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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 help
33 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000034 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000036 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 Europe. There is an ARM Linux project with a web page at
38 <http://www.arm.linux.org.uk/>.
39
Russell King1a189b92008-04-13 21:41:55 +010040config HAVE_PWM
41 bool
42
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010043config MIGHT_HAVE_PCI
44 bool
45
Ralf Baechle75e71532007-02-09 17:08:58 +000046config SYS_SUPPORTS_APM_EMULATION
47 bool
48
Russell King112f38a42010-12-15 19:23:07 +000049config HAVE_SCHED_CLOCK
50 bool
51
David Brownell0a938b92007-03-05 00:30:18 -080052config GENERIC_GPIO
53 bool
David Brownell0a938b92007-03-05 00:30:18 -080054
John Stultz5cfc8ee2010-03-24 00:22:36 +000055config ARCH_USES_GETTIMEOFFSET
56 bool
57 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010058
Kevin Hilman0567a0c2007-03-13 20:29:24 +010059config GENERIC_CLOCKEVENTS
60 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010061
Catalin Marinasa8655e82008-02-04 17:30:57 +010062config GENERIC_CLOCKEVENTS_BROADCAST
63 bool
64 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010065 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config GENERIC_ISA_DMA
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config FIQ
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
200 Patch phys-to-virt translation functions at runtime according to
201 the position of the kernel in system memory.
202
Nicolas Pitreb511d752011-02-21 06:53:35 +0100203 This can only be used with non-XIP with MMU kernels where
Russell Kingdc21af92011-01-04 19:09:43 +0000204 the base of physical memory is at a 16MB boundary.
205
Russell Kingcada3c02011-01-04 19:39:29 +0000206config ARM_PATCH_PHYS_VIRT_16BIT
207 def_bool y
208 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
209
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210source "init/Kconfig"
211
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700212source "kernel/Kconfig.freezer"
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214menu "System Type"
215
Hyok S. Choi3c427972009-07-24 12:35:00 +0100216config MMU
217 bool "MMU-based Paged Memory Management Support"
218 default y
219 help
220 Select if you want MMU-based virtualised addressing space
221 support by paged memory management. If unsure, say 'Y'.
222
Russell Kingccf50e22010-03-15 19:03:06 +0000223#
224# The "ARM system type" choice list is ordered alphabetically by option
225# text. Please add new entries in the option alphabetic order.
226#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227choice
228 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000229 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100231config ARCH_INTEGRATOR
232 bool "ARM Ltd. Integrator family"
233 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100234 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100235 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000236 select ICST
Russell King13edd862010-01-15 21:49:23 +0000237 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000238 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000239 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100240 help
241 Support for ARM's Integrator platform.
242
243config ARCH_REALVIEW
244 bool "ARM Ltd. RealView family"
245 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100246 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000247 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100248 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100249 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000250 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000251 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000252 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100253 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254 help
255 This enables support for ARM Ltd RealView boards.
256
257config ARCH_VERSATILE
258 bool "ARM Ltd. Versatile family"
259 select ARM_AMBA
260 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100261 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000262 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100263 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100264 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000265 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000266 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000267 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000268 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 help
270 This enables support for ARM Ltd Versatile board.
271
Russell Kingceade892010-02-11 21:44:53 +0000272config ARCH_VEXPRESS
273 bool "ARM Ltd. Versatile Express family"
274 select ARCH_WANT_OPTIONAL_GPIOLIB
275 select ARM_AMBA
276 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100277 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000278 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000279 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100280 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000281 select ICST
282 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000283 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000284 help
285 This enables support for the ARM Ltd Versatile Express boards.
286
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100287config ARCH_AT91
288 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100289 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700290 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100291 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100292 This enables support for systems based on the Atmel AT91RM9200,
293 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294
Russell Kingccf50e22010-03-15 19:03:06 +0000295config ARCH_BCMRING
296 bool "Broadcom BCMRING"
297 depends on MMU
298 select CPU_V6
299 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100300 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000301 select GENERIC_CLOCKEVENTS
302 select ARCH_WANT_OPTIONAL_GPIOLIB
303 help
304 Support for Broadcom's BCMRing platform.
305
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100307 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000308 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000309 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000310 help
311 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300313config ARCH_CNS3XXX
314 bool "Cavium Networks CNS3XXX family"
315 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300316 select GENERIC_CLOCKEVENTS
317 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100318 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400319 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300320 help
321 Support for Cavium Networks CNS3XXX platform.
322
Russell King788c9702009-04-26 14:21:59 +0100323config ARCH_GEMINI
324 bool "Cortina Systems Gemini"
325 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100326 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000327 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100328 help
329 Support for the Cortina Systems Gemini family SoCs
330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331config ARCH_EBSA110
332 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100334 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000335 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337 help
338 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000339 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 Ethernet interface, two PCMCIA sockets, two serial ports and a
341 parallel port.
342
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000343config ARCH_EP93XX
344 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000345 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000346 select ARM_AMBA
347 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100348 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700349 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100350 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000351 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000352 help
353 This enables support for the Cirrus EP93xx series of CPUs.
354
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355config ARCH_FOOTBRIDGE
356 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000357 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000359 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000360 help
361 Support for systems based on the DC21285 companion chip
362 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
Russell King788c9702009-04-26 14:21:59 +0100364config ARCH_MXC
365 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100366 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100367 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100368 select CLKDEV_LOOKUP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100369 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100370 help
371 Support for Freescale MXC/iMX-based family of processors
372
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800373config ARCH_MXS
374 bool "Freescale MXS-based"
375 select GENERIC_CLOCKEVENTS
376 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100377 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800378 help
379 Support for Freescale MXS-based family of processors
380
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100381config ARCH_STMP3XXX
382 bool "Freescale STMP3xxx"
383 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100384 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100385 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100386 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100387 select USB_ARCH_HAS_EHCI
388 help
389 Support for systems based on the Freescale 3xxx CPUs.
390
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100391config ARCH_NETX
392 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100394 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100395 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000396 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100397 This enables support for systems based on the Hilscher NetX Soc
398
399config ARCH_H720X
400 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100402 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000403 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100404 help
405 This enables support for systems based on the Hynix HMS720x
406
Russell King3b938be2007-05-12 11:25:44 +0100407config ARCH_IOP13XX
408 bool "IOP13xx-based"
409 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000410 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100411 select PLAT_IOP
412 select PCI
413 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100414 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100415 help
416 Support for Intel's IOP13XX (XScale) family of processors.
417
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100418config ARCH_IOP32X
419 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100420 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000421 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100422 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100423 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100424 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000425 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100426 Support for Intel's 80219 and IOP32X (XScale) family of
427 processors.
428
429config ARCH_IOP33X
430 bool "IOP33x-based"
431 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000432 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100433 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100434 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100435 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436 help
437 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
Russell King3b938be2007-05-12 11:25:44 +0100439config ARCH_IXP23XX
440 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100441 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000442 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100443 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000444 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100445 help
Russell King3b938be2007-05-12 11:25:44 +0100446 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
448config ARCH_IXP2000
449 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100450 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100452 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000453 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000454 help
455 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456
Russell King3b938be2007-05-12 11:25:44 +0100457config ARCH_IXP4XX
458 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100459 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000460 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100461 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100462 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000463 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100464 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100465 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100466 help
Russell King3b938be2007-05-12 11:25:44 +0100467 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100468
Saeed Bisharaedabd382009-08-06 15:12:43 +0300469config ARCH_DOVE
470 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300471 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300472 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300473 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300474 select GENERIC_CLOCKEVENTS
475 select PLAT_ORION
476 help
477 Support for the Marvell Dove SoC 88AP510
478
Saeed Bishara651c74c2008-06-22 22:45:06 +0200479config ARCH_KIRKWOOD
480 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000481 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200482 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700483 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200484 select GENERIC_CLOCKEVENTS
485 select PLAT_ORION
486 help
487 Support for the following Marvell Kirkwood series SoCs:
488 88F6180, 88F6192 and 88F6281.
489
Russell King788c9702009-04-26 14:21:59 +0100490config ARCH_LOKI
491 bool "Marvell Loki (88RC8480)"
492 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100493 select GENERIC_CLOCKEVENTS
494 select PLAT_ORION
495 help
496 Support for the Marvell Loki (88RC8480) SoC.
497
Kevin Wells40805942010-07-27 08:49:04 -0700498config ARCH_LPC32XX
499 bool "NXP LPC32XX"
500 select CPU_ARM926T
501 select ARCH_REQUIRE_GPIOLIB
502 select HAVE_IDE
503 select ARM_AMBA
504 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100505 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700506 select GENERIC_TIME
507 select GENERIC_CLOCKEVENTS
508 help
509 Support for the NXP LPC32XX family of processors
510
Russell King788c9702009-04-26 14:21:59 +0100511config ARCH_MV78XX0
512 bool "Marvell MV78xx0"
513 select CPU_FEROCEON
514 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700515 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100516 select GENERIC_CLOCKEVENTS
517 select PLAT_ORION
518 help
519 Support for the following Marvell MV78xx0 series SoCs:
520 MV781x0, MV782x0.
521
522config ARCH_ORION5X
523 bool "Marvell Orion"
524 depends on MMU
525 select CPU_FEROCEON
526 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100528 select GENERIC_CLOCKEVENTS
529 select PLAT_ORION
530 help
531 Support for the following Marvell Orion 5x series SoCs:
532 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
533 Orion-2 (5281), Orion-1-90 (6183).
534
535config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500536 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100537 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100538 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100539 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100540 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000541 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100542 select TICK_ONESHOT
543 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400544 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100545 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500546 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100547
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100548config ARCH_KS8695
549 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000550 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100551 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000552 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100553 help
554 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
555 System-on-Chip devices.
556
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100557config ARCH_NS9XXX
558 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000559 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100560 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100561 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700562 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100563 help
564 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
565 System.
566
567 <http://www.digi.com/products/microprocessors/index.jsp>
568
Russell King788c9702009-04-26 14:21:59 +0100569config ARCH_W90X900
570 bool "Nuvoton W90X900 CPU"
571 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100572 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100573 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100574 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200575 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100576 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
577 At present, the w90x900 has been renamed nuc900, regarding
578 the ARM series product line, you can login the following
579 link address to know more.
580
581 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
582 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400583
wanzongshuna62e9032009-12-31 15:06:05 +0100584config ARCH_NUC93X
585 bool "Nuvoton NUC93X CPU"
586 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100587 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100588 help
589 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
590 low-power and high performance MPEG-4/JPEG multimedia controller chip.
591
Erik Gillingc5f80062010-01-21 16:53:02 -0800592config ARCH_TEGRA
593 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000594 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800595 select GENERIC_TIME
596 select GENERIC_CLOCKEVENTS
597 select GENERIC_GPIO
598 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000599 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800600 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700601 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800602 help
603 This enables support for NVIDIA Tegra based systems (Tegra APX,
604 Tegra 6xx and Tegra 2 series).
605
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100606config ARCH_PNX4008
607 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000608 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100609 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000610 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100611 help
612 This enables support for Philips PNX4008 mobile platform.
613
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700615 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100616 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500617 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100618 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100619 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700620 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100621 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000622 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000623 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800624 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800625 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000626 help
eric miao2c8086a2007-09-11 19:13:17 -0700627 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Russell King788c9702009-04-26 14:21:59 +0100629config ARCH_MSM
630 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500631 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800632 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700633 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800634 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800635 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800636 Support for Qualcomm MSM/QSD based systems. This runs on the
637 apps processor of the MSM/QSD and depends on a shared memory
638 interface to the modem processor which runs the baseband
639 stack and controls some vital subsystems
640 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800641
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900643 bool "Renesas SH-Mobile / R-Mobile"
644 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900645 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900646 select GENERIC_CLOCKEVENTS
647 select NO_IOPORT
648 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000649 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000650 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900651 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653config ARCH_RPC
654 bool "RiscPC"
655 select ARCH_ACORN
656 select FIQ
657 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100658 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100659 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000660 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000661 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100662 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 help
665 On the Acorn Risc-PC, Linux can support the internal IDE disk and
666 CD-ROM interface, serial and parallel port, and the floppy drive.
667
668config ARCH_SA1100
669 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000670 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100671 select ISA
Russell King05944d72006-11-30 20:43:51 +0000672 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500673 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100674 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000675 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100676 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700677 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000678 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100679 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700680 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000681 help
682 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683
684config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900685 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800686 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100687 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700688 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000689 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900690 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 help
692 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
693 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000694 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695
Ben Dooks63b1f512010-04-30 16:32:26 +0900696 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300697 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900698 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
699
Ben Dooksa08ab632008-10-21 14:06:39 +0100700config ARCH_S3C64XX
701 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000702 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900703 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900704 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100705 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900706 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000707 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100708 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900709 select ARCH_REQUIRE_GPIOLIB
710 select SAMSUNG_CLKSRC
711 select SAMSUNG_IRQ_VIC_TIMER
712 select SAMSUNG_IRQ_UART
713 select S3C_GPIO_TRACK
714 select S3C_GPIO_PULL_UPDOWN
715 select S3C_GPIO_CFG_S3C24XX
716 select S3C_GPIO_CFG_S3C64XX
717 select S3C_DEV_NAND
718 select USB_ARCH_HAS_OHCI
719 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900720 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900721 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100722 help
723 Samsung S3C64XX series based systems
724
Kukjin Kim49b7a492010-09-07 15:47:18 +0900725config ARCH_S5P64X0
726 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900727 select CPU_V6
728 select GENERIC_GPIO
729 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900731 select GENERIC_CLOCKEVENTS
732 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900734 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900735 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900736 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
737 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900738
Kukjin Kim550db7f2010-01-29 10:19:26 +0900739config ARCH_S5P6442
740 bool "Samsung S5P6442"
741 select CPU_V6
742 select GENERIC_GPIO
743 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900744 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900745 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900746 help
747 Samsung S5P6442 CPU based systems
748
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200749config ARCH_S5PC100
750 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900751 select GENERIC_GPIO
752 select HAVE_CLK
753 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100754 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900755 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900756 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900757 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900758 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900759 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200760 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900761
Kukjin Kim170f4e42010-02-24 16:40:44 +0900762config ARCH_S5PV210
763 bool "Samsung S5PV210/S5PC110"
764 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900765 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900766 select GENERIC_GPIO
767 select HAVE_CLK
768 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900769 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900770 select GENERIC_CLOCKEVENTS
771 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900772 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900773 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900774 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900775 help
776 Samsung S5PV210/S5PC110 series based systems
777
Kukjin Kim10606aa2011-02-14 15:05:27 +0900778config ARCH_EXYNOS4
779 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900780 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900781 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900782 select GENERIC_GPIO
783 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900784 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900785 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900786 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900787 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900788 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900789 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900790 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900791
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792config ARCH_SHARK
793 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000794 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100795 select ISA
796 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100797 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100798 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000799 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000800 help
801 Support for the StrongARM based Digital DNARD machine, also known
802 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803
Hans J. Koch83ef3332010-09-17 18:13:56 +0200804config ARCH_TCC_926
805 bool "Telechips TCC ARM926-based systems"
806 select CPU_ARM926T
807 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100808 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200809 select GENERIC_CLOCKEVENTS
810 help
811 Support for Telechips TCC ARM926-based systems.
812
Linus Walleijd98aac72009-04-27 10:21:46 +0100813config ARCH_U300
814 bool "ST-Ericsson U300 Series"
815 depends on MMU
816 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000817 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100818 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select ARM_AMBA
820 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100821 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100822 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100823 select GENERIC_GPIO
824 help
825 Support for ST-Ericsson U300 series mobile platforms.
826
Russell Kingccf50e22010-03-15 19:03:06 +0000827config ARCH_U8500
828 bool "ST-Ericsson U8500 Series"
829 select CPU_V7
830 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000831 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100832 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100833 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100834 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000835 help
836 Support for ST-Ericsson's Ux500 architecture
837
838config ARCH_NOMADIK
839 bool "STMicroelectronics Nomadik"
840 select ARM_AMBA
841 select ARM_VIC
842 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100843 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000844 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000845 select ARCH_REQUIRE_GPIOLIB
846 help
847 Support for the Nomadik platform by ST-Ericsson
848
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100849config ARCH_DAVINCI
850 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100851 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700852 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100853 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700854 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100855 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700856 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100857 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530858 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100859 help
860 Support for TI's DaVinci platform.
861
Russell King3b938be2007-05-12 11:25:44 +0100862config ARCH_OMAP
863 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700864 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700865 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100866 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700867 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000868 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800869 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100870 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200871 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100872
viresh kumarcee37e52010-04-01 12:31:05 +0100873config PLAT_SPEAR
874 bool "ST SPEAr"
875 select ARM_AMBA
876 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100877 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100878 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100879 select HAVE_CLK
880 help
881 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
882
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100883config ARCH_VT8500
884 bool "VIA/WonderMedia 85xx"
885 select CPU_ARM926T
886 select GENERIC_GPIO
887 select ARCH_HAS_CPUFREQ
888 select GENERIC_CLOCKEVENTS
889 select ARCH_REQUIRE_GPIOLIB
890 select HAVE_PWM
891 help
892 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893endchoice
894
Russell Kingccf50e22010-03-15 19:03:06 +0000895#
896# This is sorted alphabetically by mach-* pathname. However, plat-*
897# Kconfigs may be included either alphabetically (according to the
898# plat- suffix) or along side the corresponding mach-* source.
899#
Russell King95b8f202010-01-14 11:43:54 +0000900source "arch/arm/mach-at91/Kconfig"
901
902source "arch/arm/mach-bcmring/Kconfig"
903
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904source "arch/arm/mach-clps711x/Kconfig"
905
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300906source "arch/arm/mach-cns3xxx/Kconfig"
907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-davinci/Kconfig"
909
910source "arch/arm/mach-dove/Kconfig"
911
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000912source "arch/arm/mach-ep93xx/Kconfig"
913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914source "arch/arm/mach-footbridge/Kconfig"
915
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200916source "arch/arm/mach-gemini/Kconfig"
917
Russell King95b8f202010-01-14 11:43:54 +0000918source "arch/arm/mach-h720x/Kconfig"
919
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920source "arch/arm/mach-integrator/Kconfig"
921
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100922source "arch/arm/mach-iop32x/Kconfig"
923
924source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Dan Williams285f5fa2006-12-07 02:59:39 +0100926source "arch/arm/mach-iop13xx/Kconfig"
927
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928source "arch/arm/mach-ixp4xx/Kconfig"
929
930source "arch/arm/mach-ixp2000/Kconfig"
931
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100932source "arch/arm/mach-ixp23xx/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/mach-kirkwood/Kconfig"
935
936source "arch/arm/mach-ks8695/Kconfig"
937
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200938source "arch/arm/mach-loki/Kconfig"
939
Kevin Wells40805942010-07-27 08:49:04 -0700940source "arch/arm/mach-lpc32xx/Kconfig"
941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-msm/Kconfig"
943
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200944source "arch/arm/mach-mv78xx0/Kconfig"
945
Russell King95b8f202010-01-14 11:43:54 +0000946source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800948source "arch/arm/mach-mxs/Kconfig"
949
Russell King95b8f202010-01-14 11:43:54 +0000950source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800951
Russell King95b8f202010-01-14 11:43:54 +0000952source "arch/arm/mach-nomadik/Kconfig"
953source "arch/arm/plat-nomadik/Kconfig"
954
955source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
Russell Kingd91a89102010-02-04 18:13:17 +0000957source "arch/arm/mach-nuc93x/Kconfig"
958
Tony Lindgrend48af152005-07-10 19:58:17 +0100959source "arch/arm/plat-omap/Kconfig"
960
961source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Tony Lindgren1dbae812005-11-10 14:26:51 +0000963source "arch/arm/mach-omap2/Kconfig"
964
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400965source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400966
Russell King95b8f202010-01-14 11:43:54 +0000967source "arch/arm/mach-pxa/Kconfig"
968source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
Russell King95b8f202010-01-14 11:43:54 +0000970source "arch/arm/mach-mmp/Kconfig"
971
972source "arch/arm/mach-realview/Kconfig"
973
974source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300975
Ben Dookscf383672009-11-10 00:14:58 +0000976source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100977source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900978source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100979
viresh kumarcee37e52010-04-01 12:31:05 +0100980source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100981
Hans J. Koch83ef3332010-09-17 18:13:56 +0200982source "arch/arm/plat-tcc/Kconfig"
983
Ben Dooksa21765a2007-02-11 18:31:01 +0100984if ARCH_S3C2410
985source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100987source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900988source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100989source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100990source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100991endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
Ben Dooksa08ab632008-10-21 14:06:39 +0100993if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900994source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100995endif
996
Kukjin Kim49b7a492010-09-07 15:47:18 +0900997source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900998
Kukjin Kim550db7f2010-01-29 10:19:26 +0900999source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +01001000
Byungho Min5a7652f2009-06-23 21:39:42 +09001001source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001002
Kukjin Kim170f4e42010-02-24 16:40:44 +09001003source "arch/arm/mach-s5pv210/Kconfig"
1004
Kukjin Kim10606aa2011-02-14 15:05:27 +09001005source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001006
Russell King882d01f2010-03-02 23:40:15 +00001007source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008
Russell King882d01f2010-03-02 23:40:15 +00001009source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001010
Erik Gillingc5f80062010-01-21 16:53:02 -08001011source "arch/arm/mach-tegra/Kconfig"
1012
Russell King95b8f202010-01-14 11:43:54 +00001013source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
1017source "arch/arm/mach-versatile/Kconfig"
1018
Russell Kingceade892010-02-11 21:44:53 +00001019source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001020source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001021
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001022source "arch/arm/mach-vt8500/Kconfig"
1023
wanzongshun7ec80dd2008-12-03 03:55:38 +01001024source "arch/arm/mach-w90x900/Kconfig"
1025
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026# Definitions to make life easier
1027config ARCH_ACORN
1028 bool
1029
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001030config PLAT_IOP
1031 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001032 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001033 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001034
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001035config PLAT_ORION
1036 bool
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001037 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001038 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001039
Eric Miaobd5ce432009-01-20 12:06:01 +08001040config PLAT_PXA
1041 bool
1042
Russell Kingf4b8b312010-01-14 12:48:06 +00001043config PLAT_VERSATILE
1044 bool
1045
Russell Kinge3887712010-01-14 13:30:16 +00001046config ARM_TIMER_SP804
1047 bool
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049source arch/arm/mm/Kconfig
1050
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001051config IWMMXT
1052 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001053 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1054 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001055 help
1056 Enable support for iWMMXt context switching at run time if
1057 running on a CPU that supports it.
1058
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1060config XSCALE_PMU
1061 bool
1062 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1063 default y
1064
Jamie Iles0f4f0672010-02-02 20:23:15 +01001065config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001066 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001067 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001068 default y
1069 bool
1070
eric miao52108642010-12-13 09:42:34 +01001071config MULTI_IRQ_HANDLER
1072 bool
1073 help
1074 Allow each machine to specify it's own IRQ handler at run time.
1075
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001076if !MMU
1077source "arch/arm/Kconfig-nommu"
1078endif
1079
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001080config ARM_ERRATA_411920
1081 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001082 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001083 help
1084 Invalidation of the Instruction Cache operation can
1085 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1086 It does not affect the MPCore. This option enables the ARM Ltd.
1087 recommended workaround.
1088
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001089config ARM_ERRATA_430973
1090 bool "ARM errata: Stale prediction on replaced interworking branch"
1091 depends on CPU_V7
1092 help
1093 This option enables the workaround for the 430973 Cortex-A8
1094 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1095 interworking branch is replaced with another code sequence at the
1096 same virtual address, whether due to self-modifying code or virtual
1097 to physical address re-mapping, Cortex-A8 does not recover from the
1098 stale interworking branch prediction. This results in Cortex-A8
1099 executing the new code sequence in the incorrect ARM or Thumb state.
1100 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1101 and also flushes the branch target cache at every context switch.
1102 Note that setting specific bits in the ACTLR register may not be
1103 available in non-secure mode.
1104
Catalin Marinas855c5512009-04-30 17:06:15 +01001105config ARM_ERRATA_458693
1106 bool "ARM errata: Processor deadlock when a false hazard is created"
1107 depends on CPU_V7
1108 help
1109 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1110 erratum. For very specific sequences of memory operations, it is
1111 possible for a hazard condition intended for a cache line to instead
1112 be incorrectly associated with a different cache line. This false
1113 hazard might then cause a processor deadlock. The workaround enables
1114 the L1 caching of the NEON accesses and disables the PLD instruction
1115 in the ACTLR register. Note that setting specific bits in the ACTLR
1116 register may not be available in non-secure mode.
1117
Catalin Marinas0516e462009-04-30 17:06:20 +01001118config ARM_ERRATA_460075
1119 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1120 depends on CPU_V7
1121 help
1122 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1123 erratum. Any asynchronous access to the L2 cache may encounter a
1124 situation in which recent store transactions to the L2 cache are lost
1125 and overwritten with stale memory contents from external memory. The
1126 workaround disables the write-allocate mode for the L2 cache via the
1127 ACTLR register. Note that setting specific bits in the ACTLR register
1128 may not be available in non-secure mode.
1129
Will Deacon9f050272010-09-14 09:51:43 +01001130config ARM_ERRATA_742230
1131 bool "ARM errata: DMB operation may be faulty"
1132 depends on CPU_V7 && SMP
1133 help
1134 This option enables the workaround for the 742230 Cortex-A9
1135 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1136 between two write operations may not ensure the correct visibility
1137 ordering of the two writes. This workaround sets a specific bit in
1138 the diagnostic register of the Cortex-A9 which causes the DMB
1139 instruction to behave as a DSB, ensuring the correct behaviour of
1140 the two writes.
1141
Will Deacona672e992010-09-14 09:53:02 +01001142config ARM_ERRATA_742231
1143 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1144 depends on CPU_V7 && SMP
1145 help
1146 This option enables the workaround for the 742231 Cortex-A9
1147 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1148 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1149 accessing some data located in the same cache line, may get corrupted
1150 data due to bad handling of the address hazard when the line gets
1151 replaced from one of the CPUs at the same time as another CPU is
1152 accessing it. This workaround sets specific bits in the diagnostic
1153 register of the Cortex-A9 which reduces the linefill issuing
1154 capabilities of the processor.
1155
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001156config PL310_ERRATA_588369
1157 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001158 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001159 help
1160 The PL310 L2 cache controller implements three types of Clean &
1161 Invalidate maintenance operations: by Physical Address
1162 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1163 They are architecturally defined to behave as the execution of a
1164 clean operation followed immediately by an invalidate operation,
1165 both performing to the same memory location. This functionality
1166 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001167 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001168
1169config ARM_ERRATA_720789
1170 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1171 depends on CPU_V7 && SMP
1172 help
1173 This option enables the workaround for the 720789 Cortex-A9 (prior to
1174 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1175 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1176 As a consequence of this erratum, some TLB entries which should be
1177 invalidated are not, resulting in an incoherency in the system page
1178 tables. The workaround changes the TLB flushing routines to invalidate
1179 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001180
Russell King1f0090a2011-03-16 23:35:25 +00001181config PL310_ERRATA_727915
1182 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1183 depends on CACHE_L2X0
1184 help
1185 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1186 operation (offset 0x7FC). This operation runs in background so that
1187 PL310 can handle normal accesses while it is in progress. Under very
1188 rare circumstances, due to this erratum, write data can be lost when
1189 PL310 treats a cacheable write transaction during a Clean &
1190 Invalidate by Way operation.
1191
Will Deacon475d92f2010-09-28 14:02:02 +01001192config ARM_ERRATA_743622
1193 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1194 depends on CPU_V7
1195 help
1196 This option enables the workaround for the 743622 Cortex-A9
1197 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1198 optimisation in the Cortex-A9 Store Buffer may lead to data
1199 corruption. This workaround sets a specific bit in the diagnostic
1200 register of the Cortex-A9 which disables the Store Buffer
1201 optimisation, preventing the defect from occurring. This has no
1202 visible impact on the overall performance or power consumption of the
1203 processor.
1204
Will Deacon9a27c272011-02-18 16:36:35 +01001205config ARM_ERRATA_751472
1206 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1207 depends on CPU_V7 && SMP
1208 help
1209 This option enables the workaround for the 751472 Cortex-A9 (prior
1210 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1211 completion of a following broadcasted operation if the second
1212 operation is received by a CPU before the ICIALLUIS has completed,
1213 potentially leading to corrupted entries in the cache or TLB.
1214
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001215config ARM_ERRATA_753970
1216 bool "ARM errata: cache sync operation may be faulty"
1217 depends on CACHE_PL310
1218 help
1219 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1220
1221 Under some condition the effect of cache sync operation on
1222 the store buffer still remains when the operation completes.
1223 This means that the store buffer is always asked to drain and
1224 this prevents it from merging any further writes. The workaround
1225 is to replace the normal offset of cache sync operation (0x730)
1226 by another offset targeting an unmapped PL310 register 0x740.
1227 This has the same effect as the cache sync operation: store buffer
1228 drain and waiting for all buffers empty.
1229
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001230config ARM_ERRATA_754322
1231 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1232 depends on CPU_V7
1233 help
1234 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1235 r3p*) erratum. A speculative memory access may cause a page table walk
1236 which starts prior to an ASID switch but completes afterwards. This
1237 can populate the micro-TLB with a stale entry which may be hit with
1238 the new ASID. This workaround places two dsb instructions in the mm
1239 switching code so that no page table walks can cross the ASID switch.
1240
Will Deacon5dab26af2011-03-04 12:38:54 +01001241config ARM_ERRATA_754327
1242 bool "ARM errata: no automatic Store Buffer drain"
1243 depends on CPU_V7 && SMP
1244 help
1245 This option enables the workaround for the 754327 Cortex-A9 (prior to
1246 r2p0) erratum. The Store Buffer does not have any automatic draining
1247 mechanism and therefore a livelock may occur if an external agent
1248 continuously polls a memory location waiting to observe an update.
1249 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1250 written polling loops from denying visibility of updates to memory.
1251
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252endmenu
1253
1254source "arch/arm/common/Kconfig"
1255
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256menu "Bus support"
1257
1258config ARM_AMBA
1259 bool
1260
1261config ISA
1262 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001263 help
1264 Find out whether you have ISA slots on your motherboard. ISA is the
1265 name of a bus system, i.e. the way the CPU talks to the other stuff
1266 inside your box. Other bus systems are PCI, EISA, MicroChannel
1267 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1268 newer boards don't support it. If you have ISA, say Y, otherwise N.
1269
Russell King065909b2006-01-04 15:44:16 +00001270# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271config ISA_DMA
1272 bool
Russell King065909b2006-01-04 15:44:16 +00001273 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274
Russell King065909b2006-01-04 15:44:16 +00001275# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001276config ISA_DMA_API
1277 bool
Al Viro5cae8412005-05-04 05:39:22 +01001278
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001280 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281 help
1282 Find out whether you have a PCI motherboard. PCI is the name of a
1283 bus system, i.e. the way the CPU talks to the other stuff inside
1284 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1285 VESA. If you have PCI, say Y, otherwise N.
1286
Anton Vorontsov52882172010-04-19 13:20:49 +01001287config PCI_DOMAINS
1288 bool
1289 depends on PCI
1290
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001291config PCI_NANOENGINE
1292 bool "BSE nanoEngine PCI support"
1293 depends on SA1100_NANOENGINE
1294 help
1295 Enable PCI on the BSE nanoEngine board.
1296
Matthew Wilcox36e23592007-07-10 10:54:40 -06001297config PCI_SYSCALL
1298 def_bool PCI
1299
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300# Select the host bridge type
1301config PCI_HOST_VIA82C505
1302 bool
1303 depends on PCI && ARCH_SHARK
1304 default y
1305
Mike Rapoporta0113a92007-11-25 08:55:34 +01001306config PCI_HOST_ITE8152
1307 bool
1308 depends on PCI && MACH_ARMCORE
1309 default y
1310 select DMABOUNCE
1311
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312source "drivers/pci/Kconfig"
1313
1314source "drivers/pcmcia/Kconfig"
1315
1316endmenu
1317
1318menu "Kernel Features"
1319
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001320source "kernel/time/Kconfig"
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322config SMP
1323 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001324 depends on EXPERIMENTAL
Russell Kingfbb4dda2011-01-17 18:01:58 +00001325 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001326 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001327 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001328 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001329 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001330 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001331 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001332 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 help
1334 This enables support for systems with more than one CPU. If you have
1335 a system with only one CPU, like most personal computers, say N. If
1336 you have a system with more than one CPU, say Y.
1337
1338 If you say N here, the kernel will run on single and multiprocessor
1339 machines, but will use only one CPU of a multiprocessor machine. If
1340 you say Y here, the kernel will run on many, but not all, single
1341 processor machines. On a single processor machine, the kernel will
1342 run faster if you say N here.
1343
Adrian Bunk03502fa2008-02-03 15:50:21 +02001344 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001346 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347
1348 If you don't know what to do here, say N.
1349
Russell Kingf00ec482010-09-04 10:47:48 +01001350config SMP_ON_UP
1351 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1352 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001353 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001354 default y
1355 help
1356 SMP kernels contain instructions which fail on non-SMP processors.
1357 Enabling this option allows the kernel to modify itself to make
1358 these instructions safe. Disabling it allows about 1K of space
1359 savings.
1360
1361 If you don't know what to do here, say Y.
1362
Russell Kinga8cbcd92009-05-16 11:51:14 +01001363config HAVE_ARM_SCU
1364 bool
1365 depends on SMP
1366 help
1367 This option enables support for the ARM system coherency unit
1368
Russell Kingf32f4ce2009-05-16 12:14:21 +01001369config HAVE_ARM_TWD
1370 bool
1371 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001372 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001373 help
1374 This options enables support for the ARM timer and watchdog unit
1375
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001376choice
1377 prompt "Memory split"
1378 default VMSPLIT_3G
1379 help
1380 Select the desired split between kernel and user memory.
1381
1382 If you are not absolutely sure what you are doing, leave this
1383 option alone!
1384
1385 config VMSPLIT_3G
1386 bool "3G/1G user/kernel split"
1387 config VMSPLIT_2G
1388 bool "2G/2G user/kernel split"
1389 config VMSPLIT_1G
1390 bool "1G/3G user/kernel split"
1391endchoice
1392
1393config PAGE_OFFSET
1394 hex
1395 default 0x40000000 if VMSPLIT_1G
1396 default 0x80000000 if VMSPLIT_2G
1397 default 0xC0000000
1398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399config NR_CPUS
1400 int "Maximum number of CPUs (2-32)"
1401 range 2 32
1402 depends on SMP
1403 default "4"
1404
Russell Kinga054a812005-11-02 22:24:33 +00001405config HOTPLUG_CPU
1406 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1407 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001408 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001409 help
1410 Say Y here to experiment with turning CPUs off and on. CPUs
1411 can be controlled through /sys/devices/system/cpu.
1412
Russell King37ee16a2005-11-08 19:08:05 +00001413config LOCAL_TIMERS
1414 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001415 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001416 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001417 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001418 help
1419 Enable support for local timers on SMP platforms, rather then the
1420 legacy IPI broadcast method. Local timers allows the system
1421 accounting to be spread across the timer interval, preventing a
1422 "thundering herd" at every timer tick.
1423
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001424source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425
Russell Kingf8065812006-03-02 22:41:59 +00001426config HZ
1427 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001428 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001429 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001430 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001431 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001432 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001433 default 100
1434
Catalin Marinas16c79652009-07-24 12:33:02 +01001435config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001436 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001437 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001438 select AEABI
1439 select ARM_ASM_UNIFIED
1440 help
1441 By enabling this option, the kernel will be compiled in
1442 Thumb-2 mode. A compiler/assembler that understand the unified
1443 ARM-Thumb syntax is needed.
1444
1445 If unsure, say N.
1446
Dave Martin6f685c52011-03-03 11:41:12 +01001447config THUMB2_AVOID_R_ARM_THM_JUMP11
1448 bool "Work around buggy Thumb-2 short branch relocations in gas"
1449 depends on THUMB2_KERNEL && MODULES
1450 default y
1451 help
1452 Various binutils versions can resolve Thumb-2 branches to
1453 locally-defined, preemptible global symbols as short-range "b.n"
1454 branch instructions.
1455
1456 This is a problem, because there's no guarantee the final
1457 destination of the symbol, or any candidate locations for a
1458 trampoline, are within range of the branch. For this reason, the
1459 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1460 relocation in modules at all, and it makes little sense to add
1461 support.
1462
1463 The symptom is that the kernel fails with an "unsupported
1464 relocation" error when loading some modules.
1465
1466 Until fixed tools are available, passing
1467 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1468 code which hits this problem, at the cost of a bit of extra runtime
1469 stack usage in some cases.
1470
1471 The problem is described in more detail at:
1472 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1473
1474 Only Thumb-2 kernels are affected.
1475
1476 Unless you are sure your tools don't have this problem, say Y.
1477
Catalin Marinas0becb082009-07-24 12:32:53 +01001478config ARM_ASM_UNIFIED
1479 bool
1480
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001481config AEABI
1482 bool "Use the ARM EABI to compile the kernel"
1483 help
1484 This option allows for the kernel to be compiled using the latest
1485 ARM ABI (aka EABI). This is only useful if you are using a user
1486 space environment that is also compiled with EABI.
1487
1488 Since there are major incompatibilities between the legacy ABI and
1489 EABI, especially with regard to structure member alignment, this
1490 option also changes the kernel syscall calling convention to
1491 disambiguate both ABIs and allow for backward compatibility support
1492 (selected with CONFIG_OABI_COMPAT).
1493
1494 To use this you need GCC version 4.0.0 or later.
1495
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001496config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001497 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001498 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001499 default y
1500 help
1501 This option preserves the old syscall interface along with the
1502 new (ARM EABI) one. It also provides a compatibility layer to
1503 intercept syscalls that have structure arguments which layout
1504 in memory differs between the legacy ABI and the new ARM EABI
1505 (only for non "thumb" binaries). This option adds a tiny
1506 overhead to all syscalls and produces a slightly larger kernel.
1507 If you know you'll be using only pure EABI user space then you
1508 can say N here. If this option is not selected and you attempt
1509 to execute a legacy ABI binary then the result will be
1510 UNPREDICTABLE (in fact it can be predicted that it won't work
1511 at all). If in doubt say Y.
1512
Mel Gormaneb335752009-05-13 17:34:48 +01001513config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001514 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001515
Russell King05944d72006-11-30 20:43:51 +00001516config ARCH_SPARSEMEM_ENABLE
1517 bool
1518
Russell King07a2f732008-10-01 21:39:58 +01001519config ARCH_SPARSEMEM_DEFAULT
1520 def_bool ARCH_SPARSEMEM_ENABLE
1521
Russell King05944d72006-11-30 20:43:51 +00001522config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001523 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001524
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001525config HIGHMEM
1526 bool "High Memory Support (EXPERIMENTAL)"
1527 depends on MMU && EXPERIMENTAL
1528 help
1529 The address space of ARM processors is only 4 Gigabytes large
1530 and it has to accommodate user address space, kernel address
1531 space as well as some memory mapped IO. That means that, if you
1532 have a large amount of physical memory and/or IO, not all of the
1533 memory can be "permanently mapped" by the kernel. The physical
1534 memory that is not permanently mapped is called "high memory".
1535
1536 Depending on the selected kernel/user memory split, minimum
1537 vmalloc space and actual amount of RAM, you may not need this
1538 option which should result in a slightly faster kernel.
1539
1540 If unsure, say n.
1541
Russell King65cec8e2009-08-17 20:02:06 +01001542config HIGHPTE
1543 bool "Allocate 2nd-level pagetables from highmem"
1544 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001545
Jamie Iles1b8873a2010-02-02 20:25:44 +01001546config HW_PERF_EVENTS
1547 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001548 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001549 default y
1550 help
1551 Enable hardware performance counter support for perf events. If
1552 disabled, perf events will use software events only.
1553
Dave Hansen3f22ab22005-06-23 00:07:43 -07001554source "mm/Kconfig"
1555
Magnus Dammc1b2d972010-07-05 10:00:11 +01001556config FORCE_MAX_ZONEORDER
1557 int "Maximum zone order" if ARCH_SHMOBILE
1558 range 11 64 if ARCH_SHMOBILE
1559 default "9" if SA1111
1560 default "11"
1561 help
1562 The kernel memory allocator divides physically contiguous memory
1563 blocks into "zones", where each zone is a power of two number of
1564 pages. This option selects the largest power of two that the kernel
1565 keeps in the memory allocator. If you need to allocate very large
1566 blocks of physically contiguous memory, then you may need to
1567 increase this value.
1568
1569 This config option is actually maximum order plus one. For example,
1570 a value of 11 means that the largest free memory block is 2^10 pages.
1571
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572config LEDS
1573 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001574 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001575 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001576 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1577 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001578 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001579 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001580 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001581 help
1582 If you say Y here, the LEDs on your machine will be used
1583 to provide useful information about your current system status.
1584
1585 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1586 be able to select which LEDs are active using the options below. If
1587 you are compiling a kernel for the EBSA-110 or the LART however, the
1588 red LED will simply flash regularly to indicate that the system is
1589 still functional. It is safe to say Y here if you have a CATS
1590 system, but the driver will do nothing.
1591
1592config LEDS_TIMER
1593 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001594 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1595 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001596 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001597 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598 default y if ARCH_EBSA110
1599 help
1600 If you say Y here, one of the system LEDs (the green one on the
1601 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1602 will flash regularly to indicate that the system is still
1603 operational. This is mainly useful to kernel hackers who are
1604 debugging unstable kernels.
1605
1606 The LART uses the same LED for both Timer LED and CPU usage LED
1607 functions. You may choose to use both, but the Timer LED function
1608 will overrule the CPU usage LED.
1609
1610config LEDS_CPU
1611 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001612 !ARCH_OMAP) \
1613 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1614 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615 depends on LEDS
1616 help
1617 If you say Y here, the red LED will be used to give a good real
1618 time indication of CPU usage, by lighting whenever the idle task
1619 is not currently executing.
1620
1621 The LART uses the same LED for both Timer LED and CPU usage LED
1622 functions. You may choose to use both, but the Timer LED function
1623 will overrule the CPU usage LED.
1624
1625config ALIGNMENT_TRAP
1626 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001627 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001629 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001631 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001632 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1633 address divisible by 4. On 32-bit ARM processors, these non-aligned
1634 fetch/store instructions will be emulated in software if you say
1635 here, which has a severe performance impact. This is necessary for
1636 correct operation of some network protocols. With an IP-only
1637 configuration it is safe to say N, otherwise say Y.
1638
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001639config UACCESS_WITH_MEMCPY
1640 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1641 depends on MMU && EXPERIMENTAL
1642 default y if CPU_FEROCEON
1643 help
1644 Implement faster copy_to_user and clear_user methods for CPU
1645 cores where a 8-word STM instruction give significantly higher
1646 memory write throughput than a sequence of individual 32bit stores.
1647
1648 A possible side effect is a slight increase in scheduling latency
1649 between threads sharing the same address space if they invoke
1650 such copy operations with large buffers.
1651
1652 However, if the CPU data cache is using a write-allocate mode,
1653 this option is unlikely to provide any performance gain.
1654
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001655config SECCOMP
1656 bool
1657 prompt "Enable seccomp to safely compute untrusted bytecode"
1658 ---help---
1659 This kernel feature is useful for number crunching applications
1660 that may need to compute untrusted bytecode during their
1661 execution. By using pipes or other transports made available to
1662 the process as file descriptors supporting the read/write
1663 syscalls, it's possible to isolate those applications in
1664 their own address space using seccomp. Once seccomp is
1665 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1666 and the task is only allowed to execute a few safe syscalls
1667 defined by each seccomp mode.
1668
Nicolas Pitrec743f382010-05-24 23:55:42 -04001669config CC_STACKPROTECTOR
1670 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001671 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001672 help
1673 This option turns on the -fstack-protector GCC feature. This
1674 feature puts, at the beginning of functions, a canary value on
1675 the stack just before the return address, and validates
1676 the value just before actually returning. Stack based buffer
1677 overflows (that need to overwrite this return address) now also
1678 overwrite the canary, which gets detected and the attack is then
1679 neutralized via a kernel panic.
1680 This feature requires gcc version 4.2 or above.
1681
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001682config DEPRECATED_PARAM_STRUCT
1683 bool "Provide old way to pass kernel parameters"
1684 help
1685 This was deprecated in 2001 and announced to live on for 5 years.
1686 Some old boot loaders still use this way.
1687
Linus Torvalds1da177e2005-04-16 15:20:36 -07001688endmenu
1689
1690menu "Boot options"
1691
1692# Compressed boot loader in ROM. Yes, we really want to ask about
1693# TEXT and BSS so we preserve their values in the config files.
1694config ZBOOT_ROM_TEXT
1695 hex "Compressed ROM boot loader base address"
1696 default "0"
1697 help
1698 The physical address at which the ROM-able zImage is to be
1699 placed in the target. Platforms which normally make use of
1700 ROM-able zImage formats normally set this to a suitable
1701 value in their defconfig file.
1702
1703 If ZBOOT_ROM is not enabled, this has no effect.
1704
1705config ZBOOT_ROM_BSS
1706 hex "Compressed ROM boot loader BSS address"
1707 default "0"
1708 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001709 The base address of an area of read/write memory in the target
1710 for the ROM-able zImage which must be available while the
1711 decompressor is running. It must be large enough to hold the
1712 entire decompressed kernel plus an additional 128 KiB.
1713 Platforms which normally make use of ROM-able zImage formats
1714 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715
1716 If ZBOOT_ROM is not enabled, this has no effect.
1717
1718config ZBOOT_ROM
1719 bool "Compressed boot loader in ROM/flash"
1720 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1721 help
1722 Say Y here if you intend to execute your compressed kernel image
1723 (zImage) directly from ROM or flash. If unsure, say N.
1724
Simon Hormanf45b1142011-01-11 04:01:08 +01001725config ZBOOT_ROM_MMCIF
1726 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1727 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1728 help
1729 Say Y here to include experimental MMCIF loading code in the
1730 ROM-able zImage. With this enabled it is possible to write the
1731 the ROM-able zImage kernel image to an MMC card and boot the
1732 kernel straight from the reset vector. At reset the processor
1733 Mask ROM will load the first part of the the ROM-able zImage
1734 which in turn loads the rest the kernel image to RAM using the
1735 MMCIF hardware block.
1736
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737config CMDLINE
1738 string "Default kernel command string"
1739 default ""
1740 help
1741 On some architectures (EBSA110 and CATS), there is currently no way
1742 for the boot loader to pass arguments to the kernel. For these
1743 architectures, you should supply some command-line options at build
1744 time by entering them here. As a minimum, you should specify the
1745 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1746
Alexander Holler92d20402010-02-16 19:04:53 +01001747config CMDLINE_FORCE
1748 bool "Always use the default kernel command string"
1749 depends on CMDLINE != ""
1750 help
1751 Always use the default kernel command string, even if the boot
1752 loader passes other arguments to the kernel.
1753 This is useful if you cannot or don't want to change the
1754 command-line options your boot loader passes to the kernel.
1755
1756 If unsure, say N.
1757
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758config XIP_KERNEL
1759 bool "Kernel Execute-In-Place from ROM"
1760 depends on !ZBOOT_ROM
1761 help
1762 Execute-In-Place allows the kernel to run from non-volatile storage
1763 directly addressable by the CPU, such as NOR flash. This saves RAM
1764 space since the text section of the kernel is not loaded from flash
1765 to RAM. Read-write sections, such as the data section and stack,
1766 are still copied to RAM. The XIP kernel is not compressed since
1767 it has to run directly from flash, so it will take more space to
1768 store it. The flash address used to link the kernel object files,
1769 and for storing it, is configuration dependent. Therefore, if you
1770 say Y here, you must know the proper physical address where to
1771 store the kernel image depending on your own flash memory usage.
1772
1773 Also note that the make target becomes "make xipImage" rather than
1774 "make zImage" or "make Image". The final kernel binary to put in
1775 ROM memory will be arch/arm/boot/xipImage.
1776
1777 If unsure, say N.
1778
1779config XIP_PHYS_ADDR
1780 hex "XIP Kernel Physical Location"
1781 depends on XIP_KERNEL
1782 default "0x00080000"
1783 help
1784 This is the physical address in your flash memory the kernel will
1785 be linked for and stored to. This address is dependent on your
1786 own flash usage.
1787
Richard Purdiec587e4a2007-02-06 21:29:00 +01001788config KEXEC
1789 bool "Kexec system call (EXPERIMENTAL)"
1790 depends on EXPERIMENTAL
1791 help
1792 kexec is a system call that implements the ability to shutdown your
1793 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001794 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001795 you can start any kernel with it, not just Linux.
1796
1797 It is an ongoing process to be certain the hardware in a machine
1798 is properly shutdown, so do not be surprised if this code does not
1799 initially work for you. It may help to enable device hotplugging
1800 support.
1801
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001802config ATAGS_PROC
1803 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001804 depends on KEXEC
1805 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001806 help
1807 Should the atags used to boot the kernel be exported in an "atags"
1808 file in procfs. Useful with kexec.
1809
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001810config CRASH_DUMP
1811 bool "Build kdump crash kernel (EXPERIMENTAL)"
1812 depends on EXPERIMENTAL
1813 help
1814 Generate crash dump after being started by kexec. This should
1815 be normally only set in special crash dump kernels which are
1816 loaded in the main kernel with kexec-tools into a specially
1817 reserved region and then later executed after a crash by
1818 kdump/kexec. The crash dump kernel must be compiled to a
1819 memory address not used by the main kernel
1820
1821 For more details see Documentation/kdump/kdump.txt
1822
Eric Miaoe69edc792010-07-05 15:56:50 +02001823config AUTO_ZRELADDR
1824 bool "Auto calculation of the decompressed kernel image address"
1825 depends on !ZBOOT_ROM && !ARCH_U300
1826 help
1827 ZRELADDR is the physical address where the decompressed kernel
1828 image will be placed. If AUTO_ZRELADDR is selected, the address
1829 will be determined at run-time by masking the current IP with
1830 0xf8000000. This assumes the zImage being placed in the first 128MB
1831 from start of memory.
1832
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833endmenu
1834
Russell Kingac9d7ef2008-08-18 17:26:00 +01001835menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836
Ben Dooks89c52ed2009-07-30 23:23:24 +01001837if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838
1839source "drivers/cpufreq/Kconfig"
1840
Yong Shen64f102b2010-10-21 21:18:59 +08001841config CPU_FREQ_IMX
1842 tristate "CPUfreq driver for i.MX CPUs"
1843 depends on ARCH_MXC && CPU_FREQ
1844 help
1845 This enables the CPUfreq driver for i.MX CPUs.
1846
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847config CPU_FREQ_SA1100
1848 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849
1850config CPU_FREQ_SA1110
1851 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852
1853config CPU_FREQ_INTEGRATOR
1854 tristate "CPUfreq driver for ARM Integrator CPUs"
1855 depends on ARCH_INTEGRATOR && CPU_FREQ
1856 default y
1857 help
1858 This enables the CPUfreq driver for ARM Integrator CPUs.
1859
1860 For details, take a look at <file:Documentation/cpu-freq>.
1861
1862 If in doubt, say Y.
1863
Russell King9e2697f2007-12-14 13:30:14 +00001864config CPU_FREQ_PXA
1865 bool
1866 depends on CPU_FREQ && ARCH_PXA && PXA25x
1867 default y
1868 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1869
Mark Brownb3748dd2009-06-15 11:23:20 +01001870config CPU_FREQ_S3C64XX
1871 bool "CPUfreq support for Samsung S3C64XX CPUs"
1872 depends on CPU_FREQ && CPU_S3C6410
1873
Ben Dooks9d56c022009-07-30 23:23:25 +01001874config CPU_FREQ_S3C
1875 bool
1876 help
1877 Internal configuration node for common cpufreq on Samsung SoC
1878
1879config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001880 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001881 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1882 select CPU_FREQ_S3C
1883 help
1884 This enables the CPUfreq driver for the Samsung S3C24XX family
1885 of CPUs.
1886
1887 For details, take a look at <file:Documentation/cpu-freq>.
1888
1889 If in doubt, say N.
1890
1891config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001892 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001893 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1894 help
1895 Compile in support for changing the PLL frequency from the
1896 S3C24XX series CPUfreq driver. The PLL takes time to settle
1897 after a frequency change, so by default it is not enabled.
1898
1899 This also means that the PLL tables for the selected CPU(s) will
1900 be built which may increase the size of the kernel image.
1901
1902config CPU_FREQ_S3C24XX_DEBUG
1903 bool "Debug CPUfreq Samsung driver core"
1904 depends on CPU_FREQ_S3C24XX
1905 help
1906 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1907
1908config CPU_FREQ_S3C24XX_IODEBUG
1909 bool "Debug CPUfreq Samsung driver IO timing"
1910 depends on CPU_FREQ_S3C24XX
1911 help
1912 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1913
Ben Dookse6d197a2009-07-30 23:23:42 +01001914config CPU_FREQ_S3C24XX_DEBUGFS
1915 bool "Export debugfs for CPUFreq"
1916 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1917 help
1918 Export status information via debugfs.
1919
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920endif
1921
Russell Kingac9d7ef2008-08-18 17:26:00 +01001922source "drivers/cpuidle/Kconfig"
1923
1924endmenu
1925
Linus Torvalds1da177e2005-04-16 15:20:36 -07001926menu "Floating point emulation"
1927
1928comment "At least one emulation must be selected"
1929
1930config FPE_NWFPE
1931 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001932 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001933 ---help---
1934 Say Y to include the NWFPE floating point emulator in the kernel.
1935 This is necessary to run most binaries. Linux does not currently
1936 support floating point hardware so you need to say Y here even if
1937 your machine has an FPA or floating point co-processor podule.
1938
1939 You may say N here if you are going to load the Acorn FPEmulator
1940 early in the bootup.
1941
1942config FPE_NWFPE_XP
1943 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001944 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945 help
1946 Say Y to include 80-bit support in the kernel floating-point
1947 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1948 Note that gcc does not generate 80-bit operations by default,
1949 so in most cases this option only enlarges the size of the
1950 floating point emulator without any good reason.
1951
1952 You almost surely want to say N here.
1953
1954config FPE_FASTFPE
1955 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001956 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957 ---help---
1958 Say Y here to include the FAST floating point emulator in the kernel.
1959 This is an experimental much faster emulator which now also has full
1960 precision for the mantissa. It does not support any exceptions.
1961 It is very simple, and approximately 3-6 times faster than NWFPE.
1962
1963 It should be sufficient for most programs. It may be not suitable
1964 for scientific calculations, but you have to check this for yourself.
1965 If you do not feel you need a faster FP emulation you should better
1966 choose NWFPE.
1967
1968config VFP
1969 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001970 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001971 help
1972 Say Y to include VFP support code in the kernel. This is needed
1973 if your hardware includes a VFP unit.
1974
1975 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1976 release notes and additional status information.
1977
1978 Say N if your target does not have VFP hardware.
1979
Catalin Marinas25ebee02007-09-25 15:22:24 +01001980config VFPv3
1981 bool
1982 depends on VFP
1983 default y if CPU_V7
1984
Catalin Marinasb5872db2008-01-10 19:16:17 +01001985config NEON
1986 bool "Advanced SIMD (NEON) Extension support"
1987 depends on VFPv3 && CPU_V7
1988 help
1989 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1990 Extension.
1991
Linus Torvalds1da177e2005-04-16 15:20:36 -07001992endmenu
1993
1994menu "Userspace binary formats"
1995
1996source "fs/Kconfig.binfmt"
1997
1998config ARTHUR
1999 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002000 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001 help
2002 Say Y here to include the kernel code necessary if you want to run
2003 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2004 experimental; if this sounds frightening, say N and sleep in peace.
2005 You can also say M here to compile this support as a module (which
2006 will be called arthur).
2007
2008endmenu
2009
2010menu "Power management options"
2011
Russell Kingeceab4a2005-11-15 11:31:41 +00002012source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013
Johannes Bergf4cb5702007-12-08 02:14:00 +01002014config ARCH_SUSPEND_POSSIBLE
Kukjin Kim3e1d9872011-03-25 20:09:26 +09002015 depends on !ARCH_S5P64X0 && !ARCH_S5P6442
Russell King6a786182011-04-02 10:15:28 +01002016 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2017 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002018 def_bool y
2019
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020endmenu
2021
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002022source "net/Kconfig"
2023
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002024source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025
2026source "fs/Kconfig"
2027
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028source "arch/arm/Kconfig.debug"
2029
2030source "security/Kconfig"
2031
2032source "crypto/Kconfig"
2033
2034source "lib/Kconfig"