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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 help
33 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000034 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000036 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 Europe. There is an ARM Linux project with a web page at
38 <http://www.arm.linux.org.uk/>.
39
Russell King1a189b92008-04-13 21:41:55 +010040config HAVE_PWM
41 bool
42
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010043config MIGHT_HAVE_PCI
44 bool
45
Ralf Baechle75e71532007-02-09 17:08:58 +000046config SYS_SUPPORTS_APM_EMULATION
47 bool
48
Russell King112f38a42010-12-15 19:23:07 +000049config HAVE_SCHED_CLOCK
50 bool
51
David Brownell0a938b92007-03-05 00:30:18 -080052config GENERIC_GPIO
53 bool
David Brownell0a938b92007-03-05 00:30:18 -080054
John Stultz5cfc8ee2010-03-24 00:22:36 +000055config ARCH_USES_GETTIMEOFFSET
56 bool
57 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010058
Kevin Hilman0567a0c2007-03-13 20:29:24 +010059config GENERIC_CLOCKEVENTS
60 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010061
Catalin Marinasa8655e82008-02-04 17:30:57 +010062config GENERIC_CLOCKEVENTS_BROADCAST
63 bool
64 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010065 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config GENERIC_ISA_DMA
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config FIQ
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
200 Patch phys-to-virt translation functions at runtime according to
201 the position of the kernel in system memory.
202
Nicolas Pitreb511d752011-02-21 06:53:35 +0100203 This can only be used with non-XIP with MMU kernels where
Russell Kingdc21af92011-01-04 19:09:43 +0000204 the base of physical memory is at a 16MB boundary.
205
Russell Kingcada3c02011-01-04 19:39:29 +0000206config ARM_PATCH_PHYS_VIRT_16BIT
207 def_bool y
208 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
209
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210source "init/Kconfig"
211
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700212source "kernel/Kconfig.freezer"
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214menu "System Type"
215
Hyok S. Choi3c427972009-07-24 12:35:00 +0100216config MMU
217 bool "MMU-based Paged Memory Management Support"
218 default y
219 help
220 Select if you want MMU-based virtualised addressing space
221 support by paged memory management. If unsure, say 'Y'.
222
Russell Kingccf50e22010-03-15 19:03:06 +0000223#
224# The "ARM system type" choice list is ordered alphabetically by option
225# text. Please add new entries in the option alphabetic order.
226#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227choice
228 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000229 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100231config ARCH_INTEGRATOR
232 bool "ARM Ltd. Integrator family"
233 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100234 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100235 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000236 select ICST
Russell King13edd862010-01-15 21:49:23 +0000237 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000238 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000239 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100240 help
241 Support for ARM's Integrator platform.
242
243config ARCH_REALVIEW
244 bool "ARM Ltd. RealView family"
245 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100246 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000247 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100248 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100249 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000250 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000251 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000252 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100253 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254 help
255 This enables support for ARM Ltd RealView boards.
256
257config ARCH_VERSATILE
258 bool "ARM Ltd. Versatile family"
259 select ARM_AMBA
260 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100261 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000262 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100263 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100264 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000265 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000266 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000267 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000268 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 help
270 This enables support for ARM Ltd Versatile board.
271
Russell Kingceade892010-02-11 21:44:53 +0000272config ARCH_VEXPRESS
273 bool "ARM Ltd. Versatile Express family"
274 select ARCH_WANT_OPTIONAL_GPIOLIB
275 select ARM_AMBA
276 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100277 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000278 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000279 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100280 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000281 select ICST
282 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000283 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000284 help
285 This enables support for the ARM Ltd Versatile Express boards.
286
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100287config ARCH_AT91
288 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100289 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700290 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100291 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100292 This enables support for systems based on the Atmel AT91RM9200,
293 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100294
Russell Kingccf50e22010-03-15 19:03:06 +0000295config ARCH_BCMRING
296 bool "Broadcom BCMRING"
297 depends on MMU
298 select CPU_V6
299 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100300 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000301 select GENERIC_CLOCKEVENTS
302 select ARCH_WANT_OPTIONAL_GPIOLIB
303 help
304 Support for Broadcom's BCMRing platform.
305
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100307 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000308 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000309 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000310 help
311 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300313config ARCH_CNS3XXX
314 bool "Cavium Networks CNS3XXX family"
315 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300316 select GENERIC_CLOCKEVENTS
317 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100318 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400319 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300320 help
321 Support for Cavium Networks CNS3XXX platform.
322
Russell King788c9702009-04-26 14:21:59 +0100323config ARCH_GEMINI
324 bool "Cortina Systems Gemini"
325 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100326 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000327 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100328 help
329 Support for the Cortina Systems Gemini family SoCs
330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331config ARCH_EBSA110
332 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000333 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100334 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000335 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337 help
338 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000339 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 Ethernet interface, two PCMCIA sockets, two serial ports and a
341 parallel port.
342
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000343config ARCH_EP93XX
344 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000345 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000346 select ARM_AMBA
347 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100348 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700349 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100350 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000351 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000352 help
353 This enables support for the Cirrus EP93xx series of CPUs.
354
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355config ARCH_FOOTBRIDGE
356 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000357 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000359 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000360 help
361 Support for systems based on the DC21285 companion chip
362 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
Russell King788c9702009-04-26 14:21:59 +0100364config ARCH_MXC
365 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100366 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100367 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100368 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100369 select CLKSRC_MMIO
Jan Weitzelc124bef2011-03-17 13:44:30 +0100370 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100371 help
372 Support for Freescale MXC/iMX-based family of processors
373
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800374config ARCH_MXS
375 bool "Freescale MXS-based"
376 select GENERIC_CLOCKEVENTS
377 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100378 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100379 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800380 help
381 Support for Freescale MXS-based family of processors
382
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100383config ARCH_STMP3XXX
384 bool "Freescale STMP3xxx"
385 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100386 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100387 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100388 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100389 select USB_ARCH_HAS_EHCI
390 help
391 Support for systems based on the Freescale 3xxx CPUs.
392
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100393config ARCH_NETX
394 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100395 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000396 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100397 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100398 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000399 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100400 This enables support for systems based on the Hilscher NetX Soc
401
402config ARCH_H720X
403 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100405 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000406 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100407 help
408 This enables support for systems based on the Hynix HMS720x
409
Russell King3b938be2007-05-12 11:25:44 +0100410config ARCH_IOP13XX
411 bool "IOP13xx-based"
412 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000413 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100414 select PLAT_IOP
415 select PCI
416 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100417 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100418 help
419 Support for Intel's IOP13XX (XScale) family of processors.
420
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100421config ARCH_IOP32X
422 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100423 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000424 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100425 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100426 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100427 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000428 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100429 Support for Intel's 80219 and IOP32X (XScale) family of
430 processors.
431
432config ARCH_IOP33X
433 bool "IOP33x-based"
434 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000435 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100436 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100437 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100438 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100439 help
440 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
Russell King3b938be2007-05-12 11:25:44 +0100442config ARCH_IXP23XX
443 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100444 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000445 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100446 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000447 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100448 help
Russell King3b938be2007-05-12 11:25:44 +0100449 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450
451config ARCH_IXP2000
452 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100453 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000454 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100455 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000456 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000457 help
458 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459
Russell King3b938be2007-05-12 11:25:44 +0100460config ARCH_IXP4XX
461 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100462 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100463 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000464 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100465 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100466 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000467 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100468 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100469 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100470 help
Russell King3b938be2007-05-12 11:25:44 +0100471 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100472
Saeed Bisharaedabd382009-08-06 15:12:43 +0300473config ARCH_DOVE
474 bool "Marvell Dove"
Russell Kingc7862822011-01-17 18:20:05 +0000475 select CPU_V6K
Saeed Bisharaedabd382009-08-06 15:12:43 +0300476 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300477 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300478 select GENERIC_CLOCKEVENTS
479 select PLAT_ORION
480 help
481 Support for the Marvell Dove SoC 88AP510
482
Saeed Bishara651c74c2008-06-22 22:45:06 +0200483config ARCH_KIRKWOOD
484 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200486 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700487 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200488 select GENERIC_CLOCKEVENTS
489 select PLAT_ORION
490 help
491 Support for the following Marvell Kirkwood series SoCs:
492 88F6180, 88F6192 and 88F6281.
493
Russell King788c9702009-04-26 14:21:59 +0100494config ARCH_LOKI
495 bool "Marvell Loki (88RC8480)"
496 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100497 select GENERIC_CLOCKEVENTS
498 select PLAT_ORION
499 help
500 Support for the Marvell Loki (88RC8480) SoC.
501
Kevin Wells40805942010-07-27 08:49:04 -0700502config ARCH_LPC32XX
503 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100504 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700505 select CPU_ARM926T
506 select ARCH_REQUIRE_GPIOLIB
507 select HAVE_IDE
508 select ARM_AMBA
509 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100510 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700511 select GENERIC_TIME
512 select GENERIC_CLOCKEVENTS
513 help
514 Support for the NXP LPC32XX family of processors
515
Russell King788c9702009-04-26 14:21:59 +0100516config ARCH_MV78XX0
517 bool "Marvell MV78xx0"
518 select CPU_FEROCEON
519 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700520 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100521 select GENERIC_CLOCKEVENTS
522 select PLAT_ORION
523 help
524 Support for the following Marvell MV78xx0 series SoCs:
525 MV781x0, MV782x0.
526
527config ARCH_ORION5X
528 bool "Marvell Orion"
529 depends on MMU
530 select CPU_FEROCEON
531 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700532 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100533 select GENERIC_CLOCKEVENTS
534 select PLAT_ORION
535 help
536 Support for the following Marvell Orion 5x series SoCs:
537 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
538 Orion-2 (5281), Orion-1-90 (6183).
539
540config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500541 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100542 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100543 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100544 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100545 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000546 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100547 select TICK_ONESHOT
548 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400549 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100550 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500551 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100552
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100553config ARCH_KS8695
554 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000555 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100556 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000557 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100558 help
559 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
560 System-on-Chip devices.
561
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100562config ARCH_NS9XXX
563 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000564 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100565 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100566 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700567 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100568 help
569 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
570 System.
571
572 <http://www.digi.com/products/microprocessors/index.jsp>
573
Russell King788c9702009-04-26 14:21:59 +0100574config ARCH_W90X900
575 bool "Nuvoton W90X900 CPU"
576 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100577 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100578 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100579 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100580 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200581 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100582 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
583 At present, the w90x900 has been renamed nuc900, regarding
584 the ARM series product line, you can login the following
585 link address to know more.
586
587 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
588 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400589
wanzongshuna62e9032009-12-31 15:06:05 +0100590config ARCH_NUC93X
591 bool "Nuvoton NUC93X CPU"
592 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100593 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100594 help
595 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
596 low-power and high performance MPEG-4/JPEG multimedia controller chip.
597
Erik Gillingc5f80062010-01-21 16:53:02 -0800598config ARCH_TEGRA
599 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000600 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100601 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800602 select GENERIC_TIME
603 select GENERIC_CLOCKEVENTS
604 select GENERIC_GPIO
605 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000606 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800607 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700608 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800609 help
610 This enables support for NVIDIA Tegra based systems (Tegra APX,
611 Tegra 6xx and Tegra 2 series).
612
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100613config ARCH_PNX4008
614 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000615 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100616 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000617 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100618 help
619 This enables support for Philips PNX4008 mobile platform.
620
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700622 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100623 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500624 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100625 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100627 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700628 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100629 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000630 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000631 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800632 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800633 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000634 help
eric miao2c8086a2007-09-11 19:13:17 -0700635 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636
Russell King788c9702009-04-26 14:21:59 +0100637config ARCH_MSM
638 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500639 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800640 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700641 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800642 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800643 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800644 Support for Qualcomm MSM/QSD based systems. This runs on the
645 apps processor of the MSM/QSD and depends on a shared memory
646 interface to the modem processor which runs the baseband
647 stack and controls some vital subsystems
648 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800649
Magnus Dammc793c1b2010-02-05 11:14:49 +0000650config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900651 bool "Renesas SH-Mobile / R-Mobile"
652 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900653 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900654 select GENERIC_CLOCKEVENTS
655 select NO_IOPORT
656 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000657 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000658 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900659 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661config ARCH_RPC
662 bool "RiscPC"
663 select ARCH_ACORN
664 select FIQ
665 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100666 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100667 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000668 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000669 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100670 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000671 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672 help
673 On the Acorn Risc-PC, Linux can support the internal IDE disk and
674 CD-ROM interface, serial and parallel port, and the floppy drive.
675
676config ARCH_SA1100
677 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100678 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000679 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100680 select ISA
Russell King05944d72006-11-30 20:43:51 +0000681 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500682 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100683 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000684 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100685 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700686 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000687 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100688 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700689 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000690 help
691 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692
693config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900694 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800695 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100696 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700697 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000698 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900699 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700 help
701 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
702 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000703 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704
Ben Dooks63b1f512010-04-30 16:32:26 +0900705 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300706 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900707 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
708
Ben Dooksa08ab632008-10-21 14:06:39 +0100709config ARCH_S3C64XX
710 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000711 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900712 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900713 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100714 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900715 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000716 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100717 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900718 select ARCH_REQUIRE_GPIOLIB
719 select SAMSUNG_CLKSRC
720 select SAMSUNG_IRQ_VIC_TIMER
721 select SAMSUNG_IRQ_UART
722 select S3C_GPIO_TRACK
723 select S3C_GPIO_PULL_UPDOWN
724 select S3C_GPIO_CFG_S3C24XX
725 select S3C_GPIO_CFG_S3C64XX
726 select S3C_DEV_NAND
727 select USB_ARCH_HAS_OHCI
728 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900729 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100731 help
732 Samsung S3C64XX series based systems
733
Kukjin Kim49b7a492010-09-07 15:47:18 +0900734config ARCH_S5P64X0
735 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900736 select CPU_V6
737 select GENERIC_GPIO
738 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900739 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900740 select GENERIC_CLOCKEVENTS
741 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900742 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900743 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900744 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900745 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
746 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900747
Kukjin Kim550db7f2010-01-29 10:19:26 +0900748config ARCH_S5P6442
749 bool "Samsung S5P6442"
750 select CPU_V6
751 select GENERIC_GPIO
752 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900753 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900754 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900755 help
756 Samsung S5P6442 CPU based systems
757
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200758config ARCH_S5PC100
759 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900760 select GENERIC_GPIO
761 select HAVE_CLK
762 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100763 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900764 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900765 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900766 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900767 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900768 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200769 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900770
Kukjin Kim170f4e42010-02-24 16:40:44 +0900771config ARCH_S5PV210
772 bool "Samsung S5PV210/S5PC110"
773 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900774 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900775 select GENERIC_GPIO
776 select HAVE_CLK
777 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900778 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900779 select GENERIC_CLOCKEVENTS
780 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900781 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900782 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900783 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900784 help
785 Samsung S5PV210/S5PC110 series based systems
786
Kukjin Kim10606aa2011-02-14 15:05:27 +0900787config ARCH_EXYNOS4
788 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900789 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900790 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900791 select GENERIC_GPIO
792 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900793 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900794 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900795 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900796 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900797 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900798 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900799 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900800
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801config ARCH_SHARK
802 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000803 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100804 select ISA
805 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100806 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100807 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000808 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000809 help
810 Support for the StrongARM based Digital DNARD machine, also known
811 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812
Hans J. Koch83ef3332010-09-17 18:13:56 +0200813config ARCH_TCC_926
814 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100815 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200816 select CPU_ARM926T
817 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100818 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200819 select GENERIC_CLOCKEVENTS
820 help
821 Support for Telechips TCC ARM926-based systems.
822
Linus Walleijd98aac72009-04-27 10:21:46 +0100823config ARCH_U300
824 bool "ST-Ericsson U300 Series"
825 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100826 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100827 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000828 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100829 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100830 select ARM_AMBA
831 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100832 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100833 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100834 select GENERIC_GPIO
835 help
836 Support for ST-Ericsson U300 series mobile platforms.
837
Russell Kingccf50e22010-03-15 19:03:06 +0000838config ARCH_U8500
839 bool "ST-Ericsson U8500 Series"
840 select CPU_V7
841 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000842 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100843 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100844 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100845 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000846 help
847 Support for ST-Ericsson's Ux500 architecture
848
849config ARCH_NOMADIK
850 bool "STMicroelectronics Nomadik"
851 select ARM_AMBA
852 select ARM_VIC
853 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100854 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000855 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000856 select ARCH_REQUIRE_GPIOLIB
857 help
858 Support for the Nomadik platform by ST-Ericsson
859
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100860config ARCH_DAVINCI
861 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100862 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700863 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100864 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700865 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100866 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700867 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530868 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100869 help
870 Support for TI's DaVinci platform.
871
Russell King3b938be2007-05-12 11:25:44 +0100872config ARCH_OMAP
873 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700874 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700875 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100876 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700877 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000878 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800879 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100880 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200881 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100882
viresh kumarcee37e52010-04-01 12:31:05 +0100883config PLAT_SPEAR
884 bool "ST SPEAr"
885 select ARM_AMBA
886 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100887 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100888 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100889 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100890 select HAVE_CLK
891 help
892 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
893
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100894config ARCH_VT8500
895 bool "VIA/WonderMedia 85xx"
896 select CPU_ARM926T
897 select GENERIC_GPIO
898 select ARCH_HAS_CPUFREQ
899 select GENERIC_CLOCKEVENTS
900 select ARCH_REQUIRE_GPIOLIB
901 select HAVE_PWM
902 help
903 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904endchoice
905
Russell Kingccf50e22010-03-15 19:03:06 +0000906#
907# This is sorted alphabetically by mach-* pathname. However, plat-*
908# Kconfigs may be included either alphabetically (according to the
909# plat- suffix) or along side the corresponding mach-* source.
910#
Russell King95b8f202010-01-14 11:43:54 +0000911source "arch/arm/mach-at91/Kconfig"
912
913source "arch/arm/mach-bcmring/Kconfig"
914
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915source "arch/arm/mach-clps711x/Kconfig"
916
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300917source "arch/arm/mach-cns3xxx/Kconfig"
918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-davinci/Kconfig"
920
921source "arch/arm/mach-dove/Kconfig"
922
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000923source "arch/arm/mach-ep93xx/Kconfig"
924
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925source "arch/arm/mach-footbridge/Kconfig"
926
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200927source "arch/arm/mach-gemini/Kconfig"
928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-h720x/Kconfig"
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931source "arch/arm/mach-integrator/Kconfig"
932
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100933source "arch/arm/mach-iop32x/Kconfig"
934
935source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936
Dan Williams285f5fa2006-12-07 02:59:39 +0100937source "arch/arm/mach-iop13xx/Kconfig"
938
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939source "arch/arm/mach-ixp4xx/Kconfig"
940
941source "arch/arm/mach-ixp2000/Kconfig"
942
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100943source "arch/arm/mach-ixp23xx/Kconfig"
944
Russell King95b8f202010-01-14 11:43:54 +0000945source "arch/arm/mach-kirkwood/Kconfig"
946
947source "arch/arm/mach-ks8695/Kconfig"
948
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200949source "arch/arm/mach-loki/Kconfig"
950
Kevin Wells40805942010-07-27 08:49:04 -0700951source "arch/arm/mach-lpc32xx/Kconfig"
952
Russell King95b8f202010-01-14 11:43:54 +0000953source "arch/arm/mach-msm/Kconfig"
954
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200955source "arch/arm/mach-mv78xx0/Kconfig"
956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800959source "arch/arm/mach-mxs/Kconfig"
960
Russell King95b8f202010-01-14 11:43:54 +0000961source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800962
Russell King95b8f202010-01-14 11:43:54 +0000963source "arch/arm/mach-nomadik/Kconfig"
964source "arch/arm/plat-nomadik/Kconfig"
965
966source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967
Russell Kingd91a89102010-02-04 18:13:17 +0000968source "arch/arm/mach-nuc93x/Kconfig"
969
Tony Lindgrend48af152005-07-10 19:58:17 +0100970source "arch/arm/plat-omap/Kconfig"
971
972source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973
Tony Lindgren1dbae812005-11-10 14:26:51 +0000974source "arch/arm/mach-omap2/Kconfig"
975
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400976source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400977
Russell King95b8f202010-01-14 11:43:54 +0000978source "arch/arm/mach-pxa/Kconfig"
979source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Russell King95b8f202010-01-14 11:43:54 +0000981source "arch/arm/mach-mmp/Kconfig"
982
983source "arch/arm/mach-realview/Kconfig"
984
985source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300986
Ben Dookscf383672009-11-10 00:14:58 +0000987source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100988source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900989source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100990
viresh kumarcee37e52010-04-01 12:31:05 +0100991source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100992
Hans J. Koch83ef3332010-09-17 18:13:56 +0200993source "arch/arm/plat-tcc/Kconfig"
994
Ben Dooksa21765a2007-02-11 18:31:01 +0100995if ARCH_S3C2410
996source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100998source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900999source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001000source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001001source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001002endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003
Ben Dooksa08ab632008-10-21 14:06:39 +01001004if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001005source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001006endif
1007
Kukjin Kim49b7a492010-09-07 15:47:18 +09001008source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001009
Kukjin Kim550db7f2010-01-29 10:19:26 +09001010source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +01001011
Byungho Min5a7652f2009-06-23 21:39:42 +09001012source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001013
Kukjin Kim170f4e42010-02-24 16:40:44 +09001014source "arch/arm/mach-s5pv210/Kconfig"
1015
Kukjin Kim10606aa2011-02-14 15:05:27 +09001016source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001017
Russell King882d01f2010-03-02 23:40:15 +00001018source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019
Russell King882d01f2010-03-02 23:40:15 +00001020source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001021
Erik Gillingc5f80062010-01-21 16:53:02 -08001022source "arch/arm/mach-tegra/Kconfig"
1023
Russell King95b8f202010-01-14 11:43:54 +00001024source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027
1028source "arch/arm/mach-versatile/Kconfig"
1029
Russell Kingceade892010-02-11 21:44:53 +00001030source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001031source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001032
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001033source "arch/arm/mach-vt8500/Kconfig"
1034
wanzongshun7ec80dd2008-12-03 03:55:38 +01001035source "arch/arm/mach-w90x900/Kconfig"
1036
Linus Torvalds1da177e2005-04-16 15:20:36 -07001037# Definitions to make life easier
1038config ARCH_ACORN
1039 bool
1040
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001041config PLAT_IOP
1042 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001043 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001044 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001045
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001046config PLAT_ORION
1047 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001048 select CLKSRC_MMIO
Russell Kingf06a1622010-12-15 21:55:06 +00001049 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001050
Eric Miaobd5ce432009-01-20 12:06:01 +08001051config PLAT_PXA
1052 bool
1053
Russell Kingf4b8b312010-01-14 12:48:06 +00001054config PLAT_VERSATILE
1055 bool
1056
Russell Kinge3887712010-01-14 13:30:16 +00001057config ARM_TIMER_SP804
1058 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001059 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061source arch/arm/mm/Kconfig
1062
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001063config IWMMXT
1064 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001065 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1066 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001067 help
1068 Enable support for iWMMXt context switching at run time if
1069 running on a CPU that supports it.
1070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1072config XSCALE_PMU
1073 bool
1074 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1075 default y
1076
Jamie Iles0f4f0672010-02-02 20:23:15 +01001077config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001078 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001079 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001080 default y
1081 bool
1082
eric miao52108642010-12-13 09:42:34 +01001083config MULTI_IRQ_HANDLER
1084 bool
1085 help
1086 Allow each machine to specify it's own IRQ handler at run time.
1087
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001088if !MMU
1089source "arch/arm/Kconfig-nommu"
1090endif
1091
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001092config ARM_ERRATA_411920
1093 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001094 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001095 help
1096 Invalidation of the Instruction Cache operation can
1097 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1098 It does not affect the MPCore. This option enables the ARM Ltd.
1099 recommended workaround.
1100
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001101config ARM_ERRATA_430973
1102 bool "ARM errata: Stale prediction on replaced interworking branch"
1103 depends on CPU_V7
1104 help
1105 This option enables the workaround for the 430973 Cortex-A8
1106 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1107 interworking branch is replaced with another code sequence at the
1108 same virtual address, whether due to self-modifying code or virtual
1109 to physical address re-mapping, Cortex-A8 does not recover from the
1110 stale interworking branch prediction. This results in Cortex-A8
1111 executing the new code sequence in the incorrect ARM or Thumb state.
1112 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1113 and also flushes the branch target cache at every context switch.
1114 Note that setting specific bits in the ACTLR register may not be
1115 available in non-secure mode.
1116
Catalin Marinas855c5512009-04-30 17:06:15 +01001117config ARM_ERRATA_458693
1118 bool "ARM errata: Processor deadlock when a false hazard is created"
1119 depends on CPU_V7
1120 help
1121 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1122 erratum. For very specific sequences of memory operations, it is
1123 possible for a hazard condition intended for a cache line to instead
1124 be incorrectly associated with a different cache line. This false
1125 hazard might then cause a processor deadlock. The workaround enables
1126 the L1 caching of the NEON accesses and disables the PLD instruction
1127 in the ACTLR register. Note that setting specific bits in the ACTLR
1128 register may not be available in non-secure mode.
1129
Catalin Marinas0516e462009-04-30 17:06:20 +01001130config ARM_ERRATA_460075
1131 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1132 depends on CPU_V7
1133 help
1134 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1135 erratum. Any asynchronous access to the L2 cache may encounter a
1136 situation in which recent store transactions to the L2 cache are lost
1137 and overwritten with stale memory contents from external memory. The
1138 workaround disables the write-allocate mode for the L2 cache via the
1139 ACTLR register. Note that setting specific bits in the ACTLR register
1140 may not be available in non-secure mode.
1141
Will Deacon9f050272010-09-14 09:51:43 +01001142config ARM_ERRATA_742230
1143 bool "ARM errata: DMB operation may be faulty"
1144 depends on CPU_V7 && SMP
1145 help
1146 This option enables the workaround for the 742230 Cortex-A9
1147 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1148 between two write operations may not ensure the correct visibility
1149 ordering of the two writes. This workaround sets a specific bit in
1150 the diagnostic register of the Cortex-A9 which causes the DMB
1151 instruction to behave as a DSB, ensuring the correct behaviour of
1152 the two writes.
1153
Will Deacona672e992010-09-14 09:53:02 +01001154config ARM_ERRATA_742231
1155 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1156 depends on CPU_V7 && SMP
1157 help
1158 This option enables the workaround for the 742231 Cortex-A9
1159 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1160 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1161 accessing some data located in the same cache line, may get corrupted
1162 data due to bad handling of the address hazard when the line gets
1163 replaced from one of the CPUs at the same time as another CPU is
1164 accessing it. This workaround sets specific bits in the diagnostic
1165 register of the Cortex-A9 which reduces the linefill issuing
1166 capabilities of the processor.
1167
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001168config PL310_ERRATA_588369
1169 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001170 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001171 help
1172 The PL310 L2 cache controller implements three types of Clean &
1173 Invalidate maintenance operations: by Physical Address
1174 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1175 They are architecturally defined to behave as the execution of a
1176 clean operation followed immediately by an invalidate operation,
1177 both performing to the same memory location. This functionality
1178 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001179 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001180
1181config ARM_ERRATA_720789
1182 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1183 depends on CPU_V7 && SMP
1184 help
1185 This option enables the workaround for the 720789 Cortex-A9 (prior to
1186 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1187 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1188 As a consequence of this erratum, some TLB entries which should be
1189 invalidated are not, resulting in an incoherency in the system page
1190 tables. The workaround changes the TLB flushing routines to invalidate
1191 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001192
Russell King1f0090a2011-03-16 23:35:25 +00001193config PL310_ERRATA_727915
1194 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1195 depends on CACHE_L2X0
1196 help
1197 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1198 operation (offset 0x7FC). This operation runs in background so that
1199 PL310 can handle normal accesses while it is in progress. Under very
1200 rare circumstances, due to this erratum, write data can be lost when
1201 PL310 treats a cacheable write transaction during a Clean &
1202 Invalidate by Way operation.
1203
Will Deacon475d92f2010-09-28 14:02:02 +01001204config ARM_ERRATA_743622
1205 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1206 depends on CPU_V7
1207 help
1208 This option enables the workaround for the 743622 Cortex-A9
1209 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1210 optimisation in the Cortex-A9 Store Buffer may lead to data
1211 corruption. This workaround sets a specific bit in the diagnostic
1212 register of the Cortex-A9 which disables the Store Buffer
1213 optimisation, preventing the defect from occurring. This has no
1214 visible impact on the overall performance or power consumption of the
1215 processor.
1216
Will Deacon9a27c272011-02-18 16:36:35 +01001217config ARM_ERRATA_751472
1218 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1219 depends on CPU_V7 && SMP
1220 help
1221 This option enables the workaround for the 751472 Cortex-A9 (prior
1222 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1223 completion of a following broadcasted operation if the second
1224 operation is received by a CPU before the ICIALLUIS has completed,
1225 potentially leading to corrupted entries in the cache or TLB.
1226
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001227config ARM_ERRATA_753970
1228 bool "ARM errata: cache sync operation may be faulty"
1229 depends on CACHE_PL310
1230 help
1231 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1232
1233 Under some condition the effect of cache sync operation on
1234 the store buffer still remains when the operation completes.
1235 This means that the store buffer is always asked to drain and
1236 this prevents it from merging any further writes. The workaround
1237 is to replace the normal offset of cache sync operation (0x730)
1238 by another offset targeting an unmapped PL310 register 0x740.
1239 This has the same effect as the cache sync operation: store buffer
1240 drain and waiting for all buffers empty.
1241
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001242config ARM_ERRATA_754322
1243 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1244 depends on CPU_V7
1245 help
1246 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1247 r3p*) erratum. A speculative memory access may cause a page table walk
1248 which starts prior to an ASID switch but completes afterwards. This
1249 can populate the micro-TLB with a stale entry which may be hit with
1250 the new ASID. This workaround places two dsb instructions in the mm
1251 switching code so that no page table walks can cross the ASID switch.
1252
Will Deacon5dab26a2011-03-04 12:38:54 +01001253config ARM_ERRATA_754327
1254 bool "ARM errata: no automatic Store Buffer drain"
1255 depends on CPU_V7 && SMP
1256 help
1257 This option enables the workaround for the 754327 Cortex-A9 (prior to
1258 r2p0) erratum. The Store Buffer does not have any automatic draining
1259 mechanism and therefore a livelock may occur if an external agent
1260 continuously polls a memory location waiting to observe an update.
1261 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1262 written polling loops from denying visibility of updates to memory.
1263
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264endmenu
1265
1266source "arch/arm/common/Kconfig"
1267
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268menu "Bus support"
1269
1270config ARM_AMBA
1271 bool
1272
1273config ISA
1274 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 help
1276 Find out whether you have ISA slots on your motherboard. ISA is the
1277 name of a bus system, i.e. the way the CPU talks to the other stuff
1278 inside your box. Other bus systems are PCI, EISA, MicroChannel
1279 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1280 newer boards don't support it. If you have ISA, say Y, otherwise N.
1281
Russell King065909b2006-01-04 15:44:16 +00001282# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001283config ISA_DMA
1284 bool
Russell King065909b2006-01-04 15:44:16 +00001285 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286
Russell King065909b2006-01-04 15:44:16 +00001287# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001288config ISA_DMA_API
1289 bool
Al Viro5cae8412005-05-04 05:39:22 +01001290
Linus Torvalds1da177e2005-04-16 15:20:36 -07001291config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001292 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293 help
1294 Find out whether you have a PCI motherboard. PCI is the name of a
1295 bus system, i.e. the way the CPU talks to the other stuff inside
1296 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1297 VESA. If you have PCI, say Y, otherwise N.
1298
Anton Vorontsov52882172010-04-19 13:20:49 +01001299config PCI_DOMAINS
1300 bool
1301 depends on PCI
1302
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001303config PCI_NANOENGINE
1304 bool "BSE nanoEngine PCI support"
1305 depends on SA1100_NANOENGINE
1306 help
1307 Enable PCI on the BSE nanoEngine board.
1308
Matthew Wilcox36e23592007-07-10 10:54:40 -06001309config PCI_SYSCALL
1310 def_bool PCI
1311
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312# Select the host bridge type
1313config PCI_HOST_VIA82C505
1314 bool
1315 depends on PCI && ARCH_SHARK
1316 default y
1317
Mike Rapoporta0113a92007-11-25 08:55:34 +01001318config PCI_HOST_ITE8152
1319 bool
1320 depends on PCI && MACH_ARMCORE
1321 default y
1322 select DMABOUNCE
1323
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324source "drivers/pci/Kconfig"
1325
1326source "drivers/pcmcia/Kconfig"
1327
1328endmenu
1329
1330menu "Kernel Features"
1331
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001332source "kernel/time/Kconfig"
1333
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334config SMP
1335 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001336 depends on EXPERIMENTAL
Russell Kingfbb4dda2011-01-17 18:01:58 +00001337 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001338 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001339 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001340 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001341 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001342 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001343 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001344 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 help
1346 This enables support for systems with more than one CPU. If you have
1347 a system with only one CPU, like most personal computers, say N. If
1348 you have a system with more than one CPU, say Y.
1349
1350 If you say N here, the kernel will run on single and multiprocessor
1351 machines, but will use only one CPU of a multiprocessor machine. If
1352 you say Y here, the kernel will run on many, but not all, single
1353 processor machines. On a single processor machine, the kernel will
1354 run faster if you say N here.
1355
Adrian Bunk03502fa2008-02-03 15:50:21 +02001356 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001358 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001359
1360 If you don't know what to do here, say N.
1361
Russell Kingf00ec482010-09-04 10:47:48 +01001362config SMP_ON_UP
1363 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1364 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001365 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001366 default y
1367 help
1368 SMP kernels contain instructions which fail on non-SMP processors.
1369 Enabling this option allows the kernel to modify itself to make
1370 these instructions safe. Disabling it allows about 1K of space
1371 savings.
1372
1373 If you don't know what to do here, say Y.
1374
Russell Kinga8cbcd92009-05-16 11:51:14 +01001375config HAVE_ARM_SCU
1376 bool
1377 depends on SMP
1378 help
1379 This option enables support for the ARM system coherency unit
1380
Russell Kingf32f4ce2009-05-16 12:14:21 +01001381config HAVE_ARM_TWD
1382 bool
1383 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001384 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001385 help
1386 This options enables support for the ARM timer and watchdog unit
1387
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001388choice
1389 prompt "Memory split"
1390 default VMSPLIT_3G
1391 help
1392 Select the desired split between kernel and user memory.
1393
1394 If you are not absolutely sure what you are doing, leave this
1395 option alone!
1396
1397 config VMSPLIT_3G
1398 bool "3G/1G user/kernel split"
1399 config VMSPLIT_2G
1400 bool "2G/2G user/kernel split"
1401 config VMSPLIT_1G
1402 bool "1G/3G user/kernel split"
1403endchoice
1404
1405config PAGE_OFFSET
1406 hex
1407 default 0x40000000 if VMSPLIT_1G
1408 default 0x80000000 if VMSPLIT_2G
1409 default 0xC0000000
1410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411config NR_CPUS
1412 int "Maximum number of CPUs (2-32)"
1413 range 2 32
1414 depends on SMP
1415 default "4"
1416
Russell Kinga054a812005-11-02 22:24:33 +00001417config HOTPLUG_CPU
1418 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1419 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001420 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001421 help
1422 Say Y here to experiment with turning CPUs off and on. CPUs
1423 can be controlled through /sys/devices/system/cpu.
1424
Russell King37ee16a2005-11-08 19:08:05 +00001425config LOCAL_TIMERS
1426 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001427 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001428 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001429 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001430 help
1431 Enable support for local timers on SMP platforms, rather then the
1432 legacy IPI broadcast method. Local timers allows the system
1433 accounting to be spread across the timer interval, preventing a
1434 "thundering herd" at every timer tick.
1435
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001436source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437
Russell Kingf8065812006-03-02 22:41:59 +00001438config HZ
1439 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001440 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001441 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001442 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001443 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001444 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001445 default 100
1446
Catalin Marinas16c79652009-07-24 12:33:02 +01001447config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001448 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001449 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001450 select AEABI
1451 select ARM_ASM_UNIFIED
1452 help
1453 By enabling this option, the kernel will be compiled in
1454 Thumb-2 mode. A compiler/assembler that understand the unified
1455 ARM-Thumb syntax is needed.
1456
1457 If unsure, say N.
1458
Dave Martin6f685c52011-03-03 11:41:12 +01001459config THUMB2_AVOID_R_ARM_THM_JUMP11
1460 bool "Work around buggy Thumb-2 short branch relocations in gas"
1461 depends on THUMB2_KERNEL && MODULES
1462 default y
1463 help
1464 Various binutils versions can resolve Thumb-2 branches to
1465 locally-defined, preemptible global symbols as short-range "b.n"
1466 branch instructions.
1467
1468 This is a problem, because there's no guarantee the final
1469 destination of the symbol, or any candidate locations for a
1470 trampoline, are within range of the branch. For this reason, the
1471 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1472 relocation in modules at all, and it makes little sense to add
1473 support.
1474
1475 The symptom is that the kernel fails with an "unsupported
1476 relocation" error when loading some modules.
1477
1478 Until fixed tools are available, passing
1479 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1480 code which hits this problem, at the cost of a bit of extra runtime
1481 stack usage in some cases.
1482
1483 The problem is described in more detail at:
1484 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1485
1486 Only Thumb-2 kernels are affected.
1487
1488 Unless you are sure your tools don't have this problem, say Y.
1489
Catalin Marinas0becb082009-07-24 12:32:53 +01001490config ARM_ASM_UNIFIED
1491 bool
1492
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001493config AEABI
1494 bool "Use the ARM EABI to compile the kernel"
1495 help
1496 This option allows for the kernel to be compiled using the latest
1497 ARM ABI (aka EABI). This is only useful if you are using a user
1498 space environment that is also compiled with EABI.
1499
1500 Since there are major incompatibilities between the legacy ABI and
1501 EABI, especially with regard to structure member alignment, this
1502 option also changes the kernel syscall calling convention to
1503 disambiguate both ABIs and allow for backward compatibility support
1504 (selected with CONFIG_OABI_COMPAT).
1505
1506 To use this you need GCC version 4.0.0 or later.
1507
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001508config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001509 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001510 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001511 default y
1512 help
1513 This option preserves the old syscall interface along with the
1514 new (ARM EABI) one. It also provides a compatibility layer to
1515 intercept syscalls that have structure arguments which layout
1516 in memory differs between the legacy ABI and the new ARM EABI
1517 (only for non "thumb" binaries). This option adds a tiny
1518 overhead to all syscalls and produces a slightly larger kernel.
1519 If you know you'll be using only pure EABI user space then you
1520 can say N here. If this option is not selected and you attempt
1521 to execute a legacy ABI binary then the result will be
1522 UNPREDICTABLE (in fact it can be predicted that it won't work
1523 at all). If in doubt say Y.
1524
Mel Gormaneb335752009-05-13 17:34:48 +01001525config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001526 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001527
Russell King05944d72006-11-30 20:43:51 +00001528config ARCH_SPARSEMEM_ENABLE
1529 bool
1530
Russell King07a2f732008-10-01 21:39:58 +01001531config ARCH_SPARSEMEM_DEFAULT
1532 def_bool ARCH_SPARSEMEM_ENABLE
1533
Russell King05944d72006-11-30 20:43:51 +00001534config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001535 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001536
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001537config HIGHMEM
1538 bool "High Memory Support (EXPERIMENTAL)"
1539 depends on MMU && EXPERIMENTAL
1540 help
1541 The address space of ARM processors is only 4 Gigabytes large
1542 and it has to accommodate user address space, kernel address
1543 space as well as some memory mapped IO. That means that, if you
1544 have a large amount of physical memory and/or IO, not all of the
1545 memory can be "permanently mapped" by the kernel. The physical
1546 memory that is not permanently mapped is called "high memory".
1547
1548 Depending on the selected kernel/user memory split, minimum
1549 vmalloc space and actual amount of RAM, you may not need this
1550 option which should result in a slightly faster kernel.
1551
1552 If unsure, say n.
1553
Russell King65cec8e2009-08-17 20:02:06 +01001554config HIGHPTE
1555 bool "Allocate 2nd-level pagetables from highmem"
1556 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001557
Jamie Iles1b8873a2010-02-02 20:25:44 +01001558config HW_PERF_EVENTS
1559 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001560 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001561 default y
1562 help
1563 Enable hardware performance counter support for perf events. If
1564 disabled, perf events will use software events only.
1565
Dave Hansen3f22ab22005-06-23 00:07:43 -07001566source "mm/Kconfig"
1567
Magnus Dammc1b2d972010-07-05 10:00:11 +01001568config FORCE_MAX_ZONEORDER
1569 int "Maximum zone order" if ARCH_SHMOBILE
1570 range 11 64 if ARCH_SHMOBILE
1571 default "9" if SA1111
1572 default "11"
1573 help
1574 The kernel memory allocator divides physically contiguous memory
1575 blocks into "zones", where each zone is a power of two number of
1576 pages. This option selects the largest power of two that the kernel
1577 keeps in the memory allocator. If you need to allocate very large
1578 blocks of physically contiguous memory, then you may need to
1579 increase this value.
1580
1581 This config option is actually maximum order plus one. For example,
1582 a value of 11 means that the largest free memory block is 2^10 pages.
1583
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584config LEDS
1585 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001586 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001587 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1589 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001590 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001591 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001592 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593 help
1594 If you say Y here, the LEDs on your machine will be used
1595 to provide useful information about your current system status.
1596
1597 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1598 be able to select which LEDs are active using the options below. If
1599 you are compiling a kernel for the EBSA-110 or the LART however, the
1600 red LED will simply flash regularly to indicate that the system is
1601 still functional. It is safe to say Y here if you have a CATS
1602 system, but the driver will do nothing.
1603
1604config LEDS_TIMER
1605 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001606 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1607 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001609 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610 default y if ARCH_EBSA110
1611 help
1612 If you say Y here, one of the system LEDs (the green one on the
1613 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1614 will flash regularly to indicate that the system is still
1615 operational. This is mainly useful to kernel hackers who are
1616 debugging unstable kernels.
1617
1618 The LART uses the same LED for both Timer LED and CPU usage LED
1619 functions. You may choose to use both, but the Timer LED function
1620 will overrule the CPU usage LED.
1621
1622config LEDS_CPU
1623 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001624 !ARCH_OMAP) \
1625 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1626 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627 depends on LEDS
1628 help
1629 If you say Y here, the red LED will be used to give a good real
1630 time indication of CPU usage, by lighting whenever the idle task
1631 is not currently executing.
1632
1633 The LART uses the same LED for both Timer LED and CPU usage LED
1634 functions. You may choose to use both, but the Timer LED function
1635 will overrule the CPU usage LED.
1636
1637config ALIGNMENT_TRAP
1638 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001639 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001640 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001641 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001643 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1645 address divisible by 4. On 32-bit ARM processors, these non-aligned
1646 fetch/store instructions will be emulated in software if you say
1647 here, which has a severe performance impact. This is necessary for
1648 correct operation of some network protocols. With an IP-only
1649 configuration it is safe to say N, otherwise say Y.
1650
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001651config UACCESS_WITH_MEMCPY
1652 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1653 depends on MMU && EXPERIMENTAL
1654 default y if CPU_FEROCEON
1655 help
1656 Implement faster copy_to_user and clear_user methods for CPU
1657 cores where a 8-word STM instruction give significantly higher
1658 memory write throughput than a sequence of individual 32bit stores.
1659
1660 A possible side effect is a slight increase in scheduling latency
1661 between threads sharing the same address space if they invoke
1662 such copy operations with large buffers.
1663
1664 However, if the CPU data cache is using a write-allocate mode,
1665 this option is unlikely to provide any performance gain.
1666
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001667config SECCOMP
1668 bool
1669 prompt "Enable seccomp to safely compute untrusted bytecode"
1670 ---help---
1671 This kernel feature is useful for number crunching applications
1672 that may need to compute untrusted bytecode during their
1673 execution. By using pipes or other transports made available to
1674 the process as file descriptors supporting the read/write
1675 syscalls, it's possible to isolate those applications in
1676 their own address space using seccomp. Once seccomp is
1677 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1678 and the task is only allowed to execute a few safe syscalls
1679 defined by each seccomp mode.
1680
Nicolas Pitrec743f382010-05-24 23:55:42 -04001681config CC_STACKPROTECTOR
1682 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001683 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001684 help
1685 This option turns on the -fstack-protector GCC feature. This
1686 feature puts, at the beginning of functions, a canary value on
1687 the stack just before the return address, and validates
1688 the value just before actually returning. Stack based buffer
1689 overflows (that need to overwrite this return address) now also
1690 overwrite the canary, which gets detected and the attack is then
1691 neutralized via a kernel panic.
1692 This feature requires gcc version 4.2 or above.
1693
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001694config DEPRECATED_PARAM_STRUCT
1695 bool "Provide old way to pass kernel parameters"
1696 help
1697 This was deprecated in 2001 and announced to live on for 5 years.
1698 Some old boot loaders still use this way.
1699
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700endmenu
1701
1702menu "Boot options"
1703
1704# Compressed boot loader in ROM. Yes, we really want to ask about
1705# TEXT and BSS so we preserve their values in the config files.
1706config ZBOOT_ROM_TEXT
1707 hex "Compressed ROM boot loader base address"
1708 default "0"
1709 help
1710 The physical address at which the ROM-able zImage is to be
1711 placed in the target. Platforms which normally make use of
1712 ROM-able zImage formats normally set this to a suitable
1713 value in their defconfig file.
1714
1715 If ZBOOT_ROM is not enabled, this has no effect.
1716
1717config ZBOOT_ROM_BSS
1718 hex "Compressed ROM boot loader BSS address"
1719 default "0"
1720 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001721 The base address of an area of read/write memory in the target
1722 for the ROM-able zImage which must be available while the
1723 decompressor is running. It must be large enough to hold the
1724 entire decompressed kernel plus an additional 128 KiB.
1725 Platforms which normally make use of ROM-able zImage formats
1726 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727
1728 If ZBOOT_ROM is not enabled, this has no effect.
1729
1730config ZBOOT_ROM
1731 bool "Compressed boot loader in ROM/flash"
1732 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1733 help
1734 Say Y here if you intend to execute your compressed kernel image
1735 (zImage) directly from ROM or flash. If unsure, say N.
1736
Simon Hormanf45b1142011-01-11 04:01:08 +01001737config ZBOOT_ROM_MMCIF
1738 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1739 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1740 help
1741 Say Y here to include experimental MMCIF loading code in the
1742 ROM-able zImage. With this enabled it is possible to write the
1743 the ROM-able zImage kernel image to an MMC card and boot the
1744 kernel straight from the reset vector. At reset the processor
1745 Mask ROM will load the first part of the the ROM-able zImage
1746 which in turn loads the rest the kernel image to RAM using the
1747 MMCIF hardware block.
1748
Linus Torvalds1da177e2005-04-16 15:20:36 -07001749config CMDLINE
1750 string "Default kernel command string"
1751 default ""
1752 help
1753 On some architectures (EBSA110 and CATS), there is currently no way
1754 for the boot loader to pass arguments to the kernel. For these
1755 architectures, you should supply some command-line options at build
1756 time by entering them here. As a minimum, you should specify the
1757 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1758
Alexander Holler92d20402010-02-16 19:04:53 +01001759config CMDLINE_FORCE
1760 bool "Always use the default kernel command string"
1761 depends on CMDLINE != ""
1762 help
1763 Always use the default kernel command string, even if the boot
1764 loader passes other arguments to the kernel.
1765 This is useful if you cannot or don't want to change the
1766 command-line options your boot loader passes to the kernel.
1767
1768 If unsure, say N.
1769
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770config XIP_KERNEL
1771 bool "Kernel Execute-In-Place from ROM"
1772 depends on !ZBOOT_ROM
1773 help
1774 Execute-In-Place allows the kernel to run from non-volatile storage
1775 directly addressable by the CPU, such as NOR flash. This saves RAM
1776 space since the text section of the kernel is not loaded from flash
1777 to RAM. Read-write sections, such as the data section and stack,
1778 are still copied to RAM. The XIP kernel is not compressed since
1779 it has to run directly from flash, so it will take more space to
1780 store it. The flash address used to link the kernel object files,
1781 and for storing it, is configuration dependent. Therefore, if you
1782 say Y here, you must know the proper physical address where to
1783 store the kernel image depending on your own flash memory usage.
1784
1785 Also note that the make target becomes "make xipImage" rather than
1786 "make zImage" or "make Image". The final kernel binary to put in
1787 ROM memory will be arch/arm/boot/xipImage.
1788
1789 If unsure, say N.
1790
1791config XIP_PHYS_ADDR
1792 hex "XIP Kernel Physical Location"
1793 depends on XIP_KERNEL
1794 default "0x00080000"
1795 help
1796 This is the physical address in your flash memory the kernel will
1797 be linked for and stored to. This address is dependent on your
1798 own flash usage.
1799
Richard Purdiec587e4a2007-02-06 21:29:00 +01001800config KEXEC
1801 bool "Kexec system call (EXPERIMENTAL)"
1802 depends on EXPERIMENTAL
1803 help
1804 kexec is a system call that implements the ability to shutdown your
1805 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001806 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001807 you can start any kernel with it, not just Linux.
1808
1809 It is an ongoing process to be certain the hardware in a machine
1810 is properly shutdown, so do not be surprised if this code does not
1811 initially work for you. It may help to enable device hotplugging
1812 support.
1813
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001814config ATAGS_PROC
1815 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001816 depends on KEXEC
1817 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001818 help
1819 Should the atags used to boot the kernel be exported in an "atags"
1820 file in procfs. Useful with kexec.
1821
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001822config CRASH_DUMP
1823 bool "Build kdump crash kernel (EXPERIMENTAL)"
1824 depends on EXPERIMENTAL
1825 help
1826 Generate crash dump after being started by kexec. This should
1827 be normally only set in special crash dump kernels which are
1828 loaded in the main kernel with kexec-tools into a specially
1829 reserved region and then later executed after a crash by
1830 kdump/kexec. The crash dump kernel must be compiled to a
1831 memory address not used by the main kernel
1832
1833 For more details see Documentation/kdump/kdump.txt
1834
Eric Miaoe69edc792010-07-05 15:56:50 +02001835config AUTO_ZRELADDR
1836 bool "Auto calculation of the decompressed kernel image address"
1837 depends on !ZBOOT_ROM && !ARCH_U300
1838 help
1839 ZRELADDR is the physical address where the decompressed kernel
1840 image will be placed. If AUTO_ZRELADDR is selected, the address
1841 will be determined at run-time by masking the current IP with
1842 0xf8000000. This assumes the zImage being placed in the first 128MB
1843 from start of memory.
1844
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845endmenu
1846
Russell Kingac9d7ef2008-08-18 17:26:00 +01001847menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001848
Ben Dooks89c52ed2009-07-30 23:23:24 +01001849if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850
1851source "drivers/cpufreq/Kconfig"
1852
Yong Shen64f102b2010-10-21 21:18:59 +08001853config CPU_FREQ_IMX
1854 tristate "CPUfreq driver for i.MX CPUs"
1855 depends on ARCH_MXC && CPU_FREQ
1856 help
1857 This enables the CPUfreq driver for i.MX CPUs.
1858
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859config CPU_FREQ_SA1100
1860 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861
1862config CPU_FREQ_SA1110
1863 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001864
1865config CPU_FREQ_INTEGRATOR
1866 tristate "CPUfreq driver for ARM Integrator CPUs"
1867 depends on ARCH_INTEGRATOR && CPU_FREQ
1868 default y
1869 help
1870 This enables the CPUfreq driver for ARM Integrator CPUs.
1871
1872 For details, take a look at <file:Documentation/cpu-freq>.
1873
1874 If in doubt, say Y.
1875
Russell King9e2697f2007-12-14 13:30:14 +00001876config CPU_FREQ_PXA
1877 bool
1878 depends on CPU_FREQ && ARCH_PXA && PXA25x
1879 default y
1880 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1881
Mark Brownb3748dd2009-06-15 11:23:20 +01001882config CPU_FREQ_S3C64XX
1883 bool "CPUfreq support for Samsung S3C64XX CPUs"
1884 depends on CPU_FREQ && CPU_S3C6410
1885
Ben Dooks9d56c022009-07-30 23:23:25 +01001886config CPU_FREQ_S3C
1887 bool
1888 help
1889 Internal configuration node for common cpufreq on Samsung SoC
1890
1891config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001892 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001893 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1894 select CPU_FREQ_S3C
1895 help
1896 This enables the CPUfreq driver for the Samsung S3C24XX family
1897 of CPUs.
1898
1899 For details, take a look at <file:Documentation/cpu-freq>.
1900
1901 If in doubt, say N.
1902
1903config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001904 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001905 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1906 help
1907 Compile in support for changing the PLL frequency from the
1908 S3C24XX series CPUfreq driver. The PLL takes time to settle
1909 after a frequency change, so by default it is not enabled.
1910
1911 This also means that the PLL tables for the selected CPU(s) will
1912 be built which may increase the size of the kernel image.
1913
1914config CPU_FREQ_S3C24XX_DEBUG
1915 bool "Debug CPUfreq Samsung driver core"
1916 depends on CPU_FREQ_S3C24XX
1917 help
1918 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1919
1920config CPU_FREQ_S3C24XX_IODEBUG
1921 bool "Debug CPUfreq Samsung driver IO timing"
1922 depends on CPU_FREQ_S3C24XX
1923 help
1924 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1925
Ben Dookse6d197a2009-07-30 23:23:42 +01001926config CPU_FREQ_S3C24XX_DEBUGFS
1927 bool "Export debugfs for CPUFreq"
1928 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1929 help
1930 Export status information via debugfs.
1931
Linus Torvalds1da177e2005-04-16 15:20:36 -07001932endif
1933
Russell Kingac9d7ef2008-08-18 17:26:00 +01001934source "drivers/cpuidle/Kconfig"
1935
1936endmenu
1937
Linus Torvalds1da177e2005-04-16 15:20:36 -07001938menu "Floating point emulation"
1939
1940comment "At least one emulation must be selected"
1941
1942config FPE_NWFPE
1943 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001944 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001945 ---help---
1946 Say Y to include the NWFPE floating point emulator in the kernel.
1947 This is necessary to run most binaries. Linux does not currently
1948 support floating point hardware so you need to say Y here even if
1949 your machine has an FPA or floating point co-processor podule.
1950
1951 You may say N here if you are going to load the Acorn FPEmulator
1952 early in the bootup.
1953
1954config FPE_NWFPE_XP
1955 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001956 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957 help
1958 Say Y to include 80-bit support in the kernel floating-point
1959 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1960 Note that gcc does not generate 80-bit operations by default,
1961 so in most cases this option only enlarges the size of the
1962 floating point emulator without any good reason.
1963
1964 You almost surely want to say N here.
1965
1966config FPE_FASTFPE
1967 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001968 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969 ---help---
1970 Say Y here to include the FAST floating point emulator in the kernel.
1971 This is an experimental much faster emulator which now also has full
1972 precision for the mantissa. It does not support any exceptions.
1973 It is very simple, and approximately 3-6 times faster than NWFPE.
1974
1975 It should be sufficient for most programs. It may be not suitable
1976 for scientific calculations, but you have to check this for yourself.
1977 If you do not feel you need a faster FP emulation you should better
1978 choose NWFPE.
1979
1980config VFP
1981 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00001982 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001983 help
1984 Say Y to include VFP support code in the kernel. This is needed
1985 if your hardware includes a VFP unit.
1986
1987 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1988 release notes and additional status information.
1989
1990 Say N if your target does not have VFP hardware.
1991
Catalin Marinas25ebee02007-09-25 15:22:24 +01001992config VFPv3
1993 bool
1994 depends on VFP
1995 default y if CPU_V7
1996
Catalin Marinasb5872db2008-01-10 19:16:17 +01001997config NEON
1998 bool "Advanced SIMD (NEON) Extension support"
1999 depends on VFPv3 && CPU_V7
2000 help
2001 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2002 Extension.
2003
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004endmenu
2005
2006menu "Userspace binary formats"
2007
2008source "fs/Kconfig.binfmt"
2009
2010config ARTHUR
2011 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002012 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002013 help
2014 Say Y here to include the kernel code necessary if you want to run
2015 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2016 experimental; if this sounds frightening, say N and sleep in peace.
2017 You can also say M here to compile this support as a module (which
2018 will be called arthur).
2019
2020endmenu
2021
2022menu "Power management options"
2023
Russell Kingeceab4a2005-11-15 11:31:41 +00002024source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025
Johannes Bergf4cb5702007-12-08 02:14:00 +01002026config ARCH_SUSPEND_POSSIBLE
Kukjin Kim3e1d9872011-03-25 20:09:26 +09002027 depends on !ARCH_S5P64X0 && !ARCH_S5P6442
Russell King6a786182011-04-02 10:15:28 +01002028 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2029 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002030 def_bool y
2031
Linus Torvalds1da177e2005-04-16 15:20:36 -07002032endmenu
2033
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002034source "net/Kconfig"
2035
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002036source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037
2038source "fs/Kconfig"
2039
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040source "arch/arm/Kconfig.debug"
2041
2042source "security/Kconfig"
2043
2044source "crypto/Kconfig"
2045
2046source "lib/Kconfig"