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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 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
Russell King5388a6b2010-07-26 13:19:43 +010065 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config GENERIC_ISA_DMA
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config FIQ
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
Russell King111e9a52011-05-12 10:02:42 +0100200 Patch phys-to-virt and virt-to-phys translation functions at
201 boot and module load time according to the position of the
202 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell King111e9a52011-05-12 10:02:42 +0100204 This can only be used with non-XIP MMU kernels where the base
205 of physical memory is at a 16MB boundary, or theoretically 64K
206 for the MSM machine class.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell Kingcada3c02011-01-04 19:39:29 +0000208config ARM_PATCH_PHYS_VIRT_16BIT
209 def_bool y
210 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
Russell King111e9a52011-05-12 10:02:42 +0100211 help
212 This option extends the physical to virtual translation patching
213 to allow physical memory down to a theoretical minimum of 64K
214 boundaries.
Russell Kingcada3c02011-01-04 19:39:29 +0000215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216source "init/Kconfig"
217
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700218source "kernel/Kconfig.freezer"
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220menu "System Type"
221
Hyok S. Choi3c427972009-07-24 12:35:00 +0100222config MMU
223 bool "MMU-based Paged Memory Management Support"
224 default y
225 help
226 Select if you want MMU-based virtualised addressing space
227 support by paged memory management. If unsure, say 'Y'.
228
Russell Kingccf50e22010-03-15 19:03:06 +0000229#
230# The "ARM system type" choice list is ordered alphabetically by option
231# text. Please add new entries in the option alphabetic order.
232#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233choice
234 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000235 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100241 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000242 select ICST
Russell King13edd862010-01-15 21:49:23 +0000243 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000244 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000245 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 help
247 Support for ARM's Integrator platform.
248
249config ARCH_REALVIEW
250 bool "ARM Ltd. RealView family"
251 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100252 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000253 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000256 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000257 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000258 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100259 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260 help
261 This enables support for ARM Ltd RealView boards.
262
263config ARCH_VERSATILE
264 bool "ARM Ltd. Versatile family"
265 select ARM_AMBA
266 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000268 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100269 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100270 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000271 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000272 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000273 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000274 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275 help
276 This enables support for ARM Ltd Versatile board.
277
Russell Kingceade892010-02-11 21:44:53 +0000278config ARCH_VEXPRESS
279 bool "ARM Ltd. Versatile Express family"
280 select ARCH_WANT_OPTIONAL_GPIOLIB
281 select ARM_AMBA
282 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100283 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000284 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000285 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100286 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000287 select ICST
288 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000289 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000290 help
291 This enables support for the ARM Ltd Versatile Express boards.
292
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100293config ARCH_AT91
294 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100295 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700296 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100297 select CLKDEV_LOOKUP
Jean-Christophe PLAGNIOL-VILLARD3d51f252011-05-03 00:44:58 +0800298 select ARM_PATCH_PHYS_VIRT if MMU
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100300 This enables support for systems based on the Atmel AT91RM9200,
301 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302
Russell Kingccf50e22010-03-15 19:03:06 +0000303config ARCH_BCMRING
304 bool "Broadcom BCMRING"
305 depends on MMU
306 select CPU_V6
307 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000310 select GENERIC_CLOCKEVENTS
311 select ARCH_WANT_OPTIONAL_GPIOLIB
312 help
313 Support for Broadcom's BCMRing platform.
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100316 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000317 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000319 help
320 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300322config ARCH_CNS3XXX
323 bool "Cavium Networks CNS3XXX family"
324 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300325 select GENERIC_CLOCKEVENTS
326 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100327 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400328 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300329 help
330 Support for Cavium Networks CNS3XXX platform.
331
Russell King788c9702009-04-26 14:21:59 +0100332config ARCH_GEMINI
333 bool "Cortina Systems Gemini"
334 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100335 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100337 help
338 Support for the Cortina Systems Gemini family SoCs
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config ARCH_EBSA110
341 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000342 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100343 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000344 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000345 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 help
347 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000348 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 Ethernet interface, two PCMCIA sockets, two serial ports and a
350 parallel port.
351
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000352config ARCH_EP93XX
353 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000355 select ARM_AMBA
356 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100357 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700358 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100359 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000360 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000361 help
362 This enables support for the Cirrus EP93xx series of CPUs.
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364config ARCH_FOOTBRIDGE
365 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000368 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
370 Support for systems based on the DC21285 companion chip
371 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
Russell King788c9702009-04-26 14:21:59 +0100373config ARCH_MXC
374 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100375 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100376 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100377 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100378 select CLKSRC_MMIO
Jan Weitzelc124bef2011-03-17 13:44:30 +0100379 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100380 help
381 Support for Freescale MXC/iMX-based family of processors
382
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800383config ARCH_MXS
384 bool "Freescale MXS-based"
385 select GENERIC_CLOCKEVENTS
386 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100387 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100388 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800389 help
390 Support for Freescale MXS-based family of processors
391
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100392config ARCH_NETX
393 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100394 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100397 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100399 This enables support for systems based on the Hilscher NetX Soc
400
401config ARCH_H720X
402 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100404 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000405 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100406 help
407 This enables support for systems based on the Hynix HMS720x
408
Russell King3b938be2007-05-12 11:25:44 +0100409config ARCH_IOP13XX
410 bool "IOP13xx-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100413 select PLAT_IOP
414 select PCI
415 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100416 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100417 help
418 Support for Intel's IOP13XX (XScale) family of processors.
419
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420config ARCH_IOP32X
421 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100424 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100426 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 Support for Intel's 80219 and IOP32X (XScale) family of
429 processors.
430
431config ARCH_IOP33X
432 bool "IOP33x-based"
433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100435 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100437 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100438 help
439 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IXP23XX
442 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100445 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100447 help
Russell King3b938be2007-05-12 11:25:44 +0100448 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450config ARCH_IXP2000
451 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100454 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000455 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
457 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IXP4XX
460 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100461 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100462 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100464 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100465 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000466 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100467 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100468 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100469 help
Russell King3b938be2007-05-12 11:25:44 +0100470 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100471
Saeed Bisharaedabd382009-08-06 15:12:43 +0300472config ARCH_DOVE
473 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300474 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300475 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300476 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the Marvell Dove SoC 88AP510
481
Saeed Bishara651c74c2008-06-22 22:45:06 +0200482config ARCH_KIRKWOOD
483 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000484 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200485 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700486 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200487 select GENERIC_CLOCKEVENTS
488 select PLAT_ORION
489 help
490 Support for the following Marvell Kirkwood series SoCs:
491 88F6180, 88F6192 and 88F6281.
492
Russell King788c9702009-04-26 14:21:59 +0100493config ARCH_LOKI
494 bool "Marvell Loki (88RC8480)"
495 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100496 select GENERIC_CLOCKEVENTS
497 select PLAT_ORION
498 help
499 Support for the Marvell Loki (88RC8480) SoC.
500
Kevin Wells40805942010-07-27 08:49:04 -0700501config ARCH_LPC32XX
502 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100503 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700504 select CPU_ARM926T
505 select ARCH_REQUIRE_GPIOLIB
506 select HAVE_IDE
507 select ARM_AMBA
508 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100509 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700510 select GENERIC_TIME
511 select GENERIC_CLOCKEVENTS
512 help
513 Support for the NXP LPC32XX family of processors
514
Russell King788c9702009-04-26 14:21:59 +0100515config ARCH_MV78XX0
516 bool "Marvell MV78xx0"
517 select CPU_FEROCEON
518 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700519 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100520 select GENERIC_CLOCKEVENTS
521 select PLAT_ORION
522 help
523 Support for the following Marvell MV78xx0 series SoCs:
524 MV781x0, MV782x0.
525
526config ARCH_ORION5X
527 bool "Marvell Orion"
528 depends on MMU
529 select CPU_FEROCEON
530 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700531 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100532 select GENERIC_CLOCKEVENTS
533 select PLAT_ORION
534 help
535 Support for the following Marvell Orion 5x series SoCs:
536 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
537 Orion-2 (5281), Orion-1-90 (6183).
538
539config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500540 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100541 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100542 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100543 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100544 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000545 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100546 select TICK_ONESHOT
547 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400548 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100549 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500550 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100551
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100552config ARCH_KS8695
553 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000554 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100555 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000556 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100557 help
558 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
559 System-on-Chip devices.
560
Russell King788c9702009-04-26 14:21:59 +0100561config ARCH_W90X900
562 bool "Nuvoton W90X900 CPU"
563 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100564 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100565 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100566 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200568 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100569 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570 At present, the w90x900 has been renamed nuc900, regarding
571 the ARM series product line, you can login the following
572 link address to know more.
573
574 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400576
wanzongshuna62e9032009-12-31 15:06:05 +0100577config ARCH_NUC93X
578 bool "Nuvoton NUC93X CPU"
579 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100580 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100581 help
582 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583 low-power and high performance MPEG-4/JPEG multimedia controller chip.
584
Erik Gillingc5f80062010-01-21 16:53:02 -0800585config ARCH_TEGRA
586 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000587 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100588 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800589 select GENERIC_TIME
590 select GENERIC_CLOCKEVENTS
591 select GENERIC_GPIO
592 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000593 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800594 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700595 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800596 help
597 This enables support for NVIDIA Tegra based systems (Tegra APX,
598 Tegra 6xx and Tegra 2 series).
599
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100600config ARCH_PNX4008
601 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000602 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100603 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000604 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100605 help
606 This enables support for Philips PNX4008 mobile platform.
607
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700609 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100610 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500611 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100612 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100613 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100614 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700615 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100616 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000617 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000618 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800619 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800620 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000621 help
eric miao2c8086a2007-09-11 19:13:17 -0700622 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Russell King788c9702009-04-26 14:21:59 +0100624config ARCH_MSM
625 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500626 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800627 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700628 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800629 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800630 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800631 Support for Qualcomm MSM/QSD based systems. This runs on the
632 apps processor of the MSM/QSD and depends on a shared memory
633 interface to the modem processor which runs the baseband
634 stack and controls some vital subsystems
635 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800636
Magnus Dammc793c1b2010-02-05 11:14:49 +0000637config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900638 bool "Renesas SH-Mobile / R-Mobile"
639 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900640 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900641 select GENERIC_CLOCKEVENTS
642 select NO_IOPORT
643 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000644 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000645 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900646 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648config ARCH_RPC
649 bool "RiscPC"
650 select ARCH_ACORN
651 select FIQ
652 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100653 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100654 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000655 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000656 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100657 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000658 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 help
660 On the Acorn Risc-PC, Linux can support the internal IDE disk and
661 CD-ROM interface, serial and parallel port, and the floppy drive.
662
663config ARCH_SA1100
664 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100665 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000666 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100667 select ISA
Russell King05944d72006-11-30 20:43:51 +0000668 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500669 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100670 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000671 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100672 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700673 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000674 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100675 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700676 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000677 help
678 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
680config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900681 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800682 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100683 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700684 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900685 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000686 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900687 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688 help
689 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
690 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000691 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692
Ben Dooks63b1f512010-04-30 16:32:26 +0900693 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300694 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900695 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
696
Ben Dooksa08ab632008-10-21 14:06:39 +0100697config ARCH_S3C64XX
698 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000699 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900700 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900701 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100702 select HAVE_CLK
Thomas Abraham226e85f2011-06-14 19:12:26 +0900703 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900704 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000705 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100706 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900707 select ARCH_REQUIRE_GPIOLIB
708 select SAMSUNG_CLKSRC
709 select SAMSUNG_IRQ_VIC_TIMER
710 select SAMSUNG_IRQ_UART
711 select S3C_GPIO_TRACK
712 select S3C_GPIO_PULL_UPDOWN
713 select S3C_GPIO_CFG_S3C24XX
714 select S3C_GPIO_CFG_S3C64XX
715 select S3C_DEV_NAND
716 select USB_ARCH_HAS_OHCI
717 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900718 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900719 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100720 help
721 Samsung S3C64XX series based systems
722
Kukjin Kim49b7a492010-09-07 15:47:18 +0900723config ARCH_S5P64X0
724 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900725 select CPU_V6
726 select GENERIC_GPIO
727 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900728 select CLKDEV_LOOKUP
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900729 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900730 select GENERIC_CLOCKEVENTS
731 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900732 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900733 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900734 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900735 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
736 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900737
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200738config ARCH_S5PC100
739 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900740 select GENERIC_GPIO
741 select HAVE_CLK
742 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100743 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900744 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900745 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900746 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900747 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900748 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200749 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900750
Kukjin Kim170f4e42010-02-24 16:40:44 +0900751config ARCH_S5PV210
752 bool "Samsung S5PV210/S5PC110"
753 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900754 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900755 select GENERIC_GPIO
756 select HAVE_CLK
757 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900758 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900759 select GENERIC_CLOCKEVENTS
760 select HAVE_SCHED_CLOCK
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
Kukjin Kim170f4e42010-02-24 16:40:44 +0900764 help
765 Samsung S5PV210/S5PC110 series based systems
766
Kukjin Kim10606aa2011-02-14 15:05:27 +0900767config ARCH_EXYNOS4
768 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900769 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900770 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900771 select GENERIC_GPIO
772 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900773 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900774 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900775 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900776 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900777 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900778 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900779 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781config ARCH_SHARK
782 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000783 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100784 select ISA
785 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100786 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100787 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000788 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000789 help
790 Support for the StrongARM based Digital DNARD machine, also known
791 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Hans J. Koch83ef3332010-09-17 18:13:56 +0200793config ARCH_TCC_926
794 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100795 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200796 select CPU_ARM926T
797 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100798 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200799 select GENERIC_CLOCKEVENTS
800 help
801 Support for Telechips TCC ARM926-based systems.
802
Linus Walleijd98aac72009-04-27 10:21:46 +0100803config ARCH_U300
804 bool "ST-Ericsson U300 Series"
805 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100806 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100807 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000808 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100809 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100810 select ARM_AMBA
811 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100812 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100813 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select GENERIC_GPIO
815 help
816 Support for ST-Ericsson U300 series mobile platforms.
817
Russell Kingccf50e22010-03-15 19:03:06 +0000818config ARCH_U8500
819 bool "ST-Ericsson U8500 Series"
820 select CPU_V7
821 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000822 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100823 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100824 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100825 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000826 help
827 Support for ST-Ericsson's Ux500 architecture
828
829config ARCH_NOMADIK
830 bool "STMicroelectronics Nomadik"
831 select ARM_AMBA
832 select ARM_VIC
833 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100834 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000835 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000836 select ARCH_REQUIRE_GPIOLIB
837 help
838 Support for the Nomadik platform by ST-Ericsson
839
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100840config ARCH_DAVINCI
841 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100842 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700843 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100844 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700845 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100846 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700847 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100848 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530849 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100850 help
851 Support for TI's DaVinci platform.
852
Russell King3b938be2007-05-12 11:25:44 +0100853config ARCH_OMAP
854 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700855 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700856 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100857 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700858 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000859 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800860 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100861 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200862 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100863
viresh kumarcee37e52010-04-01 12:31:05 +0100864config PLAT_SPEAR
865 bool "ST SPEAr"
866 select ARM_AMBA
867 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100868 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100869 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100870 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100871 select HAVE_CLK
872 help
873 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
874
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100875config ARCH_VT8500
876 bool "VIA/WonderMedia 85xx"
877 select CPU_ARM926T
878 select GENERIC_GPIO
879 select ARCH_HAS_CPUFREQ
880 select GENERIC_CLOCKEVENTS
881 select ARCH_REQUIRE_GPIOLIB
882 select HAVE_PWM
883 help
884 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885endchoice
886
Russell Kingccf50e22010-03-15 19:03:06 +0000887#
888# This is sorted alphabetically by mach-* pathname. However, plat-*
889# Kconfigs may be included either alphabetically (according to the
890# plat- suffix) or along side the corresponding mach-* source.
891#
Russell King95b8f202010-01-14 11:43:54 +0000892source "arch/arm/mach-at91/Kconfig"
893
894source "arch/arm/mach-bcmring/Kconfig"
895
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896source "arch/arm/mach-clps711x/Kconfig"
897
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300898source "arch/arm/mach-cns3xxx/Kconfig"
899
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-davinci/Kconfig"
901
902source "arch/arm/mach-dove/Kconfig"
903
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000904source "arch/arm/mach-ep93xx/Kconfig"
905
Linus Torvalds1da177e2005-04-16 15:20:36 -0700906source "arch/arm/mach-footbridge/Kconfig"
907
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200908source "arch/arm/mach-gemini/Kconfig"
909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/mach-h720x/Kconfig"
911
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912source "arch/arm/mach-integrator/Kconfig"
913
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100914source "arch/arm/mach-iop32x/Kconfig"
915
916source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917
Dan Williams285f5fa2006-12-07 02:59:39 +0100918source "arch/arm/mach-iop13xx/Kconfig"
919
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920source "arch/arm/mach-ixp4xx/Kconfig"
921
922source "arch/arm/mach-ixp2000/Kconfig"
923
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100924source "arch/arm/mach-ixp23xx/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-kirkwood/Kconfig"
927
928source "arch/arm/mach-ks8695/Kconfig"
929
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200930source "arch/arm/mach-loki/Kconfig"
931
Kevin Wells40805942010-07-27 08:49:04 -0700932source "arch/arm/mach-lpc32xx/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/mach-msm/Kconfig"
935
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200936source "arch/arm/mach-mv78xx0/Kconfig"
937
Russell King95b8f202010-01-14 11:43:54 +0000938source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800940source "arch/arm/mach-mxs/Kconfig"
941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800943
Russell King95b8f202010-01-14 11:43:54 +0000944source "arch/arm/mach-nomadik/Kconfig"
945source "arch/arm/plat-nomadik/Kconfig"
946
Russell Kingd91a89102010-02-04 18:13:17 +0000947source "arch/arm/mach-nuc93x/Kconfig"
948
Tony Lindgrend48af152005-07-10 19:58:17 +0100949source "arch/arm/plat-omap/Kconfig"
950
951source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952
Tony Lindgren1dbae812005-11-10 14:26:51 +0000953source "arch/arm/mach-omap2/Kconfig"
954
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400955source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-pxa/Kconfig"
958source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-mmp/Kconfig"
961
962source "arch/arm/mach-realview/Kconfig"
963
964source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300965
Ben Dookscf383672009-11-10 00:14:58 +0000966source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100967source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900968source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969
viresh kumarcee37e52010-04-01 12:31:05 +0100970source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100971
Hans J. Koch83ef3332010-09-17 18:13:56 +0200972source "arch/arm/plat-tcc/Kconfig"
973
Ben Dooksa21765a2007-02-11 18:31:01 +0100974if ARCH_S3C2410
975source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100977source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900978source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100980source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982
Ben Dooksa08ab632008-10-21 14:06:39 +0100983if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900984source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100985endif
986
Kukjin Kim49b7a492010-09-07 15:47:18 +0900987source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900988
Byungho Min5a7652f2009-06-23 21:39:42 +0900989source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900990
Kukjin Kim170f4e42010-02-24 16:40:44 +0900991source "arch/arm/mach-s5pv210/Kconfig"
992
Kukjin Kim10606aa2011-02-14 15:05:27 +0900993source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900994
Russell King882d01f2010-03-02 23:40:15 +0000995source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996
Erik Gillingc5f80062010-01-21 16:53:02 -0800997source "arch/arm/mach-tegra/Kconfig"
998
Russell King95b8f202010-01-14 11:43:54 +0000999source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
1003source "arch/arm/mach-versatile/Kconfig"
1004
Russell Kingceade892010-02-11 21:44:53 +00001005source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001006source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001007
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001008source "arch/arm/mach-vt8500/Kconfig"
1009
wanzongshun7ec80dd2008-12-03 03:55:38 +01001010source "arch/arm/mach-w90x900/Kconfig"
1011
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012# Definitions to make life easier
1013config ARCH_ACORN
1014 bool
1015
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001016config PLAT_IOP
1017 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001018 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001019 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001020
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001021config PLAT_ORION
1022 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001023 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001024 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001025 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001026
Eric Miaobd5ce432009-01-20 12:06:01 +08001027config PLAT_PXA
1028 bool
1029
Russell Kingf4b8b312010-01-14 12:48:06 +00001030config PLAT_VERSATILE
1031 bool
1032
Russell Kinge3887712010-01-14 13:30:16 +00001033config ARM_TIMER_SP804
1034 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001035 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001036
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037source arch/arm/mm/Kconfig
1038
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001039config IWMMXT
1040 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001041 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1042 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001043 help
1044 Enable support for iWMMXt context switching at run time if
1045 running on a CPU that supports it.
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1048config XSCALE_PMU
1049 bool
1050 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1051 default y
1052
Jamie Iles0f4f0672010-02-02 20:23:15 +01001053config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001054 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001055 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001056 default y
1057 bool
1058
eric miao52108642010-12-13 09:42:34 +01001059config MULTI_IRQ_HANDLER
1060 bool
1061 help
1062 Allow each machine to specify it's own IRQ handler at run time.
1063
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001064if !MMU
1065source "arch/arm/Kconfig-nommu"
1066endif
1067
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001068config ARM_ERRATA_411920
1069 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001070 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001071 help
1072 Invalidation of the Instruction Cache operation can
1073 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1074 It does not affect the MPCore. This option enables the ARM Ltd.
1075 recommended workaround.
1076
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001077config ARM_ERRATA_430973
1078 bool "ARM errata: Stale prediction on replaced interworking branch"
1079 depends on CPU_V7
1080 help
1081 This option enables the workaround for the 430973 Cortex-A8
1082 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1083 interworking branch is replaced with another code sequence at the
1084 same virtual address, whether due to self-modifying code or virtual
1085 to physical address re-mapping, Cortex-A8 does not recover from the
1086 stale interworking branch prediction. This results in Cortex-A8
1087 executing the new code sequence in the incorrect ARM or Thumb state.
1088 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1089 and also flushes the branch target cache at every context switch.
1090 Note that setting specific bits in the ACTLR register may not be
1091 available in non-secure mode.
1092
Catalin Marinas855c5512009-04-30 17:06:15 +01001093config ARM_ERRATA_458693
1094 bool "ARM errata: Processor deadlock when a false hazard is created"
1095 depends on CPU_V7
1096 help
1097 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1098 erratum. For very specific sequences of memory operations, it is
1099 possible for a hazard condition intended for a cache line to instead
1100 be incorrectly associated with a different cache line. This false
1101 hazard might then cause a processor deadlock. The workaround enables
1102 the L1 caching of the NEON accesses and disables the PLD instruction
1103 in the ACTLR register. Note that setting specific bits in the ACTLR
1104 register may not be available in non-secure mode.
1105
Catalin Marinas0516e462009-04-30 17:06:20 +01001106config ARM_ERRATA_460075
1107 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1108 depends on CPU_V7
1109 help
1110 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1111 erratum. Any asynchronous access to the L2 cache may encounter a
1112 situation in which recent store transactions to the L2 cache are lost
1113 and overwritten with stale memory contents from external memory. The
1114 workaround disables the write-allocate mode for the L2 cache via the
1115 ACTLR register. Note that setting specific bits in the ACTLR register
1116 may not be available in non-secure mode.
1117
Will Deacon9f050272010-09-14 09:51:43 +01001118config ARM_ERRATA_742230
1119 bool "ARM errata: DMB operation may be faulty"
1120 depends on CPU_V7 && SMP
1121 help
1122 This option enables the workaround for the 742230 Cortex-A9
1123 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1124 between two write operations may not ensure the correct visibility
1125 ordering of the two writes. This workaround sets a specific bit in
1126 the diagnostic register of the Cortex-A9 which causes the DMB
1127 instruction to behave as a DSB, ensuring the correct behaviour of
1128 the two writes.
1129
Will Deacona672e992010-09-14 09:53:02 +01001130config ARM_ERRATA_742231
1131 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1132 depends on CPU_V7 && SMP
1133 help
1134 This option enables the workaround for the 742231 Cortex-A9
1135 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1136 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1137 accessing some data located in the same cache line, may get corrupted
1138 data due to bad handling of the address hazard when the line gets
1139 replaced from one of the CPUs at the same time as another CPU is
1140 accessing it. This workaround sets specific bits in the diagnostic
1141 register of the Cortex-A9 which reduces the linefill issuing
1142 capabilities of the processor.
1143
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001144config PL310_ERRATA_588369
1145 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001146 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001147 help
1148 The PL310 L2 cache controller implements three types of Clean &
1149 Invalidate maintenance operations: by Physical Address
1150 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1151 They are architecturally defined to behave as the execution of a
1152 clean operation followed immediately by an invalidate operation,
1153 both performing to the same memory location. This functionality
1154 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001155 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001156
1157config ARM_ERRATA_720789
1158 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1159 depends on CPU_V7 && SMP
1160 help
1161 This option enables the workaround for the 720789 Cortex-A9 (prior to
1162 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1163 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1164 As a consequence of this erratum, some TLB entries which should be
1165 invalidated are not, resulting in an incoherency in the system page
1166 tables. The workaround changes the TLB flushing routines to invalidate
1167 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001168
Russell King1f0090a2011-03-16 23:35:25 +00001169config PL310_ERRATA_727915
1170 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1171 depends on CACHE_L2X0
1172 help
1173 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1174 operation (offset 0x7FC). This operation runs in background so that
1175 PL310 can handle normal accesses while it is in progress. Under very
1176 rare circumstances, due to this erratum, write data can be lost when
1177 PL310 treats a cacheable write transaction during a Clean &
1178 Invalidate by Way operation.
1179
Will Deacon475d92f2010-09-28 14:02:02 +01001180config ARM_ERRATA_743622
1181 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1182 depends on CPU_V7
1183 help
1184 This option enables the workaround for the 743622 Cortex-A9
1185 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1186 optimisation in the Cortex-A9 Store Buffer may lead to data
1187 corruption. This workaround sets a specific bit in the diagnostic
1188 register of the Cortex-A9 which disables the Store Buffer
1189 optimisation, preventing the defect from occurring. This has no
1190 visible impact on the overall performance or power consumption of the
1191 processor.
1192
Will Deacon9a27c272011-02-18 16:36:35 +01001193config ARM_ERRATA_751472
1194 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1195 depends on CPU_V7 && SMP
1196 help
1197 This option enables the workaround for the 751472 Cortex-A9 (prior
1198 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1199 completion of a following broadcasted operation if the second
1200 operation is received by a CPU before the ICIALLUIS has completed,
1201 potentially leading to corrupted entries in the cache or TLB.
1202
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001203config ARM_ERRATA_753970
1204 bool "ARM errata: cache sync operation may be faulty"
1205 depends on CACHE_PL310
1206 help
1207 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1208
1209 Under some condition the effect of cache sync operation on
1210 the store buffer still remains when the operation completes.
1211 This means that the store buffer is always asked to drain and
1212 this prevents it from merging any further writes. The workaround
1213 is to replace the normal offset of cache sync operation (0x730)
1214 by another offset targeting an unmapped PL310 register 0x740.
1215 This has the same effect as the cache sync operation: store buffer
1216 drain and waiting for all buffers empty.
1217
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001218config ARM_ERRATA_754322
1219 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1220 depends on CPU_V7
1221 help
1222 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1223 r3p*) erratum. A speculative memory access may cause a page table walk
1224 which starts prior to an ASID switch but completes afterwards. This
1225 can populate the micro-TLB with a stale entry which may be hit with
1226 the new ASID. This workaround places two dsb instructions in the mm
1227 switching code so that no page table walks can cross the ASID switch.
1228
Will Deacon5dab26af2011-03-04 12:38:54 +01001229config ARM_ERRATA_754327
1230 bool "ARM errata: no automatic Store Buffer drain"
1231 depends on CPU_V7 && SMP
1232 help
1233 This option enables the workaround for the 754327 Cortex-A9 (prior to
1234 r2p0) erratum. The Store Buffer does not have any automatic draining
1235 mechanism and therefore a livelock may occur if an external agent
1236 continuously polls a memory location waiting to observe an update.
1237 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1238 written polling loops from denying visibility of updates to memory.
1239
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240endmenu
1241
1242source "arch/arm/common/Kconfig"
1243
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244menu "Bus support"
1245
1246config ARM_AMBA
1247 bool
1248
1249config ISA
1250 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251 help
1252 Find out whether you have ISA slots on your motherboard. ISA is the
1253 name of a bus system, i.e. the way the CPU talks to the other stuff
1254 inside your box. Other bus systems are PCI, EISA, MicroChannel
1255 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1256 newer boards don't support it. If you have ISA, say Y, otherwise N.
1257
Russell King065909b2006-01-04 15:44:16 +00001258# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259config ISA_DMA
1260 bool
Russell King065909b2006-01-04 15:44:16 +00001261 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262
Russell King065909b2006-01-04 15:44:16 +00001263# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001264config ISA_DMA_API
1265 bool
Al Viro5cae8412005-05-04 05:39:22 +01001266
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001268 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 help
1270 Find out whether you have a PCI motherboard. PCI is the name of a
1271 bus system, i.e. the way the CPU talks to the other stuff inside
1272 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1273 VESA. If you have PCI, say Y, otherwise N.
1274
Anton Vorontsov52882172010-04-19 13:20:49 +01001275config PCI_DOMAINS
1276 bool
1277 depends on PCI
1278
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001279config PCI_NANOENGINE
1280 bool "BSE nanoEngine PCI support"
1281 depends on SA1100_NANOENGINE
1282 help
1283 Enable PCI on the BSE nanoEngine board.
1284
Matthew Wilcox36e23592007-07-10 10:54:40 -06001285config PCI_SYSCALL
1286 def_bool PCI
1287
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288# Select the host bridge type
1289config PCI_HOST_VIA82C505
1290 bool
1291 depends on PCI && ARCH_SHARK
1292 default y
1293
Mike Rapoporta0113a92007-11-25 08:55:34 +01001294config PCI_HOST_ITE8152
1295 bool
1296 depends on PCI && MACH_ARMCORE
1297 default y
1298 select DMABOUNCE
1299
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300source "drivers/pci/Kconfig"
1301
1302source "drivers/pcmcia/Kconfig"
1303
1304endmenu
1305
1306menu "Kernel Features"
1307
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001308source "kernel/time/Kconfig"
1309
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001311 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001312 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001313 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001314 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001315 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001316 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001317 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001318 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001319 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320 help
1321 This enables support for systems with more than one CPU. If you have
1322 a system with only one CPU, like most personal computers, say N. If
1323 you have a system with more than one CPU, say Y.
1324
1325 If you say N here, the kernel will run on single and multiprocessor
1326 machines, but will use only one CPU of a multiprocessor machine. If
1327 you say Y here, the kernel will run on many, but not all, single
1328 processor machines. On a single processor machine, the kernel will
1329 run faster if you say N here.
1330
Adrian Bunk03502fa2008-02-03 15:50:21 +02001331 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001333 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334
1335 If you don't know what to do here, say N.
1336
Russell Kingf00ec482010-09-04 10:47:48 +01001337config SMP_ON_UP
1338 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1339 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001340 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001341 default y
1342 help
1343 SMP kernels contain instructions which fail on non-SMP processors.
1344 Enabling this option allows the kernel to modify itself to make
1345 these instructions safe. Disabling it allows about 1K of space
1346 savings.
1347
1348 If you don't know what to do here, say Y.
1349
Russell Kinga8cbcd92009-05-16 11:51:14 +01001350config HAVE_ARM_SCU
1351 bool
1352 depends on SMP
1353 help
1354 This option enables support for the ARM system coherency unit
1355
Russell Kingf32f4ce2009-05-16 12:14:21 +01001356config HAVE_ARM_TWD
1357 bool
1358 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001359 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001360 help
1361 This options enables support for the ARM timer and watchdog unit
1362
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001363choice
1364 prompt "Memory split"
1365 default VMSPLIT_3G
1366 help
1367 Select the desired split between kernel and user memory.
1368
1369 If you are not absolutely sure what you are doing, leave this
1370 option alone!
1371
1372 config VMSPLIT_3G
1373 bool "3G/1G user/kernel split"
1374 config VMSPLIT_2G
1375 bool "2G/2G user/kernel split"
1376 config VMSPLIT_1G
1377 bool "1G/3G user/kernel split"
1378endchoice
1379
1380config PAGE_OFFSET
1381 hex
1382 default 0x40000000 if VMSPLIT_1G
1383 default 0x80000000 if VMSPLIT_2G
1384 default 0xC0000000
1385
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386config NR_CPUS
1387 int "Maximum number of CPUs (2-32)"
1388 range 2 32
1389 depends on SMP
1390 default "4"
1391
Russell Kinga054a812005-11-02 22:24:33 +00001392config HOTPLUG_CPU
1393 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1394 depends on SMP && HOTPLUG && EXPERIMENTAL
1395 help
1396 Say Y here to experiment with turning CPUs off and on. CPUs
1397 can be controlled through /sys/devices/system/cpu.
1398
Russell King37ee16a2005-11-08 19:08:05 +00001399config LOCAL_TIMERS
1400 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001401 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001402 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001403 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001404 help
1405 Enable support for local timers on SMP platforms, rather then the
1406 legacy IPI broadcast method. Local timers allows the system
1407 accounting to be spread across the timer interval, preventing a
1408 "thundering herd" at every timer tick.
1409
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001410source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411
Russell Kingf8065812006-03-02 22:41:59 +00001412config HZ
1413 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001414 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001415 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001416 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001417 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001418 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001419 default 100
1420
Catalin Marinas16c79652009-07-24 12:33:02 +01001421config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001422 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001423 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001424 select AEABI
1425 select ARM_ASM_UNIFIED
1426 help
1427 By enabling this option, the kernel will be compiled in
1428 Thumb-2 mode. A compiler/assembler that understand the unified
1429 ARM-Thumb syntax is needed.
1430
1431 If unsure, say N.
1432
Dave Martin6f685c52011-03-03 11:41:12 +01001433config THUMB2_AVOID_R_ARM_THM_JUMP11
1434 bool "Work around buggy Thumb-2 short branch relocations in gas"
1435 depends on THUMB2_KERNEL && MODULES
1436 default y
1437 help
1438 Various binutils versions can resolve Thumb-2 branches to
1439 locally-defined, preemptible global symbols as short-range "b.n"
1440 branch instructions.
1441
1442 This is a problem, because there's no guarantee the final
1443 destination of the symbol, or any candidate locations for a
1444 trampoline, are within range of the branch. For this reason, the
1445 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1446 relocation in modules at all, and it makes little sense to add
1447 support.
1448
1449 The symptom is that the kernel fails with an "unsupported
1450 relocation" error when loading some modules.
1451
1452 Until fixed tools are available, passing
1453 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1454 code which hits this problem, at the cost of a bit of extra runtime
1455 stack usage in some cases.
1456
1457 The problem is described in more detail at:
1458 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1459
1460 Only Thumb-2 kernels are affected.
1461
1462 Unless you are sure your tools don't have this problem, say Y.
1463
Catalin Marinas0becb082009-07-24 12:32:53 +01001464config ARM_ASM_UNIFIED
1465 bool
1466
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001467config AEABI
1468 bool "Use the ARM EABI to compile the kernel"
1469 help
1470 This option allows for the kernel to be compiled using the latest
1471 ARM ABI (aka EABI). This is only useful if you are using a user
1472 space environment that is also compiled with EABI.
1473
1474 Since there are major incompatibilities between the legacy ABI and
1475 EABI, especially with regard to structure member alignment, this
1476 option also changes the kernel syscall calling convention to
1477 disambiguate both ABIs and allow for backward compatibility support
1478 (selected with CONFIG_OABI_COMPAT).
1479
1480 To use this you need GCC version 4.0.0 or later.
1481
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001482config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001483 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001484 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001485 default y
1486 help
1487 This option preserves the old syscall interface along with the
1488 new (ARM EABI) one. It also provides a compatibility layer to
1489 intercept syscalls that have structure arguments which layout
1490 in memory differs between the legacy ABI and the new ARM EABI
1491 (only for non "thumb" binaries). This option adds a tiny
1492 overhead to all syscalls and produces a slightly larger kernel.
1493 If you know you'll be using only pure EABI user space then you
1494 can say N here. If this option is not selected and you attempt
1495 to execute a legacy ABI binary then the result will be
1496 UNPREDICTABLE (in fact it can be predicted that it won't work
1497 at all). If in doubt say Y.
1498
Mel Gormaneb335752009-05-13 17:34:48 +01001499config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001500 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001501
Russell King05944d72006-11-30 20:43:51 +00001502config ARCH_SPARSEMEM_ENABLE
1503 bool
1504
Russell King07a2f732008-10-01 21:39:58 +01001505config ARCH_SPARSEMEM_DEFAULT
1506 def_bool ARCH_SPARSEMEM_ENABLE
1507
Russell King05944d72006-11-30 20:43:51 +00001508config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001509 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001510
Will Deacon7b7bf492011-05-19 13:21:14 +01001511config HAVE_ARCH_PFN_VALID
1512 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1513
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001514config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001515 bool "High Memory Support"
1516 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001517 help
1518 The address space of ARM processors is only 4 Gigabytes large
1519 and it has to accommodate user address space, kernel address
1520 space as well as some memory mapped IO. That means that, if you
1521 have a large amount of physical memory and/or IO, not all of the
1522 memory can be "permanently mapped" by the kernel. The physical
1523 memory that is not permanently mapped is called "high memory".
1524
1525 Depending on the selected kernel/user memory split, minimum
1526 vmalloc space and actual amount of RAM, you may not need this
1527 option which should result in a slightly faster kernel.
1528
1529 If unsure, say n.
1530
Russell King65cec8e2009-08-17 20:02:06 +01001531config HIGHPTE
1532 bool "Allocate 2nd-level pagetables from highmem"
1533 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001534
Jamie Iles1b8873a2010-02-02 20:25:44 +01001535config HW_PERF_EVENTS
1536 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001537 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001538 default y
1539 help
1540 Enable hardware performance counter support for perf events. If
1541 disabled, perf events will use software events only.
1542
Dave Hansen3f22ab22005-06-23 00:07:43 -07001543source "mm/Kconfig"
1544
Magnus Dammc1b2d972010-07-05 10:00:11 +01001545config FORCE_MAX_ZONEORDER
1546 int "Maximum zone order" if ARCH_SHMOBILE
1547 range 11 64 if ARCH_SHMOBILE
1548 default "9" if SA1111
1549 default "11"
1550 help
1551 The kernel memory allocator divides physically contiguous memory
1552 blocks into "zones", where each zone is a power of two number of
1553 pages. This option selects the largest power of two that the kernel
1554 keeps in the memory allocator. If you need to allocate very large
1555 blocks of physically contiguous memory, then you may need to
1556 increase this value.
1557
1558 This config option is actually maximum order plus one. For example,
1559 a value of 11 means that the largest free memory block is 2^10 pages.
1560
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561config LEDS
1562 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001563 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001564 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001565 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1566 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001567 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001568 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001569 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570 help
1571 If you say Y here, the LEDs on your machine will be used
1572 to provide useful information about your current system status.
1573
1574 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1575 be able to select which LEDs are active using the options below. If
1576 you are compiling a kernel for the EBSA-110 or the LART however, the
1577 red LED will simply flash regularly to indicate that the system is
1578 still functional. It is safe to say Y here if you have a CATS
1579 system, but the driver will do nothing.
1580
1581config LEDS_TIMER
1582 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001583 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1584 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001586 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 default y if ARCH_EBSA110
1588 help
1589 If you say Y here, one of the system LEDs (the green one on the
1590 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1591 will flash regularly to indicate that the system is still
1592 operational. This is mainly useful to kernel hackers who are
1593 debugging unstable kernels.
1594
1595 The LART uses the same LED for both Timer LED and CPU usage LED
1596 functions. You may choose to use both, but the Timer LED function
1597 will overrule the CPU usage LED.
1598
1599config LEDS_CPU
1600 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001601 !ARCH_OMAP) \
1602 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1603 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001604 depends on LEDS
1605 help
1606 If you say Y here, the red LED will be used to give a good real
1607 time indication of CPU usage, by lighting whenever the idle task
1608 is not currently executing.
1609
1610 The LART uses the same LED for both Timer LED and CPU usage LED
1611 functions. You may choose to use both, but the Timer LED function
1612 will overrule the CPU usage LED.
1613
1614config ALIGNMENT_TRAP
1615 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001616 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001618 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001620 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1622 address divisible by 4. On 32-bit ARM processors, these non-aligned
1623 fetch/store instructions will be emulated in software if you say
1624 here, which has a severe performance impact. This is necessary for
1625 correct operation of some network protocols. With an IP-only
1626 configuration it is safe to say N, otherwise say Y.
1627
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001628config UACCESS_WITH_MEMCPY
1629 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1630 depends on MMU && EXPERIMENTAL
1631 default y if CPU_FEROCEON
1632 help
1633 Implement faster copy_to_user and clear_user methods for CPU
1634 cores where a 8-word STM instruction give significantly higher
1635 memory write throughput than a sequence of individual 32bit stores.
1636
1637 A possible side effect is a slight increase in scheduling latency
1638 between threads sharing the same address space if they invoke
1639 such copy operations with large buffers.
1640
1641 However, if the CPU data cache is using a write-allocate mode,
1642 this option is unlikely to provide any performance gain.
1643
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001644config SECCOMP
1645 bool
1646 prompt "Enable seccomp to safely compute untrusted bytecode"
1647 ---help---
1648 This kernel feature is useful for number crunching applications
1649 that may need to compute untrusted bytecode during their
1650 execution. By using pipes or other transports made available to
1651 the process as file descriptors supporting the read/write
1652 syscalls, it's possible to isolate those applications in
1653 their own address space using seccomp. Once seccomp is
1654 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1655 and the task is only allowed to execute a few safe syscalls
1656 defined by each seccomp mode.
1657
Nicolas Pitrec743f382010-05-24 23:55:42 -04001658config CC_STACKPROTECTOR
1659 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001660 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001661 help
1662 This option turns on the -fstack-protector GCC feature. This
1663 feature puts, at the beginning of functions, a canary value on
1664 the stack just before the return address, and validates
1665 the value just before actually returning. Stack based buffer
1666 overflows (that need to overwrite this return address) now also
1667 overwrite the canary, which gets detected and the attack is then
1668 neutralized via a kernel panic.
1669 This feature requires gcc version 4.2 or above.
1670
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001671config DEPRECATED_PARAM_STRUCT
1672 bool "Provide old way to pass kernel parameters"
1673 help
1674 This was deprecated in 2001 and announced to live on for 5 years.
1675 Some old boot loaders still use this way.
1676
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677endmenu
1678
1679menu "Boot options"
1680
Grant Likely9eb8f672011-04-28 14:27:20 -06001681config USE_OF
1682 bool "Flattened Device Tree support"
1683 select OF
1684 select OF_EARLY_FLATTREE
1685 help
1686 Include support for flattened device tree machine descriptions.
1687
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688# Compressed boot loader in ROM. Yes, we really want to ask about
1689# TEXT and BSS so we preserve their values in the config files.
1690config ZBOOT_ROM_TEXT
1691 hex "Compressed ROM boot loader base address"
1692 default "0"
1693 help
1694 The physical address at which the ROM-able zImage is to be
1695 placed in the target. Platforms which normally make use of
1696 ROM-able zImage formats normally set this to a suitable
1697 value in their defconfig file.
1698
1699 If ZBOOT_ROM is not enabled, this has no effect.
1700
1701config ZBOOT_ROM_BSS
1702 hex "Compressed ROM boot loader BSS address"
1703 default "0"
1704 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001705 The base address of an area of read/write memory in the target
1706 for the ROM-able zImage which must be available while the
1707 decompressor is running. It must be large enough to hold the
1708 entire decompressed kernel plus an additional 128 KiB.
1709 Platforms which normally make use of ROM-able zImage formats
1710 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711
1712 If ZBOOT_ROM is not enabled, this has no effect.
1713
1714config ZBOOT_ROM
1715 bool "Compressed boot loader in ROM/flash"
1716 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1717 help
1718 Say Y here if you intend to execute your compressed kernel image
1719 (zImage) directly from ROM or flash. If unsure, say N.
1720
Simon Hormanf45b1142011-01-11 04:01:08 +01001721config ZBOOT_ROM_MMCIF
1722 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1723 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1724 help
1725 Say Y here to include experimental MMCIF loading code in the
1726 ROM-able zImage. With this enabled it is possible to write the
1727 the ROM-able zImage kernel image to an MMC card and boot the
1728 kernel straight from the reset vector. At reset the processor
1729 Mask ROM will load the first part of the the ROM-able zImage
1730 which in turn loads the rest the kernel image to RAM using the
1731 MMCIF hardware block.
1732
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733config CMDLINE
1734 string "Default kernel command string"
1735 default ""
1736 help
1737 On some architectures (EBSA110 and CATS), there is currently no way
1738 for the boot loader to pass arguments to the kernel. For these
1739 architectures, you should supply some command-line options at build
1740 time by entering them here. As a minimum, you should specify the
1741 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1742
Victor Boivie4394c122011-05-04 17:07:55 +01001743choice
1744 prompt "Kernel command line type" if CMDLINE != ""
1745 default CMDLINE_FROM_BOOTLOADER
1746
1747config CMDLINE_FROM_BOOTLOADER
1748 bool "Use bootloader kernel arguments if available"
1749 help
1750 Uses the command-line options passed by the boot loader. If
1751 the boot loader doesn't provide any, the default kernel command
1752 string provided in CMDLINE will be used.
1753
1754config CMDLINE_EXTEND
1755 bool "Extend bootloader kernel arguments"
1756 help
1757 The command-line arguments provided by the boot loader will be
1758 appended to the default kernel command string.
1759
Alexander Holler92d20402010-02-16 19:04:53 +01001760config CMDLINE_FORCE
1761 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001762 help
1763 Always use the default kernel command string, even if the boot
1764 loader passes other arguments to the kernel.
1765 This is useful if you cannot or don't want to change the
1766 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001767endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001768
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769config XIP_KERNEL
1770 bool "Kernel Execute-In-Place from ROM"
1771 depends on !ZBOOT_ROM
1772 help
1773 Execute-In-Place allows the kernel to run from non-volatile storage
1774 directly addressable by the CPU, such as NOR flash. This saves RAM
1775 space since the text section of the kernel is not loaded from flash
1776 to RAM. Read-write sections, such as the data section and stack,
1777 are still copied to RAM. The XIP kernel is not compressed since
1778 it has to run directly from flash, so it will take more space to
1779 store it. The flash address used to link the kernel object files,
1780 and for storing it, is configuration dependent. Therefore, if you
1781 say Y here, you must know the proper physical address where to
1782 store the kernel image depending on your own flash memory usage.
1783
1784 Also note that the make target becomes "make xipImage" rather than
1785 "make zImage" or "make Image". The final kernel binary to put in
1786 ROM memory will be arch/arm/boot/xipImage.
1787
1788 If unsure, say N.
1789
1790config XIP_PHYS_ADDR
1791 hex "XIP Kernel Physical Location"
1792 depends on XIP_KERNEL
1793 default "0x00080000"
1794 help
1795 This is the physical address in your flash memory the kernel will
1796 be linked for and stored to. This address is dependent on your
1797 own flash usage.
1798
Richard Purdiec587e4a2007-02-06 21:29:00 +01001799config KEXEC
1800 bool "Kexec system call (EXPERIMENTAL)"
1801 depends on EXPERIMENTAL
1802 help
1803 kexec is a system call that implements the ability to shutdown your
1804 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001805 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001806 you can start any kernel with it, not just Linux.
1807
1808 It is an ongoing process to be certain the hardware in a machine
1809 is properly shutdown, so do not be surprised if this code does not
1810 initially work for you. It may help to enable device hotplugging
1811 support.
1812
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001813config ATAGS_PROC
1814 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001815 depends on KEXEC
1816 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001817 help
1818 Should the atags used to boot the kernel be exported in an "atags"
1819 file in procfs. Useful with kexec.
1820
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001821config CRASH_DUMP
1822 bool "Build kdump crash kernel (EXPERIMENTAL)"
1823 depends on EXPERIMENTAL
1824 help
1825 Generate crash dump after being started by kexec. This should
1826 be normally only set in special crash dump kernels which are
1827 loaded in the main kernel with kexec-tools into a specially
1828 reserved region and then later executed after a crash by
1829 kdump/kexec. The crash dump kernel must be compiled to a
1830 memory address not used by the main kernel
1831
1832 For more details see Documentation/kdump/kdump.txt
1833
Eric Miaoe69edc792010-07-05 15:56:50 +02001834config AUTO_ZRELADDR
1835 bool "Auto calculation of the decompressed kernel image address"
1836 depends on !ZBOOT_ROM && !ARCH_U300
1837 help
1838 ZRELADDR is the physical address where the decompressed kernel
1839 image will be placed. If AUTO_ZRELADDR is selected, the address
1840 will be determined at run-time by masking the current IP with
1841 0xf8000000. This assumes the zImage being placed in the first 128MB
1842 from start of memory.
1843
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844endmenu
1845
Russell Kingac9d7ef2008-08-18 17:26:00 +01001846menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847
Ben Dooks89c52ed2009-07-30 23:23:24 +01001848if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849
1850source "drivers/cpufreq/Kconfig"
1851
Yong Shen64f102b2010-10-21 21:18:59 +08001852config CPU_FREQ_IMX
1853 tristate "CPUfreq driver for i.MX CPUs"
1854 depends on ARCH_MXC && CPU_FREQ
1855 help
1856 This enables the CPUfreq driver for i.MX CPUs.
1857
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858config CPU_FREQ_SA1100
1859 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001860
1861config CPU_FREQ_SA1110
1862 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863
1864config CPU_FREQ_INTEGRATOR
1865 tristate "CPUfreq driver for ARM Integrator CPUs"
1866 depends on ARCH_INTEGRATOR && CPU_FREQ
1867 default y
1868 help
1869 This enables the CPUfreq driver for ARM Integrator CPUs.
1870
1871 For details, take a look at <file:Documentation/cpu-freq>.
1872
1873 If in doubt, say Y.
1874
Russell King9e2697f2007-12-14 13:30:14 +00001875config CPU_FREQ_PXA
1876 bool
1877 depends on CPU_FREQ && ARCH_PXA && PXA25x
1878 default y
1879 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1880
Mark Brownb3748dd2009-06-15 11:23:20 +01001881config CPU_FREQ_S3C64XX
1882 bool "CPUfreq support for Samsung S3C64XX CPUs"
1883 depends on CPU_FREQ && CPU_S3C6410
1884
Ben Dooks9d56c022009-07-30 23:23:25 +01001885config CPU_FREQ_S3C
1886 bool
1887 help
1888 Internal configuration node for common cpufreq on Samsung SoC
1889
1890config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001891 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001892 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1893 select CPU_FREQ_S3C
1894 help
1895 This enables the CPUfreq driver for the Samsung S3C24XX family
1896 of CPUs.
1897
1898 For details, take a look at <file:Documentation/cpu-freq>.
1899
1900 If in doubt, say N.
1901
1902config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001903 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001904 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1905 help
1906 Compile in support for changing the PLL frequency from the
1907 S3C24XX series CPUfreq driver. The PLL takes time to settle
1908 after a frequency change, so by default it is not enabled.
1909
1910 This also means that the PLL tables for the selected CPU(s) will
1911 be built which may increase the size of the kernel image.
1912
1913config CPU_FREQ_S3C24XX_DEBUG
1914 bool "Debug CPUfreq Samsung driver core"
1915 depends on CPU_FREQ_S3C24XX
1916 help
1917 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1918
1919config CPU_FREQ_S3C24XX_IODEBUG
1920 bool "Debug CPUfreq Samsung driver IO timing"
1921 depends on CPU_FREQ_S3C24XX
1922 help
1923 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1924
Ben Dookse6d197a2009-07-30 23:23:42 +01001925config CPU_FREQ_S3C24XX_DEBUGFS
1926 bool "Export debugfs for CPUFreq"
1927 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1928 help
1929 Export status information via debugfs.
1930
Linus Torvalds1da177e2005-04-16 15:20:36 -07001931endif
1932
Russell Kingac9d7ef2008-08-18 17:26:00 +01001933source "drivers/cpuidle/Kconfig"
1934
1935endmenu
1936
Linus Torvalds1da177e2005-04-16 15:20:36 -07001937menu "Floating point emulation"
1938
1939comment "At least one emulation must be selected"
1940
1941config FPE_NWFPE
1942 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001943 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001944 ---help---
1945 Say Y to include the NWFPE floating point emulator in the kernel.
1946 This is necessary to run most binaries. Linux does not currently
1947 support floating point hardware so you need to say Y here even if
1948 your machine has an FPA or floating point co-processor podule.
1949
1950 You may say N here if you are going to load the Acorn FPEmulator
1951 early in the bootup.
1952
1953config FPE_NWFPE_XP
1954 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001955 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956 help
1957 Say Y to include 80-bit support in the kernel floating-point
1958 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1959 Note that gcc does not generate 80-bit operations by default,
1960 so in most cases this option only enlarges the size of the
1961 floating point emulator without any good reason.
1962
1963 You almost surely want to say N here.
1964
1965config FPE_FASTFPE
1966 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001967 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968 ---help---
1969 Say Y here to include the FAST floating point emulator in the kernel.
1970 This is an experimental much faster emulator which now also has full
1971 precision for the mantissa. It does not support any exceptions.
1972 It is very simple, and approximately 3-6 times faster than NWFPE.
1973
1974 It should be sufficient for most programs. It may be not suitable
1975 for scientific calculations, but you have to check this for yourself.
1976 If you do not feel you need a faster FP emulation you should better
1977 choose NWFPE.
1978
1979config VFP
1980 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001981 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001982 help
1983 Say Y to include VFP support code in the kernel. This is needed
1984 if your hardware includes a VFP unit.
1985
1986 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1987 release notes and additional status information.
1988
1989 Say N if your target does not have VFP hardware.
1990
Catalin Marinas25ebee02007-09-25 15:22:24 +01001991config VFPv3
1992 bool
1993 depends on VFP
1994 default y if CPU_V7
1995
Catalin Marinasb5872db2008-01-10 19:16:17 +01001996config NEON
1997 bool "Advanced SIMD (NEON) Extension support"
1998 depends on VFPv3 && CPU_V7
1999 help
2000 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2001 Extension.
2002
Linus Torvalds1da177e2005-04-16 15:20:36 -07002003endmenu
2004
2005menu "Userspace binary formats"
2006
2007source "fs/Kconfig.binfmt"
2008
2009config ARTHUR
2010 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002011 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002012 help
2013 Say Y here to include the kernel code necessary if you want to run
2014 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2015 experimental; if this sounds frightening, say N and sleep in peace.
2016 You can also say M here to compile this support as a module (which
2017 will be called arthur).
2018
2019endmenu
2020
2021menu "Power management options"
2022
Russell Kingeceab4a2005-11-15 11:31:41 +00002023source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024
Johannes Bergf4cb5702007-12-08 02:14:00 +01002025config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002026 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002027 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2028 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002029 def_bool y
2030
Linus Torvalds1da177e2005-04-16 15:20:36 -07002031endmenu
2032
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002033source "net/Kconfig"
2034
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002035source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036
2037source "fs/Kconfig"
2038
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039source "arch/arm/Kconfig.debug"
2040
2041source "security/Kconfig"
2042
2043source "crypto/Kconfig"
2044
2045source "lib/Kconfig"