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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
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900729 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900731 select GENERIC_CLOCKEVENTS
732 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900734 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900735 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900736 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
737 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900738
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200739config ARCH_S5PC100
740 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900741 select GENERIC_GPIO
742 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900743 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900744 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100745 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900746 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900748 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900749 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900750 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200751 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900752
Kukjin Kim170f4e42010-02-24 16:40:44 +0900753config ARCH_S5PV210
754 bool "Samsung S5PV210/S5PC110"
755 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900756 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900757 select GENERIC_GPIO
758 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900759 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900760 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900761 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900762 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900763 select GENERIC_CLOCKEVENTS
764 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900765 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900766 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900767 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900768 help
769 Samsung S5PV210/S5PC110 series based systems
770
Kukjin Kim10606aa2011-02-14 15:05:27 +0900771config ARCH_EXYNOS4
772 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900773 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900774 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900775 select GENERIC_GPIO
776 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900777 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900778 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900779 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900780 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900781 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900782 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900783 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900784 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900785
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786config ARCH_SHARK
787 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000788 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100789 select ISA
790 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100791 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100792 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000793 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000794 help
795 Support for the StrongARM based Digital DNARD machine, also known
796 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700797
Hans J. Koch83ef3332010-09-17 18:13:56 +0200798config ARCH_TCC_926
799 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100800 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200801 select CPU_ARM926T
802 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100803 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200804 select GENERIC_CLOCKEVENTS
805 help
806 Support for Telechips TCC ARM926-based systems.
807
Linus Walleijd98aac72009-04-27 10:21:46 +0100808config ARCH_U300
809 bool "ST-Ericsson U300 Series"
810 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100811 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100812 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000813 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100814 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100815 select ARM_AMBA
816 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100817 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100818 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select GENERIC_GPIO
820 help
821 Support for ST-Ericsson U300 series mobile platforms.
822
Russell Kingccf50e22010-03-15 19:03:06 +0000823config ARCH_U8500
824 bool "ST-Ericsson U8500 Series"
825 select CPU_V7
826 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000827 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100828 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100829 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100830 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000831 help
832 Support for ST-Ericsson's Ux500 architecture
833
834config ARCH_NOMADIK
835 bool "STMicroelectronics Nomadik"
836 select ARM_AMBA
837 select ARM_VIC
838 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100839 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000840 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000841 select ARCH_REQUIRE_GPIOLIB
842 help
843 Support for the Nomadik platform by ST-Ericsson
844
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100845config ARCH_DAVINCI
846 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100847 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700848 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100849 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700850 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100851 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700852 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100853 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530854 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100855 help
856 Support for TI's DaVinci platform.
857
Russell King3b938be2007-05-12 11:25:44 +0100858config ARCH_OMAP
859 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700860 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700861 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100862 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700863 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000864 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800865 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100866 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200867 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100868
viresh kumarcee37e52010-04-01 12:31:05 +0100869config PLAT_SPEAR
870 bool "ST SPEAr"
871 select ARM_AMBA
872 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100873 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100874 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100875 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100876 select HAVE_CLK
877 help
878 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
879
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100880config ARCH_VT8500
881 bool "VIA/WonderMedia 85xx"
882 select CPU_ARM926T
883 select GENERIC_GPIO
884 select ARCH_HAS_CPUFREQ
885 select GENERIC_CLOCKEVENTS
886 select ARCH_REQUIRE_GPIOLIB
887 select HAVE_PWM
888 help
889 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890endchoice
891
Russell Kingccf50e22010-03-15 19:03:06 +0000892#
893# This is sorted alphabetically by mach-* pathname. However, plat-*
894# Kconfigs may be included either alphabetically (according to the
895# plat- suffix) or along side the corresponding mach-* source.
896#
Russell King95b8f202010-01-14 11:43:54 +0000897source "arch/arm/mach-at91/Kconfig"
898
899source "arch/arm/mach-bcmring/Kconfig"
900
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901source "arch/arm/mach-clps711x/Kconfig"
902
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300903source "arch/arm/mach-cns3xxx/Kconfig"
904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-davinci/Kconfig"
906
907source "arch/arm/mach-dove/Kconfig"
908
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000909source "arch/arm/mach-ep93xx/Kconfig"
910
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911source "arch/arm/mach-footbridge/Kconfig"
912
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200913source "arch/arm/mach-gemini/Kconfig"
914
Russell King95b8f202010-01-14 11:43:54 +0000915source "arch/arm/mach-h720x/Kconfig"
916
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917source "arch/arm/mach-integrator/Kconfig"
918
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100919source "arch/arm/mach-iop32x/Kconfig"
920
921source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Dan Williams285f5fa2006-12-07 02:59:39 +0100923source "arch/arm/mach-iop13xx/Kconfig"
924
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925source "arch/arm/mach-ixp4xx/Kconfig"
926
927source "arch/arm/mach-ixp2000/Kconfig"
928
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100929source "arch/arm/mach-ixp23xx/Kconfig"
930
Russell King95b8f202010-01-14 11:43:54 +0000931source "arch/arm/mach-kirkwood/Kconfig"
932
933source "arch/arm/mach-ks8695/Kconfig"
934
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200935source "arch/arm/mach-loki/Kconfig"
936
Kevin Wells40805942010-07-27 08:49:04 -0700937source "arch/arm/mach-lpc32xx/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-msm/Kconfig"
940
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200941source "arch/arm/mach-mv78xx0/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800945source "arch/arm/mach-mxs/Kconfig"
946
Russell King95b8f202010-01-14 11:43:54 +0000947source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800948
Russell King95b8f202010-01-14 11:43:54 +0000949source "arch/arm/mach-nomadik/Kconfig"
950source "arch/arm/plat-nomadik/Kconfig"
951
Russell Kingd91a89102010-02-04 18:13:17 +0000952source "arch/arm/mach-nuc93x/Kconfig"
953
Tony Lindgrend48af152005-07-10 19:58:17 +0100954source "arch/arm/plat-omap/Kconfig"
955
956source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Tony Lindgren1dbae812005-11-10 14:26:51 +0000958source "arch/arm/mach-omap2/Kconfig"
959
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400960source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-pxa/Kconfig"
963source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
Russell King95b8f202010-01-14 11:43:54 +0000965source "arch/arm/mach-mmp/Kconfig"
966
967source "arch/arm/mach-realview/Kconfig"
968
969source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300970
Ben Dookscf383672009-11-10 00:14:58 +0000971source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100972source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900973source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100974
viresh kumarcee37e52010-04-01 12:31:05 +0100975source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100976
Hans J. Koch83ef3332010-09-17 18:13:56 +0200977source "arch/arm/plat-tcc/Kconfig"
978
Ben Dooksa21765a2007-02-11 18:31:01 +0100979if ARCH_S3C2410
980source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900983source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100984source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100985source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100986endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987
Ben Dooksa08ab632008-10-21 14:06:39 +0100988if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900989source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100990endif
991
Kukjin Kim49b7a492010-09-07 15:47:18 +0900992source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900993
Byungho Min5a7652f2009-06-23 21:39:42 +0900994source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900995
Kukjin Kim170f4e42010-02-24 16:40:44 +0900996source "arch/arm/mach-s5pv210/Kconfig"
997
Kukjin Kim10606aa2011-02-14 15:05:27 +0900998source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900999
Russell King882d01f2010-03-02 23:40:15 +00001000source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Erik Gillingc5f80062010-01-21 16:53:02 -08001002source "arch/arm/mach-tegra/Kconfig"
1003
Russell King95b8f202010-01-14 11:43:54 +00001004source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007
1008source "arch/arm/mach-versatile/Kconfig"
1009
Russell Kingceade892010-02-11 21:44:53 +00001010source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001011source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001012
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001013source "arch/arm/mach-vt8500/Kconfig"
1014
wanzongshun7ec80dd2008-12-03 03:55:38 +01001015source "arch/arm/mach-w90x900/Kconfig"
1016
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017# Definitions to make life easier
1018config ARCH_ACORN
1019 bool
1020
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001021config PLAT_IOP
1022 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001023 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001024 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001025
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001026config PLAT_ORION
1027 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001028 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001029 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001030 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001031
Eric Miaobd5ce432009-01-20 12:06:01 +08001032config PLAT_PXA
1033 bool
1034
Russell Kingf4b8b312010-01-14 12:48:06 +00001035config PLAT_VERSATILE
1036 bool
1037
Russell Kinge3887712010-01-14 13:30:16 +00001038config ARM_TIMER_SP804
1039 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001040 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001041
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042source arch/arm/mm/Kconfig
1043
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001044config IWMMXT
1045 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001046 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1047 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001048 help
1049 Enable support for iWMMXt context switching at run time if
1050 running on a CPU that supports it.
1051
Linus Torvalds1da177e2005-04-16 15:20:36 -07001052# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1053config XSCALE_PMU
1054 bool
1055 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1056 default y
1057
Jamie Iles0f4f0672010-02-02 20:23:15 +01001058config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001059 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001060 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001061 default y
1062 bool
1063
eric miao52108642010-12-13 09:42:34 +01001064config MULTI_IRQ_HANDLER
1065 bool
1066 help
1067 Allow each machine to specify it's own IRQ handler at run time.
1068
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001069if !MMU
1070source "arch/arm/Kconfig-nommu"
1071endif
1072
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001073config ARM_ERRATA_411920
1074 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001075 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001076 help
1077 Invalidation of the Instruction Cache operation can
1078 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1079 It does not affect the MPCore. This option enables the ARM Ltd.
1080 recommended workaround.
1081
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001082config ARM_ERRATA_430973
1083 bool "ARM errata: Stale prediction on replaced interworking branch"
1084 depends on CPU_V7
1085 help
1086 This option enables the workaround for the 430973 Cortex-A8
1087 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1088 interworking branch is replaced with another code sequence at the
1089 same virtual address, whether due to self-modifying code or virtual
1090 to physical address re-mapping, Cortex-A8 does not recover from the
1091 stale interworking branch prediction. This results in Cortex-A8
1092 executing the new code sequence in the incorrect ARM or Thumb state.
1093 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1094 and also flushes the branch target cache at every context switch.
1095 Note that setting specific bits in the ACTLR register may not be
1096 available in non-secure mode.
1097
Catalin Marinas855c5512009-04-30 17:06:15 +01001098config ARM_ERRATA_458693
1099 bool "ARM errata: Processor deadlock when a false hazard is created"
1100 depends on CPU_V7
1101 help
1102 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1103 erratum. For very specific sequences of memory operations, it is
1104 possible for a hazard condition intended for a cache line to instead
1105 be incorrectly associated with a different cache line. This false
1106 hazard might then cause a processor deadlock. The workaround enables
1107 the L1 caching of the NEON accesses and disables the PLD instruction
1108 in the ACTLR register. Note that setting specific bits in the ACTLR
1109 register may not be available in non-secure mode.
1110
Catalin Marinas0516e462009-04-30 17:06:20 +01001111config ARM_ERRATA_460075
1112 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1113 depends on CPU_V7
1114 help
1115 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1116 erratum. Any asynchronous access to the L2 cache may encounter a
1117 situation in which recent store transactions to the L2 cache are lost
1118 and overwritten with stale memory contents from external memory. The
1119 workaround disables the write-allocate mode for the L2 cache via the
1120 ACTLR register. Note that setting specific bits in the ACTLR register
1121 may not be available in non-secure mode.
1122
Will Deacon9f050272010-09-14 09:51:43 +01001123config ARM_ERRATA_742230
1124 bool "ARM errata: DMB operation may be faulty"
1125 depends on CPU_V7 && SMP
1126 help
1127 This option enables the workaround for the 742230 Cortex-A9
1128 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1129 between two write operations may not ensure the correct visibility
1130 ordering of the two writes. This workaround sets a specific bit in
1131 the diagnostic register of the Cortex-A9 which causes the DMB
1132 instruction to behave as a DSB, ensuring the correct behaviour of
1133 the two writes.
1134
Will Deacona672e992010-09-14 09:53:02 +01001135config ARM_ERRATA_742231
1136 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1137 depends on CPU_V7 && SMP
1138 help
1139 This option enables the workaround for the 742231 Cortex-A9
1140 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1141 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1142 accessing some data located in the same cache line, may get corrupted
1143 data due to bad handling of the address hazard when the line gets
1144 replaced from one of the CPUs at the same time as another CPU is
1145 accessing it. This workaround sets specific bits in the diagnostic
1146 register of the Cortex-A9 which reduces the linefill issuing
1147 capabilities of the processor.
1148
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001149config PL310_ERRATA_588369
1150 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001151 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001152 help
1153 The PL310 L2 cache controller implements three types of Clean &
1154 Invalidate maintenance operations: by Physical Address
1155 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1156 They are architecturally defined to behave as the execution of a
1157 clean operation followed immediately by an invalidate operation,
1158 both performing to the same memory location. This functionality
1159 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001160 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001161
1162config ARM_ERRATA_720789
1163 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1164 depends on CPU_V7 && SMP
1165 help
1166 This option enables the workaround for the 720789 Cortex-A9 (prior to
1167 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1168 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1169 As a consequence of this erratum, some TLB entries which should be
1170 invalidated are not, resulting in an incoherency in the system page
1171 tables. The workaround changes the TLB flushing routines to invalidate
1172 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001173
Russell King1f0090a2011-03-16 23:35:25 +00001174config PL310_ERRATA_727915
1175 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1176 depends on CACHE_L2X0
1177 help
1178 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1179 operation (offset 0x7FC). This operation runs in background so that
1180 PL310 can handle normal accesses while it is in progress. Under very
1181 rare circumstances, due to this erratum, write data can be lost when
1182 PL310 treats a cacheable write transaction during a Clean &
1183 Invalidate by Way operation.
1184
Will Deacon475d92f2010-09-28 14:02:02 +01001185config ARM_ERRATA_743622
1186 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1187 depends on CPU_V7
1188 help
1189 This option enables the workaround for the 743622 Cortex-A9
1190 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1191 optimisation in the Cortex-A9 Store Buffer may lead to data
1192 corruption. This workaround sets a specific bit in the diagnostic
1193 register of the Cortex-A9 which disables the Store Buffer
1194 optimisation, preventing the defect from occurring. This has no
1195 visible impact on the overall performance or power consumption of the
1196 processor.
1197
Will Deacon9a27c272011-02-18 16:36:35 +01001198config ARM_ERRATA_751472
1199 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1200 depends on CPU_V7 && SMP
1201 help
1202 This option enables the workaround for the 751472 Cortex-A9 (prior
1203 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1204 completion of a following broadcasted operation if the second
1205 operation is received by a CPU before the ICIALLUIS has completed,
1206 potentially leading to corrupted entries in the cache or TLB.
1207
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001208config ARM_ERRATA_753970
1209 bool "ARM errata: cache sync operation may be faulty"
1210 depends on CACHE_PL310
1211 help
1212 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1213
1214 Under some condition the effect of cache sync operation on
1215 the store buffer still remains when the operation completes.
1216 This means that the store buffer is always asked to drain and
1217 this prevents it from merging any further writes. The workaround
1218 is to replace the normal offset of cache sync operation (0x730)
1219 by another offset targeting an unmapped PL310 register 0x740.
1220 This has the same effect as the cache sync operation: store buffer
1221 drain and waiting for all buffers empty.
1222
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001223config ARM_ERRATA_754322
1224 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1225 depends on CPU_V7
1226 help
1227 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1228 r3p*) erratum. A speculative memory access may cause a page table walk
1229 which starts prior to an ASID switch but completes afterwards. This
1230 can populate the micro-TLB with a stale entry which may be hit with
1231 the new ASID. This workaround places two dsb instructions in the mm
1232 switching code so that no page table walks can cross the ASID switch.
1233
Will Deacon5dab26af2011-03-04 12:38:54 +01001234config ARM_ERRATA_754327
1235 bool "ARM errata: no automatic Store Buffer drain"
1236 depends on CPU_V7 && SMP
1237 help
1238 This option enables the workaround for the 754327 Cortex-A9 (prior to
1239 r2p0) erratum. The Store Buffer does not have any automatic draining
1240 mechanism and therefore a livelock may occur if an external agent
1241 continuously polls a memory location waiting to observe an update.
1242 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1243 written polling loops from denying visibility of updates to memory.
1244
Linus Torvalds1da177e2005-04-16 15:20:36 -07001245endmenu
1246
1247source "arch/arm/common/Kconfig"
1248
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249menu "Bus support"
1250
1251config ARM_AMBA
1252 bool
1253
1254config ISA
1255 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 help
1257 Find out whether you have ISA slots on your motherboard. ISA is the
1258 name of a bus system, i.e. the way the CPU talks to the other stuff
1259 inside your box. Other bus systems are PCI, EISA, MicroChannel
1260 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1261 newer boards don't support it. If you have ISA, say Y, otherwise N.
1262
Russell King065909b2006-01-04 15:44:16 +00001263# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264config ISA_DMA
1265 bool
Russell King065909b2006-01-04 15:44:16 +00001266 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267
Russell King065909b2006-01-04 15:44:16 +00001268# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001269config ISA_DMA_API
1270 bool
Al Viro5cae8412005-05-04 05:39:22 +01001271
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001273 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 help
1275 Find out whether you have a PCI motherboard. PCI is the name of a
1276 bus system, i.e. the way the CPU talks to the other stuff inside
1277 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1278 VESA. If you have PCI, say Y, otherwise N.
1279
Anton Vorontsov52882172010-04-19 13:20:49 +01001280config PCI_DOMAINS
1281 bool
1282 depends on PCI
1283
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001284config PCI_NANOENGINE
1285 bool "BSE nanoEngine PCI support"
1286 depends on SA1100_NANOENGINE
1287 help
1288 Enable PCI on the BSE nanoEngine board.
1289
Matthew Wilcox36e23592007-07-10 10:54:40 -06001290config PCI_SYSCALL
1291 def_bool PCI
1292
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293# Select the host bridge type
1294config PCI_HOST_VIA82C505
1295 bool
1296 depends on PCI && ARCH_SHARK
1297 default y
1298
Mike Rapoporta0113a92007-11-25 08:55:34 +01001299config PCI_HOST_ITE8152
1300 bool
1301 depends on PCI && MACH_ARMCORE
1302 default y
1303 select DMABOUNCE
1304
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305source "drivers/pci/Kconfig"
1306
1307source "drivers/pcmcia/Kconfig"
1308
1309endmenu
1310
1311menu "Kernel Features"
1312
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001313source "kernel/time/Kconfig"
1314
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001316 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001317 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001318 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001319 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001320 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001321 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001322 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001323 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001324 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 help
1326 This enables support for systems with more than one CPU. If you have
1327 a system with only one CPU, like most personal computers, say N. If
1328 you have a system with more than one CPU, say Y.
1329
1330 If you say N here, the kernel will run on single and multiprocessor
1331 machines, but will use only one CPU of a multiprocessor machine. If
1332 you say Y here, the kernel will run on many, but not all, single
1333 processor machines. On a single processor machine, the kernel will
1334 run faster if you say N here.
1335
Adrian Bunk03502fa2008-02-03 15:50:21 +02001336 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001338 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339
1340 If you don't know what to do here, say N.
1341
Russell Kingf00ec482010-09-04 10:47:48 +01001342config SMP_ON_UP
1343 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1344 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001345 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001346 default y
1347 help
1348 SMP kernels contain instructions which fail on non-SMP processors.
1349 Enabling this option allows the kernel to modify itself to make
1350 these instructions safe. Disabling it allows about 1K of space
1351 savings.
1352
1353 If you don't know what to do here, say Y.
1354
Russell Kinga8cbcd92009-05-16 11:51:14 +01001355config HAVE_ARM_SCU
1356 bool
1357 depends on SMP
1358 help
1359 This option enables support for the ARM system coherency unit
1360
Russell Kingf32f4ce2009-05-16 12:14:21 +01001361config HAVE_ARM_TWD
1362 bool
1363 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001364 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001365 help
1366 This options enables support for the ARM timer and watchdog unit
1367
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001368choice
1369 prompt "Memory split"
1370 default VMSPLIT_3G
1371 help
1372 Select the desired split between kernel and user memory.
1373
1374 If you are not absolutely sure what you are doing, leave this
1375 option alone!
1376
1377 config VMSPLIT_3G
1378 bool "3G/1G user/kernel split"
1379 config VMSPLIT_2G
1380 bool "2G/2G user/kernel split"
1381 config VMSPLIT_1G
1382 bool "1G/3G user/kernel split"
1383endchoice
1384
1385config PAGE_OFFSET
1386 hex
1387 default 0x40000000 if VMSPLIT_1G
1388 default 0x80000000 if VMSPLIT_2G
1389 default 0xC0000000
1390
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391config NR_CPUS
1392 int "Maximum number of CPUs (2-32)"
1393 range 2 32
1394 depends on SMP
1395 default "4"
1396
Russell Kinga054a812005-11-02 22:24:33 +00001397config HOTPLUG_CPU
1398 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1399 depends on SMP && HOTPLUG && EXPERIMENTAL
1400 help
1401 Say Y here to experiment with turning CPUs off and on. CPUs
1402 can be controlled through /sys/devices/system/cpu.
1403
Russell King37ee16a2005-11-08 19:08:05 +00001404config LOCAL_TIMERS
1405 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001406 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001407 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001408 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001409 help
1410 Enable support for local timers on SMP platforms, rather then the
1411 legacy IPI broadcast method. Local timers allows the system
1412 accounting to be spread across the timer interval, preventing a
1413 "thundering herd" at every timer tick.
1414
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001415source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416
Russell Kingf8065812006-03-02 22:41:59 +00001417config HZ
1418 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001419 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001420 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001421 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001422 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001423 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001424 default 100
1425
Catalin Marinas16c79652009-07-24 12:33:02 +01001426config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001427 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001428 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001429 select AEABI
1430 select ARM_ASM_UNIFIED
1431 help
1432 By enabling this option, the kernel will be compiled in
1433 Thumb-2 mode. A compiler/assembler that understand the unified
1434 ARM-Thumb syntax is needed.
1435
1436 If unsure, say N.
1437
Dave Martin6f685c52011-03-03 11:41:12 +01001438config THUMB2_AVOID_R_ARM_THM_JUMP11
1439 bool "Work around buggy Thumb-2 short branch relocations in gas"
1440 depends on THUMB2_KERNEL && MODULES
1441 default y
1442 help
1443 Various binutils versions can resolve Thumb-2 branches to
1444 locally-defined, preemptible global symbols as short-range "b.n"
1445 branch instructions.
1446
1447 This is a problem, because there's no guarantee the final
1448 destination of the symbol, or any candidate locations for a
1449 trampoline, are within range of the branch. For this reason, the
1450 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1451 relocation in modules at all, and it makes little sense to add
1452 support.
1453
1454 The symptom is that the kernel fails with an "unsupported
1455 relocation" error when loading some modules.
1456
1457 Until fixed tools are available, passing
1458 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1459 code which hits this problem, at the cost of a bit of extra runtime
1460 stack usage in some cases.
1461
1462 The problem is described in more detail at:
1463 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1464
1465 Only Thumb-2 kernels are affected.
1466
1467 Unless you are sure your tools don't have this problem, say Y.
1468
Catalin Marinas0becb082009-07-24 12:32:53 +01001469config ARM_ASM_UNIFIED
1470 bool
1471
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001472config AEABI
1473 bool "Use the ARM EABI to compile the kernel"
1474 help
1475 This option allows for the kernel to be compiled using the latest
1476 ARM ABI (aka EABI). This is only useful if you are using a user
1477 space environment that is also compiled with EABI.
1478
1479 Since there are major incompatibilities between the legacy ABI and
1480 EABI, especially with regard to structure member alignment, this
1481 option also changes the kernel syscall calling convention to
1482 disambiguate both ABIs and allow for backward compatibility support
1483 (selected with CONFIG_OABI_COMPAT).
1484
1485 To use this you need GCC version 4.0.0 or later.
1486
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001487config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001488 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001489 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001490 default y
1491 help
1492 This option preserves the old syscall interface along with the
1493 new (ARM EABI) one. It also provides a compatibility layer to
1494 intercept syscalls that have structure arguments which layout
1495 in memory differs between the legacy ABI and the new ARM EABI
1496 (only for non "thumb" binaries). This option adds a tiny
1497 overhead to all syscalls and produces a slightly larger kernel.
1498 If you know you'll be using only pure EABI user space then you
1499 can say N here. If this option is not selected and you attempt
1500 to execute a legacy ABI binary then the result will be
1501 UNPREDICTABLE (in fact it can be predicted that it won't work
1502 at all). If in doubt say Y.
1503
Mel Gormaneb335752009-05-13 17:34:48 +01001504config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001505 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001506
Russell King05944d72006-11-30 20:43:51 +00001507config ARCH_SPARSEMEM_ENABLE
1508 bool
1509
Russell King07a2f732008-10-01 21:39:58 +01001510config ARCH_SPARSEMEM_DEFAULT
1511 def_bool ARCH_SPARSEMEM_ENABLE
1512
Russell King05944d72006-11-30 20:43:51 +00001513config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001514 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001515
Will Deacon7b7bf492011-05-19 13:21:14 +01001516config HAVE_ARCH_PFN_VALID
1517 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1518
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001519config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001520 bool "High Memory Support"
1521 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001522 help
1523 The address space of ARM processors is only 4 Gigabytes large
1524 and it has to accommodate user address space, kernel address
1525 space as well as some memory mapped IO. That means that, if you
1526 have a large amount of physical memory and/or IO, not all of the
1527 memory can be "permanently mapped" by the kernel. The physical
1528 memory that is not permanently mapped is called "high memory".
1529
1530 Depending on the selected kernel/user memory split, minimum
1531 vmalloc space and actual amount of RAM, you may not need this
1532 option which should result in a slightly faster kernel.
1533
1534 If unsure, say n.
1535
Russell King65cec8e2009-08-17 20:02:06 +01001536config HIGHPTE
1537 bool "Allocate 2nd-level pagetables from highmem"
1538 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001539
Jamie Iles1b8873a2010-02-02 20:25:44 +01001540config HW_PERF_EVENTS
1541 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001542 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001543 default y
1544 help
1545 Enable hardware performance counter support for perf events. If
1546 disabled, perf events will use software events only.
1547
Dave Hansen3f22ab22005-06-23 00:07:43 -07001548source "mm/Kconfig"
1549
Magnus Dammc1b2d972010-07-05 10:00:11 +01001550config FORCE_MAX_ZONEORDER
1551 int "Maximum zone order" if ARCH_SHMOBILE
1552 range 11 64 if ARCH_SHMOBILE
1553 default "9" if SA1111
1554 default "11"
1555 help
1556 The kernel memory allocator divides physically contiguous memory
1557 blocks into "zones", where each zone is a power of two number of
1558 pages. This option selects the largest power of two that the kernel
1559 keeps in the memory allocator. If you need to allocate very large
1560 blocks of physically contiguous memory, then you may need to
1561 increase this value.
1562
1563 This config option is actually maximum order plus one. For example,
1564 a value of 11 means that the largest free memory block is 2^10 pages.
1565
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566config LEDS
1567 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001568 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001569 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001570 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1571 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001572 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001573 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001574 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575 help
1576 If you say Y here, the LEDs on your machine will be used
1577 to provide useful information about your current system status.
1578
1579 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1580 be able to select which LEDs are active using the options below. If
1581 you are compiling a kernel for the EBSA-110 or the LART however, the
1582 red LED will simply flash regularly to indicate that the system is
1583 still functional. It is safe to say Y here if you have a CATS
1584 system, but the driver will do nothing.
1585
1586config LEDS_TIMER
1587 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001588 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1589 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001591 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592 default y if ARCH_EBSA110
1593 help
1594 If you say Y here, one of the system LEDs (the green one on the
1595 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1596 will flash regularly to indicate that the system is still
1597 operational. This is mainly useful to kernel hackers who are
1598 debugging unstable kernels.
1599
1600 The LART uses the same LED for both Timer LED and CPU usage LED
1601 functions. You may choose to use both, but the Timer LED function
1602 will overrule the CPU usage LED.
1603
1604config LEDS_CPU
1605 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001606 !ARCH_OMAP) \
1607 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1608 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001609 depends on LEDS
1610 help
1611 If you say Y here, the red LED will be used to give a good real
1612 time indication of CPU usage, by lighting whenever the idle task
1613 is not currently executing.
1614
1615 The LART uses the same LED for both Timer LED and CPU usage LED
1616 functions. You may choose to use both, but the Timer LED function
1617 will overrule the CPU usage LED.
1618
1619config ALIGNMENT_TRAP
1620 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001621 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001622 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001623 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001625 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001626 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1627 address divisible by 4. On 32-bit ARM processors, these non-aligned
1628 fetch/store instructions will be emulated in software if you say
1629 here, which has a severe performance impact. This is necessary for
1630 correct operation of some network protocols. With an IP-only
1631 configuration it is safe to say N, otherwise say Y.
1632
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001633config UACCESS_WITH_MEMCPY
1634 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1635 depends on MMU && EXPERIMENTAL
1636 default y if CPU_FEROCEON
1637 help
1638 Implement faster copy_to_user and clear_user methods for CPU
1639 cores where a 8-word STM instruction give significantly higher
1640 memory write throughput than a sequence of individual 32bit stores.
1641
1642 A possible side effect is a slight increase in scheduling latency
1643 between threads sharing the same address space if they invoke
1644 such copy operations with large buffers.
1645
1646 However, if the CPU data cache is using a write-allocate mode,
1647 this option is unlikely to provide any performance gain.
1648
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001649config SECCOMP
1650 bool
1651 prompt "Enable seccomp to safely compute untrusted bytecode"
1652 ---help---
1653 This kernel feature is useful for number crunching applications
1654 that may need to compute untrusted bytecode during their
1655 execution. By using pipes or other transports made available to
1656 the process as file descriptors supporting the read/write
1657 syscalls, it's possible to isolate those applications in
1658 their own address space using seccomp. Once seccomp is
1659 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1660 and the task is only allowed to execute a few safe syscalls
1661 defined by each seccomp mode.
1662
Nicolas Pitrec743f382010-05-24 23:55:42 -04001663config CC_STACKPROTECTOR
1664 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001665 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001666 help
1667 This option turns on the -fstack-protector GCC feature. This
1668 feature puts, at the beginning of functions, a canary value on
1669 the stack just before the return address, and validates
1670 the value just before actually returning. Stack based buffer
1671 overflows (that need to overwrite this return address) now also
1672 overwrite the canary, which gets detected and the attack is then
1673 neutralized via a kernel panic.
1674 This feature requires gcc version 4.2 or above.
1675
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001676config DEPRECATED_PARAM_STRUCT
1677 bool "Provide old way to pass kernel parameters"
1678 help
1679 This was deprecated in 2001 and announced to live on for 5 years.
1680 Some old boot loaders still use this way.
1681
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682endmenu
1683
1684menu "Boot options"
1685
Grant Likely9eb8f672011-04-28 14:27:20 -06001686config USE_OF
1687 bool "Flattened Device Tree support"
1688 select OF
1689 select OF_EARLY_FLATTREE
1690 help
1691 Include support for flattened device tree machine descriptions.
1692
Linus Torvalds1da177e2005-04-16 15:20:36 -07001693# Compressed boot loader in ROM. Yes, we really want to ask about
1694# TEXT and BSS so we preserve their values in the config files.
1695config ZBOOT_ROM_TEXT
1696 hex "Compressed ROM boot loader base address"
1697 default "0"
1698 help
1699 The physical address at which the ROM-able zImage is to be
1700 placed in the target. Platforms which normally make use of
1701 ROM-able zImage formats normally set this to a suitable
1702 value in their defconfig file.
1703
1704 If ZBOOT_ROM is not enabled, this has no effect.
1705
1706config ZBOOT_ROM_BSS
1707 hex "Compressed ROM boot loader BSS address"
1708 default "0"
1709 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001710 The base address of an area of read/write memory in the target
1711 for the ROM-able zImage which must be available while the
1712 decompressor is running. It must be large enough to hold the
1713 entire decompressed kernel plus an additional 128 KiB.
1714 Platforms which normally make use of ROM-able zImage formats
1715 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716
1717 If ZBOOT_ROM is not enabled, this has no effect.
1718
1719config ZBOOT_ROM
1720 bool "Compressed boot loader in ROM/flash"
1721 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1722 help
1723 Say Y here if you intend to execute your compressed kernel image
1724 (zImage) directly from ROM or flash. If unsure, say N.
1725
Simon Hormanf45b1142011-01-11 04:01:08 +01001726config ZBOOT_ROM_MMCIF
1727 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1728 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1729 help
1730 Say Y here to include experimental MMCIF loading code in the
1731 ROM-able zImage. With this enabled it is possible to write the
1732 the ROM-able zImage kernel image to an MMC card and boot the
1733 kernel straight from the reset vector. At reset the processor
1734 Mask ROM will load the first part of the the ROM-able zImage
1735 which in turn loads the rest the kernel image to RAM using the
1736 MMCIF hardware block.
1737
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738config CMDLINE
1739 string "Default kernel command string"
1740 default ""
1741 help
1742 On some architectures (EBSA110 and CATS), there is currently no way
1743 for the boot loader to pass arguments to the kernel. For these
1744 architectures, you should supply some command-line options at build
1745 time by entering them here. As a minimum, you should specify the
1746 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1747
Victor Boivie4394c122011-05-04 17:07:55 +01001748choice
1749 prompt "Kernel command line type" if CMDLINE != ""
1750 default CMDLINE_FROM_BOOTLOADER
1751
1752config CMDLINE_FROM_BOOTLOADER
1753 bool "Use bootloader kernel arguments if available"
1754 help
1755 Uses the command-line options passed by the boot loader. If
1756 the boot loader doesn't provide any, the default kernel command
1757 string provided in CMDLINE will be used.
1758
1759config CMDLINE_EXTEND
1760 bool "Extend bootloader kernel arguments"
1761 help
1762 The command-line arguments provided by the boot loader will be
1763 appended to the default kernel command string.
1764
Alexander Holler92d20402010-02-16 19:04:53 +01001765config CMDLINE_FORCE
1766 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001767 help
1768 Always use the default kernel command string, even if the boot
1769 loader passes other arguments to the kernel.
1770 This is useful if you cannot or don't want to change the
1771 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001772endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001773
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774config XIP_KERNEL
1775 bool "Kernel Execute-In-Place from ROM"
1776 depends on !ZBOOT_ROM
1777 help
1778 Execute-In-Place allows the kernel to run from non-volatile storage
1779 directly addressable by the CPU, such as NOR flash. This saves RAM
1780 space since the text section of the kernel is not loaded from flash
1781 to RAM. Read-write sections, such as the data section and stack,
1782 are still copied to RAM. The XIP kernel is not compressed since
1783 it has to run directly from flash, so it will take more space to
1784 store it. The flash address used to link the kernel object files,
1785 and for storing it, is configuration dependent. Therefore, if you
1786 say Y here, you must know the proper physical address where to
1787 store the kernel image depending on your own flash memory usage.
1788
1789 Also note that the make target becomes "make xipImage" rather than
1790 "make zImage" or "make Image". The final kernel binary to put in
1791 ROM memory will be arch/arm/boot/xipImage.
1792
1793 If unsure, say N.
1794
1795config XIP_PHYS_ADDR
1796 hex "XIP Kernel Physical Location"
1797 depends on XIP_KERNEL
1798 default "0x00080000"
1799 help
1800 This is the physical address in your flash memory the kernel will
1801 be linked for and stored to. This address is dependent on your
1802 own flash usage.
1803
Richard Purdiec587e4a2007-02-06 21:29:00 +01001804config KEXEC
1805 bool "Kexec system call (EXPERIMENTAL)"
1806 depends on EXPERIMENTAL
1807 help
1808 kexec is a system call that implements the ability to shutdown your
1809 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001810 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001811 you can start any kernel with it, not just Linux.
1812
1813 It is an ongoing process to be certain the hardware in a machine
1814 is properly shutdown, so do not be surprised if this code does not
1815 initially work for you. It may help to enable device hotplugging
1816 support.
1817
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001818config ATAGS_PROC
1819 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001820 depends on KEXEC
1821 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001822 help
1823 Should the atags used to boot the kernel be exported in an "atags"
1824 file in procfs. Useful with kexec.
1825
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001826config CRASH_DUMP
1827 bool "Build kdump crash kernel (EXPERIMENTAL)"
1828 depends on EXPERIMENTAL
1829 help
1830 Generate crash dump after being started by kexec. This should
1831 be normally only set in special crash dump kernels which are
1832 loaded in the main kernel with kexec-tools into a specially
1833 reserved region and then later executed after a crash by
1834 kdump/kexec. The crash dump kernel must be compiled to a
1835 memory address not used by the main kernel
1836
1837 For more details see Documentation/kdump/kdump.txt
1838
Eric Miaoe69edc792010-07-05 15:56:50 +02001839config AUTO_ZRELADDR
1840 bool "Auto calculation of the decompressed kernel image address"
1841 depends on !ZBOOT_ROM && !ARCH_U300
1842 help
1843 ZRELADDR is the physical address where the decompressed kernel
1844 image will be placed. If AUTO_ZRELADDR is selected, the address
1845 will be determined at run-time by masking the current IP with
1846 0xf8000000. This assumes the zImage being placed in the first 128MB
1847 from start of memory.
1848
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849endmenu
1850
Russell Kingac9d7ef2008-08-18 17:26:00 +01001851menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852
Ben Dooks89c52ed2009-07-30 23:23:24 +01001853if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854
1855source "drivers/cpufreq/Kconfig"
1856
Yong Shen64f102b2010-10-21 21:18:59 +08001857config CPU_FREQ_IMX
1858 tristate "CPUfreq driver for i.MX CPUs"
1859 depends on ARCH_MXC && CPU_FREQ
1860 help
1861 This enables the CPUfreq driver for i.MX CPUs.
1862
Linus Torvalds1da177e2005-04-16 15:20:36 -07001863config CPU_FREQ_SA1100
1864 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001865
1866config CPU_FREQ_SA1110
1867 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001868
1869config CPU_FREQ_INTEGRATOR
1870 tristate "CPUfreq driver for ARM Integrator CPUs"
1871 depends on ARCH_INTEGRATOR && CPU_FREQ
1872 default y
1873 help
1874 This enables the CPUfreq driver for ARM Integrator CPUs.
1875
1876 For details, take a look at <file:Documentation/cpu-freq>.
1877
1878 If in doubt, say Y.
1879
Russell King9e2697f2007-12-14 13:30:14 +00001880config CPU_FREQ_PXA
1881 bool
1882 depends on CPU_FREQ && ARCH_PXA && PXA25x
1883 default y
1884 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1885
Mark Brownb3748dd2009-06-15 11:23:20 +01001886config CPU_FREQ_S3C64XX
1887 bool "CPUfreq support for Samsung S3C64XX CPUs"
1888 depends on CPU_FREQ && CPU_S3C6410
1889
Ben Dooks9d56c022009-07-30 23:23:25 +01001890config CPU_FREQ_S3C
1891 bool
1892 help
1893 Internal configuration node for common cpufreq on Samsung SoC
1894
1895config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001896 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001897 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1898 select CPU_FREQ_S3C
1899 help
1900 This enables the CPUfreq driver for the Samsung S3C24XX family
1901 of CPUs.
1902
1903 For details, take a look at <file:Documentation/cpu-freq>.
1904
1905 If in doubt, say N.
1906
1907config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001908 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001909 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1910 help
1911 Compile in support for changing the PLL frequency from the
1912 S3C24XX series CPUfreq driver. The PLL takes time to settle
1913 after a frequency change, so by default it is not enabled.
1914
1915 This also means that the PLL tables for the selected CPU(s) will
1916 be built which may increase the size of the kernel image.
1917
1918config CPU_FREQ_S3C24XX_DEBUG
1919 bool "Debug CPUfreq Samsung driver core"
1920 depends on CPU_FREQ_S3C24XX
1921 help
1922 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1923
1924config CPU_FREQ_S3C24XX_IODEBUG
1925 bool "Debug CPUfreq Samsung driver IO timing"
1926 depends on CPU_FREQ_S3C24XX
1927 help
1928 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1929
Ben Dookse6d197a2009-07-30 23:23:42 +01001930config CPU_FREQ_S3C24XX_DEBUGFS
1931 bool "Export debugfs for CPUFreq"
1932 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1933 help
1934 Export status information via debugfs.
1935
Linus Torvalds1da177e2005-04-16 15:20:36 -07001936endif
1937
Russell Kingac9d7ef2008-08-18 17:26:00 +01001938source "drivers/cpuidle/Kconfig"
1939
1940endmenu
1941
Linus Torvalds1da177e2005-04-16 15:20:36 -07001942menu "Floating point emulation"
1943
1944comment "At least one emulation must be selected"
1945
1946config FPE_NWFPE
1947 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001948 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949 ---help---
1950 Say Y to include the NWFPE floating point emulator in the kernel.
1951 This is necessary to run most binaries. Linux does not currently
1952 support floating point hardware so you need to say Y here even if
1953 your machine has an FPA or floating point co-processor podule.
1954
1955 You may say N here if you are going to load the Acorn FPEmulator
1956 early in the bootup.
1957
1958config FPE_NWFPE_XP
1959 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001960 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 help
1962 Say Y to include 80-bit support in the kernel floating-point
1963 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1964 Note that gcc does not generate 80-bit operations by default,
1965 so in most cases this option only enlarges the size of the
1966 floating point emulator without any good reason.
1967
1968 You almost surely want to say N here.
1969
1970config FPE_FASTFPE
1971 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001972 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973 ---help---
1974 Say Y here to include the FAST floating point emulator in the kernel.
1975 This is an experimental much faster emulator which now also has full
1976 precision for the mantissa. It does not support any exceptions.
1977 It is very simple, and approximately 3-6 times faster than NWFPE.
1978
1979 It should be sufficient for most programs. It may be not suitable
1980 for scientific calculations, but you have to check this for yourself.
1981 If you do not feel you need a faster FP emulation you should better
1982 choose NWFPE.
1983
1984config VFP
1985 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001986 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987 help
1988 Say Y to include VFP support code in the kernel. This is needed
1989 if your hardware includes a VFP unit.
1990
1991 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1992 release notes and additional status information.
1993
1994 Say N if your target does not have VFP hardware.
1995
Catalin Marinas25ebee02007-09-25 15:22:24 +01001996config VFPv3
1997 bool
1998 depends on VFP
1999 default y if CPU_V7
2000
Catalin Marinasb5872db2008-01-10 19:16:17 +01002001config NEON
2002 bool "Advanced SIMD (NEON) Extension support"
2003 depends on VFPv3 && CPU_V7
2004 help
2005 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2006 Extension.
2007
Linus Torvalds1da177e2005-04-16 15:20:36 -07002008endmenu
2009
2010menu "Userspace binary formats"
2011
2012source "fs/Kconfig.binfmt"
2013
2014config ARTHUR
2015 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002016 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002017 help
2018 Say Y here to include the kernel code necessary if you want to run
2019 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2020 experimental; if this sounds frightening, say N and sleep in peace.
2021 You can also say M here to compile this support as a module (which
2022 will be called arthur).
2023
2024endmenu
2025
2026menu "Power management options"
2027
Russell Kingeceab4a2005-11-15 11:31:41 +00002028source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029
Johannes Bergf4cb5702007-12-08 02:14:00 +01002030config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002031 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002032 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2033 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002034 def_bool y
2035
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036endmenu
2037
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002038source "net/Kconfig"
2039
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002040source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041
2042source "fs/Kconfig"
2043
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044source "arch/arm/Kconfig.debug"
2045
2046source "security/Kconfig"
2047
2048source "crypto/Kconfig"
2049
2050source "lib/Kconfig"