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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
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_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 King74facff2011-06-02 11:16:22 +010040config ARM_HAS_SG_CHAIN
41 bool
42
Russell King1a189b92008-04-13 21:41:55 +010043config HAVE_PWM
44 bool
45
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010046config MIGHT_HAVE_PCI
47 bool
48
Ralf Baechle75e71532007-02-09 17:08:58 +000049config SYS_SUPPORTS_APM_EMULATION
50 bool
51
Russell King112f38a42010-12-15 19:23:07 +000052config HAVE_SCHED_CLOCK
53 bool
54
David Brownell0a938b92007-03-05 00:30:18 -080055config GENERIC_GPIO
56 bool
David Brownell0a938b92007-03-05 00:30:18 -080057
John Stultz5cfc8ee2010-03-24 00:22:36 +000058config ARCH_USES_GETTIMEOFFSET
59 bool
60 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010061
Kevin Hilman0567a0c2007-03-13 20:29:24 +010062config GENERIC_CLOCKEVENTS
63 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010064
Catalin Marinasa8655e82008-02-04 17:30:57 +010065config GENERIC_CLOCKEVENTS_BROADCAST
66 bool
67 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010068 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010069
Rob Herringbf9dd362011-03-04 23:51:59 +010070config KTIME_SCALAR
71 bool
72 default y
73
Linus Walleijbc581772009-09-15 17:30:37 +010074config HAVE_TCM
75 bool
76 select GENERIC_ALLOCATOR
77
Russell Kinge119bff2010-01-10 17:23:29 +000078config HAVE_PROC_CPU
79 bool
80
Al Viro5ea81762007-02-11 15:41:31 +000081config NO_IOPORT
82 bool
Al Viro5ea81762007-02-11 15:41:31 +000083
Linus Torvalds1da177e2005-04-16 15:20:36 -070084config EISA
85 bool
86 ---help---
87 The Extended Industry Standard Architecture (EISA) bus was
88 developed as an open alternative to the IBM MicroChannel bus.
89
90 The EISA bus provided some of the features of the IBM MicroChannel
91 bus while maintaining backward compatibility with cards made for
92 the older ISA bus. The EISA bus saw limited use between 1988 and
93 1995 when it was made obsolete by the PCI bus.
94
95 Say Y here if you are building a kernel for an EISA-based machine.
96
97 Otherwise, say N.
98
99config SBUS
100 bool
101
102config MCA
103 bool
104 help
105 MicroChannel Architecture is found in some IBM PS/2 machines and
106 laptops. It is a bus system similar to PCI or ISA. See
107 <file:Documentation/mca.txt> (and especially the web page given
108 there) before attempting to build an MCA bus kernel.
109
Russell Kingf16fb1e2007-04-28 09:59:37 +0100110config STACKTRACE_SUPPORT
111 bool
112 default y
113
Nicolas Pitref76e9152008-04-24 01:31:46 -0400114config HAVE_LATENCYTOP_SUPPORT
115 bool
116 depends on !SMP
117 default y
118
Russell Kingf16fb1e2007-04-28 09:59:37 +0100119config LOCKDEP_SUPPORT
120 bool
121 default y
122
Russell King7ad1bcb2006-08-27 12:07:02 +0100123config TRACE_IRQFLAGS_SUPPORT
124 bool
125 default y
126
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100127config HARDIRQS_SW_RESEND
128 bool
129 default y
130
131config GENERIC_IRQ_PROBE
132 bool
133 default y
134
Nick Piggin95c354f2008-01-30 13:31:20 +0100135config GENERIC_LOCKBREAK
136 bool
137 default y
138 depends on SMP && PREEMPT
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140config RWSEM_GENERIC_SPINLOCK
141 bool
142 default y
143
144config RWSEM_XCHGADD_ALGORITHM
145 bool
146
David Howellsf0d1b0b2006-12-08 02:37:49 -0800147config ARCH_HAS_ILOG2_U32
148 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800149
150config ARCH_HAS_ILOG2_U64
151 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800152
Ben Dooks89c52ed2009-07-30 23:23:24 +0100153config ARCH_HAS_CPUFREQ
154 bool
155 help
156 Internal node to signify that the ARCH has CPUFREQ support
157 and that the relevant menu configurations are displayed for
158 it.
159
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100160config ARCH_HAS_CPU_IDLE_WAIT
161 def_bool y
162
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800163config GENERIC_HWEIGHT
164 bool
165 default y
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167config GENERIC_CALIBRATE_DELAY
168 bool
169 default y
170
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100171config ARCH_MAY_HAVE_PC_FDC
172 bool
173
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800174config ZONE_DMA
175 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800176
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800177config NEED_DMA_MAP_STATE
178 def_bool y
179
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180config GENERIC_ISA_DMA
181 bool
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183config FIQ
184 bool
185
Al Viro034d2f52005-12-19 16:27:59 -0500186config ARCH_MTD_XIP
187 bool
188
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189config VECTORS_BASE
190 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900191 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100192 default DRAM_BASE if REMAP_VECTORS_TO_RAM
193 default 0x00000000
194 help
195 The base address of exception vectors.
196
Russell Kingdc21af92011-01-04 19:09:43 +0000197config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100198 bool "Patch physical to virtual translations at runtime" if EMBEDDED
199 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100200 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000201 depends on !ARCH_REALVIEW || !SPARSEMEM
202 help
Russell King111e9a52011-05-12 10:02:42 +0100203 Patch phys-to-virt and virt-to-phys translation functions at
204 boot and module load time according to the position of the
205 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000206
Russell King111e9a52011-05-12 10:02:42 +0100207 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100208 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000209
Russell Kingc1beced2011-08-10 10:23:45 +0100210 Only disable this option if you know that you do not require
211 this feature (eg, building a kernel for a single machine) and
212 you need to shrink the kernel to the minimal size.
213
Russell Kingcada3c02011-01-04 19:39:29 +0000214
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215source "init/Kconfig"
216
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700217source "kernel/Kconfig.freezer"
218
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219menu "System Type"
220
Hyok S. Choi3c427972009-07-24 12:35:00 +0100221config MMU
222 bool "MMU-based Paged Memory Management Support"
223 default y
224 help
225 Select if you want MMU-based virtualised addressing space
226 support by paged memory management. If unsure, say 'Y'.
227
Russell Kingccf50e22010-03-15 19:03:06 +0000228#
229# The "ARM system type" choice list is ordered alphabetically by option
230# text. Please add new entries in the option alphabetic order.
231#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232choice
233 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000234 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100236config ARCH_INTEGRATOR
237 bool "ARM Ltd. Integrator family"
238 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100239 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100240 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900241 select HAVE_MACH_CLKDEV
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
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900253 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000254 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100255 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100256 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000257 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000258 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000259 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100260 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 This enables support for ARM Ltd RealView boards.
263
264config ARCH_VERSATILE
265 bool "ARM Ltd. Versatile family"
266 select ARM_AMBA
267 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100268 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900269 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000270 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100271 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100272 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000273 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000274 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000275 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000276 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
278 This enables support for ARM Ltd Versatile board.
279
Russell Kingceade892010-02-11 21:44:53 +0000280config ARCH_VEXPRESS
281 bool "ARM Ltd. Versatile Express family"
282 select ARCH_WANT_OPTIONAL_GPIOLIB
283 select ARM_AMBA
284 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100285 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900286 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000287 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000288 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100289 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000290 select ICST
291 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000292 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000293 help
294 This enables support for the ARM Ltd Versatile Express boards.
295
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100296config ARCH_AT91
297 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100298 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700299 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100300 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100302 This enables support for systems based on the Atmel AT91RM9200,
303 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100304
Russell Kingccf50e22010-03-15 19:03:06 +0000305config ARCH_BCMRING
306 bool "Broadcom BCMRING"
307 depends on MMU
308 select CPU_V6
309 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100310 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100311 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000312 select GENERIC_CLOCKEVENTS
313 select ARCH_WANT_OPTIONAL_GPIOLIB
314 help
315 Support for Broadcom's BCMRing platform.
316
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100318 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000319 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000320 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000321 help
322 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300324config ARCH_CNS3XXX
325 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200326 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300327 select GENERIC_CLOCKEVENTS
328 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100329 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400330 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300331 help
332 Support for Cavium Networks CNS3XXX platform.
333
Russell King788c9702009-04-26 14:21:59 +0100334config ARCH_GEMINI
335 bool "Cortina Systems Gemini"
336 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100337 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000338 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100339 help
340 Support for the Cortina Systems Gemini family SoCs
341
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200342config ARCH_PRIMA2
343 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
344 select CPU_V7
345 select GENERIC_TIME
346 select NO_IOPORT
347 select GENERIC_CLOCKEVENTS
348 select CLKDEV_LOOKUP
349 select GENERIC_IRQ_CHIP
350 select USE_OF
351 select ZONE_DMA
352 help
353 Support for CSR SiRFSoC ARM Cortex A9 Platform
354
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355config ARCH_EBSA110
356 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000357 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100358 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000359 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000360 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 help
362 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000363 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 Ethernet interface, two PCMCIA sockets, two serial ports and a
365 parallel port.
366
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000367config ARCH_EP93XX
368 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000369 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000370 select ARM_AMBA
371 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100372 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700373 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100374 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000375 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000376 help
377 This enables support for the Cirrus EP93xx series of CPUs.
378
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379config ARCH_FOOTBRIDGE
380 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000381 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000383 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000384 help
385 Support for systems based on the DC21285 companion chip
386 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
Russell King788c9702009-04-26 14:21:59 +0100388config ARCH_MXC
389 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100390 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100391 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100392 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100393 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800394 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100395 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100396 help
397 Support for Freescale MXC/iMX-based family of processors
398
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800399config ARCH_MXS
400 bool "Freescale MXS-based"
401 select GENERIC_CLOCKEVENTS
402 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100403 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100404 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800405 help
406 Support for Freescale MXS-based family of processors
407
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100408config ARCH_NETX
409 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100410 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000411 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100412 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100413 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000414 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100415 This enables support for systems based on the Hilscher NetX Soc
416
417config ARCH_H720X
418 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000419 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100420 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000421 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100422 help
423 This enables support for systems based on the Hynix HMS720x
424
Russell King3b938be2007-05-12 11:25:44 +0100425config ARCH_IOP13XX
426 bool "IOP13xx-based"
427 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100429 select PLAT_IOP
430 select PCI
431 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100432 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100433 help
434 Support for Intel's IOP13XX (XScale) family of processors.
435
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100436config ARCH_IOP32X
437 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100438 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000439 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100440 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100441 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100442 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000443 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100444 Support for Intel's 80219 and IOP32X (XScale) family of
445 processors.
446
447config ARCH_IOP33X
448 bool "IOP33x-based"
449 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000450 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100451 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100452 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100453 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100454 help
455 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456
Russell King3b938be2007-05-12 11:25:44 +0100457config ARCH_IXP23XX
458 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100459 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000460 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100461 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000462 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100463 help
Russell King3b938be2007-05-12 11:25:44 +0100464 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465
466config ARCH_IXP2000
467 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100468 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100470 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000471 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000472 help
473 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474
Russell King3b938be2007-05-12 11:25:44 +0100475config ARCH_IXP4XX
476 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100477 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100478 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100480 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100481 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000482 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100483 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100484 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100485 help
Russell King3b938be2007-05-12 11:25:44 +0100486 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100487
Saeed Bisharaedabd382009-08-06 15:12:43 +0300488config ARCH_DOVE
489 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300490 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300491 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300492 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300493 select GENERIC_CLOCKEVENTS
494 select PLAT_ORION
495 help
496 Support for the Marvell Dove SoC 88AP510
497
Saeed Bishara651c74c2008-06-22 22:45:06 +0200498config ARCH_KIRKWOOD
499 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200501 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700502 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200503 select GENERIC_CLOCKEVENTS
504 select PLAT_ORION
505 help
506 Support for the following Marvell Kirkwood series SoCs:
507 88F6180, 88F6192 and 88F6281.
508
Kevin Wells40805942010-07-27 08:49:04 -0700509config ARCH_LPC32XX
510 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100511 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700512 select CPU_ARM926T
513 select ARCH_REQUIRE_GPIOLIB
514 select HAVE_IDE
515 select ARM_AMBA
516 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100517 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700518 select GENERIC_TIME
519 select GENERIC_CLOCKEVENTS
520 help
521 Support for the NXP LPC32XX family of processors
522
Russell King788c9702009-04-26 14:21:59 +0100523config ARCH_MV78XX0
524 bool "Marvell MV78xx0"
525 select CPU_FEROCEON
526 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100528 select GENERIC_CLOCKEVENTS
529 select PLAT_ORION
530 help
531 Support for the following Marvell MV78xx0 series SoCs:
532 MV781x0, MV782x0.
533
534config ARCH_ORION5X
535 bool "Marvell Orion"
536 depends on MMU
537 select CPU_FEROCEON
538 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700539 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100540 select GENERIC_CLOCKEVENTS
541 select PLAT_ORION
542 help
543 Support for the following Marvell Orion 5x series SoCs:
544 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
545 Orion-2 (5281), Orion-1-90 (6183).
546
547config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500548 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100549 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100550 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100551 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100552 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000553 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100554 select TICK_ONESHOT
555 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400556 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100557 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500558 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100559
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100560config ARCH_KS8695
561 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000562 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100563 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000564 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100565 help
566 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
567 System-on-Chip devices.
568
Russell King788c9702009-04-26 14:21:59 +0100569config ARCH_W90X900
570 bool "Nuvoton W90X900 CPU"
571 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100572 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100573 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100574 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100575 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200576 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100577 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
578 At present, the w90x900 has been renamed nuc900, regarding
579 the ARM series product line, you can login the following
580 link address to know more.
581
582 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
583 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400584
wanzongshuna62e9032009-12-31 15:06:05 +0100585config ARCH_NUC93X
586 bool "Nuvoton NUC93X CPU"
587 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100588 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100589 help
590 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
591 low-power and high performance MPEG-4/JPEG multimedia controller chip.
592
Erik Gillingc5f80062010-01-21 16:53:02 -0800593config ARCH_TEGRA
594 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000595 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100596 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800597 select GENERIC_TIME
598 select GENERIC_CLOCKEVENTS
599 select GENERIC_GPIO
600 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000601 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700602 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800603 help
604 This enables support for NVIDIA Tegra based systems (Tegra APX,
605 Tegra 6xx and Tegra 2 series).
606
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100607config ARCH_PNX4008
608 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000609 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100610 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000611 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100612 help
613 This enables support for Philips PNX4008 mobile platform.
614
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700616 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100617 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500618 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100619 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100620 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100621 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700622 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100623 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000624 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000625 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800626 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800627 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800628 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800629 select MULTI_IRQ_HANDLER
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000630 help
eric miao2c8086a2007-09-11 19:13:17 -0700631 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
Russell King788c9702009-04-26 14:21:59 +0100633config ARCH_MSM
634 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500635 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800636 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700637 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800638 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800639 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800640 Support for Qualcomm MSM/QSD based systems. This runs on the
641 apps processor of the MSM/QSD and depends on a shared memory
642 interface to the modem processor which runs the baseband
643 stack and controls some vital subsystems
644 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800645
Magnus Dammc793c1b2010-02-05 11:14:49 +0000646config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900647 bool "Renesas SH-Mobile / R-Mobile"
648 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900649 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900650 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900651 select GENERIC_CLOCKEVENTS
652 select NO_IOPORT
653 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000654 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200655 select PM_GENERIC_DOMAINS if PM
Magnus Dammc793c1b2010-02-05 11:14:49 +0000656 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900657 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000658
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659config ARCH_RPC
660 bool "RiscPC"
661 select ARCH_ACORN
662 select FIQ
663 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100664 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100665 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000666 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000667 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100668 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000669 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 help
671 On the Acorn Risc-PC, Linux can support the internal IDE disk and
672 CD-ROM interface, serial and parallel port, and the floppy drive.
673
674config ARCH_SA1100
675 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100676 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000677 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100678 select ISA
Russell King05944d72006-11-30 20:43:51 +0000679 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500680 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100681 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000682 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100683 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700684 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000685 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100686 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700687 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000688 help
689 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690
691config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900692 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800693 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100694 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700695 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900696 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000697 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900698 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 help
700 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
701 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000702 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703
Ben Dooks63b1f512010-04-30 16:32:26 +0900704 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300705 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900706 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
707
Ben Dooksa08ab632008-10-21 14:06:39 +0100708config ARCH_S3C64XX
709 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000710 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900711 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900712 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100713 select HAVE_CLK
Thomas Abraham226e85f2011-06-14 19:12:26 +0900714 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900715 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000716 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100717 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900718 select ARCH_REQUIRE_GPIOLIB
719 select SAMSUNG_CLKSRC
720 select SAMSUNG_IRQ_VIC_TIMER
721 select SAMSUNG_IRQ_UART
722 select S3C_GPIO_TRACK
723 select S3C_GPIO_PULL_UPDOWN
724 select S3C_GPIO_CFG_S3C24XX
725 select S3C_GPIO_CFG_S3C64XX
726 select S3C_DEV_NAND
727 select USB_ARCH_HAS_OHCI
728 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900729 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100731 help
732 Samsung S3C64XX series based systems
733
Kukjin Kim49b7a492010-09-07 15:47:18 +0900734config ARCH_S5P64X0
735 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900736 select CPU_V6
737 select GENERIC_GPIO
738 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900739 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900740 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900741 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900742 select GENERIC_CLOCKEVENTS
743 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900744 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900745 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900746 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900747 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
748 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900749
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200750config ARCH_S5PC100
751 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900752 select GENERIC_GPIO
753 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900754 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900755 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100756 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900757 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900758 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900759 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900760 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900761 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200762 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900763
Kukjin Kim170f4e42010-02-24 16:40:44 +0900764config ARCH_S5PV210
765 bool "Samsung S5PV210/S5PC110"
766 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900767 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900768 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900769 select GENERIC_GPIO
770 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900771 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900772 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900773 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900774 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900775 select GENERIC_CLOCKEVENTS
776 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900777 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900778 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900779 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900780 help
781 Samsung S5PV210/S5PC110 series based systems
782
Kukjin Kim10606aa2011-02-14 15:05:27 +0900783config ARCH_EXYNOS4
784 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900785 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900786 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900787 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900788 select GENERIC_GPIO
789 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900790 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900791 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900792 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900793 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900794 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900795 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900796 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900797 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900798
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799config ARCH_SHARK
800 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000801 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100802 select ISA
803 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100804 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100805 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000806 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000807 help
808 Support for the StrongARM based Digital DNARD machine, also known
809 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810
Hans J. Koch83ef3332010-09-17 18:13:56 +0200811config ARCH_TCC_926
812 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100813 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200814 select CPU_ARM926T
815 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100816 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200817 select GENERIC_CLOCKEVENTS
818 help
819 Support for Telechips TCC ARM926-based systems.
820
Linus Walleijd98aac72009-04-27 10:21:46 +0100821config ARCH_U300
822 bool "ST-Ericsson U300 Series"
823 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100824 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100825 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000826 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100827 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100828 select ARM_AMBA
829 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100830 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100831 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900832 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100833 select GENERIC_GPIO
834 help
835 Support for ST-Ericsson U300 series mobile platforms.
836
Russell Kingccf50e22010-03-15 19:03:06 +0000837config ARCH_U8500
838 bool "ST-Ericsson U8500 Series"
839 select CPU_V7
840 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000841 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100842 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100843 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100844 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000845 help
846 Support for ST-Ericsson's Ux500 architecture
847
848config ARCH_NOMADIK
849 bool "STMicroelectronics Nomadik"
850 select ARM_AMBA
851 select ARM_VIC
852 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100853 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000854 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000855 select ARCH_REQUIRE_GPIOLIB
856 help
857 Support for the Nomadik platform by ST-Ericsson
858
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100859config ARCH_DAVINCI
860 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100861 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700862 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100863 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700864 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100865 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700866 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100867 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530868 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100869 help
870 Support for TI's DaVinci platform.
871
Russell King3b938be2007-05-12 11:25:44 +0100872config ARCH_OMAP
873 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700874 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700875 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100876 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700877 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700878 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000879 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800880 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100881 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200882 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100883
viresh kumarcee37e52010-04-01 12:31:05 +0100884config PLAT_SPEAR
885 bool "ST SPEAr"
886 select ARM_AMBA
887 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100888 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100889 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100890 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100891 select HAVE_CLK
892 help
893 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
894
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100895config ARCH_VT8500
896 bool "VIA/WonderMedia 85xx"
897 select CPU_ARM926T
898 select GENERIC_GPIO
899 select ARCH_HAS_CPUFREQ
900 select GENERIC_CLOCKEVENTS
901 select ARCH_REQUIRE_GPIOLIB
902 select HAVE_PWM
903 help
904 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800905
John Linnb85a3ef2011-06-20 11:47:27 -0600906config ARCH_ZYNQ
907 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800908 select CPU_V7
909 select GENERIC_TIME
Binghua Duan02c981c2011-07-08 17:40:12 +0800910 select GENERIC_CLOCKEVENTS
911 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600912 select ARM_GIC
913 select ARM_AMBA
914 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800915 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800916 help
John Linnb85a3ef2011-06-20 11:47:27 -0600917 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918endchoice
919
Russell Kingccf50e22010-03-15 19:03:06 +0000920#
921# This is sorted alphabetically by mach-* pathname. However, plat-*
922# Kconfigs may be included either alphabetically (according to the
923# plat- suffix) or along side the corresponding mach-* source.
924#
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-at91/Kconfig"
926
927source "arch/arm/mach-bcmring/Kconfig"
928
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929source "arch/arm/mach-clps711x/Kconfig"
930
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300931source "arch/arm/mach-cns3xxx/Kconfig"
932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/mach-davinci/Kconfig"
934
935source "arch/arm/mach-dove/Kconfig"
936
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000937source "arch/arm/mach-ep93xx/Kconfig"
938
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939source "arch/arm/mach-footbridge/Kconfig"
940
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200941source "arch/arm/mach-gemini/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-h720x/Kconfig"
944
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945source "arch/arm/mach-integrator/Kconfig"
946
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100947source "arch/arm/mach-iop32x/Kconfig"
948
949source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
Dan Williams285f5fa2006-12-07 02:59:39 +0100951source "arch/arm/mach-iop13xx/Kconfig"
952
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953source "arch/arm/mach-ixp4xx/Kconfig"
954
955source "arch/arm/mach-ixp2000/Kconfig"
956
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100957source "arch/arm/mach-ixp23xx/Kconfig"
958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-kirkwood/Kconfig"
960
961source "arch/arm/mach-ks8695/Kconfig"
962
Kevin Wells40805942010-07-27 08:49:04 -0700963source "arch/arm/mach-lpc32xx/Kconfig"
964
Russell King95b8f202010-01-14 11:43:54 +0000965source "arch/arm/mach-msm/Kconfig"
966
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200967source "arch/arm/mach-mv78xx0/Kconfig"
968
Russell King95b8f202010-01-14 11:43:54 +0000969source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800971source "arch/arm/mach-mxs/Kconfig"
972
Russell King95b8f202010-01-14 11:43:54 +0000973source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-nomadik/Kconfig"
976source "arch/arm/plat-nomadik/Kconfig"
977
Russell Kingd91a89102010-02-04 18:13:17 +0000978source "arch/arm/mach-nuc93x/Kconfig"
979
Tony Lindgrend48af152005-07-10 19:58:17 +0100980source "arch/arm/plat-omap/Kconfig"
981
982source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
Tony Lindgren1dbae812005-11-10 14:26:51 +0000984source "arch/arm/mach-omap2/Kconfig"
985
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400986source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400987
Russell King95b8f202010-01-14 11:43:54 +0000988source "arch/arm/mach-pxa/Kconfig"
989source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-mmp/Kconfig"
992
993source "arch/arm/mach-realview/Kconfig"
994
995source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300996
Ben Dookscf383672009-11-10 00:14:58 +0000997source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100998source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900999source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001000
viresh kumarcee37e52010-04-01 12:31:05 +01001001source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001002
Hans J. Koch83ef3332010-09-17 18:13:56 +02001003source "arch/arm/plat-tcc/Kconfig"
1004
Ben Dooksa21765a2007-02-11 18:31:01 +01001005if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001007source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001008source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001009source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001010source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001011endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
Ben Dooksa08ab632008-10-21 14:06:39 +01001013if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001014source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001015endif
1016
Kukjin Kim49b7a492010-09-07 15:47:18 +09001017source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001018
Byungho Min5a7652f2009-06-23 21:39:42 +09001019source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001020
Kukjin Kim170f4e42010-02-24 16:40:44 +09001021source "arch/arm/mach-s5pv210/Kconfig"
1022
Kukjin Kim10606aa2011-02-14 15:05:27 +09001023source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001024
Russell King882d01f2010-03-02 23:40:15 +00001025source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026
Erik Gillingc5f80062010-01-21 16:53:02 -08001027source "arch/arm/mach-tegra/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032
1033source "arch/arm/mach-versatile/Kconfig"
1034
Russell Kingceade892010-02-11 21:44:53 +00001035source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001036source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001037
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001038source "arch/arm/mach-vt8500/Kconfig"
1039
wanzongshun7ec80dd2008-12-03 03:55:38 +01001040source "arch/arm/mach-w90x900/Kconfig"
1041
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042# Definitions to make life easier
1043config ARCH_ACORN
1044 bool
1045
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001046config PLAT_IOP
1047 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001048 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001049 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001050
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001051config PLAT_ORION
1052 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001053 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001054 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001055 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001056
Eric Miaobd5ce432009-01-20 12:06:01 +08001057config PLAT_PXA
1058 bool
1059
Russell Kingf4b8b312010-01-14 12:48:06 +00001060config PLAT_VERSATILE
1061 bool
1062
Russell Kinge3887712010-01-14 13:30:16 +00001063config ARM_TIMER_SP804
1064 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001065 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001066
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067source arch/arm/mm/Kconfig
1068
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001069config IWMMXT
1070 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001071 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1072 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001073 help
1074 Enable support for iWMMXt context switching at run time if
1075 running on a CPU that supports it.
1076
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1078config XSCALE_PMU
1079 bool
1080 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1081 default y
1082
Jamie Iles0f4f0672010-02-02 20:23:15 +01001083config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001084 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001085 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001086 default y
1087 bool
1088
eric miao52108642010-12-13 09:42:34 +01001089config MULTI_IRQ_HANDLER
1090 bool
1091 help
1092 Allow each machine to specify it's own IRQ handler at run time.
1093
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001094if !MMU
1095source "arch/arm/Kconfig-nommu"
1096endif
1097
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001098config ARM_ERRATA_411920
1099 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001100 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001101 help
1102 Invalidation of the Instruction Cache operation can
1103 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1104 It does not affect the MPCore. This option enables the ARM Ltd.
1105 recommended workaround.
1106
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001107config ARM_ERRATA_430973
1108 bool "ARM errata: Stale prediction on replaced interworking branch"
1109 depends on CPU_V7
1110 help
1111 This option enables the workaround for the 430973 Cortex-A8
1112 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1113 interworking branch is replaced with another code sequence at the
1114 same virtual address, whether due to self-modifying code or virtual
1115 to physical address re-mapping, Cortex-A8 does not recover from the
1116 stale interworking branch prediction. This results in Cortex-A8
1117 executing the new code sequence in the incorrect ARM or Thumb state.
1118 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1119 and also flushes the branch target cache at every context switch.
1120 Note that setting specific bits in the ACTLR register may not be
1121 available in non-secure mode.
1122
Catalin Marinas855c5512009-04-30 17:06:15 +01001123config ARM_ERRATA_458693
1124 bool "ARM errata: Processor deadlock when a false hazard is created"
1125 depends on CPU_V7
1126 help
1127 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1128 erratum. For very specific sequences of memory operations, it is
1129 possible for a hazard condition intended for a cache line to instead
1130 be incorrectly associated with a different cache line. This false
1131 hazard might then cause a processor deadlock. The workaround enables
1132 the L1 caching of the NEON accesses and disables the PLD instruction
1133 in the ACTLR register. Note that setting specific bits in the ACTLR
1134 register may not be available in non-secure mode.
1135
Catalin Marinas0516e462009-04-30 17:06:20 +01001136config ARM_ERRATA_460075
1137 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1138 depends on CPU_V7
1139 help
1140 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1141 erratum. Any asynchronous access to the L2 cache may encounter a
1142 situation in which recent store transactions to the L2 cache are lost
1143 and overwritten with stale memory contents from external memory. The
1144 workaround disables the write-allocate mode for the L2 cache via the
1145 ACTLR register. Note that setting specific bits in the ACTLR register
1146 may not be available in non-secure mode.
1147
Will Deacon9f050272010-09-14 09:51:43 +01001148config ARM_ERRATA_742230
1149 bool "ARM errata: DMB operation may be faulty"
1150 depends on CPU_V7 && SMP
1151 help
1152 This option enables the workaround for the 742230 Cortex-A9
1153 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1154 between two write operations may not ensure the correct visibility
1155 ordering of the two writes. This workaround sets a specific bit in
1156 the diagnostic register of the Cortex-A9 which causes the DMB
1157 instruction to behave as a DSB, ensuring the correct behaviour of
1158 the two writes.
1159
Will Deacona672e992010-09-14 09:53:02 +01001160config ARM_ERRATA_742231
1161 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1162 depends on CPU_V7 && SMP
1163 help
1164 This option enables the workaround for the 742231 Cortex-A9
1165 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1166 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1167 accessing some data located in the same cache line, may get corrupted
1168 data due to bad handling of the address hazard when the line gets
1169 replaced from one of the CPUs at the same time as another CPU is
1170 accessing it. This workaround sets specific bits in the diagnostic
1171 register of the Cortex-A9 which reduces the linefill issuing
1172 capabilities of the processor.
1173
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001174config PL310_ERRATA_588369
1175 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001176 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001177 help
1178 The PL310 L2 cache controller implements three types of Clean &
1179 Invalidate maintenance operations: by Physical Address
1180 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1181 They are architecturally defined to behave as the execution of a
1182 clean operation followed immediately by an invalidate operation,
1183 both performing to the same memory location. This functionality
1184 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001185 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001186
1187config ARM_ERRATA_720789
1188 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1189 depends on CPU_V7 && SMP
1190 help
1191 This option enables the workaround for the 720789 Cortex-A9 (prior to
1192 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1193 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1194 As a consequence of this erratum, some TLB entries which should be
1195 invalidated are not, resulting in an incoherency in the system page
1196 tables. The workaround changes the TLB flushing routines to invalidate
1197 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001198
Russell King1f0090a2011-03-16 23:35:25 +00001199config PL310_ERRATA_727915
1200 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1201 depends on CACHE_L2X0
1202 help
1203 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1204 operation (offset 0x7FC). This operation runs in background so that
1205 PL310 can handle normal accesses while it is in progress. Under very
1206 rare circumstances, due to this erratum, write data can be lost when
1207 PL310 treats a cacheable write transaction during a Clean &
1208 Invalidate by Way operation.
1209
Will Deacon475d92f2010-09-28 14:02:02 +01001210config ARM_ERRATA_743622
1211 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1212 depends on CPU_V7
1213 help
1214 This option enables the workaround for the 743622 Cortex-A9
1215 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1216 optimisation in the Cortex-A9 Store Buffer may lead to data
1217 corruption. This workaround sets a specific bit in the diagnostic
1218 register of the Cortex-A9 which disables the Store Buffer
1219 optimisation, preventing the defect from occurring. This has no
1220 visible impact on the overall performance or power consumption of the
1221 processor.
1222
Will Deacon9a27c272011-02-18 16:36:35 +01001223config ARM_ERRATA_751472
1224 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1225 depends on CPU_V7 && SMP
1226 help
1227 This option enables the workaround for the 751472 Cortex-A9 (prior
1228 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1229 completion of a following broadcasted operation if the second
1230 operation is received by a CPU before the ICIALLUIS has completed,
1231 potentially leading to corrupted entries in the cache or TLB.
1232
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001233config ARM_ERRATA_753970
1234 bool "ARM errata: cache sync operation may be faulty"
1235 depends on CACHE_PL310
1236 help
1237 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1238
1239 Under some condition the effect of cache sync operation on
1240 the store buffer still remains when the operation completes.
1241 This means that the store buffer is always asked to drain and
1242 this prevents it from merging any further writes. The workaround
1243 is to replace the normal offset of cache sync operation (0x730)
1244 by another offset targeting an unmapped PL310 register 0x740.
1245 This has the same effect as the cache sync operation: store buffer
1246 drain and waiting for all buffers empty.
1247
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001248config ARM_ERRATA_754322
1249 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1250 depends on CPU_V7
1251 help
1252 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1253 r3p*) erratum. A speculative memory access may cause a page table walk
1254 which starts prior to an ASID switch but completes afterwards. This
1255 can populate the micro-TLB with a stale entry which may be hit with
1256 the new ASID. This workaround places two dsb instructions in the mm
1257 switching code so that no page table walks can cross the ASID switch.
1258
Will Deacon5dab26af2011-03-04 12:38:54 +01001259config ARM_ERRATA_754327
1260 bool "ARM errata: no automatic Store Buffer drain"
1261 depends on CPU_V7 && SMP
1262 help
1263 This option enables the workaround for the 754327 Cortex-A9 (prior to
1264 r2p0) erratum. The Store Buffer does not have any automatic draining
1265 mechanism and therefore a livelock may occur if an external agent
1266 continuously polls a memory location waiting to observe an update.
1267 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1268 written polling loops from denying visibility of updates to memory.
1269
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270endmenu
1271
1272source "arch/arm/common/Kconfig"
1273
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274menu "Bus support"
1275
1276config ARM_AMBA
1277 bool
1278
1279config ISA
1280 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001281 help
1282 Find out whether you have ISA slots on your motherboard. ISA is the
1283 name of a bus system, i.e. the way the CPU talks to the other stuff
1284 inside your box. Other bus systems are PCI, EISA, MicroChannel
1285 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1286 newer boards don't support it. If you have ISA, say Y, otherwise N.
1287
Russell King065909b2006-01-04 15:44:16 +00001288# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289config ISA_DMA
1290 bool
Russell King065909b2006-01-04 15:44:16 +00001291 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292
Russell King065909b2006-01-04 15:44:16 +00001293# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001294config ISA_DMA_API
1295 bool
Al Viro5cae8412005-05-04 05:39:22 +01001296
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001298 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 help
1300 Find out whether you have a PCI motherboard. PCI is the name of a
1301 bus system, i.e. the way the CPU talks to the other stuff inside
1302 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1303 VESA. If you have PCI, say Y, otherwise N.
1304
Anton Vorontsov52882172010-04-19 13:20:49 +01001305config PCI_DOMAINS
1306 bool
1307 depends on PCI
1308
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001309config PCI_NANOENGINE
1310 bool "BSE nanoEngine PCI support"
1311 depends on SA1100_NANOENGINE
1312 help
1313 Enable PCI on the BSE nanoEngine board.
1314
Matthew Wilcox36e23592007-07-10 10:54:40 -06001315config PCI_SYSCALL
1316 def_bool PCI
1317
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318# Select the host bridge type
1319config PCI_HOST_VIA82C505
1320 bool
1321 depends on PCI && ARCH_SHARK
1322 default y
1323
Mike Rapoporta0113a92007-11-25 08:55:34 +01001324config PCI_HOST_ITE8152
1325 bool
1326 depends on PCI && MACH_ARMCORE
1327 default y
1328 select DMABOUNCE
1329
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330source "drivers/pci/Kconfig"
1331
1332source "drivers/pcmcia/Kconfig"
1333
1334endmenu
1335
1336menu "Kernel Features"
1337
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001338source "kernel/time/Kconfig"
1339
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001341 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001342 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001343 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001344 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001345 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001346 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001347 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001348 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001349 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 help
1351 This enables support for systems with more than one CPU. If you have
1352 a system with only one CPU, like most personal computers, say N. If
1353 you have a system with more than one CPU, say Y.
1354
1355 If you say N here, the kernel will run on single and multiprocessor
1356 machines, but will use only one CPU of a multiprocessor machine. If
1357 you say Y here, the kernel will run on many, but not all, single
1358 processor machines. On a single processor machine, the kernel will
1359 run faster if you say N here.
1360
Adrian Bunk03502fa2008-02-03 15:50:21 +02001361 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001363 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364
1365 If you don't know what to do here, say N.
1366
Russell Kingf00ec482010-09-04 10:47:48 +01001367config SMP_ON_UP
1368 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1369 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001370 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001371 default y
1372 help
1373 SMP kernels contain instructions which fail on non-SMP processors.
1374 Enabling this option allows the kernel to modify itself to make
1375 these instructions safe. Disabling it allows about 1K of space
1376 savings.
1377
1378 If you don't know what to do here, say Y.
1379
Russell Kinga8cbcd92009-05-16 11:51:14 +01001380config HAVE_ARM_SCU
1381 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001382 help
1383 This option enables support for the ARM system coherency unit
1384
Russell Kingf32f4ce2009-05-16 12:14:21 +01001385config HAVE_ARM_TWD
1386 bool
1387 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001388 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001389 help
1390 This options enables support for the ARM timer and watchdog unit
1391
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001392choice
1393 prompt "Memory split"
1394 default VMSPLIT_3G
1395 help
1396 Select the desired split between kernel and user memory.
1397
1398 If you are not absolutely sure what you are doing, leave this
1399 option alone!
1400
1401 config VMSPLIT_3G
1402 bool "3G/1G user/kernel split"
1403 config VMSPLIT_2G
1404 bool "2G/2G user/kernel split"
1405 config VMSPLIT_1G
1406 bool "1G/3G user/kernel split"
1407endchoice
1408
1409config PAGE_OFFSET
1410 hex
1411 default 0x40000000 if VMSPLIT_1G
1412 default 0x80000000 if VMSPLIT_2G
1413 default 0xC0000000
1414
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415config NR_CPUS
1416 int "Maximum number of CPUs (2-32)"
1417 range 2 32
1418 depends on SMP
1419 default "4"
1420
Russell Kinga054a812005-11-02 22:24:33 +00001421config HOTPLUG_CPU
1422 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1423 depends on SMP && HOTPLUG && EXPERIMENTAL
1424 help
1425 Say Y here to experiment with turning CPUs off and on. CPUs
1426 can be controlled through /sys/devices/system/cpu.
1427
Russell King37ee16a2005-11-08 19:08:05 +00001428config LOCAL_TIMERS
1429 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001430 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001431 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001432 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001433 help
1434 Enable support for local timers on SMP platforms, rather then the
1435 legacy IPI broadcast method. Local timers allows the system
1436 accounting to be spread across the timer interval, preventing a
1437 "thundering herd" at every timer tick.
1438
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001439source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440
Russell Kingf8065812006-03-02 22:41:59 +00001441config HZ
1442 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001443 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001444 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001445 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001446 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001447 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001448 default 100
1449
Catalin Marinas16c79652009-07-24 12:33:02 +01001450config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001451 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001452 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001453 select AEABI
1454 select ARM_ASM_UNIFIED
1455 help
1456 By enabling this option, the kernel will be compiled in
1457 Thumb-2 mode. A compiler/assembler that understand the unified
1458 ARM-Thumb syntax is needed.
1459
1460 If unsure, say N.
1461
Dave Martin6f685c52011-03-03 11:41:12 +01001462config THUMB2_AVOID_R_ARM_THM_JUMP11
1463 bool "Work around buggy Thumb-2 short branch relocations in gas"
1464 depends on THUMB2_KERNEL && MODULES
1465 default y
1466 help
1467 Various binutils versions can resolve Thumb-2 branches to
1468 locally-defined, preemptible global symbols as short-range "b.n"
1469 branch instructions.
1470
1471 This is a problem, because there's no guarantee the final
1472 destination of the symbol, or any candidate locations for a
1473 trampoline, are within range of the branch. For this reason, the
1474 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1475 relocation in modules at all, and it makes little sense to add
1476 support.
1477
1478 The symptom is that the kernel fails with an "unsupported
1479 relocation" error when loading some modules.
1480
1481 Until fixed tools are available, passing
1482 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1483 code which hits this problem, at the cost of a bit of extra runtime
1484 stack usage in some cases.
1485
1486 The problem is described in more detail at:
1487 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1488
1489 Only Thumb-2 kernels are affected.
1490
1491 Unless you are sure your tools don't have this problem, say Y.
1492
Catalin Marinas0becb082009-07-24 12:32:53 +01001493config ARM_ASM_UNIFIED
1494 bool
1495
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001496config AEABI
1497 bool "Use the ARM EABI to compile the kernel"
1498 help
1499 This option allows for the kernel to be compiled using the latest
1500 ARM ABI (aka EABI). This is only useful if you are using a user
1501 space environment that is also compiled with EABI.
1502
1503 Since there are major incompatibilities between the legacy ABI and
1504 EABI, especially with regard to structure member alignment, this
1505 option also changes the kernel syscall calling convention to
1506 disambiguate both ABIs and allow for backward compatibility support
1507 (selected with CONFIG_OABI_COMPAT).
1508
1509 To use this you need GCC version 4.0.0 or later.
1510
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001511config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001512 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001513 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001514 default y
1515 help
1516 This option preserves the old syscall interface along with the
1517 new (ARM EABI) one. It also provides a compatibility layer to
1518 intercept syscalls that have structure arguments which layout
1519 in memory differs between the legacy ABI and the new ARM EABI
1520 (only for non "thumb" binaries). This option adds a tiny
1521 overhead to all syscalls and produces a slightly larger kernel.
1522 If you know you'll be using only pure EABI user space then you
1523 can say N here. If this option is not selected and you attempt
1524 to execute a legacy ABI binary then the result will be
1525 UNPREDICTABLE (in fact it can be predicted that it won't work
1526 at all). If in doubt say Y.
1527
Mel Gormaneb335752009-05-13 17:34:48 +01001528config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001529 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001530
Russell King05944d72006-11-30 20:43:51 +00001531config ARCH_SPARSEMEM_ENABLE
1532 bool
1533
Russell King07a2f732008-10-01 21:39:58 +01001534config ARCH_SPARSEMEM_DEFAULT
1535 def_bool ARCH_SPARSEMEM_ENABLE
1536
Russell King05944d72006-11-30 20:43:51 +00001537config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001538 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001539
Will Deacon7b7bf492011-05-19 13:21:14 +01001540config HAVE_ARCH_PFN_VALID
1541 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1542
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001543config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001544 bool "High Memory Support"
1545 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001546 help
1547 The address space of ARM processors is only 4 Gigabytes large
1548 and it has to accommodate user address space, kernel address
1549 space as well as some memory mapped IO. That means that, if you
1550 have a large amount of physical memory and/or IO, not all of the
1551 memory can be "permanently mapped" by the kernel. The physical
1552 memory that is not permanently mapped is called "high memory".
1553
1554 Depending on the selected kernel/user memory split, minimum
1555 vmalloc space and actual amount of RAM, you may not need this
1556 option which should result in a slightly faster kernel.
1557
1558 If unsure, say n.
1559
Russell King65cec8e2009-08-17 20:02:06 +01001560config HIGHPTE
1561 bool "Allocate 2nd-level pagetables from highmem"
1562 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001563
Jamie Iles1b8873a2010-02-02 20:25:44 +01001564config HW_PERF_EVENTS
1565 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001566 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001567 default y
1568 help
1569 Enable hardware performance counter support for perf events. If
1570 disabled, perf events will use software events only.
1571
Dave Hansen3f22ab22005-06-23 00:07:43 -07001572source "mm/Kconfig"
1573
Magnus Dammc1b2d972010-07-05 10:00:11 +01001574config FORCE_MAX_ZONEORDER
1575 int "Maximum zone order" if ARCH_SHMOBILE
1576 range 11 64 if ARCH_SHMOBILE
1577 default "9" if SA1111
1578 default "11"
1579 help
1580 The kernel memory allocator divides physically contiguous memory
1581 blocks into "zones", where each zone is a power of two number of
1582 pages. This option selects the largest power of two that the kernel
1583 keeps in the memory allocator. If you need to allocate very large
1584 blocks of physically contiguous memory, then you may need to
1585 increase this value.
1586
1587 This config option is actually maximum order plus one. For example,
1588 a value of 11 means that the largest free memory block is 2^10 pages.
1589
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590config LEDS
1591 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001592 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001593 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1595 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001596 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001597 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001598 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599 help
1600 If you say Y here, the LEDs on your machine will be used
1601 to provide useful information about your current system status.
1602
1603 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1604 be able to select which LEDs are active using the options below. If
1605 you are compiling a kernel for the EBSA-110 or the LART however, the
1606 red LED will simply flash regularly to indicate that the system is
1607 still functional. It is safe to say Y here if you have a CATS
1608 system, but the driver will do nothing.
1609
1610config LEDS_TIMER
1611 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001612 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1613 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001614 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001615 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616 default y if ARCH_EBSA110
1617 help
1618 If you say Y here, one of the system LEDs (the green one on the
1619 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1620 will flash regularly to indicate that the system is still
1621 operational. This is mainly useful to kernel hackers who are
1622 debugging unstable kernels.
1623
1624 The LART uses the same LED for both Timer LED and CPU usage LED
1625 functions. You may choose to use both, but the Timer LED function
1626 will overrule the CPU usage LED.
1627
1628config LEDS_CPU
1629 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001630 !ARCH_OMAP) \
1631 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1632 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001633 depends on LEDS
1634 help
1635 If you say Y here, the red LED will be used to give a good real
1636 time indication of CPU usage, by lighting whenever the idle task
1637 is not currently executing.
1638
1639 The LART uses the same LED for both Timer LED and CPU usage LED
1640 functions. You may choose to use both, but the Timer LED function
1641 will overrule the CPU usage LED.
1642
1643config ALIGNMENT_TRAP
1644 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001645 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001647 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001648 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001649 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001650 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1651 address divisible by 4. On 32-bit ARM processors, these non-aligned
1652 fetch/store instructions will be emulated in software if you say
1653 here, which has a severe performance impact. This is necessary for
1654 correct operation of some network protocols. With an IP-only
1655 configuration it is safe to say N, otherwise say Y.
1656
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001657config UACCESS_WITH_MEMCPY
1658 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1659 depends on MMU && EXPERIMENTAL
1660 default y if CPU_FEROCEON
1661 help
1662 Implement faster copy_to_user and clear_user methods for CPU
1663 cores where a 8-word STM instruction give significantly higher
1664 memory write throughput than a sequence of individual 32bit stores.
1665
1666 A possible side effect is a slight increase in scheduling latency
1667 between threads sharing the same address space if they invoke
1668 such copy operations with large buffers.
1669
1670 However, if the CPU data cache is using a write-allocate mode,
1671 this option is unlikely to provide any performance gain.
1672
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001673config SECCOMP
1674 bool
1675 prompt "Enable seccomp to safely compute untrusted bytecode"
1676 ---help---
1677 This kernel feature is useful for number crunching applications
1678 that may need to compute untrusted bytecode during their
1679 execution. By using pipes or other transports made available to
1680 the process as file descriptors supporting the read/write
1681 syscalls, it's possible to isolate those applications in
1682 their own address space using seccomp. Once seccomp is
1683 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1684 and the task is only allowed to execute a few safe syscalls
1685 defined by each seccomp mode.
1686
Nicolas Pitrec743f382010-05-24 23:55:42 -04001687config CC_STACKPROTECTOR
1688 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001689 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001690 help
1691 This option turns on the -fstack-protector GCC feature. This
1692 feature puts, at the beginning of functions, a canary value on
1693 the stack just before the return address, and validates
1694 the value just before actually returning. Stack based buffer
1695 overflows (that need to overwrite this return address) now also
1696 overwrite the canary, which gets detected and the attack is then
1697 neutralized via a kernel panic.
1698 This feature requires gcc version 4.2 or above.
1699
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001700config DEPRECATED_PARAM_STRUCT
1701 bool "Provide old way to pass kernel parameters"
1702 help
1703 This was deprecated in 2001 and announced to live on for 5 years.
1704 Some old boot loaders still use this way.
1705
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706endmenu
1707
1708menu "Boot options"
1709
Grant Likely9eb8f672011-04-28 14:27:20 -06001710config USE_OF
1711 bool "Flattened Device Tree support"
1712 select OF
1713 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001714 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001715 help
1716 Include support for flattened device tree machine descriptions.
1717
Linus Torvalds1da177e2005-04-16 15:20:36 -07001718# Compressed boot loader in ROM. Yes, we really want to ask about
1719# TEXT and BSS so we preserve their values in the config files.
1720config ZBOOT_ROM_TEXT
1721 hex "Compressed ROM boot loader base address"
1722 default "0"
1723 help
1724 The physical address at which the ROM-able zImage is to be
1725 placed in the target. Platforms which normally make use of
1726 ROM-able zImage formats normally set this to a suitable
1727 value in their defconfig file.
1728
1729 If ZBOOT_ROM is not enabled, this has no effect.
1730
1731config ZBOOT_ROM_BSS
1732 hex "Compressed ROM boot loader BSS address"
1733 default "0"
1734 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001735 The base address of an area of read/write memory in the target
1736 for the ROM-able zImage which must be available while the
1737 decompressor is running. It must be large enough to hold the
1738 entire decompressed kernel plus an additional 128 KiB.
1739 Platforms which normally make use of ROM-able zImage formats
1740 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741
1742 If ZBOOT_ROM is not enabled, this has no effect.
1743
1744config ZBOOT_ROM
1745 bool "Compressed boot loader in ROM/flash"
1746 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1747 help
1748 Say Y here if you intend to execute your compressed kernel image
1749 (zImage) directly from ROM or flash. If unsure, say N.
1750
Simon Horman090ab3f2011-04-26 06:29:53 +01001751choice
1752 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1753 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1754 default ZBOOT_ROM_NONE
1755 help
1756 Include experimental SD/MMC loading code in the ROM-able zImage.
1757 With this enabled it is possible to write the the ROM-able zImage
1758 kernel image to an MMC or SD card and boot the kernel straight
1759 from the reset vector. At reset the processor Mask ROM will load
1760 the first part of the the ROM-able zImage which in turn loads the
1761 rest the kernel image to RAM.
1762
1763config ZBOOT_ROM_NONE
1764 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1765 help
1766 Do not load image from SD or MMC
1767
Simon Hormanf45b1142011-01-11 04:01:08 +01001768config ZBOOT_ROM_MMCIF
1769 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001770 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001771 Load image from MMCIF hardware block.
1772
1773config ZBOOT_ROM_SH_MOBILE_SDHI
1774 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1775 help
1776 Load image from SDHI hardware block
1777
1778endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001779
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780config CMDLINE
1781 string "Default kernel command string"
1782 default ""
1783 help
1784 On some architectures (EBSA110 and CATS), there is currently no way
1785 for the boot loader to pass arguments to the kernel. For these
1786 architectures, you should supply some command-line options at build
1787 time by entering them here. As a minimum, you should specify the
1788 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1789
Victor Boivie4394c122011-05-04 17:07:55 +01001790choice
1791 prompt "Kernel command line type" if CMDLINE != ""
1792 default CMDLINE_FROM_BOOTLOADER
1793
1794config CMDLINE_FROM_BOOTLOADER
1795 bool "Use bootloader kernel arguments if available"
1796 help
1797 Uses the command-line options passed by the boot loader. If
1798 the boot loader doesn't provide any, the default kernel command
1799 string provided in CMDLINE will be used.
1800
1801config CMDLINE_EXTEND
1802 bool "Extend bootloader kernel arguments"
1803 help
1804 The command-line arguments provided by the boot loader will be
1805 appended to the default kernel command string.
1806
Alexander Holler92d20402010-02-16 19:04:53 +01001807config CMDLINE_FORCE
1808 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001809 help
1810 Always use the default kernel command string, even if the boot
1811 loader passes other arguments to the kernel.
1812 This is useful if you cannot or don't want to change the
1813 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001814endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001815
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816config XIP_KERNEL
1817 bool "Kernel Execute-In-Place from ROM"
1818 depends on !ZBOOT_ROM
1819 help
1820 Execute-In-Place allows the kernel to run from non-volatile storage
1821 directly addressable by the CPU, such as NOR flash. This saves RAM
1822 space since the text section of the kernel is not loaded from flash
1823 to RAM. Read-write sections, such as the data section and stack,
1824 are still copied to RAM. The XIP kernel is not compressed since
1825 it has to run directly from flash, so it will take more space to
1826 store it. The flash address used to link the kernel object files,
1827 and for storing it, is configuration dependent. Therefore, if you
1828 say Y here, you must know the proper physical address where to
1829 store the kernel image depending on your own flash memory usage.
1830
1831 Also note that the make target becomes "make xipImage" rather than
1832 "make zImage" or "make Image". The final kernel binary to put in
1833 ROM memory will be arch/arm/boot/xipImage.
1834
1835 If unsure, say N.
1836
1837config XIP_PHYS_ADDR
1838 hex "XIP Kernel Physical Location"
1839 depends on XIP_KERNEL
1840 default "0x00080000"
1841 help
1842 This is the physical address in your flash memory the kernel will
1843 be linked for and stored to. This address is dependent on your
1844 own flash usage.
1845
Richard Purdiec587e4a2007-02-06 21:29:00 +01001846config KEXEC
1847 bool "Kexec system call (EXPERIMENTAL)"
1848 depends on EXPERIMENTAL
1849 help
1850 kexec is a system call that implements the ability to shutdown your
1851 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001852 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001853 you can start any kernel with it, not just Linux.
1854
1855 It is an ongoing process to be certain the hardware in a machine
1856 is properly shutdown, so do not be surprised if this code does not
1857 initially work for you. It may help to enable device hotplugging
1858 support.
1859
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001860config ATAGS_PROC
1861 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001862 depends on KEXEC
1863 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001864 help
1865 Should the atags used to boot the kernel be exported in an "atags"
1866 file in procfs. Useful with kexec.
1867
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001868config CRASH_DUMP
1869 bool "Build kdump crash kernel (EXPERIMENTAL)"
1870 depends on EXPERIMENTAL
1871 help
1872 Generate crash dump after being started by kexec. This should
1873 be normally only set in special crash dump kernels which are
1874 loaded in the main kernel with kexec-tools into a specially
1875 reserved region and then later executed after a crash by
1876 kdump/kexec. The crash dump kernel must be compiled to a
1877 memory address not used by the main kernel
1878
1879 For more details see Documentation/kdump/kdump.txt
1880
Eric Miaoe69edc792010-07-05 15:56:50 +02001881config AUTO_ZRELADDR
1882 bool "Auto calculation of the decompressed kernel image address"
1883 depends on !ZBOOT_ROM && !ARCH_U300
1884 help
1885 ZRELADDR is the physical address where the decompressed kernel
1886 image will be placed. If AUTO_ZRELADDR is selected, the address
1887 will be determined at run-time by masking the current IP with
1888 0xf8000000. This assumes the zImage being placed in the first 128MB
1889 from start of memory.
1890
Linus Torvalds1da177e2005-04-16 15:20:36 -07001891endmenu
1892
Russell Kingac9d7ef2008-08-18 17:26:00 +01001893menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894
Ben Dooks89c52ed2009-07-30 23:23:24 +01001895if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896
1897source "drivers/cpufreq/Kconfig"
1898
Yong Shen64f102b2010-10-21 21:18:59 +08001899config CPU_FREQ_IMX
1900 tristate "CPUfreq driver for i.MX CPUs"
1901 depends on ARCH_MXC && CPU_FREQ
1902 help
1903 This enables the CPUfreq driver for i.MX CPUs.
1904
Linus Torvalds1da177e2005-04-16 15:20:36 -07001905config CPU_FREQ_SA1100
1906 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907
1908config CPU_FREQ_SA1110
1909 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910
1911config CPU_FREQ_INTEGRATOR
1912 tristate "CPUfreq driver for ARM Integrator CPUs"
1913 depends on ARCH_INTEGRATOR && CPU_FREQ
1914 default y
1915 help
1916 This enables the CPUfreq driver for ARM Integrator CPUs.
1917
1918 For details, take a look at <file:Documentation/cpu-freq>.
1919
1920 If in doubt, say Y.
1921
Russell King9e2697f2007-12-14 13:30:14 +00001922config CPU_FREQ_PXA
1923 bool
1924 depends on CPU_FREQ && ARCH_PXA && PXA25x
1925 default y
1926 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1927
Ben Dooks9d56c022009-07-30 23:23:25 +01001928config CPU_FREQ_S3C
1929 bool
1930 help
1931 Internal configuration node for common cpufreq on Samsung SoC
1932
1933config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001934 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001935 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1936 select CPU_FREQ_S3C
1937 help
1938 This enables the CPUfreq driver for the Samsung S3C24XX family
1939 of CPUs.
1940
1941 For details, take a look at <file:Documentation/cpu-freq>.
1942
1943 If in doubt, say N.
1944
1945config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001946 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001947 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1948 help
1949 Compile in support for changing the PLL frequency from the
1950 S3C24XX series CPUfreq driver. The PLL takes time to settle
1951 after a frequency change, so by default it is not enabled.
1952
1953 This also means that the PLL tables for the selected CPU(s) will
1954 be built which may increase the size of the kernel image.
1955
1956config CPU_FREQ_S3C24XX_DEBUG
1957 bool "Debug CPUfreq Samsung driver core"
1958 depends on CPU_FREQ_S3C24XX
1959 help
1960 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1961
1962config CPU_FREQ_S3C24XX_IODEBUG
1963 bool "Debug CPUfreq Samsung driver IO timing"
1964 depends on CPU_FREQ_S3C24XX
1965 help
1966 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1967
Ben Dookse6d197a2009-07-30 23:23:42 +01001968config CPU_FREQ_S3C24XX_DEBUGFS
1969 bool "Export debugfs for CPUFreq"
1970 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1971 help
1972 Export status information via debugfs.
1973
Linus Torvalds1da177e2005-04-16 15:20:36 -07001974endif
1975
Russell Kingac9d7ef2008-08-18 17:26:00 +01001976source "drivers/cpuidle/Kconfig"
1977
1978endmenu
1979
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980menu "Floating point emulation"
1981
1982comment "At least one emulation must be selected"
1983
1984config FPE_NWFPE
1985 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001986 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001987 ---help---
1988 Say Y to include the NWFPE floating point emulator in the kernel.
1989 This is necessary to run most binaries. Linux does not currently
1990 support floating point hardware so you need to say Y here even if
1991 your machine has an FPA or floating point co-processor podule.
1992
1993 You may say N here if you are going to load the Acorn FPEmulator
1994 early in the bootup.
1995
1996config FPE_NWFPE_XP
1997 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001998 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999 help
2000 Say Y to include 80-bit support in the kernel floating-point
2001 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2002 Note that gcc does not generate 80-bit operations by default,
2003 so in most cases this option only enlarges the size of the
2004 floating point emulator without any good reason.
2005
2006 You almost surely want to say N here.
2007
2008config FPE_FASTFPE
2009 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002010 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002011 ---help---
2012 Say Y here to include the FAST floating point emulator in the kernel.
2013 This is an experimental much faster emulator which now also has full
2014 precision for the mantissa. It does not support any exceptions.
2015 It is very simple, and approximately 3-6 times faster than NWFPE.
2016
2017 It should be sufficient for most programs. It may be not suitable
2018 for scientific calculations, but you have to check this for yourself.
2019 If you do not feel you need a faster FP emulation you should better
2020 choose NWFPE.
2021
2022config VFP
2023 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002024 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025 help
2026 Say Y to include VFP support code in the kernel. This is needed
2027 if your hardware includes a VFP unit.
2028
2029 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2030 release notes and additional status information.
2031
2032 Say N if your target does not have VFP hardware.
2033
Catalin Marinas25ebee02007-09-25 15:22:24 +01002034config VFPv3
2035 bool
2036 depends on VFP
2037 default y if CPU_V7
2038
Catalin Marinasb5872db2008-01-10 19:16:17 +01002039config NEON
2040 bool "Advanced SIMD (NEON) Extension support"
2041 depends on VFPv3 && CPU_V7
2042 help
2043 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2044 Extension.
2045
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046endmenu
2047
2048menu "Userspace binary formats"
2049
2050source "fs/Kconfig.binfmt"
2051
2052config ARTHUR
2053 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002054 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055 help
2056 Say Y here to include the kernel code necessary if you want to run
2057 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2058 experimental; if this sounds frightening, say N and sleep in peace.
2059 You can also say M here to compile this support as a module (which
2060 will be called arthur).
2061
2062endmenu
2063
2064menu "Power management options"
2065
Russell Kingeceab4a2005-11-15 11:31:41 +00002066source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002067
Johannes Bergf4cb5702007-12-08 02:14:00 +01002068config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002069 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002070 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2071 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002072 def_bool y
2073
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074endmenu
2075
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002076source "net/Kconfig"
2077
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002078source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079
2080source "fs/Kconfig"
2081
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082source "arch/arm/Kconfig.debug"
2083
2084source "security/Kconfig"
2085
2086source "crypto/Kconfig"
2087
2088source "lib/Kconfig"