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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
Will Deacond4c7b1f2010-11-04 18:24:22 +010010 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 help
30 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 Europe. There is an ARM Linux project with a web page at
35 <http://www.arm.linux.org.uk/>.
36
Russell King1a189b92008-04-13 21:41:55 +010037config HAVE_PWM
38 bool
39
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010040config MIGHT_HAVE_PCI
41 bool
42
Ralf Baechle75e71532007-02-09 17:08:58 +000043config SYS_SUPPORTS_APM_EMULATION
44 bool
45
Russell King112f38a42010-12-15 19:23:07 +000046config HAVE_SCHED_CLOCK
47 bool
48
David Brownell0a938b92007-03-05 00:30:18 -080049config GENERIC_GPIO
50 bool
David Brownell0a938b92007-03-05 00:30:18 -080051
John Stultz5cfc8ee2010-03-24 00:22:36 +000052config ARCH_USES_GETTIMEOFFSET
53 bool
54 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010055
Kevin Hilman0567a0c2007-03-13 20:29:24 +010056config GENERIC_CLOCKEVENTS
57 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010058
Catalin Marinasa8655e82008-02-04 17:30:57 +010059config GENERIC_CLOCKEVENTS_BROADCAST
60 bool
61 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010062 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010063
Linus Walleijbc581772009-09-15 17:30:37 +010064config HAVE_TCM
65 bool
66 select GENERIC_ALLOCATOR
67
Russell Kinge119bff2010-01-10 17:23:29 +000068config HAVE_PROC_CPU
69 bool
70
Al Viro5ea81762007-02-11 15:41:31 +000071config NO_IOPORT
72 bool
Al Viro5ea81762007-02-11 15:41:31 +000073
Linus Torvalds1da177e2005-04-16 15:20:36 -070074config EISA
75 bool
76 ---help---
77 The Extended Industry Standard Architecture (EISA) bus was
78 developed as an open alternative to the IBM MicroChannel bus.
79
80 The EISA bus provided some of the features of the IBM MicroChannel
81 bus while maintaining backward compatibility with cards made for
82 the older ISA bus. The EISA bus saw limited use between 1988 and
83 1995 when it was made obsolete by the PCI bus.
84
85 Say Y here if you are building a kernel for an EISA-based machine.
86
87 Otherwise, say N.
88
89config SBUS
90 bool
91
92config MCA
93 bool
94 help
95 MicroChannel Architecture is found in some IBM PS/2 machines and
96 laptops. It is a bus system similar to PCI or ISA. See
97 <file:Documentation/mca.txt> (and especially the web page given
98 there) before attempting to build an MCA bus kernel.
99
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100100config GENERIC_HARDIRQS
101 bool
102 default y
103
Russell Kingf16fb1e2007-04-28 09:59:37 +0100104config STACKTRACE_SUPPORT
105 bool
106 default y
107
Nicolas Pitref76e9152008-04-24 01:31:46 -0400108config HAVE_LATENCYTOP_SUPPORT
109 bool
110 depends on !SMP
111 default y
112
Russell Kingf16fb1e2007-04-28 09:59:37 +0100113config LOCKDEP_SUPPORT
114 bool
115 default y
116
Russell King7ad1bcb2006-08-27 12:07:02 +0100117config TRACE_IRQFLAGS_SUPPORT
118 bool
119 default y
120
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100121config HARDIRQS_SW_RESEND
122 bool
123 default y
124
125config GENERIC_IRQ_PROBE
126 bool
127 default y
128
Nick Piggin95c354f2008-01-30 13:31:20 +0100129config GENERIC_LOCKBREAK
130 bool
131 default y
132 depends on SMP && PREEMPT
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config RWSEM_GENERIC_SPINLOCK
135 bool
136 default y
137
138config RWSEM_XCHGADD_ALGORITHM
139 bool
140
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141config ARCH_HAS_ILOG2_U32
142 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143
144config ARCH_HAS_ILOG2_U64
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
Ben Dooks89c52ed2009-07-30 23:23:24 +0100147config ARCH_HAS_CPUFREQ
148 bool
149 help
150 Internal node to signify that the ARCH has CPUFREQ support
151 and that the relevant menu configurations are displayed for
152 it.
153
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100154config ARCH_HAS_CPU_IDLE_WAIT
155 def_bool y
156
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800157config GENERIC_HWEIGHT
158 bool
159 default y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config GENERIC_CALIBRATE_DELAY
162 bool
163 default y
164
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100165config ARCH_MAY_HAVE_PC_FDC
166 bool
167
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800168config ZONE_DMA
169 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800170
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800171config NEED_DMA_MAP_STATE
172 def_bool y
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174config GENERIC_ISA_DMA
175 bool
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config FIQ
178 bool
179
Al Viro034d2f52005-12-19 16:27:59 -0500180config ARCH_MTD_XIP
181 bool
182
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100183config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100184 def_bool y
185
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100186config ARM_L1_CACHE_SHIFT_6
187 bool
188 help
189 Setting ARM L1 cache line size to 64 Bytes.
190
Hyok S. Choic760fc12006-03-27 15:18:50 +0100191config VECTORS_BASE
192 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900193 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100194 default DRAM_BASE if REMAP_VECTORS_TO_RAM
195 default 0x00000000
196 help
197 The base address of exception vectors.
198
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199source "init/Kconfig"
200
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700201source "kernel/Kconfig.freezer"
202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203menu "System Type"
204
Hyok S. Choi3c427972009-07-24 12:35:00 +0100205config MMU
206 bool "MMU-based Paged Memory Management Support"
207 default y
208 help
209 Select if you want MMU-based virtualised addressing space
210 support by paged memory management. If unsure, say 'Y'.
211
Russell Kingccf50e22010-03-15 19:03:06 +0000212#
213# The "ARM system type" choice list is ordered alphabetically by option
214# text. Please add new entries in the option alphabetic order.
215#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216choice
217 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000218 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100220config ARCH_AAEC2000
221 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000222 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100223 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700224 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000225 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100226 help
227 This enables support for systems based on the Agilent AAEC-2000
228
229config ARCH_INTEGRATOR
230 bool "ARM Ltd. Integrator family"
231 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100232 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100233 select CLKDEV_LOOKUP
Russell Kingc5a0adb2010-01-16 20:16:10 +0000234 select ICST
Russell King13edd862010-01-15 21:49:23 +0000235 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000236 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100237 help
238 Support for ARM's Integrator platform.
239
240config ARCH_REALVIEW
241 bool "ARM Ltd. RealView family"
242 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100243 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000244 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000245 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100246 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100247 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000248 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000249 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100250 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100251 help
252 This enables support for ARM Ltd RealView boards.
253
254config ARCH_VERSATILE
255 bool "ARM Ltd. Versatile family"
256 select ARM_AMBA
257 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Russell King1da0c892010-12-15 21:56:47 +0000259 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100261 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100262 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000263 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000264 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 help
266 This enables support for ARM Ltd Versatile board.
267
Russell Kingceade892010-02-11 21:44:53 +0000268config ARCH_VEXPRESS
269 bool "ARM Ltd. Versatile Express family"
270 select ARCH_WANT_OPTIONAL_GPIOLIB
271 select ARM_AMBA
272 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100273 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000274 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000275 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000276 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000277 select ICST
278 select PLAT_VERSATILE
279 help
280 This enables support for the ARM Ltd Versatile Express boards.
281
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100282config ARCH_AT91
283 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100284 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700285 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100287 This enables support for systems based on the Atmel AT91RM9200,
288 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289
Russell Kingccf50e22010-03-15 19:03:06 +0000290config ARCH_BCMRING
291 bool "Broadcom BCMRING"
292 depends on MMU
293 select CPU_V6
294 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100295 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000296 select GENERIC_CLOCKEVENTS
297 select ARCH_WANT_OPTIONAL_GPIOLIB
298 help
299 Support for Broadcom's BCMRing platform.
300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000303 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000304 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000305 help
306 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300308config ARCH_CNS3XXX
309 bool "Cavium Networks CNS3XXX family"
310 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300311 select GENERIC_CLOCKEVENTS
312 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100313 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400314 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300315 help
316 Support for Cavium Networks CNS3XXX platform.
317
Russell King788c9702009-04-26 14:21:59 +0100318config ARCH_GEMINI
319 bool "Cortina Systems Gemini"
320 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100321 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000322 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100323 help
324 Support for the Cortina Systems Gemini family SoCs
325
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326config ARCH_EBSA110
327 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000328 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100329 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000330 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000331 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 help
333 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000334 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 Ethernet interface, two PCMCIA sockets, two serial ports and a
336 parallel port.
337
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000338config ARCH_EP93XX
339 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000340 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000341 select ARM_AMBA
342 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100343 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700344 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100345 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000346 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000347 help
348 This enables support for the Cirrus EP93xx series of CPUs.
349
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350config ARCH_FOOTBRIDGE
351 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000352 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000354 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000355 help
356 Support for systems based on the DC21285 companion chip
357 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
Russell King788c9702009-04-26 14:21:59 +0100359config ARCH_MXC
360 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100361 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100362 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100363 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100364 help
365 Support for Freescale MXC/iMX-based family of processors
366
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100367config ARCH_STMP3XXX
368 bool "Freescale STMP3xxx"
369 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100370 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100371 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100372 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100373 select USB_ARCH_HAS_EHCI
374 help
375 Support for systems based on the Freescale 3xxx CPUs.
376
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377config ARCH_NETX
378 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000379 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100381 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000382 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383 This enables support for systems based on the Hilscher NetX Soc
384
385config ARCH_H720X
386 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000387 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100388 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000389 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100390 help
391 This enables support for systems based on the Hynix HMS720x
392
Russell King3b938be2007-05-12 11:25:44 +0100393config ARCH_IOP13XX
394 bool "IOP13xx-based"
395 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000396 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100397 select PLAT_IOP
398 select PCI
399 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100400 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100401 help
402 Support for Intel's IOP13XX (XScale) family of processors.
403
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100404config ARCH_IOP32X
405 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100406 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100408 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100409 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100410 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000411 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100412 Support for Intel's 80219 and IOP32X (XScale) family of
413 processors.
414
415config ARCH_IOP33X
416 bool "IOP33x-based"
417 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000418 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100419 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100421 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100422 help
423 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
Russell King3b938be2007-05-12 11:25:44 +0100425config ARCH_IXP23XX
426 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100427 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000428 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100429 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000430 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100431 help
Russell King3b938be2007-05-12 11:25:44 +0100432 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
434config ARCH_IXP2000
435 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100436 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000437 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100438 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000439 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000440 help
441 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442
Russell King3b938be2007-05-12 11:25:44 +0100443config ARCH_IXP4XX
444 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100445 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000446 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100447 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100448 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000449 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100450 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100451 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100452 help
Russell King3b938be2007-05-12 11:25:44 +0100453 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100454
Saeed Bisharaedabd382009-08-06 15:12:43 +0300455config ARCH_DOVE
456 bool "Marvell Dove"
457 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300458 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300459 select GENERIC_CLOCKEVENTS
460 select PLAT_ORION
461 help
462 Support for the Marvell Dove SoC 88AP510
463
Saeed Bishara651c74c2008-06-22 22:45:06 +0200464config ARCH_KIRKWOOD
465 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200467 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700468 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200469 select GENERIC_CLOCKEVENTS
470 select PLAT_ORION
471 help
472 Support for the following Marvell Kirkwood series SoCs:
473 88F6180, 88F6192 and 88F6281.
474
Russell King788c9702009-04-26 14:21:59 +0100475config ARCH_LOKI
476 bool "Marvell Loki (88RC8480)"
477 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100478 select GENERIC_CLOCKEVENTS
479 select PLAT_ORION
480 help
481 Support for the Marvell Loki (88RC8480) SoC.
482
Kevin Wells40805942010-07-27 08:49:04 -0700483config ARCH_LPC32XX
484 bool "NXP LPC32XX"
485 select CPU_ARM926T
486 select ARCH_REQUIRE_GPIOLIB
487 select HAVE_IDE
488 select ARM_AMBA
489 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100490 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700491 select GENERIC_TIME
492 select GENERIC_CLOCKEVENTS
493 help
494 Support for the NXP LPC32XX family of processors
495
Russell King788c9702009-04-26 14:21:59 +0100496config ARCH_MV78XX0
497 bool "Marvell MV78xx0"
498 select CPU_FEROCEON
499 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700500 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100501 select GENERIC_CLOCKEVENTS
502 select PLAT_ORION
503 help
504 Support for the following Marvell MV78xx0 series SoCs:
505 MV781x0, MV782x0.
506
507config ARCH_ORION5X
508 bool "Marvell Orion"
509 depends on MMU
510 select CPU_FEROCEON
511 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700512 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100513 select GENERIC_CLOCKEVENTS
514 select PLAT_ORION
515 help
516 Support for the following Marvell Orion 5x series SoCs:
517 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
518 Orion-2 (5281), Orion-1-90 (6183).
519
520config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500521 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100522 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100523 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100524 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100525 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000526 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100527 select TICK_ONESHOT
528 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400529 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100530 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500531 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100532
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100533config ARCH_KS8695
534 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100536 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000537 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100538 help
539 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
540 System-on-Chip devices.
541
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100542config ARCH_NS9XXX
543 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000544 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100545 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100546 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700547 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100548 help
549 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
550 System.
551
552 <http://www.digi.com/products/microprocessors/index.jsp>
553
Russell King788c9702009-04-26 14:21:59 +0100554config ARCH_W90X900
555 bool "Nuvoton W90X900 CPU"
556 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100557 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100558 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100559 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200560 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100561 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
562 At present, the w90x900 has been renamed nuc900, regarding
563 the ARM series product line, you can login the following
564 link address to know more.
565
566 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
567 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400568
wanzongshuna62e9032009-12-31 15:06:05 +0100569config ARCH_NUC93X
570 bool "Nuvoton NUC93X CPU"
571 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100572 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100573 help
574 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
575 low-power and high performance MPEG-4/JPEG multimedia controller chip.
576
Erik Gillingc5f80062010-01-21 16:53:02 -0800577config ARCH_TEGRA
578 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000579 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800580 select GENERIC_TIME
581 select GENERIC_CLOCKEVENTS
582 select GENERIC_GPIO
583 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000584 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800585 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700586 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800587 help
588 This enables support for NVIDIA Tegra based systems (Tegra APX,
589 Tegra 6xx and Tegra 2 series).
590
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100591config ARCH_PNX4008
592 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000593 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100594 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000595 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100596 help
597 This enables support for Philips PNX4008 mobile platform.
598
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700600 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100601 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500602 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100603 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100604 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700605 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100606 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000607 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000608 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800609 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800610 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000611 help
eric miao2c8086a2007-09-11 19:13:17 -0700612 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613
Russell King788c9702009-04-26 14:21:59 +0100614config ARCH_MSM
615 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500616 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800617 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700618 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800619 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800620 Support for Qualcomm MSM/QSD based systems. This runs on the
621 apps processor of the MSM/QSD and depends on a shared memory
622 interface to the modem processor which runs the baseband
623 stack and controls some vital subsystems
624 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800625
Magnus Dammc793c1b2010-02-05 11:14:49 +0000626config ARCH_SHMOBILE
627 bool "Renesas SH-Mobile"
628 help
629 Support for Renesas's SH-Mobile ARM platforms
630
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631config ARCH_RPC
632 bool "RiscPC"
633 select ARCH_ACORN
634 select FIQ
635 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100636 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100637 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000638 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000639 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100640 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000641 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642 help
643 On the Acorn Risc-PC, Linux can support the internal IDE disk and
644 CD-ROM interface, serial and parallel port, and the floppy drive.
645
646config ARCH_SA1100
647 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000648 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100649 select ISA
Russell King05944d72006-11-30 20:43:51 +0000650 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500651 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100652 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000653 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100654 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700655 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000656 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100657 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700658 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000659 help
660 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661
662config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900663 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800664 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100665 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700666 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000667 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900668 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 help
670 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
671 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000672 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673
Ben Dooks63b1f512010-04-30 16:32:26 +0900674 Note, the S3C2416 and the S3C2450 are so close that they even share
675 the same SoC ID code. This means that there is no seperate machine
676 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
677
Ben Dooksa08ab632008-10-21 14:06:39 +0100678config ARCH_S3C64XX
679 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000680 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900681 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900682 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100683 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900684 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000685 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100686 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900687 select ARCH_REQUIRE_GPIOLIB
688 select SAMSUNG_CLKSRC
689 select SAMSUNG_IRQ_VIC_TIMER
690 select SAMSUNG_IRQ_UART
691 select S3C_GPIO_TRACK
692 select S3C_GPIO_PULL_UPDOWN
693 select S3C_GPIO_CFG_S3C24XX
694 select S3C_GPIO_CFG_S3C64XX
695 select S3C_DEV_NAND
696 select USB_ARCH_HAS_OHCI
697 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900698 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900699 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100700 help
701 Samsung S3C64XX series based systems
702
Kukjin Kim49b7a492010-09-07 15:47:18 +0900703config ARCH_S5P64X0
704 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900705 select CPU_V6
706 select GENERIC_GPIO
707 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900709 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900710 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900711 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900712 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900713 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
714 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900715
Kukjin Kim550db7f2010-01-29 10:19:26 +0900716config ARCH_S5P6442
717 bool "Samsung S5P6442"
718 select CPU_V6
719 select GENERIC_GPIO
720 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900721 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900722 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900723 help
724 Samsung S5P6442 CPU based systems
725
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200726config ARCH_S5PC100
727 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900728 select GENERIC_GPIO
729 select HAVE_CLK
730 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100731 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900732 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900734 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900735 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900736 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200737 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900738
Kukjin Kim170f4e42010-02-24 16:40:44 +0900739config ARCH_S5PV210
740 bool "Samsung S5PV210/S5PC110"
741 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900742 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900743 select GENERIC_GPIO
744 select HAVE_CLK
745 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900746 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900747 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900748 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900749 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900750 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900751 help
752 Samsung S5PV210/S5PC110 series based systems
753
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900754config ARCH_S5PV310
755 bool "Samsung S5PV310/S5PC210"
756 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900757 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900758 select GENERIC_GPIO
759 select HAVE_CLK
760 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900761 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900762 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900763 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900764 help
765 Samsung S5PV310 series based systems
766
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767config ARCH_SHARK
768 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000769 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100770 select ISA
771 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100772 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100773 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000774 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000775 help
776 Support for the StrongARM based Digital DNARD machine, also known
777 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778
Hans J. Koch83ef3332010-09-17 18:13:56 +0200779config ARCH_TCC_926
780 bool "Telechips TCC ARM926-based systems"
781 select CPU_ARM926T
782 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100783 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200784 select GENERIC_CLOCKEVENTS
785 help
786 Support for Telechips TCC ARM926-based systems.
787
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788config ARCH_LH7A40X
789 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000790 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100791 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000792 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793 help
794 Say Y here for systems based on one of the Sharp LH7A40X
795 System on a Chip processors. These CPUs include an ARM922T
796 core with a wide array of integrated devices for
797 hand-held and low-power applications.
798
Linus Walleijd98aac72009-04-27 10:21:46 +0100799config ARCH_U300
800 bool "ST-Ericsson U300 Series"
801 depends on MMU
802 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000803 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100804 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100805 select ARM_AMBA
806 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100807 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100808 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100809 select GENERIC_GPIO
810 help
811 Support for ST-Ericsson U300 series mobile platforms.
812
Russell Kingccf50e22010-03-15 19:03:06 +0000813config ARCH_U8500
814 bool "ST-Ericsson U8500 Series"
815 select CPU_V7
816 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000817 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100818 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100819 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000820 help
821 Support for ST-Ericsson's Ux500 architecture
822
823config ARCH_NOMADIK
824 bool "STMicroelectronics Nomadik"
825 select ARM_AMBA
826 select ARM_VIC
827 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100828 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000829 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000830 select ARCH_REQUIRE_GPIOLIB
831 help
832 Support for the Nomadik platform by ST-Ericsson
833
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100834config ARCH_DAVINCI
835 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100836 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700837 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100838 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700839 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100840 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700841 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530842 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100843 help
844 Support for TI's DaVinci platform.
845
Russell King3b938be2007-05-12 11:25:44 +0100846config ARCH_OMAP
847 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700848 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700849 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100850 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700851 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000852 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800853 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100854 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200855 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100856
viresh kumarcee37e52010-04-01 12:31:05 +0100857config PLAT_SPEAR
858 bool "ST SPEAr"
859 select ARM_AMBA
860 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100861 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100862 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100863 select HAVE_CLK
864 help
865 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867endchoice
868
Russell Kingccf50e22010-03-15 19:03:06 +0000869#
870# This is sorted alphabetically by mach-* pathname. However, plat-*
871# Kconfigs may be included either alphabetically (according to the
872# plat- suffix) or along side the corresponding mach-* source.
873#
Russell King95b8f202010-01-14 11:43:54 +0000874source "arch/arm/mach-aaec2000/Kconfig"
875
876source "arch/arm/mach-at91/Kconfig"
877
878source "arch/arm/mach-bcmring/Kconfig"
879
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880source "arch/arm/mach-clps711x/Kconfig"
881
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300882source "arch/arm/mach-cns3xxx/Kconfig"
883
Russell King95b8f202010-01-14 11:43:54 +0000884source "arch/arm/mach-davinci/Kconfig"
885
886source "arch/arm/mach-dove/Kconfig"
887
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000888source "arch/arm/mach-ep93xx/Kconfig"
889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890source "arch/arm/mach-footbridge/Kconfig"
891
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200892source "arch/arm/mach-gemini/Kconfig"
893
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-h720x/Kconfig"
895
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896source "arch/arm/mach-integrator/Kconfig"
897
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100898source "arch/arm/mach-iop32x/Kconfig"
899
900source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901
Dan Williams285f5fa2006-12-07 02:59:39 +0100902source "arch/arm/mach-iop13xx/Kconfig"
903
Linus Torvalds1da177e2005-04-16 15:20:36 -0700904source "arch/arm/mach-ixp4xx/Kconfig"
905
906source "arch/arm/mach-ixp2000/Kconfig"
907
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100908source "arch/arm/mach-ixp23xx/Kconfig"
909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/mach-kirkwood/Kconfig"
911
912source "arch/arm/mach-ks8695/Kconfig"
913
914source "arch/arm/mach-lh7a40x/Kconfig"
915
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200916source "arch/arm/mach-loki/Kconfig"
917
Kevin Wells40805942010-07-27 08:49:04 -0700918source "arch/arm/mach-lpc32xx/Kconfig"
919
Russell King95b8f202010-01-14 11:43:54 +0000920source "arch/arm/mach-msm/Kconfig"
921
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200922source "arch/arm/mach-mv78xx0/Kconfig"
923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-nomadik/Kconfig"
929source "arch/arm/plat-nomadik/Kconfig"
930
931source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932
Russell Kingd91a89102010-02-04 18:13:17 +0000933source "arch/arm/mach-nuc93x/Kconfig"
934
Tony Lindgrend48af152005-07-10 19:58:17 +0100935source "arch/arm/plat-omap/Kconfig"
936
937source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938
Tony Lindgren1dbae812005-11-10 14:26:51 +0000939source "arch/arm/mach-omap2/Kconfig"
940
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400941source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-pxa/Kconfig"
944source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945
Russell King95b8f202010-01-14 11:43:54 +0000946source "arch/arm/mach-mmp/Kconfig"
947
948source "arch/arm/mach-realview/Kconfig"
949
950source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300951
Ben Dookscf383672009-11-10 00:14:58 +0000952source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100953source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900954source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100955
viresh kumarcee37e52010-04-01 12:31:05 +0100956source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100957
Hans J. Koch83ef3332010-09-17 18:13:56 +0200958source "arch/arm/plat-tcc/Kconfig"
959
Ben Dooksa21765a2007-02-11 18:31:01 +0100960if ARCH_S3C2410
961source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100963source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900964source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100965source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100966source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100967endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968
Ben Dooksa08ab632008-10-21 14:06:39 +0100969if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900970source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100971endif
972
Kukjin Kim49b7a492010-09-07 15:47:18 +0900973source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900974
Kukjin Kim550db7f2010-01-29 10:19:26 +0900975source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100976
Byungho Min5a7652f2009-06-23 21:39:42 +0900977source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900978
Kukjin Kim170f4e42010-02-24 16:40:44 +0900979source "arch/arm/mach-s5pv210/Kconfig"
980
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900981source "arch/arm/mach-s5pv310/Kconfig"
982
Russell King882d01f2010-03-02 23:40:15 +0000983source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984
Russell King882d01f2010-03-02 23:40:15 +0000985source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800986
Erik Gillingc5f80062010-01-21 16:53:02 -0800987source "arch/arm/mach-tegra/Kconfig"
988
Russell King95b8f202010-01-14 11:43:54 +0000989source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100990
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
993source "arch/arm/mach-versatile/Kconfig"
994
Russell Kingceade892010-02-11 21:44:53 +0000995source "arch/arm/mach-vexpress/Kconfig"
996
wanzongshun7ec80dd2008-12-03 03:55:38 +0100997source "arch/arm/mach-w90x900/Kconfig"
998
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999# Definitions to make life easier
1000config ARCH_ACORN
1001 bool
1002
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001003config PLAT_IOP
1004 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001005 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001006 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001007
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001008config PLAT_ORION
1009 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001010 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001011
Eric Miaobd5ce432009-01-20 12:06:01 +08001012config PLAT_PXA
1013 bool
1014
Russell Kingf4b8b312010-01-14 12:48:06 +00001015config PLAT_VERSATILE
1016 bool
1017
Russell Kinge3887712010-01-14 13:30:16 +00001018config ARM_TIMER_SP804
1019 bool
1020
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021source arch/arm/mm/Kconfig
1022
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001023config IWMMXT
1024 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001025 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1026 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001027 help
1028 Enable support for iWMMXt context switching at run time if
1029 running on a CPU that supports it.
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1032config XSCALE_PMU
1033 bool
1034 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1035 default y
1036
Jamie Iles0f4f0672010-02-02 20:23:15 +01001037config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001038 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1039 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001040 default y
1041 bool
1042
eric miao52108642010-12-13 09:42:34 +01001043config MULTI_IRQ_HANDLER
1044 bool
1045 help
1046 Allow each machine to specify it's own IRQ handler at run time.
1047
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001048if !MMU
1049source "arch/arm/Kconfig-nommu"
1050endif
1051
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001052config ARM_ERRATA_411920
1053 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001054 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001055 help
1056 Invalidation of the Instruction Cache operation can
1057 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1058 It does not affect the MPCore. This option enables the ARM Ltd.
1059 recommended workaround.
1060
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001061config ARM_ERRATA_430973
1062 bool "ARM errata: Stale prediction on replaced interworking branch"
1063 depends on CPU_V7
1064 help
1065 This option enables the workaround for the 430973 Cortex-A8
1066 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1067 interworking branch is replaced with another code sequence at the
1068 same virtual address, whether due to self-modifying code or virtual
1069 to physical address re-mapping, Cortex-A8 does not recover from the
1070 stale interworking branch prediction. This results in Cortex-A8
1071 executing the new code sequence in the incorrect ARM or Thumb state.
1072 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1073 and also flushes the branch target cache at every context switch.
1074 Note that setting specific bits in the ACTLR register may not be
1075 available in non-secure mode.
1076
Catalin Marinas855c5512009-04-30 17:06:15 +01001077config ARM_ERRATA_458693
1078 bool "ARM errata: Processor deadlock when a false hazard is created"
1079 depends on CPU_V7
1080 help
1081 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1082 erratum. For very specific sequences of memory operations, it is
1083 possible for a hazard condition intended for a cache line to instead
1084 be incorrectly associated with a different cache line. This false
1085 hazard might then cause a processor deadlock. The workaround enables
1086 the L1 caching of the NEON accesses and disables the PLD instruction
1087 in the ACTLR register. Note that setting specific bits in the ACTLR
1088 register may not be available in non-secure mode.
1089
Catalin Marinas0516e462009-04-30 17:06:20 +01001090config ARM_ERRATA_460075
1091 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1092 depends on CPU_V7
1093 help
1094 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1095 erratum. Any asynchronous access to the L2 cache may encounter a
1096 situation in which recent store transactions to the L2 cache are lost
1097 and overwritten with stale memory contents from external memory. The
1098 workaround disables the write-allocate mode for the L2 cache via the
1099 ACTLR register. Note that setting specific bits in the ACTLR register
1100 may not be available in non-secure mode.
1101
Will Deacon9f050272010-09-14 09:51:43 +01001102config ARM_ERRATA_742230
1103 bool "ARM errata: DMB operation may be faulty"
1104 depends on CPU_V7 && SMP
1105 help
1106 This option enables the workaround for the 742230 Cortex-A9
1107 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1108 between two write operations may not ensure the correct visibility
1109 ordering of the two writes. This workaround sets a specific bit in
1110 the diagnostic register of the Cortex-A9 which causes the DMB
1111 instruction to behave as a DSB, ensuring the correct behaviour of
1112 the two writes.
1113
Will Deacona672e992010-09-14 09:53:02 +01001114config ARM_ERRATA_742231
1115 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1116 depends on CPU_V7 && SMP
1117 help
1118 This option enables the workaround for the 742231 Cortex-A9
1119 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1120 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1121 accessing some data located in the same cache line, may get corrupted
1122 data due to bad handling of the address hazard when the line gets
1123 replaced from one of the CPUs at the same time as another CPU is
1124 accessing it. This workaround sets specific bits in the diagnostic
1125 register of the Cortex-A9 which reduces the linefill issuing
1126 capabilities of the processor.
1127
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001128config PL310_ERRATA_588369
1129 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1130 depends on CACHE_L2X0 && ARCH_OMAP4
1131 help
1132 The PL310 L2 cache controller implements three types of Clean &
1133 Invalidate maintenance operations: by Physical Address
1134 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1135 They are architecturally defined to behave as the execution of a
1136 clean operation followed immediately by an invalidate operation,
1137 both performing to the same memory location. This functionality
1138 is not correctly implemented in PL310 as clean lines are not
1139 invalidated as a result of these operations. Note that this errata
1140 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001141
1142config ARM_ERRATA_720789
1143 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1144 depends on CPU_V7 && SMP
1145 help
1146 This option enables the workaround for the 720789 Cortex-A9 (prior to
1147 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1148 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1149 As a consequence of this erratum, some TLB entries which should be
1150 invalidated are not, resulting in an incoherency in the system page
1151 tables. The workaround changes the TLB flushing routines to invalidate
1152 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001153
1154config ARM_ERRATA_743622
1155 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1156 depends on CPU_V7
1157 help
1158 This option enables the workaround for the 743622 Cortex-A9
1159 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1160 optimisation in the Cortex-A9 Store Buffer may lead to data
1161 corruption. This workaround sets a specific bit in the diagnostic
1162 register of the Cortex-A9 which disables the Store Buffer
1163 optimisation, preventing the defect from occurring. This has no
1164 visible impact on the overall performance or power consumption of the
1165 processor.
1166
Linus Torvalds1da177e2005-04-16 15:20:36 -07001167endmenu
1168
1169source "arch/arm/common/Kconfig"
1170
Linus Torvalds1da177e2005-04-16 15:20:36 -07001171menu "Bus support"
1172
1173config ARM_AMBA
1174 bool
1175
1176config ISA
1177 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178 help
1179 Find out whether you have ISA slots on your motherboard. ISA is the
1180 name of a bus system, i.e. the way the CPU talks to the other stuff
1181 inside your box. Other bus systems are PCI, EISA, MicroChannel
1182 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1183 newer boards don't support it. If you have ISA, say Y, otherwise N.
1184
Russell King065909b2006-01-04 15:44:16 +00001185# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186config ISA_DMA
1187 bool
Russell King065909b2006-01-04 15:44:16 +00001188 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189
Russell King065909b2006-01-04 15:44:16 +00001190# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001191config ISA_DMA_API
1192 bool
Al Viro5cae8412005-05-04 05:39:22 +01001193
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001195 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 help
1197 Find out whether you have a PCI motherboard. PCI is the name of a
1198 bus system, i.e. the way the CPU talks to the other stuff inside
1199 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1200 VESA. If you have PCI, say Y, otherwise N.
1201
Anton Vorontsov52882172010-04-19 13:20:49 +01001202config PCI_DOMAINS
1203 bool
1204 depends on PCI
1205
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001206config PCI_NANOENGINE
1207 bool "BSE nanoEngine PCI support"
1208 depends on SA1100_NANOENGINE
1209 help
1210 Enable PCI on the BSE nanoEngine board.
1211
Matthew Wilcox36e23592007-07-10 10:54:40 -06001212config PCI_SYSCALL
1213 def_bool PCI
1214
Linus Torvalds1da177e2005-04-16 15:20:36 -07001215# Select the host bridge type
1216config PCI_HOST_VIA82C505
1217 bool
1218 depends on PCI && ARCH_SHARK
1219 default y
1220
Mike Rapoporta0113a92007-11-25 08:55:34 +01001221config PCI_HOST_ITE8152
1222 bool
1223 depends on PCI && MACH_ARMCORE
1224 default y
1225 select DMABOUNCE
1226
Linus Torvalds1da177e2005-04-16 15:20:36 -07001227source "drivers/pci/Kconfig"
1228
1229source "drivers/pcmcia/Kconfig"
1230
1231endmenu
1232
1233menu "Kernel Features"
1234
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001235source "kernel/time/Kconfig"
1236
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237config SMP
1238 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001239 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001240 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001241 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001242 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1243 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1244 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001245 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001246 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001247 help
1248 This enables support for systems with more than one CPU. If you have
1249 a system with only one CPU, like most personal computers, say N. If
1250 you have a system with more than one CPU, say Y.
1251
1252 If you say N here, the kernel will run on single and multiprocessor
1253 machines, but will use only one CPU of a multiprocessor machine. If
1254 you say Y here, the kernel will run on many, but not all, single
1255 processor machines. On a single processor machine, the kernel will
1256 run faster if you say N here.
1257
Adrian Bunk03502fa2008-02-03 15:50:21 +02001258 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001260 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261
1262 If you don't know what to do here, say N.
1263
Russell Kingf00ec482010-09-04 10:47:48 +01001264config SMP_ON_UP
1265 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1266 depends on EXPERIMENTAL
Dave Martined3768a2010-12-01 15:39:23 +01001267 depends on SMP && !XIP
Russell Kingf00ec482010-09-04 10:47:48 +01001268 default y
1269 help
1270 SMP kernels contain instructions which fail on non-SMP processors.
1271 Enabling this option allows the kernel to modify itself to make
1272 these instructions safe. Disabling it allows about 1K of space
1273 savings.
1274
1275 If you don't know what to do here, say Y.
1276
Russell Kinga8cbcd92009-05-16 11:51:14 +01001277config HAVE_ARM_SCU
1278 bool
1279 depends on SMP
1280 help
1281 This option enables support for the ARM system coherency unit
1282
Russell Kingf32f4ce2009-05-16 12:14:21 +01001283config HAVE_ARM_TWD
1284 bool
1285 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001286 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001287 help
1288 This options enables support for the ARM timer and watchdog unit
1289
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001290choice
1291 prompt "Memory split"
1292 default VMSPLIT_3G
1293 help
1294 Select the desired split between kernel and user memory.
1295
1296 If you are not absolutely sure what you are doing, leave this
1297 option alone!
1298
1299 config VMSPLIT_3G
1300 bool "3G/1G user/kernel split"
1301 config VMSPLIT_2G
1302 bool "2G/2G user/kernel split"
1303 config VMSPLIT_1G
1304 bool "1G/3G user/kernel split"
1305endchoice
1306
1307config PAGE_OFFSET
1308 hex
1309 default 0x40000000 if VMSPLIT_1G
1310 default 0x80000000 if VMSPLIT_2G
1311 default 0xC0000000
1312
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313config NR_CPUS
1314 int "Maximum number of CPUs (2-32)"
1315 range 2 32
1316 depends on SMP
1317 default "4"
1318
Russell Kinga054a812005-11-02 22:24:33 +00001319config HOTPLUG_CPU
1320 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1321 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001322 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001323 help
1324 Say Y here to experiment with turning CPUs off and on. CPUs
1325 can be controlled through /sys/devices/system/cpu.
1326
Russell King37ee16a2005-11-08 19:08:05 +00001327config LOCAL_TIMERS
1328 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001329 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001330 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001331 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001332 help
1333 Enable support for local timers on SMP platforms, rather then the
1334 legacy IPI broadcast method. Local timers allows the system
1335 accounting to be spread across the timer interval, preventing a
1336 "thundering herd" at every timer tick.
1337
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001338source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339
Russell Kingf8065812006-03-02 22:41:59 +00001340config HZ
1341 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001342 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001343 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001344 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001345 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001346 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001347 default 100
1348
Catalin Marinas16c79652009-07-24 12:33:02 +01001349config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001350 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001351 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001352 select AEABI
1353 select ARM_ASM_UNIFIED
1354 help
1355 By enabling this option, the kernel will be compiled in
1356 Thumb-2 mode. A compiler/assembler that understand the unified
1357 ARM-Thumb syntax is needed.
1358
1359 If unsure, say N.
1360
Catalin Marinas0becb082009-07-24 12:32:53 +01001361config ARM_ASM_UNIFIED
1362 bool
1363
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001364config AEABI
1365 bool "Use the ARM EABI to compile the kernel"
1366 help
1367 This option allows for the kernel to be compiled using the latest
1368 ARM ABI (aka EABI). This is only useful if you are using a user
1369 space environment that is also compiled with EABI.
1370
1371 Since there are major incompatibilities between the legacy ABI and
1372 EABI, especially with regard to structure member alignment, this
1373 option also changes the kernel syscall calling convention to
1374 disambiguate both ABIs and allow for backward compatibility support
1375 (selected with CONFIG_OABI_COMPAT).
1376
1377 To use this you need GCC version 4.0.0 or later.
1378
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001379config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001380 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001381 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001382 default y
1383 help
1384 This option preserves the old syscall interface along with the
1385 new (ARM EABI) one. It also provides a compatibility layer to
1386 intercept syscalls that have structure arguments which layout
1387 in memory differs between the legacy ABI and the new ARM EABI
1388 (only for non "thumb" binaries). This option adds a tiny
1389 overhead to all syscalls and produces a slightly larger kernel.
1390 If you know you'll be using only pure EABI user space then you
1391 can say N here. If this option is not selected and you attempt
1392 to execute a legacy ABI binary then the result will be
1393 UNPREDICTABLE (in fact it can be predicted that it won't work
1394 at all). If in doubt say Y.
1395
Mel Gormaneb335752009-05-13 17:34:48 +01001396config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001397 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001398
Russell King05944d72006-11-30 20:43:51 +00001399config ARCH_SPARSEMEM_ENABLE
1400 bool
1401
Russell King07a2f732008-10-01 21:39:58 +01001402config ARCH_SPARSEMEM_DEFAULT
1403 def_bool ARCH_SPARSEMEM_ENABLE
1404
Russell King05944d72006-11-30 20:43:51 +00001405config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001406 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001407
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001408config HIGHMEM
1409 bool "High Memory Support (EXPERIMENTAL)"
1410 depends on MMU && EXPERIMENTAL
1411 help
1412 The address space of ARM processors is only 4 Gigabytes large
1413 and it has to accommodate user address space, kernel address
1414 space as well as some memory mapped IO. That means that, if you
1415 have a large amount of physical memory and/or IO, not all of the
1416 memory can be "permanently mapped" by the kernel. The physical
1417 memory that is not permanently mapped is called "high memory".
1418
1419 Depending on the selected kernel/user memory split, minimum
1420 vmalloc space and actual amount of RAM, you may not need this
1421 option which should result in a slightly faster kernel.
1422
1423 If unsure, say n.
1424
Russell King65cec8e2009-08-17 20:02:06 +01001425config HIGHPTE
1426 bool "Allocate 2nd-level pagetables from highmem"
1427 depends on HIGHMEM
1428 depends on !OUTER_CACHE
1429
Jamie Iles1b8873a2010-02-02 20:25:44 +01001430config HW_PERF_EVENTS
1431 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001432 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001433 default y
1434 help
1435 Enable hardware performance counter support for perf events. If
1436 disabled, perf events will use software events only.
1437
eric miao354e6f72010-06-25 09:46:09 +01001438config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001439 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001440 help
1441 This enables support for sparse irqs. This is useful in general
1442 as most CPUs have a fairly sparse array of IRQ vectors, which
1443 the irq_desc then maps directly on to. Systems with a high
1444 number of off-chip IRQs will want to treat this as
1445 experimental until they have been independently verified.
1446
Dave Hansen3f22ab22005-06-23 00:07:43 -07001447source "mm/Kconfig"
1448
Magnus Dammc1b2d972010-07-05 10:00:11 +01001449config FORCE_MAX_ZONEORDER
1450 int "Maximum zone order" if ARCH_SHMOBILE
1451 range 11 64 if ARCH_SHMOBILE
1452 default "9" if SA1111
1453 default "11"
1454 help
1455 The kernel memory allocator divides physically contiguous memory
1456 blocks into "zones", where each zone is a power of two number of
1457 pages. This option selects the largest power of two that the kernel
1458 keeps in the memory allocator. If you need to allocate very large
1459 blocks of physically contiguous memory, then you may need to
1460 increase this value.
1461
1462 This config option is actually maximum order plus one. For example,
1463 a value of 11 means that the largest free memory block is 2^10 pages.
1464
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465config LEDS
1466 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001467 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001468 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1470 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001471 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001472 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001473 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 help
1475 If you say Y here, the LEDs on your machine will be used
1476 to provide useful information about your current system status.
1477
1478 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1479 be able to select which LEDs are active using the options below. If
1480 you are compiling a kernel for the EBSA-110 or the LART however, the
1481 red LED will simply flash regularly to indicate that the system is
1482 still functional. It is safe to say Y here if you have a CATS
1483 system, but the driver will do nothing.
1484
1485config LEDS_TIMER
1486 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001487 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1488 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001490 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 default y if ARCH_EBSA110
1492 help
1493 If you say Y here, one of the system LEDs (the green one on the
1494 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1495 will flash regularly to indicate that the system is still
1496 operational. This is mainly useful to kernel hackers who are
1497 debugging unstable kernels.
1498
1499 The LART uses the same LED for both Timer LED and CPU usage LED
1500 functions. You may choose to use both, but the Timer LED function
1501 will overrule the CPU usage LED.
1502
1503config LEDS_CPU
1504 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001505 !ARCH_OMAP) \
1506 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1507 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508 depends on LEDS
1509 help
1510 If you say Y here, the red LED will be used to give a good real
1511 time indication of CPU usage, by lighting whenever the idle task
1512 is not currently executing.
1513
1514 The LART uses the same LED for both Timer LED and CPU usage LED
1515 functions. You may choose to use both, but the Timer LED function
1516 will overrule the CPU usage LED.
1517
1518config ALIGNMENT_TRAP
1519 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001520 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001522 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001524 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1526 address divisible by 4. On 32-bit ARM processors, these non-aligned
1527 fetch/store instructions will be emulated in software if you say
1528 here, which has a severe performance impact. This is necessary for
1529 correct operation of some network protocols. With an IP-only
1530 configuration it is safe to say N, otherwise say Y.
1531
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001532config UACCESS_WITH_MEMCPY
1533 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1534 depends on MMU && EXPERIMENTAL
1535 default y if CPU_FEROCEON
1536 help
1537 Implement faster copy_to_user and clear_user methods for CPU
1538 cores where a 8-word STM instruction give significantly higher
1539 memory write throughput than a sequence of individual 32bit stores.
1540
1541 A possible side effect is a slight increase in scheduling latency
1542 between threads sharing the same address space if they invoke
1543 such copy operations with large buffers.
1544
1545 However, if the CPU data cache is using a write-allocate mode,
1546 this option is unlikely to provide any performance gain.
1547
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001548config SECCOMP
1549 bool
1550 prompt "Enable seccomp to safely compute untrusted bytecode"
1551 ---help---
1552 This kernel feature is useful for number crunching applications
1553 that may need to compute untrusted bytecode during their
1554 execution. By using pipes or other transports made available to
1555 the process as file descriptors supporting the read/write
1556 syscalls, it's possible to isolate those applications in
1557 their own address space using seccomp. Once seccomp is
1558 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1559 and the task is only allowed to execute a few safe syscalls
1560 defined by each seccomp mode.
1561
Nicolas Pitrec743f382010-05-24 23:55:42 -04001562config CC_STACKPROTECTOR
1563 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001564 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001565 help
1566 This option turns on the -fstack-protector GCC feature. This
1567 feature puts, at the beginning of functions, a canary value on
1568 the stack just before the return address, and validates
1569 the value just before actually returning. Stack based buffer
1570 overflows (that need to overwrite this return address) now also
1571 overwrite the canary, which gets detected and the attack is then
1572 neutralized via a kernel panic.
1573 This feature requires gcc version 4.2 or above.
1574
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001575config DEPRECATED_PARAM_STRUCT
1576 bool "Provide old way to pass kernel parameters"
1577 help
1578 This was deprecated in 2001 and announced to live on for 5 years.
1579 Some old boot loaders still use this way.
1580
Linus Torvalds1da177e2005-04-16 15:20:36 -07001581endmenu
1582
1583menu "Boot options"
1584
1585# Compressed boot loader in ROM. Yes, we really want to ask about
1586# TEXT and BSS so we preserve their values in the config files.
1587config ZBOOT_ROM_TEXT
1588 hex "Compressed ROM boot loader base address"
1589 default "0"
1590 help
1591 The physical address at which the ROM-able zImage is to be
1592 placed in the target. Platforms which normally make use of
1593 ROM-able zImage formats normally set this to a suitable
1594 value in their defconfig file.
1595
1596 If ZBOOT_ROM is not enabled, this has no effect.
1597
1598config ZBOOT_ROM_BSS
1599 hex "Compressed ROM boot loader BSS address"
1600 default "0"
1601 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001602 The base address of an area of read/write memory in the target
1603 for the ROM-able zImage which must be available while the
1604 decompressor is running. It must be large enough to hold the
1605 entire decompressed kernel plus an additional 128 KiB.
1606 Platforms which normally make use of ROM-able zImage formats
1607 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608
1609 If ZBOOT_ROM is not enabled, this has no effect.
1610
1611config ZBOOT_ROM
1612 bool "Compressed boot loader in ROM/flash"
1613 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1614 help
1615 Say Y here if you intend to execute your compressed kernel image
1616 (zImage) directly from ROM or flash. If unsure, say N.
1617
1618config CMDLINE
1619 string "Default kernel command string"
1620 default ""
1621 help
1622 On some architectures (EBSA110 and CATS), there is currently no way
1623 for the boot loader to pass arguments to the kernel. For these
1624 architectures, you should supply some command-line options at build
1625 time by entering them here. As a minimum, you should specify the
1626 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1627
Alexander Holler92d20402010-02-16 19:04:53 +01001628config CMDLINE_FORCE
1629 bool "Always use the default kernel command string"
1630 depends on CMDLINE != ""
1631 help
1632 Always use the default kernel command string, even if the boot
1633 loader passes other arguments to the kernel.
1634 This is useful if you cannot or don't want to change the
1635 command-line options your boot loader passes to the kernel.
1636
1637 If unsure, say N.
1638
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639config XIP_KERNEL
1640 bool "Kernel Execute-In-Place from ROM"
1641 depends on !ZBOOT_ROM
1642 help
1643 Execute-In-Place allows the kernel to run from non-volatile storage
1644 directly addressable by the CPU, such as NOR flash. This saves RAM
1645 space since the text section of the kernel is not loaded from flash
1646 to RAM. Read-write sections, such as the data section and stack,
1647 are still copied to RAM. The XIP kernel is not compressed since
1648 it has to run directly from flash, so it will take more space to
1649 store it. The flash address used to link the kernel object files,
1650 and for storing it, is configuration dependent. Therefore, if you
1651 say Y here, you must know the proper physical address where to
1652 store the kernel image depending on your own flash memory usage.
1653
1654 Also note that the make target becomes "make xipImage" rather than
1655 "make zImage" or "make Image". The final kernel binary to put in
1656 ROM memory will be arch/arm/boot/xipImage.
1657
1658 If unsure, say N.
1659
1660config XIP_PHYS_ADDR
1661 hex "XIP Kernel Physical Location"
1662 depends on XIP_KERNEL
1663 default "0x00080000"
1664 help
1665 This is the physical address in your flash memory the kernel will
1666 be linked for and stored to. This address is dependent on your
1667 own flash usage.
1668
Richard Purdiec587e4a2007-02-06 21:29:00 +01001669config KEXEC
1670 bool "Kexec system call (EXPERIMENTAL)"
1671 depends on EXPERIMENTAL
1672 help
1673 kexec is a system call that implements the ability to shutdown your
1674 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001675 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001676 you can start any kernel with it, not just Linux.
1677
1678 It is an ongoing process to be certain the hardware in a machine
1679 is properly shutdown, so do not be surprised if this code does not
1680 initially work for you. It may help to enable device hotplugging
1681 support.
1682
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001683config ATAGS_PROC
1684 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001685 depends on KEXEC
1686 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001687 help
1688 Should the atags used to boot the kernel be exported in an "atags"
1689 file in procfs. Useful with kexec.
1690
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001691config CRASH_DUMP
1692 bool "Build kdump crash kernel (EXPERIMENTAL)"
1693 depends on EXPERIMENTAL
1694 help
1695 Generate crash dump after being started by kexec. This should
1696 be normally only set in special crash dump kernels which are
1697 loaded in the main kernel with kexec-tools into a specially
1698 reserved region and then later executed after a crash by
1699 kdump/kexec. The crash dump kernel must be compiled to a
1700 memory address not used by the main kernel
1701
1702 For more details see Documentation/kdump/kdump.txt
1703
Eric Miaoe69edc792010-07-05 15:56:50 +02001704config AUTO_ZRELADDR
1705 bool "Auto calculation of the decompressed kernel image address"
1706 depends on !ZBOOT_ROM && !ARCH_U300
1707 help
1708 ZRELADDR is the physical address where the decompressed kernel
1709 image will be placed. If AUTO_ZRELADDR is selected, the address
1710 will be determined at run-time by masking the current IP with
1711 0xf8000000. This assumes the zImage being placed in the first 128MB
1712 from start of memory.
1713
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714endmenu
1715
Russell Kingac9d7ef2008-08-18 17:26:00 +01001716menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717
Ben Dooks89c52ed2009-07-30 23:23:24 +01001718if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719
1720source "drivers/cpufreq/Kconfig"
1721
Yong Shen64f102b2010-10-21 21:18:59 +08001722config CPU_FREQ_IMX
1723 tristate "CPUfreq driver for i.MX CPUs"
1724 depends on ARCH_MXC && CPU_FREQ
1725 help
1726 This enables the CPUfreq driver for i.MX CPUs.
1727
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728config CPU_FREQ_SA1100
1729 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730
1731config CPU_FREQ_SA1110
1732 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733
1734config CPU_FREQ_INTEGRATOR
1735 tristate "CPUfreq driver for ARM Integrator CPUs"
1736 depends on ARCH_INTEGRATOR && CPU_FREQ
1737 default y
1738 help
1739 This enables the CPUfreq driver for ARM Integrator CPUs.
1740
1741 For details, take a look at <file:Documentation/cpu-freq>.
1742
1743 If in doubt, say Y.
1744
Russell King9e2697f2007-12-14 13:30:14 +00001745config CPU_FREQ_PXA
1746 bool
1747 depends on CPU_FREQ && ARCH_PXA && PXA25x
1748 default y
1749 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1750
Mark Brownb3748dd2009-06-15 11:23:20 +01001751config CPU_FREQ_S3C64XX
1752 bool "CPUfreq support for Samsung S3C64XX CPUs"
1753 depends on CPU_FREQ && CPU_S3C6410
1754
Ben Dooks9d56c022009-07-30 23:23:25 +01001755config CPU_FREQ_S3C
1756 bool
1757 help
1758 Internal configuration node for common cpufreq on Samsung SoC
1759
1760config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001761 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001762 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1763 select CPU_FREQ_S3C
1764 help
1765 This enables the CPUfreq driver for the Samsung S3C24XX family
1766 of CPUs.
1767
1768 For details, take a look at <file:Documentation/cpu-freq>.
1769
1770 If in doubt, say N.
1771
1772config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001773 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001774 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1775 help
1776 Compile in support for changing the PLL frequency from the
1777 S3C24XX series CPUfreq driver. The PLL takes time to settle
1778 after a frequency change, so by default it is not enabled.
1779
1780 This also means that the PLL tables for the selected CPU(s) will
1781 be built which may increase the size of the kernel image.
1782
1783config CPU_FREQ_S3C24XX_DEBUG
1784 bool "Debug CPUfreq Samsung driver core"
1785 depends on CPU_FREQ_S3C24XX
1786 help
1787 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1788
1789config CPU_FREQ_S3C24XX_IODEBUG
1790 bool "Debug CPUfreq Samsung driver IO timing"
1791 depends on CPU_FREQ_S3C24XX
1792 help
1793 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1794
Ben Dookse6d197a2009-07-30 23:23:42 +01001795config CPU_FREQ_S3C24XX_DEBUGFS
1796 bool "Export debugfs for CPUFreq"
1797 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1798 help
1799 Export status information via debugfs.
1800
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801endif
1802
Russell Kingac9d7ef2008-08-18 17:26:00 +01001803source "drivers/cpuidle/Kconfig"
1804
1805endmenu
1806
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807menu "Floating point emulation"
1808
1809comment "At least one emulation must be selected"
1810
1811config FPE_NWFPE
1812 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001813 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814 ---help---
1815 Say Y to include the NWFPE floating point emulator in the kernel.
1816 This is necessary to run most binaries. Linux does not currently
1817 support floating point hardware so you need to say Y here even if
1818 your machine has an FPA or floating point co-processor podule.
1819
1820 You may say N here if you are going to load the Acorn FPEmulator
1821 early in the bootup.
1822
1823config FPE_NWFPE_XP
1824 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001825 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826 help
1827 Say Y to include 80-bit support in the kernel floating-point
1828 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1829 Note that gcc does not generate 80-bit operations by default,
1830 so in most cases this option only enlarges the size of the
1831 floating point emulator without any good reason.
1832
1833 You almost surely want to say N here.
1834
1835config FPE_FASTFPE
1836 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001837 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 ---help---
1839 Say Y here to include the FAST floating point emulator in the kernel.
1840 This is an experimental much faster emulator which now also has full
1841 precision for the mantissa. It does not support any exceptions.
1842 It is very simple, and approximately 3-6 times faster than NWFPE.
1843
1844 It should be sufficient for most programs. It may be not suitable
1845 for scientific calculations, but you have to check this for yourself.
1846 If you do not feel you need a faster FP emulation you should better
1847 choose NWFPE.
1848
1849config VFP
1850 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001851 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852 help
1853 Say Y to include VFP support code in the kernel. This is needed
1854 if your hardware includes a VFP unit.
1855
1856 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1857 release notes and additional status information.
1858
1859 Say N if your target does not have VFP hardware.
1860
Catalin Marinas25ebee02007-09-25 15:22:24 +01001861config VFPv3
1862 bool
1863 depends on VFP
1864 default y if CPU_V7
1865
Catalin Marinasb5872db2008-01-10 19:16:17 +01001866config NEON
1867 bool "Advanced SIMD (NEON) Extension support"
1868 depends on VFPv3 && CPU_V7
1869 help
1870 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1871 Extension.
1872
Linus Torvalds1da177e2005-04-16 15:20:36 -07001873endmenu
1874
1875menu "Userspace binary formats"
1876
1877source "fs/Kconfig.binfmt"
1878
1879config ARTHUR
1880 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001881 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882 help
1883 Say Y here to include the kernel code necessary if you want to run
1884 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1885 experimental; if this sounds frightening, say N and sleep in peace.
1886 You can also say M here to compile this support as a module (which
1887 will be called arthur).
1888
1889endmenu
1890
1891menu "Power management options"
1892
Russell Kingeceab4a2005-11-15 11:31:41 +00001893source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894
Johannes Bergf4cb5702007-12-08 02:14:00 +01001895config ARCH_SUSPEND_POSSIBLE
1896 def_bool y
1897
Linus Torvalds1da177e2005-04-16 15:20:36 -07001898endmenu
1899
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001900source "net/Kconfig"
1901
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001902source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001903
1904source "fs/Kconfig"
1905
Linus Torvalds1da177e2005-04-16 15:20:36 -07001906source "arch/arm/Kconfig.debug"
1907
1908source "security/Kconfig"
1909
1910source "crypto/Kconfig"
1911
1912source "lib/Kconfig"