blob: bab25a0ba1070a9a7fafa624184a6c55e3734289 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 help
33 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000034 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000036 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 Europe. There is an ARM Linux project with a web page at
38 <http://www.arm.linux.org.uk/>.
39
Russell King1a189b92008-04-13 21:41:55 +010040config HAVE_PWM
41 bool
42
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010043config MIGHT_HAVE_PCI
44 bool
45
Ralf Baechle75e71532007-02-09 17:08:58 +000046config SYS_SUPPORTS_APM_EMULATION
47 bool
48
Russell King112f38a42010-12-15 19:23:07 +000049config HAVE_SCHED_CLOCK
50 bool
51
David Brownell0a938b92007-03-05 00:30:18 -080052config GENERIC_GPIO
53 bool
David Brownell0a938b92007-03-05 00:30:18 -080054
John Stultz5cfc8ee2010-03-24 00:22:36 +000055config ARCH_USES_GETTIMEOFFSET
56 bool
57 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010058
Kevin Hilman0567a0c2007-03-13 20:29:24 +010059config GENERIC_CLOCKEVENTS
60 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010061
Catalin Marinasa8655e82008-02-04 17:30:57 +010062config GENERIC_CLOCKEVENTS_BROADCAST
63 bool
64 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010065 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config GENERIC_ISA_DMA
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config FIQ
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
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
Russell King6fa5d5f2011-05-08 15:34:39 +0100578 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100579 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200580 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100581 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
582 At present, the w90x900 has been renamed nuc900, regarding
583 the ARM series product line, you can login the following
584 link address to know more.
585
586 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
587 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400588
wanzongshuna62e9032009-12-31 15:06:05 +0100589config ARCH_NUC93X
590 bool "Nuvoton NUC93X CPU"
591 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100592 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100593 help
594 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
595 low-power and high performance MPEG-4/JPEG multimedia controller chip.
596
Erik Gillingc5f80062010-01-21 16:53:02 -0800597config ARCH_TEGRA
598 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000599 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100600 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800601 select GENERIC_TIME
602 select GENERIC_CLOCKEVENTS
603 select GENERIC_GPIO
604 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000605 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800606 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700607 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800608 help
609 This enables support for NVIDIA Tegra based systems (Tegra APX,
610 Tegra 6xx and Tegra 2 series).
611
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100612config ARCH_PNX4008
613 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000614 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100615 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000616 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100617 help
618 This enables support for Philips PNX4008 mobile platform.
619
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700621 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100622 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500623 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100624 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100625 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100626 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700627 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100628 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000629 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000630 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800631 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800632 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000633 help
eric miao2c8086a2007-09-11 19:13:17 -0700634 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635
Russell King788c9702009-04-26 14:21:59 +0100636config ARCH_MSM
637 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500638 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800639 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700640 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800641 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800642 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800643 Support for Qualcomm MSM/QSD based systems. This runs on the
644 apps processor of the MSM/QSD and depends on a shared memory
645 interface to the modem processor which runs the baseband
646 stack and controls some vital subsystems
647 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800648
Magnus Dammc793c1b2010-02-05 11:14:49 +0000649config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900650 bool "Renesas SH-Mobile / R-Mobile"
651 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900652 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900653 select GENERIC_CLOCKEVENTS
654 select NO_IOPORT
655 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000656 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000657 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900658 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000659
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660config ARCH_RPC
661 bool "RiscPC"
662 select ARCH_ACORN
663 select FIQ
664 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100665 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100666 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000667 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000668 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100669 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000670 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 help
672 On the Acorn Risc-PC, Linux can support the internal IDE disk and
673 CD-ROM interface, serial and parallel port, and the floppy drive.
674
675config ARCH_SA1100
676 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100677 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000678 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100679 select ISA
Russell King05944d72006-11-30 20:43:51 +0000680 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500681 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100682 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000683 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100684 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700685 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000686 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100687 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700688 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000689 help
690 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691
692config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900693 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800694 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100695 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700696 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000697 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900698 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 help
700 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
701 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000702 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703
Ben Dooks63b1f512010-04-30 16:32:26 +0900704 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300705 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900706 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
707
Ben Dooksa08ab632008-10-21 14:06:39 +0100708config ARCH_S3C64XX
709 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000710 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900711 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900712 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100713 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900714 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000715 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100716 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900717 select ARCH_REQUIRE_GPIOLIB
718 select SAMSUNG_CLKSRC
719 select SAMSUNG_IRQ_VIC_TIMER
720 select SAMSUNG_IRQ_UART
721 select S3C_GPIO_TRACK
722 select S3C_GPIO_PULL_UPDOWN
723 select S3C_GPIO_CFG_S3C24XX
724 select S3C_GPIO_CFG_S3C64XX
725 select S3C_DEV_NAND
726 select USB_ARCH_HAS_OHCI
727 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900728 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900729 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100730 help
731 Samsung S3C64XX series based systems
732
Kukjin Kim49b7a492010-09-07 15:47:18 +0900733config ARCH_S5P64X0
734 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900735 select CPU_V6
736 select GENERIC_GPIO
737 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900738 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900739 select GENERIC_CLOCKEVENTS
740 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900741 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900742 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900743 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900744 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
745 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900746
Kukjin Kim550db7f2010-01-29 10:19:26 +0900747config ARCH_S5P6442
748 bool "Samsung S5P6442"
749 select CPU_V6
750 select GENERIC_GPIO
751 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900752 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900753 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900754 help
755 Samsung S5P6442 CPU based systems
756
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200757config ARCH_S5PC100
758 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900759 select GENERIC_GPIO
760 select HAVE_CLK
761 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100762 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900763 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900764 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900765 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900766 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900767 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200768 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900769
Kukjin Kim170f4e42010-02-24 16:40:44 +0900770config ARCH_S5PV210
771 bool "Samsung S5PV210/S5PC110"
772 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900773 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900774 select GENERIC_GPIO
775 select HAVE_CLK
776 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900777 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900778 select GENERIC_CLOCKEVENTS
779 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900780 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900781 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900782 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900783 help
784 Samsung S5PV210/S5PC110 series based systems
785
Kukjin Kim10606aa2011-02-14 15:05:27 +0900786config ARCH_EXYNOS4
787 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900788 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900789 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900790 select GENERIC_GPIO
791 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900792 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900793 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900794 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900795 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900796 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900797 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900798 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900799
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800config ARCH_SHARK
801 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000802 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100803 select ISA
804 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100805 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100806 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000807 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000808 help
809 Support for the StrongARM based Digital DNARD machine, also known
810 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811
Hans J. Koch83ef3332010-09-17 18:13:56 +0200812config ARCH_TCC_926
813 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100814 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200815 select CPU_ARM926T
816 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100817 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200818 select GENERIC_CLOCKEVENTS
819 help
820 Support for Telechips TCC ARM926-based systems.
821
Linus Walleijd98aac72009-04-27 10:21:46 +0100822config ARCH_U300
823 bool "ST-Ericsson U300 Series"
824 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100825 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100826 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000827 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100828 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100829 select ARM_AMBA
830 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100831 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100832 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100833 select GENERIC_GPIO
834 help
835 Support for ST-Ericsson U300 series mobile platforms.
836
Russell Kingccf50e22010-03-15 19:03:06 +0000837config ARCH_U8500
838 bool "ST-Ericsson U8500 Series"
839 select CPU_V7
840 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000841 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100842 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100843 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100844 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000845 help
846 Support for ST-Ericsson's Ux500 architecture
847
848config ARCH_NOMADIK
849 bool "STMicroelectronics Nomadik"
850 select ARM_AMBA
851 select ARM_VIC
852 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100853 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000854 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000855 select ARCH_REQUIRE_GPIOLIB
856 help
857 Support for the Nomadik platform by ST-Ericsson
858
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100859config ARCH_DAVINCI
860 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100861 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700862 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100863 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700864 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100865 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700866 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530867 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100868 help
869 Support for TI's DaVinci platform.
870
Russell King3b938be2007-05-12 11:25:44 +0100871config ARCH_OMAP
872 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700873 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700874 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100875 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700876 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000877 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800878 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100879 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200880 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100881
viresh kumarcee37e52010-04-01 12:31:05 +0100882config PLAT_SPEAR
883 bool "ST SPEAr"
884 select ARM_AMBA
885 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100886 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100887 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100888 select HAVE_CLK
889 help
890 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
891
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100892config ARCH_VT8500
893 bool "VIA/WonderMedia 85xx"
894 select CPU_ARM926T
895 select GENERIC_GPIO
896 select ARCH_HAS_CPUFREQ
897 select GENERIC_CLOCKEVENTS
898 select ARCH_REQUIRE_GPIOLIB
899 select HAVE_PWM
900 help
901 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700902endchoice
903
Russell Kingccf50e22010-03-15 19:03:06 +0000904#
905# This is sorted alphabetically by mach-* pathname. However, plat-*
906# Kconfigs may be included either alphabetically (according to the
907# plat- suffix) or along side the corresponding mach-* source.
908#
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-at91/Kconfig"
910
911source "arch/arm/mach-bcmring/Kconfig"
912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913source "arch/arm/mach-clps711x/Kconfig"
914
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300915source "arch/arm/mach-cns3xxx/Kconfig"
916
Russell King95b8f202010-01-14 11:43:54 +0000917source "arch/arm/mach-davinci/Kconfig"
918
919source "arch/arm/mach-dove/Kconfig"
920
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000921source "arch/arm/mach-ep93xx/Kconfig"
922
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923source "arch/arm/mach-footbridge/Kconfig"
924
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200925source "arch/arm/mach-gemini/Kconfig"
926
Russell King95b8f202010-01-14 11:43:54 +0000927source "arch/arm/mach-h720x/Kconfig"
928
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929source "arch/arm/mach-integrator/Kconfig"
930
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100931source "arch/arm/mach-iop32x/Kconfig"
932
933source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934
Dan Williams285f5fa2006-12-07 02:59:39 +0100935source "arch/arm/mach-iop13xx/Kconfig"
936
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937source "arch/arm/mach-ixp4xx/Kconfig"
938
939source "arch/arm/mach-ixp2000/Kconfig"
940
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100941source "arch/arm/mach-ixp23xx/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-kirkwood/Kconfig"
944
945source "arch/arm/mach-ks8695/Kconfig"
946
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200947source "arch/arm/mach-loki/Kconfig"
948
Kevin Wells40805942010-07-27 08:49:04 -0700949source "arch/arm/mach-lpc32xx/Kconfig"
950
Russell King95b8f202010-01-14 11:43:54 +0000951source "arch/arm/mach-msm/Kconfig"
952
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200953source "arch/arm/mach-mv78xx0/Kconfig"
954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800957source "arch/arm/mach-mxs/Kconfig"
958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800960
Russell King95b8f202010-01-14 11:43:54 +0000961source "arch/arm/mach-nomadik/Kconfig"
962source "arch/arm/plat-nomadik/Kconfig"
963
964source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965
Russell Kingd91a89102010-02-04 18:13:17 +0000966source "arch/arm/mach-nuc93x/Kconfig"
967
Tony Lindgrend48af152005-07-10 19:58:17 +0100968source "arch/arm/plat-omap/Kconfig"
969
970source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Tony Lindgren1dbae812005-11-10 14:26:51 +0000972source "arch/arm/mach-omap2/Kconfig"
973
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400974source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400975
Russell King95b8f202010-01-14 11:43:54 +0000976source "arch/arm/mach-pxa/Kconfig"
977source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978
Russell King95b8f202010-01-14 11:43:54 +0000979source "arch/arm/mach-mmp/Kconfig"
980
981source "arch/arm/mach-realview/Kconfig"
982
983source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300984
Ben Dookscf383672009-11-10 00:14:58 +0000985source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100986source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900987source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100988
viresh kumarcee37e52010-04-01 12:31:05 +0100989source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100990
Hans J. Koch83ef3332010-09-17 18:13:56 +0200991source "arch/arm/plat-tcc/Kconfig"
992
Ben Dooksa21765a2007-02-11 18:31:01 +0100993if ARCH_S3C2410
994source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100996source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900997source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100998source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100999source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001000endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Ben Dooksa08ab632008-10-21 14:06:39 +01001002if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001003source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001004endif
1005
Kukjin Kim49b7a492010-09-07 15:47:18 +09001006source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001007
Kukjin Kim550db7f2010-01-29 10:19:26 +09001008source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +01001009
Byungho Min5a7652f2009-06-23 21:39:42 +09001010source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001011
Kukjin Kim170f4e42010-02-24 16:40:44 +09001012source "arch/arm/mach-s5pv210/Kconfig"
1013
Kukjin Kim10606aa2011-02-14 15:05:27 +09001014source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001015
Russell King882d01f2010-03-02 23:40:15 +00001016source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
Russell King882d01f2010-03-02 23:40:15 +00001018source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001019
Erik Gillingc5f80062010-01-21 16:53:02 -08001020source "arch/arm/mach-tegra/Kconfig"
1021
Russell King95b8f202010-01-14 11:43:54 +00001022source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001023
Russell King95b8f202010-01-14 11:43:54 +00001024source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
1026source "arch/arm/mach-versatile/Kconfig"
1027
Russell Kingceade892010-02-11 21:44:53 +00001028source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001029source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001030
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001031source "arch/arm/mach-vt8500/Kconfig"
1032
wanzongshun7ec80dd2008-12-03 03:55:38 +01001033source "arch/arm/mach-w90x900/Kconfig"
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035# Definitions to make life easier
1036config ARCH_ACORN
1037 bool
1038
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001039config PLAT_IOP
1040 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001041 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001042 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001043
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001044config PLAT_ORION
1045 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001046 select CLKSRC_MMIO
Russell Kingf06a1622010-12-15 21:55:06 +00001047 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001048
Eric Miaobd5ce432009-01-20 12:06:01 +08001049config PLAT_PXA
1050 bool
1051
Russell Kingf4b8b312010-01-14 12:48:06 +00001052config PLAT_VERSATILE
1053 bool
1054
Russell Kinge3887712010-01-14 13:30:16 +00001055config ARM_TIMER_SP804
1056 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001057 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001058
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059source arch/arm/mm/Kconfig
1060
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001061config IWMMXT
1062 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001063 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1064 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001065 help
1066 Enable support for iWMMXt context switching at run time if
1067 running on a CPU that supports it.
1068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1070config XSCALE_PMU
1071 bool
1072 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1073 default y
1074
Jamie Iles0f4f0672010-02-02 20:23:15 +01001075config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001076 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001077 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001078 default y
1079 bool
1080
eric miao52108642010-12-13 09:42:34 +01001081config MULTI_IRQ_HANDLER
1082 bool
1083 help
1084 Allow each machine to specify it's own IRQ handler at run time.
1085
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001086if !MMU
1087source "arch/arm/Kconfig-nommu"
1088endif
1089
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001090config ARM_ERRATA_411920
1091 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001092 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001093 help
1094 Invalidation of the Instruction Cache operation can
1095 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1096 It does not affect the MPCore. This option enables the ARM Ltd.
1097 recommended workaround.
1098
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001099config ARM_ERRATA_430973
1100 bool "ARM errata: Stale prediction on replaced interworking branch"
1101 depends on CPU_V7
1102 help
1103 This option enables the workaround for the 430973 Cortex-A8
1104 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1105 interworking branch is replaced with another code sequence at the
1106 same virtual address, whether due to self-modifying code or virtual
1107 to physical address re-mapping, Cortex-A8 does not recover from the
1108 stale interworking branch prediction. This results in Cortex-A8
1109 executing the new code sequence in the incorrect ARM or Thumb state.
1110 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1111 and also flushes the branch target cache at every context switch.
1112 Note that setting specific bits in the ACTLR register may not be
1113 available in non-secure mode.
1114
Catalin Marinas855c5512009-04-30 17:06:15 +01001115config ARM_ERRATA_458693
1116 bool "ARM errata: Processor deadlock when a false hazard is created"
1117 depends on CPU_V7
1118 help
1119 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1120 erratum. For very specific sequences of memory operations, it is
1121 possible for a hazard condition intended for a cache line to instead
1122 be incorrectly associated with a different cache line. This false
1123 hazard might then cause a processor deadlock. The workaround enables
1124 the L1 caching of the NEON accesses and disables the PLD instruction
1125 in the ACTLR register. Note that setting specific bits in the ACTLR
1126 register may not be available in non-secure mode.
1127
Catalin Marinas0516e462009-04-30 17:06:20 +01001128config ARM_ERRATA_460075
1129 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1130 depends on CPU_V7
1131 help
1132 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1133 erratum. Any asynchronous access to the L2 cache may encounter a
1134 situation in which recent store transactions to the L2 cache are lost
1135 and overwritten with stale memory contents from external memory. The
1136 workaround disables the write-allocate mode for the L2 cache via the
1137 ACTLR register. Note that setting specific bits in the ACTLR register
1138 may not be available in non-secure mode.
1139
Will Deacon9f050272010-09-14 09:51:43 +01001140config ARM_ERRATA_742230
1141 bool "ARM errata: DMB operation may be faulty"
1142 depends on CPU_V7 && SMP
1143 help
1144 This option enables the workaround for the 742230 Cortex-A9
1145 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1146 between two write operations may not ensure the correct visibility
1147 ordering of the two writes. This workaround sets a specific bit in
1148 the diagnostic register of the Cortex-A9 which causes the DMB
1149 instruction to behave as a DSB, ensuring the correct behaviour of
1150 the two writes.
1151
Will Deacona672e992010-09-14 09:53:02 +01001152config ARM_ERRATA_742231
1153 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1154 depends on CPU_V7 && SMP
1155 help
1156 This option enables the workaround for the 742231 Cortex-A9
1157 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1158 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1159 accessing some data located in the same cache line, may get corrupted
1160 data due to bad handling of the address hazard when the line gets
1161 replaced from one of the CPUs at the same time as another CPU is
1162 accessing it. This workaround sets specific bits in the diagnostic
1163 register of the Cortex-A9 which reduces the linefill issuing
1164 capabilities of the processor.
1165
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001166config PL310_ERRATA_588369
1167 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001168 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001169 help
1170 The PL310 L2 cache controller implements three types of Clean &
1171 Invalidate maintenance operations: by Physical Address
1172 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1173 They are architecturally defined to behave as the execution of a
1174 clean operation followed immediately by an invalidate operation,
1175 both performing to the same memory location. This functionality
1176 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001177 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001178
1179config ARM_ERRATA_720789
1180 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1181 depends on CPU_V7 && SMP
1182 help
1183 This option enables the workaround for the 720789 Cortex-A9 (prior to
1184 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1185 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1186 As a consequence of this erratum, some TLB entries which should be
1187 invalidated are not, resulting in an incoherency in the system page
1188 tables. The workaround changes the TLB flushing routines to invalidate
1189 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001190
Russell King1f0090a2011-03-16 23:35:25 +00001191config PL310_ERRATA_727915
1192 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1193 depends on CACHE_L2X0
1194 help
1195 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1196 operation (offset 0x7FC). This operation runs in background so that
1197 PL310 can handle normal accesses while it is in progress. Under very
1198 rare circumstances, due to this erratum, write data can be lost when
1199 PL310 treats a cacheable write transaction during a Clean &
1200 Invalidate by Way operation.
1201
Will Deacon475d92f2010-09-28 14:02:02 +01001202config ARM_ERRATA_743622
1203 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1204 depends on CPU_V7
1205 help
1206 This option enables the workaround for the 743622 Cortex-A9
1207 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1208 optimisation in the Cortex-A9 Store Buffer may lead to data
1209 corruption. This workaround sets a specific bit in the diagnostic
1210 register of the Cortex-A9 which disables the Store Buffer
1211 optimisation, preventing the defect from occurring. This has no
1212 visible impact on the overall performance or power consumption of the
1213 processor.
1214
Will Deacon9a27c272011-02-18 16:36:35 +01001215config ARM_ERRATA_751472
1216 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1217 depends on CPU_V7 && SMP
1218 help
1219 This option enables the workaround for the 751472 Cortex-A9 (prior
1220 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1221 completion of a following broadcasted operation if the second
1222 operation is received by a CPU before the ICIALLUIS has completed,
1223 potentially leading to corrupted entries in the cache or TLB.
1224
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001225config ARM_ERRATA_753970
1226 bool "ARM errata: cache sync operation may be faulty"
1227 depends on CACHE_PL310
1228 help
1229 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1230
1231 Under some condition the effect of cache sync operation on
1232 the store buffer still remains when the operation completes.
1233 This means that the store buffer is always asked to drain and
1234 this prevents it from merging any further writes. The workaround
1235 is to replace the normal offset of cache sync operation (0x730)
1236 by another offset targeting an unmapped PL310 register 0x740.
1237 This has the same effect as the cache sync operation: store buffer
1238 drain and waiting for all buffers empty.
1239
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001240config ARM_ERRATA_754322
1241 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1242 depends on CPU_V7
1243 help
1244 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1245 r3p*) erratum. A speculative memory access may cause a page table walk
1246 which starts prior to an ASID switch but completes afterwards. This
1247 can populate the micro-TLB with a stale entry which may be hit with
1248 the new ASID. This workaround places two dsb instructions in the mm
1249 switching code so that no page table walks can cross the ASID switch.
1250
Will Deacon5dab26a2011-03-04 12:38:54 +01001251config ARM_ERRATA_754327
1252 bool "ARM errata: no automatic Store Buffer drain"
1253 depends on CPU_V7 && SMP
1254 help
1255 This option enables the workaround for the 754327 Cortex-A9 (prior to
1256 r2p0) erratum. The Store Buffer does not have any automatic draining
1257 mechanism and therefore a livelock may occur if an external agent
1258 continuously polls a memory location waiting to observe an update.
1259 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1260 written polling loops from denying visibility of updates to memory.
1261
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262endmenu
1263
1264source "arch/arm/common/Kconfig"
1265
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266menu "Bus support"
1267
1268config ARM_AMBA
1269 bool
1270
1271config ISA
1272 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273 help
1274 Find out whether you have ISA slots on your motherboard. ISA is the
1275 name of a bus system, i.e. the way the CPU talks to the other stuff
1276 inside your box. Other bus systems are PCI, EISA, MicroChannel
1277 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1278 newer boards don't support it. If you have ISA, say Y, otherwise N.
1279
Russell King065909b2006-01-04 15:44:16 +00001280# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281config ISA_DMA
1282 bool
Russell King065909b2006-01-04 15:44:16 +00001283 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284
Russell King065909b2006-01-04 15:44:16 +00001285# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001286config ISA_DMA_API
1287 bool
Al Viro5cae8412005-05-04 05:39:22 +01001288
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001290 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291 help
1292 Find out whether you have a PCI motherboard. PCI is the name of a
1293 bus system, i.e. the way the CPU talks to the other stuff inside
1294 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1295 VESA. If you have PCI, say Y, otherwise N.
1296
Anton Vorontsov52882172010-04-19 13:20:49 +01001297config PCI_DOMAINS
1298 bool
1299 depends on PCI
1300
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001301config PCI_NANOENGINE
1302 bool "BSE nanoEngine PCI support"
1303 depends on SA1100_NANOENGINE
1304 help
1305 Enable PCI on the BSE nanoEngine board.
1306
Matthew Wilcox36e23592007-07-10 10:54:40 -06001307config PCI_SYSCALL
1308 def_bool PCI
1309
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310# Select the host bridge type
1311config PCI_HOST_VIA82C505
1312 bool
1313 depends on PCI && ARCH_SHARK
1314 default y
1315
Mike Rapoporta0113a92007-11-25 08:55:34 +01001316config PCI_HOST_ITE8152
1317 bool
1318 depends on PCI && MACH_ARMCORE
1319 default y
1320 select DMABOUNCE
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322source "drivers/pci/Kconfig"
1323
1324source "drivers/pcmcia/Kconfig"
1325
1326endmenu
1327
1328menu "Kernel Features"
1329
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001330source "kernel/time/Kconfig"
1331
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332config SMP
1333 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001334 depends on EXPERIMENTAL
Russell Kingfbb4dda2011-01-17 18:01:58 +00001335 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001336 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001337 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001338 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001339 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001340 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001341 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001342 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343 help
1344 This enables support for systems with more than one CPU. If you have
1345 a system with only one CPU, like most personal computers, say N. If
1346 you have a system with more than one CPU, say Y.
1347
1348 If you say N here, the kernel will run on single and multiprocessor
1349 machines, but will use only one CPU of a multiprocessor machine. If
1350 you say Y here, the kernel will run on many, but not all, single
1351 processor machines. On a single processor machine, the kernel will
1352 run faster if you say N here.
1353
Adrian Bunk03502fa2008-02-03 15:50:21 +02001354 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001356 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357
1358 If you don't know what to do here, say N.
1359
Russell Kingf00ec482010-09-04 10:47:48 +01001360config SMP_ON_UP
1361 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1362 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001363 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001364 default y
1365 help
1366 SMP kernels contain instructions which fail on non-SMP processors.
1367 Enabling this option allows the kernel to modify itself to make
1368 these instructions safe. Disabling it allows about 1K of space
1369 savings.
1370
1371 If you don't know what to do here, say Y.
1372
Russell Kinga8cbcd92009-05-16 11:51:14 +01001373config HAVE_ARM_SCU
1374 bool
1375 depends on SMP
1376 help
1377 This option enables support for the ARM system coherency unit
1378
Russell Kingf32f4ce2009-05-16 12:14:21 +01001379config HAVE_ARM_TWD
1380 bool
1381 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001382 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001383 help
1384 This options enables support for the ARM timer and watchdog unit
1385
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001386choice
1387 prompt "Memory split"
1388 default VMSPLIT_3G
1389 help
1390 Select the desired split between kernel and user memory.
1391
1392 If you are not absolutely sure what you are doing, leave this
1393 option alone!
1394
1395 config VMSPLIT_3G
1396 bool "3G/1G user/kernel split"
1397 config VMSPLIT_2G
1398 bool "2G/2G user/kernel split"
1399 config VMSPLIT_1G
1400 bool "1G/3G user/kernel split"
1401endchoice
1402
1403config PAGE_OFFSET
1404 hex
1405 default 0x40000000 if VMSPLIT_1G
1406 default 0x80000000 if VMSPLIT_2G
1407 default 0xC0000000
1408
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409config NR_CPUS
1410 int "Maximum number of CPUs (2-32)"
1411 range 2 32
1412 depends on SMP
1413 default "4"
1414
Russell Kinga054a812005-11-02 22:24:33 +00001415config HOTPLUG_CPU
1416 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1417 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001418 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001419 help
1420 Say Y here to experiment with turning CPUs off and on. CPUs
1421 can be controlled through /sys/devices/system/cpu.
1422
Russell King37ee16a2005-11-08 19:08:05 +00001423config LOCAL_TIMERS
1424 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001425 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001426 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001427 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001428 help
1429 Enable support for local timers on SMP platforms, rather then the
1430 legacy IPI broadcast method. Local timers allows the system
1431 accounting to be spread across the timer interval, preventing a
1432 "thundering herd" at every timer tick.
1433
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001434source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435
Russell Kingf8065812006-03-02 22:41:59 +00001436config HZ
1437 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001438 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001439 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001440 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001441 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001442 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001443 default 100
1444
Catalin Marinas16c79652009-07-24 12:33:02 +01001445config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001446 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001447 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001448 select AEABI
1449 select ARM_ASM_UNIFIED
1450 help
1451 By enabling this option, the kernel will be compiled in
1452 Thumb-2 mode. A compiler/assembler that understand the unified
1453 ARM-Thumb syntax is needed.
1454
1455 If unsure, say N.
1456
Dave Martin6f685c52011-03-03 11:41:12 +01001457config THUMB2_AVOID_R_ARM_THM_JUMP11
1458 bool "Work around buggy Thumb-2 short branch relocations in gas"
1459 depends on THUMB2_KERNEL && MODULES
1460 default y
1461 help
1462 Various binutils versions can resolve Thumb-2 branches to
1463 locally-defined, preemptible global symbols as short-range "b.n"
1464 branch instructions.
1465
1466 This is a problem, because there's no guarantee the final
1467 destination of the symbol, or any candidate locations for a
1468 trampoline, are within range of the branch. For this reason, the
1469 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1470 relocation in modules at all, and it makes little sense to add
1471 support.
1472
1473 The symptom is that the kernel fails with an "unsupported
1474 relocation" error when loading some modules.
1475
1476 Until fixed tools are available, passing
1477 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1478 code which hits this problem, at the cost of a bit of extra runtime
1479 stack usage in some cases.
1480
1481 The problem is described in more detail at:
1482 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1483
1484 Only Thumb-2 kernels are affected.
1485
1486 Unless you are sure your tools don't have this problem, say Y.
1487
Catalin Marinas0becb082009-07-24 12:32:53 +01001488config ARM_ASM_UNIFIED
1489 bool
1490
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001491config AEABI
1492 bool "Use the ARM EABI to compile the kernel"
1493 help
1494 This option allows for the kernel to be compiled using the latest
1495 ARM ABI (aka EABI). This is only useful if you are using a user
1496 space environment that is also compiled with EABI.
1497
1498 Since there are major incompatibilities between the legacy ABI and
1499 EABI, especially with regard to structure member alignment, this
1500 option also changes the kernel syscall calling convention to
1501 disambiguate both ABIs and allow for backward compatibility support
1502 (selected with CONFIG_OABI_COMPAT).
1503
1504 To use this you need GCC version 4.0.0 or later.
1505
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001506config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001507 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001508 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001509 default y
1510 help
1511 This option preserves the old syscall interface along with the
1512 new (ARM EABI) one. It also provides a compatibility layer to
1513 intercept syscalls that have structure arguments which layout
1514 in memory differs between the legacy ABI and the new ARM EABI
1515 (only for non "thumb" binaries). This option adds a tiny
1516 overhead to all syscalls and produces a slightly larger kernel.
1517 If you know you'll be using only pure EABI user space then you
1518 can say N here. If this option is not selected and you attempt
1519 to execute a legacy ABI binary then the result will be
1520 UNPREDICTABLE (in fact it can be predicted that it won't work
1521 at all). If in doubt say Y.
1522
Mel Gormaneb335752009-05-13 17:34:48 +01001523config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001524 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001525
Russell King05944d72006-11-30 20:43:51 +00001526config ARCH_SPARSEMEM_ENABLE
1527 bool
1528
Russell King07a2f732008-10-01 21:39:58 +01001529config ARCH_SPARSEMEM_DEFAULT
1530 def_bool ARCH_SPARSEMEM_ENABLE
1531
Russell King05944d72006-11-30 20:43:51 +00001532config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001533 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001534
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001535config HIGHMEM
1536 bool "High Memory Support (EXPERIMENTAL)"
1537 depends on MMU && EXPERIMENTAL
1538 help
1539 The address space of ARM processors is only 4 Gigabytes large
1540 and it has to accommodate user address space, kernel address
1541 space as well as some memory mapped IO. That means that, if you
1542 have a large amount of physical memory and/or IO, not all of the
1543 memory can be "permanently mapped" by the kernel. The physical
1544 memory that is not permanently mapped is called "high memory".
1545
1546 Depending on the selected kernel/user memory split, minimum
1547 vmalloc space and actual amount of RAM, you may not need this
1548 option which should result in a slightly faster kernel.
1549
1550 If unsure, say n.
1551
Russell King65cec8e2009-08-17 20:02:06 +01001552config HIGHPTE
1553 bool "Allocate 2nd-level pagetables from highmem"
1554 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001555
Jamie Iles1b8873a2010-02-02 20:25:44 +01001556config HW_PERF_EVENTS
1557 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001558 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001559 default y
1560 help
1561 Enable hardware performance counter support for perf events. If
1562 disabled, perf events will use software events only.
1563
Dave Hansen3f22ab22005-06-23 00:07:43 -07001564source "mm/Kconfig"
1565
Magnus Dammc1b2d972010-07-05 10:00:11 +01001566config FORCE_MAX_ZONEORDER
1567 int "Maximum zone order" if ARCH_SHMOBILE
1568 range 11 64 if ARCH_SHMOBILE
1569 default "9" if SA1111
1570 default "11"
1571 help
1572 The kernel memory allocator divides physically contiguous memory
1573 blocks into "zones", where each zone is a power of two number of
1574 pages. This option selects the largest power of two that the kernel
1575 keeps in the memory allocator. If you need to allocate very large
1576 blocks of physically contiguous memory, then you may need to
1577 increase this value.
1578
1579 This config option is actually maximum order plus one. For example,
1580 a value of 11 means that the largest free memory block is 2^10 pages.
1581
Linus Torvalds1da177e2005-04-16 15:20:36 -07001582config LEDS
1583 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001584 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001585 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001586 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1587 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001588 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001589 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001590 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001591 help
1592 If you say Y here, the LEDs on your machine will be used
1593 to provide useful information about your current system status.
1594
1595 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1596 be able to select which LEDs are active using the options below. If
1597 you are compiling a kernel for the EBSA-110 or the LART however, the
1598 red LED will simply flash regularly to indicate that the system is
1599 still functional. It is safe to say Y here if you have a CATS
1600 system, but the driver will do nothing.
1601
1602config LEDS_TIMER
1603 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001604 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1605 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001607 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608 default y if ARCH_EBSA110
1609 help
1610 If you say Y here, one of the system LEDs (the green one on the
1611 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1612 will flash regularly to indicate that the system is still
1613 operational. This is mainly useful to kernel hackers who are
1614 debugging unstable kernels.
1615
1616 The LART uses the same LED for both Timer LED and CPU usage LED
1617 functions. You may choose to use both, but the Timer LED function
1618 will overrule the CPU usage LED.
1619
1620config LEDS_CPU
1621 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001622 !ARCH_OMAP) \
1623 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1624 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625 depends on LEDS
1626 help
1627 If you say Y here, the red LED will be used to give a good real
1628 time indication of CPU usage, by lighting whenever the idle task
1629 is not currently executing.
1630
1631 The LART uses the same LED for both Timer LED and CPU usage LED
1632 functions. You may choose to use both, but the Timer LED function
1633 will overrule the CPU usage LED.
1634
1635config ALIGNMENT_TRAP
1636 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001637 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001638 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001639 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001640 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001641 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1643 address divisible by 4. On 32-bit ARM processors, these non-aligned
1644 fetch/store instructions will be emulated in software if you say
1645 here, which has a severe performance impact. This is necessary for
1646 correct operation of some network protocols. With an IP-only
1647 configuration it is safe to say N, otherwise say Y.
1648
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001649config UACCESS_WITH_MEMCPY
1650 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1651 depends on MMU && EXPERIMENTAL
1652 default y if CPU_FEROCEON
1653 help
1654 Implement faster copy_to_user and clear_user methods for CPU
1655 cores where a 8-word STM instruction give significantly higher
1656 memory write throughput than a sequence of individual 32bit stores.
1657
1658 A possible side effect is a slight increase in scheduling latency
1659 between threads sharing the same address space if they invoke
1660 such copy operations with large buffers.
1661
1662 However, if the CPU data cache is using a write-allocate mode,
1663 this option is unlikely to provide any performance gain.
1664
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001665config SECCOMP
1666 bool
1667 prompt "Enable seccomp to safely compute untrusted bytecode"
1668 ---help---
1669 This kernel feature is useful for number crunching applications
1670 that may need to compute untrusted bytecode during their
1671 execution. By using pipes or other transports made available to
1672 the process as file descriptors supporting the read/write
1673 syscalls, it's possible to isolate those applications in
1674 their own address space using seccomp. Once seccomp is
1675 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1676 and the task is only allowed to execute a few safe syscalls
1677 defined by each seccomp mode.
1678
Nicolas Pitrec743f382010-05-24 23:55:42 -04001679config CC_STACKPROTECTOR
1680 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001681 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001682 help
1683 This option turns on the -fstack-protector GCC feature. This
1684 feature puts, at the beginning of functions, a canary value on
1685 the stack just before the return address, and validates
1686 the value just before actually returning. Stack based buffer
1687 overflows (that need to overwrite this return address) now also
1688 overwrite the canary, which gets detected and the attack is then
1689 neutralized via a kernel panic.
1690 This feature requires gcc version 4.2 or above.
1691
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001692config DEPRECATED_PARAM_STRUCT
1693 bool "Provide old way to pass kernel parameters"
1694 help
1695 This was deprecated in 2001 and announced to live on for 5 years.
1696 Some old boot loaders still use this way.
1697
Linus Torvalds1da177e2005-04-16 15:20:36 -07001698endmenu
1699
1700menu "Boot options"
1701
1702# Compressed boot loader in ROM. Yes, we really want to ask about
1703# TEXT and BSS so we preserve their values in the config files.
1704config ZBOOT_ROM_TEXT
1705 hex "Compressed ROM boot loader base address"
1706 default "0"
1707 help
1708 The physical address at which the ROM-able zImage is to be
1709 placed in the target. Platforms which normally make use of
1710 ROM-able zImage formats normally set this to a suitable
1711 value in their defconfig file.
1712
1713 If ZBOOT_ROM is not enabled, this has no effect.
1714
1715config ZBOOT_ROM_BSS
1716 hex "Compressed ROM boot loader BSS address"
1717 default "0"
1718 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001719 The base address of an area of read/write memory in the target
1720 for the ROM-able zImage which must be available while the
1721 decompressor is running. It must be large enough to hold the
1722 entire decompressed kernel plus an additional 128 KiB.
1723 Platforms which normally make use of ROM-able zImage formats
1724 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725
1726 If ZBOOT_ROM is not enabled, this has no effect.
1727
1728config ZBOOT_ROM
1729 bool "Compressed boot loader in ROM/flash"
1730 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1731 help
1732 Say Y here if you intend to execute your compressed kernel image
1733 (zImage) directly from ROM or flash. If unsure, say N.
1734
Simon Hormanf45b1142011-01-11 04:01:08 +01001735config ZBOOT_ROM_MMCIF
1736 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1737 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1738 help
1739 Say Y here to include experimental MMCIF loading code in the
1740 ROM-able zImage. With this enabled it is possible to write the
1741 the ROM-able zImage kernel image to an MMC card and boot the
1742 kernel straight from the reset vector. At reset the processor
1743 Mask ROM will load the first part of the the ROM-able zImage
1744 which in turn loads the rest the kernel image to RAM using the
1745 MMCIF hardware block.
1746
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747config CMDLINE
1748 string "Default kernel command string"
1749 default ""
1750 help
1751 On some architectures (EBSA110 and CATS), there is currently no way
1752 for the boot loader to pass arguments to the kernel. For these
1753 architectures, you should supply some command-line options at build
1754 time by entering them here. As a minimum, you should specify the
1755 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1756
Alexander Holler92d20402010-02-16 19:04:53 +01001757config CMDLINE_FORCE
1758 bool "Always use the default kernel command string"
1759 depends on CMDLINE != ""
1760 help
1761 Always use the default kernel command string, even if the boot
1762 loader passes other arguments to the kernel.
1763 This is useful if you cannot or don't want to change the
1764 command-line options your boot loader passes to the kernel.
1765
1766 If unsure, say N.
1767
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768config XIP_KERNEL
1769 bool "Kernel Execute-In-Place from ROM"
1770 depends on !ZBOOT_ROM
1771 help
1772 Execute-In-Place allows the kernel to run from non-volatile storage
1773 directly addressable by the CPU, such as NOR flash. This saves RAM
1774 space since the text section of the kernel is not loaded from flash
1775 to RAM. Read-write sections, such as the data section and stack,
1776 are still copied to RAM. The XIP kernel is not compressed since
1777 it has to run directly from flash, so it will take more space to
1778 store it. The flash address used to link the kernel object files,
1779 and for storing it, is configuration dependent. Therefore, if you
1780 say Y here, you must know the proper physical address where to
1781 store the kernel image depending on your own flash memory usage.
1782
1783 Also note that the make target becomes "make xipImage" rather than
1784 "make zImage" or "make Image". The final kernel binary to put in
1785 ROM memory will be arch/arm/boot/xipImage.
1786
1787 If unsure, say N.
1788
1789config XIP_PHYS_ADDR
1790 hex "XIP Kernel Physical Location"
1791 depends on XIP_KERNEL
1792 default "0x00080000"
1793 help
1794 This is the physical address in your flash memory the kernel will
1795 be linked for and stored to. This address is dependent on your
1796 own flash usage.
1797
Richard Purdiec587e4a2007-02-06 21:29:00 +01001798config KEXEC
1799 bool "Kexec system call (EXPERIMENTAL)"
1800 depends on EXPERIMENTAL
1801 help
1802 kexec is a system call that implements the ability to shutdown your
1803 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001804 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001805 you can start any kernel with it, not just Linux.
1806
1807 It is an ongoing process to be certain the hardware in a machine
1808 is properly shutdown, so do not be surprised if this code does not
1809 initially work for you. It may help to enable device hotplugging
1810 support.
1811
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001812config ATAGS_PROC
1813 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001814 depends on KEXEC
1815 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001816 help
1817 Should the atags used to boot the kernel be exported in an "atags"
1818 file in procfs. Useful with kexec.
1819
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001820config CRASH_DUMP
1821 bool "Build kdump crash kernel (EXPERIMENTAL)"
1822 depends on EXPERIMENTAL
1823 help
1824 Generate crash dump after being started by kexec. This should
1825 be normally only set in special crash dump kernels which are
1826 loaded in the main kernel with kexec-tools into a specially
1827 reserved region and then later executed after a crash by
1828 kdump/kexec. The crash dump kernel must be compiled to a
1829 memory address not used by the main kernel
1830
1831 For more details see Documentation/kdump/kdump.txt
1832
Eric Miaoe69edc792010-07-05 15:56:50 +02001833config AUTO_ZRELADDR
1834 bool "Auto calculation of the decompressed kernel image address"
1835 depends on !ZBOOT_ROM && !ARCH_U300
1836 help
1837 ZRELADDR is the physical address where the decompressed kernel
1838 image will be placed. If AUTO_ZRELADDR is selected, the address
1839 will be determined at run-time by masking the current IP with
1840 0xf8000000. This assumes the zImage being placed in the first 128MB
1841 from start of memory.
1842
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843endmenu
1844
Russell Kingac9d7ef2008-08-18 17:26:00 +01001845menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001846
Ben Dooks89c52ed2009-07-30 23:23:24 +01001847if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001848
1849source "drivers/cpufreq/Kconfig"
1850
Yong Shen64f102b2010-10-21 21:18:59 +08001851config CPU_FREQ_IMX
1852 tristate "CPUfreq driver for i.MX CPUs"
1853 depends on ARCH_MXC && CPU_FREQ
1854 help
1855 This enables the CPUfreq driver for i.MX CPUs.
1856
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857config CPU_FREQ_SA1100
1858 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859
1860config CPU_FREQ_SA1110
1861 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862
1863config CPU_FREQ_INTEGRATOR
1864 tristate "CPUfreq driver for ARM Integrator CPUs"
1865 depends on ARCH_INTEGRATOR && CPU_FREQ
1866 default y
1867 help
1868 This enables the CPUfreq driver for ARM Integrator CPUs.
1869
1870 For details, take a look at <file:Documentation/cpu-freq>.
1871
1872 If in doubt, say Y.
1873
Russell King9e2697f2007-12-14 13:30:14 +00001874config CPU_FREQ_PXA
1875 bool
1876 depends on CPU_FREQ && ARCH_PXA && PXA25x
1877 default y
1878 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1879
Mark Brownb3748dd2009-06-15 11:23:20 +01001880config CPU_FREQ_S3C64XX
1881 bool "CPUfreq support for Samsung S3C64XX CPUs"
1882 depends on CPU_FREQ && CPU_S3C6410
1883
Ben Dooks9d56c022009-07-30 23:23:25 +01001884config CPU_FREQ_S3C
1885 bool
1886 help
1887 Internal configuration node for common cpufreq on Samsung SoC
1888
1889config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001890 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001891 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1892 select CPU_FREQ_S3C
1893 help
1894 This enables the CPUfreq driver for the Samsung S3C24XX family
1895 of CPUs.
1896
1897 For details, take a look at <file:Documentation/cpu-freq>.
1898
1899 If in doubt, say N.
1900
1901config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001902 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001903 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1904 help
1905 Compile in support for changing the PLL frequency from the
1906 S3C24XX series CPUfreq driver. The PLL takes time to settle
1907 after a frequency change, so by default it is not enabled.
1908
1909 This also means that the PLL tables for the selected CPU(s) will
1910 be built which may increase the size of the kernel image.
1911
1912config CPU_FREQ_S3C24XX_DEBUG
1913 bool "Debug CPUfreq Samsung driver core"
1914 depends on CPU_FREQ_S3C24XX
1915 help
1916 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1917
1918config CPU_FREQ_S3C24XX_IODEBUG
1919 bool "Debug CPUfreq Samsung driver IO timing"
1920 depends on CPU_FREQ_S3C24XX
1921 help
1922 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1923
Ben Dookse6d197a2009-07-30 23:23:42 +01001924config CPU_FREQ_S3C24XX_DEBUGFS
1925 bool "Export debugfs for CPUFreq"
1926 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1927 help
1928 Export status information via debugfs.
1929
Linus Torvalds1da177e2005-04-16 15:20:36 -07001930endif
1931
Russell Kingac9d7ef2008-08-18 17:26:00 +01001932source "drivers/cpuidle/Kconfig"
1933
1934endmenu
1935
Linus Torvalds1da177e2005-04-16 15:20:36 -07001936menu "Floating point emulation"
1937
1938comment "At least one emulation must be selected"
1939
1940config FPE_NWFPE
1941 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001942 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943 ---help---
1944 Say Y to include the NWFPE floating point emulator in the kernel.
1945 This is necessary to run most binaries. Linux does not currently
1946 support floating point hardware so you need to say Y here even if
1947 your machine has an FPA or floating point co-processor podule.
1948
1949 You may say N here if you are going to load the Acorn FPEmulator
1950 early in the bootup.
1951
1952config FPE_NWFPE_XP
1953 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001954 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955 help
1956 Say Y to include 80-bit support in the kernel floating-point
1957 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1958 Note that gcc does not generate 80-bit operations by default,
1959 so in most cases this option only enlarges the size of the
1960 floating point emulator without any good reason.
1961
1962 You almost surely want to say N here.
1963
1964config FPE_FASTFPE
1965 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001966 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967 ---help---
1968 Say Y here to include the FAST floating point emulator in the kernel.
1969 This is an experimental much faster emulator which now also has full
1970 precision for the mantissa. It does not support any exceptions.
1971 It is very simple, and approximately 3-6 times faster than NWFPE.
1972
1973 It should be sufficient for most programs. It may be not suitable
1974 for scientific calculations, but you have to check this for yourself.
1975 If you do not feel you need a faster FP emulation you should better
1976 choose NWFPE.
1977
1978config VFP
1979 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001980 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001981 help
1982 Say Y to include VFP support code in the kernel. This is needed
1983 if your hardware includes a VFP unit.
1984
1985 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1986 release notes and additional status information.
1987
1988 Say N if your target does not have VFP hardware.
1989
Catalin Marinas25ebee02007-09-25 15:22:24 +01001990config VFPv3
1991 bool
1992 depends on VFP
1993 default y if CPU_V7
1994
Catalin Marinasb5872db2008-01-10 19:16:17 +01001995config NEON
1996 bool "Advanced SIMD (NEON) Extension support"
1997 depends on VFPv3 && CPU_V7
1998 help
1999 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2000 Extension.
2001
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002endmenu
2003
2004menu "Userspace binary formats"
2005
2006source "fs/Kconfig.binfmt"
2007
2008config ARTHUR
2009 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002010 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002011 help
2012 Say Y here to include the kernel code necessary if you want to run
2013 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2014 experimental; if this sounds frightening, say N and sleep in peace.
2015 You can also say M here to compile this support as a module (which
2016 will be called arthur).
2017
2018endmenu
2019
2020menu "Power management options"
2021
Russell Kingeceab4a2005-11-15 11:31:41 +00002022source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023
Johannes Bergf4cb5702007-12-08 02:14:00 +01002024config ARCH_SUSPEND_POSSIBLE
Kukjin Kim3e1d9872011-03-25 20:09:26 +09002025 depends on !ARCH_S5P64X0 && !ARCH_S5P6442
Russell King6a786182011-04-02 10:15:28 +01002026 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2027 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002028 def_bool y
2029
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030endmenu
2031
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002032source "net/Kconfig"
2033
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002034source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035
2036source "fs/Kconfig"
2037
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038source "arch/arm/Kconfig.debug"
2039
2040source "security/Kconfig"
2041
2042source "crypto/Kconfig"
2043
2044source "lib/Kconfig"