option alone!
1561
1562 config VMSPLIT_3G
1563 bool "3G/1G user/kernel split"
1564 config VMSPLIT_2G
1565 bool "2G/2G user/kernel split"
1566 config VMSPLIT_1G
1567 bool "1G/3G user/kernel split"
1568endchoice
1569
1570config PAGE_OFFSET
1571 hex
1572 default 0x40000000 if VMSPLIT_1G
1573 default 0x80000000 if VMSPLIT_2G
1574 default 0xC0000000
1575
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576config NR_CPUS
1577 int "Maximum number of CPUs (2-32)"
1578 range 2 32
1579 depends on SMP
1580 default "4"
1581
Russell Kinga054a812005-11-02 22:24:33 +00001582config HOTPLUG_CPU
1583 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1584 depends on SMP && HOTPLUG && EXPERIMENTAL
1585 help
1586 Say Y here to experiment with turning CPUs off and on. CPUs
1587 can be controlled through /sys/devices/system/cpu.
1588
Russell King37ee16a2005-11-08 19:08:05 +00001589config LOCAL_TIMERS
1590 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001591 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001592 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001593 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001594 help
1595 Enable support for local timers on SMP platforms, rather then the
1596 legacy IPI broadcast method. Local timers allows the system
1597 accounting to be spread across the timer interval, preventing a
1598 "thundering herd" at every timer tick.
1599
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001600config ARCH_NR_GPIO
1601 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001602 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001603 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001604 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001605 default 0
1606 help
1607 Maximum number of GPIOs in the system.
1608
1609 If unsure, leave the default value.
1610
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001611source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001612
Russell Kingf8065812006-03-02 22:41:59 +00001613config HZ
1614 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001615 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001616 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001617 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001618 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001619 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001620 default 100
1621
Catalin Marinas16c79652009-07-24 12:33:02 +01001622config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001623 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001624 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001625 select AEABI
1626 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001627 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001628 help
1629 By enabling this option, the kernel will be compiled in
1630 Thumb-2 mode. A compiler/assembler that understand the unified
1631 ARM-Thumb syntax is needed.
1632
1633 If unsure, say N.
1634
Dave Martin6f685c52011-03-03 11:41:12 +01001635config THUMB2_AVOID_R_ARM_THM_JUMP11
1636 bool "Work around buggy Thumb-2 short branch relocations in gas"
1637 depends on THUMB2_KERNEL && MODULES
1638 default y
1639 help
1640 Various binutils versions can resolve Thumb-2 branches to
1641 locally-defined, preemptible global symbols as short-range "b.n"
1642 branch instructions.
1643
1644 This is a problem, because there's no guarantee the final
1645 destination of the symbol, or any candidate locations for a
1646 trampoline, are within range of the branch. For this reason, the
1647 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1648 relocation in modules at all, and it makes little sense to add
1649 support.
1650
1651 The symptom is that the kernel fails with an "unsupported
1652 relocation" error when loading some modules.
1653
1654 Until fixed tools are available, passing
1655 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1656 code which hits this problem, at the cost of a bit of extra runtime
1657 stack usage in some cases.
1658
1659 The problem is described in more detail at:
1660 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1661
1662 Only Thumb-2 kernels are affected.
1663
1664 Unless you are sure your tools don't have this problem, say Y.
1665
Catalin Marinas0becb082009-07-24 12:32:53 +01001666config ARM_ASM_UNIFIED
1667 bool
1668
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001669config AEABI
1670 bool "Use the ARM EABI to compile the kernel"
1671 help
1672 This option allows for the kernel to be compiled using the latest
1673 ARM ABI (aka EABI). This is only useful if you are using a user
1674 space environment that is also compiled with EABI.
1675
1676 Since there are major incompatibilities between the legacy ABI and
1677 EABI, especially with regard to structure member alignment, this
1678 option also changes the kernel syscall calling convention to
1679 disambiguate both ABIs and allow for backward compatibility support
1680 (selected with CONFIG_OABI_COMPAT).
1681
1682 To use this you need GCC version 4.0.0 or later.
1683
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001684config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001685 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001686 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001687 default y
1688 help
1689 This option preserves the old syscall interface along with the
1690 new (ARM EABI) one. It also provides a compatibility layer to
1691 intercept syscalls that have structure arguments which layout
1692 in memory differs between the legacy ABI and the new ARM EABI
1693 (only for non "thumb" binaries). This option adds a tiny
1694 overhead to all syscalls and produces a slightly larger kernel.
1695 If you know you'll be using only pure EABI user space then you
1696 can say N here. If this option is not selected and you attempt
1697 to execute a legacy ABI binary then the result will be
1698 UNPREDICTABLE (in fact it can be predicted that it won't work
1699 at all). If in doubt say Y.
1700
Mel Gormaneb335752009-05-13 17:34:48 +01001701config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001702 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001703
Russell King05944d72006-11-30 20:43:51 +00001704config ARCH_SPARSEMEM_ENABLE
1705 bool
1706
Russell King07a2f732008-10-01 21:39:58 +01001707config ARCH_SPARSEMEM_DEFAULT
1708 def_bool ARCH_SPARSEMEM_ENABLE
1709
Russell King05944d72006-11-30 20:43:51 +00001710config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001711 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001712
Will Deacon7b7bf492011-05-19 13:21:14 +01001713config HAVE_ARCH_PFN_VALID
1714 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1715
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001716config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001717 bool "High Memory Support"
1718 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001719 help
1720 The address space of ARM processors is only 4 Gigabytes large
1721 and it has to accommodate user address space, kernel address
1722 space as well as some memory mapped IO. That means that, if you
1723 have a large amount of physical memory and/or IO, not all of the
1724 memory can be "permanently mapped" by the kernel. The physical
1725 memory that is not permanently mapped is called "high memory".
1726
1727 Depending on the selected kernel/user memory split, minimum
1728 vmalloc space and actual amount of RAM, you may not need this
1729 option which should result in a slightly faster kernel.
1730
1731 If unsure, say n.
1732
Russell King65cec8e2009-08-17 20:02:06 +01001733config HIGHPTE
1734 bool "Allocate 2nd-level pagetables from highmem"
1735 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001736
Jamie Iles1b8873a2010-02-02 20:25:44 +01001737config HW_PERF_EVENTS
1738 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001739 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001740 default y
1741 help
1742 Enable hardware performance counter support for perf events. If
1743 disabled, perf events will use software events only.
1744
Dave Hansen3f22ab22005-06-23 00:07:43 -07001745source "mm/Kconfig"
1746
Magnus Dammc1b2d972010-07-05 10:00:11 +01001747config FORCE_MAX_ZONEORDER
1748 int "Maximum zone order" if ARCH_SHMOBILE
1749 range 11 64 if ARCH_SHMOBILE
1750 default "9" if SA1111
1751 default "11"
1752 help
1753 The kernel memory allocator divides physically contiguous memory
1754 blocks into "zones", where each zone is a power of two number of
1755 pages. This option selects the largest power of two that the kernel
1756 keeps in the memory allocator. If you need to allocate very large
1757 blocks of physically contiguous memory, then you may need to
1758 increase this value.
1759
1760 This config option is actually maximum order plus one. For example,
1761 a value of 11 means that the largest free memory block is 2^10 pages.
1762
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763config LEDS
1764 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001765 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001766 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1768 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001769 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001770 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001771 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 help
1773 If you say Y here, the LEDs on your machine will be used
1774 to provide useful information about your current system status.
1775
1776 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1777 be able to select which LEDs are active using the options below. If
1778 you are compiling a kernel for the EBSA-110 or the LART however, the
1779 red LED will simply flash regularly to indicate that the system is
1780 still functional. It is safe to say Y here if you have a CATS
1781 system, but the driver will do nothing.
1782
1783config LEDS_TIMER
1784 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001785 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1786 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001788 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 default y if ARCH_EBSA110
1790 help
1791 If you say Y here, one of the system LEDs (the green one on the
1792 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1793 will flash regularly to indicate that the system is still
1794 operational. This is mainly useful to kernel hackers who are
1795 debugging unstable kernels.
1796
1797 The LART uses the same LED for both Timer LED and CPU usage LED
1798 functions. You may choose to use both, but the Timer LED function
1799 will overrule the CPU usage LED.
1800
1801config LEDS_CPU
1802 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001803 !ARCH_OMAP) \
1804 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1805 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001806 depends on LEDS
1807 help
1808 If you say Y here, the red LED will be used to give a good real
1809 time indication of CPU usage, by lighting whenever the idle task
1810 is not currently executing.
1811
1812 The LART uses the same LED for both Timer LED and CPU usage LED
1813 functions. You may choose to use both, but the Timer LED function
1814 will overrule the CPU usage LED.
1815
1816config ALIGNMENT_TRAP
1817 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001818 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001820 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001821 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001822 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001823 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1824 address divisible by 4. On 32-bit ARM processors, these non-aligned
1825 fetch/store instructions will be emulated in software if you say
1826 here, which has a severe performance impact. This is necessary for
1827 correct operation of some network protocols. With an IP-only
1828 configuration it is safe to say N, otherwise say Y.
1829
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001830config UACCESS_WITH_MEMCPY
1831 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1832 depends on MMU && EXPERIMENTAL
1833 default y if CPU_FEROCEON
1834 help
1835 Implement faster copy_to_user and clear_user methods for CPU
1836 cores where a 8-word STM instruction give significantly higher
1837 memory write throughput than a sequence of individual 32bit stores.
1838
1839 A possible side effect is a slight increase in scheduling latency
1840 between threads sharing the same address space if they invoke
1841 such copy operations with large buffers.
1842
1843 However, if the CPU data cache is using a write-allocate mode,
1844 this option is unlikely to provide any performance gain.
1845
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001846config SECCOMP
1847 bool
1848 prompt "Enable seccomp to safely compute untrusted bytecode"
1849 ---help---
1850 This kernel feature is useful for number crunching applications
1851 that may need to compute untrusted bytecode during their
1852 execution. By using pipes or other transports made available to
1853 the process as file descriptors supporting the read/write
1854 syscalls, it's possible to isolate those applications in
1855 their own address space using seccomp. Once seccomp is
1856 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1857 and the task is only allowed to execute a few safe syscalls
1858 defined by each seccomp mode.
1859
Nicolas Pitrec743f382010-05-24 23:55:42 -04001860config CC_STACKPROTECTOR
1861 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001862 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001863 help
1864 This option turns on the -fstack-protector GCC feature. This
1865 feature puts, at the beginning of functions, a canary value on
1866 the stack just before the return address, and validates
1867 the value just before actually returning. Stack based buffer
1868 overflows (that need to overwrite this return address) now also
1869 overwrite the canary, which gets detected and the attack is then
1870 neutralized via a kernel panic.
1871 This feature requires gcc version 4.2 or above.
1872
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001873config DEPRECATED_PARAM_STRUCT
1874 bool "Provide old way to pass kernel parameters"
1875 help
1876 This was deprecated in 2001 and announced to live on for 5 years.
1877 Some old boot loaders still use this way.
1878
Linus Torvalds1da177e2005-04-16 15:20:36 -07001879endmenu
1880
1881menu "Boot options"
1882
Grant Likely9eb8f672011-04-28 14:27:20 -06001883config USE_OF
1884 bool "Flattened Device Tree support"
1885 select OF
1886 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001887 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001888 help
1889 Include support for flattened device tree machine descriptions.
1890
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891# Compressed boot loader in ROM. Yes, we really want to ask about
1892# TEXT and BSS so we preserve their values in the config files.
1893config ZBOOT_ROM_TEXT
1894 hex "Compressed ROM boot loader base address"
1895 default "0"
1896 help
1897 The physical address at which the ROM-able zImage is to be
1898 placed in the target. Platforms which normally make use of
1899 ROM-able zImage formats normally set this to a suitable
1900 value in their defconfig file.
1901
1902 If ZBOOT_ROM is not enabled, this has no effect.
1903
1904config ZBOOT_ROM_BSS
1905 hex "Compressed ROM boot loader BSS address"
1906 default "0"
1907 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001908 The base address of an area of read/write memory in the target
1909 for the ROM-able zImage which must be available while the
1910 decompressor is running. It must be large enough to hold the
1911 entire decompressed kernel plus an additional 128 KiB.
1912 Platforms which normally make use of ROM-able zImage formats
1913 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914
1915 If ZBOOT_ROM is not enabled, this has no effect.
1916
1917config ZBOOT_ROM
1918 bool "Compressed boot loader in ROM/flash"
1919 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1920 help
1921 Say Y here if you intend to execute your compressed kernel image
1922 (zImage) directly from ROM or flash. If unsure, say N.
1923
Simon Horman090ab3f2011-04-26 06:29:53 +01001924choice
1925 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1926 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1927 default ZBOOT_ROM_NONE
1928 help
1929 Include experimental SD/MMC loading code in the ROM-able zImage.
1930 With this enabled it is possible to write the the ROM-able zImage
1931 kernel image to an MMC or SD card and boot the kernel straight
1932 from the reset vector. At reset the processor Mask ROM will load
1933 the first part of the the ROM-able zImage which in turn loads the
1934 rest the kernel image to RAM.
1935
1936config ZBOOT_ROM_NONE
1937 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1938 help
1939 Do not load image from SD or MMC
1940
Simon Hormanf45b1142011-01-11 04:01:08 +01001941config ZBOOT_ROM_MMCIF
1942 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001943 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001944 Load image from MMCIF hardware block.
1945
1946config ZBOOT_ROM_SH_MOBILE_SDHI
1947 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1948 help
1949 Load image from SDHI hardware block
1950
1951endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001952
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001953config ARM_APPENDED_DTB
1954 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1955 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1956 help
1957 With this option, the boot code will look for a device tree binary
1958 (DTB) appended to zImage
1959 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1960
1961 This is meant as a backward compatibility convenience for those
1962 systems with a bootloader that can't be upgraded to accommodate
1963 the documented boot protocol using a device tree.
1964
1965 Beware that there is very little in terms of protection against
1966 this option being confused by leftover garbage in memory that might
1967 look like a DTB header after a reboot if no actual DTB is appended
1968 to zImage. Do not leave this option active in a production kernel
1969 if you don't intend to always append a DTB. Proper passing of the
1970 location into r2 of a bootloader provided DTB is always preferable
1971 to this option.
1972
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001973config ARM_ATAG_DTB_COMPAT
1974 bool "Supplement the appended DTB with traditional ATAG information"
1975 depends on ARM_APPENDED_DTB
1976 help
1977 Some old bootloaders can't be updated to a DTB capable one, yet
1978 they provide ATAGs with memory configuration, the ramdisk address,
1979 the kernel cmdline string, etc. Such information is dynamically
1980 provided by the bootloader and can't always be stored in a static
1981 DTB. To allow a device tree enabled kernel to be used with such
1982 bootloaders, this option allows zImage to extract the information
1983 from the ATAG list and store it at run time into the appended DTB.
1984
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985config CMDLINE
1986 string "Default kernel command string"
1987 default ""
1988 help
1989 On some architectures (EBSA110 and CATS), there is currently no way
1990 for the boot loader to pass arguments to the kernel. For these
1991 architectures, you should supply some command-line options at build
1992 time by entering them here. As a minimum, you should specify the
1993 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1994
Victor Boivie4394c122011-05-04 17:07:55 +01001995choice
1996 prompt "Kernel command line type" if CMDLINE != ""
1997 default CMDLINE_FROM_BOOTLOADER
1998
1999config CMDLINE_FROM_BOOTLOADER
2000 bool "Use bootloader kernel arguments if available"
2001 help
2002 Uses the command-line options passed by the boot loader. If
2003 the boot loader doesn't provide any, the default kernel command
2004 string provided in CMDLINE will be used.
2005
2006config CMDLINE_EXTEND
2007 bool "Extend bootloader kernel arguments"
2008 help
2009 The command-line arguments provided by the boot loader will be
2010 appended to the default kernel command string.
2011
Alexander Holler92d20402010-02-16 19:04:53 +01002012config CMDLINE_FORCE
2013 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002014 help
2015 Always use the default kernel command string, even if the boot
2016 loader passes other arguments to the kernel.
2017 This is useful if you cannot or don't want to change the
2018 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002019endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002020
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021config XIP_KERNEL
2022 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002023 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024 help
2025 Execute-In-Place allows the kernel to run from non-volatile storage
2026 directly addressable by the CPU, such as NOR flash. This saves RAM
2027 space since the text section of the kernel is not loaded from flash
2028 to RAM. Read-write sections, such as the data section and stack,
2029 are still copied to RAM. The XIP kernel is not compressed since
2030 it has to run directly from flash, so it will take more space to
2031 store it. The flash address used to link the kernel object files,
2032 and for storing it, is configuration dependent. Therefore, if you
2033 say Y here, you must know the proper physical address where to
2034 store the kernel image depending on your own flash memory usage.
2035
2036 Also note that the make target becomes "make xipImage" rather than
2037 "make zImage" or "make Image". The final kernel binary to put in
2038 ROM memory will be arch/arm/boot/xipImage.
2039
2040 If unsure, say N.
2041
2042config XIP_PHYS_ADDR
2043 hex "XIP Kernel Physical Location"
2044 depends on XIP_KERNEL
2045 default "0x00080000"
2046 help
2047 This is the physical address in your flash memory the kernel will
2048 be linked for and stored to. This address is dependent on your
2049 own flash usage.
2050
Richard Purdiec587e4a2007-02-06 21:29:00 +01002051config KEXEC
2052 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002053 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002054 help
2055 kexec is a system call that implements the ability to shutdown your
2056 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002057 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002058 you can start any kernel with it, not just Linux.
2059
2060 It is an ongoing process to be certain the hardware in a machine
2061 is properly shutdown, so do not be surprised if this code does not
2062 initially work for you. It may help to enable device hotplugging
2063 support.
2064
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002065config ATAGS_PROC
2066 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002067 depends on KEXEC
2068 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002069 help
2070 Should the atags used to boot the kernel be exported in an "atags"
2071 file in procfs. Useful with kexec.
2072
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002073config CRASH_DUMP
2074 bool "Build kdump crash kernel (EXPERIMENTAL)"
2075 depends on EXPERIMENTAL
2076 help
2077 Generate crash dump after being started by kexec. This should
2078 be normally only set in special crash dump kernels which are
2079 loaded in the main kernel with kexec-tools into a specially
2080 reserved region and then later executed after a crash by
2081 kdump/kexec. The crash dump kernel must be compiled to a
2082 memory address not used by the main kernel
2083
2084 For more details see Documentation/kdump/kdump.txt
2085
Eric Miaoe69edc792010-07-05 15:56:50 +02002086config AUTO_ZRELADDR
2087 bool "Auto calculation of the decompressed kernel image address"
2088 depends on !ZBOOT_ROM && !ARCH_U300
2089 help
2090 ZRELADDR is the physical address where the decompressed kernel
2091 image will be placed. If AUTO_ZRELADDR is selected, the address
2092 will be determined at run-time by masking the current IP with
2093 0xf8000000. This assumes the zImage being placed in the first 128MB
2094 from start of memory.
2095
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096endmenu
2097
Russell Kingac9d7ef2008-08-18 17:26:00 +01002098menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099
Ben Dooks89c52ed2009-07-30 23:23:24 +01002100if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002101
2102source "drivers/cpufreq/Kconfig"
2103
Yong Shen64f102b2010-10-21 21:18:59 +08002104config CPU_FREQ_IMX
2105 tristate "CPUfreq driver for i.MX CPUs"
2106 depends on ARCH_MXC && CPU_FREQ
2107 help
2108 This enables the CPUfreq driver for i.MX CPUs.
2109
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110config CPU_FREQ_SA1100
2111 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112
2113config CPU_FREQ_SA1110
2114 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115
2116config CPU_FREQ_INTEGRATOR
2117 tristate "CPUfreq driver for ARM Integrator CPUs"
2118 depends on ARCH_INTEGRATOR && CPU_FREQ
2119 default y
2120 help
2121 This enables the CPUfreq driver for ARM Integrator CPUs.
2122
2123 For details, take a look at <file:Documentation/cpu-freq>.
2124
2125 If in doubt, say Y.
2126
Russell King9e2697f2007-12-14 13:30:14 +00002127config CPU_FREQ_PXA
2128 bool
2129 depends on CPU_FREQ && ARCH_PXA && PXA25x
2130 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002131 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002132 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2133
Ben Dooks9d56c022009-07-30 23:23:25 +01002134config CPU_FREQ_S3C
2135 bool
2136 help
2137 Internal configuration node for common cpufreq on Samsung SoC
2138
2139config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002140 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002141 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002142 select CPU_FREQ_S3C
2143 help
2144 This enables the CPUfreq driver for the Samsung S3C24XX family
2145 of CPUs.
2146
2147 For details, take a look at <file:Documentation/cpu-freq>.
2148
2149 If in doubt, say N.
2150
2151config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002152 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002153 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2154 help
2155 Compile in support for changing the PLL frequency from the
2156 S3C24XX series CPUfreq driver. The PLL takes time to settle
2157 after a frequency change, so by default it is not enabled.
2158
2159 This also means that the PLL tables for the selected CPU(s) will
2160 be built which may increase the size of the kernel image.
2161
2162config CPU_FREQ_S3C24XX_DEBUG
2163 bool "Debug CPUfreq Samsung driver core"
2164 depends on CPU_FREQ_S3C24XX
2165 help
2166 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2167
2168config CPU_FREQ_S3C24XX_IODEBUG
2169 bool "Debug CPUfreq Samsung driver IO timing"
2170 depends on CPU_FREQ_S3C24XX
2171 help
2172 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2173
Ben Dookse6d197a2009-07-30 23:23:42 +01002174config CPU_FREQ_S3C24XX_DEBUGFS
2175 bool "Export debugfs for CPUFreq"
2176 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2177 help
2178 Export status information via debugfs.
2179
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180endif
2181
Russell Kingac9d7ef2008-08-18 17:26:00 +01002182source "drivers/cpuidle/Kconfig"
2183
2184endmenu
2185
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186menu "Floating point emulation"
2187
2188comment "At least one emulation must be selected"
2189
2190config FPE_NWFPE
2191 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002192 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 ---help---
2194 Say Y to include the NWFPE floating point emulator in the kernel.
2195 This is necessary to run most binaries. Linux does not currently
2196 support floating point hardware so you need to say Y here even if
2197 your machine has an FPA or floating point co-processor podule.
2198
2199 You may say N here if you are going to load the Acorn FPEmulator
2200 early in the bootup.
2201
2202config FPE_NWFPE_XP
2203 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002204 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205 help
2206 Say Y to include 80-bit support in the kernel floating-point
2207 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2208 Note that gcc does not generate 80-bit operations by default,
2209 so in most cases this option only enlarges the size of the
2210 floating point emulator without any good reason.
2211
2212 You almost surely want to say N here.
2213
2214config FPE_FASTFPE
2215 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002216 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217 ---help---
2218 Say Y here to include the FAST floating point emulator in the kernel.
2219 This is an experimental much faster emulator which now also has full
2220 precision for the mantissa. It does not support any exceptions.
2221 It is very simple, and approximately 3-6 times faster than NWFPE.
2222
2223 It should be sufficient for most programs. It may be not suitable
2224 for scientific calculations, but you have to check this for yourself.
2225 If you do not feel you need a faster FP emulation you should better
2226 choose NWFPE.
2227
2228config VFP
2229 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002230 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231 help
2232 Say Y to include VFP support code in the kernel. This is needed
2233 if your hardware includes a VFP unit.
2234
2235 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2236 release notes and additional status information.
2237
2238 Say N if your target does not have VFP hardware.
2239
Catalin Marinas25ebee02007-09-25 15:22:24 +01002240config VFPv3
2241 bool
2242 depends on VFP
2243 default y if CPU_V7
2244
Catalin Marinasb5872db2008-01-10 19:16:17 +01002245config NEON
2246 bool "Advanced SIMD (NEON) Extension support"
2247 depends on VFPv3 && CPU_V7
2248 help
2249 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2250 Extension.
2251
Linus Torvalds1da177e2005-04-16 15:20:36 -07002252endmenu
2253
2254menu "Userspace binary formats"
2255
2256source "fs/Kconfig.binfmt"
2257
2258config ARTHUR
2259 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002260 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261 help
2262 Say Y here to include the kernel code necessary if you want to run
2263 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2264 experimental; if this sounds frightening, say N and sleep in peace.
2265 You can also say M here to compile this support as a module (which
2266 will be called arthur).
2267
2268endmenu
2269
2270menu "Power management options"
2271
Russell Kingeceab4a2005-11-15 11:31:41 +00002272source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002273
Johannes Bergf4cb5702007-12-08 02:14:00 +01002274config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002275 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002276 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2277 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002278 def_bool y
2279
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002280config ARM_CPU_SUSPEND
2281 def_bool PM_SLEEP
2282
Linus Torvalds1da177e2005-04-16 15:20:36 -07002283endmenu
2284
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002285source "net/Kconfig"
2286
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002287source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288
2289source "fs/Kconfig"
2290
Linus Torvalds1da177e2005-04-16 15:20:36 -07002291source "arch/arm/Kconfig.debug"
2292
2293source "security/Kconfig"
2294
2295source "crypto/Kconfig"
2296
2297source "lib/Kconfig"