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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
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
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)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
David Garibaldi480a82f2011-10-10 13:30:28 -070027 #select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 help
33 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000034 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000036 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 Europe. There is an ARM Linux project with a web page at
38 <http://www.arm.linux.org.uk/>.
39
Russell King1a189b92008-04-13 21:41:55 +010040config HAVE_PWM
41 bool
42
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010043config MIGHT_HAVE_PCI
44 bool
45
Ralf Baechle75e71532007-02-09 17:08:58 +000046config SYS_SUPPORTS_APM_EMULATION
47 bool
48
Russell King112f38a42010-12-15 19:23:07 +000049config HAVE_SCHED_CLOCK
50 bool
51
David Brownell0a938b92007-03-05 00:30:18 -080052config GENERIC_GPIO
53 bool
David Brownell0a938b92007-03-05 00:30:18 -080054
John Stultz5cfc8ee2010-03-24 00:22:36 +000055config ARCH_USES_GETTIMEOFFSET
56 bool
57 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010058
Kevin Hilman0567a0c2007-03-13 20:29:24 +010059config GENERIC_CLOCKEVENTS
60 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010061
Catalin Marinasa8655e82008-02-04 17:30:57 +010062config GENERIC_CLOCKEVENTS_BROADCAST
63 bool
64 depends on GENERIC_CLOCKEVENTS
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -070065 default y if SMP && !LOCAL_TIMERS
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Brent DeGraaf8e7b8572011-09-21 16:21:31 -0400137config ARM_TICKET_LOCKS
138 bool
139 help
140 Enable ticket locks, which help preserve fairness among
141 contended locks and prevent livelock in multicore systems.
142 Say 'y' if system stability is important.
Jeff Ohlsteinb5a22eb2012-02-27 17:40:16 -0800143 default y if ARCH_MSM_SCORPIONMP || ARCH_MSM_KRAITMP
Brent DeGraaf8e7b8572011-09-21 16:21:31 -0400144 depends on SMP
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config RWSEM_GENERIC_SPINLOCK
147 bool
148 default y
149
150config RWSEM_XCHGADD_ALGORITHM
151 bool
152
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153config ARCH_HAS_ILOG2_U32
154 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800155
156config ARCH_HAS_ILOG2_U64
157 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800158
Ben Dooks89c52ed2009-07-30 23:23:24 +0100159config ARCH_HAS_CPUFREQ
160 bool
161 help
162 Internal node to signify that the ARCH has CPUFREQ support
163 and that the relevant menu configurations are displayed for
164 it.
165
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100166config ARCH_HAS_CPU_IDLE_WAIT
167 def_bool y
168
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800169config GENERIC_HWEIGHT
170 bool
171 default y
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173config GENERIC_CALIBRATE_DELAY
174 bool
175 default y
176
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100177config ARCH_MAY_HAVE_PC_FDC
178 bool
179
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800180config ZONE_DMA
181 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800182
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800183config NEED_DMA_MAP_STATE
184 def_bool y
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config GENERIC_ISA_DMA
187 bool
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189config FIQ
190 bool
191
Al Viro034d2f52005-12-19 16:27:59 -0500192config ARCH_MTD_XIP
193 bool
194
Hyok S. Choic760fc12006-03-27 15:18:50 +0100195config VECTORS_BASE
196 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900197 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100198 default DRAM_BASE if REMAP_VECTORS_TO_RAM
199 default 0x00000000
200 help
201 The base address of exception vectors.
202
Russell Kingdc21af92011-01-04 19:09:43 +0000203config ARM_PATCH_PHYS_VIRT
204 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
205 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100206 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000207 depends on !ARCH_REALVIEW || !SPARSEMEM
208 help
Russell King111e9a52011-05-12 10:02:42 +0100209 Patch phys-to-virt and virt-to-phys translation functions at
210 boot and module load time according to the position of the
211 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000212
Russell King111e9a52011-05-12 10:02:42 +0100213 This can only be used with non-XIP MMU kernels where the base
214 of physical memory is at a 16MB boundary, or theoretically 64K
215 for the MSM machine class.
Russell Kingdc21af92011-01-04 19:09:43 +0000216
Russell Kingcada3c02011-01-04 19:39:29 +0000217config ARM_PATCH_PHYS_VIRT_16BIT
218 def_bool y
219 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
Russell King111e9a52011-05-12 10:02:42 +0100220 help
221 This option extends the physical to virtual translation patching
222 to allow physical memory down to a theoretical minimum of 64K
223 boundaries.
Russell Kingcada3c02011-01-04 19:39:29 +0000224
Simon Glassd3dc3062011-08-16 23:44:26 +0100225config GENERIC_BUG
226 def_bool y
227 depends on BUG
228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229source "init/Kconfig"
230
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700231source "kernel/Kconfig.freezer"
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233menu "System Type"
234
Hyok S. Choi3c427972009-07-24 12:35:00 +0100235config MMU
236 bool "MMU-based Paged Memory Management Support"
237 default y
238 help
239 Select if you want MMU-based virtualised addressing space
240 support by paged memory management. If unsure, say 'Y'.
241
Russell Kingccf50e22010-03-15 19:03:06 +0000242#
243# The "ARM system type" choice list is ordered alphabetically by option
244# text. Please add new entries in the option alphabetic order.
245#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246choice
247 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000248 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100250config ARCH_INTEGRATOR
251 bool "ARM Ltd. Integrator family"
252 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100253 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100254 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000255 select ICST
Russell King13edd862010-01-15 21:49:23 +0000256 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000257 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000258 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100259 help
260 Support for ARM's Integrator platform.
261
262config ARCH_REALVIEW
263 bool "ARM Ltd. RealView family"
264 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100265 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000266 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100267 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100268 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000269 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000270 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000271 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100272 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273 help
274 This enables support for ARM Ltd RealView boards.
275
276config ARCH_VERSATILE
277 bool "ARM Ltd. Versatile family"
278 select ARM_AMBA
279 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100280 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000281 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100282 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100283 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000284 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000285 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000286 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000287 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100288 help
289 This enables support for ARM Ltd Versatile board.
290
Russell Kingceade892010-02-11 21:44:53 +0000291config ARCH_VEXPRESS
292 bool "ARM Ltd. Versatile Express family"
293 select ARCH_WANT_OPTIONAL_GPIOLIB
294 select ARM_AMBA
295 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100296 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000297 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000298 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100299 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000300 select ICST
301 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000302 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000303 help
304 This enables support for the ARM Ltd Versatile Express boards.
305
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100306config ARCH_AT91
307 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100308 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700309 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100310 select CLKDEV_LOOKUP
Jean-Christophe PLAGNIOL-VILLARD3d51f252011-05-03 00:44:58 +0800311 select ARM_PATCH_PHYS_VIRT if MMU
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100312 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100313 This enables support for systems based on the Atmel AT91RM9200,
314 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100315
Russell Kingccf50e22010-03-15 19:03:06 +0000316config ARCH_BCMRING
317 bool "Broadcom BCMRING"
318 depends on MMU
319 select CPU_V6
320 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100321 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100322 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000323 select GENERIC_CLOCKEVENTS
324 select ARCH_WANT_OPTIONAL_GPIOLIB
325 help
326 Support for Broadcom's BCMRing platform.
327
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100329 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000330 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000331 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000332 help
333 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300335config ARCH_CNS3XXX
336 bool "Cavium Networks CNS3XXX family"
337 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300338 select GENERIC_CLOCKEVENTS
339 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100340 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400341 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300342 help
343 Support for Cavium Networks CNS3XXX platform.
344
Russell King788c9702009-04-26 14:21:59 +0100345config ARCH_GEMINI
346 bool "Cortina Systems Gemini"
347 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100348 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000349 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100350 help
351 Support for the Cortina Systems Gemini family SoCs
352
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353config ARCH_EBSA110
354 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000355 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100356 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000357 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000358 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 help
360 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000361 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 Ethernet interface, two PCMCIA sockets, two serial ports and a
363 parallel port.
364
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000365config ARCH_EP93XX
366 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000367 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000368 select ARM_AMBA
369 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100370 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700371 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100372 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000373 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000374 help
375 This enables support for the Cirrus EP93xx series of CPUs.
376
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377config ARCH_FOOTBRIDGE
378 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000379 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000381 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000382 help
383 Support for systems based on the DC21285 companion chip
384 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
Russell King788c9702009-04-26 14:21:59 +0100386config ARCH_MXC
387 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100388 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100389 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100390 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100391 select CLKSRC_MMIO
Jan Weitzelc124bef2011-03-17 13:44:30 +0100392 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100393 help
394 Support for Freescale MXC/iMX-based family of processors
395
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800396config ARCH_MXS
397 bool "Freescale MXS-based"
398 select GENERIC_CLOCKEVENTS
399 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100400 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100401 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800402 help
403 Support for Freescale MXS-based family of processors
404
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100405config ARCH_NETX
406 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100407 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000408 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100409 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100410 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000411 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100412 This enables support for systems based on the Hilscher NetX Soc
413
414config ARCH_H720X
415 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100417 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000418 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100419 help
420 This enables support for systems based on the Hynix HMS720x
421
Russell King3b938be2007-05-12 11:25:44 +0100422config ARCH_IOP13XX
423 bool "IOP13xx-based"
424 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100426 select PLAT_IOP
427 select PCI
428 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100429 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100430 help
431 Support for Intel's IOP13XX (XScale) family of processors.
432
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100433config ARCH_IOP32X
434 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100435 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100437 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100438 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100439 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000440 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100441 Support for Intel's 80219 and IOP32X (XScale) family of
442 processors.
443
444config ARCH_IOP33X
445 bool "IOP33x-based"
446 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000447 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100448 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100449 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100450 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100451 help
452 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453
Russell King3b938be2007-05-12 11:25:44 +0100454config ARCH_IXP23XX
455 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100456 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000457 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100458 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000459 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100460 help
Russell King3b938be2007-05-12 11:25:44 +0100461 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
463config ARCH_IXP2000
464 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100465 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100467 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000468 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000469 help
470 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Russell King3b938be2007-05-12 11:25:44 +0100472config ARCH_IXP4XX
473 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100474 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100475 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100477 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100478 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000479 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100480 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100481 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100482 help
Russell King3b938be2007-05-12 11:25:44 +0100483 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100484
Saeed Bisharaedabd382009-08-06 15:12:43 +0300485config ARCH_DOVE
486 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300487 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300488 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300489 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300490 select GENERIC_CLOCKEVENTS
491 select PLAT_ORION
492 help
493 Support for the Marvell Dove SoC 88AP510
494
Saeed Bishara651c74c2008-06-22 22:45:06 +0200495config ARCH_KIRKWOOD
496 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000497 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200498 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700499 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200500 select GENERIC_CLOCKEVENTS
501 select PLAT_ORION
502 help
503 Support for the following Marvell Kirkwood series SoCs:
504 88F6180, 88F6192 and 88F6281.
505
Russell King788c9702009-04-26 14:21:59 +0100506config ARCH_LOKI
507 bool "Marvell Loki (88RC8480)"
508 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100509 select GENERIC_CLOCKEVENTS
510 select PLAT_ORION
511 help
512 Support for the Marvell Loki (88RC8480) SoC.
513
Kevin Wells40805942010-07-27 08:49:04 -0700514config ARCH_LPC32XX
515 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100516 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700517 select CPU_ARM926T
518 select ARCH_REQUIRE_GPIOLIB
519 select HAVE_IDE
520 select ARM_AMBA
521 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100522 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700523 select GENERIC_TIME
524 select GENERIC_CLOCKEVENTS
525 help
526 Support for the NXP LPC32XX family of processors
527
Russell King788c9702009-04-26 14:21:59 +0100528config ARCH_MV78XX0
529 bool "Marvell MV78xx0"
530 select CPU_FEROCEON
531 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700532 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100533 select GENERIC_CLOCKEVENTS
534 select PLAT_ORION
535 help
536 Support for the following Marvell MV78xx0 series SoCs:
537 MV781x0, MV782x0.
538
539config ARCH_ORION5X
540 bool "Marvell Orion"
541 depends on MMU
542 select CPU_FEROCEON
543 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700544 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100545 select GENERIC_CLOCKEVENTS
546 select PLAT_ORION
547 help
548 Support for the following Marvell Orion 5x series SoCs:
549 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
550 Orion-2 (5281), Orion-1-90 (6183).
551
552config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500553 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100554 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100555 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100556 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100557 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000558 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100559 select TICK_ONESHOT
560 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400561 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100562 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500563 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100564
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100565config ARCH_KS8695
566 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000567 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100568 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000569 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100570 help
571 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
572 System-on-Chip devices.
573
Russell King788c9702009-04-26 14:21:59 +0100574config ARCH_W90X900
575 bool "Nuvoton W90X900 CPU"
576 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100577 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100578 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100579 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100580 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200581 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100582 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
583 At present, the w90x900 has been renamed nuc900, regarding
584 the ARM series product line, you can login the following
585 link address to know more.
586
587 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
588 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400589
wanzongshuna62e9032009-12-31 15:06:05 +0100590config ARCH_NUC93X
591 bool "Nuvoton NUC93X CPU"
592 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100593 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100594 help
595 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
596 low-power and high performance MPEG-4/JPEG multimedia controller chip.
597
Erik Gillingc5f80062010-01-21 16:53:02 -0800598config ARCH_TEGRA
599 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000600 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100601 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800602 select GENERIC_TIME
603 select GENERIC_CLOCKEVENTS
604 select GENERIC_GPIO
605 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000606 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800607 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700608 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800609 help
610 This enables support for NVIDIA Tegra based systems (Tegra APX,
611 Tegra 6xx and Tegra 2 series).
612
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100613config ARCH_PNX4008
614 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000615 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100616 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000617 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100618 help
619 This enables support for Philips PNX4008 mobile platform.
620
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700622 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100623 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500624 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100625 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100627 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700628 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100629 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000630 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000631 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800632 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800633 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000634 help
eric miao2c8086a2007-09-11 19:13:17 -0700635 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636
Russell King788c9702009-04-26 14:21:59 +0100637config ARCH_MSM
638 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500639 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800640 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700641 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800642 select CLKDEV_LOOKUP
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700643 select ARCH_HAS_CPUFREQ
644 select GENERIC_GPIO
645 select GENERIC_TIME
646 select GENERIC_ALLOCATOR
Jeff Ohlstein4e93ae12011-09-26 18:22:26 -0700647 select HAVE_SCHED_CLOCK
Eric Miao49cbe782009-01-20 14:15:18 +0800648 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800649 Support for Qualcomm MSM/QSD based systems. This runs on the
650 apps processor of the MSM/QSD and depends on a shared memory
651 interface to the modem processor which runs the baseband
652 stack and controls some vital subsystems
653 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800654
Magnus Dammc793c1b2010-02-05 11:14:49 +0000655config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900656 bool "Renesas SH-Mobile / R-Mobile"
657 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900658 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900659 select GENERIC_CLOCKEVENTS
660 select NO_IOPORT
661 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000662 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000663 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900664 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000665
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666config ARCH_RPC
667 bool "RiscPC"
668 select ARCH_ACORN
669 select FIQ
670 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100671 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100672 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000673 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000674 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100675 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 help
678 On the Acorn Risc-PC, Linux can support the internal IDE disk and
679 CD-ROM interface, serial and parallel port, and the floppy drive.
680
681config ARCH_SA1100
682 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100683 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000684 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100685 select ISA
Russell King05944d72006-11-30 20:43:51 +0000686 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500687 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100688 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000689 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100690 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700691 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000692 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100693 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700694 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000695 help
696 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697
698config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900699 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800700 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100701 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700702 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000703 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900704 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 help
706 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
707 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000708 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709
Ben Dooks63b1f512010-04-30 16:32:26 +0900710 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300711 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900712 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
713
Ben Dooksa08ab632008-10-21 14:06:39 +0100714config ARCH_S3C64XX
715 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000716 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900717 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900718 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100719 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900720 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000721 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100722 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900723 select ARCH_REQUIRE_GPIOLIB
724 select SAMSUNG_CLKSRC
725 select SAMSUNG_IRQ_VIC_TIMER
726 select SAMSUNG_IRQ_UART
727 select S3C_GPIO_TRACK
728 select S3C_GPIO_PULL_UPDOWN
729 select S3C_GPIO_CFG_S3C24XX
730 select S3C_GPIO_CFG_S3C64XX
731 select S3C_DEV_NAND
732 select USB_ARCH_HAS_OHCI
733 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900734 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900735 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100736 help
737 Samsung S3C64XX series based systems
738
Kukjin Kim49b7a492010-09-07 15:47:18 +0900739config ARCH_S5P64X0
740 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900741 select CPU_V6
742 select GENERIC_GPIO
743 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900744 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900745 select GENERIC_CLOCKEVENTS
746 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900748 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900749 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900750 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
751 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900752
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200753config ARCH_S5PC100
754 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900755 select GENERIC_GPIO
756 select HAVE_CLK
757 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100758 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900759 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900760 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900761 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900762 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900763 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200764 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900765
Kukjin Kim170f4e42010-02-24 16:40:44 +0900766config ARCH_S5PV210
767 bool "Samsung S5PV210/S5PC110"
768 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900769 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900770 select GENERIC_GPIO
771 select HAVE_CLK
772 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900773 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900774 select GENERIC_CLOCKEVENTS
775 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900776 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900777 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900778 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900779 help
780 Samsung S5PV210/S5PC110 series based systems
781
Kukjin Kim10606aa2011-02-14 15:05:27 +0900782config ARCH_EXYNOS4
783 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900784 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900785 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900786 select GENERIC_GPIO
787 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900788 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900789 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900790 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900791 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900792 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900793 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900794 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900795
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796config ARCH_SHARK
797 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000798 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100799 select ISA
800 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100801 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100802 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000803 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000804 help
805 Support for the StrongARM based Digital DNARD machine, also known
806 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807
Hans J. Koch83ef3332010-09-17 18:13:56 +0200808config ARCH_TCC_926
809 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100810 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200811 select CPU_ARM926T
812 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100813 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200814 select GENERIC_CLOCKEVENTS
815 help
816 Support for Telechips TCC ARM926-based systems.
817
Linus Walleijd98aac72009-04-27 10:21:46 +0100818config ARCH_U300
819 bool "ST-Ericsson U300 Series"
820 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100821 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100822 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000823 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100824 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100825 select ARM_AMBA
826 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100827 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100828 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100829 select GENERIC_GPIO
830 help
831 Support for ST-Ericsson U300 series mobile platforms.
832
Russell Kingccf50e22010-03-15 19:03:06 +0000833config ARCH_U8500
834 bool "ST-Ericsson U8500 Series"
835 select CPU_V7
836 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000837 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100838 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100839 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100840 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000841 help
842 Support for ST-Ericsson's Ux500 architecture
843
844config ARCH_NOMADIK
845 bool "STMicroelectronics Nomadik"
846 select ARM_AMBA
847 select ARM_VIC
848 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100849 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000850 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000851 select ARCH_REQUIRE_GPIOLIB
852 help
853 Support for the Nomadik platform by ST-Ericsson
854
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100855config ARCH_DAVINCI
856 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100857 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700858 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100859 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700860 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100861 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700862 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100863 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530864 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100865 help
866 Support for TI's DaVinci platform.
867
Russell King3b938be2007-05-12 11:25:44 +0100868config ARCH_OMAP
869 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700870 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700871 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100872 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700873 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000874 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800875 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100876 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200877 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100878
viresh kumarcee37e52010-04-01 12:31:05 +0100879config PLAT_SPEAR
880 bool "ST SPEAr"
881 select ARM_AMBA
882 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100883 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100884 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100885 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100886 select HAVE_CLK
887 help
888 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
889
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100890config ARCH_VT8500
891 bool "VIA/WonderMedia 85xx"
892 select CPU_ARM926T
893 select GENERIC_GPIO
894 select ARCH_HAS_CPUFREQ
895 select GENERIC_CLOCKEVENTS
896 select ARCH_REQUIRE_GPIOLIB
897 select HAVE_PWM
898 help
899 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900endchoice
901
Russell Kingccf50e22010-03-15 19:03:06 +0000902#
903# This is sorted alphabetically by mach-* pathname. However, plat-*
904# Kconfigs may be included either alphabetically (according to the
905# plat- suffix) or along side the corresponding mach-* source.
906#
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/mach-at91/Kconfig"
908
909source "arch/arm/mach-bcmring/Kconfig"
910
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911source "arch/arm/mach-clps711x/Kconfig"
912
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300913source "arch/arm/mach-cns3xxx/Kconfig"
914
Russell King95b8f202010-01-14 11:43:54 +0000915source "arch/arm/mach-davinci/Kconfig"
916
917source "arch/arm/mach-dove/Kconfig"
918
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000919source "arch/arm/mach-ep93xx/Kconfig"
920
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921source "arch/arm/mach-footbridge/Kconfig"
922
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200923source "arch/arm/mach-gemini/Kconfig"
924
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-h720x/Kconfig"
926
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927source "arch/arm/mach-integrator/Kconfig"
928
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100929source "arch/arm/mach-iop32x/Kconfig"
930
931source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932
Dan Williams285f5fa2006-12-07 02:59:39 +0100933source "arch/arm/mach-iop13xx/Kconfig"
934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935source "arch/arm/mach-ixp4xx/Kconfig"
936
937source "arch/arm/mach-ixp2000/Kconfig"
938
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100939source "arch/arm/mach-ixp23xx/Kconfig"
940
Russell King95b8f202010-01-14 11:43:54 +0000941source "arch/arm/mach-kirkwood/Kconfig"
942
943source "arch/arm/mach-ks8695/Kconfig"
944
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200945source "arch/arm/mach-loki/Kconfig"
946
Kevin Wells40805942010-07-27 08:49:04 -0700947source "arch/arm/mach-lpc32xx/Kconfig"
948
Russell King95b8f202010-01-14 11:43:54 +0000949source "arch/arm/mach-msm/Kconfig"
950
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200951source "arch/arm/mach-mv78xx0/Kconfig"
952
Russell King95b8f202010-01-14 11:43:54 +0000953source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800955source "arch/arm/mach-mxs/Kconfig"
956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-nomadik/Kconfig"
960source "arch/arm/plat-nomadik/Kconfig"
961
Russell Kingd91a8912010-02-04 18:13:17 +0000962source "arch/arm/mach-nuc93x/Kconfig"
963
Tony Lindgrend48af152005-07-10 19:58:17 +0100964source "arch/arm/plat-omap/Kconfig"
965
966source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967
Tony Lindgren1dbae812005-11-10 14:26:51 +0000968source "arch/arm/mach-omap2/Kconfig"
969
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400970source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400971
Russell King95b8f202010-01-14 11:43:54 +0000972source "arch/arm/mach-pxa/Kconfig"
973source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-mmp/Kconfig"
976
977source "arch/arm/mach-realview/Kconfig"
978
979source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300980
Ben Dookscf383672009-11-10 00:14:58 +0000981source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900983source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100984
viresh kumarcee37e52010-04-01 12:31:05 +0100985source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100986
Hans J. Koch83ef3332010-09-17 18:13:56 +0200987source "arch/arm/plat-tcc/Kconfig"
988
Ben Dooksa21765a2007-02-11 18:31:01 +0100989if ARCH_S3C2410
990source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100992source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900993source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100994source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100995source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100996endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Ben Dooksa08ab632008-10-21 14:06:39 +0100998if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900999source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001000endif
1001
Kukjin Kim49b7a492010-09-07 15:47:18 +09001002source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001003
Byungho Min5a7652f2009-06-23 21:39:42 +09001004source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001005
Kukjin Kim170f4e42010-02-24 16:40:44 +09001006source "arch/arm/mach-s5pv210/Kconfig"
1007
Kukjin Kim10606aa2011-02-14 15:05:27 +09001008source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001009
Russell King882d01f2010-03-02 23:40:15 +00001010source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
Erik Gillingc5f80062010-01-21 16:53:02 -08001012source "arch/arm/mach-tegra/Kconfig"
1013
Russell King95b8f202010-01-14 11:43:54 +00001014source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015
Russell King95b8f202010-01-14 11:43:54 +00001016source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
1018source "arch/arm/mach-versatile/Kconfig"
1019
Russell Kingceade892010-02-11 21:44:53 +00001020source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001021source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001022
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001023source "arch/arm/mach-vt8500/Kconfig"
1024
wanzongshun7ec80dd2008-12-03 03:55:38 +01001025source "arch/arm/mach-w90x900/Kconfig"
1026
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027# Definitions to make life easier
1028config ARCH_ACORN
1029 bool
1030
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001031config PLAT_IOP
1032 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001033 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001034 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001035
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001036config PLAT_ORION
1037 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001038 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001039 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001040 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001041
Eric Miaobd5ce432009-01-20 12:06:01 +08001042config PLAT_PXA
1043 bool
1044
Russell Kingf4b8b312010-01-14 12:48:06 +00001045config PLAT_VERSATILE
1046 bool
1047
Russell Kinge3887712010-01-14 13:30:16 +00001048config ARM_TIMER_SP804
1049 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001050 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001051
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052source arch/arm/mm/Kconfig
1053
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001054config RESERVE_FIRST_PAGE
1055 bool
1056 default n
1057 help
1058 Reserve the first page at PHYS_OFFSET. The first
1059 physical page is used by many platforms for warm
1060 boot operations. Reserve this page so that it is
1061 not allocated by the kernel.
1062
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001063config IWMMXT
1064 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001065 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1066 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001067 help
1068 Enable support for iWMMXt context switching at run time if
1069 running on a CPU that supports it.
1070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1072config XSCALE_PMU
1073 bool
1074 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1075 default y
1076
Jamie Iles0f4f0672010-02-02 20:23:15 +01001077config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001078 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001079 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001080 default y
1081 bool
1082
eric miao52108642010-12-13 09:42:34 +01001083config MULTI_IRQ_HANDLER
1084 bool
1085 help
1086 Allow each machine to specify it's own IRQ handler at run time.
1087
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001088if !MMU
1089source "arch/arm/Kconfig-nommu"
1090endif
1091
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001092config ARM_ERRATA_411920
1093 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001094 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001095 help
1096 Invalidation of the Instruction Cache operation can
1097 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1098 It does not affect the MPCore. This option enables the ARM Ltd.
1099 recommended workaround.
1100
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001101config ARM_ERRATA_430973
1102 bool "ARM errata: Stale prediction on replaced interworking branch"
1103 depends on CPU_V7
1104 help
1105 This option enables the workaround for the 430973 Cortex-A8
1106 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1107 interworking branch is replaced with another code sequence at the
1108 same virtual address, whether due to self-modifying code or virtual
1109 to physical address re-mapping, Cortex-A8 does not recover from the
1110 stale interworking branch prediction. This results in Cortex-A8
1111 executing the new code sequence in the incorrect ARM or Thumb state.
1112 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1113 and also flushes the branch target cache at every context switch.
1114 Note that setting specific bits in the ACTLR register may not be
1115 available in non-secure mode.
1116
Catalin Marinas855c5512009-04-30 17:06:15 +01001117config ARM_ERRATA_458693
1118 bool "ARM errata: Processor deadlock when a false hazard is created"
1119 depends on CPU_V7
1120 help
1121 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1122 erratum. For very specific sequences of memory operations, it is
1123 possible for a hazard condition intended for a cache line to instead
1124 be incorrectly associated with a different cache line. This false
1125 hazard might then cause a processor deadlock. The workaround enables
1126 the L1 caching of the NEON accesses and disables the PLD instruction
1127 in the ACTLR register. Note that setting specific bits in the ACTLR
1128 register may not be available in non-secure mode.
1129
Catalin Marinas0516e462009-04-30 17:06:20 +01001130config ARM_ERRATA_460075
1131 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1132 depends on CPU_V7
1133 help
1134 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1135 erratum. Any asynchronous access to the L2 cache may encounter a
1136 situation in which recent store transactions to the L2 cache are lost
1137 and overwritten with stale memory contents from external memory. The
1138 workaround disables the write-allocate mode for the L2 cache via the
1139 ACTLR register. Note that setting specific bits in the ACTLR register
1140 may not be available in non-secure mode.
1141
Will Deacon9f050272010-09-14 09:51:43 +01001142config ARM_ERRATA_742230
1143 bool "ARM errata: DMB operation may be faulty"
1144 depends on CPU_V7 && SMP
1145 help
1146 This option enables the workaround for the 742230 Cortex-A9
1147 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1148 between two write operations may not ensure the correct visibility
1149 ordering of the two writes. This workaround sets a specific bit in
1150 the diagnostic register of the Cortex-A9 which causes the DMB
1151 instruction to behave as a DSB, ensuring the correct behaviour of
1152 the two writes.
1153
Will Deacona672e992010-09-14 09:53:02 +01001154config ARM_ERRATA_742231
1155 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1156 depends on CPU_V7 && SMP
1157 help
1158 This option enables the workaround for the 742231 Cortex-A9
1159 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1160 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1161 accessing some data located in the same cache line, may get corrupted
1162 data due to bad handling of the address hazard when the line gets
1163 replaced from one of the CPUs at the same time as another CPU is
1164 accessing it. This workaround sets specific bits in the diagnostic
1165 register of the Cortex-A9 which reduces the linefill issuing
1166 capabilities of the processor.
1167
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001168config PL310_ERRATA_588369
1169 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001170 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001171 help
1172 The PL310 L2 cache controller implements three types of Clean &
1173 Invalidate maintenance operations: by Physical Address
1174 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1175 They are architecturally defined to behave as the execution of a
1176 clean operation followed immediately by an invalidate operation,
1177 both performing to the same memory location. This functionality
1178 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001179 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001180
1181config ARM_ERRATA_720789
1182 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1183 depends on CPU_V7 && SMP
1184 help
1185 This option enables the workaround for the 720789 Cortex-A9 (prior to
1186 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1187 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1188 As a consequence of this erratum, some TLB entries which should be
1189 invalidated are not, resulting in an incoherency in the system page
1190 tables. The workaround changes the TLB flushing routines to invalidate
1191 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001192
Russell King1f0090a2011-03-16 23:35:25 +00001193config PL310_ERRATA_727915
1194 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1195 depends on CACHE_L2X0
1196 help
1197 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1198 operation (offset 0x7FC). This operation runs in background so that
1199 PL310 can handle normal accesses while it is in progress. Under very
1200 rare circumstances, due to this erratum, write data can be lost when
1201 PL310 treats a cacheable write transaction during a Clean &
1202 Invalidate by Way operation.
1203
Will Deacon475d92f2010-09-28 14:02:02 +01001204config ARM_ERRATA_743622
1205 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1206 depends on CPU_V7
1207 help
1208 This option enables the workaround for the 743622 Cortex-A9
1209 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1210 optimisation in the Cortex-A9 Store Buffer may lead to data
1211 corruption. This workaround sets a specific bit in the diagnostic
1212 register of the Cortex-A9 which disables the Store Buffer
1213 optimisation, preventing the defect from occurring. This has no
1214 visible impact on the overall performance or power consumption of the
1215 processor.
1216
Will Deacon9a27c272011-02-18 16:36:35 +01001217config ARM_ERRATA_751472
1218 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1219 depends on CPU_V7 && SMP
1220 help
1221 This option enables the workaround for the 751472 Cortex-A9 (prior
1222 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1223 completion of a following broadcasted operation if the second
1224 operation is received by a CPU before the ICIALLUIS has completed,
1225 potentially leading to corrupted entries in the cache or TLB.
1226
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001227config ARM_ERRATA_753970
1228 bool "ARM errata: cache sync operation may be faulty"
1229 depends on CACHE_PL310
1230 help
1231 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1232
1233 Under some condition the effect of cache sync operation on
1234 the store buffer still remains when the operation completes.
1235 This means that the store buffer is always asked to drain and
1236 this prevents it from merging any further writes. The workaround
1237 is to replace the normal offset of cache sync operation (0x730)
1238 by another offset targeting an unmapped PL310 register 0x740.
1239 This has the same effect as the cache sync operation: store buffer
1240 drain and waiting for all buffers empty.
1241
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001242config ARM_ERRATA_754322
1243 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1244 depends on CPU_V7
1245 help
1246 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1247 r3p*) erratum. A speculative memory access may cause a page table walk
1248 which starts prior to an ASID switch but completes afterwards. This
1249 can populate the micro-TLB with a stale entry which may be hit with
1250 the new ASID. This workaround places two dsb instructions in the mm
1251 switching code so that no page table walks can cross the ASID switch.
1252
Will Deacon5dab26a2011-03-04 12:38:54 +01001253config ARM_ERRATA_754327
1254 bool "ARM errata: no automatic Store Buffer drain"
1255 depends on CPU_V7 && SMP
1256 help
1257 This option enables the workaround for the 754327 Cortex-A9 (prior to
1258 r2p0) erratum. The Store Buffer does not have any automatic draining
1259 mechanism and therefore a livelock may occur if an external agent
1260 continuously polls a memory location waiting to observe an update.
1261 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1262 written polling loops from denying visibility of updates to memory.
1263
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001264config PL310_ERRATA_727915
1265 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1266 depends on CACHE_L2X0
1267 help
1268 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1269 operation (offset 0x7FC). This operation runs in background so that
1270 PL310 can handle normal accesses while it is in progress. Under very
1271 rare circumstances, due to this erratum, write data can be lost when
1272 PL310 treats a cacheable write transaction during a Clean &
1273 Invalidate by Way operation.
1274
1275config KSAPI
1276 tristate "KSAPI support (EXPERIMENTAL)"
1277 depends on ARCH_MSM_SCORPION || ARCH_MSM_KRAIT
1278 default n
1279 help
1280 KSAPI: Performance monitoring tool for linux.
1281 KSAPI records performance statistics for Snapdragon linux platform.
1282 It uses the /proc FS as a means to exchange configuration data and
1283 counter statistics. It can monitor the counter statistics for
1284 Scorpion processor supported hardware performance counters on a per
1285 thread basis or AXI counters on an overall system basis.
1286
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287endmenu
1288
1289source "arch/arm/common/Kconfig"
1290
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291menu "Bus support"
1292
1293config ARM_AMBA
1294 bool
1295
1296config ISA
1297 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298 help
1299 Find out whether you have ISA slots on your motherboard. ISA is the
1300 name of a bus system, i.e. the way the CPU talks to the other stuff
1301 inside your box. Other bus systems are PCI, EISA, MicroChannel
1302 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1303 newer boards don't support it. If you have ISA, say Y, otherwise N.
1304
Russell King065909b2006-01-04 15:44:16 +00001305# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306config ISA_DMA
1307 bool
Russell King065909b2006-01-04 15:44:16 +00001308 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309
Russell King065909b2006-01-04 15:44:16 +00001310# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001311config ISA_DMA_API
1312 bool
Al Viro5cae8412005-05-04 05:39:22 +01001313
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001315 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 help
1317 Find out whether you have a PCI motherboard. PCI is the name of a
1318 bus system, i.e. the way the CPU talks to the other stuff inside
1319 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1320 VESA. If you have PCI, say Y, otherwise N.
1321
Anton Vorontsov52882172010-04-19 13:20:49 +01001322config PCI_DOMAINS
1323 bool
1324 depends on PCI
1325
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001326config PCI_NANOENGINE
1327 bool "BSE nanoEngine PCI support"
1328 depends on SA1100_NANOENGINE
1329 help
1330 Enable PCI on the BSE nanoEngine board.
1331
Matthew Wilcox36e23592007-07-10 10:54:40 -06001332config PCI_SYSCALL
1333 def_bool PCI
1334
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335# Select the host bridge type
1336config PCI_HOST_VIA82C505
1337 bool
1338 depends on PCI && ARCH_SHARK
1339 default y
1340
Mike Rapoporta0113a92007-11-25 08:55:34 +01001341config PCI_HOST_ITE8152
1342 bool
1343 depends on PCI && MACH_ARMCORE
1344 default y
1345 select DMABOUNCE
1346
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347source "drivers/pci/Kconfig"
1348
1349source "drivers/pcmcia/Kconfig"
1350
Will Deacon85fd3232011-09-15 11:45:15 +01001351config ARM_ERRATA_764369
1352 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1353 depends on CPU_V7 && SMP
1354 help
1355 This option enables the workaround for erratum 764369
1356 affecting Cortex-A9 MPCore with two or more processors (all
1357 current revisions). Under certain timing circumstances, a data
1358 cache line maintenance operation by MVA targeting an Inner
1359 Shareable memory region may fail to proceed up to either the
1360 Point of Coherency or to the Point of Unification of the
1361 system. This workaround adds a DSB instruction before the
1362 relevant cache maintenance functions and sets a specific bit
1363 in the diagnostic control register of the SCU.
1364
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365endmenu
1366
1367menu "Kernel Features"
1368
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001369source "kernel/time/Kconfig"
1370
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001372 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001373 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001374 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001375 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001376 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001377 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001378 MSM_SMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001379 select USE_GENERIC_SMP_HELPERS
Taniya Das2760d852011-10-12 18:03:15 +05301380 select HAVE_ARM_SCU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381 help
1382 This enables support for systems with more than one CPU. If you have
1383 a system with only one CPU, like most personal computers, say N. If
1384 you have a system with more than one CPU, say Y.
1385
1386 If you say N here, the kernel will run on single and multiprocessor
1387 machines, but will use only one CPU of a multiprocessor machine. If
1388 you say Y here, the kernel will run on many, but not all, single
1389 processor machines. On a single processor machine, the kernel will
1390 run faster if you say N here.
1391
Adrian Bunk03502fa2008-02-03 15:50:21 +02001392 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001394 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395
1396 If you don't know what to do here, say N.
1397
Russell Kingf00ec482010-09-04 10:47:48 +01001398config SMP_ON_UP
1399 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1400 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001401 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001402 default y
1403 help
1404 SMP kernels contain instructions which fail on non-SMP processors.
1405 Enabling this option allows the kernel to modify itself to make
1406 these instructions safe. Disabling it allows about 1K of space
1407 savings.
1408
1409 If you don't know what to do here, say Y.
1410
Russell Kinga8cbcd92009-05-16 11:51:14 +01001411config HAVE_ARM_SCU
1412 bool
1413 depends on SMP
1414 help
1415 This option enables support for the ARM system coherency unit
1416
Marc Zyngierf5b3b2b2011-11-07 14:28:33 -08001417config ARM_ARCH_TIMER
1418 bool "Architected timer support"
1419 select TICK_ONESHOT
1420 help
1421 This option enables support for the ARM architected timer
1422
Russell Kingf32f4ce2009-05-16 12:14:21 +01001423config HAVE_ARM_TWD
1424 bool
1425 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001426 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001427 help
1428 This options enables support for the ARM timer and watchdog unit
1429
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001430choice
1431 prompt "Memory split"
1432 default VMSPLIT_3G
1433 help
1434 Select the desired split between kernel and user memory.
1435
1436 If you are not absolutely sure what you are doing, leave this
1437 option alone!
1438
1439 config VMSPLIT_3G
1440 bool "3G/1G user/kernel split"
1441 config VMSPLIT_2G
1442 bool "2G/2G user/kernel split"
1443 config VMSPLIT_1G
1444 bool "1G/3G user/kernel split"
1445endchoice
1446
1447config PAGE_OFFSET
1448 hex
1449 default 0x40000000 if VMSPLIT_1G
1450 default 0x80000000 if VMSPLIT_2G
1451 default 0xC0000000
1452
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453config NR_CPUS
1454 int "Maximum number of CPUs (2-32)"
1455 range 2 32
1456 depends on SMP
1457 default "4"
1458
Russell Kinga054a812005-11-02 22:24:33 +00001459config HOTPLUG_CPU
1460 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1461 depends on SMP && HOTPLUG && EXPERIMENTAL
1462 help
1463 Say Y here to experiment with turning CPUs off and on. CPUs
1464 can be controlled through /sys/devices/system/cpu.
1465
Russell King37ee16a2005-11-08 19:08:05 +00001466config LOCAL_TIMERS
1467 bool "Use local timer interrupts"
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001468 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1469 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500 || \
1470 MSM_SMP)
Russell King37ee16a2005-11-08 19:08:05 +00001471 default y
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001472 select HAVE_ARM_TWD if (!MSM_SMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001473 help
1474 Enable support for local timers on SMP platforms, rather then the
1475 legacy IPI broadcast method. Local timers allows the system
1476 accounting to be spread across the timer interval, preventing a
1477 "thundering herd" at every timer tick.
1478
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001479source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480
Russell Kingf8065812006-03-02 22:41:59 +00001481config HZ
1482 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001483 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001484 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001485 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001486 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001487 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001488 default 100
1489
Catalin Marinas16c79652009-07-24 12:33:02 +01001490config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001491 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001492 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001493 select AEABI
1494 select ARM_ASM_UNIFIED
1495 help
1496 By enabling this option, the kernel will be compiled in
1497 Thumb-2 mode. A compiler/assembler that understand the unified
1498 ARM-Thumb syntax is needed.
1499
1500 If unsure, say N.
1501
Dave Martin6f685c52011-03-03 11:41:12 +01001502config THUMB2_AVOID_R_ARM_THM_JUMP11
1503 bool "Work around buggy Thumb-2 short branch relocations in gas"
1504 depends on THUMB2_KERNEL && MODULES
1505 default y
1506 help
1507 Various binutils versions can resolve Thumb-2 branches to
1508 locally-defined, preemptible global symbols as short-range "b.n"
1509 branch instructions.
1510
1511 This is a problem, because there's no guarantee the final
1512 destination of the symbol, or any candidate locations for a
1513 trampoline, are within range of the branch. For this reason, the
1514 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1515 relocation in modules at all, and it makes little sense to add
1516 support.
1517
1518 The symptom is that the kernel fails with an "unsupported
1519 relocation" error when loading some modules.
1520
1521 Until fixed tools are available, passing
1522 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1523 code which hits this problem, at the cost of a bit of extra runtime
1524 stack usage in some cases.
1525
1526 The problem is described in more detail at:
1527 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1528
1529 Only Thumb-2 kernels are affected.
1530
1531 Unless you are sure your tools don't have this problem, say Y.
1532
Catalin Marinas0becb082009-07-24 12:32:53 +01001533config ARM_ASM_UNIFIED
1534 bool
1535
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001536config AEABI
1537 bool "Use the ARM EABI to compile the kernel"
1538 help
1539 This option allows for the kernel to be compiled using the latest
1540 ARM ABI (aka EABI). This is only useful if you are using a user
1541 space environment that is also compiled with EABI.
1542
1543 Since there are major incompatibilities between the legacy ABI and
1544 EABI, especially with regard to structure member alignment, this
1545 option also changes the kernel syscall calling convention to
1546 disambiguate both ABIs and allow for backward compatibility support
1547 (selected with CONFIG_OABI_COMPAT).
1548
1549 To use this you need GCC version 4.0.0 or later.
1550
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001551config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001552 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001553 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001554 default y
1555 help
1556 This option preserves the old syscall interface along with the
1557 new (ARM EABI) one. It also provides a compatibility layer to
1558 intercept syscalls that have structure arguments which layout
1559 in memory differs between the legacy ABI and the new ARM EABI
1560 (only for non "thumb" binaries). This option adds a tiny
1561 overhead to all syscalls and produces a slightly larger kernel.
1562 If you know you'll be using only pure EABI user space then you
1563 can say N here. If this option is not selected and you attempt
1564 to execute a legacy ABI binary then the result will be
1565 UNPREDICTABLE (in fact it can be predicted that it won't work
1566 at all). If in doubt say Y.
1567
Mel Gormaneb335752009-05-13 17:34:48 +01001568config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001569 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001570
Russell King05944d72006-11-30 20:43:51 +00001571config ARCH_SPARSEMEM_ENABLE
1572 bool
1573
Russell King07a2f732008-10-01 21:39:58 +01001574config ARCH_SPARSEMEM_DEFAULT
1575 def_bool ARCH_SPARSEMEM_ENABLE
1576
Russell King05944d72006-11-30 20:43:51 +00001577config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001578 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001579
Will Deacon7b7bf492011-05-19 13:21:14 +01001580config HAVE_ARCH_PFN_VALID
1581 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1582
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001583config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001584 bool "High Memory Support"
1585 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001586 help
1587 The address space of ARM processors is only 4 Gigabytes large
1588 and it has to accommodate user address space, kernel address
1589 space as well as some memory mapped IO. That means that, if you
1590 have a large amount of physical memory and/or IO, not all of the
1591 memory can be "permanently mapped" by the kernel. The physical
1592 memory that is not permanently mapped is called "high memory".
1593
1594 Depending on the selected kernel/user memory split, minimum
1595 vmalloc space and actual amount of RAM, you may not need this
1596 option which should result in a slightly faster kernel.
1597
1598 If unsure, say n.
1599
Russell King65cec8e2009-08-17 20:02:06 +01001600config HIGHPTE
1601 bool "Allocate 2nd-level pagetables from highmem"
1602 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001603
Jamie Iles1b8873a2010-02-02 20:25:44 +01001604config HW_PERF_EVENTS
1605 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001606 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001607 default y
1608 help
1609 Enable hardware performance counter support for perf events. If
1610 disabled, perf events will use software events only.
1611
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001612config VMALLOC_RESERVE
1613 hex "Reserved vmalloc space"
1614 default 0x08000000
1615 depends on MMU
1616 help
1617 Reserved vmalloc space if not specified on the kernel commandline.
1618
Dave Hansen3f22ab22005-06-23 00:07:43 -07001619source "mm/Kconfig"
1620
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001621config ARCH_MEMORY_PROBE
1622 def_bool n
1623 depends on MEMORY_HOTPLUG
1624
1625config ARCH_MEMORY_REMOVE
1626 def_bool n
1627 depends on MEMORY_HOTPLUG
1628
Larry Basseld4e809e2011-09-08 10:46:49 -07001629config ARCH_POPULATES_NODE_MAP
1630 def_bool n
1631 depends on MEMORY_HOTPLUG
1632
Larry Bassel6eae21a2011-10-14 10:49:33 -07001633config FIX_MOVABLE_ZONE
1634 def_bool n
1635 depends on MEMORY_HOTPLUG
1636
Larry Bassel150d5032011-09-20 14:32:13 -07001637config DONT_MAP_HOLE_AFTER_MEMBANK0
1638 def_bool n
1639 depends on SPARSEMEM
1640
Bryan Huntsman45f580d2011-11-23 12:31:46 -08001641config ARCH_ENABLE_MEMORY_HOTPLUG
1642 def_bool n
1643
1644config ARCH_ENABLE_MEMORY_HOTREMOVE
1645 def_bool n
1646
Magnus Dammc1b2d972010-07-05 10:00:11 +01001647config FORCE_MAX_ZONEORDER
1648 int "Maximum zone order" if ARCH_SHMOBILE
1649 range 11 64 if ARCH_SHMOBILE
1650 default "9" if SA1111
1651 default "11"
1652 help
1653 The kernel memory allocator divides physically contiguous memory
1654 blocks into "zones", where each zone is a power of two number of
1655 pages. This option selects the largest power of two that the kernel
1656 keeps in the memory allocator. If you need to allocate very large
1657 blocks of physically contiguous memory, then you may need to
1658 increase this value.
1659
1660 This config option is actually maximum order plus one. For example,
1661 a value of 11 means that the largest free memory block is 2^10 pages.
1662
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663config LEDS
1664 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001665 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001666 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001667 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1668 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001669 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001670 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001671 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672 help
1673 If you say Y here, the LEDs on your machine will be used
1674 to provide useful information about your current system status.
1675
1676 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1677 be able to select which LEDs are active using the options below. If
1678 you are compiling a kernel for the EBSA-110 or the LART however, the
1679 red LED will simply flash regularly to indicate that the system is
1680 still functional. It is safe to say Y here if you have a CATS
1681 system, but the driver will do nothing.
1682
1683config LEDS_TIMER
1684 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001685 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1686 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001688 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689 default y if ARCH_EBSA110
1690 help
1691 If you say Y here, one of the system LEDs (the green one on the
1692 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1693 will flash regularly to indicate that the system is still
1694 operational. This is mainly useful to kernel hackers who are
1695 debugging unstable kernels.
1696
1697 The LART uses the same LED for both Timer LED and CPU usage LED
1698 functions. You may choose to use both, but the Timer LED function
1699 will overrule the CPU usage LED.
1700
1701config LEDS_CPU
1702 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001703 !ARCH_OMAP) \
1704 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1705 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706 depends on LEDS
1707 help
1708 If you say Y here, the red LED will be used to give a good real
1709 time indication of CPU usage, by lighting whenever the idle task
1710 is not currently executing.
1711
1712 The LART uses the same LED for both Timer LED and CPU usage LED
1713 functions. You may choose to use both, but the Timer LED function
1714 will overrule the CPU usage LED.
1715
1716config ALIGNMENT_TRAP
1717 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001718 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001720 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001722 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1724 address divisible by 4. On 32-bit ARM processors, these non-aligned
1725 fetch/store instructions will be emulated in software if you say
1726 here, which has a severe performance impact. This is necessary for
1727 correct operation of some network protocols. With an IP-only
1728 configuration it is safe to say N, otherwise say Y.
1729
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001730config UACCESS_WITH_MEMCPY
1731 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1732 depends on MMU && EXPERIMENTAL
1733 default y if CPU_FEROCEON
1734 help
1735 Implement faster copy_to_user and clear_user methods for CPU
1736 cores where a 8-word STM instruction give significantly higher
1737 memory write throughput than a sequence of individual 32bit stores.
1738
1739 A possible side effect is a slight increase in scheduling latency
1740 between threads sharing the same address space if they invoke
1741 such copy operations with large buffers.
1742
1743 However, if the CPU data cache is using a write-allocate mode,
1744 this option is unlikely to provide any performance gain.
1745
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001746config SECCOMP
1747 bool
1748 prompt "Enable seccomp to safely compute untrusted bytecode"
1749 ---help---
1750 This kernel feature is useful for number crunching applications
1751 that may need to compute untrusted bytecode during their
1752 execution. By using pipes or other transports made available to
1753 the process as file descriptors supporting the read/write
1754 syscalls, it's possible to isolate those applications in
1755 their own address space using seccomp. Once seccomp is
1756 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1757 and the task is only allowed to execute a few safe syscalls
1758 defined by each seccomp mode.
1759
Nicolas Pitrec743f382010-05-24 23:55:42 -04001760config CC_STACKPROTECTOR
1761 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001762 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001763 help
1764 This option turns on the -fstack-protector GCC feature. This
1765 feature puts, at the beginning of functions, a canary value on
1766 the stack just before the return address, and validates
1767 the value just before actually returning. Stack based buffer
1768 overflows (that need to overwrite this return address) now also
1769 overwrite the canary, which gets detected and the attack is then
1770 neutralized via a kernel panic.
1771 This feature requires gcc version 4.2 or above.
1772
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001773config DEPRECATED_PARAM_STRUCT
1774 bool "Provide old way to pass kernel parameters"
1775 help
1776 This was deprecated in 2001 and announced to live on for 5 years.
1777 Some old boot loaders still use this way.
1778
Dima Zavin76594492011-08-23 15:56:50 -07001779config ARM_FLUSH_CONSOLE_ON_RESTART
1780 bool "Force flush the console on restart"
1781 help
1782 If the console is locked while the system is rebooted, the messages
1783 in the temporary logbuffer would not have propogated to all the
1784 console drivers. This option forces the console lock to be
1785 released if it failed to be acquired, which will cause all the
1786 pending messages to be flushed.
1787
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001788config CP_ACCESS
1789 tristate "CP register access tool"
1790 default m
1791 help
1792 Provide support for Coprocessor register access using /sys
1793 interface. Read and write to CP registers from userspace
1794 through sysfs interface. A sys file (cp_rw) will be created under
1795 /sys/devices/system/cpaccess/cpaccess0.
1796
1797 If unsure, say N.
1798
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799endmenu
1800
1801menu "Boot options"
1802
Grant Likely9eb8f672011-04-28 14:27:20 -06001803config USE_OF
1804 bool "Flattened Device Tree support"
1805 select OF
1806 select OF_EARLY_FLATTREE
Grant Likely6469dfb2011-07-26 03:19:06 -06001807 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001808 help
1809 Include support for flattened device tree machine descriptions.
1810
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811# Compressed boot loader in ROM. Yes, we really want to ask about
1812# TEXT and BSS so we preserve their values in the config files.
1813config ZBOOT_ROM_TEXT
1814 hex "Compressed ROM boot loader base address"
1815 default "0"
1816 help
1817 The physical address at which the ROM-able zImage is to be
1818 placed in the target. Platforms which normally make use of
1819 ROM-able zImage formats normally set this to a suitable
1820 value in their defconfig file.
1821
1822 If ZBOOT_ROM is not enabled, this has no effect.
1823
1824config ZBOOT_ROM_BSS
1825 hex "Compressed ROM boot loader BSS address"
1826 default "0"
1827 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001828 The base address of an area of read/write memory in the target
1829 for the ROM-able zImage which must be available while the
1830 decompressor is running. It must be large enough to hold the
1831 entire decompressed kernel plus an additional 128 KiB.
1832 Platforms which normally make use of ROM-able zImage formats
1833 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834
1835 If ZBOOT_ROM is not enabled, this has no effect.
1836
1837config ZBOOT_ROM
1838 bool "Compressed boot loader in ROM/flash"
1839 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1840 help
1841 Say Y here if you intend to execute your compressed kernel image
1842 (zImage) directly from ROM or flash. If unsure, say N.
1843
Simon Hormanf45b1142011-01-11 04:01:08 +01001844config ZBOOT_ROM_MMCIF
1845 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1846 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1847 help
1848 Say Y here to include experimental MMCIF loading code in the
1849 ROM-able zImage. With this enabled it is possible to write the
1850 the ROM-able zImage kernel image to an MMC card and boot the
1851 kernel straight from the reset vector. At reset the processor
1852 Mask ROM will load the first part of the the ROM-able zImage
1853 which in turn loads the rest the kernel image to RAM using the
1854 MMCIF hardware block.
1855
John Bonesioede5d5d2011-05-27 18:45:50 -04001856config ARM_APPENDED_DTB
1857 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1858 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1859 help
1860 With this option, the boot code will look for a device tree binary
1861 (DTB) appended to zImage
1862 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1863
1864 This is meant as a backward compatibility convenience for those
1865 systems with a bootloader that can't be upgraded to accommodate
1866 the documented boot protocol using a device tree.
1867
1868 Beware that there is very little in terms of protection against
1869 this option being confused by leftover garbage in memory that might
1870 look like a DTB header after a reboot if no actual DTB is appended
1871 to zImage. Do not leave this option active in a production kernel
1872 if you don't intend to always append a DTB. Proper passing of the
1873 location into r2 of a bootloader provided DTB is always preferable
1874 to this option.
1875
Nicolas Pitrebbc98d12011-09-13 22:37:07 -04001876config ARM_ATAG_DTB_COMPAT
1877 bool "Supplement the appended DTB with traditional ATAG information"
1878 depends on ARM_APPENDED_DTB
1879 help
1880 Some old bootloaders can't be updated to a DTB capable one, yet
1881 they provide ATAGs with memory configuration, the ramdisk address,
1882 the kernel cmdline string, etc. Such information is dynamically
1883 provided by the bootloader and can't always be stored in a static
1884 DTB. To allow a device tree enabled kernel to be used with such
1885 bootloaders, this option allows zImage to extract the information
1886 from the ATAG list and store it at run time into the appended DTB.
1887
Linus Torvalds1da177e2005-04-16 15:20:36 -07001888config CMDLINE
1889 string "Default kernel command string"
1890 default ""
1891 help
1892 On some architectures (EBSA110 and CATS), there is currently no way
1893 for the boot loader to pass arguments to the kernel. For these
1894 architectures, you should supply some command-line options at build
1895 time by entering them here. As a minimum, you should specify the
1896 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1897
Victor Boivie4394c122011-05-04 17:07:55 +01001898choice
1899 prompt "Kernel command line type" if CMDLINE != ""
1900 default CMDLINE_FROM_BOOTLOADER
1901
1902config CMDLINE_FROM_BOOTLOADER
1903 bool "Use bootloader kernel arguments if available"
1904 help
1905 Uses the command-line options passed by the boot loader. If
1906 the boot loader doesn't provide any, the default kernel command
1907 string provided in CMDLINE will be used.
1908
1909config CMDLINE_EXTEND
1910 bool "Extend bootloader kernel arguments"
1911 help
1912 The command-line arguments provided by the boot loader will be
1913 appended to the default kernel command string.
1914
Alexander Holler92d20402010-02-16 19:04:53 +01001915config CMDLINE_FORCE
1916 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001917 help
1918 Always use the default kernel command string, even if the boot
1919 loader passes other arguments to the kernel.
1920 This is useful if you cannot or don't want to change the
1921 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001922endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001923
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924config XIP_KERNEL
1925 bool "Kernel Execute-In-Place from ROM"
1926 depends on !ZBOOT_ROM
1927 help
1928 Execute-In-Place allows the kernel to run from non-volatile storage
1929 directly addressable by the CPU, such as NOR flash. This saves RAM
1930 space since the text section of the kernel is not loaded from flash
1931 to RAM. Read-write sections, such as the data section and stack,
1932 are still copied to RAM. The XIP kernel is not compressed since
1933 it has to run directly from flash, so it will take more space to
1934 store it. The flash address used to link the kernel object files,
1935 and for storing it, is configuration dependent. Therefore, if you
1936 say Y here, you must know the proper physical address where to
1937 store the kernel image depending on your own flash memory usage.
1938
1939 Also note that the make target becomes "make xipImage" rather than
1940 "make zImage" or "make Image". The final kernel binary to put in
1941 ROM memory will be arch/arm/boot/xipImage.
1942
1943 If unsure, say N.
1944
1945config XIP_PHYS_ADDR
1946 hex "XIP Kernel Physical Location"
1947 depends on XIP_KERNEL
1948 default "0x00080000"
1949 help
1950 This is the physical address in your flash memory the kernel will
1951 be linked for and stored to. This address is dependent on your
1952 own flash usage.
1953
Richard Purdiec587e4a2007-02-06 21:29:00 +01001954config KEXEC
1955 bool "Kexec system call (EXPERIMENTAL)"
1956 depends on EXPERIMENTAL
1957 help
1958 kexec is a system call that implements the ability to shutdown your
1959 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001960 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001961 you can start any kernel with it, not just Linux.
1962
1963 It is an ongoing process to be certain the hardware in a machine
1964 is properly shutdown, so do not be surprised if this code does not
1965 initially work for you. It may help to enable device hotplugging
1966 support.
1967
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001968config ATAGS_PROC
1969 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001970 depends on KEXEC
1971 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001972 help
1973 Should the atags used to boot the kernel be exported in an "atags"
1974 file in procfs. Useful with kexec.
1975
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001976config CRASH_DUMP
1977 bool "Build kdump crash kernel (EXPERIMENTAL)"
1978 depends on EXPERIMENTAL
1979 help
1980 Generate crash dump after being started by kexec. This should
1981 be normally only set in special crash dump kernels which are
1982 loaded in the main kernel with kexec-tools into a specially
1983 reserved region and then later executed after a crash by
1984 kdump/kexec. The crash dump kernel must be compiled to a
1985 memory address not used by the main kernel
1986
1987 For more details see Documentation/kdump/kdump.txt
1988
Eric Miaoe69edc792010-07-05 15:56:50 +02001989config AUTO_ZRELADDR
1990 bool "Auto calculation of the decompressed kernel image address"
1991 depends on !ZBOOT_ROM && !ARCH_U300
1992 help
1993 ZRELADDR is the physical address where the decompressed kernel
1994 image will be placed. If AUTO_ZRELADDR is selected, the address
1995 will be determined at run-time by masking the current IP with
1996 0xf8000000. This assumes the zImage being placed in the first 128MB
1997 from start of memory.
1998
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999endmenu
2000
Russell Kingac9d7ef2008-08-18 17:26:00 +01002001menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002
Ben Dooks89c52ed2009-07-30 23:23:24 +01002003if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004
2005source "drivers/cpufreq/Kconfig"
2006
Yong Shen64f102b2010-10-21 21:18:59 +08002007config CPU_FREQ_IMX
2008 tristate "CPUfreq driver for i.MX CPUs"
2009 depends on ARCH_MXC && CPU_FREQ
2010 help
2011 This enables the CPUfreq driver for i.MX CPUs.
2012
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013config CPU_FREQ_SA1100
2014 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015
2016config CPU_FREQ_SA1110
2017 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002018
2019config CPU_FREQ_INTEGRATOR
2020 tristate "CPUfreq driver for ARM Integrator CPUs"
2021 depends on ARCH_INTEGRATOR && CPU_FREQ
2022 default y
2023 help
2024 This enables the CPUfreq driver for ARM Integrator CPUs.
2025
2026 For details, take a look at <file:Documentation/cpu-freq>.
2027
2028 If in doubt, say Y.
2029
Russell King9e2697f2007-12-14 13:30:14 +00002030config CPU_FREQ_PXA
2031 bool
2032 depends on CPU_FREQ && ARCH_PXA && PXA25x
2033 default y
2034 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2035
Mark Brownb3748dd2009-06-15 11:23:20 +01002036config CPU_FREQ_S3C64XX
2037 bool "CPUfreq support for Samsung S3C64XX CPUs"
2038 depends on CPU_FREQ && CPU_S3C6410
2039
Ben Dooks9d56c022009-07-30 23:23:25 +01002040config CPU_FREQ_S3C
2041 bool
2042 help
2043 Internal configuration node for common cpufreq on Samsung SoC
2044
2045config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002046 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002047 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2048 select CPU_FREQ_S3C
2049 help
2050 This enables the CPUfreq driver for the Samsung S3C24XX family
2051 of CPUs.
2052
2053 For details, take a look at <file:Documentation/cpu-freq>.
2054
2055 If in doubt, say N.
2056
2057config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002058 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002059 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2060 help
2061 Compile in support for changing the PLL frequency from the
2062 S3C24XX series CPUfreq driver. The PLL takes time to settle
2063 after a frequency change, so by default it is not enabled.
2064
2065 This also means that the PLL tables for the selected CPU(s) will
2066 be built which may increase the size of the kernel image.
2067
2068config CPU_FREQ_S3C24XX_DEBUG
2069 bool "Debug CPUfreq Samsung driver core"
2070 depends on CPU_FREQ_S3C24XX
2071 help
2072 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2073
2074config CPU_FREQ_S3C24XX_IODEBUG
2075 bool "Debug CPUfreq Samsung driver IO timing"
2076 depends on CPU_FREQ_S3C24XX
2077 help
2078 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2079
Ben Dookse6d197a2009-07-30 23:23:42 +01002080config CPU_FREQ_S3C24XX_DEBUGFS
2081 bool "Export debugfs for CPUFreq"
2082 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2083 help
2084 Export status information via debugfs.
2085
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086endif
2087
Russell Kingac9d7ef2008-08-18 17:26:00 +01002088source "drivers/cpuidle/Kconfig"
2089
2090endmenu
2091
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07002092config CPU_FREQ_MSM
2093 bool
2094 depends on CPU_FREQ && ARCH_MSM
2095 default y
2096 help
2097 This enables the CPUFreq driver for Qualcomm CPUs.
2098 If in doubt, say Y.
2099
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100menu "Floating point emulation"
2101
2102comment "At least one emulation must be selected"
2103
2104config FPE_NWFPE
2105 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002106 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107 ---help---
2108 Say Y to include the NWFPE floating point emulator in the kernel.
2109 This is necessary to run most binaries. Linux does not currently
2110 support floating point hardware so you need to say Y here even if
2111 your machine has an FPA or floating point co-processor podule.
2112
2113 You may say N here if you are going to load the Acorn FPEmulator
2114 early in the bootup.
2115
2116config FPE_NWFPE_XP
2117 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002118 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119 help
2120 Say Y to include 80-bit support in the kernel floating-point
2121 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2122 Note that gcc does not generate 80-bit operations by default,
2123 so in most cases this option only enlarges the size of the
2124 floating point emulator without any good reason.
2125
2126 You almost surely want to say N here.
2127
2128config FPE_FASTFPE
2129 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002130 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 ---help---
2132 Say Y here to include the FAST floating point emulator in the kernel.
2133 This is an experimental much faster emulator which now also has full
2134 precision for the mantissa. It does not support any exceptions.
2135 It is very simple, and approximately 3-6 times faster than NWFPE.
2136
2137 It should be sufficient for most programs. It may be not suitable
2138 for scientific calculations, but you have to check this for yourself.
2139 If you do not feel you need a faster FP emulation you should better
2140 choose NWFPE.
2141
2142config VFP
2143 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002144 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145 help
2146 Say Y to include VFP support code in the kernel. This is needed
2147 if your hardware includes a VFP unit.
2148
2149 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2150 release notes and additional status information.
2151
2152 Say N if your target does not have VFP hardware.
2153
Catalin Marinas25ebee02007-09-25 15:22:24 +01002154config VFPv3
2155 bool
2156 depends on VFP
2157 default y if CPU_V7
2158
Catalin Marinasb5872db2008-01-10 19:16:17 +01002159config NEON
2160 bool "Advanced SIMD (NEON) Extension support"
2161 depends on VFPv3 && CPU_V7
2162 help
2163 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2164 Extension.
2165
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166endmenu
2167
2168menu "Userspace binary formats"
2169
2170source "fs/Kconfig.binfmt"
2171
2172config ARTHUR
2173 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002174 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 help
2176 Say Y here to include the kernel code necessary if you want to run
2177 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2178 experimental; if this sounds frightening, say N and sleep in peace.
2179 You can also say M here to compile this support as a module (which
2180 will be called arthur).
2181
2182endmenu
2183
2184menu "Power management options"
2185
Russell Kingeceab4a2005-11-15 11:31:41 +00002186source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187
Johannes Bergf4cb5702007-12-08 02:14:00 +01002188config ARCH_SUSPEND_POSSIBLE
Maheshkumar Sivasubramanian74b68802011-09-15 09:27:03 -06002189 depends on !ARCH_S5P64X0 && !ARCH_S5PC100 && !ARCH_FSM9XXX
Russell King6a786182011-04-02 10:15:28 +01002190 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2191 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002192 def_bool y
2193
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194endmenu
2195
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002196source "net/Kconfig"
2197
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002198source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199
2200source "fs/Kconfig"
2201
Linus Torvalds1da177e2005-04-16 15:20:36 -07002202source "arch/arm/Kconfig.debug"
2203
2204source "security/Kconfig"
2205
2206source "crypto/Kconfig"
2207
2208source "lib/Kconfig"