blob: 311822898618308c9b60e7799474ae07b6cf7503 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
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 King234b6ce2011-05-08 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 King234b6ce2011-05-08 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 King234b6ce2011-05-08 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 King234b6ce2011-05-08 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 King234b6ce2011-05-08 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 King234b6ce2011-05-08 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 King234b6ce2011-05-08 14:09:47 +0100665 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000666 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100667 select ISA
Russell King05944d72006-11-30 20:43:51 +0000668 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500669 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100670 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000671 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100672 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700673 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000674 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100675 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700676 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000677 help
678 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
680config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900681 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800682 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100683 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700684 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900685 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000686 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900687 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688 help
689 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
690 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000691 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692
Ben Dooks63b1f512010-04-30 16:32:26 +0900693 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300694 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900695 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
696
Ben Dooksa08ab632008-10-21 14:06:39 +0100697config ARCH_S3C64XX
698 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000699 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900700 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900701 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100702 select HAVE_CLK
Thomas Abraham226e85f2011-06-14 19:12:26 +0900703 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900704 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000705 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100706 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900707 select ARCH_REQUIRE_GPIOLIB
708 select SAMSUNG_CLKSRC
709 select SAMSUNG_IRQ_VIC_TIMER
710 select SAMSUNG_IRQ_UART
711 select S3C_GPIO_TRACK
712 select S3C_GPIO_PULL_UPDOWN
713 select S3C_GPIO_CFG_S3C24XX
714 select S3C_GPIO_CFG_S3C64XX
715 select S3C_DEV_NAND
716 select USB_ARCH_HAS_OHCI
717 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900718 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900719 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100720 help
721 Samsung S3C64XX series based systems
722
Kukjin Kim49b7a492010-09-07 15:47:18 +0900723config ARCH_S5P64X0
724 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900725 select CPU_V6
726 select GENERIC_GPIO
727 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900728 select CLKDEV_LOOKUP
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900729 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900730 select GENERIC_CLOCKEVENTS
731 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900732 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900733 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900734 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900735 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
736 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900737
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200738config ARCH_S5PC100
739 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900740 select GENERIC_GPIO
741 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900742 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900743 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100744 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900745 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900746 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900747 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900748 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900749 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200750 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900751
Kukjin Kim170f4e42010-02-24 16:40:44 +0900752config ARCH_S5PV210
753 bool "Samsung S5PV210/S5PC110"
754 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900755 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900756 select GENERIC_GPIO
757 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900758 select CLKDEV_LOOKUP
Kukjin Kim170f4e42010-02-24 16:40:44 +0900759 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900760 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900761 select GENERIC_CLOCKEVENTS
762 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900763 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900764 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900765 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900766 help
767 Samsung S5PV210/S5PC110 series based systems
768
Kukjin Kim10606aa2011-02-14 15:05:27 +0900769config ARCH_EXYNOS4
770 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900771 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900772 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900773 select GENERIC_GPIO
774 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900775 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900776 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900777 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900778 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900779 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900780 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900781 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900782
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783config ARCH_SHARK
784 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000785 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100786 select ISA
787 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100788 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100789 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000790 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000791 help
792 Support for the StrongARM based Digital DNARD machine, also known
793 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794
Hans J. Koch83ef3332010-09-17 18:13:56 +0200795config ARCH_TCC_926
796 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100797 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200798 select CPU_ARM926T
799 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100800 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200801 select GENERIC_CLOCKEVENTS
802 help
803 Support for Telechips TCC ARM926-based systems.
804
Linus Walleijd98aac72009-04-27 10:21:46 +0100805config ARCH_U300
806 bool "ST-Ericsson U300 Series"
807 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100808 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100809 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000810 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100811 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100812 select ARM_AMBA
813 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100815 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100816 select GENERIC_GPIO
817 help
818 Support for ST-Ericsson U300 series mobile platforms.
819
Russell Kingccf50e22010-03-15 19:03:06 +0000820config ARCH_U8500
821 bool "ST-Ericsson U8500 Series"
822 select CPU_V7
823 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000824 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100825 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100826 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100827 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000828 help
829 Support for ST-Ericsson's Ux500 architecture
830
831config ARCH_NOMADIK
832 bool "STMicroelectronics Nomadik"
833 select ARM_AMBA
834 select ARM_VIC
835 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100836 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000837 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000838 select ARCH_REQUIRE_GPIOLIB
839 help
840 Support for the Nomadik platform by ST-Ericsson
841
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100842config ARCH_DAVINCI
843 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100844 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700845 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100846 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700847 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100848 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700849 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100850 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530851 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100852 help
853 Support for TI's DaVinci platform.
854
Russell King3b938be2007-05-12 11:25:44 +0100855config ARCH_OMAP
856 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700857 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700858 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100859 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700860 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000861 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800862 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100863 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200864 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100865
viresh kumarcee37e52010-04-01 12:31:05 +0100866config PLAT_SPEAR
867 bool "ST SPEAr"
868 select ARM_AMBA
869 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100870 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100871 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100872 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100873 select HAVE_CLK
874 help
875 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
876
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100877config ARCH_VT8500
878 bool "VIA/WonderMedia 85xx"
879 select CPU_ARM926T
880 select GENERIC_GPIO
881 select ARCH_HAS_CPUFREQ
882 select GENERIC_CLOCKEVENTS
883 select ARCH_REQUIRE_GPIOLIB
884 select HAVE_PWM
885 help
886 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887endchoice
888
Russell Kingccf50e22010-03-15 19:03:06 +0000889#
890# This is sorted alphabetically by mach-* pathname. However, plat-*
891# Kconfigs may be included either alphabetically (according to the
892# plat- suffix) or along side the corresponding mach-* source.
893#
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-at91/Kconfig"
895
896source "arch/arm/mach-bcmring/Kconfig"
897
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898source "arch/arm/mach-clps711x/Kconfig"
899
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300900source "arch/arm/mach-cns3xxx/Kconfig"
901
Russell King95b8f202010-01-14 11:43:54 +0000902source "arch/arm/mach-davinci/Kconfig"
903
904source "arch/arm/mach-dove/Kconfig"
905
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000906source "arch/arm/mach-ep93xx/Kconfig"
907
Linus Torvalds1da177e2005-04-16 15:20:36 -0700908source "arch/arm/mach-footbridge/Kconfig"
909
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200910source "arch/arm/mach-gemini/Kconfig"
911
Russell King95b8f202010-01-14 11:43:54 +0000912source "arch/arm/mach-h720x/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-integrator/Kconfig"
915
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100916source "arch/arm/mach-iop32x/Kconfig"
917
918source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
Dan Williams285f5fa2006-12-07 02:59:39 +0100920source "arch/arm/mach-iop13xx/Kconfig"
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922source "arch/arm/mach-ixp4xx/Kconfig"
923
924source "arch/arm/mach-ixp2000/Kconfig"
925
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100926source "arch/arm/mach-ixp23xx/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-kirkwood/Kconfig"
929
930source "arch/arm/mach-ks8695/Kconfig"
931
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200932source "arch/arm/mach-loki/Kconfig"
933
Kevin Wells40805942010-07-27 08:49:04 -0700934source "arch/arm/mach-lpc32xx/Kconfig"
935
Russell King95b8f202010-01-14 11:43:54 +0000936source "arch/arm/mach-msm/Kconfig"
937
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200938source "arch/arm/mach-mv78xx0/Kconfig"
939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800942source "arch/arm/mach-mxs/Kconfig"
943
Russell King95b8f202010-01-14 11:43:54 +0000944source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800945
Russell King95b8f202010-01-14 11:43:54 +0000946source "arch/arm/mach-nomadik/Kconfig"
947source "arch/arm/plat-nomadik/Kconfig"
948
Russell Kingd91a8912010-02-04 18:13:17 +0000949source "arch/arm/mach-nuc93x/Kconfig"
950
Tony Lindgrend48af152005-07-10 19:58:17 +0100951source "arch/arm/plat-omap/Kconfig"
952
953source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Tony Lindgren1dbae812005-11-10 14:26:51 +0000955source "arch/arm/mach-omap2/Kconfig"
956
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400957source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-pxa/Kconfig"
960source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-mmp/Kconfig"
963
964source "arch/arm/mach-realview/Kconfig"
965
966source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300967
Ben Dookscf383672009-11-10 00:14:58 +0000968source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900970source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100971
viresh kumarcee37e52010-04-01 12:31:05 +0100972source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100973
Hans J. Koch83ef3332010-09-17 18:13:56 +0200974source "arch/arm/plat-tcc/Kconfig"
975
Ben Dooksa21765a2007-02-11 18:31:01 +0100976if ARCH_S3C2410
977source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900980source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100982source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100983endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984
Ben Dooksa08ab632008-10-21 14:06:39 +0100985if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900986source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100987endif
988
Kukjin Kim49b7a492010-09-07 15:47:18 +0900989source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900990
Byungho Min5a7652f2009-06-23 21:39:42 +0900991source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900992
Kukjin Kim170f4e42010-02-24 16:40:44 +0900993source "arch/arm/mach-s5pv210/Kconfig"
994
Kukjin Kim10606aa2011-02-14 15:05:27 +0900995source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900996
Russell King882d01f2010-03-02 23:40:15 +0000997source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998
Erik Gillingc5f80062010-01-21 16:53:02 -0800999source "arch/arm/mach-tegra/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
Russell King95b8f202010-01-14 11:43:54 +00001003source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
1005source "arch/arm/mach-versatile/Kconfig"
1006
Russell Kingceade892010-02-11 21:44:53 +00001007source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001008source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001009
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001010source "arch/arm/mach-vt8500/Kconfig"
1011
wanzongshun7ec80dd2008-12-03 03:55:38 +01001012source "arch/arm/mach-w90x900/Kconfig"
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014# Definitions to make life easier
1015config ARCH_ACORN
1016 bool
1017
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001018config PLAT_IOP
1019 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001020 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001021 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001022
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001023config PLAT_ORION
1024 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001025 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001026 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001027 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001028
Eric Miaobd5ce432009-01-20 12:06:01 +08001029config PLAT_PXA
1030 bool
1031
Russell Kingf4b8b312010-01-14 12:48:06 +00001032config PLAT_VERSATILE
1033 bool
1034
Russell Kinge3887712010-01-14 13:30:16 +00001035config ARM_TIMER_SP804
1036 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001037 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source arch/arm/mm/Kconfig
1040
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001041config IWMMXT
1042 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001043 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1044 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001045 help
1046 Enable support for iWMMXt context switching at run time if
1047 running on a CPU that supports it.
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1050config XSCALE_PMU
1051 bool
1052 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1053 default y
1054
Jamie Iles0f4f0672010-02-02 20:23:15 +01001055config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001056 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001057 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001058 default y
1059 bool
1060
eric miao52108642010-12-13 09:42:34 +01001061config MULTI_IRQ_HANDLER
1062 bool
1063 help
1064 Allow each machine to specify it's own IRQ handler at run time.
1065
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001066if !MMU
1067source "arch/arm/Kconfig-nommu"
1068endif
1069
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001070config ARM_ERRATA_411920
1071 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001072 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001073 help
1074 Invalidation of the Instruction Cache operation can
1075 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1076 It does not affect the MPCore. This option enables the ARM Ltd.
1077 recommended workaround.
1078
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001079config ARM_ERRATA_430973
1080 bool "ARM errata: Stale prediction on replaced interworking branch"
1081 depends on CPU_V7
1082 help
1083 This option enables the workaround for the 430973 Cortex-A8
1084 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1085 interworking branch is replaced with another code sequence at the
1086 same virtual address, whether due to self-modifying code or virtual
1087 to physical address re-mapping, Cortex-A8 does not recover from the
1088 stale interworking branch prediction. This results in Cortex-A8
1089 executing the new code sequence in the incorrect ARM or Thumb state.
1090 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1091 and also flushes the branch target cache at every context switch.
1092 Note that setting specific bits in the ACTLR register may not be
1093 available in non-secure mode.
1094
Catalin Marinas855c5512009-04-30 17:06:15 +01001095config ARM_ERRATA_458693
1096 bool "ARM errata: Processor deadlock when a false hazard is created"
1097 depends on CPU_V7
1098 help
1099 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1100 erratum. For very specific sequences of memory operations, it is
1101 possible for a hazard condition intended for a cache line to instead
1102 be incorrectly associated with a different cache line. This false
1103 hazard might then cause a processor deadlock. The workaround enables
1104 the L1 caching of the NEON accesses and disables the PLD instruction
1105 in the ACTLR register. Note that setting specific bits in the ACTLR
1106 register may not be available in non-secure mode.
1107
Catalin Marinas0516e462009-04-30 17:06:20 +01001108config ARM_ERRATA_460075
1109 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1110 depends on CPU_V7
1111 help
1112 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1113 erratum. Any asynchronous access to the L2 cache may encounter a
1114 situation in which recent store transactions to the L2 cache are lost
1115 and overwritten with stale memory contents from external memory. The
1116 workaround disables the write-allocate mode for the L2 cache via the
1117 ACTLR register. Note that setting specific bits in the ACTLR register
1118 may not be available in non-secure mode.
1119
Will Deacon9f050272010-09-14 09:51:43 +01001120config ARM_ERRATA_742230
1121 bool "ARM errata: DMB operation may be faulty"
1122 depends on CPU_V7 && SMP
1123 help
1124 This option enables the workaround for the 742230 Cortex-A9
1125 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1126 between two write operations may not ensure the correct visibility
1127 ordering of the two writes. This workaround sets a specific bit in
1128 the diagnostic register of the Cortex-A9 which causes the DMB
1129 instruction to behave as a DSB, ensuring the correct behaviour of
1130 the two writes.
1131
Will Deacona672e992010-09-14 09:53:02 +01001132config ARM_ERRATA_742231
1133 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1134 depends on CPU_V7 && SMP
1135 help
1136 This option enables the workaround for the 742231 Cortex-A9
1137 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1138 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1139 accessing some data located in the same cache line, may get corrupted
1140 data due to bad handling of the address hazard when the line gets
1141 replaced from one of the CPUs at the same time as another CPU is
1142 accessing it. This workaround sets specific bits in the diagnostic
1143 register of the Cortex-A9 which reduces the linefill issuing
1144 capabilities of the processor.
1145
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001146config PL310_ERRATA_588369
1147 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001148 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001149 help
1150 The PL310 L2 cache controller implements three types of Clean &
1151 Invalidate maintenance operations: by Physical Address
1152 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1153 They are architecturally defined to behave as the execution of a
1154 clean operation followed immediately by an invalidate operation,
1155 both performing to the same memory location. This functionality
1156 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001157 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001158
1159config ARM_ERRATA_720789
1160 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1161 depends on CPU_V7 && SMP
1162 help
1163 This option enables the workaround for the 720789 Cortex-A9 (prior to
1164 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1165 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1166 As a consequence of this erratum, some TLB entries which should be
1167 invalidated are not, resulting in an incoherency in the system page
1168 tables. The workaround changes the TLB flushing routines to invalidate
1169 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001170
Russell King1f0090a2011-03-16 23:35:25 +00001171config PL310_ERRATA_727915
1172 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1173 depends on CACHE_L2X0
1174 help
1175 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1176 operation (offset 0x7FC). This operation runs in background so that
1177 PL310 can handle normal accesses while it is in progress. Under very
1178 rare circumstances, due to this erratum, write data can be lost when
1179 PL310 treats a cacheable write transaction during a Clean &
1180 Invalidate by Way operation.
1181
Will Deacon475d92f2010-09-28 14:02:02 +01001182config ARM_ERRATA_743622
1183 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1184 depends on CPU_V7
1185 help
1186 This option enables the workaround for the 743622 Cortex-A9
1187 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1188 optimisation in the Cortex-A9 Store Buffer may lead to data
1189 corruption. This workaround sets a specific bit in the diagnostic
1190 register of the Cortex-A9 which disables the Store Buffer
1191 optimisation, preventing the defect from occurring. This has no
1192 visible impact on the overall performance or power consumption of the
1193 processor.
1194
Will Deacon9a27c272011-02-18 16:36:35 +01001195config ARM_ERRATA_751472
1196 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1197 depends on CPU_V7 && SMP
1198 help
1199 This option enables the workaround for the 751472 Cortex-A9 (prior
1200 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1201 completion of a following broadcasted operation if the second
1202 operation is received by a CPU before the ICIALLUIS has completed,
1203 potentially leading to corrupted entries in the cache or TLB.
1204
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001205config ARM_ERRATA_753970
1206 bool "ARM errata: cache sync operation may be faulty"
1207 depends on CACHE_PL310
1208 help
1209 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1210
1211 Under some condition the effect of cache sync operation on
1212 the store buffer still remains when the operation completes.
1213 This means that the store buffer is always asked to drain and
1214 this prevents it from merging any further writes. The workaround
1215 is to replace the normal offset of cache sync operation (0x730)
1216 by another offset targeting an unmapped PL310 register 0x740.
1217 This has the same effect as the cache sync operation: store buffer
1218 drain and waiting for all buffers empty.
1219
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001220config ARM_ERRATA_754322
1221 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1222 depends on CPU_V7
1223 help
1224 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1225 r3p*) erratum. A speculative memory access may cause a page table walk
1226 which starts prior to an ASID switch but completes afterwards. This
1227 can populate the micro-TLB with a stale entry which may be hit with
1228 the new ASID. This workaround places two dsb instructions in the mm
1229 switching code so that no page table walks can cross the ASID switch.
1230
Will Deacon5dab26a2011-03-04 12:38:54 +01001231config ARM_ERRATA_754327
1232 bool "ARM errata: no automatic Store Buffer drain"
1233 depends on CPU_V7 && SMP
1234 help
1235 This option enables the workaround for the 754327 Cortex-A9 (prior to
1236 r2p0) erratum. The Store Buffer does not have any automatic draining
1237 mechanism and therefore a livelock may occur if an external agent
1238 continuously polls a memory location waiting to observe an update.
1239 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1240 written polling loops from denying visibility of updates to memory.
1241
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242endmenu
1243
1244source "arch/arm/common/Kconfig"
1245
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246menu "Bus support"
1247
1248config ARM_AMBA
1249 bool
1250
1251config ISA
1252 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253 help
1254 Find out whether you have ISA slots on your motherboard. ISA is the
1255 name of a bus system, i.e. the way the CPU talks to the other stuff
1256 inside your box. Other bus systems are PCI, EISA, MicroChannel
1257 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1258 newer boards don't support it. If you have ISA, say Y, otherwise N.
1259
Russell King065909b2006-01-04 15:44:16 +00001260# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261config ISA_DMA
1262 bool
Russell King065909b2006-01-04 15:44:16 +00001263 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264
Russell King065909b2006-01-04 15:44:16 +00001265# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001266config ISA_DMA_API
1267 bool
Al Viro5cae8412005-05-04 05:39:22 +01001268
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001270 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 help
1272 Find out whether you have a PCI motherboard. PCI is the name of a
1273 bus system, i.e. the way the CPU talks to the other stuff inside
1274 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1275 VESA. If you have PCI, say Y, otherwise N.
1276
Anton Vorontsov52882172010-04-19 13:20:49 +01001277config PCI_DOMAINS
1278 bool
1279 depends on PCI
1280
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001281config PCI_NANOENGINE
1282 bool "BSE nanoEngine PCI support"
1283 depends on SA1100_NANOENGINE
1284 help
1285 Enable PCI on the BSE nanoEngine board.
1286
Matthew Wilcox36e23592007-07-10 10:54:40 -06001287config PCI_SYSCALL
1288 def_bool PCI
1289
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290# Select the host bridge type
1291config PCI_HOST_VIA82C505
1292 bool
1293 depends on PCI && ARCH_SHARK
1294 default y
1295
Mike Rapoporta0113a92007-11-25 08:55:34 +01001296config PCI_HOST_ITE8152
1297 bool
1298 depends on PCI && MACH_ARMCORE
1299 default y
1300 select DMABOUNCE
1301
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302source "drivers/pci/Kconfig"
1303
1304source "drivers/pcmcia/Kconfig"
1305
1306endmenu
1307
1308menu "Kernel Features"
1309
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001310source "kernel/time/Kconfig"
1311
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001313 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001314 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001315 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001316 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001317 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001318 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001319 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001320 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001321 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322 help
1323 This enables support for systems with more than one CPU. If you have
1324 a system with only one CPU, like most personal computers, say N. If
1325 you have a system with more than one CPU, say Y.
1326
1327 If you say N here, the kernel will run on single and multiprocessor
1328 machines, but will use only one CPU of a multiprocessor machine. If
1329 you say Y here, the kernel will run on many, but not all, single
1330 processor machines. On a single processor machine, the kernel will
1331 run faster if you say N here.
1332
Adrian Bunk03502fa2008-02-03 15:50:21 +02001333 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001335 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336
1337 If you don't know what to do here, say N.
1338
Russell Kingf00ec482010-09-04 10:47:48 +01001339config SMP_ON_UP
1340 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1341 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001342 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001343 default y
1344 help
1345 SMP kernels contain instructions which fail on non-SMP processors.
1346 Enabling this option allows the kernel to modify itself to make
1347 these instructions safe. Disabling it allows about 1K of space
1348 savings.
1349
1350 If you don't know what to do here, say Y.
1351
Russell Kinga8cbcd92009-05-16 11:51:14 +01001352config HAVE_ARM_SCU
1353 bool
1354 depends on SMP
1355 help
1356 This option enables support for the ARM system coherency unit
1357
Russell Kingf32f4ce2009-05-16 12:14:21 +01001358config HAVE_ARM_TWD
1359 bool
1360 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001361 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001362 help
1363 This options enables support for the ARM timer and watchdog unit
1364
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001365choice
1366 prompt "Memory split"
1367 default VMSPLIT_3G
1368 help
1369 Select the desired split between kernel and user memory.
1370
1371 If you are not absolutely sure what you are doing, leave this
1372 option alone!
1373
1374 config VMSPLIT_3G
1375 bool "3G/1G user/kernel split"
1376 config VMSPLIT_2G
1377 bool "2G/2G user/kernel split"
1378 config VMSPLIT_1G
1379 bool "1G/3G user/kernel split"
1380endchoice
1381
1382config PAGE_OFFSET
1383 hex
1384 default 0x40000000 if VMSPLIT_1G
1385 default 0x80000000 if VMSPLIT_2G
1386 default 0xC0000000
1387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388config NR_CPUS
1389 int "Maximum number of CPUs (2-32)"
1390 range 2 32
1391 depends on SMP
1392 default "4"
1393
Russell Kinga054a812005-11-02 22:24:33 +00001394config HOTPLUG_CPU
1395 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1396 depends on SMP && HOTPLUG && EXPERIMENTAL
1397 help
1398 Say Y here to experiment with turning CPUs off and on. CPUs
1399 can be controlled through /sys/devices/system/cpu.
1400
Russell King37ee16a2005-11-08 19:08:05 +00001401config LOCAL_TIMERS
1402 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001403 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001404 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001405 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001406 help
1407 Enable support for local timers on SMP platforms, rather then the
1408 legacy IPI broadcast method. Local timers allows the system
1409 accounting to be spread across the timer interval, preventing a
1410 "thundering herd" at every timer tick.
1411
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001412source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413
Russell Kingf8065812006-03-02 22:41:59 +00001414config HZ
1415 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001416 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001417 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001418 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001419 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001420 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001421 default 100
1422
Catalin Marinas16c79652009-07-24 12:33:02 +01001423config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001424 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001425 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001426 select AEABI
1427 select ARM_ASM_UNIFIED
1428 help
1429 By enabling this option, the kernel will be compiled in
1430 Thumb-2 mode. A compiler/assembler that understand the unified
1431 ARM-Thumb syntax is needed.
1432
1433 If unsure, say N.
1434
Dave Martin6f685c52011-03-03 11:41:12 +01001435config THUMB2_AVOID_R_ARM_THM_JUMP11
1436 bool "Work around buggy Thumb-2 short branch relocations in gas"
1437 depends on THUMB2_KERNEL && MODULES
1438 default y
1439 help
1440 Various binutils versions can resolve Thumb-2 branches to
1441 locally-defined, preemptible global symbols as short-range "b.n"
1442 branch instructions.
1443
1444 This is a problem, because there's no guarantee the final
1445 destination of the symbol, or any candidate locations for a
1446 trampoline, are within range of the branch. For this reason, the
1447 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1448 relocation in modules at all, and it makes little sense to add
1449 support.
1450
1451 The symptom is that the kernel fails with an "unsupported
1452 relocation" error when loading some modules.
1453
1454 Until fixed tools are available, passing
1455 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1456 code which hits this problem, at the cost of a bit of extra runtime
1457 stack usage in some cases.
1458
1459 The problem is described in more detail at:
1460 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1461
1462 Only Thumb-2 kernels are affected.
1463
1464 Unless you are sure your tools don't have this problem, say Y.
1465
Catalin Marinas0becb082009-07-24 12:32:53 +01001466config ARM_ASM_UNIFIED
1467 bool
1468
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001469config AEABI
1470 bool "Use the ARM EABI to compile the kernel"
1471 help
1472 This option allows for the kernel to be compiled using the latest
1473 ARM ABI (aka EABI). This is only useful if you are using a user
1474 space environment that is also compiled with EABI.
1475
1476 Since there are major incompatibilities between the legacy ABI and
1477 EABI, especially with regard to structure member alignment, this
1478 option also changes the kernel syscall calling convention to
1479 disambiguate both ABIs and allow for backward compatibility support
1480 (selected with CONFIG_OABI_COMPAT).
1481
1482 To use this you need GCC version 4.0.0 or later.
1483
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001484config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001485 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001486 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001487 default y
1488 help
1489 This option preserves the old syscall interface along with the
1490 new (ARM EABI) one. It also provides a compatibility layer to
1491 intercept syscalls that have structure arguments which layout
1492 in memory differs between the legacy ABI and the new ARM EABI
1493 (only for non "thumb" binaries). This option adds a tiny
1494 overhead to all syscalls and produces a slightly larger kernel.
1495 If you know you'll be using only pure EABI user space then you
1496 can say N here. If this option is not selected and you attempt
1497 to execute a legacy ABI binary then the result will be
1498 UNPREDICTABLE (in fact it can be predicted that it won't work
1499 at all). If in doubt say Y.
1500
Mel Gormaneb335752009-05-13 17:34:48 +01001501config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001502 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001503
Russell King05944d72006-11-30 20:43:51 +00001504config ARCH_SPARSEMEM_ENABLE
1505 bool
1506
Russell King07a2f732008-10-01 21:39:58 +01001507config ARCH_SPARSEMEM_DEFAULT
1508 def_bool ARCH_SPARSEMEM_ENABLE
1509
Russell King05944d72006-11-30 20:43:51 +00001510config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001511 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001512
Will Deacon7b7bf492011-05-19 13:21:14 +01001513config HAVE_ARCH_PFN_VALID
1514 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1515
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001516config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001517 bool "High Memory Support"
1518 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001519 help
1520 The address space of ARM processors is only 4 Gigabytes large
1521 and it has to accommodate user address space, kernel address
1522 space as well as some memory mapped IO. That means that, if you
1523 have a large amount of physical memory and/or IO, not all of the
1524 memory can be "permanently mapped" by the kernel. The physical
1525 memory that is not permanently mapped is called "high memory".
1526
1527 Depending on the selected kernel/user memory split, minimum
1528 vmalloc space and actual amount of RAM, you may not need this
1529 option which should result in a slightly faster kernel.
1530
1531 If unsure, say n.
1532
Russell King65cec8e2009-08-17 20:02:06 +01001533config HIGHPTE
1534 bool "Allocate 2nd-level pagetables from highmem"
1535 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001536
Jamie Iles1b8873a2010-02-02 20:25:44 +01001537config HW_PERF_EVENTS
1538 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001539 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001540 default y
1541 help
1542 Enable hardware performance counter support for perf events. If
1543 disabled, perf events will use software events only.
1544
Dave Hansen3f22ab22005-06-23 00:07:43 -07001545source "mm/Kconfig"
1546
Magnus Dammc1b2d972010-07-05 10:00:11 +01001547config FORCE_MAX_ZONEORDER
1548 int "Maximum zone order" if ARCH_SHMOBILE
1549 range 11 64 if ARCH_SHMOBILE
1550 default "9" if SA1111
1551 default "11"
1552 help
1553 The kernel memory allocator divides physically contiguous memory
1554 blocks into "zones", where each zone is a power of two number of
1555 pages. This option selects the largest power of two that the kernel
1556 keeps in the memory allocator. If you need to allocate very large
1557 blocks of physically contiguous memory, then you may need to
1558 increase this value.
1559
1560 This config option is actually maximum order plus one. For example,
1561 a value of 11 means that the largest free memory block is 2^10 pages.
1562
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563config LEDS
1564 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001565 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001566 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1568 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001569 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001570 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001571 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572 help
1573 If you say Y here, the LEDs on your machine will be used
1574 to provide useful information about your current system status.
1575
1576 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1577 be able to select which LEDs are active using the options below. If
1578 you are compiling a kernel for the EBSA-110 or the LART however, the
1579 red LED will simply flash regularly to indicate that the system is
1580 still functional. It is safe to say Y here if you have a CATS
1581 system, but the driver will do nothing.
1582
1583config LEDS_TIMER
1584 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001585 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1586 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001587 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001588 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589 default y if ARCH_EBSA110
1590 help
1591 If you say Y here, one of the system LEDs (the green one on the
1592 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1593 will flash regularly to indicate that the system is still
1594 operational. This is mainly useful to kernel hackers who are
1595 debugging unstable kernels.
1596
1597 The LART uses the same LED for both Timer LED and CPU usage LED
1598 functions. You may choose to use both, but the Timer LED function
1599 will overrule the CPU usage LED.
1600
1601config LEDS_CPU
1602 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001603 !ARCH_OMAP) \
1604 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1605 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606 depends on LEDS
1607 help
1608 If you say Y here, the red LED will be used to give a good real
1609 time indication of CPU usage, by lighting whenever the idle task
1610 is not currently executing.
1611
1612 The LART uses the same LED for both Timer LED and CPU usage LED
1613 functions. You may choose to use both, but the Timer LED function
1614 will overrule the CPU usage LED.
1615
1616config ALIGNMENT_TRAP
1617 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001618 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001620 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001621 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001622 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1624 address divisible by 4. On 32-bit ARM processors, these non-aligned
1625 fetch/store instructions will be emulated in software if you say
1626 here, which has a severe performance impact. This is necessary for
1627 correct operation of some network protocols. With an IP-only
1628 configuration it is safe to say N, otherwise say Y.
1629
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001630config UACCESS_WITH_MEMCPY
1631 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1632 depends on MMU && EXPERIMENTAL
1633 default y if CPU_FEROCEON
1634 help
1635 Implement faster copy_to_user and clear_user methods for CPU
1636 cores where a 8-word STM instruction give significantly higher
1637 memory write throughput than a sequence of individual 32bit stores.
1638
1639 A possible side effect is a slight increase in scheduling latency
1640 between threads sharing the same address space if they invoke
1641 such copy operations with large buffers.
1642
1643 However, if the CPU data cache is using a write-allocate mode,
1644 this option is unlikely to provide any performance gain.
1645
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001646config SECCOMP
1647 bool
1648 prompt "Enable seccomp to safely compute untrusted bytecode"
1649 ---help---
1650 This kernel feature is useful for number crunching applications
1651 that may need to compute untrusted bytecode during their
1652 execution. By using pipes or other transports made available to
1653 the process as file descriptors supporting the read/write
1654 syscalls, it's possible to isolate those applications in
1655 their own address space using seccomp. Once seccomp is
1656 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1657 and the task is only allowed to execute a few safe syscalls
1658 defined by each seccomp mode.
1659
Nicolas Pitrec743f382010-05-24 23:55:42 -04001660config CC_STACKPROTECTOR
1661 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001662 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001663 help
1664 This option turns on the -fstack-protector GCC feature. This
1665 feature puts, at the beginning of functions, a canary value on
1666 the stack just before the return address, and validates
1667 the value just before actually returning. Stack based buffer
1668 overflows (that need to overwrite this return address) now also
1669 overwrite the canary, which gets detected and the attack is then
1670 neutralized via a kernel panic.
1671 This feature requires gcc version 4.2 or above.
1672
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001673config DEPRECATED_PARAM_STRUCT
1674 bool "Provide old way to pass kernel parameters"
1675 help
1676 This was deprecated in 2001 and announced to live on for 5 years.
1677 Some old boot loaders still use this way.
1678
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679endmenu
1680
1681menu "Boot options"
1682
Grant Likely9eb8f672011-04-28 14:27:20 -06001683config USE_OF
1684 bool "Flattened Device Tree support"
1685 select OF
1686 select OF_EARLY_FLATTREE
1687 help
1688 Include support for flattened device tree machine descriptions.
1689
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690# Compressed boot loader in ROM. Yes, we really want to ask about
1691# TEXT and BSS so we preserve their values in the config files.
1692config ZBOOT_ROM_TEXT
1693 hex "Compressed ROM boot loader base address"
1694 default "0"
1695 help
1696 The physical address at which the ROM-able zImage is to be
1697 placed in the target. Platforms which normally make use of
1698 ROM-able zImage formats normally set this to a suitable
1699 value in their defconfig file.
1700
1701 If ZBOOT_ROM is not enabled, this has no effect.
1702
1703config ZBOOT_ROM_BSS
1704 hex "Compressed ROM boot loader BSS address"
1705 default "0"
1706 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001707 The base address of an area of read/write memory in the target
1708 for the ROM-able zImage which must be available while the
1709 decompressor is running. It must be large enough to hold the
1710 entire decompressed kernel plus an additional 128 KiB.
1711 Platforms which normally make use of ROM-able zImage formats
1712 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713
1714 If ZBOOT_ROM is not enabled, this has no effect.
1715
1716config ZBOOT_ROM
1717 bool "Compressed boot loader in ROM/flash"
1718 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1719 help
1720 Say Y here if you intend to execute your compressed kernel image
1721 (zImage) directly from ROM or flash. If unsure, say N.
1722
Simon Hormanf45b1142011-01-11 04:01:08 +01001723config ZBOOT_ROM_MMCIF
1724 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1725 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1726 help
1727 Say Y here to include experimental MMCIF loading code in the
1728 ROM-able zImage. With this enabled it is possible to write the
1729 the ROM-able zImage kernel image to an MMC card and boot the
1730 kernel straight from the reset vector. At reset the processor
1731 Mask ROM will load the first part of the the ROM-able zImage
1732 which in turn loads the rest the kernel image to RAM using the
1733 MMCIF hardware block.
1734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735config CMDLINE
1736 string "Default kernel command string"
1737 default ""
1738 help
1739 On some architectures (EBSA110 and CATS), there is currently no way
1740 for the boot loader to pass arguments to the kernel. For these
1741 architectures, you should supply some command-line options at build
1742 time by entering them here. As a minimum, you should specify the
1743 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1744
Victor Boivie4394c122011-05-04 17:07:55 +01001745choice
1746 prompt "Kernel command line type" if CMDLINE != ""
1747 default CMDLINE_FROM_BOOTLOADER
1748
1749config CMDLINE_FROM_BOOTLOADER
1750 bool "Use bootloader kernel arguments if available"
1751 help
1752 Uses the command-line options passed by the boot loader. If
1753 the boot loader doesn't provide any, the default kernel command
1754 string provided in CMDLINE will be used.
1755
1756config CMDLINE_EXTEND
1757 bool "Extend bootloader kernel arguments"
1758 help
1759 The command-line arguments provided by the boot loader will be
1760 appended to the default kernel command string.
1761
Alexander Holler92d20402010-02-16 19:04:53 +01001762config CMDLINE_FORCE
1763 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001764 help
1765 Always use the default kernel command string, even if the boot
1766 loader passes other arguments to the kernel.
1767 This is useful if you cannot or don't want to change the
1768 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001769endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001770
Linus Torvalds1da177e2005-04-16 15:20:36 -07001771config XIP_KERNEL
1772 bool "Kernel Execute-In-Place from ROM"
1773 depends on !ZBOOT_ROM
1774 help
1775 Execute-In-Place allows the kernel to run from non-volatile storage
1776 directly addressable by the CPU, such as NOR flash. This saves RAM
1777 space since the text section of the kernel is not loaded from flash
1778 to RAM. Read-write sections, such as the data section and stack,
1779 are still copied to RAM. The XIP kernel is not compressed since
1780 it has to run directly from flash, so it will take more space to
1781 store it. The flash address used to link the kernel object files,
1782 and for storing it, is configuration dependent. Therefore, if you
1783 say Y here, you must know the proper physical address where to
1784 store the kernel image depending on your own flash memory usage.
1785
1786 Also note that the make target becomes "make xipImage" rather than
1787 "make zImage" or "make Image". The final kernel binary to put in
1788 ROM memory will be arch/arm/boot/xipImage.
1789
1790 If unsure, say N.
1791
1792config XIP_PHYS_ADDR
1793 hex "XIP Kernel Physical Location"
1794 depends on XIP_KERNEL
1795 default "0x00080000"
1796 help
1797 This is the physical address in your flash memory the kernel will
1798 be linked for and stored to. This address is dependent on your
1799 own flash usage.
1800
Richard Purdiec587e4a2007-02-06 21:29:00 +01001801config KEXEC
1802 bool "Kexec system call (EXPERIMENTAL)"
1803 depends on EXPERIMENTAL
1804 help
1805 kexec is a system call that implements the ability to shutdown your
1806 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001807 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001808 you can start any kernel with it, not just Linux.
1809
1810 It is an ongoing process to be certain the hardware in a machine
1811 is properly shutdown, so do not be surprised if this code does not
1812 initially work for you. It may help to enable device hotplugging
1813 support.
1814
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001815config ATAGS_PROC
1816 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001817 depends on KEXEC
1818 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001819 help
1820 Should the atags used to boot the kernel be exported in an "atags"
1821 file in procfs. Useful with kexec.
1822
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001823config CRASH_DUMP
1824 bool "Build kdump crash kernel (EXPERIMENTAL)"
1825 depends on EXPERIMENTAL
1826 help
1827 Generate crash dump after being started by kexec. This should
1828 be normally only set in special crash dump kernels which are
1829 loaded in the main kernel with kexec-tools into a specially
1830 reserved region and then later executed after a crash by
1831 kdump/kexec. The crash dump kernel must be compiled to a
1832 memory address not used by the main kernel
1833
1834 For more details see Documentation/kdump/kdump.txt
1835
Eric Miaoe69edc792010-07-05 15:56:50 +02001836config AUTO_ZRELADDR
1837 bool "Auto calculation of the decompressed kernel image address"
1838 depends on !ZBOOT_ROM && !ARCH_U300
1839 help
1840 ZRELADDR is the physical address where the decompressed kernel
1841 image will be placed. If AUTO_ZRELADDR is selected, the address
1842 will be determined at run-time by masking the current IP with
1843 0xf8000000. This assumes the zImage being placed in the first 128MB
1844 from start of memory.
1845
Linus Torvalds1da177e2005-04-16 15:20:36 -07001846endmenu
1847
Russell Kingac9d7ef2008-08-18 17:26:00 +01001848menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849
Ben Dooks89c52ed2009-07-30 23:23:24 +01001850if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001851
1852source "drivers/cpufreq/Kconfig"
1853
Yong Shen64f102b2010-10-21 21:18:59 +08001854config CPU_FREQ_IMX
1855 tristate "CPUfreq driver for i.MX CPUs"
1856 depends on ARCH_MXC && CPU_FREQ
1857 help
1858 This enables the CPUfreq driver for i.MX CPUs.
1859
Linus Torvalds1da177e2005-04-16 15:20:36 -07001860config CPU_FREQ_SA1100
1861 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862
1863config CPU_FREQ_SA1110
1864 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001865
1866config CPU_FREQ_INTEGRATOR
1867 tristate "CPUfreq driver for ARM Integrator CPUs"
1868 depends on ARCH_INTEGRATOR && CPU_FREQ
1869 default y
1870 help
1871 This enables the CPUfreq driver for ARM Integrator CPUs.
1872
1873 For details, take a look at <file:Documentation/cpu-freq>.
1874
1875 If in doubt, say Y.
1876
Russell King9e2697f2007-12-14 13:30:14 +00001877config CPU_FREQ_PXA
1878 bool
1879 depends on CPU_FREQ && ARCH_PXA && PXA25x
1880 default y
1881 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1882
Mark Brownb3748dd2009-06-15 11:23:20 +01001883config CPU_FREQ_S3C64XX
1884 bool "CPUfreq support for Samsung S3C64XX CPUs"
1885 depends on CPU_FREQ && CPU_S3C6410
1886
Ben Dooks9d56c022009-07-30 23:23:25 +01001887config CPU_FREQ_S3C
1888 bool
1889 help
1890 Internal configuration node for common cpufreq on Samsung SoC
1891
1892config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001893 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001894 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1895 select CPU_FREQ_S3C
1896 help
1897 This enables the CPUfreq driver for the Samsung S3C24XX family
1898 of CPUs.
1899
1900 For details, take a look at <file:Documentation/cpu-freq>.
1901
1902 If in doubt, say N.
1903
1904config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001905 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001906 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1907 help
1908 Compile in support for changing the PLL frequency from the
1909 S3C24XX series CPUfreq driver. The PLL takes time to settle
1910 after a frequency change, so by default it is not enabled.
1911
1912 This also means that the PLL tables for the selected CPU(s) will
1913 be built which may increase the size of the kernel image.
1914
1915config CPU_FREQ_S3C24XX_DEBUG
1916 bool "Debug CPUfreq Samsung driver core"
1917 depends on CPU_FREQ_S3C24XX
1918 help
1919 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1920
1921config CPU_FREQ_S3C24XX_IODEBUG
1922 bool "Debug CPUfreq Samsung driver IO timing"
1923 depends on CPU_FREQ_S3C24XX
1924 help
1925 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1926
Ben Dookse6d197a2009-07-30 23:23:42 +01001927config CPU_FREQ_S3C24XX_DEBUGFS
1928 bool "Export debugfs for CPUFreq"
1929 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1930 help
1931 Export status information via debugfs.
1932
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933endif
1934
Russell Kingac9d7ef2008-08-18 17:26:00 +01001935source "drivers/cpuidle/Kconfig"
1936
1937endmenu
1938
Linus Torvalds1da177e2005-04-16 15:20:36 -07001939menu "Floating point emulation"
1940
1941comment "At least one emulation must be selected"
1942
1943config FPE_NWFPE
1944 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001945 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001946 ---help---
1947 Say Y to include the NWFPE floating point emulator in the kernel.
1948 This is necessary to run most binaries. Linux does not currently
1949 support floating point hardware so you need to say Y here even if
1950 your machine has an FPA or floating point co-processor podule.
1951
1952 You may say N here if you are going to load the Acorn FPEmulator
1953 early in the bootup.
1954
1955config FPE_NWFPE_XP
1956 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001957 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958 help
1959 Say Y to include 80-bit support in the kernel floating-point
1960 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1961 Note that gcc does not generate 80-bit operations by default,
1962 so in most cases this option only enlarges the size of the
1963 floating point emulator without any good reason.
1964
1965 You almost surely want to say N here.
1966
1967config FPE_FASTFPE
1968 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001969 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970 ---help---
1971 Say Y here to include the FAST floating point emulator in the kernel.
1972 This is an experimental much faster emulator which now also has full
1973 precision for the mantissa. It does not support any exceptions.
1974 It is very simple, and approximately 3-6 times faster than NWFPE.
1975
1976 It should be sufficient for most programs. It may be not suitable
1977 for scientific calculations, but you have to check this for yourself.
1978 If you do not feel you need a faster FP emulation you should better
1979 choose NWFPE.
1980
1981config VFP
1982 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001983 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001984 help
1985 Say Y to include VFP support code in the kernel. This is needed
1986 if your hardware includes a VFP unit.
1987
1988 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1989 release notes and additional status information.
1990
1991 Say N if your target does not have VFP hardware.
1992
Catalin Marinas25ebee02007-09-25 15:22:24 +01001993config VFPv3
1994 bool
1995 depends on VFP
1996 default y if CPU_V7
1997
Catalin Marinasb5872db2008-01-10 19:16:17 +01001998config NEON
1999 bool "Advanced SIMD (NEON) Extension support"
2000 depends on VFPv3 && CPU_V7
2001 help
2002 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2003 Extension.
2004
Linus Torvalds1da177e2005-04-16 15:20:36 -07002005endmenu
2006
2007menu "Userspace binary formats"
2008
2009source "fs/Kconfig.binfmt"
2010
2011config ARTHUR
2012 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002013 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002014 help
2015 Say Y here to include the kernel code necessary if you want to run
2016 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2017 experimental; if this sounds frightening, say N and sleep in peace.
2018 You can also say M here to compile this support as a module (which
2019 will be called arthur).
2020
2021endmenu
2022
2023menu "Power management options"
2024
Russell Kingeceab4a2005-11-15 11:31:41 +00002025source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002026
Johannes Bergf4cb5702007-12-08 02:14:00 +01002027config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002028 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002029 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2030 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002031 def_bool y
2032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033endmenu
2034
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002035source "net/Kconfig"
2036
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002037source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038
2039source "fs/Kconfig"
2040
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041source "arch/arm/Kconfig.debug"
2042
2043source "security/Kconfig"
2044
2045source "crypto/Kconfig"
2046
2047source "lib/Kconfig"