blob: 308f984e6f41ab88cc18f4a9130b191ad691bdb4 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
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
Jeff Ohlstein8a9e3932012-03-07 19:24:13 -0800134 default y if !ARM_TICKET_LOCKS
Nick Piggin95c354f2008-01-30 13:31:20 +0100135 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
Stephen Boyd3bbf3462012-01-12 00:19:23 -0800648 select HAVE_CLK_PREPARE
Eric Miao49cbe782009-01-20 14:15:18 +0800649 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800650 Support for Qualcomm MSM/QSD based systems. This runs on the
651 apps processor of the MSM/QSD and depends on a shared memory
652 interface to the modem processor which runs the baseband
653 stack and controls some vital subsystems
654 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800655
Magnus Dammc793c1b2010-02-05 11:14:49 +0000656config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900657 bool "Renesas SH-Mobile / R-Mobile"
658 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900659 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900660 select GENERIC_CLOCKEVENTS
661 select NO_IOPORT
662 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000663 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000664 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900665 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config ARCH_RPC
668 bool "RiscPC"
669 select ARCH_ACORN
670 select FIQ
671 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100672 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100673 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000674 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000675 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100676 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000677 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 On the Acorn Risc-PC, Linux can support the internal IDE disk and
680 CD-ROM interface, serial and parallel port, and the floppy drive.
681
682config ARCH_SA1100
683 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100684 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000685 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100686 select ISA
Russell King05944d72006-11-30 20:43:51 +0000687 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500688 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100689 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000690 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100691 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700692 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000693 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100694 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700695 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000696 help
697 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698
699config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900700 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800701 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100702 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700703 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000704 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900705 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 help
707 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
708 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000709 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710
Ben Dooks63b1f512010-04-30 16:32:26 +0900711 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300712 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900713 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
714
Ben Dooksa08ab632008-10-21 14:06:39 +0100715config ARCH_S3C64XX
716 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000717 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900718 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900719 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100720 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900721 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000722 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100723 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900724 select ARCH_REQUIRE_GPIOLIB
725 select SAMSUNG_CLKSRC
726 select SAMSUNG_IRQ_VIC_TIMER
727 select SAMSUNG_IRQ_UART
728 select S3C_GPIO_TRACK
729 select S3C_GPIO_PULL_UPDOWN
730 select S3C_GPIO_CFG_S3C24XX
731 select S3C_GPIO_CFG_S3C64XX
732 select S3C_DEV_NAND
733 select USB_ARCH_HAS_OHCI
734 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900735 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100737 help
738 Samsung S3C64XX series based systems
739
Kukjin Kim49b7a492010-09-07 15:47:18 +0900740config ARCH_S5P64X0
741 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900742 select CPU_V6
743 select GENERIC_GPIO
744 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900745 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900746 select GENERIC_CLOCKEVENTS
747 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900748 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900749 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900750 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900751 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
752 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900753
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200754config ARCH_S5PC100
755 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900756 select GENERIC_GPIO
757 select HAVE_CLK
758 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100759 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900760 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900761 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900762 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900763 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900764 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200765 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900766
Kukjin Kim170f4e42010-02-24 16:40:44 +0900767config ARCH_S5PV210
768 bool "Samsung S5PV210/S5PC110"
769 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900770 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900771 select GENERIC_GPIO
772 select HAVE_CLK
773 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900774 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900775 select GENERIC_CLOCKEVENTS
776 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900777 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900778 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900779 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900780 help
781 Samsung S5PV210/S5PC110 series based systems
782
Kukjin Kim10606aa2011-02-14 15:05:27 +0900783config ARCH_EXYNOS4
784 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900785 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900786 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900787 select GENERIC_GPIO
788 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900789 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900790 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900791 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900792 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900793 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900794 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900795 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900796
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797config ARCH_SHARK
798 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000799 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100800 select ISA
801 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100802 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100803 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000804 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000805 help
806 Support for the StrongARM based Digital DNARD machine, also known
807 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808
Hans J. Koch83ef3332010-09-17 18:13:56 +0200809config ARCH_TCC_926
810 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100811 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200812 select CPU_ARM926T
813 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100814 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200815 select GENERIC_CLOCKEVENTS
816 help
817 Support for Telechips TCC ARM926-based systems.
818
Linus Walleijd98aac72009-04-27 10:21:46 +0100819config ARCH_U300
820 bool "ST-Ericsson U300 Series"
821 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100822 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100823 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000824 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100825 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100826 select ARM_AMBA
827 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100828 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100829 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100830 select GENERIC_GPIO
831 help
832 Support for ST-Ericsson U300 series mobile platforms.
833
Russell Kingccf50e22010-03-15 19:03:06 +0000834config ARCH_U8500
835 bool "ST-Ericsson U8500 Series"
836 select CPU_V7
837 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000838 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100839 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100840 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100841 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000842 help
843 Support for ST-Ericsson's Ux500 architecture
844
845config ARCH_NOMADIK
846 bool "STMicroelectronics Nomadik"
847 select ARM_AMBA
848 select ARM_VIC
849 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100850 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000851 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000852 select ARCH_REQUIRE_GPIOLIB
853 help
854 Support for the Nomadik platform by ST-Ericsson
855
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100856config ARCH_DAVINCI
857 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100858 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700859 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100860 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700861 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100862 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700863 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100864 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530865 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100866 help
867 Support for TI's DaVinci platform.
868
Russell King3b938be2007-05-12 11:25:44 +0100869config ARCH_OMAP
870 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700871 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700872 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100873 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700874 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000875 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800876 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100877 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200878 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100879
viresh kumarcee37e52010-04-01 12:31:05 +0100880config PLAT_SPEAR
881 bool "ST SPEAr"
882 select ARM_AMBA
883 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100884 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100885 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100886 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100887 select HAVE_CLK
888 help
889 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
890
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100891config ARCH_VT8500
892 bool "VIA/WonderMedia 85xx"
893 select CPU_ARM926T
894 select GENERIC_GPIO
895 select ARCH_HAS_CPUFREQ
896 select GENERIC_CLOCKEVENTS
897 select ARCH_REQUIRE_GPIOLIB
898 select HAVE_PWM
899 help
900 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901endchoice
902
Russell Kingccf50e22010-03-15 19:03:06 +0000903#
904# This is sorted alphabetically by mach-* pathname. However, plat-*
905# Kconfigs may be included either alphabetically (according to the
906# plat- suffix) or along side the corresponding mach-* source.
907#
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-at91/Kconfig"
909
910source "arch/arm/mach-bcmring/Kconfig"
911
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912source "arch/arm/mach-clps711x/Kconfig"
913
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300914source "arch/arm/mach-cns3xxx/Kconfig"
915
Russell King95b8f202010-01-14 11:43:54 +0000916source "arch/arm/mach-davinci/Kconfig"
917
918source "arch/arm/mach-dove/Kconfig"
919
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000920source "arch/arm/mach-ep93xx/Kconfig"
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922source "arch/arm/mach-footbridge/Kconfig"
923
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200924source "arch/arm/mach-gemini/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-h720x/Kconfig"
927
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928source "arch/arm/mach-integrator/Kconfig"
929
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100930source "arch/arm/mach-iop32x/Kconfig"
931
932source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
Dan Williams285f5fa2006-12-07 02:59:39 +0100934source "arch/arm/mach-iop13xx/Kconfig"
935
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936source "arch/arm/mach-ixp4xx/Kconfig"
937
938source "arch/arm/mach-ixp2000/Kconfig"
939
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100940source "arch/arm/mach-ixp23xx/Kconfig"
941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-kirkwood/Kconfig"
943
944source "arch/arm/mach-ks8695/Kconfig"
945
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200946source "arch/arm/mach-loki/Kconfig"
947
Kevin Wells40805942010-07-27 08:49:04 -0700948source "arch/arm/mach-lpc32xx/Kconfig"
949
Russell King95b8f202010-01-14 11:43:54 +0000950source "arch/arm/mach-msm/Kconfig"
951
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200952source "arch/arm/mach-mv78xx0/Kconfig"
953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800956source "arch/arm/mach-mxs/Kconfig"
957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-nomadik/Kconfig"
961source "arch/arm/plat-nomadik/Kconfig"
962
Russell Kingd91a8912010-02-04 18:13:17 +0000963source "arch/arm/mach-nuc93x/Kconfig"
964
Tony Lindgrend48af152005-07-10 19:58:17 +0100965source "arch/arm/plat-omap/Kconfig"
966
967source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
Tony Lindgren1dbae812005-11-10 14:26:51 +0000969source "arch/arm/mach-omap2/Kconfig"
970
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400971source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400972
Russell King95b8f202010-01-14 11:43:54 +0000973source "arch/arm/mach-pxa/Kconfig"
974source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975
Russell King95b8f202010-01-14 11:43:54 +0000976source "arch/arm/mach-mmp/Kconfig"
977
978source "arch/arm/mach-realview/Kconfig"
979
980source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300981
Ben Dookscf383672009-11-10 00:14:58 +0000982source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100983source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900984source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100985
viresh kumarcee37e52010-04-01 12:31:05 +0100986source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100987
Hans J. Koch83ef3332010-09-17 18:13:56 +0200988source "arch/arm/plat-tcc/Kconfig"
989
Ben Dooksa21765a2007-02-11 18:31:01 +0100990if ARCH_S3C2410
991source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100993source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900994source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100995source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100996source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100997endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998
Ben Dooksa08ab632008-10-21 14:06:39 +0100999if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001000source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001001endif
1002
Kukjin Kim49b7a492010-09-07 15:47:18 +09001003source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001004
Byungho Min5a7652f2009-06-23 21:39:42 +09001005source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001006
Kukjin Kim170f4e42010-02-24 16:40:44 +09001007source "arch/arm/mach-s5pv210/Kconfig"
1008
Kukjin Kim10606aa2011-02-14 15:05:27 +09001009source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001010
Russell King882d01f2010-03-02 23:40:15 +00001011source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
Erik Gillingc5f80062010-01-21 16:53:02 -08001013source "arch/arm/mach-tegra/Kconfig"
1014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
Russell King95b8f202010-01-14 11:43:54 +00001017source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
1019source "arch/arm/mach-versatile/Kconfig"
1020
Russell Kingceade892010-02-11 21:44:53 +00001021source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001022source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001023
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001024source "arch/arm/mach-vt8500/Kconfig"
1025
wanzongshun7ec80dd2008-12-03 03:55:38 +01001026source "arch/arm/mach-w90x900/Kconfig"
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028# Definitions to make life easier
1029config ARCH_ACORN
1030 bool
1031
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001032config PLAT_IOP
1033 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001034 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001035 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001036
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001037config PLAT_ORION
1038 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001039 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001040 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001041 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001042
Eric Miaobd5ce432009-01-20 12:06:01 +08001043config PLAT_PXA
1044 bool
1045
Russell Kingf4b8b312010-01-14 12:48:06 +00001046config PLAT_VERSATILE
1047 bool
1048
Russell Kinge3887712010-01-14 13:30:16 +00001049config ARM_TIMER_SP804
1050 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001051 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001052
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053source arch/arm/mm/Kconfig
1054
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001055config RESERVE_FIRST_PAGE
1056 bool
1057 default n
1058 help
1059 Reserve the first page at PHYS_OFFSET. The first
1060 physical page is used by many platforms for warm
1061 boot operations. Reserve this page so that it is
1062 not allocated by the kernel.
1063
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001064config IWMMXT
1065 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001066 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1067 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001068 help
1069 Enable support for iWMMXt context switching at run time if
1070 running on a CPU that supports it.
1071
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1073config XSCALE_PMU
1074 bool
1075 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1076 default y
1077
Jamie Iles0f4f0672010-02-02 20:23:15 +01001078config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001079 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001080 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001081 default y
1082 bool
1083
eric miao52108642010-12-13 09:42:34 +01001084config MULTI_IRQ_HANDLER
1085 bool
1086 help
1087 Allow each machine to specify it's own IRQ handler at run time.
1088
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001089if !MMU
1090source "arch/arm/Kconfig-nommu"
1091endif
1092
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001093config ARM_ERRATA_411920
1094 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001095 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001096 help
1097 Invalidation of the Instruction Cache operation can
1098 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1099 It does not affect the MPCore. This option enables the ARM Ltd.
1100 recommended workaround.
1101
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001102config ARM_ERRATA_430973
1103 bool "ARM errata: Stale prediction on replaced interworking branch"
1104 depends on CPU_V7
1105 help
1106 This option enables the workaround for the 430973 Cortex-A8
1107 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1108 interworking branch is replaced with another code sequence at the
1109 same virtual address, whether due to self-modifying code or virtual
1110 to physical address re-mapping, Cortex-A8 does not recover from the
1111 stale interworking branch prediction. This results in Cortex-A8
1112 executing the new code sequence in the incorrect ARM or Thumb state.
1113 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1114 and also flushes the branch target cache at every context switch.
1115 Note that setting specific bits in the ACTLR register may not be
1116 available in non-secure mode.
1117
Catalin Marinas855c5512009-04-30 17:06:15 +01001118config ARM_ERRATA_458693
1119 bool "ARM errata: Processor deadlock when a false hazard is created"
1120 depends on CPU_V7
1121 help
1122 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1123 erratum. For very specific sequences of memory operations, it is
1124 possible for a hazard condition intended for a cache line to instead
1125 be incorrectly associated with a different cache line. This false
1126 hazard might then cause a processor deadlock. The workaround enables
1127 the L1 caching of the NEON accesses and disables the PLD instruction
1128 in the ACTLR register. Note that setting specific bits in the ACTLR
1129 register may not be available in non-secure mode.
1130
Catalin Marinas0516e462009-04-30 17:06:20 +01001131config ARM_ERRATA_460075
1132 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1133 depends on CPU_V7
1134 help
1135 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1136 erratum. Any asynchronous access to the L2 cache may encounter a
1137 situation in which recent store transactions to the L2 cache are lost
1138 and overwritten with stale memory contents from external memory. The
1139 workaround disables the write-allocate mode for the L2 cache via the
1140 ACTLR register. Note that setting specific bits in the ACTLR register
1141 may not be available in non-secure mode.
1142
Will Deacon9f050272010-09-14 09:51:43 +01001143config ARM_ERRATA_742230
1144 bool "ARM errata: DMB operation may be faulty"
1145 depends on CPU_V7 && SMP
1146 help
1147 This option enables the workaround for the 742230 Cortex-A9
1148 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1149 between two write operations may not ensure the correct visibility
1150 ordering of the two writes. This workaround sets a specific bit in
1151 the diagnostic register of the Cortex-A9 which causes the DMB
1152 instruction to behave as a DSB, ensuring the correct behaviour of
1153 the two writes.
1154
Will Deacona672e992010-09-14 09:53:02 +01001155config ARM_ERRATA_742231
1156 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1157 depends on CPU_V7 && SMP
1158 help
1159 This option enables the workaround for the 742231 Cortex-A9
1160 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1161 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1162 accessing some data located in the same cache line, may get corrupted
1163 data due to bad handling of the address hazard when the line gets
1164 replaced from one of the CPUs at the same time as another CPU is
1165 accessing it. This workaround sets specific bits in the diagnostic
1166 register of the Cortex-A9 which reduces the linefill issuing
1167 capabilities of the processor.
1168
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001169config PL310_ERRATA_588369
1170 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001171 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001172 help
1173 The PL310 L2 cache controller implements three types of Clean &
1174 Invalidate maintenance operations: by Physical Address
1175 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1176 They are architecturally defined to behave as the execution of a
1177 clean operation followed immediately by an invalidate operation,
1178 both performing to the same memory location. This functionality
1179 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001180 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001181
1182config ARM_ERRATA_720789
1183 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1184 depends on CPU_V7 && SMP
1185 help
1186 This option enables the workaround for the 720789 Cortex-A9 (prior to
1187 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1188 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1189 As a consequence of this erratum, some TLB entries which should be
1190 invalidated are not, resulting in an incoherency in the system page
1191 tables. The workaround changes the TLB flushing routines to invalidate
1192 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001193
Russell King1f0090a2011-03-16 23:35:25 +00001194config PL310_ERRATA_727915
1195 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1196 depends on CACHE_L2X0
1197 help
1198 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1199 operation (offset 0x7FC). This operation runs in background so that
1200 PL310 can handle normal accesses while it is in progress. Under very
1201 rare circumstances, due to this erratum, write data can be lost when
1202 PL310 treats a cacheable write transaction during a Clean &
1203 Invalidate by Way operation.
1204
Will Deacon475d92f2010-09-28 14:02:02 +01001205config ARM_ERRATA_743622
1206 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1207 depends on CPU_V7
1208 help
1209 This option enables the workaround for the 743622 Cortex-A9
1210 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1211 optimisation in the Cortex-A9 Store Buffer may lead to data
1212 corruption. This workaround sets a specific bit in the diagnostic
1213 register of the Cortex-A9 which disables the Store Buffer
1214 optimisation, preventing the defect from occurring. This has no
1215 visible impact on the overall performance or power consumption of the
1216 processor.
1217
Will Deacon9a27c272011-02-18 16:36:35 +01001218config ARM_ERRATA_751472
1219 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1220 depends on CPU_V7 && SMP
1221 help
1222 This option enables the workaround for the 751472 Cortex-A9 (prior
1223 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1224 completion of a following broadcasted operation if the second
1225 operation is received by a CPU before the ICIALLUIS has completed,
1226 potentially leading to corrupted entries in the cache or TLB.
1227
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001228config ARM_ERRATA_753970
1229 bool "ARM errata: cache sync operation may be faulty"
1230 depends on CACHE_PL310
1231 help
1232 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1233
1234 Under some condition the effect of cache sync operation on
1235 the store buffer still remains when the operation completes.
1236 This means that the store buffer is always asked to drain and
1237 this prevents it from merging any further writes. The workaround
1238 is to replace the normal offset of cache sync operation (0x730)
1239 by another offset targeting an unmapped PL310 register 0x740.
1240 This has the same effect as the cache sync operation: store buffer
1241 drain and waiting for all buffers empty.
1242
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001243config ARM_ERRATA_754322
1244 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1245 depends on CPU_V7
1246 help
1247 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1248 r3p*) erratum. A speculative memory access may cause a page table walk
1249 which starts prior to an ASID switch but completes afterwards. This
1250 can populate the micro-TLB with a stale entry which may be hit with
1251 the new ASID. This workaround places two dsb instructions in the mm
1252 switching code so that no page table walks can cross the ASID switch.
1253
Will Deacon5dab26a2011-03-04 12:38:54 +01001254config ARM_ERRATA_754327
1255 bool "ARM errata: no automatic Store Buffer drain"
1256 depends on CPU_V7 && SMP
1257 help
1258 This option enables the workaround for the 754327 Cortex-A9 (prior to
1259 r2p0) erratum. The Store Buffer does not have any automatic draining
1260 mechanism and therefore a livelock may occur if an external agent
1261 continuously polls a memory location waiting to observe an update.
1262 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1263 written polling loops from denying visibility of updates to memory.
1264
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001265config PL310_ERRATA_727915
1266 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1267 depends on CACHE_L2X0
1268 help
1269 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1270 operation (offset 0x7FC). This operation runs in background so that
1271 PL310 can handle normal accesses while it is in progress. Under very
1272 rare circumstances, due to this erratum, write data can be lost when
1273 PL310 treats a cacheable write transaction during a Clean &
1274 Invalidate by Way operation.
1275
1276config KSAPI
1277 tristate "KSAPI support (EXPERIMENTAL)"
1278 depends on ARCH_MSM_SCORPION || ARCH_MSM_KRAIT
1279 default n
1280 help
1281 KSAPI: Performance monitoring tool for linux.
1282 KSAPI records performance statistics for Snapdragon linux platform.
1283 It uses the /proc FS as a means to exchange configuration data and
1284 counter statistics. It can monitor the counter statistics for
1285 Scorpion processor supported hardware performance counters on a per
1286 thread basis or AXI counters on an overall system basis.
1287
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288endmenu
1289
1290source "arch/arm/common/Kconfig"
1291
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292menu "Bus support"
1293
1294config ARM_AMBA
1295 bool
1296
1297config ISA
1298 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 help
1300 Find out whether you have ISA slots on your motherboard. ISA is the
1301 name of a bus system, i.e. the way the CPU talks to the other stuff
1302 inside your box. Other bus systems are PCI, EISA, MicroChannel
1303 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1304 newer boards don't support it. If you have ISA, say Y, otherwise N.
1305
Russell King065909b2006-01-04 15:44:16 +00001306# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307config ISA_DMA
1308 bool
Russell King065909b2006-01-04 15:44:16 +00001309 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310
Russell King065909b2006-01-04 15:44:16 +00001311# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001312config ISA_DMA_API
1313 bool
Al Viro5cae8412005-05-04 05:39:22 +01001314
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001316 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317 help
1318 Find out whether you have a PCI motherboard. PCI is the name of a
1319 bus system, i.e. the way the CPU talks to the other stuff inside
1320 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1321 VESA. If you have PCI, say Y, otherwise N.
1322
Anton Vorontsov52882172010-04-19 13:20:49 +01001323config PCI_DOMAINS
1324 bool
1325 depends on PCI
1326
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001327config PCI_NANOENGINE
1328 bool "BSE nanoEngine PCI support"
1329 depends on SA1100_NANOENGINE
1330 help
1331 Enable PCI on the BSE nanoEngine board.
1332
Matthew Wilcox36e23592007-07-10 10:54:40 -06001333config PCI_SYSCALL
1334 def_bool PCI
1335
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336# Select the host bridge type
1337config PCI_HOST_VIA82C505
1338 bool
1339 depends on PCI && ARCH_SHARK
1340 default y
1341
Mike Rapoporta0113a92007-11-25 08:55:34 +01001342config PCI_HOST_ITE8152
1343 bool
1344 depends on PCI && MACH_ARMCORE
1345 default y
1346 select DMABOUNCE
1347
Linus Torvalds1da177e2005-04-16 15:20:36 -07001348source "drivers/pci/Kconfig"
1349
1350source "drivers/pcmcia/Kconfig"
1351
Will Deacon85fd3232011-09-15 11:45:15 +01001352config ARM_ERRATA_764369
1353 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1354 depends on CPU_V7 && SMP
1355 help
1356 This option enables the workaround for erratum 764369
1357 affecting Cortex-A9 MPCore with two or more processors (all
1358 current revisions). Under certain timing circumstances, a data
1359 cache line maintenance operation by MVA targeting an Inner
1360 Shareable memory region may fail to proceed up to either the
1361 Point of Coherency or to the Point of Unification of the
1362 system. This workaround adds a DSB instruction before the
1363 relevant cache maintenance functions and sets a specific bit
1364 in the diagnostic control register of the SCU.
1365
Will Deacon341f2782011-11-14 17:24:58 +01001366config PL310_ERRATA_769419
1367 bool "PL310 errata: no automatic Store Buffer drain"
1368 depends on CACHE_L2X0
1369 help
1370 On revisions of the PL310 prior to r3p2, the Store Buffer does
1371 not automatically drain. This can cause normal, non-cacheable
1372 writes to be retained when the memory system is idle, leading
1373 to suboptimal I/O performance for drivers using coherent DMA.
1374 This option adds a write barrier to the cpu_idle loop so that,
1375 on systems with an outer cache, the store buffer is drained
1376 explicitly.
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378endmenu
1379
1380menu "Kernel Features"
1381
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001382source "kernel/time/Kconfig"
1383
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001385 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001386 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001387 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001388 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001389 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001390 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001391 MSM_SMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001392 select USE_GENERIC_SMP_HELPERS
Taniya Das2760d852011-10-12 18:03:15 +05301393 select HAVE_ARM_SCU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 help
1395 This enables support for systems with more than one CPU. If you have
1396 a system with only one CPU, like most personal computers, say N. If
1397 you have a system with more than one CPU, say Y.
1398
1399 If you say N here, the kernel will run on single and multiprocessor
1400 machines, but will use only one CPU of a multiprocessor machine. If
1401 you say Y here, the kernel will run on many, but not all, single
1402 processor machines. On a single processor machine, the kernel will
1403 run faster if you say N here.
1404
Adrian Bunk03502fa2008-02-03 15:50:21 +02001405 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001407 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408
1409 If you don't know what to do here, say N.
1410
Russell Kingf00ec482010-09-04 10:47:48 +01001411config SMP_ON_UP
1412 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1413 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001414 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001415 default y
1416 help
1417 SMP kernels contain instructions which fail on non-SMP processors.
1418 Enabling this option allows the kernel to modify itself to make
1419 these instructions safe. Disabling it allows about 1K of space
1420 savings.
1421
1422 If you don't know what to do here, say Y.
1423
Russell Kinga8cbcd92009-05-16 11:51:14 +01001424config HAVE_ARM_SCU
1425 bool
1426 depends on SMP
1427 help
1428 This option enables support for the ARM system coherency unit
1429
Marc Zyngierf5b3b2b2011-11-07 14:28:33 -08001430config ARM_ARCH_TIMER
1431 bool "Architected timer support"
Marc Zyngierdf590cc2012-01-11 17:25:17 +00001432 depends on CPU_V7
Marc Zyngierf5b3b2b2011-11-07 14:28:33 -08001433 select TICK_ONESHOT
1434 help
1435 This option enables support for the ARM architected timer
1436
Russell Kingf32f4ce2009-05-16 12:14:21 +01001437config HAVE_ARM_TWD
1438 bool
1439 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001440 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001441 help
1442 This options enables support for the ARM timer and watchdog unit
1443
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001444choice
1445 prompt "Memory split"
1446 default VMSPLIT_3G
1447 help
1448 Select the desired split between kernel and user memory.
1449
1450 If you are not absolutely sure what you are doing, leave this
1451 option alone!
1452
1453 config VMSPLIT_3G
1454 bool "3G/1G user/kernel split"
1455 config VMSPLIT_2G
1456 bool "2G/2G user/kernel split"
1457 config VMSPLIT_1G
1458 bool "1G/3G user/kernel split"
1459endchoice
1460
1461config PAGE_OFFSET
1462 hex
1463 default 0x40000000 if VMSPLIT_1G
1464 default 0x80000000 if VMSPLIT_2G
1465 default 0xC0000000
1466
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467config NR_CPUS
1468 int "Maximum number of CPUs (2-32)"
1469 range 2 32
1470 depends on SMP
1471 default "4"
1472
Russell Kinga054a812005-11-02 22:24:33 +00001473config HOTPLUG_CPU
1474 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1475 depends on SMP && HOTPLUG && EXPERIMENTAL
1476 help
1477 Say Y here to experiment with turning CPUs off and on. CPUs
1478 can be controlled through /sys/devices/system/cpu.
1479
Russell King37ee16a2005-11-08 19:08:05 +00001480config LOCAL_TIMERS
1481 bool "Use local timer interrupts"
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001482 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1483 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500 || \
1484 MSM_SMP)
Russell King37ee16a2005-11-08 19:08:05 +00001485 default y
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001486 select HAVE_ARM_TWD if (!MSM_SMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001487 help
1488 Enable support for local timers on SMP platforms, rather then the
1489 legacy IPI broadcast method. Local timers allows the system
1490 accounting to be spread across the timer interval, preventing a
1491 "thundering herd" at every timer tick.
1492
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001493source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494
Russell Kingf8065812006-03-02 22:41:59 +00001495config HZ
1496 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001497 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001498 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001499 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001500 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001501 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001502 default 100
1503
Catalin Marinas16c79652009-07-24 12:33:02 +01001504config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001505 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001506 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001507 select AEABI
1508 select ARM_ASM_UNIFIED
1509 help
1510 By enabling this option, the kernel will be compiled in
1511 Thumb-2 mode. A compiler/assembler that understand the unified
1512 ARM-Thumb syntax is needed.
1513
1514 If unsure, say N.
1515
Dave Martin6f685c52011-03-03 11:41:12 +01001516config THUMB2_AVOID_R_ARM_THM_JUMP11
1517 bool "Work around buggy Thumb-2 short branch relocations in gas"
1518 depends on THUMB2_KERNEL && MODULES
1519 default y
1520 help
1521 Various binutils versions can resolve Thumb-2 branches to
1522 locally-defined, preemptible global symbols as short-range "b.n"
1523 branch instructions.
1524
1525 This is a problem, because there's no guarantee the final
1526 destination of the symbol, or any candidate locations for a
1527 trampoline, are within range of the branch. For this reason, the
1528 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1529 relocation in modules at all, and it makes little sense to add
1530 support.
1531
1532 The symptom is that the kernel fails with an "unsupported
1533 relocation" error when loading some modules.
1534
1535 Until fixed tools are available, passing
1536 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1537 code which hits this problem, at the cost of a bit of extra runtime
1538 stack usage in some cases.
1539
1540 The problem is described in more detail at:
1541 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1542
1543 Only Thumb-2 kernels are affected.
1544
1545 Unless you are sure your tools don't have this problem, say Y.
1546
Catalin Marinas0becb082009-07-24 12:32:53 +01001547config ARM_ASM_UNIFIED
1548 bool
1549
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001550config AEABI
1551 bool "Use the ARM EABI to compile the kernel"
1552 help
1553 This option allows for the kernel to be compiled using the latest
1554 ARM ABI (aka EABI). This is only useful if you are using a user
1555 space environment that is also compiled with EABI.
1556
1557 Since there are major incompatibilities between the legacy ABI and
1558 EABI, especially with regard to structure member alignment, this
1559 option also changes the kernel syscall calling convention to
1560 disambiguate both ABIs and allow for backward compatibility support
1561 (selected with CONFIG_OABI_COMPAT).
1562
1563 To use this you need GCC version 4.0.0 or later.
1564
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001565config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001566 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001567 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001568 default y
1569 help
1570 This option preserves the old syscall interface along with the
1571 new (ARM EABI) one. It also provides a compatibility layer to
1572 intercept syscalls that have structure arguments which layout
1573 in memory differs between the legacy ABI and the new ARM EABI
1574 (only for non "thumb" binaries). This option adds a tiny
1575 overhead to all syscalls and produces a slightly larger kernel.
1576 If you know you'll be using only pure EABI user space then you
1577 can say N here. If this option is not selected and you attempt
1578 to execute a legacy ABI binary then the result will be
1579 UNPREDICTABLE (in fact it can be predicted that it won't work
1580 at all). If in doubt say Y.
1581
Mel Gormaneb335752009-05-13 17:34:48 +01001582config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001583 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001584
Russell King05944d72006-11-30 20:43:51 +00001585config ARCH_SPARSEMEM_ENABLE
1586 bool
1587
Russell King07a2f732008-10-01 21:39:58 +01001588config ARCH_SPARSEMEM_DEFAULT
1589 def_bool ARCH_SPARSEMEM_ENABLE
1590
Russell King05944d72006-11-30 20:43:51 +00001591config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001592 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001593
Will Deacon7b7bf492011-05-19 13:21:14 +01001594config HAVE_ARCH_PFN_VALID
1595 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1596
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001597config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001598 bool "High Memory Support"
1599 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001600 help
1601 The address space of ARM processors is only 4 Gigabytes large
1602 and it has to accommodate user address space, kernel address
1603 space as well as some memory mapped IO. That means that, if you
1604 have a large amount of physical memory and/or IO, not all of the
1605 memory can be "permanently mapped" by the kernel. The physical
1606 memory that is not permanently mapped is called "high memory".
1607
1608 Depending on the selected kernel/user memory split, minimum
1609 vmalloc space and actual amount of RAM, you may not need this
1610 option which should result in a slightly faster kernel.
1611
1612 If unsure, say n.
1613
Russell King65cec8e2009-08-17 20:02:06 +01001614config HIGHPTE
1615 bool "Allocate 2nd-level pagetables from highmem"
1616 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001617
Jamie Iles1b8873a2010-02-02 20:25:44 +01001618config HW_PERF_EVENTS
1619 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001620 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001621 default y
1622 help
1623 Enable hardware performance counter support for perf events. If
1624 disabled, perf events will use software events only.
1625
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001626config VMALLOC_RESERVE
1627 hex "Reserved vmalloc space"
1628 default 0x08000000
1629 depends on MMU
1630 help
1631 Reserved vmalloc space if not specified on the kernel commandline.
1632
Dave Hansen3f22ab22005-06-23 00:07:43 -07001633source "mm/Kconfig"
1634
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001635config ARCH_MEMORY_PROBE
1636 def_bool n
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001637
1638config ARCH_MEMORY_REMOVE
1639 def_bool n
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001640
Larry Basseld4e809e2011-09-08 10:46:49 -07001641config ARCH_POPULATES_NODE_MAP
1642 def_bool n
Larry Basseld4e809e2011-09-08 10:46:49 -07001643
Larry Basselb8d61022012-02-24 10:49:45 -08001644config ENABLE_DMM
1645 def_bool n
Larry Basselb8d61022012-02-24 10:49:45 -08001646
Larry Bassel6eae21a2011-10-14 10:49:33 -07001647config FIX_MOVABLE_ZONE
1648 def_bool n
Larry Bassel6eae21a2011-10-14 10:49:33 -07001649
Larry Bassel150d5032011-09-20 14:32:13 -07001650config DONT_MAP_HOLE_AFTER_MEMBANK0
1651 def_bool n
1652 depends on SPARSEMEM
1653
Bryan Huntsman45f580d2011-11-23 12:31:46 -08001654config ARCH_ENABLE_MEMORY_HOTPLUG
1655 def_bool n
1656
1657config ARCH_ENABLE_MEMORY_HOTREMOVE
1658 def_bool n
1659
Magnus Dammc1b2d972010-07-05 10:00:11 +01001660config FORCE_MAX_ZONEORDER
1661 int "Maximum zone order" if ARCH_SHMOBILE
1662 range 11 64 if ARCH_SHMOBILE
1663 default "9" if SA1111
1664 default "11"
1665 help
1666 The kernel memory allocator divides physically contiguous memory
1667 blocks into "zones", where each zone is a power of two number of
1668 pages. This option selects the largest power of two that the kernel
1669 keeps in the memory allocator. If you need to allocate very large
1670 blocks of physically contiguous memory, then you may need to
1671 increase this value.
1672
1673 This config option is actually maximum order plus one. For example,
1674 a value of 11 means that the largest free memory block is 2^10 pages.
1675
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676config LEDS
1677 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001678 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001679 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1681 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001682 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001683 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001684 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685 help
1686 If you say Y here, the LEDs on your machine will be used
1687 to provide useful information about your current system status.
1688
1689 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1690 be able to select which LEDs are active using the options below. If
1691 you are compiling a kernel for the EBSA-110 or the LART however, the
1692 red LED will simply flash regularly to indicate that the system is
1693 still functional. It is safe to say Y here if you have a CATS
1694 system, but the driver will do nothing.
1695
1696config LEDS_TIMER
1697 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001698 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1699 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001701 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702 default y if ARCH_EBSA110
1703 help
1704 If you say Y here, one of the system LEDs (the green one on the
1705 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1706 will flash regularly to indicate that the system is still
1707 operational. This is mainly useful to kernel hackers who are
1708 debugging unstable kernels.
1709
1710 The LART uses the same LED for both Timer LED and CPU usage LED
1711 functions. You may choose to use both, but the Timer LED function
1712 will overrule the CPU usage LED.
1713
1714config LEDS_CPU
1715 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001716 !ARCH_OMAP) \
1717 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1718 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 depends on LEDS
1720 help
1721 If you say Y here, the red LED will be used to give a good real
1722 time indication of CPU usage, by lighting whenever the idle task
1723 is not currently executing.
1724
1725 The LART uses the same LED for both Timer LED and CPU usage LED
1726 functions. You may choose to use both, but the Timer LED function
1727 will overrule the CPU usage LED.
1728
1729config ALIGNMENT_TRAP
1730 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001731 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001733 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001735 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1737 address divisible by 4. On 32-bit ARM processors, these non-aligned
1738 fetch/store instructions will be emulated in software if you say
1739 here, which has a severe performance impact. This is necessary for
1740 correct operation of some network protocols. With an IP-only
1741 configuration it is safe to say N, otherwise say Y.
1742
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001743config UACCESS_WITH_MEMCPY
1744 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1745 depends on MMU && EXPERIMENTAL
1746 default y if CPU_FEROCEON
1747 help
1748 Implement faster copy_to_user and clear_user methods for CPU
1749 cores where a 8-word STM instruction give significantly higher
1750 memory write throughput than a sequence of individual 32bit stores.
1751
1752 A possible side effect is a slight increase in scheduling latency
1753 between threads sharing the same address space if they invoke
1754 such copy operations with large buffers.
1755
1756 However, if the CPU data cache is using a write-allocate mode,
1757 this option is unlikely to provide any performance gain.
1758
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001759config SECCOMP
1760 bool
1761 prompt "Enable seccomp to safely compute untrusted bytecode"
1762 ---help---
1763 This kernel feature is useful for number crunching applications
1764 that may need to compute untrusted bytecode during their
1765 execution. By using pipes or other transports made available to
1766 the process as file descriptors supporting the read/write
1767 syscalls, it's possible to isolate those applications in
1768 their own address space using seccomp. Once seccomp is
1769 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1770 and the task is only allowed to execute a few safe syscalls
1771 defined by each seccomp mode.
1772
Nicolas Pitrec743f382010-05-24 23:55:42 -04001773config CC_STACKPROTECTOR
1774 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001775 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001776 help
1777 This option turns on the -fstack-protector GCC feature. This
1778 feature puts, at the beginning of functions, a canary value on
1779 the stack just before the return address, and validates
1780 the value just before actually returning. Stack based buffer
1781 overflows (that need to overwrite this return address) now also
1782 overwrite the canary, which gets detected and the attack is then
1783 neutralized via a kernel panic.
1784 This feature requires gcc version 4.2 or above.
1785
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001786config DEPRECATED_PARAM_STRUCT
1787 bool "Provide old way to pass kernel parameters"
1788 help
1789 This was deprecated in 2001 and announced to live on for 5 years.
1790 Some old boot loaders still use this way.
1791
Dima Zavin76594492011-08-23 15:56:50 -07001792config ARM_FLUSH_CONSOLE_ON_RESTART
1793 bool "Force flush the console on restart"
1794 help
1795 If the console is locked while the system is rebooted, the messages
1796 in the temporary logbuffer would not have propogated to all the
1797 console drivers. This option forces the console lock to be
1798 released if it failed to be acquired, which will cause all the
1799 pending messages to be flushed.
1800
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001801config CP_ACCESS
1802 tristate "CP register access tool"
1803 default m
1804 help
1805 Provide support for Coprocessor register access using /sys
1806 interface. Read and write to CP registers from userspace
1807 through sysfs interface. A sys file (cp_rw) will be created under
1808 /sys/devices/system/cpaccess/cpaccess0.
1809
1810 If unsure, say N.
1811
Linus Torvalds1da177e2005-04-16 15:20:36 -07001812endmenu
1813
1814menu "Boot options"
1815
Grant Likely9eb8f672011-04-28 14:27:20 -06001816config USE_OF
1817 bool "Flattened Device Tree support"
1818 select OF
1819 select OF_EARLY_FLATTREE
Grant Likely6469dfb2011-07-26 03:19:06 -06001820 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001821 help
1822 Include support for flattened device tree machine descriptions.
1823
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824# Compressed boot loader in ROM. Yes, we really want to ask about
1825# TEXT and BSS so we preserve their values in the config files.
1826config ZBOOT_ROM_TEXT
1827 hex "Compressed ROM boot loader base address"
1828 default "0"
1829 help
1830 The physical address at which the ROM-able zImage is to be
1831 placed in the target. Platforms which normally make use of
1832 ROM-able zImage formats normally set this to a suitable
1833 value in their defconfig file.
1834
1835 If ZBOOT_ROM is not enabled, this has no effect.
1836
1837config ZBOOT_ROM_BSS
1838 hex "Compressed ROM boot loader BSS address"
1839 default "0"
1840 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001841 The base address of an area of read/write memory in the target
1842 for the ROM-able zImage which must be available while the
1843 decompressor is running. It must be large enough to hold the
1844 entire decompressed kernel plus an additional 128 KiB.
1845 Platforms which normally make use of ROM-able zImage formats
1846 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847
1848 If ZBOOT_ROM is not enabled, this has no effect.
1849
1850config ZBOOT_ROM
1851 bool "Compressed boot loader in ROM/flash"
1852 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1853 help
1854 Say Y here if you intend to execute your compressed kernel image
1855 (zImage) directly from ROM or flash. If unsure, say N.
1856
Simon Hormanf45b1142011-01-11 04:01:08 +01001857config ZBOOT_ROM_MMCIF
1858 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1859 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1860 help
1861 Say Y here to include experimental MMCIF loading code in the
1862 ROM-able zImage. With this enabled it is possible to write the
1863 the ROM-able zImage kernel image to an MMC card and boot the
1864 kernel straight from the reset vector. At reset the processor
1865 Mask ROM will load the first part of the the ROM-able zImage
1866 which in turn loads the rest the kernel image to RAM using the
1867 MMCIF hardware block.
1868
John Bonesioede5d5d2011-05-27 18:45:50 -04001869config ARM_APPENDED_DTB
1870 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1871 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1872 help
1873 With this option, the boot code will look for a device tree binary
1874 (DTB) appended to zImage
1875 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1876
1877 This is meant as a backward compatibility convenience for those
1878 systems with a bootloader that can't be upgraded to accommodate
1879 the documented boot protocol using a device tree.
1880
1881 Beware that there is very little in terms of protection against
1882 this option being confused by leftover garbage in memory that might
1883 look like a DTB header after a reboot if no actual DTB is appended
1884 to zImage. Do not leave this option active in a production kernel
1885 if you don't intend to always append a DTB. Proper passing of the
1886 location into r2 of a bootloader provided DTB is always preferable
1887 to this option.
1888
Nicolas Pitrebbc98d12011-09-13 22:37:07 -04001889config ARM_ATAG_DTB_COMPAT
1890 bool "Supplement the appended DTB with traditional ATAG information"
1891 depends on ARM_APPENDED_DTB
1892 help
1893 Some old bootloaders can't be updated to a DTB capable one, yet
1894 they provide ATAGs with memory configuration, the ramdisk address,
1895 the kernel cmdline string, etc. Such information is dynamically
1896 provided by the bootloader and can't always be stored in a static
1897 DTB. To allow a device tree enabled kernel to be used with such
1898 bootloaders, this option allows zImage to extract the information
1899 from the ATAG list and store it at run time into the appended DTB.
1900
Linus Torvalds1da177e2005-04-16 15:20:36 -07001901config CMDLINE
1902 string "Default kernel command string"
1903 default ""
1904 help
1905 On some architectures (EBSA110 and CATS), there is currently no way
1906 for the boot loader to pass arguments to the kernel. For these
1907 architectures, you should supply some command-line options at build
1908 time by entering them here. As a minimum, you should specify the
1909 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1910
Victor Boivie4394c122011-05-04 17:07:55 +01001911choice
1912 prompt "Kernel command line type" if CMDLINE != ""
1913 default CMDLINE_FROM_BOOTLOADER
1914
1915config CMDLINE_FROM_BOOTLOADER
1916 bool "Use bootloader kernel arguments if available"
1917 help
1918 Uses the command-line options passed by the boot loader. If
1919 the boot loader doesn't provide any, the default kernel command
1920 string provided in CMDLINE will be used.
1921
1922config CMDLINE_EXTEND
1923 bool "Extend bootloader kernel arguments"
1924 help
1925 The command-line arguments provided by the boot loader will be
1926 appended to the default kernel command string.
1927
Alexander Holler92d20402010-02-16 19:04:53 +01001928config CMDLINE_FORCE
1929 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001930 help
1931 Always use the default kernel command string, even if the boot
1932 loader passes other arguments to the kernel.
1933 This is useful if you cannot or don't want to change the
1934 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001935endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001936
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937config XIP_KERNEL
1938 bool "Kernel Execute-In-Place from ROM"
1939 depends on !ZBOOT_ROM
1940 help
1941 Execute-In-Place allows the kernel to run from non-volatile storage
1942 directly addressable by the CPU, such as NOR flash. This saves RAM
1943 space since the text section of the kernel is not loaded from flash
1944 to RAM. Read-write sections, such as the data section and stack,
1945 are still copied to RAM. The XIP kernel is not compressed since
1946 it has to run directly from flash, so it will take more space to
1947 store it. The flash address used to link the kernel object files,
1948 and for storing it, is configuration dependent. Therefore, if you
1949 say Y here, you must know the proper physical address where to
1950 store the kernel image depending on your own flash memory usage.
1951
1952 Also note that the make target becomes "make xipImage" rather than
1953 "make zImage" or "make Image". The final kernel binary to put in
1954 ROM memory will be arch/arm/boot/xipImage.
1955
1956 If unsure, say N.
1957
1958config XIP_PHYS_ADDR
1959 hex "XIP Kernel Physical Location"
1960 depends on XIP_KERNEL
1961 default "0x00080000"
1962 help
1963 This is the physical address in your flash memory the kernel will
1964 be linked for and stored to. This address is dependent on your
1965 own flash usage.
1966
Richard Purdiec587e4a2007-02-06 21:29:00 +01001967config KEXEC
1968 bool "Kexec system call (EXPERIMENTAL)"
1969 depends on EXPERIMENTAL
1970 help
1971 kexec is a system call that implements the ability to shutdown your
1972 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001973 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001974 you can start any kernel with it, not just Linux.
1975
1976 It is an ongoing process to be certain the hardware in a machine
1977 is properly shutdown, so do not be surprised if this code does not
1978 initially work for you. It may help to enable device hotplugging
1979 support.
1980
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001981config ATAGS_PROC
1982 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001983 depends on KEXEC
1984 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001985 help
1986 Should the atags used to boot the kernel be exported in an "atags"
1987 file in procfs. Useful with kexec.
1988
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001989config CRASH_DUMP
1990 bool "Build kdump crash kernel (EXPERIMENTAL)"
1991 depends on EXPERIMENTAL
1992 help
1993 Generate crash dump after being started by kexec. This should
1994 be normally only set in special crash dump kernels which are
1995 loaded in the main kernel with kexec-tools into a specially
1996 reserved region and then later executed after a crash by
1997 kdump/kexec. The crash dump kernel must be compiled to a
1998 memory address not used by the main kernel
1999
2000 For more details see Documentation/kdump/kdump.txt
2001
Eric Miaoe69edc792010-07-05 15:56:50 +02002002config AUTO_ZRELADDR
2003 bool "Auto calculation of the decompressed kernel image address"
2004 depends on !ZBOOT_ROM && !ARCH_U300
2005 help
2006 ZRELADDR is the physical address where the decompressed kernel
2007 image will be placed. If AUTO_ZRELADDR is selected, the address
2008 will be determined at run-time by masking the current IP with
2009 0xf8000000. This assumes the zImage being placed in the first 128MB
2010 from start of memory.
2011
Linus Torvalds1da177e2005-04-16 15:20:36 -07002012endmenu
2013
Russell Kingac9d7ef2008-08-18 17:26:00 +01002014menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002015
Ben Dooks89c52ed2009-07-30 23:23:24 +01002016if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017
2018source "drivers/cpufreq/Kconfig"
2019
Yong Shen64f102b2010-10-21 21:18:59 +08002020config CPU_FREQ_IMX
2021 tristate "CPUfreq driver for i.MX CPUs"
2022 depends on ARCH_MXC && CPU_FREQ
2023 help
2024 This enables the CPUfreq driver for i.MX CPUs.
2025
Linus Torvalds1da177e2005-04-16 15:20:36 -07002026config CPU_FREQ_SA1100
2027 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028
2029config CPU_FREQ_SA1110
2030 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002031
2032config CPU_FREQ_INTEGRATOR
2033 tristate "CPUfreq driver for ARM Integrator CPUs"
2034 depends on ARCH_INTEGRATOR && CPU_FREQ
2035 default y
2036 help
2037 This enables the CPUfreq driver for ARM Integrator CPUs.
2038
2039 For details, take a look at <file:Documentation/cpu-freq>.
2040
2041 If in doubt, say Y.
2042
Russell King9e2697f2007-12-14 13:30:14 +00002043config CPU_FREQ_PXA
2044 bool
2045 depends on CPU_FREQ && ARCH_PXA && PXA25x
2046 default y
2047 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2048
Mark Brownb3748dd2009-06-15 11:23:20 +01002049config CPU_FREQ_S3C64XX
2050 bool "CPUfreq support for Samsung S3C64XX CPUs"
2051 depends on CPU_FREQ && CPU_S3C6410
2052
Ben Dooks9d56c022009-07-30 23:23:25 +01002053config CPU_FREQ_S3C
2054 bool
2055 help
2056 Internal configuration node for common cpufreq on Samsung SoC
2057
2058config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002059 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002060 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2061 select CPU_FREQ_S3C
2062 help
2063 This enables the CPUfreq driver for the Samsung S3C24XX family
2064 of CPUs.
2065
2066 For details, take a look at <file:Documentation/cpu-freq>.
2067
2068 If in doubt, say N.
2069
2070config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002071 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002072 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2073 help
2074 Compile in support for changing the PLL frequency from the
2075 S3C24XX series CPUfreq driver. The PLL takes time to settle
2076 after a frequency change, so by default it is not enabled.
2077
2078 This also means that the PLL tables for the selected CPU(s) will
2079 be built which may increase the size of the kernel image.
2080
2081config CPU_FREQ_S3C24XX_DEBUG
2082 bool "Debug CPUfreq Samsung driver core"
2083 depends on CPU_FREQ_S3C24XX
2084 help
2085 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2086
2087config CPU_FREQ_S3C24XX_IODEBUG
2088 bool "Debug CPUfreq Samsung driver IO timing"
2089 depends on CPU_FREQ_S3C24XX
2090 help
2091 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2092
Ben Dookse6d197a2009-07-30 23:23:42 +01002093config CPU_FREQ_S3C24XX_DEBUGFS
2094 bool "Export debugfs for CPUFreq"
2095 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2096 help
2097 Export status information via debugfs.
2098
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099endif
2100
Russell Kingac9d7ef2008-08-18 17:26:00 +01002101source "drivers/cpuidle/Kconfig"
2102
2103endmenu
2104
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07002105config CPU_FREQ_MSM
2106 bool
2107 depends on CPU_FREQ && ARCH_MSM
2108 default y
2109 help
2110 This enables the CPUFreq driver for Qualcomm CPUs.
2111 If in doubt, say Y.
2112
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113menu "Floating point emulation"
2114
2115comment "At least one emulation must be selected"
2116
2117config FPE_NWFPE
2118 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002119 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 ---help---
2121 Say Y to include the NWFPE floating point emulator in the kernel.
2122 This is necessary to run most binaries. Linux does not currently
2123 support floating point hardware so you need to say Y here even if
2124 your machine has an FPA or floating point co-processor podule.
2125
2126 You may say N here if you are going to load the Acorn FPEmulator
2127 early in the bootup.
2128
2129config FPE_NWFPE_XP
2130 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002131 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132 help
2133 Say Y to include 80-bit support in the kernel floating-point
2134 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2135 Note that gcc does not generate 80-bit operations by default,
2136 so in most cases this option only enlarges the size of the
2137 floating point emulator without any good reason.
2138
2139 You almost surely want to say N here.
2140
2141config FPE_FASTFPE
2142 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002143 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144 ---help---
2145 Say Y here to include the FAST floating point emulator in the kernel.
2146 This is an experimental much faster emulator which now also has full
2147 precision for the mantissa. It does not support any exceptions.
2148 It is very simple, and approximately 3-6 times faster than NWFPE.
2149
2150 It should be sufficient for most programs. It may be not suitable
2151 for scientific calculations, but you have to check this for yourself.
2152 If you do not feel you need a faster FP emulation you should better
2153 choose NWFPE.
2154
2155config VFP
2156 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002157 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158 help
2159 Say Y to include VFP support code in the kernel. This is needed
2160 if your hardware includes a VFP unit.
2161
2162 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2163 release notes and additional status information.
2164
2165 Say N if your target does not have VFP hardware.
2166
Catalin Marinas25ebee02007-09-25 15:22:24 +01002167config VFPv3
2168 bool
2169 depends on VFP
2170 default y if CPU_V7
2171
Catalin Marinasb5872db2008-01-10 19:16:17 +01002172config NEON
2173 bool "Advanced SIMD (NEON) Extension support"
2174 depends on VFPv3 && CPU_V7
2175 help
2176 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2177 Extension.
2178
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179endmenu
2180
2181menu "Userspace binary formats"
2182
2183source "fs/Kconfig.binfmt"
2184
2185config ARTHUR
2186 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002187 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188 help
2189 Say Y here to include the kernel code necessary if you want to run
2190 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2191 experimental; if this sounds frightening, say N and sleep in peace.
2192 You can also say M here to compile this support as a module (which
2193 will be called arthur).
2194
2195endmenu
2196
2197menu "Power management options"
2198
Russell Kingeceab4a2005-11-15 11:31:41 +00002199source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200
Johannes Bergf4cb5702007-12-08 02:14:00 +01002201config ARCH_SUSPEND_POSSIBLE
Maheshkumar Sivasubramanian74b68802011-09-15 09:27:03 -06002202 depends on !ARCH_S5P64X0 && !ARCH_S5PC100 && !ARCH_FSM9XXX
Russell King6a786182011-04-02 10:15:28 +01002203 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2204 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002205 def_bool y
2206
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207endmenu
2208
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002209source "net/Kconfig"
2210
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002211source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212
2213source "fs/Kconfig"
2214
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215source "arch/arm/Kconfig.debug"
2216
2217source "security/Kconfig"
2218
2219source "crypto/Kconfig"
2220
2221source "lib/Kconfig"