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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
Russell King234b6ced2011-05-08 14:09:47 +0100369 select CLKSRC_MMIO
Jan Weitzelc124bef2011-03-17 13:44:30 +0100370 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100371 help
372 Support for Freescale MXC/iMX-based family of processors
373
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800374config ARCH_MXS
375 bool "Freescale MXS-based"
376 select GENERIC_CLOCKEVENTS
377 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100378 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800379 help
380 Support for Freescale MXS-based family of processors
381
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100382config ARCH_STMP3XXX
383 bool "Freescale STMP3xxx"
384 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100385 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100386 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100387 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100388 select USB_ARCH_HAS_EHCI
389 help
390 Support for systems based on the Freescale 3xxx CPUs.
391
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100392config ARCH_NETX
393 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100394 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100397 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100399 This enables support for systems based on the Hilscher NetX Soc
400
401config ARCH_H720X
402 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100404 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000405 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100406 help
407 This enables support for systems based on the Hynix HMS720x
408
Russell King3b938be2007-05-12 11:25:44 +0100409config ARCH_IOP13XX
410 bool "IOP13xx-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100413 select PLAT_IOP
414 select PCI
415 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100416 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100417 help
418 Support for Intel's IOP13XX (XScale) family of processors.
419
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420config ARCH_IOP32X
421 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100424 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100426 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 Support for Intel's 80219 and IOP32X (XScale) family of
429 processors.
430
431config ARCH_IOP33X
432 bool "IOP33x-based"
433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100435 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100437 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100438 help
439 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IXP23XX
442 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100445 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100447 help
Russell King3b938be2007-05-12 11:25:44 +0100448 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450config ARCH_IXP2000
451 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100454 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000455 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
457 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IXP4XX
460 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100461 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100462 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100464 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100465 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000466 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100467 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100468 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100469 help
Russell King3b938be2007-05-12 11:25:44 +0100470 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100471
Saeed Bisharaedabd382009-08-06 15:12:43 +0300472config ARCH_DOVE
473 bool "Marvell Dove"
Russell Kingc7862822011-01-17 18:20:05 +0000474 select CPU_V6K
Saeed Bisharaedabd382009-08-06 15:12:43 +0300475 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300476 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the Marvell Dove SoC 88AP510
481
Saeed Bishara651c74c2008-06-22 22:45:06 +0200482config ARCH_KIRKWOOD
483 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000484 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200485 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700486 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200487 select GENERIC_CLOCKEVENTS
488 select PLAT_ORION
489 help
490 Support for the following Marvell Kirkwood series SoCs:
491 88F6180, 88F6192 and 88F6281.
492
Russell King788c9702009-04-26 14:21:59 +0100493config ARCH_LOKI
494 bool "Marvell Loki (88RC8480)"
495 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100496 select GENERIC_CLOCKEVENTS
497 select PLAT_ORION
498 help
499 Support for the Marvell Loki (88RC8480) SoC.
500
Kevin Wells40805942010-07-27 08:49:04 -0700501config ARCH_LPC32XX
502 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100503 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700504 select CPU_ARM926T
505 select ARCH_REQUIRE_GPIOLIB
506 select HAVE_IDE
507 select ARM_AMBA
508 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100509 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700510 select GENERIC_TIME
511 select GENERIC_CLOCKEVENTS
512 help
513 Support for the NXP LPC32XX family of processors
514
Russell King788c9702009-04-26 14:21:59 +0100515config ARCH_MV78XX0
516 bool "Marvell MV78xx0"
517 select CPU_FEROCEON
518 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700519 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100520 select GENERIC_CLOCKEVENTS
521 select PLAT_ORION
522 help
523 Support for the following Marvell MV78xx0 series SoCs:
524 MV781x0, MV782x0.
525
526config ARCH_ORION5X
527 bool "Marvell Orion"
528 depends on MMU
529 select CPU_FEROCEON
530 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700531 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100532 select GENERIC_CLOCKEVENTS
533 select PLAT_ORION
534 help
535 Support for the following Marvell Orion 5x series SoCs:
536 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
537 Orion-2 (5281), Orion-1-90 (6183).
538
539config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500540 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100541 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100542 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100543 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100544 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000545 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100546 select TICK_ONESHOT
547 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400548 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100549 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500550 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100551
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100552config ARCH_KS8695
553 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000554 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100555 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000556 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100557 help
558 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
559 System-on-Chip devices.
560
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100561config ARCH_NS9XXX
562 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000563 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100564 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100565 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700566 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100567 help
568 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
569 System.
570
571 <http://www.digi.com/products/microprocessors/index.jsp>
572
Russell King788c9702009-04-26 14:21:59 +0100573config ARCH_W90X900
574 bool "Nuvoton W90X900 CPU"
575 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100576 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100577 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100578 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200579 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100580 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
581 At present, the w90x900 has been renamed nuc900, regarding
582 the ARM series product line, you can login the following
583 link address to know more.
584
585 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
586 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400587
wanzongshuna62e9032009-12-31 15:06:05 +0100588config ARCH_NUC93X
589 bool "Nuvoton NUC93X CPU"
590 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100591 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100592 help
593 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
594 low-power and high performance MPEG-4/JPEG multimedia controller chip.
595
Erik Gillingc5f80062010-01-21 16:53:02 -0800596config ARCH_TEGRA
597 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000598 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100599 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800600 select GENERIC_TIME
601 select GENERIC_CLOCKEVENTS
602 select GENERIC_GPIO
603 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000604 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800605 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700606 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800607 help
608 This enables support for NVIDIA Tegra based systems (Tegra APX,
609 Tegra 6xx and Tegra 2 series).
610
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100611config ARCH_PNX4008
612 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000613 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100614 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000615 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100616 help
617 This enables support for Philips PNX4008 mobile platform.
618
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700620 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100621 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500622 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100623 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100624 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100625 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700626 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100627 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000628 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000629 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800630 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800631 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000632 help
eric miao2c8086a2007-09-11 19:13:17 -0700633 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634
Russell King788c9702009-04-26 14:21:59 +0100635config ARCH_MSM
636 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500637 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800638 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700639 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800640 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800641 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800642 Support for Qualcomm MSM/QSD based systems. This runs on the
643 apps processor of the MSM/QSD and depends on a shared memory
644 interface to the modem processor which runs the baseband
645 stack and controls some vital subsystems
646 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800647
Magnus Dammc793c1b2010-02-05 11:14:49 +0000648config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900649 bool "Renesas SH-Mobile / R-Mobile"
650 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900651 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900652 select GENERIC_CLOCKEVENTS
653 select NO_IOPORT
654 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000655 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000656 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900657 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000658
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659config ARCH_RPC
660 bool "RiscPC"
661 select ARCH_ACORN
662 select FIQ
663 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100664 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100665 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000666 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000667 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100668 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000669 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 help
671 On the Acorn Risc-PC, Linux can support the internal IDE disk and
672 CD-ROM interface, serial and parallel port, and the floppy drive.
673
674config ARCH_SA1100
675 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100676 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000677 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100678 select ISA
Russell King05944d72006-11-30 20:43:51 +0000679 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500680 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100681 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000682 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100683 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700684 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000685 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100686 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700687 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000688 help
689 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690
691config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900692 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800693 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100694 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700695 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000696 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900697 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 help
699 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
700 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000701 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702
Ben Dooks63b1f512010-04-30 16:32:26 +0900703 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300704 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900705 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
706
Ben Dooksa08ab632008-10-21 14:06:39 +0100707config ARCH_S3C64XX
708 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000709 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900710 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900711 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100712 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900713 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000714 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100715 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900716 select ARCH_REQUIRE_GPIOLIB
717 select SAMSUNG_CLKSRC
718 select SAMSUNG_IRQ_VIC_TIMER
719 select SAMSUNG_IRQ_UART
720 select S3C_GPIO_TRACK
721 select S3C_GPIO_PULL_UPDOWN
722 select S3C_GPIO_CFG_S3C24XX
723 select S3C_GPIO_CFG_S3C64XX
724 select S3C_DEV_NAND
725 select USB_ARCH_HAS_OHCI
726 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900727 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900728 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100729 help
730 Samsung S3C64XX series based systems
731
Kukjin Kim49b7a492010-09-07 15:47:18 +0900732config ARCH_S5P64X0
733 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900734 select CPU_V6
735 select GENERIC_GPIO
736 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900737 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900738 select GENERIC_CLOCKEVENTS
739 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900740 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900741 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900742 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900743 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
744 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900745
Kukjin Kim550db7f2010-01-29 10:19:26 +0900746config ARCH_S5P6442
747 bool "Samsung S5P6442"
748 select CPU_V6
749 select GENERIC_GPIO
750 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900751 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900752 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900753 help
754 Samsung S5P6442 CPU based systems
755
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200756config ARCH_S5PC100
757 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900758 select GENERIC_GPIO
759 select HAVE_CLK
760 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100761 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900762 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900763 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900764 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900765 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900766 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200767 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900768
Kukjin Kim170f4e42010-02-24 16:40:44 +0900769config ARCH_S5PV210
770 bool "Samsung S5PV210/S5PC110"
771 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900772 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900773 select GENERIC_GPIO
774 select HAVE_CLK
775 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900776 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900777 select GENERIC_CLOCKEVENTS
778 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900779 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900780 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900781 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900782 help
783 Samsung S5PV210/S5PC110 series based systems
784
Kukjin Kim10606aa2011-02-14 15:05:27 +0900785config ARCH_EXYNOS4
786 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900787 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900788 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900789 select GENERIC_GPIO
790 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900791 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900792 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900793 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900794 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900795 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900796 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900797 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900798
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799config ARCH_SHARK
800 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000801 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100802 select ISA
803 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100804 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100805 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000806 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000807 help
808 Support for the StrongARM based Digital DNARD machine, also known
809 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810
Hans J. Koch83ef3332010-09-17 18:13:56 +0200811config ARCH_TCC_926
812 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100813 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200814 select CPU_ARM926T
815 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100816 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200817 select GENERIC_CLOCKEVENTS
818 help
819 Support for Telechips TCC ARM926-based systems.
820
Linus Walleijd98aac72009-04-27 10:21:46 +0100821config ARCH_U300
822 bool "ST-Ericsson U300 Series"
823 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100824 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100825 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000826 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100827 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100828 select ARM_AMBA
829 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100830 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100831 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100832 select GENERIC_GPIO
833 help
834 Support for ST-Ericsson U300 series mobile platforms.
835
Russell Kingccf50e22010-03-15 19:03:06 +0000836config ARCH_U8500
837 bool "ST-Ericsson U8500 Series"
838 select CPU_V7
839 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000840 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100841 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100842 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100843 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000844 help
845 Support for ST-Ericsson's Ux500 architecture
846
847config ARCH_NOMADIK
848 bool "STMicroelectronics Nomadik"
849 select ARM_AMBA
850 select ARM_VIC
851 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100852 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000853 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000854 select ARCH_REQUIRE_GPIOLIB
855 help
856 Support for the Nomadik platform by ST-Ericsson
857
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100858config ARCH_DAVINCI
859 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100860 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700861 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100862 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700863 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100864 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700865 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530866 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100867 help
868 Support for TI's DaVinci platform.
869
Russell King3b938be2007-05-12 11:25:44 +0100870config ARCH_OMAP
871 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700872 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700873 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100874 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700875 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000876 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800877 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100878 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200879 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100880
viresh kumarcee37e52010-04-01 12:31:05 +0100881config PLAT_SPEAR
882 bool "ST SPEAr"
883 select ARM_AMBA
884 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100885 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100886 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100887 select HAVE_CLK
888 help
889 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
890
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100891config ARCH_VT8500
892 bool "VIA/WonderMedia 85xx"
893 select CPU_ARM926T
894 select GENERIC_GPIO
895 select ARCH_HAS_CPUFREQ
896 select GENERIC_CLOCKEVENTS
897 select ARCH_REQUIRE_GPIOLIB
898 select HAVE_PWM
899 help
900 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901endchoice
902
Russell Kingccf50e22010-03-15 19:03:06 +0000903#
904# This is sorted alphabetically by mach-* pathname. However, plat-*
905# Kconfigs may be included either alphabetically (according to the
906# plat- suffix) or along side the corresponding mach-* source.
907#
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-at91/Kconfig"
909
910source "arch/arm/mach-bcmring/Kconfig"
911
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912source "arch/arm/mach-clps711x/Kconfig"
913
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300914source "arch/arm/mach-cns3xxx/Kconfig"
915
Russell King95b8f202010-01-14 11:43:54 +0000916source "arch/arm/mach-davinci/Kconfig"
917
918source "arch/arm/mach-dove/Kconfig"
919
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000920source "arch/arm/mach-ep93xx/Kconfig"
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922source "arch/arm/mach-footbridge/Kconfig"
923
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200924source "arch/arm/mach-gemini/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-h720x/Kconfig"
927
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928source "arch/arm/mach-integrator/Kconfig"
929
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100930source "arch/arm/mach-iop32x/Kconfig"
931
932source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
Dan Williams285f5fa2006-12-07 02:59:39 +0100934source "arch/arm/mach-iop13xx/Kconfig"
935
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936source "arch/arm/mach-ixp4xx/Kconfig"
937
938source "arch/arm/mach-ixp2000/Kconfig"
939
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100940source "arch/arm/mach-ixp23xx/Kconfig"
941
Russell King95b8f202010-01-14 11:43:54 +0000942source "arch/arm/mach-kirkwood/Kconfig"
943
944source "arch/arm/mach-ks8695/Kconfig"
945
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200946source "arch/arm/mach-loki/Kconfig"
947
Kevin Wells40805942010-07-27 08:49:04 -0700948source "arch/arm/mach-lpc32xx/Kconfig"
949
Russell King95b8f202010-01-14 11:43:54 +0000950source "arch/arm/mach-msm/Kconfig"
951
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200952source "arch/arm/mach-mv78xx0/Kconfig"
953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800956source "arch/arm/mach-mxs/Kconfig"
957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-nomadik/Kconfig"
961source "arch/arm/plat-nomadik/Kconfig"
962
963source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
Russell Kingd91a89102010-02-04 18:13:17 +0000965source "arch/arm/mach-nuc93x/Kconfig"
966
Tony Lindgrend48af152005-07-10 19:58:17 +0100967source "arch/arm/plat-omap/Kconfig"
968
969source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Tony Lindgren1dbae812005-11-10 14:26:51 +0000971source "arch/arm/mach-omap2/Kconfig"
972
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400973source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-pxa/Kconfig"
976source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977
Russell King95b8f202010-01-14 11:43:54 +0000978source "arch/arm/mach-mmp/Kconfig"
979
980source "arch/arm/mach-realview/Kconfig"
981
982source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300983
Ben Dookscf383672009-11-10 00:14:58 +0000984source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100985source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900986source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100987
viresh kumarcee37e52010-04-01 12:31:05 +0100988source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100989
Hans J. Koch83ef3332010-09-17 18:13:56 +0200990source "arch/arm/plat-tcc/Kconfig"
991
Ben Dooksa21765a2007-02-11 18:31:01 +0100992if ARCH_S3C2410
993source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100995source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900996source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100997source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100998source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100999endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
Ben Dooksa08ab632008-10-21 14:06:39 +01001001if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001002source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001003endif
1004
Kukjin Kim49b7a492010-09-07 15:47:18 +09001005source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001006
Kukjin Kim550db7f2010-01-29 10:19:26 +09001007source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +01001008
Byungho Min5a7652f2009-06-23 21:39:42 +09001009source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001010
Kukjin Kim170f4e42010-02-24 16:40:44 +09001011source "arch/arm/mach-s5pv210/Kconfig"
1012
Kukjin Kim10606aa2011-02-14 15:05:27 +09001013source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001014
Russell King882d01f2010-03-02 23:40:15 +00001015source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
Russell King882d01f2010-03-02 23:40:15 +00001017source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001018
Erik Gillingc5f80062010-01-21 16:53:02 -08001019source "arch/arm/mach-tegra/Kconfig"
1020
Russell King95b8f202010-01-14 11:43:54 +00001021source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001022
Russell King95b8f202010-01-14 11:43:54 +00001023source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024
1025source "arch/arm/mach-versatile/Kconfig"
1026
Russell Kingceade892010-02-11 21:44:53 +00001027source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001028source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001029
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001030source "arch/arm/mach-vt8500/Kconfig"
1031
wanzongshun7ec80dd2008-12-03 03:55:38 +01001032source "arch/arm/mach-w90x900/Kconfig"
1033
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034# Definitions to make life easier
1035config ARCH_ACORN
1036 bool
1037
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001038config PLAT_IOP
1039 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001040 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001041 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001042
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001043config PLAT_ORION
1044 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001045 select CLKSRC_MMIO
Russell Kingf06a1622010-12-15 21:55:06 +00001046 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001047
Eric Miaobd5ce432009-01-20 12:06:01 +08001048config PLAT_PXA
1049 bool
1050
Russell Kingf4b8b312010-01-14 12:48:06 +00001051config PLAT_VERSATILE
1052 bool
1053
Russell Kinge3887712010-01-14 13:30:16 +00001054config ARM_TIMER_SP804
1055 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001056 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001057
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058source arch/arm/mm/Kconfig
1059
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001060config IWMMXT
1061 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001062 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1063 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001064 help
1065 Enable support for iWMMXt context switching at run time if
1066 running on a CPU that supports it.
1067
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1069config XSCALE_PMU
1070 bool
1071 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1072 default y
1073
Jamie Iles0f4f0672010-02-02 20:23:15 +01001074config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001075 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001076 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001077 default y
1078 bool
1079
eric miao52108642010-12-13 09:42:34 +01001080config MULTI_IRQ_HANDLER
1081 bool
1082 help
1083 Allow each machine to specify it's own IRQ handler at run time.
1084
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001085if !MMU
1086source "arch/arm/Kconfig-nommu"
1087endif
1088
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001089config ARM_ERRATA_411920
1090 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001091 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001092 help
1093 Invalidation of the Instruction Cache operation can
1094 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1095 It does not affect the MPCore. This option enables the ARM Ltd.
1096 recommended workaround.
1097
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001098config ARM_ERRATA_430973
1099 bool "ARM errata: Stale prediction on replaced interworking branch"
1100 depends on CPU_V7
1101 help
1102 This option enables the workaround for the 430973 Cortex-A8
1103 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1104 interworking branch is replaced with another code sequence at the
1105 same virtual address, whether due to self-modifying code or virtual
1106 to physical address re-mapping, Cortex-A8 does not recover from the
1107 stale interworking branch prediction. This results in Cortex-A8
1108 executing the new code sequence in the incorrect ARM or Thumb state.
1109 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1110 and also flushes the branch target cache at every context switch.
1111 Note that setting specific bits in the ACTLR register may not be
1112 available in non-secure mode.
1113
Catalin Marinas855c5512009-04-30 17:06:15 +01001114config ARM_ERRATA_458693
1115 bool "ARM errata: Processor deadlock when a false hazard is created"
1116 depends on CPU_V7
1117 help
1118 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1119 erratum. For very specific sequences of memory operations, it is
1120 possible for a hazard condition intended for a cache line to instead
1121 be incorrectly associated with a different cache line. This false
1122 hazard might then cause a processor deadlock. The workaround enables
1123 the L1 caching of the NEON accesses and disables the PLD instruction
1124 in the ACTLR register. Note that setting specific bits in the ACTLR
1125 register may not be available in non-secure mode.
1126
Catalin Marinas0516e462009-04-30 17:06:20 +01001127config ARM_ERRATA_460075
1128 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1129 depends on CPU_V7
1130 help
1131 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1132 erratum. Any asynchronous access to the L2 cache may encounter a
1133 situation in which recent store transactions to the L2 cache are lost
1134 and overwritten with stale memory contents from external memory. The
1135 workaround disables the write-allocate mode for the L2 cache via the
1136 ACTLR register. Note that setting specific bits in the ACTLR register
1137 may not be available in non-secure mode.
1138
Will Deacon9f050272010-09-14 09:51:43 +01001139config ARM_ERRATA_742230
1140 bool "ARM errata: DMB operation may be faulty"
1141 depends on CPU_V7 && SMP
1142 help
1143 This option enables the workaround for the 742230 Cortex-A9
1144 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1145 between two write operations may not ensure the correct visibility
1146 ordering of the two writes. This workaround sets a specific bit in
1147 the diagnostic register of the Cortex-A9 which causes the DMB
1148 instruction to behave as a DSB, ensuring the correct behaviour of
1149 the two writes.
1150
Will Deacona672e992010-09-14 09:53:02 +01001151config ARM_ERRATA_742231
1152 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1153 depends on CPU_V7 && SMP
1154 help
1155 This option enables the workaround for the 742231 Cortex-A9
1156 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1157 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1158 accessing some data located in the same cache line, may get corrupted
1159 data due to bad handling of the address hazard when the line gets
1160 replaced from one of the CPUs at the same time as another CPU is
1161 accessing it. This workaround sets specific bits in the diagnostic
1162 register of the Cortex-A9 which reduces the linefill issuing
1163 capabilities of the processor.
1164
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001165config PL310_ERRATA_588369
1166 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001167 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001168 help
1169 The PL310 L2 cache controller implements three types of Clean &
1170 Invalidate maintenance operations: by Physical Address
1171 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1172 They are architecturally defined to behave as the execution of a
1173 clean operation followed immediately by an invalidate operation,
1174 both performing to the same memory location. This functionality
1175 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001176 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001177
1178config ARM_ERRATA_720789
1179 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1180 depends on CPU_V7 && SMP
1181 help
1182 This option enables the workaround for the 720789 Cortex-A9 (prior to
1183 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1184 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1185 As a consequence of this erratum, some TLB entries which should be
1186 invalidated are not, resulting in an incoherency in the system page
1187 tables. The workaround changes the TLB flushing routines to invalidate
1188 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001189
Russell King1f0090a2011-03-16 23:35:25 +00001190config PL310_ERRATA_727915
1191 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1192 depends on CACHE_L2X0
1193 help
1194 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1195 operation (offset 0x7FC). This operation runs in background so that
1196 PL310 can handle normal accesses while it is in progress. Under very
1197 rare circumstances, due to this erratum, write data can be lost when
1198 PL310 treats a cacheable write transaction during a Clean &
1199 Invalidate by Way operation.
1200
Will Deacon475d92f2010-09-28 14:02:02 +01001201config ARM_ERRATA_743622
1202 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1203 depends on CPU_V7
1204 help
1205 This option enables the workaround for the 743622 Cortex-A9
1206 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1207 optimisation in the Cortex-A9 Store Buffer may lead to data
1208 corruption. This workaround sets a specific bit in the diagnostic
1209 register of the Cortex-A9 which disables the Store Buffer
1210 optimisation, preventing the defect from occurring. This has no
1211 visible impact on the overall performance or power consumption of the
1212 processor.
1213
Will Deacon9a27c272011-02-18 16:36:35 +01001214config ARM_ERRATA_751472
1215 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1216 depends on CPU_V7 && SMP
1217 help
1218 This option enables the workaround for the 751472 Cortex-A9 (prior
1219 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1220 completion of a following broadcasted operation if the second
1221 operation is received by a CPU before the ICIALLUIS has completed,
1222 potentially leading to corrupted entries in the cache or TLB.
1223
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001224config ARM_ERRATA_753970
1225 bool "ARM errata: cache sync operation may be faulty"
1226 depends on CACHE_PL310
1227 help
1228 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1229
1230 Under some condition the effect of cache sync operation on
1231 the store buffer still remains when the operation completes.
1232 This means that the store buffer is always asked to drain and
1233 this prevents it from merging any further writes. The workaround
1234 is to replace the normal offset of cache sync operation (0x730)
1235 by another offset targeting an unmapped PL310 register 0x740.
1236 This has the same effect as the cache sync operation: store buffer
1237 drain and waiting for all buffers empty.
1238
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001239config ARM_ERRATA_754322
1240 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1241 depends on CPU_V7
1242 help
1243 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1244 r3p*) erratum. A speculative memory access may cause a page table walk
1245 which starts prior to an ASID switch but completes afterwards. This
1246 can populate the micro-TLB with a stale entry which may be hit with
1247 the new ASID. This workaround places two dsb instructions in the mm
1248 switching code so that no page table walks can cross the ASID switch.
1249
Will Deacon5dab26a2011-03-04 12:38:54 +01001250config ARM_ERRATA_754327
1251 bool "ARM errata: no automatic Store Buffer drain"
1252 depends on CPU_V7 && SMP
1253 help
1254 This option enables the workaround for the 754327 Cortex-A9 (prior to
1255 r2p0) erratum. The Store Buffer does not have any automatic draining
1256 mechanism and therefore a livelock may occur if an external agent
1257 continuously polls a memory location waiting to observe an update.
1258 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1259 written polling loops from denying visibility of updates to memory.
1260
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261endmenu
1262
1263source "arch/arm/common/Kconfig"
1264
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265menu "Bus support"
1266
1267config ARM_AMBA
1268 bool
1269
1270config ISA
1271 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 help
1273 Find out whether you have ISA slots on your motherboard. ISA is the
1274 name of a bus system, i.e. the way the CPU talks to the other stuff
1275 inside your box. Other bus systems are PCI, EISA, MicroChannel
1276 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1277 newer boards don't support it. If you have ISA, say Y, otherwise N.
1278
Russell King065909b2006-01-04 15:44:16 +00001279# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280config ISA_DMA
1281 bool
Russell King065909b2006-01-04 15:44:16 +00001282 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283
Russell King065909b2006-01-04 15:44:16 +00001284# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001285config ISA_DMA_API
1286 bool
Al Viro5cae8412005-05-04 05:39:22 +01001287
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001289 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290 help
1291 Find out whether you have a PCI motherboard. PCI is the name of a
1292 bus system, i.e. the way the CPU talks to the other stuff inside
1293 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1294 VESA. If you have PCI, say Y, otherwise N.
1295
Anton Vorontsov52882172010-04-19 13:20:49 +01001296config PCI_DOMAINS
1297 bool
1298 depends on PCI
1299
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001300config PCI_NANOENGINE
1301 bool "BSE nanoEngine PCI support"
1302 depends on SA1100_NANOENGINE
1303 help
1304 Enable PCI on the BSE nanoEngine board.
1305
Matthew Wilcox36e23592007-07-10 10:54:40 -06001306config PCI_SYSCALL
1307 def_bool PCI
1308
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309# Select the host bridge type
1310config PCI_HOST_VIA82C505
1311 bool
1312 depends on PCI && ARCH_SHARK
1313 default y
1314
Mike Rapoporta0113a92007-11-25 08:55:34 +01001315config PCI_HOST_ITE8152
1316 bool
1317 depends on PCI && MACH_ARMCORE
1318 default y
1319 select DMABOUNCE
1320
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321source "drivers/pci/Kconfig"
1322
1323source "drivers/pcmcia/Kconfig"
1324
1325endmenu
1326
1327menu "Kernel Features"
1328
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001329source "kernel/time/Kconfig"
1330
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331config SMP
1332 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001333 depends on EXPERIMENTAL
Russell Kingfbb4dda2011-01-17 18:01:58 +00001334 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001335 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001336 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001337 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001338 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001339 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001340 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001341 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342 help
1343 This enables support for systems with more than one CPU. If you have
1344 a system with only one CPU, like most personal computers, say N. If
1345 you have a system with more than one CPU, say Y.
1346
1347 If you say N here, the kernel will run on single and multiprocessor
1348 machines, but will use only one CPU of a multiprocessor machine. If
1349 you say Y here, the kernel will run on many, but not all, single
1350 processor machines. On a single processor machine, the kernel will
1351 run faster if you say N here.
1352
Adrian Bunk03502fa2008-02-03 15:50:21 +02001353 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001355 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
1357 If you don't know what to do here, say N.
1358
Russell Kingf00ec482010-09-04 10:47:48 +01001359config SMP_ON_UP
1360 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1361 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001362 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001363 default y
1364 help
1365 SMP kernels contain instructions which fail on non-SMP processors.
1366 Enabling this option allows the kernel to modify itself to make
1367 these instructions safe. Disabling it allows about 1K of space
1368 savings.
1369
1370 If you don't know what to do here, say Y.
1371
Russell Kinga8cbcd92009-05-16 11:51:14 +01001372config HAVE_ARM_SCU
1373 bool
1374 depends on SMP
1375 help
1376 This option enables support for the ARM system coherency unit
1377
Russell Kingf32f4ce2009-05-16 12:14:21 +01001378config HAVE_ARM_TWD
1379 bool
1380 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001381 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001382 help
1383 This options enables support for the ARM timer and watchdog unit
1384
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001385choice
1386 prompt "Memory split"
1387 default VMSPLIT_3G
1388 help
1389 Select the desired split between kernel and user memory.
1390
1391 If you are not absolutely sure what you are doing, leave this
1392 option alone!
1393
1394 config VMSPLIT_3G
1395 bool "3G/1G user/kernel split"
1396 config VMSPLIT_2G
1397 bool "2G/2G user/kernel split"
1398 config VMSPLIT_1G
1399 bool "1G/3G user/kernel split"
1400endchoice
1401
1402config PAGE_OFFSET
1403 hex
1404 default 0x40000000 if VMSPLIT_1G
1405 default 0x80000000 if VMSPLIT_2G
1406 default 0xC0000000
1407
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408config NR_CPUS
1409 int "Maximum number of CPUs (2-32)"
1410 range 2 32
1411 depends on SMP
1412 default "4"
1413
Russell Kinga054a812005-11-02 22:24:33 +00001414config HOTPLUG_CPU
1415 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1416 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001417 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001418 help
1419 Say Y here to experiment with turning CPUs off and on. CPUs
1420 can be controlled through /sys/devices/system/cpu.
1421
Russell King37ee16a2005-11-08 19:08:05 +00001422config LOCAL_TIMERS
1423 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001424 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001425 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001426 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001427 help
1428 Enable support for local timers on SMP platforms, rather then the
1429 legacy IPI broadcast method. Local timers allows the system
1430 accounting to be spread across the timer interval, preventing a
1431 "thundering herd" at every timer tick.
1432
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001433source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434
Russell Kingf8065812006-03-02 22:41:59 +00001435config HZ
1436 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001437 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001438 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001439 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001440 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001441 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001442 default 100
1443
Catalin Marinas16c79652009-07-24 12:33:02 +01001444config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001445 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001446 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001447 select AEABI
1448 select ARM_ASM_UNIFIED
1449 help
1450 By enabling this option, the kernel will be compiled in
1451 Thumb-2 mode. A compiler/assembler that understand the unified
1452 ARM-Thumb syntax is needed.
1453
1454 If unsure, say N.
1455
Dave Martin6f685c52011-03-03 11:41:12 +01001456config THUMB2_AVOID_R_ARM_THM_JUMP11
1457 bool "Work around buggy Thumb-2 short branch relocations in gas"
1458 depends on THUMB2_KERNEL && MODULES
1459 default y
1460 help
1461 Various binutils versions can resolve Thumb-2 branches to
1462 locally-defined, preemptible global symbols as short-range "b.n"
1463 branch instructions.
1464
1465 This is a problem, because there's no guarantee the final
1466 destination of the symbol, or any candidate locations for a
1467 trampoline, are within range of the branch. For this reason, the
1468 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1469 relocation in modules at all, and it makes little sense to add
1470 support.
1471
1472 The symptom is that the kernel fails with an "unsupported
1473 relocation" error when loading some modules.
1474
1475 Until fixed tools are available, passing
1476 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1477 code which hits this problem, at the cost of a bit of extra runtime
1478 stack usage in some cases.
1479
1480 The problem is described in more detail at:
1481 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1482
1483 Only Thumb-2 kernels are affected.
1484
1485 Unless you are sure your tools don't have this problem, say Y.
1486
Catalin Marinas0becb082009-07-24 12:32:53 +01001487config ARM_ASM_UNIFIED
1488 bool
1489
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001490config AEABI
1491 bool "Use the ARM EABI to compile the kernel"
1492 help
1493 This option allows for the kernel to be compiled using the latest
1494 ARM ABI (aka EABI). This is only useful if you are using a user
1495 space environment that is also compiled with EABI.
1496
1497 Since there are major incompatibilities between the legacy ABI and
1498 EABI, especially with regard to structure member alignment, this
1499 option also changes the kernel syscall calling convention to
1500 disambiguate both ABIs and allow for backward compatibility support
1501 (selected with CONFIG_OABI_COMPAT).
1502
1503 To use this you need GCC version 4.0.0 or later.
1504
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001505config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001506 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001507 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001508 default y
1509 help
1510 This option preserves the old syscall interface along with the
1511 new (ARM EABI) one. It also provides a compatibility layer to
1512 intercept syscalls that have structure arguments which layout
1513 in memory differs between the legacy ABI and the new ARM EABI
1514 (only for non "thumb" binaries). This option adds a tiny
1515 overhead to all syscalls and produces a slightly larger kernel.
1516 If you know you'll be using only pure EABI user space then you
1517 can say N here. If this option is not selected and you attempt
1518 to execute a legacy ABI binary then the result will be
1519 UNPREDICTABLE (in fact it can be predicted that it won't work
1520 at all). If in doubt say Y.
1521
Mel Gormaneb335752009-05-13 17:34:48 +01001522config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001523 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001524
Russell King05944d72006-11-30 20:43:51 +00001525config ARCH_SPARSEMEM_ENABLE
1526 bool
1527
Russell King07a2f732008-10-01 21:39:58 +01001528config ARCH_SPARSEMEM_DEFAULT
1529 def_bool ARCH_SPARSEMEM_ENABLE
1530
Russell King05944d72006-11-30 20:43:51 +00001531config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001532 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001533
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001534config HIGHMEM
1535 bool "High Memory Support (EXPERIMENTAL)"
1536 depends on MMU && EXPERIMENTAL
1537 help
1538 The address space of ARM processors is only 4 Gigabytes large
1539 and it has to accommodate user address space, kernel address
1540 space as well as some memory mapped IO. That means that, if you
1541 have a large amount of physical memory and/or IO, not all of the
1542 memory can be "permanently mapped" by the kernel. The physical
1543 memory that is not permanently mapped is called "high memory".
1544
1545 Depending on the selected kernel/user memory split, minimum
1546 vmalloc space and actual amount of RAM, you may not need this
1547 option which should result in a slightly faster kernel.
1548
1549 If unsure, say n.
1550
Russell King65cec8e2009-08-17 20:02:06 +01001551config HIGHPTE
1552 bool "Allocate 2nd-level pagetables from highmem"
1553 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001554
Jamie Iles1b8873a2010-02-02 20:25:44 +01001555config HW_PERF_EVENTS
1556 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001557 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001558 default y
1559 help
1560 Enable hardware performance counter support for perf events. If
1561 disabled, perf events will use software events only.
1562
Dave Hansen3f22ab22005-06-23 00:07:43 -07001563source "mm/Kconfig"
1564
Magnus Dammc1b2d972010-07-05 10:00:11 +01001565config FORCE_MAX_ZONEORDER
1566 int "Maximum zone order" if ARCH_SHMOBILE
1567 range 11 64 if ARCH_SHMOBILE
1568 default "9" if SA1111
1569 default "11"
1570 help
1571 The kernel memory allocator divides physically contiguous memory
1572 blocks into "zones", where each zone is a power of two number of
1573 pages. This option selects the largest power of two that the kernel
1574 keeps in the memory allocator. If you need to allocate very large
1575 blocks of physically contiguous memory, then you may need to
1576 increase this value.
1577
1578 This config option is actually maximum order plus one. For example,
1579 a value of 11 means that the largest free memory block is 2^10 pages.
1580
Linus Torvalds1da177e2005-04-16 15:20:36 -07001581config LEDS
1582 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001583 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001584 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1586 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001587 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001588 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001589 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590 help
1591 If you say Y here, the LEDs on your machine will be used
1592 to provide useful information about your current system status.
1593
1594 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1595 be able to select which LEDs are active using the options below. If
1596 you are compiling a kernel for the EBSA-110 or the LART however, the
1597 red LED will simply flash regularly to indicate that the system is
1598 still functional. It is safe to say Y here if you have a CATS
1599 system, but the driver will do nothing.
1600
1601config LEDS_TIMER
1602 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001603 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1604 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001605 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001606 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 default y if ARCH_EBSA110
1608 help
1609 If you say Y here, one of the system LEDs (the green one on the
1610 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1611 will flash regularly to indicate that the system is still
1612 operational. This is mainly useful to kernel hackers who are
1613 debugging unstable kernels.
1614
1615 The LART uses the same LED for both Timer LED and CPU usage LED
1616 functions. You may choose to use both, but the Timer LED function
1617 will overrule the CPU usage LED.
1618
1619config LEDS_CPU
1620 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001621 !ARCH_OMAP) \
1622 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1623 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624 depends on LEDS
1625 help
1626 If you say Y here, the red LED will be used to give a good real
1627 time indication of CPU usage, by lighting whenever the idle task
1628 is not currently executing.
1629
1630 The LART uses the same LED for both Timer LED and CPU usage LED
1631 functions. You may choose to use both, but the Timer LED function
1632 will overrule the CPU usage LED.
1633
1634config ALIGNMENT_TRAP
1635 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001636 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001637 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001638 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001640 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001641 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1642 address divisible by 4. On 32-bit ARM processors, these non-aligned
1643 fetch/store instructions will be emulated in software if you say
1644 here, which has a severe performance impact. This is necessary for
1645 correct operation of some network protocols. With an IP-only
1646 configuration it is safe to say N, otherwise say Y.
1647
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001648config UACCESS_WITH_MEMCPY
1649 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1650 depends on MMU && EXPERIMENTAL
1651 default y if CPU_FEROCEON
1652 help
1653 Implement faster copy_to_user and clear_user methods for CPU
1654 cores where a 8-word STM instruction give significantly higher
1655 memory write throughput than a sequence of individual 32bit stores.
1656
1657 A possible side effect is a slight increase in scheduling latency
1658 between threads sharing the same address space if they invoke
1659 such copy operations with large buffers.
1660
1661 However, if the CPU data cache is using a write-allocate mode,
1662 this option is unlikely to provide any performance gain.
1663
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001664config SECCOMP
1665 bool
1666 prompt "Enable seccomp to safely compute untrusted bytecode"
1667 ---help---
1668 This kernel feature is useful for number crunching applications
1669 that may need to compute untrusted bytecode during their
1670 execution. By using pipes or other transports made available to
1671 the process as file descriptors supporting the read/write
1672 syscalls, it's possible to isolate those applications in
1673 their own address space using seccomp. Once seccomp is
1674 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1675 and the task is only allowed to execute a few safe syscalls
1676 defined by each seccomp mode.
1677
Nicolas Pitrec743f382010-05-24 23:55:42 -04001678config CC_STACKPROTECTOR
1679 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001680 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001681 help
1682 This option turns on the -fstack-protector GCC feature. This
1683 feature puts, at the beginning of functions, a canary value on
1684 the stack just before the return address, and validates
1685 the value just before actually returning. Stack based buffer
1686 overflows (that need to overwrite this return address) now also
1687 overwrite the canary, which gets detected and the attack is then
1688 neutralized via a kernel panic.
1689 This feature requires gcc version 4.2 or above.
1690
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001691config DEPRECATED_PARAM_STRUCT
1692 bool "Provide old way to pass kernel parameters"
1693 help
1694 This was deprecated in 2001 and announced to live on for 5 years.
1695 Some old boot loaders still use this way.
1696
Linus Torvalds1da177e2005-04-16 15:20:36 -07001697endmenu
1698
1699menu "Boot options"
1700
1701# Compressed boot loader in ROM. Yes, we really want to ask about
1702# TEXT and BSS so we preserve their values in the config files.
1703config ZBOOT_ROM_TEXT
1704 hex "Compressed ROM boot loader base address"
1705 default "0"
1706 help
1707 The physical address at which the ROM-able zImage is to be
1708 placed in the target. Platforms which normally make use of
1709 ROM-able zImage formats normally set this to a suitable
1710 value in their defconfig file.
1711
1712 If ZBOOT_ROM is not enabled, this has no effect.
1713
1714config ZBOOT_ROM_BSS
1715 hex "Compressed ROM boot loader BSS address"
1716 default "0"
1717 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001718 The base address of an area of read/write memory in the target
1719 for the ROM-able zImage which must be available while the
1720 decompressor is running. It must be large enough to hold the
1721 entire decompressed kernel plus an additional 128 KiB.
1722 Platforms which normally make use of ROM-able zImage formats
1723 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724
1725 If ZBOOT_ROM is not enabled, this has no effect.
1726
1727config ZBOOT_ROM
1728 bool "Compressed boot loader in ROM/flash"
1729 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1730 help
1731 Say Y here if you intend to execute your compressed kernel image
1732 (zImage) directly from ROM or flash. If unsure, say N.
1733
Simon Hormanf45b1142011-01-11 04:01:08 +01001734config ZBOOT_ROM_MMCIF
1735 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1736 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1737 help
1738 Say Y here to include experimental MMCIF loading code in the
1739 ROM-able zImage. With this enabled it is possible to write the
1740 the ROM-able zImage kernel image to an MMC card and boot the
1741 kernel straight from the reset vector. At reset the processor
1742 Mask ROM will load the first part of the the ROM-able zImage
1743 which in turn loads the rest the kernel image to RAM using the
1744 MMCIF hardware block.
1745
Linus Torvalds1da177e2005-04-16 15:20:36 -07001746config CMDLINE
1747 string "Default kernel command string"
1748 default ""
1749 help
1750 On some architectures (EBSA110 and CATS), there is currently no way
1751 for the boot loader to pass arguments to the kernel. For these
1752 architectures, you should supply some command-line options at build
1753 time by entering them here. As a minimum, you should specify the
1754 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1755
Alexander Holler92d20402010-02-16 19:04:53 +01001756config CMDLINE_FORCE
1757 bool "Always use the default kernel command string"
1758 depends on CMDLINE != ""
1759 help
1760 Always use the default kernel command string, even if the boot
1761 loader passes other arguments to the kernel.
1762 This is useful if you cannot or don't want to change the
1763 command-line options your boot loader passes to the kernel.
1764
1765 If unsure, say N.
1766
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767config XIP_KERNEL
1768 bool "Kernel Execute-In-Place from ROM"
1769 depends on !ZBOOT_ROM
1770 help
1771 Execute-In-Place allows the kernel to run from non-volatile storage
1772 directly addressable by the CPU, such as NOR flash. This saves RAM
1773 space since the text section of the kernel is not loaded from flash
1774 to RAM. Read-write sections, such as the data section and stack,
1775 are still copied to RAM. The XIP kernel is not compressed since
1776 it has to run directly from flash, so it will take more space to
1777 store it. The flash address used to link the kernel object files,
1778 and for storing it, is configuration dependent. Therefore, if you
1779 say Y here, you must know the proper physical address where to
1780 store the kernel image depending on your own flash memory usage.
1781
1782 Also note that the make target becomes "make xipImage" rather than
1783 "make zImage" or "make Image". The final kernel binary to put in
1784 ROM memory will be arch/arm/boot/xipImage.
1785
1786 If unsure, say N.
1787
1788config XIP_PHYS_ADDR
1789 hex "XIP Kernel Physical Location"
1790 depends on XIP_KERNEL
1791 default "0x00080000"
1792 help
1793 This is the physical address in your flash memory the kernel will
1794 be linked for and stored to. This address is dependent on your
1795 own flash usage.
1796
Richard Purdiec587e4a2007-02-06 21:29:00 +01001797config KEXEC
1798 bool "Kexec system call (EXPERIMENTAL)"
1799 depends on EXPERIMENTAL
1800 help
1801 kexec is a system call that implements the ability to shutdown your
1802 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001803 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001804 you can start any kernel with it, not just Linux.
1805
1806 It is an ongoing process to be certain the hardware in a machine
1807 is properly shutdown, so do not be surprised if this code does not
1808 initially work for you. It may help to enable device hotplugging
1809 support.
1810
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001811config ATAGS_PROC
1812 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001813 depends on KEXEC
1814 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001815 help
1816 Should the atags used to boot the kernel be exported in an "atags"
1817 file in procfs. Useful with kexec.
1818
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001819config CRASH_DUMP
1820 bool "Build kdump crash kernel (EXPERIMENTAL)"
1821 depends on EXPERIMENTAL
1822 help
1823 Generate crash dump after being started by kexec. This should
1824 be normally only set in special crash dump kernels which are
1825 loaded in the main kernel with kexec-tools into a specially
1826 reserved region and then later executed after a crash by
1827 kdump/kexec. The crash dump kernel must be compiled to a
1828 memory address not used by the main kernel
1829
1830 For more details see Documentation/kdump/kdump.txt
1831
Eric Miaoe69edc792010-07-05 15:56:50 +02001832config AUTO_ZRELADDR
1833 bool "Auto calculation of the decompressed kernel image address"
1834 depends on !ZBOOT_ROM && !ARCH_U300
1835 help
1836 ZRELADDR is the physical address where the decompressed kernel
1837 image will be placed. If AUTO_ZRELADDR is selected, the address
1838 will be determined at run-time by masking the current IP with
1839 0xf8000000. This assumes the zImage being placed in the first 128MB
1840 from start of memory.
1841
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842endmenu
1843
Russell Kingac9d7ef2008-08-18 17:26:00 +01001844menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845
Ben Dooks89c52ed2009-07-30 23:23:24 +01001846if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847
1848source "drivers/cpufreq/Kconfig"
1849
Yong Shen64f102b2010-10-21 21:18:59 +08001850config CPU_FREQ_IMX
1851 tristate "CPUfreq driver for i.MX CPUs"
1852 depends on ARCH_MXC && CPU_FREQ
1853 help
1854 This enables the CPUfreq driver for i.MX CPUs.
1855
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856config CPU_FREQ_SA1100
1857 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858
1859config CPU_FREQ_SA1110
1860 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861
1862config CPU_FREQ_INTEGRATOR
1863 tristate "CPUfreq driver for ARM Integrator CPUs"
1864 depends on ARCH_INTEGRATOR && CPU_FREQ
1865 default y
1866 help
1867 This enables the CPUfreq driver for ARM Integrator CPUs.
1868
1869 For details, take a look at <file:Documentation/cpu-freq>.
1870
1871 If in doubt, say Y.
1872
Russell King9e2697f2007-12-14 13:30:14 +00001873config CPU_FREQ_PXA
1874 bool
1875 depends on CPU_FREQ && ARCH_PXA && PXA25x
1876 default y
1877 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1878
Mark Brownb3748dd2009-06-15 11:23:20 +01001879config CPU_FREQ_S3C64XX
1880 bool "CPUfreq support for Samsung S3C64XX CPUs"
1881 depends on CPU_FREQ && CPU_S3C6410
1882
Ben Dooks9d56c022009-07-30 23:23:25 +01001883config CPU_FREQ_S3C
1884 bool
1885 help
1886 Internal configuration node for common cpufreq on Samsung SoC
1887
1888config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001889 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001890 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1891 select CPU_FREQ_S3C
1892 help
1893 This enables the CPUfreq driver for the Samsung S3C24XX family
1894 of CPUs.
1895
1896 For details, take a look at <file:Documentation/cpu-freq>.
1897
1898 If in doubt, say N.
1899
1900config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001901 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001902 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1903 help
1904 Compile in support for changing the PLL frequency from the
1905 S3C24XX series CPUfreq driver. The PLL takes time to settle
1906 after a frequency change, so by default it is not enabled.
1907
1908 This also means that the PLL tables for the selected CPU(s) will
1909 be built which may increase the size of the kernel image.
1910
1911config CPU_FREQ_S3C24XX_DEBUG
1912 bool "Debug CPUfreq Samsung driver core"
1913 depends on CPU_FREQ_S3C24XX
1914 help
1915 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1916
1917config CPU_FREQ_S3C24XX_IODEBUG
1918 bool "Debug CPUfreq Samsung driver IO timing"
1919 depends on CPU_FREQ_S3C24XX
1920 help
1921 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1922
Ben Dookse6d197a2009-07-30 23:23:42 +01001923config CPU_FREQ_S3C24XX_DEBUGFS
1924 bool "Export debugfs for CPUFreq"
1925 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1926 help
1927 Export status information via debugfs.
1928
Linus Torvalds1da177e2005-04-16 15:20:36 -07001929endif
1930
Russell Kingac9d7ef2008-08-18 17:26:00 +01001931source "drivers/cpuidle/Kconfig"
1932
1933endmenu
1934
Linus Torvalds1da177e2005-04-16 15:20:36 -07001935menu "Floating point emulation"
1936
1937comment "At least one emulation must be selected"
1938
1939config FPE_NWFPE
1940 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001941 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001942 ---help---
1943 Say Y to include the NWFPE floating point emulator in the kernel.
1944 This is necessary to run most binaries. Linux does not currently
1945 support floating point hardware so you need to say Y here even if
1946 your machine has an FPA or floating point co-processor podule.
1947
1948 You may say N here if you are going to load the Acorn FPEmulator
1949 early in the bootup.
1950
1951config FPE_NWFPE_XP
1952 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001953 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001954 help
1955 Say Y to include 80-bit support in the kernel floating-point
1956 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1957 Note that gcc does not generate 80-bit operations by default,
1958 so in most cases this option only enlarges the size of the
1959 floating point emulator without any good reason.
1960
1961 You almost surely want to say N here.
1962
1963config FPE_FASTFPE
1964 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001965 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001966 ---help---
1967 Say Y here to include the FAST floating point emulator in the kernel.
1968 This is an experimental much faster emulator which now also has full
1969 precision for the mantissa. It does not support any exceptions.
1970 It is very simple, and approximately 3-6 times faster than NWFPE.
1971
1972 It should be sufficient for most programs. It may be not suitable
1973 for scientific calculations, but you have to check this for yourself.
1974 If you do not feel you need a faster FP emulation you should better
1975 choose NWFPE.
1976
1977config VFP
1978 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001979 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980 help
1981 Say Y to include VFP support code in the kernel. This is needed
1982 if your hardware includes a VFP unit.
1983
1984 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1985 release notes and additional status information.
1986
1987 Say N if your target does not have VFP hardware.
1988
Catalin Marinas25ebee02007-09-25 15:22:24 +01001989config VFPv3
1990 bool
1991 depends on VFP
1992 default y if CPU_V7
1993
Catalin Marinasb5872db2008-01-10 19:16:17 +01001994config NEON
1995 bool "Advanced SIMD (NEON) Extension support"
1996 depends on VFPv3 && CPU_V7
1997 help
1998 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1999 Extension.
2000
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001endmenu
2002
2003menu "Userspace binary formats"
2004
2005source "fs/Kconfig.binfmt"
2006
2007config ARTHUR
2008 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002009 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002010 help
2011 Say Y here to include the kernel code necessary if you want to run
2012 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2013 experimental; if this sounds frightening, say N and sleep in peace.
2014 You can also say M here to compile this support as a module (which
2015 will be called arthur).
2016
2017endmenu
2018
2019menu "Power management options"
2020
Russell Kingeceab4a2005-11-15 11:31:41 +00002021source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002022
Johannes Bergf4cb5702007-12-08 02:14:00 +01002023config ARCH_SUSPEND_POSSIBLE
Kukjin Kim3e1d9872011-03-25 20:09:26 +09002024 depends on !ARCH_S5P64X0 && !ARCH_S5P6442
Russell King6a786182011-04-02 10:15:28 +01002025 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2026 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002027 def_bool y
2028
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029endmenu
2030
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002031source "net/Kconfig"
2032
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002033source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034
2035source "fs/Kconfig"
2036
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037source "arch/arm/Kconfig.debug"
2038
2039source "security/Kconfig"
2040
2041source "crypto/Kconfig"
2042
2043source "lib/Kconfig"