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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
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -070065 default y if SMP && !LOCAL_TIMERS
Catalin Marinasa8655e82008-02-04 17:30:57 +010066
Rob Herringbf9dd362011-03-04 23:51:59 +010067config KTIME_SCALAR
68 bool
69 default y
70
Linus Walleijbc581772009-09-15 17:30:37 +010071config HAVE_TCM
72 bool
73 select GENERIC_ALLOCATOR
74
Russell Kinge119bff2010-01-10 17:23:29 +000075config HAVE_PROC_CPU
76 bool
77
Al Viro5ea81762007-02-11 15:41:31 +000078config NO_IOPORT
79 bool
Al Viro5ea81762007-02-11 15:41:31 +000080
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config EISA
82 bool
83 ---help---
84 The Extended Industry Standard Architecture (EISA) bus was
85 developed as an open alternative to the IBM MicroChannel bus.
86
87 The EISA bus provided some of the features of the IBM MicroChannel
88 bus while maintaining backward compatibility with cards made for
89 the older ISA bus. The EISA bus saw limited use between 1988 and
90 1995 when it was made obsolete by the PCI bus.
91
92 Say Y here if you are building a kernel for an EISA-based machine.
93
94 Otherwise, say N.
95
96config SBUS
97 bool
98
99config MCA
100 bool
101 help
102 MicroChannel Architecture is found in some IBM PS/2 machines and
103 laptops. It is a bus system similar to PCI or ISA. See
104 <file:Documentation/mca.txt> (and especially the web page given
105 there) before attempting to build an MCA bus kernel.
106
Russell Kingf16fb1e2007-04-28 09:59:37 +0100107config STACKTRACE_SUPPORT
108 bool
109 default y
110
Nicolas Pitref76e9152008-04-24 01:31:46 -0400111config HAVE_LATENCYTOP_SUPPORT
112 bool
113 depends on !SMP
114 default y
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config LOCKDEP_SUPPORT
117 bool
118 default y
119
Russell King7ad1bcb2006-08-27 12:07:02 +0100120config TRACE_IRQFLAGS_SUPPORT
121 bool
122 default y
123
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100124config HARDIRQS_SW_RESEND
125 bool
126 default y
127
128config GENERIC_IRQ_PROBE
129 bool
130 default y
131
Nick Piggin95c354f2008-01-30 13:31:20 +0100132config GENERIC_LOCKBREAK
133 bool
134 default y
135 depends on SMP && PREEMPT
136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137config RWSEM_GENERIC_SPINLOCK
138 bool
139 default y
140
141config RWSEM_XCHGADD_ALGORITHM
142 bool
143
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144config ARCH_HAS_ILOG2_U32
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
147config ARCH_HAS_ILOG2_U64
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
Ben Dooks89c52ed2009-07-30 23:23:24 +0100150config ARCH_HAS_CPUFREQ
151 bool
152 help
153 Internal node to signify that the ARCH has CPUFREQ support
154 and that the relevant menu configurations are displayed for
155 it.
156
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100157config ARCH_HAS_CPU_IDLE_WAIT
158 def_bool y
159
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800160config GENERIC_HWEIGHT
161 bool
162 default y
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164config GENERIC_CALIBRATE_DELAY
165 bool
166 default y
167
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100168config ARCH_MAY_HAVE_PC_FDC
169 bool
170
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800171config ZONE_DMA
172 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800173
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800174config NEED_DMA_MAP_STATE
175 def_bool y
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config GENERIC_ISA_DMA
178 bool
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config FIQ
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
195 bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
Russell King111e9a52011-05-12 10:02:42 +0100200 Patch phys-to-virt and virt-to-phys translation functions at
201 boot and module load time according to the position of the
202 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell King111e9a52011-05-12 10:02:42 +0100204 This can only be used with non-XIP MMU kernels where the base
205 of physical memory is at a 16MB boundary, or theoretically 64K
206 for the MSM machine class.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell Kingcada3c02011-01-04 19:39:29 +0000208config ARM_PATCH_PHYS_VIRT_16BIT
209 def_bool y
210 depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
Russell King111e9a52011-05-12 10:02:42 +0100211 help
212 This option extends the physical to virtual translation patching
213 to allow physical memory down to a theoretical minimum of 64K
214 boundaries.
Russell Kingcada3c02011-01-04 19:39:29 +0000215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216source "init/Kconfig"
217
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700218source "kernel/Kconfig.freezer"
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220menu "System Type"
221
Hyok S. Choi3c427972009-07-24 12:35:00 +0100222config MMU
223 bool "MMU-based Paged Memory Management Support"
224 default y
225 help
226 Select if you want MMU-based virtualised addressing space
227 support by paged memory management. If unsure, say 'Y'.
228
Russell Kingccf50e22010-03-15 19:03:06 +0000229#
230# The "ARM system type" choice list is ordered alphabetically by option
231# text. Please add new entries in the option alphabetic order.
232#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233choice
234 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000235 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237config ARCH_INTEGRATOR
238 bool "ARM Ltd. Integrator family"
239 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100240 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100241 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000242 select ICST
Russell King13edd862010-01-15 21:49:23 +0000243 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000244 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000245 select PLAT_VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 help
247 Support for ARM's Integrator platform.
248
249config ARCH_REALVIEW
250 bool "ARM Ltd. RealView family"
251 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100252 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000253 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100254 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100255 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000256 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000257 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000258 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100259 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260 help
261 This enables support for ARM Ltd RealView boards.
262
263config ARCH_VERSATILE
264 bool "ARM Ltd. Versatile family"
265 select ARM_AMBA
266 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000268 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100269 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100270 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000271 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000272 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000273 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000274 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100275 help
276 This enables support for ARM Ltd Versatile board.
277
Russell Kingceade892010-02-11 21:44:53 +0000278config ARCH_VEXPRESS
279 bool "ARM Ltd. Versatile Express family"
280 select ARCH_WANT_OPTIONAL_GPIOLIB
281 select ARM_AMBA
282 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100283 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000284 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000285 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100286 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000287 select ICST
288 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000289 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000290 help
291 This enables support for the ARM Ltd Versatile Express boards.
292
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100293config ARCH_AT91
294 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100295 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700296 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100297 select CLKDEV_LOOKUP
Jean-Christophe PLAGNIOL-VILLARD3d51f252011-05-03 00:44:58 +0800298 select ARM_PATCH_PHYS_VIRT if MMU
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100300 This enables support for systems based on the Atmel AT91RM9200,
301 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302
Russell Kingccf50e22010-03-15 19:03:06 +0000303config ARCH_BCMRING
304 bool "Broadcom BCMRING"
305 depends on MMU
306 select CPU_V6
307 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000310 select GENERIC_CLOCKEVENTS
311 select ARCH_WANT_OPTIONAL_GPIOLIB
312 help
313 Support for Broadcom's BCMRing platform.
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100316 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000317 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000318 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000319 help
320 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300322config ARCH_CNS3XXX
323 bool "Cavium Networks CNS3XXX family"
324 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300325 select GENERIC_CLOCKEVENTS
326 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100327 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400328 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300329 help
330 Support for Cavium Networks CNS3XXX platform.
331
Russell King788c9702009-04-26 14:21:59 +0100332config ARCH_GEMINI
333 bool "Cortina Systems Gemini"
334 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100335 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100337 help
338 Support for the Cortina Systems Gemini family SoCs
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340config ARCH_EBSA110
341 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000342 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100343 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000344 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000345 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 help
347 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000348 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 Ethernet interface, two PCMCIA sockets, two serial ports and a
350 parallel port.
351
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000352config ARCH_EP93XX
353 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000355 select ARM_AMBA
356 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100357 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700358 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100359 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000360 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000361 help
362 This enables support for the Cirrus EP93xx series of CPUs.
363
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364config ARCH_FOOTBRIDGE
365 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000366 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000368 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000369 help
370 Support for systems based on the DC21285 companion chip
371 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
Russell King788c9702009-04-26 14:21:59 +0100373config ARCH_MXC
374 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100375 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100376 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100377 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100378 select CLKSRC_MMIO
Jan Weitzelc124bef2011-03-17 13:44:30 +0100379 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100380 help
381 Support for Freescale MXC/iMX-based family of processors
382
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800383config ARCH_MXS
384 bool "Freescale MXS-based"
385 select GENERIC_CLOCKEVENTS
386 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100387 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100388 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800389 help
390 Support for Freescale MXS-based family of processors
391
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100392config ARCH_NETX
393 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100394 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100397 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000398 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100399 This enables support for systems based on the Hilscher NetX Soc
400
401config ARCH_H720X
402 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000403 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100404 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000405 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100406 help
407 This enables support for systems based on the Hynix HMS720x
408
Russell King3b938be2007-05-12 11:25:44 +0100409config ARCH_IOP13XX
410 bool "IOP13xx-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100413 select PLAT_IOP
414 select PCI
415 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100416 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100417 help
418 Support for Intel's IOP13XX (XScale) family of processors.
419
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420config ARCH_IOP32X
421 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100422 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100424 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100425 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100426 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000427 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 Support for Intel's 80219 and IOP32X (XScale) family of
429 processors.
430
431config ARCH_IOP33X
432 bool "IOP33x-based"
433 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100435 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100437 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100438 help
439 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IXP23XX
442 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100443 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100445 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000446 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100447 help
Russell King3b938be2007-05-12 11:25:44 +0100448 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450config ARCH_IXP2000
451 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100452 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100454 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000455 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
457 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IXP4XX
460 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100461 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100462 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100464 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100465 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000466 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100467 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100468 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100469 help
Russell King3b938be2007-05-12 11:25:44 +0100470 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100471
Saeed Bisharaedabd382009-08-06 15:12:43 +0300472config ARCH_DOVE
473 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300474 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300475 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300476 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the Marvell Dove SoC 88AP510
481
Saeed Bishara651c74c2008-06-22 22:45:06 +0200482config ARCH_KIRKWOOD
483 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000484 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200485 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700486 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200487 select GENERIC_CLOCKEVENTS
488 select PLAT_ORION
489 help
490 Support for the following Marvell Kirkwood series SoCs:
491 88F6180, 88F6192 and 88F6281.
492
Russell King788c9702009-04-26 14:21:59 +0100493config ARCH_LOKI
494 bool "Marvell Loki (88RC8480)"
495 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100496 select GENERIC_CLOCKEVENTS
497 select PLAT_ORION
498 help
499 Support for the Marvell Loki (88RC8480) SoC.
500
Kevin Wells40805942010-07-27 08:49:04 -0700501config ARCH_LPC32XX
502 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100503 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700504 select CPU_ARM926T
505 select ARCH_REQUIRE_GPIOLIB
506 select HAVE_IDE
507 select ARM_AMBA
508 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100509 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700510 select GENERIC_TIME
511 select GENERIC_CLOCKEVENTS
512 help
513 Support for the NXP LPC32XX family of processors
514
Russell King788c9702009-04-26 14:21:59 +0100515config ARCH_MV78XX0
516 bool "Marvell MV78xx0"
517 select CPU_FEROCEON
518 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700519 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100520 select GENERIC_CLOCKEVENTS
521 select PLAT_ORION
522 help
523 Support for the following Marvell MV78xx0 series SoCs:
524 MV781x0, MV782x0.
525
526config ARCH_ORION5X
527 bool "Marvell Orion"
528 depends on MMU
529 select CPU_FEROCEON
530 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700531 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100532 select GENERIC_CLOCKEVENTS
533 select PLAT_ORION
534 help
535 Support for the following Marvell Orion 5x series SoCs:
536 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
537 Orion-2 (5281), Orion-1-90 (6183).
538
539config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500540 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100541 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100542 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100543 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100544 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000545 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100546 select TICK_ONESHOT
547 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400548 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100549 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500550 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100551
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100552config ARCH_KS8695
553 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000554 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100555 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000556 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100557 help
558 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
559 System-on-Chip devices.
560
Russell King788c9702009-04-26 14:21:59 +0100561config ARCH_W90X900
562 bool "Nuvoton W90X900 CPU"
563 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100564 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100565 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100566 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200568 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100569 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570 At present, the w90x900 has been renamed nuc900, regarding
571 the ARM series product line, you can login the following
572 link address to know more.
573
574 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400576
wanzongshuna62e9032009-12-31 15:06:05 +0100577config ARCH_NUC93X
578 bool "Nuvoton NUC93X CPU"
579 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100580 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100581 help
582 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583 low-power and high performance MPEG-4/JPEG multimedia controller chip.
584
Erik Gillingc5f80062010-01-21 16:53:02 -0800585config ARCH_TEGRA
586 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000587 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100588 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800589 select GENERIC_TIME
590 select GENERIC_CLOCKEVENTS
591 select GENERIC_GPIO
592 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000593 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800594 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700595 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800596 help
597 This enables support for NVIDIA Tegra based systems (Tegra APX,
598 Tegra 6xx and Tegra 2 series).
599
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100600config ARCH_PNX4008
601 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000602 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100603 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000604 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100605 help
606 This enables support for Philips PNX4008 mobile platform.
607
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700609 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100610 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500611 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100612 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100613 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100614 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700615 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100616 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000617 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000618 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800619 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800620 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000621 help
eric miao2c8086a2007-09-11 19:13:17 -0700622 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Russell King788c9702009-04-26 14:21:59 +0100624config ARCH_MSM
625 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500626 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800627 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700628 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800629 select CLKDEV_LOOKUP
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700630 select ARCH_HAS_CPUFREQ
631 select GENERIC_GPIO
632 select GENERIC_TIME
633 select GENERIC_ALLOCATOR
Eric Miao49cbe782009-01-20 14:15:18 +0800634 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800635 Support for Qualcomm MSM/QSD based systems. This runs on the
636 apps processor of the MSM/QSD and depends on a shared memory
637 interface to the modem processor which runs the baseband
638 stack and controls some vital subsystems
639 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800640
Magnus Dammc793c1b2010-02-05 11:14:49 +0000641config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900642 bool "Renesas SH-Mobile / R-Mobile"
643 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900644 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900645 select GENERIC_CLOCKEVENTS
646 select NO_IOPORT
647 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000648 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000649 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900650 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000651
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652config ARCH_RPC
653 bool "RiscPC"
654 select ARCH_ACORN
655 select FIQ
656 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100657 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100658 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000659 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000660 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100661 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000662 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 help
664 On the Acorn Risc-PC, Linux can support the internal IDE disk and
665 CD-ROM interface, serial and parallel port, and the floppy drive.
666
667config ARCH_SA1100
668 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100669 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000670 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100671 select ISA
Russell King05944d72006-11-30 20:43:51 +0000672 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500673 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100674 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000675 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100676 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700677 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000678 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100679 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700680 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000681 help
682 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683
684config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900685 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800686 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100687 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700688 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000689 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900690 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 help
692 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
693 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000694 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695
Ben Dooks63b1f512010-04-30 16:32:26 +0900696 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300697 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900698 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
699
Ben Dooksa08ab632008-10-21 14:06:39 +0100700config ARCH_S3C64XX
701 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000702 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900703 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900704 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100705 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900706 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000707 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100708 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900709 select ARCH_REQUIRE_GPIOLIB
710 select SAMSUNG_CLKSRC
711 select SAMSUNG_IRQ_VIC_TIMER
712 select SAMSUNG_IRQ_UART
713 select S3C_GPIO_TRACK
714 select S3C_GPIO_PULL_UPDOWN
715 select S3C_GPIO_CFG_S3C24XX
716 select S3C_GPIO_CFG_S3C64XX
717 select S3C_DEV_NAND
718 select USB_ARCH_HAS_OHCI
719 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900720 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900721 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100722 help
723 Samsung S3C64XX series based systems
724
Kukjin Kim49b7a492010-09-07 15:47:18 +0900725config ARCH_S5P64X0
726 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900727 select CPU_V6
728 select GENERIC_GPIO
729 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900731 select GENERIC_CLOCKEVENTS
732 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900734 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900735 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900736 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
737 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900738
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200739config ARCH_S5PC100
740 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900741 select GENERIC_GPIO
742 select HAVE_CLK
743 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100744 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900745 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900746 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900747 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900748 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900749 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200750 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900751
Kukjin Kim170f4e42010-02-24 16:40:44 +0900752config ARCH_S5PV210
753 bool "Samsung S5PV210/S5PC110"
754 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900755 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900756 select GENERIC_GPIO
757 select HAVE_CLK
758 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900759 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900760 select GENERIC_CLOCKEVENTS
761 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900762 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900763 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900764 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900765 help
766 Samsung S5PV210/S5PC110 series based systems
767
Kukjin Kim10606aa2011-02-14 15:05:27 +0900768config ARCH_EXYNOS4
769 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900770 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900771 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900772 select GENERIC_GPIO
773 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900774 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900775 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900776 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900777 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900778 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900779 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900780 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900781
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782config ARCH_SHARK
783 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000784 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100785 select ISA
786 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100787 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100788 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000789 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000790 help
791 Support for the StrongARM based Digital DNARD machine, also known
792 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793
Hans J. Koch83ef3332010-09-17 18:13:56 +0200794config ARCH_TCC_926
795 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100796 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200797 select CPU_ARM926T
798 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100799 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200800 select GENERIC_CLOCKEVENTS
801 help
802 Support for Telechips TCC ARM926-based systems.
803
Linus Walleijd98aac72009-04-27 10:21:46 +0100804config ARCH_U300
805 bool "ST-Ericsson U300 Series"
806 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100807 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100808 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000809 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100810 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100811 select ARM_AMBA
812 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100813 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100814 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100815 select GENERIC_GPIO
816 help
817 Support for ST-Ericsson U300 series mobile platforms.
818
Russell Kingccf50e22010-03-15 19:03:06 +0000819config ARCH_U8500
820 bool "ST-Ericsson U8500 Series"
821 select CPU_V7
822 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000823 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100824 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100825 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100826 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000827 help
828 Support for ST-Ericsson's Ux500 architecture
829
830config ARCH_NOMADIK
831 bool "STMicroelectronics Nomadik"
832 select ARM_AMBA
833 select ARM_VIC
834 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100835 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000836 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000837 select ARCH_REQUIRE_GPIOLIB
838 help
839 Support for the Nomadik platform by ST-Ericsson
840
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100841config ARCH_DAVINCI
842 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100843 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700844 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100845 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700846 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100847 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700848 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100849 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530850 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100851 help
852 Support for TI's DaVinci platform.
853
Russell King3b938be2007-05-12 11:25:44 +0100854config ARCH_OMAP
855 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700856 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700857 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100858 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700859 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000860 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800861 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100862 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200863 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100864
viresh kumarcee37e52010-04-01 12:31:05 +0100865config PLAT_SPEAR
866 bool "ST SPEAr"
867 select ARM_AMBA
868 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100869 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100870 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100871 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100872 select HAVE_CLK
873 help
874 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
875
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100876config ARCH_VT8500
877 bool "VIA/WonderMedia 85xx"
878 select CPU_ARM926T
879 select GENERIC_GPIO
880 select ARCH_HAS_CPUFREQ
881 select GENERIC_CLOCKEVENTS
882 select ARCH_REQUIRE_GPIOLIB
883 select HAVE_PWM
884 help
885 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886endchoice
887
Russell Kingccf50e22010-03-15 19:03:06 +0000888#
889# This is sorted alphabetically by mach-* pathname. However, plat-*
890# Kconfigs may be included either alphabetically (according to the
891# plat- suffix) or along side the corresponding mach-* source.
892#
Russell King95b8f202010-01-14 11:43:54 +0000893source "arch/arm/mach-at91/Kconfig"
894
895source "arch/arm/mach-bcmring/Kconfig"
896
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897source "arch/arm/mach-clps711x/Kconfig"
898
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300899source "arch/arm/mach-cns3xxx/Kconfig"
900
Russell King95b8f202010-01-14 11:43:54 +0000901source "arch/arm/mach-davinci/Kconfig"
902
903source "arch/arm/mach-dove/Kconfig"
904
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000905source "arch/arm/mach-ep93xx/Kconfig"
906
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907source "arch/arm/mach-footbridge/Kconfig"
908
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200909source "arch/arm/mach-gemini/Kconfig"
910
Russell King95b8f202010-01-14 11:43:54 +0000911source "arch/arm/mach-h720x/Kconfig"
912
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913source "arch/arm/mach-integrator/Kconfig"
914
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100915source "arch/arm/mach-iop32x/Kconfig"
916
917source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Dan Williams285f5fa2006-12-07 02:59:39 +0100919source "arch/arm/mach-iop13xx/Kconfig"
920
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921source "arch/arm/mach-ixp4xx/Kconfig"
922
923source "arch/arm/mach-ixp2000/Kconfig"
924
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100925source "arch/arm/mach-ixp23xx/Kconfig"
926
Russell King95b8f202010-01-14 11:43:54 +0000927source "arch/arm/mach-kirkwood/Kconfig"
928
929source "arch/arm/mach-ks8695/Kconfig"
930
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200931source "arch/arm/mach-loki/Kconfig"
932
Kevin Wells40805942010-07-27 08:49:04 -0700933source "arch/arm/mach-lpc32xx/Kconfig"
934
Russell King95b8f202010-01-14 11:43:54 +0000935source "arch/arm/mach-msm/Kconfig"
936
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200937source "arch/arm/mach-mv78xx0/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800941source "arch/arm/mach-mxs/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800944
Russell King95b8f202010-01-14 11:43:54 +0000945source "arch/arm/mach-nomadik/Kconfig"
946source "arch/arm/plat-nomadik/Kconfig"
947
Russell Kingd91a8912010-02-04 18:13:17 +0000948source "arch/arm/mach-nuc93x/Kconfig"
949
Tony Lindgrend48af152005-07-10 19:58:17 +0100950source "arch/arm/plat-omap/Kconfig"
951
952source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953
Tony Lindgren1dbae812005-11-10 14:26:51 +0000954source "arch/arm/mach-omap2/Kconfig"
955
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400956source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-pxa/Kconfig"
959source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
Russell King95b8f202010-01-14 11:43:54 +0000961source "arch/arm/mach-mmp/Kconfig"
962
963source "arch/arm/mach-realview/Kconfig"
964
965source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300966
Ben Dookscf383672009-11-10 00:14:58 +0000967source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100968source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900969source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100970
viresh kumarcee37e52010-04-01 12:31:05 +0100971source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100972
Hans J. Koch83ef3332010-09-17 18:13:56 +0200973source "arch/arm/plat-tcc/Kconfig"
974
Ben Dooksa21765a2007-02-11 18:31:01 +0100975if ARCH_S3C2410
976source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100978source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900979source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100980source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100981source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
Ben Dooksa08ab632008-10-21 14:06:39 +0100984if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900985source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100986endif
987
Kukjin Kim49b7a492010-09-07 15:47:18 +0900988source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900989
Byungho Min5a7652f2009-06-23 21:39:42 +0900990source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900991
Kukjin Kim170f4e42010-02-24 16:40:44 +0900992source "arch/arm/mach-s5pv210/Kconfig"
993
Kukjin Kim10606aa2011-02-14 15:05:27 +0900994source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900995
Russell King882d01f2010-03-02 23:40:15 +0000996source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Erik Gillingc5f80062010-01-21 16:53:02 -0800998source "arch/arm/mach-tegra/Kconfig"
999
Russell King95b8f202010-01-14 11:43:54 +00001000source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Russell King95b8f202010-01-14 11:43:54 +00001002source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003
1004source "arch/arm/mach-versatile/Kconfig"
1005
Russell Kingceade892010-02-11 21:44:53 +00001006source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001007source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001008
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001009source "arch/arm/mach-vt8500/Kconfig"
1010
wanzongshun7ec80dd2008-12-03 03:55:38 +01001011source "arch/arm/mach-w90x900/Kconfig"
1012
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013# Definitions to make life easier
1014config ARCH_ACORN
1015 bool
1016
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001017config PLAT_IOP
1018 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001019 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001020 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001021
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001022config PLAT_ORION
1023 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001024 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001025 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001026 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001027
Eric Miaobd5ce432009-01-20 12:06:01 +08001028config PLAT_PXA
1029 bool
1030
Russell Kingf4b8b312010-01-14 12:48:06 +00001031config PLAT_VERSATILE
1032 bool
1033
Russell Kinge3887712010-01-14 13:30:16 +00001034config ARM_TIMER_SP804
1035 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001036 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038source arch/arm/mm/Kconfig
1039
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001040config RESERVE_FIRST_PAGE
1041 bool
1042 default n
1043 help
1044 Reserve the first page at PHYS_OFFSET. The first
1045 physical page is used by many platforms for warm
1046 boot operations. Reserve this page so that it is
1047 not allocated by the kernel.
1048
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001049config IWMMXT
1050 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001051 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1052 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001053 help
1054 Enable support for iWMMXt context switching at run time if
1055 running on a CPU that supports it.
1056
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1058config XSCALE_PMU
1059 bool
1060 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1061 default y
1062
Jamie Iles0f4f0672010-02-02 20:23:15 +01001063config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001064 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001065 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001066 default y
1067 bool
1068
eric miao52108642010-12-13 09:42:34 +01001069config MULTI_IRQ_HANDLER
1070 bool
1071 help
1072 Allow each machine to specify it's own IRQ handler at run time.
1073
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001074if !MMU
1075source "arch/arm/Kconfig-nommu"
1076endif
1077
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001078config ARM_ERRATA_411920
1079 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001080 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001081 help
1082 Invalidation of the Instruction Cache operation can
1083 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1084 It does not affect the MPCore. This option enables the ARM Ltd.
1085 recommended workaround.
1086
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001087config ARM_ERRATA_430973
1088 bool "ARM errata: Stale prediction on replaced interworking branch"
1089 depends on CPU_V7
1090 help
1091 This option enables the workaround for the 430973 Cortex-A8
1092 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1093 interworking branch is replaced with another code sequence at the
1094 same virtual address, whether due to self-modifying code or virtual
1095 to physical address re-mapping, Cortex-A8 does not recover from the
1096 stale interworking branch prediction. This results in Cortex-A8
1097 executing the new code sequence in the incorrect ARM or Thumb state.
1098 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1099 and also flushes the branch target cache at every context switch.
1100 Note that setting specific bits in the ACTLR register may not be
1101 available in non-secure mode.
1102
Catalin Marinas855c5512009-04-30 17:06:15 +01001103config ARM_ERRATA_458693
1104 bool "ARM errata: Processor deadlock when a false hazard is created"
1105 depends on CPU_V7
1106 help
1107 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1108 erratum. For very specific sequences of memory operations, it is
1109 possible for a hazard condition intended for a cache line to instead
1110 be incorrectly associated with a different cache line. This false
1111 hazard might then cause a processor deadlock. The workaround enables
1112 the L1 caching of the NEON accesses and disables the PLD instruction
1113 in the ACTLR register. Note that setting specific bits in the ACTLR
1114 register may not be available in non-secure mode.
1115
Catalin Marinas0516e462009-04-30 17:06:20 +01001116config ARM_ERRATA_460075
1117 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1118 depends on CPU_V7
1119 help
1120 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1121 erratum. Any asynchronous access to the L2 cache may encounter a
1122 situation in which recent store transactions to the L2 cache are lost
1123 and overwritten with stale memory contents from external memory. The
1124 workaround disables the write-allocate mode for the L2 cache via the
1125 ACTLR register. Note that setting specific bits in the ACTLR register
1126 may not be available in non-secure mode.
1127
Will Deacon9f050272010-09-14 09:51:43 +01001128config ARM_ERRATA_742230
1129 bool "ARM errata: DMB operation may be faulty"
1130 depends on CPU_V7 && SMP
1131 help
1132 This option enables the workaround for the 742230 Cortex-A9
1133 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1134 between two write operations may not ensure the correct visibility
1135 ordering of the two writes. This workaround sets a specific bit in
1136 the diagnostic register of the Cortex-A9 which causes the DMB
1137 instruction to behave as a DSB, ensuring the correct behaviour of
1138 the two writes.
1139
Will Deacona672e992010-09-14 09:53:02 +01001140config ARM_ERRATA_742231
1141 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1142 depends on CPU_V7 && SMP
1143 help
1144 This option enables the workaround for the 742231 Cortex-A9
1145 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1146 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1147 accessing some data located in the same cache line, may get corrupted
1148 data due to bad handling of the address hazard when the line gets
1149 replaced from one of the CPUs at the same time as another CPU is
1150 accessing it. This workaround sets specific bits in the diagnostic
1151 register of the Cortex-A9 which reduces the linefill issuing
1152 capabilities of the processor.
1153
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001154config PL310_ERRATA_588369
1155 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001156 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001157 help
1158 The PL310 L2 cache controller implements three types of Clean &
1159 Invalidate maintenance operations: by Physical Address
1160 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1161 They are architecturally defined to behave as the execution of a
1162 clean operation followed immediately by an invalidate operation,
1163 both performing to the same memory location. This functionality
1164 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001165 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001166
1167config ARM_ERRATA_720789
1168 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1169 depends on CPU_V7 && SMP
1170 help
1171 This option enables the workaround for the 720789 Cortex-A9 (prior to
1172 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1173 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1174 As a consequence of this erratum, some TLB entries which should be
1175 invalidated are not, resulting in an incoherency in the system page
1176 tables. The workaround changes the TLB flushing routines to invalidate
1177 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001178
Russell King1f0090a2011-03-16 23:35:25 +00001179config PL310_ERRATA_727915
1180 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1181 depends on CACHE_L2X0
1182 help
1183 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1184 operation (offset 0x7FC). This operation runs in background so that
1185 PL310 can handle normal accesses while it is in progress. Under very
1186 rare circumstances, due to this erratum, write data can be lost when
1187 PL310 treats a cacheable write transaction during a Clean &
1188 Invalidate by Way operation.
1189
Will Deacon475d92f2010-09-28 14:02:02 +01001190config ARM_ERRATA_743622
1191 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1192 depends on CPU_V7
1193 help
1194 This option enables the workaround for the 743622 Cortex-A9
1195 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1196 optimisation in the Cortex-A9 Store Buffer may lead to data
1197 corruption. This workaround sets a specific bit in the diagnostic
1198 register of the Cortex-A9 which disables the Store Buffer
1199 optimisation, preventing the defect from occurring. This has no
1200 visible impact on the overall performance or power consumption of the
1201 processor.
1202
Will Deacon9a27c272011-02-18 16:36:35 +01001203config ARM_ERRATA_751472
1204 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1205 depends on CPU_V7 && SMP
1206 help
1207 This option enables the workaround for the 751472 Cortex-A9 (prior
1208 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1209 completion of a following broadcasted operation if the second
1210 operation is received by a CPU before the ICIALLUIS has completed,
1211 potentially leading to corrupted entries in the cache or TLB.
1212
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001213config ARM_ERRATA_753970
1214 bool "ARM errata: cache sync operation may be faulty"
1215 depends on CACHE_PL310
1216 help
1217 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1218
1219 Under some condition the effect of cache sync operation on
1220 the store buffer still remains when the operation completes.
1221 This means that the store buffer is always asked to drain and
1222 this prevents it from merging any further writes. The workaround
1223 is to replace the normal offset of cache sync operation (0x730)
1224 by another offset targeting an unmapped PL310 register 0x740.
1225 This has the same effect as the cache sync operation: store buffer
1226 drain and waiting for all buffers empty.
1227
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001228config ARM_ERRATA_754322
1229 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1230 depends on CPU_V7
1231 help
1232 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1233 r3p*) erratum. A speculative memory access may cause a page table walk
1234 which starts prior to an ASID switch but completes afterwards. This
1235 can populate the micro-TLB with a stale entry which may be hit with
1236 the new ASID. This workaround places two dsb instructions in the mm
1237 switching code so that no page table walks can cross the ASID switch.
1238
Will Deacon5dab26a2011-03-04 12:38:54 +01001239config ARM_ERRATA_754327
1240 bool "ARM errata: no automatic Store Buffer drain"
1241 depends on CPU_V7 && SMP
1242 help
1243 This option enables the workaround for the 754327 Cortex-A9 (prior to
1244 r2p0) erratum. The Store Buffer does not have any automatic draining
1245 mechanism and therefore a livelock may occur if an external agent
1246 continuously polls a memory location waiting to observe an update.
1247 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1248 written polling loops from denying visibility of updates to memory.
1249
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001250config PL310_ERRATA_727915
1251 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1252 depends on CACHE_L2X0
1253 help
1254 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1255 operation (offset 0x7FC). This operation runs in background so that
1256 PL310 can handle normal accesses while it is in progress. Under very
1257 rare circumstances, due to this erratum, write data can be lost when
1258 PL310 treats a cacheable write transaction during a Clean &
1259 Invalidate by Way operation.
1260
1261config KSAPI
1262 tristate "KSAPI support (EXPERIMENTAL)"
1263 depends on ARCH_MSM_SCORPION || ARCH_MSM_KRAIT
1264 default n
1265 help
1266 KSAPI: Performance monitoring tool for linux.
1267 KSAPI records performance statistics for Snapdragon linux platform.
1268 It uses the /proc FS as a means to exchange configuration data and
1269 counter statistics. It can monitor the counter statistics for
1270 Scorpion processor supported hardware performance counters on a per
1271 thread basis or AXI counters on an overall system basis.
1272
Linus Torvalds1da177e2005-04-16 15:20:36 -07001273endmenu
1274
1275source "arch/arm/common/Kconfig"
1276
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277menu "Bus support"
1278
1279config ARM_AMBA
1280 bool
1281
1282config ISA
1283 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 help
1285 Find out whether you have ISA slots on your motherboard. ISA is the
1286 name of a bus system, i.e. the way the CPU talks to the other stuff
1287 inside your box. Other bus systems are PCI, EISA, MicroChannel
1288 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1289 newer boards don't support it. If you have ISA, say Y, otherwise N.
1290
Russell King065909b2006-01-04 15:44:16 +00001291# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292config ISA_DMA
1293 bool
Russell King065909b2006-01-04 15:44:16 +00001294 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001295
Russell King065909b2006-01-04 15:44:16 +00001296# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001297config ISA_DMA_API
1298 bool
Al Viro5cae8412005-05-04 05:39:22 +01001299
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001301 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302 help
1303 Find out whether you have a PCI motherboard. PCI is the name of a
1304 bus system, i.e. the way the CPU talks to the other stuff inside
1305 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1306 VESA. If you have PCI, say Y, otherwise N.
1307
Anton Vorontsov52882172010-04-19 13:20:49 +01001308config PCI_DOMAINS
1309 bool
1310 depends on PCI
1311
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001312config PCI_NANOENGINE
1313 bool "BSE nanoEngine PCI support"
1314 depends on SA1100_NANOENGINE
1315 help
1316 Enable PCI on the BSE nanoEngine board.
1317
Matthew Wilcox36e23592007-07-10 10:54:40 -06001318config PCI_SYSCALL
1319 def_bool PCI
1320
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321# Select the host bridge type
1322config PCI_HOST_VIA82C505
1323 bool
1324 depends on PCI && ARCH_SHARK
1325 default y
1326
Mike Rapoporta0113a92007-11-25 08:55:34 +01001327config PCI_HOST_ITE8152
1328 bool
1329 depends on PCI && MACH_ARMCORE
1330 default y
1331 select DMABOUNCE
1332
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333source "drivers/pci/Kconfig"
1334
1335source "drivers/pcmcia/Kconfig"
1336
1337endmenu
1338
1339menu "Kernel Features"
1340
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001341source "kernel/time/Kconfig"
1342
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001344 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001345 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001346 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001347 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001348 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001349 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001350 MSM_SMP || ARCH_SHMOBILE
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001351 select USE_GENERIC_SMP_HELPERS
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001352 select HAVE_ARM_SCU if !MSM_SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353 help
1354 This enables support for systems with more than one CPU. If you have
1355 a system with only one CPU, like most personal computers, say N. If
1356 you have a system with more than one CPU, say Y.
1357
1358 If you say N here, the kernel will run on single and multiprocessor
1359 machines, but will use only one CPU of a multiprocessor machine. If
1360 you say Y here, the kernel will run on many, but not all, single
1361 processor machines. On a single processor machine, the kernel will
1362 run faster if you say N here.
1363
Adrian Bunk03502fa2008-02-03 15:50:21 +02001364 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001366 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367
1368 If you don't know what to do here, say N.
1369
Russell Kingf00ec482010-09-04 10:47:48 +01001370config SMP_ON_UP
1371 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1372 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001373 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001374 default y
1375 help
1376 SMP kernels contain instructions which fail on non-SMP processors.
1377 Enabling this option allows the kernel to modify itself to make
1378 these instructions safe. Disabling it allows about 1K of space
1379 savings.
1380
1381 If you don't know what to do here, say Y.
1382
Russell Kinga8cbcd92009-05-16 11:51:14 +01001383config HAVE_ARM_SCU
1384 bool
1385 depends on SMP
1386 help
1387 This option enables support for the ARM system coherency unit
1388
Russell Kingf32f4ce2009-05-16 12:14:21 +01001389config HAVE_ARM_TWD
1390 bool
1391 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001392 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001393 help
1394 This options enables support for the ARM timer and watchdog unit
1395
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001396choice
1397 prompt "Memory split"
1398 default VMSPLIT_3G
1399 help
1400 Select the desired split between kernel and user memory.
1401
1402 If you are not absolutely sure what you are doing, leave this
1403 option alone!
1404
1405 config VMSPLIT_3G
1406 bool "3G/1G user/kernel split"
1407 config VMSPLIT_2G
1408 bool "2G/2G user/kernel split"
1409 config VMSPLIT_1G
1410 bool "1G/3G user/kernel split"
1411endchoice
1412
1413config PAGE_OFFSET
1414 hex
1415 default 0x40000000 if VMSPLIT_1G
1416 default 0x80000000 if VMSPLIT_2G
1417 default 0xC0000000
1418
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419config NR_CPUS
1420 int "Maximum number of CPUs (2-32)"
1421 range 2 32
1422 depends on SMP
1423 default "4"
1424
Russell Kinga054a812005-11-02 22:24:33 +00001425config HOTPLUG_CPU
1426 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1427 depends on SMP && HOTPLUG && EXPERIMENTAL
1428 help
1429 Say Y here to experiment with turning CPUs off and on. CPUs
1430 can be controlled through /sys/devices/system/cpu.
1431
Russell King37ee16a2005-11-08 19:08:05 +00001432config LOCAL_TIMERS
1433 bool "Use local timer interrupts"
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001434 depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1435 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500 || \
1436 MSM_SMP)
Russell King37ee16a2005-11-08 19:08:05 +00001437 default y
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001438 select HAVE_ARM_TWD if (!MSM_SMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001439 help
1440 Enable support for local timers on SMP platforms, rather then the
1441 legacy IPI broadcast method. Local timers allows the system
1442 accounting to be spread across the timer interval, preventing a
1443 "thundering herd" at every timer tick.
1444
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001445source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446
Russell Kingf8065812006-03-02 22:41:59 +00001447config HZ
1448 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001449 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001450 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001451 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001452 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001453 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001454 default 100
1455
Catalin Marinas16c79652009-07-24 12:33:02 +01001456config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001457 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001458 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001459 select AEABI
1460 select ARM_ASM_UNIFIED
1461 help
1462 By enabling this option, the kernel will be compiled in
1463 Thumb-2 mode. A compiler/assembler that understand the unified
1464 ARM-Thumb syntax is needed.
1465
1466 If unsure, say N.
1467
Dave Martin6f685c52011-03-03 11:41:12 +01001468config THUMB2_AVOID_R_ARM_THM_JUMP11
1469 bool "Work around buggy Thumb-2 short branch relocations in gas"
1470 depends on THUMB2_KERNEL && MODULES
1471 default y
1472 help
1473 Various binutils versions can resolve Thumb-2 branches to
1474 locally-defined, preemptible global symbols as short-range "b.n"
1475 branch instructions.
1476
1477 This is a problem, because there's no guarantee the final
1478 destination of the symbol, or any candidate locations for a
1479 trampoline, are within range of the branch. For this reason, the
1480 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1481 relocation in modules at all, and it makes little sense to add
1482 support.
1483
1484 The symptom is that the kernel fails with an "unsupported
1485 relocation" error when loading some modules.
1486
1487 Until fixed tools are available, passing
1488 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1489 code which hits this problem, at the cost of a bit of extra runtime
1490 stack usage in some cases.
1491
1492 The problem is described in more detail at:
1493 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1494
1495 Only Thumb-2 kernels are affected.
1496
1497 Unless you are sure your tools don't have this problem, say Y.
1498
Catalin Marinas0becb082009-07-24 12:32:53 +01001499config ARM_ASM_UNIFIED
1500 bool
1501
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001502config AEABI
1503 bool "Use the ARM EABI to compile the kernel"
1504 help
1505 This option allows for the kernel to be compiled using the latest
1506 ARM ABI (aka EABI). This is only useful if you are using a user
1507 space environment that is also compiled with EABI.
1508
1509 Since there are major incompatibilities between the legacy ABI and
1510 EABI, especially with regard to structure member alignment, this
1511 option also changes the kernel syscall calling convention to
1512 disambiguate both ABIs and allow for backward compatibility support
1513 (selected with CONFIG_OABI_COMPAT).
1514
1515 To use this you need GCC version 4.0.0 or later.
1516
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001517config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001518 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001519 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001520 default y
1521 help
1522 This option preserves the old syscall interface along with the
1523 new (ARM EABI) one. It also provides a compatibility layer to
1524 intercept syscalls that have structure arguments which layout
1525 in memory differs between the legacy ABI and the new ARM EABI
1526 (only for non "thumb" binaries). This option adds a tiny
1527 overhead to all syscalls and produces a slightly larger kernel.
1528 If you know you'll be using only pure EABI user space then you
1529 can say N here. If this option is not selected and you attempt
1530 to execute a legacy ABI binary then the result will be
1531 UNPREDICTABLE (in fact it can be predicted that it won't work
1532 at all). If in doubt say Y.
1533
Mel Gormaneb335752009-05-13 17:34:48 +01001534config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001535 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001536
Russell King05944d72006-11-30 20:43:51 +00001537config ARCH_SPARSEMEM_ENABLE
1538 bool
1539
Russell King07a2f732008-10-01 21:39:58 +01001540config ARCH_SPARSEMEM_DEFAULT
1541 def_bool ARCH_SPARSEMEM_ENABLE
1542
Russell King05944d72006-11-30 20:43:51 +00001543config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001544 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001545
Will Deacon7b7bf492011-05-19 13:21:14 +01001546config HAVE_ARCH_PFN_VALID
1547 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1548
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001549config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001550 bool "High Memory Support"
1551 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001552 help
1553 The address space of ARM processors is only 4 Gigabytes large
1554 and it has to accommodate user address space, kernel address
1555 space as well as some memory mapped IO. That means that, if you
1556 have a large amount of physical memory and/or IO, not all of the
1557 memory can be "permanently mapped" by the kernel. The physical
1558 memory that is not permanently mapped is called "high memory".
1559
1560 Depending on the selected kernel/user memory split, minimum
1561 vmalloc space and actual amount of RAM, you may not need this
1562 option which should result in a slightly faster kernel.
1563
1564 If unsure, say n.
1565
Russell King65cec8e2009-08-17 20:02:06 +01001566config HIGHPTE
1567 bool "Allocate 2nd-level pagetables from highmem"
1568 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001569
Jamie Iles1b8873a2010-02-02 20:25:44 +01001570config HW_PERF_EVENTS
1571 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001572 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001573 default y
1574 help
1575 Enable hardware performance counter support for perf events. If
1576 disabled, perf events will use software events only.
1577
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001578config VMALLOC_RESERVE
1579 hex "Reserved vmalloc space"
1580 default 0x08000000
1581 depends on MMU
1582 help
1583 Reserved vmalloc space if not specified on the kernel commandline.
1584
Dave Hansen3f22ab22005-06-23 00:07:43 -07001585source "mm/Kconfig"
1586
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001587config ARCH_MEMORY_PROBE
1588 def_bool n
1589 depends on MEMORY_HOTPLUG
1590
1591config ARCH_MEMORY_REMOVE
1592 def_bool n
1593 depends on MEMORY_HOTPLUG
1594
1595config DONT_RESERVE_FROM_MOVABLE_ZONE
Larry Basselb208a742011-08-12 14:48:37 -07001596 def_bool y
1597 depends on MEMORY_HOTPLUG
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001598
Larry Bassel150d5032011-09-20 14:32:13 -07001599config DONT_MAP_HOLE_AFTER_MEMBANK0
1600 def_bool n
1601 depends on SPARSEMEM
1602
Magnus Dammc1b2d972010-07-05 10:00:11 +01001603config FORCE_MAX_ZONEORDER
1604 int "Maximum zone order" if ARCH_SHMOBILE
1605 range 11 64 if ARCH_SHMOBILE
1606 default "9" if SA1111
1607 default "11"
1608 help
1609 The kernel memory allocator divides physically contiguous memory
1610 blocks into "zones", where each zone is a power of two number of
1611 pages. This option selects the largest power of two that the kernel
1612 keeps in the memory allocator. If you need to allocate very large
1613 blocks of physically contiguous memory, then you may need to
1614 increase this value.
1615
1616 This config option is actually maximum order plus one. For example,
1617 a value of 11 means that the largest free memory block is 2^10 pages.
1618
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619config LEDS
1620 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001621 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001622 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1624 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001625 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001626 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001627 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001628 help
1629 If you say Y here, the LEDs on your machine will be used
1630 to provide useful information about your current system status.
1631
1632 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1633 be able to select which LEDs are active using the options below. If
1634 you are compiling a kernel for the EBSA-110 or the LART however, the
1635 red LED will simply flash regularly to indicate that the system is
1636 still functional. It is safe to say Y here if you have a CATS
1637 system, but the driver will do nothing.
1638
1639config LEDS_TIMER
1640 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001641 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1642 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001643 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001644 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001645 default y if ARCH_EBSA110
1646 help
1647 If you say Y here, one of the system LEDs (the green one on the
1648 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1649 will flash regularly to indicate that the system is still
1650 operational. This is mainly useful to kernel hackers who are
1651 debugging unstable kernels.
1652
1653 The LART uses the same LED for both Timer LED and CPU usage LED
1654 functions. You may choose to use both, but the Timer LED function
1655 will overrule the CPU usage LED.
1656
1657config LEDS_CPU
1658 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001659 !ARCH_OMAP) \
1660 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1661 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662 depends on LEDS
1663 help
1664 If you say Y here, the red LED will be used to give a good real
1665 time indication of CPU usage, by lighting whenever the idle task
1666 is not currently executing.
1667
1668 The LART uses the same LED for both Timer LED and CPU usage LED
1669 functions. You may choose to use both, but the Timer LED function
1670 will overrule the CPU usage LED.
1671
1672config ALIGNMENT_TRAP
1673 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001674 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001676 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001678 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1680 address divisible by 4. On 32-bit ARM processors, these non-aligned
1681 fetch/store instructions will be emulated in software if you say
1682 here, which has a severe performance impact. This is necessary for
1683 correct operation of some network protocols. With an IP-only
1684 configuration it is safe to say N, otherwise say Y.
1685
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001686config UACCESS_WITH_MEMCPY
1687 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1688 depends on MMU && EXPERIMENTAL
1689 default y if CPU_FEROCEON
1690 help
1691 Implement faster copy_to_user and clear_user methods for CPU
1692 cores where a 8-word STM instruction give significantly higher
1693 memory write throughput than a sequence of individual 32bit stores.
1694
1695 A possible side effect is a slight increase in scheduling latency
1696 between threads sharing the same address space if they invoke
1697 such copy operations with large buffers.
1698
1699 However, if the CPU data cache is using a write-allocate mode,
1700 this option is unlikely to provide any performance gain.
1701
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001702config SECCOMP
1703 bool
1704 prompt "Enable seccomp to safely compute untrusted bytecode"
1705 ---help---
1706 This kernel feature is useful for number crunching applications
1707 that may need to compute untrusted bytecode during their
1708 execution. By using pipes or other transports made available to
1709 the process as file descriptors supporting the read/write
1710 syscalls, it's possible to isolate those applications in
1711 their own address space using seccomp. Once seccomp is
1712 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1713 and the task is only allowed to execute a few safe syscalls
1714 defined by each seccomp mode.
1715
Nicolas Pitrec743f382010-05-24 23:55:42 -04001716config CC_STACKPROTECTOR
1717 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001718 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001719 help
1720 This option turns on the -fstack-protector GCC feature. This
1721 feature puts, at the beginning of functions, a canary value on
1722 the stack just before the return address, and validates
1723 the value just before actually returning. Stack based buffer
1724 overflows (that need to overwrite this return address) now also
1725 overwrite the canary, which gets detected and the attack is then
1726 neutralized via a kernel panic.
1727 This feature requires gcc version 4.2 or above.
1728
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001729config DEPRECATED_PARAM_STRUCT
1730 bool "Provide old way to pass kernel parameters"
1731 help
1732 This was deprecated in 2001 and announced to live on for 5 years.
1733 Some old boot loaders still use this way.
1734
Dima Zavin76594492011-08-23 15:56:50 -07001735config ARM_FLUSH_CONSOLE_ON_RESTART
1736 bool "Force flush the console on restart"
1737 help
1738 If the console is locked while the system is rebooted, the messages
1739 in the temporary logbuffer would not have propogated to all the
1740 console drivers. This option forces the console lock to be
1741 released if it failed to be acquired, which will cause all the
1742 pending messages to be flushed.
1743
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001744config CP_ACCESS
1745 tristate "CP register access tool"
1746 default m
1747 help
1748 Provide support for Coprocessor register access using /sys
1749 interface. Read and write to CP registers from userspace
1750 through sysfs interface. A sys file (cp_rw) will be created under
1751 /sys/devices/system/cpaccess/cpaccess0.
1752
1753 If unsure, say N.
1754
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755endmenu
1756
1757menu "Boot options"
1758
Grant Likely9eb8f672011-04-28 14:27:20 -06001759config USE_OF
1760 bool "Flattened Device Tree support"
1761 select OF
1762 select OF_EARLY_FLATTREE
1763 help
1764 Include support for flattened device tree machine descriptions.
1765
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766# Compressed boot loader in ROM. Yes, we really want to ask about
1767# TEXT and BSS so we preserve their values in the config files.
1768config ZBOOT_ROM_TEXT
1769 hex "Compressed ROM boot loader base address"
1770 default "0"
1771 help
1772 The physical address at which the ROM-able zImage is to be
1773 placed in the target. Platforms which normally make use of
1774 ROM-able zImage formats normally set this to a suitable
1775 value in their defconfig file.
1776
1777 If ZBOOT_ROM is not enabled, this has no effect.
1778
1779config ZBOOT_ROM_BSS
1780 hex "Compressed ROM boot loader BSS address"
1781 default "0"
1782 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001783 The base address of an area of read/write memory in the target
1784 for the ROM-able zImage which must be available while the
1785 decompressor is running. It must be large enough to hold the
1786 entire decompressed kernel plus an additional 128 KiB.
1787 Platforms which normally make use of ROM-able zImage formats
1788 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789
1790 If ZBOOT_ROM is not enabled, this has no effect.
1791
1792config ZBOOT_ROM
1793 bool "Compressed boot loader in ROM/flash"
1794 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1795 help
1796 Say Y here if you intend to execute your compressed kernel image
1797 (zImage) directly from ROM or flash. If unsure, say N.
1798
Simon Hormanf45b1142011-01-11 04:01:08 +01001799config ZBOOT_ROM_MMCIF
1800 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1801 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1802 help
1803 Say Y here to include experimental MMCIF loading code in the
1804 ROM-able zImage. With this enabled it is possible to write the
1805 the ROM-able zImage kernel image to an MMC card and boot the
1806 kernel straight from the reset vector. At reset the processor
1807 Mask ROM will load the first part of the the ROM-able zImage
1808 which in turn loads the rest the kernel image to RAM using the
1809 MMCIF hardware block.
1810
John Bonesioede5d5d2011-05-27 18:45:50 -04001811config ARM_APPENDED_DTB
1812 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1813 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1814 help
1815 With this option, the boot code will look for a device tree binary
1816 (DTB) appended to zImage
1817 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1818
1819 This is meant as a backward compatibility convenience for those
1820 systems with a bootloader that can't be upgraded to accommodate
1821 the documented boot protocol using a device tree.
1822
1823 Beware that there is very little in terms of protection against
1824 this option being confused by leftover garbage in memory that might
1825 look like a DTB header after a reboot if no actual DTB is appended
1826 to zImage. Do not leave this option active in a production kernel
1827 if you don't intend to always append a DTB. Proper passing of the
1828 location into r2 of a bootloader provided DTB is always preferable
1829 to this option.
1830
Nicolas Pitrebbc98d12011-09-13 22:37:07 -04001831config ARM_ATAG_DTB_COMPAT
1832 bool "Supplement the appended DTB with traditional ATAG information"
1833 depends on ARM_APPENDED_DTB
1834 help
1835 Some old bootloaders can't be updated to a DTB capable one, yet
1836 they provide ATAGs with memory configuration, the ramdisk address,
1837 the kernel cmdline string, etc. Such information is dynamically
1838 provided by the bootloader and can't always be stored in a static
1839 DTB. To allow a device tree enabled kernel to be used with such
1840 bootloaders, this option allows zImage to extract the information
1841 from the ATAG list and store it at run time into the appended DTB.
1842
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843config CMDLINE
1844 string "Default kernel command string"
1845 default ""
1846 help
1847 On some architectures (EBSA110 and CATS), there is currently no way
1848 for the boot loader to pass arguments to the kernel. For these
1849 architectures, you should supply some command-line options at build
1850 time by entering them here. As a minimum, you should specify the
1851 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1852
Victor Boivie4394c122011-05-04 17:07:55 +01001853choice
1854 prompt "Kernel command line type" if CMDLINE != ""
1855 default CMDLINE_FROM_BOOTLOADER
1856
1857config CMDLINE_FROM_BOOTLOADER
1858 bool "Use bootloader kernel arguments if available"
1859 help
1860 Uses the command-line options passed by the boot loader. If
1861 the boot loader doesn't provide any, the default kernel command
1862 string provided in CMDLINE will be used.
1863
1864config CMDLINE_EXTEND
1865 bool "Extend bootloader kernel arguments"
1866 help
1867 The command-line arguments provided by the boot loader will be
1868 appended to the default kernel command string.
1869
Alexander Holler92d20402010-02-16 19:04:53 +01001870config CMDLINE_FORCE
1871 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001872 help
1873 Always use the default kernel command string, even if the boot
1874 loader passes other arguments to the kernel.
1875 This is useful if you cannot or don't want to change the
1876 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001877endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001878
Linus Torvalds1da177e2005-04-16 15:20:36 -07001879config XIP_KERNEL
1880 bool "Kernel Execute-In-Place from ROM"
1881 depends on !ZBOOT_ROM
1882 help
1883 Execute-In-Place allows the kernel to run from non-volatile storage
1884 directly addressable by the CPU, such as NOR flash. This saves RAM
1885 space since the text section of the kernel is not loaded from flash
1886 to RAM. Read-write sections, such as the data section and stack,
1887 are still copied to RAM. The XIP kernel is not compressed since
1888 it has to run directly from flash, so it will take more space to
1889 store it. The flash address used to link the kernel object files,
1890 and for storing it, is configuration dependent. Therefore, if you
1891 say Y here, you must know the proper physical address where to
1892 store the kernel image depending on your own flash memory usage.
1893
1894 Also note that the make target becomes "make xipImage" rather than
1895 "make zImage" or "make Image". The final kernel binary to put in
1896 ROM memory will be arch/arm/boot/xipImage.
1897
1898 If unsure, say N.
1899
1900config XIP_PHYS_ADDR
1901 hex "XIP Kernel Physical Location"
1902 depends on XIP_KERNEL
1903 default "0x00080000"
1904 help
1905 This is the physical address in your flash memory the kernel will
1906 be linked for and stored to. This address is dependent on your
1907 own flash usage.
1908
Richard Purdiec587e4a2007-02-06 21:29:00 +01001909config KEXEC
1910 bool "Kexec system call (EXPERIMENTAL)"
1911 depends on EXPERIMENTAL
1912 help
1913 kexec is a system call that implements the ability to shutdown your
1914 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001915 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001916 you can start any kernel with it, not just Linux.
1917
1918 It is an ongoing process to be certain the hardware in a machine
1919 is properly shutdown, so do not be surprised if this code does not
1920 initially work for you. It may help to enable device hotplugging
1921 support.
1922
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001923config ATAGS_PROC
1924 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001925 depends on KEXEC
1926 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001927 help
1928 Should the atags used to boot the kernel be exported in an "atags"
1929 file in procfs. Useful with kexec.
1930
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001931config CRASH_DUMP
1932 bool "Build kdump crash kernel (EXPERIMENTAL)"
1933 depends on EXPERIMENTAL
1934 help
1935 Generate crash dump after being started by kexec. This should
1936 be normally only set in special crash dump kernels which are
1937 loaded in the main kernel with kexec-tools into a specially
1938 reserved region and then later executed after a crash by
1939 kdump/kexec. The crash dump kernel must be compiled to a
1940 memory address not used by the main kernel
1941
1942 For more details see Documentation/kdump/kdump.txt
1943
Eric Miaoe69edc792010-07-05 15:56:50 +02001944config AUTO_ZRELADDR
1945 bool "Auto calculation of the decompressed kernel image address"
1946 depends on !ZBOOT_ROM && !ARCH_U300
1947 help
1948 ZRELADDR is the physical address where the decompressed kernel
1949 image will be placed. If AUTO_ZRELADDR is selected, the address
1950 will be determined at run-time by masking the current IP with
1951 0xf8000000. This assumes the zImage being placed in the first 128MB
1952 from start of memory.
1953
Linus Torvalds1da177e2005-04-16 15:20:36 -07001954endmenu
1955
Russell Kingac9d7ef2008-08-18 17:26:00 +01001956menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957
Ben Dooks89c52ed2009-07-30 23:23:24 +01001958if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001959
1960source "drivers/cpufreq/Kconfig"
1961
Yong Shen64f102b2010-10-21 21:18:59 +08001962config CPU_FREQ_IMX
1963 tristate "CPUfreq driver for i.MX CPUs"
1964 depends on ARCH_MXC && CPU_FREQ
1965 help
1966 This enables the CPUfreq driver for i.MX CPUs.
1967
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968config CPU_FREQ_SA1100
1969 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970
1971config CPU_FREQ_SA1110
1972 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973
1974config CPU_FREQ_INTEGRATOR
1975 tristate "CPUfreq driver for ARM Integrator CPUs"
1976 depends on ARCH_INTEGRATOR && CPU_FREQ
1977 default y
1978 help
1979 This enables the CPUfreq driver for ARM Integrator CPUs.
1980
1981 For details, take a look at <file:Documentation/cpu-freq>.
1982
1983 If in doubt, say Y.
1984
Russell King9e2697f2007-12-14 13:30:14 +00001985config CPU_FREQ_PXA
1986 bool
1987 depends on CPU_FREQ && ARCH_PXA && PXA25x
1988 default y
1989 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1990
Mark Brownb3748dd2009-06-15 11:23:20 +01001991config CPU_FREQ_S3C64XX
1992 bool "CPUfreq support for Samsung S3C64XX CPUs"
1993 depends on CPU_FREQ && CPU_S3C6410
1994
Ben Dooks9d56c022009-07-30 23:23:25 +01001995config CPU_FREQ_S3C
1996 bool
1997 help
1998 Internal configuration node for common cpufreq on Samsung SoC
1999
2000config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002001 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002002 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2003 select CPU_FREQ_S3C
2004 help
2005 This enables the CPUfreq driver for the Samsung S3C24XX family
2006 of CPUs.
2007
2008 For details, take a look at <file:Documentation/cpu-freq>.
2009
2010 If in doubt, say N.
2011
2012config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002013 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002014 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2015 help
2016 Compile in support for changing the PLL frequency from the
2017 S3C24XX series CPUfreq driver. The PLL takes time to settle
2018 after a frequency change, so by default it is not enabled.
2019
2020 This also means that the PLL tables for the selected CPU(s) will
2021 be built which may increase the size of the kernel image.
2022
2023config CPU_FREQ_S3C24XX_DEBUG
2024 bool "Debug CPUfreq Samsung driver core"
2025 depends on CPU_FREQ_S3C24XX
2026 help
2027 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2028
2029config CPU_FREQ_S3C24XX_IODEBUG
2030 bool "Debug CPUfreq Samsung driver IO timing"
2031 depends on CPU_FREQ_S3C24XX
2032 help
2033 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2034
Ben Dookse6d197a2009-07-30 23:23:42 +01002035config CPU_FREQ_S3C24XX_DEBUGFS
2036 bool "Export debugfs for CPUFreq"
2037 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2038 help
2039 Export status information via debugfs.
2040
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041endif
2042
Russell Kingac9d7ef2008-08-18 17:26:00 +01002043source "drivers/cpuidle/Kconfig"
2044
2045endmenu
2046
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07002047config CPU_FREQ_MSM
2048 bool
2049 depends on CPU_FREQ && ARCH_MSM
2050 default y
2051 help
2052 This enables the CPUFreq driver for Qualcomm CPUs.
2053 If in doubt, say Y.
2054
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055menu "Floating point emulation"
2056
2057comment "At least one emulation must be selected"
2058
2059config FPE_NWFPE
2060 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002061 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 ---help---
2063 Say Y to include the NWFPE floating point emulator in the kernel.
2064 This is necessary to run most binaries. Linux does not currently
2065 support floating point hardware so you need to say Y here even if
2066 your machine has an FPA or floating point co-processor podule.
2067
2068 You may say N here if you are going to load the Acorn FPEmulator
2069 early in the bootup.
2070
2071config FPE_NWFPE_XP
2072 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002073 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074 help
2075 Say Y to include 80-bit support in the kernel floating-point
2076 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2077 Note that gcc does not generate 80-bit operations by default,
2078 so in most cases this option only enlarges the size of the
2079 floating point emulator without any good reason.
2080
2081 You almost surely want to say N here.
2082
2083config FPE_FASTFPE
2084 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002085 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086 ---help---
2087 Say Y here to include the FAST floating point emulator in the kernel.
2088 This is an experimental much faster emulator which now also has full
2089 precision for the mantissa. It does not support any exceptions.
2090 It is very simple, and approximately 3-6 times faster than NWFPE.
2091
2092 It should be sufficient for most programs. It may be not suitable
2093 for scientific calculations, but you have to check this for yourself.
2094 If you do not feel you need a faster FP emulation you should better
2095 choose NWFPE.
2096
2097config VFP
2098 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002099 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100 help
2101 Say Y to include VFP support code in the kernel. This is needed
2102 if your hardware includes a VFP unit.
2103
2104 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2105 release notes and additional status information.
2106
2107 Say N if your target does not have VFP hardware.
2108
Catalin Marinas25ebee02007-09-25 15:22:24 +01002109config VFPv3
2110 bool
2111 depends on VFP
2112 default y if CPU_V7
2113
Catalin Marinasb5872db2008-01-10 19:16:17 +01002114config NEON
2115 bool "Advanced SIMD (NEON) Extension support"
2116 depends on VFPv3 && CPU_V7
2117 help
2118 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2119 Extension.
2120
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121endmenu
2122
2123menu "Userspace binary formats"
2124
2125source "fs/Kconfig.binfmt"
2126
2127config ARTHUR
2128 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002129 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130 help
2131 Say Y here to include the kernel code necessary if you want to run
2132 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2133 experimental; if this sounds frightening, say N and sleep in peace.
2134 You can also say M here to compile this support as a module (which
2135 will be called arthur).
2136
2137endmenu
2138
2139menu "Power management options"
2140
Russell Kingeceab4a2005-11-15 11:31:41 +00002141source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002142
Johannes Bergf4cb5702007-12-08 02:14:00 +01002143config ARCH_SUSPEND_POSSIBLE
Rohit Vaswaniddeb52a2011-08-16 12:26:32 -07002144 depends on !ARCH_S5P64X0 && !ARCH_S5PC100 && !ARCH_FSM9XXX && !ARCH_MSM9615
Russell King6a786182011-04-02 10:15:28 +01002145 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2146 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002147 def_bool y
2148
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149endmenu
2150
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002151source "net/Kconfig"
2152
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002153source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154
2155source "fs/Kconfig"
2156
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157source "arch/arm/Kconfig.debug"
2158
2159source "security/Kconfig"
2160
2161source "crypto/Kconfig"
2162
2163source "lib/Kconfig"