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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
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800367config ARCH_MXS
368 bool "Freescale MXS-based"
369 select GENERIC_CLOCKEVENTS
370 select ARCH_REQUIRE_GPIOLIB
371 select COMMON_CLKDEV
372 help
373 Support for Freescale MXS-based family of processors
374
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100375config ARCH_STMP3XXX
376 bool "Freescale STMP3xxx"
377 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100378 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100379 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100380 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100381 select USB_ARCH_HAS_EHCI
382 help
383 Support for systems based on the Freescale 3xxx CPUs.
384
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100385config ARCH_NETX
386 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000387 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100388 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100389 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000390 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100391 This enables support for systems based on the Hilscher NetX Soc
392
393config ARCH_H720X
394 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100396 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000397 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100398 help
399 This enables support for systems based on the Hynix HMS720x
400
Russell King3b938be2007-05-12 11:25:44 +0100401config ARCH_IOP13XX
402 bool "IOP13xx-based"
403 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100405 select PLAT_IOP
406 select PCI
407 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100408 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100409 help
410 Support for Intel's IOP13XX (XScale) family of processors.
411
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100412config ARCH_IOP32X
413 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100414 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100416 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100417 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100418 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000419 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100420 Support for Intel's 80219 and IOP32X (XScale) family of
421 processors.
422
423config ARCH_IOP33X
424 bool "IOP33x-based"
425 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000426 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100427 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100428 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100429 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100430 help
431 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Russell King3b938be2007-05-12 11:25:44 +0100433config ARCH_IXP23XX
434 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100435 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100437 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000438 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100439 help
Russell King3b938be2007-05-12 11:25:44 +0100440 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
442config ARCH_IXP2000
443 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100444 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000445 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100446 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000447 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000448 help
449 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450
Russell King3b938be2007-05-12 11:25:44 +0100451config ARCH_IXP4XX
452 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100453 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000454 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100455 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100456 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000457 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100458 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100459 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100460 help
Russell King3b938be2007-05-12 11:25:44 +0100461 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100462
Saeed Bisharaedabd382009-08-06 15:12:43 +0300463config ARCH_DOVE
464 bool "Marvell Dove"
465 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300466 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300467 select GENERIC_CLOCKEVENTS
468 select PLAT_ORION
469 help
470 Support for the Marvell Dove SoC 88AP510
471
Saeed Bishara651c74c2008-06-22 22:45:06 +0200472config ARCH_KIRKWOOD
473 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000474 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200475 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700476 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200477 select GENERIC_CLOCKEVENTS
478 select PLAT_ORION
479 help
480 Support for the following Marvell Kirkwood series SoCs:
481 88F6180, 88F6192 and 88F6281.
482
Russell King788c9702009-04-26 14:21:59 +0100483config ARCH_LOKI
484 bool "Marvell Loki (88RC8480)"
485 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100486 select GENERIC_CLOCKEVENTS
487 select PLAT_ORION
488 help
489 Support for the Marvell Loki (88RC8480) SoC.
490
Kevin Wells40805942010-07-27 08:49:04 -0700491config ARCH_LPC32XX
492 bool "NXP LPC32XX"
493 select CPU_ARM926T
494 select ARCH_REQUIRE_GPIOLIB
495 select HAVE_IDE
496 select ARM_AMBA
497 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100498 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700499 select GENERIC_TIME
500 select GENERIC_CLOCKEVENTS
501 help
502 Support for the NXP LPC32XX family of processors
503
Russell King788c9702009-04-26 14:21:59 +0100504config ARCH_MV78XX0
505 bool "Marvell MV78xx0"
506 select CPU_FEROCEON
507 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700508 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100509 select GENERIC_CLOCKEVENTS
510 select PLAT_ORION
511 help
512 Support for the following Marvell MV78xx0 series SoCs:
513 MV781x0, MV782x0.
514
515config ARCH_ORION5X
516 bool "Marvell Orion"
517 depends on MMU
518 select CPU_FEROCEON
519 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700520 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100521 select GENERIC_CLOCKEVENTS
522 select PLAT_ORION
523 help
524 Support for the following Marvell Orion 5x series SoCs:
525 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
526 Orion-2 (5281), Orion-1-90 (6183).
527
528config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500529 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100530 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100531 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100532 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100533 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000534 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100535 select TICK_ONESHOT
536 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400537 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100538 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500539 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100540
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100541config ARCH_KS8695
542 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000543 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100544 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000545 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100546 help
547 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
548 System-on-Chip devices.
549
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100550config ARCH_NS9XXX
551 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000552 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100553 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100554 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700555 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100556 help
557 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
558 System.
559
560 <http://www.digi.com/products/microprocessors/index.jsp>
561
Russell King788c9702009-04-26 14:21:59 +0100562config ARCH_W90X900
563 bool "Nuvoton W90X900 CPU"
564 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100565 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100566 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100567 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200568 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100569 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570 At present, the w90x900 has been renamed nuc900, regarding
571 the ARM series product line, you can login the following
572 link address to know more.
573
574 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400576
wanzongshuna62e9032009-12-31 15:06:05 +0100577config ARCH_NUC93X
578 bool "Nuvoton NUC93X CPU"
579 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100580 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100581 help
582 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583 low-power and high performance MPEG-4/JPEG multimedia controller chip.
584
Erik Gillingc5f80062010-01-21 16:53:02 -0800585config ARCH_TEGRA
586 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000587 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800588 select GENERIC_TIME
589 select GENERIC_CLOCKEVENTS
590 select GENERIC_GPIO
591 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000592 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800593 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700594 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800595 help
596 This enables support for NVIDIA Tegra based systems (Tegra APX,
597 Tegra 6xx and Tegra 2 series).
598
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100599config ARCH_PNX4008
600 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000601 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000603 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100604 help
605 This enables support for Philips PNX4008 mobile platform.
606
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700608 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100609 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500610 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100611 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700613 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100614 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000615 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000616 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800617 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800618 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000619 help
eric miao2c8086a2007-09-11 19:13:17 -0700620 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_MSM
623 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500624 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800625 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700626 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800627 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800628 Support for Qualcomm MSM/QSD based systems. This runs on the
629 apps processor of the MSM/QSD and depends on a shared memory
630 interface to the modem processor which runs the baseband
631 stack and controls some vital subsystems
632 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800633
Magnus Dammc793c1b2010-02-05 11:14:49 +0000634config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900635 bool "Renesas SH-Mobile / R-Mobile"
636 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900637 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900638 select GENERIC_CLOCKEVENTS
639 select NO_IOPORT
640 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000641 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900643 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000644
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645config ARCH_RPC
646 bool "RiscPC"
647 select ARCH_ACORN
648 select FIQ
649 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100650 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100651 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000652 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000653 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100654 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000655 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 help
657 On the Acorn Risc-PC, Linux can support the internal IDE disk and
658 CD-ROM interface, serial and parallel port, and the floppy drive.
659
660config ARCH_SA1100
661 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000662 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100663 select ISA
Russell King05944d72006-11-30 20:43:51 +0000664 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500665 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100666 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000667 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100668 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700669 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000670 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100671 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700672 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000673 help
674 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675
676config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900677 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800678 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100679 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700680 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000681 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900682 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 help
684 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
685 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000686 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
Ben Dooks63b1f512010-04-30 16:32:26 +0900688 Note, the S3C2416 and the S3C2450 are so close that they even share
689 the same SoC ID code. This means that there is no seperate machine
690 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
691
Ben Dooksa08ab632008-10-21 14:06:39 +0100692config ARCH_S3C64XX
693 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000694 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900695 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900696 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100697 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900698 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000699 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100700 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900701 select ARCH_REQUIRE_GPIOLIB
702 select SAMSUNG_CLKSRC
703 select SAMSUNG_IRQ_VIC_TIMER
704 select SAMSUNG_IRQ_UART
705 select S3C_GPIO_TRACK
706 select S3C_GPIO_PULL_UPDOWN
707 select S3C_GPIO_CFG_S3C24XX
708 select S3C_GPIO_CFG_S3C64XX
709 select S3C_DEV_NAND
710 select USB_ARCH_HAS_OHCI
711 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900712 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900713 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100714 help
715 Samsung S3C64XX series based systems
716
Kukjin Kim49b7a492010-09-07 15:47:18 +0900717config ARCH_S5P64X0
718 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900719 select CPU_V6
720 select GENERIC_GPIO
721 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900722 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900723 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900724 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900725 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900726 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900727 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
728 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900729
Kukjin Kim550db7f2010-01-29 10:19:26 +0900730config ARCH_S5P6442
731 bool "Samsung S5P6442"
732 select CPU_V6
733 select GENERIC_GPIO
734 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900735 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900737 help
738 Samsung S5P6442 CPU based systems
739
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200740config ARCH_S5PC100
741 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900742 select GENERIC_GPIO
743 select HAVE_CLK
744 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100745 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900746 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900748 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900749 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900750 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200751 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900752
Kukjin Kim170f4e42010-02-24 16:40:44 +0900753config ARCH_S5PV210
754 bool "Samsung S5PV210/S5PC110"
755 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900756 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900757 select GENERIC_GPIO
758 select HAVE_CLK
759 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900760 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900761 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900762 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900763 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900764 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900765 help
766 Samsung S5PV210/S5PC110 series based systems
767
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900768config ARCH_S5PV310
769 bool "Samsung S5PV310/S5PC210"
770 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900771 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900772 select GENERIC_GPIO
773 select HAVE_CLK
774 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900775 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900776 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900777 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900778 help
779 Samsung S5PV310 series based systems
780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781config ARCH_SHARK
782 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000783 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100784 select ISA
785 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100786 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100787 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000788 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000789 help
790 Support for the StrongARM based Digital DNARD machine, also known
791 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700792
Hans J. Koch83ef3332010-09-17 18:13:56 +0200793config ARCH_TCC_926
794 bool "Telechips TCC ARM926-based systems"
795 select CPU_ARM926T
796 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100797 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200798 select GENERIC_CLOCKEVENTS
799 help
800 Support for Telechips TCC ARM926-based systems.
801
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802config ARCH_LH7A40X
803 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000804 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100805 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000806 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 help
808 Say Y here for systems based on one of the Sharp LH7A40X
809 System on a Chip processors. These CPUs include an ARM922T
810 core with a wide array of integrated devices for
811 hand-held and low-power applications.
812
Linus Walleijd98aac72009-04-27 10:21:46 +0100813config ARCH_U300
814 bool "ST-Ericsson U300 Series"
815 depends on MMU
816 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000817 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100818 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select ARM_AMBA
820 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100821 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100822 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100823 select GENERIC_GPIO
824 help
825 Support for ST-Ericsson U300 series mobile platforms.
826
Russell Kingccf50e22010-03-15 19:03:06 +0000827config ARCH_U8500
828 bool "ST-Ericsson U8500 Series"
829 select CPU_V7
830 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000831 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100832 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100833 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100834 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000835 help
836 Support for ST-Ericsson's Ux500 architecture
837
838config ARCH_NOMADIK
839 bool "STMicroelectronics Nomadik"
840 select ARM_AMBA
841 select ARM_VIC
842 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100843 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000844 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000845 select ARCH_REQUIRE_GPIOLIB
846 help
847 Support for the Nomadik platform by ST-Ericsson
848
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100849config ARCH_DAVINCI
850 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100851 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700852 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100853 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700854 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100855 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700856 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530857 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100858 help
859 Support for TI's DaVinci platform.
860
Russell King3b938be2007-05-12 11:25:44 +0100861config ARCH_OMAP
862 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700863 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700864 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100865 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700866 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000867 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800868 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100869 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200870 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100871
viresh kumarcee37e52010-04-01 12:31:05 +0100872config PLAT_SPEAR
873 bool "ST SPEAr"
874 select ARM_AMBA
875 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100876 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100877 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100878 select HAVE_CLK
879 help
880 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
881
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882endchoice
883
Russell Kingccf50e22010-03-15 19:03:06 +0000884#
885# This is sorted alphabetically by mach-* pathname. However, plat-*
886# Kconfigs may be included either alphabetically (according to the
887# plat- suffix) or along side the corresponding mach-* source.
888#
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-aaec2000/Kconfig"
890
891source "arch/arm/mach-at91/Kconfig"
892
893source "arch/arm/mach-bcmring/Kconfig"
894
Linus Torvalds1da177e2005-04-16 15:20:36 -0700895source "arch/arm/mach-clps711x/Kconfig"
896
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300897source "arch/arm/mach-cns3xxx/Kconfig"
898
Russell King95b8f202010-01-14 11:43:54 +0000899source "arch/arm/mach-davinci/Kconfig"
900
901source "arch/arm/mach-dove/Kconfig"
902
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000903source "arch/arm/mach-ep93xx/Kconfig"
904
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905source "arch/arm/mach-footbridge/Kconfig"
906
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200907source "arch/arm/mach-gemini/Kconfig"
908
Russell King95b8f202010-01-14 11:43:54 +0000909source "arch/arm/mach-h720x/Kconfig"
910
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911source "arch/arm/mach-integrator/Kconfig"
912
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100913source "arch/arm/mach-iop32x/Kconfig"
914
915source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916
Dan Williams285f5fa2006-12-07 02:59:39 +0100917source "arch/arm/mach-iop13xx/Kconfig"
918
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919source "arch/arm/mach-ixp4xx/Kconfig"
920
921source "arch/arm/mach-ixp2000/Kconfig"
922
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100923source "arch/arm/mach-ixp23xx/Kconfig"
924
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-kirkwood/Kconfig"
926
927source "arch/arm/mach-ks8695/Kconfig"
928
929source "arch/arm/mach-lh7a40x/Kconfig"
930
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200931source "arch/arm/mach-loki/Kconfig"
932
Kevin Wells40805942010-07-27 08:49:04 -0700933source "arch/arm/mach-lpc32xx/Kconfig"
934
Russell King95b8f202010-01-14 11:43:54 +0000935source "arch/arm/mach-msm/Kconfig"
936
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200937source "arch/arm/mach-mv78xx0/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800941source "arch/arm/mach-mxs/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800944
Russell King95b8f202010-01-14 11:43:54 +0000945source "arch/arm/mach-nomadik/Kconfig"
946source "arch/arm/plat-nomadik/Kconfig"
947
948source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Russell Kingd91a89102010-02-04 18:13:17 +0000950source "arch/arm/mach-nuc93x/Kconfig"
951
Tony Lindgrend48af152005-07-10 19:58:17 +0100952source "arch/arm/plat-omap/Kconfig"
953
954source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Tony Lindgren1dbae812005-11-10 14:26:51 +0000956source "arch/arm/mach-omap2/Kconfig"
957
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400958source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-pxa/Kconfig"
961source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Russell King95b8f202010-01-14 11:43:54 +0000963source "arch/arm/mach-mmp/Kconfig"
964
965source "arch/arm/mach-realview/Kconfig"
966
967source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300968
Ben Dookscf383672009-11-10 00:14:58 +0000969source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100970source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900971source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100972
viresh kumarcee37e52010-04-01 12:31:05 +0100973source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100974
Hans J. Koch83ef3332010-09-17 18:13:56 +0200975source "arch/arm/plat-tcc/Kconfig"
976
Ben Dooksa21765a2007-02-11 18:31:01 +0100977if ARCH_S3C2410
978source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100980source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900981source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100982source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100983source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100984endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985
Ben Dooksa08ab632008-10-21 14:06:39 +0100986if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900987source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100988endif
989
Kukjin Kim49b7a492010-09-07 15:47:18 +0900990source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900991
Kukjin Kim550db7f2010-01-29 10:19:26 +0900992source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100993
Byungho Min5a7652f2009-06-23 21:39:42 +0900994source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900995
Kukjin Kim170f4e42010-02-24 16:40:44 +0900996source "arch/arm/mach-s5pv210/Kconfig"
997
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900998source "arch/arm/mach-s5pv310/Kconfig"
999
Russell King882d01f2010-03-02 23:40:15 +00001000source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Russell King882d01f2010-03-02 23:40:15 +00001002source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -08001003
Erik Gillingc5f80062010-01-21 16:53:02 -08001004source "arch/arm/mach-tegra/Kconfig"
1005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001007
Russell King95b8f202010-01-14 11:43:54 +00001008source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
1010source "arch/arm/mach-versatile/Kconfig"
1011
Russell Kingceade892010-02-11 21:44:53 +00001012source "arch/arm/mach-vexpress/Kconfig"
1013
wanzongshun7ec80dd2008-12-03 03:55:38 +01001014source "arch/arm/mach-w90x900/Kconfig"
1015
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016# Definitions to make life easier
1017config ARCH_ACORN
1018 bool
1019
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001020config PLAT_IOP
1021 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001022 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001023 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001024
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001025config PLAT_ORION
1026 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001027 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001028
Eric Miaobd5ce432009-01-20 12:06:01 +08001029config PLAT_PXA
1030 bool
1031
Russell Kingf4b8b312010-01-14 12:48:06 +00001032config PLAT_VERSATILE
1033 bool
1034
Russell Kinge3887712010-01-14 13:30:16 +00001035config ARM_TIMER_SP804
1036 bool
1037
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038source arch/arm/mm/Kconfig
1039
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001040config IWMMXT
1041 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001042 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1043 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001044 help
1045 Enable support for iWMMXt context switching at run time if
1046 running on a CPU that supports it.
1047
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1049config XSCALE_PMU
1050 bool
1051 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1052 default y
1053
Jamie Iles0f4f0672010-02-02 20:23:15 +01001054config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001055 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1056 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001057 default y
1058 bool
1059
eric miao52108642010-12-13 09:42:34 +01001060config MULTI_IRQ_HANDLER
1061 bool
1062 help
1063 Allow each machine to specify it's own IRQ handler at run time.
1064
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001065if !MMU
1066source "arch/arm/Kconfig-nommu"
1067endif
1068
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001069config ARM_ERRATA_411920
1070 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001071 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001072 help
1073 Invalidation of the Instruction Cache operation can
1074 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1075 It does not affect the MPCore. This option enables the ARM Ltd.
1076 recommended workaround.
1077
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001078config ARM_ERRATA_430973
1079 bool "ARM errata: Stale prediction on replaced interworking branch"
1080 depends on CPU_V7
1081 help
1082 This option enables the workaround for the 430973 Cortex-A8
1083 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1084 interworking branch is replaced with another code sequence at the
1085 same virtual address, whether due to self-modifying code or virtual
1086 to physical address re-mapping, Cortex-A8 does not recover from the
1087 stale interworking branch prediction. This results in Cortex-A8
1088 executing the new code sequence in the incorrect ARM or Thumb state.
1089 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1090 and also flushes the branch target cache at every context switch.
1091 Note that setting specific bits in the ACTLR register may not be
1092 available in non-secure mode.
1093
Catalin Marinas855c5512009-04-30 17:06:15 +01001094config ARM_ERRATA_458693
1095 bool "ARM errata: Processor deadlock when a false hazard is created"
1096 depends on CPU_V7
1097 help
1098 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1099 erratum. For very specific sequences of memory operations, it is
1100 possible for a hazard condition intended for a cache line to instead
1101 be incorrectly associated with a different cache line. This false
1102 hazard might then cause a processor deadlock. The workaround enables
1103 the L1 caching of the NEON accesses and disables the PLD instruction
1104 in the ACTLR register. Note that setting specific bits in the ACTLR
1105 register may not be available in non-secure mode.
1106
Catalin Marinas0516e462009-04-30 17:06:20 +01001107config ARM_ERRATA_460075
1108 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1109 depends on CPU_V7
1110 help
1111 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1112 erratum. Any asynchronous access to the L2 cache may encounter a
1113 situation in which recent store transactions to the L2 cache are lost
1114 and overwritten with stale memory contents from external memory. The
1115 workaround disables the write-allocate mode for the L2 cache via the
1116 ACTLR register. Note that setting specific bits in the ACTLR register
1117 may not be available in non-secure mode.
1118
Will Deacon9f050272010-09-14 09:51:43 +01001119config ARM_ERRATA_742230
1120 bool "ARM errata: DMB operation may be faulty"
1121 depends on CPU_V7 && SMP
1122 help
1123 This option enables the workaround for the 742230 Cortex-A9
1124 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1125 between two write operations may not ensure the correct visibility
1126 ordering of the two writes. This workaround sets a specific bit in
1127 the diagnostic register of the Cortex-A9 which causes the DMB
1128 instruction to behave as a DSB, ensuring the correct behaviour of
1129 the two writes.
1130
Will Deacona672e992010-09-14 09:53:02 +01001131config ARM_ERRATA_742231
1132 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1133 depends on CPU_V7 && SMP
1134 help
1135 This option enables the workaround for the 742231 Cortex-A9
1136 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1137 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1138 accessing some data located in the same cache line, may get corrupted
1139 data due to bad handling of the address hazard when the line gets
1140 replaced from one of the CPUs at the same time as another CPU is
1141 accessing it. This workaround sets specific bits in the diagnostic
1142 register of the Cortex-A9 which reduces the linefill issuing
1143 capabilities of the processor.
1144
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001145config PL310_ERRATA_588369
1146 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1147 depends on CACHE_L2X0 && ARCH_OMAP4
1148 help
1149 The PL310 L2 cache controller implements three types of Clean &
1150 Invalidate maintenance operations: by Physical Address
1151 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1152 They are architecturally defined to behave as the execution of a
1153 clean operation followed immediately by an invalidate operation,
1154 both performing to the same memory location. This functionality
1155 is not correctly implemented in PL310 as clean lines are not
1156 invalidated as a result of these operations. Note that this errata
1157 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001158
1159config ARM_ERRATA_720789
1160 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1161 depends on CPU_V7 && SMP
1162 help
1163 This option enables the workaround for the 720789 Cortex-A9 (prior to
1164 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1165 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1166 As a consequence of this erratum, some TLB entries which should be
1167 invalidated are not, resulting in an incoherency in the system page
1168 tables. The workaround changes the TLB flushing routines to invalidate
1169 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001170
1171config ARM_ERRATA_743622
1172 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1173 depends on CPU_V7
1174 help
1175 This option enables the workaround for the 743622 Cortex-A9
1176 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1177 optimisation in the Cortex-A9 Store Buffer may lead to data
1178 corruption. This workaround sets a specific bit in the diagnostic
1179 register of the Cortex-A9 which disables the Store Buffer
1180 optimisation, preventing the defect from occurring. This has no
1181 visible impact on the overall performance or power consumption of the
1182 processor.
1183
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184endmenu
1185
1186source "arch/arm/common/Kconfig"
1187
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188menu "Bus support"
1189
1190config ARM_AMBA
1191 bool
1192
1193config ISA
1194 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 help
1196 Find out whether you have ISA slots on your motherboard. ISA is the
1197 name of a bus system, i.e. the way the CPU talks to the other stuff
1198 inside your box. Other bus systems are PCI, EISA, MicroChannel
1199 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1200 newer boards don't support it. If you have ISA, say Y, otherwise N.
1201
Russell King065909b2006-01-04 15:44:16 +00001202# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001203config ISA_DMA
1204 bool
Russell King065909b2006-01-04 15:44:16 +00001205 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Russell King065909b2006-01-04 15:44:16 +00001207# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001208config ISA_DMA_API
1209 bool
Al Viro5cae8412005-05-04 05:39:22 +01001210
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001212 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001213 help
1214 Find out whether you have a PCI motherboard. PCI is the name of a
1215 bus system, i.e. the way the CPU talks to the other stuff inside
1216 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1217 VESA. If you have PCI, say Y, otherwise N.
1218
Anton Vorontsov52882172010-04-19 13:20:49 +01001219config PCI_DOMAINS
1220 bool
1221 depends on PCI
1222
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001223config PCI_NANOENGINE
1224 bool "BSE nanoEngine PCI support"
1225 depends on SA1100_NANOENGINE
1226 help
1227 Enable PCI on the BSE nanoEngine board.
1228
Matthew Wilcox36e23592007-07-10 10:54:40 -06001229config PCI_SYSCALL
1230 def_bool PCI
1231
Linus Torvalds1da177e2005-04-16 15:20:36 -07001232# Select the host bridge type
1233config PCI_HOST_VIA82C505
1234 bool
1235 depends on PCI && ARCH_SHARK
1236 default y
1237
Mike Rapoporta0113a92007-11-25 08:55:34 +01001238config PCI_HOST_ITE8152
1239 bool
1240 depends on PCI && MACH_ARMCORE
1241 default y
1242 select DMABOUNCE
1243
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244source "drivers/pci/Kconfig"
1245
1246source "drivers/pcmcia/Kconfig"
1247
1248endmenu
1249
1250menu "Kernel Features"
1251
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001252source "kernel/time/Kconfig"
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254config SMP
1255 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001256 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001257 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001258 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001259 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1260 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1261 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001262 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001263 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264 help
1265 This enables support for systems with more than one CPU. If you have
1266 a system with only one CPU, like most personal computers, say N. If
1267 you have a system with more than one CPU, say Y.
1268
1269 If you say N here, the kernel will run on single and multiprocessor
1270 machines, but will use only one CPU of a multiprocessor machine. If
1271 you say Y here, the kernel will run on many, but not all, single
1272 processor machines. On a single processor machine, the kernel will
1273 run faster if you say N here.
1274
Adrian Bunk03502fa2008-02-03 15:50:21 +02001275 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001277 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278
1279 If you don't know what to do here, say N.
1280
Russell Kingf00ec482010-09-04 10:47:48 +01001281config SMP_ON_UP
1282 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1283 depends on EXPERIMENTAL
Dave Martined3768a2010-12-01 15:39:23 +01001284 depends on SMP && !XIP
Russell Kingf00ec482010-09-04 10:47:48 +01001285 default y
1286 help
1287 SMP kernels contain instructions which fail on non-SMP processors.
1288 Enabling this option allows the kernel to modify itself to make
1289 these instructions safe. Disabling it allows about 1K of space
1290 savings.
1291
1292 If you don't know what to do here, say Y.
1293
Russell Kinga8cbcd92009-05-16 11:51:14 +01001294config HAVE_ARM_SCU
1295 bool
1296 depends on SMP
1297 help
1298 This option enables support for the ARM system coherency unit
1299
Russell Kingf32f4ce2009-05-16 12:14:21 +01001300config HAVE_ARM_TWD
1301 bool
1302 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001303 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001304 help
1305 This options enables support for the ARM timer and watchdog unit
1306
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001307choice
1308 prompt "Memory split"
1309 default VMSPLIT_3G
1310 help
1311 Select the desired split between kernel and user memory.
1312
1313 If you are not absolutely sure what you are doing, leave this
1314 option alone!
1315
1316 config VMSPLIT_3G
1317 bool "3G/1G user/kernel split"
1318 config VMSPLIT_2G
1319 bool "2G/2G user/kernel split"
1320 config VMSPLIT_1G
1321 bool "1G/3G user/kernel split"
1322endchoice
1323
1324config PAGE_OFFSET
1325 hex
1326 default 0x40000000 if VMSPLIT_1G
1327 default 0x80000000 if VMSPLIT_2G
1328 default 0xC0000000
1329
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330config NR_CPUS
1331 int "Maximum number of CPUs (2-32)"
1332 range 2 32
1333 depends on SMP
1334 default "4"
1335
Russell Kinga054a812005-11-02 22:24:33 +00001336config HOTPLUG_CPU
1337 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1338 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001339 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001340 help
1341 Say Y here to experiment with turning CPUs off and on. CPUs
1342 can be controlled through /sys/devices/system/cpu.
1343
Russell King37ee16a2005-11-08 19:08:05 +00001344config LOCAL_TIMERS
1345 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001346 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001347 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001348 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001349 help
1350 Enable support for local timers on SMP platforms, rather then the
1351 legacy IPI broadcast method. Local timers allows the system
1352 accounting to be spread across the timer interval, preventing a
1353 "thundering herd" at every timer tick.
1354
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001355source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
Russell Kingf8065812006-03-02 22:41:59 +00001357config HZ
1358 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001359 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001360 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001361 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001362 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001363 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001364 default 100
1365
Catalin Marinas16c79652009-07-24 12:33:02 +01001366config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001367 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001368 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001369 select AEABI
1370 select ARM_ASM_UNIFIED
1371 help
1372 By enabling this option, the kernel will be compiled in
1373 Thumb-2 mode. A compiler/assembler that understand the unified
1374 ARM-Thumb syntax is needed.
1375
1376 If unsure, say N.
1377
Catalin Marinas0becb082009-07-24 12:32:53 +01001378config ARM_ASM_UNIFIED
1379 bool
1380
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001381config AEABI
1382 bool "Use the ARM EABI to compile the kernel"
1383 help
1384 This option allows for the kernel to be compiled using the latest
1385 ARM ABI (aka EABI). This is only useful if you are using a user
1386 space environment that is also compiled with EABI.
1387
1388 Since there are major incompatibilities between the legacy ABI and
1389 EABI, especially with regard to structure member alignment, this
1390 option also changes the kernel syscall calling convention to
1391 disambiguate both ABIs and allow for backward compatibility support
1392 (selected with CONFIG_OABI_COMPAT).
1393
1394 To use this you need GCC version 4.0.0 or later.
1395
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001396config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001397 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001398 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001399 default y
1400 help
1401 This option preserves the old syscall interface along with the
1402 new (ARM EABI) one. It also provides a compatibility layer to
1403 intercept syscalls that have structure arguments which layout
1404 in memory differs between the legacy ABI and the new ARM EABI
1405 (only for non "thumb" binaries). This option adds a tiny
1406 overhead to all syscalls and produces a slightly larger kernel.
1407 If you know you'll be using only pure EABI user space then you
1408 can say N here. If this option is not selected and you attempt
1409 to execute a legacy ABI binary then the result will be
1410 UNPREDICTABLE (in fact it can be predicted that it won't work
1411 at all). If in doubt say Y.
1412
Mel Gormaneb335752009-05-13 17:34:48 +01001413config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001414 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001415
Russell King05944d72006-11-30 20:43:51 +00001416config ARCH_SPARSEMEM_ENABLE
1417 bool
1418
Russell King07a2f732008-10-01 21:39:58 +01001419config ARCH_SPARSEMEM_DEFAULT
1420 def_bool ARCH_SPARSEMEM_ENABLE
1421
Russell King05944d72006-11-30 20:43:51 +00001422config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001423 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001424
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001425config HIGHMEM
1426 bool "High Memory Support (EXPERIMENTAL)"
1427 depends on MMU && EXPERIMENTAL
1428 help
1429 The address space of ARM processors is only 4 Gigabytes large
1430 and it has to accommodate user address space, kernel address
1431 space as well as some memory mapped IO. That means that, if you
1432 have a large amount of physical memory and/or IO, not all of the
1433 memory can be "permanently mapped" by the kernel. The physical
1434 memory that is not permanently mapped is called "high memory".
1435
1436 Depending on the selected kernel/user memory split, minimum
1437 vmalloc space and actual amount of RAM, you may not need this
1438 option which should result in a slightly faster kernel.
1439
1440 If unsure, say n.
1441
Russell King65cec8e2009-08-17 20:02:06 +01001442config HIGHPTE
1443 bool "Allocate 2nd-level pagetables from highmem"
1444 depends on HIGHMEM
1445 depends on !OUTER_CACHE
1446
Jamie Iles1b8873a2010-02-02 20:25:44 +01001447config HW_PERF_EVENTS
1448 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001449 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001450 default y
1451 help
1452 Enable hardware performance counter support for perf events. If
1453 disabled, perf events will use software events only.
1454
eric miao354e6f72010-06-25 09:46:09 +01001455config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001456 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001457 help
1458 This enables support for sparse irqs. This is useful in general
1459 as most CPUs have a fairly sparse array of IRQ vectors, which
1460 the irq_desc then maps directly on to. Systems with a high
1461 number of off-chip IRQs will want to treat this as
1462 experimental until they have been independently verified.
1463
Dave Hansen3f22ab22005-06-23 00:07:43 -07001464source "mm/Kconfig"
1465
Magnus Dammc1b2d972010-07-05 10:00:11 +01001466config FORCE_MAX_ZONEORDER
1467 int "Maximum zone order" if ARCH_SHMOBILE
1468 range 11 64 if ARCH_SHMOBILE
1469 default "9" if SA1111
1470 default "11"
1471 help
1472 The kernel memory allocator divides physically contiguous memory
1473 blocks into "zones", where each zone is a power of two number of
1474 pages. This option selects the largest power of two that the kernel
1475 keeps in the memory allocator. If you need to allocate very large
1476 blocks of physically contiguous memory, then you may need to
1477 increase this value.
1478
1479 This config option is actually maximum order plus one. For example,
1480 a value of 11 means that the largest free memory block is 2^10 pages.
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482config LEDS
1483 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001484 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001485 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1487 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001488 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001489 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001490 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 help
1492 If you say Y here, the LEDs on your machine will be used
1493 to provide useful information about your current system status.
1494
1495 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1496 be able to select which LEDs are active using the options below. If
1497 you are compiling a kernel for the EBSA-110 or the LART however, the
1498 red LED will simply flash regularly to indicate that the system is
1499 still functional. It is safe to say Y here if you have a CATS
1500 system, but the driver will do nothing.
1501
1502config LEDS_TIMER
1503 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001504 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1505 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001507 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508 default y if ARCH_EBSA110
1509 help
1510 If you say Y here, one of the system LEDs (the green one on the
1511 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1512 will flash regularly to indicate that the system is still
1513 operational. This is mainly useful to kernel hackers who are
1514 debugging unstable kernels.
1515
1516 The LART uses the same LED for both Timer LED and CPU usage LED
1517 functions. You may choose to use both, but the Timer LED function
1518 will overrule the CPU usage LED.
1519
1520config LEDS_CPU
1521 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001522 !ARCH_OMAP) \
1523 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1524 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525 depends on LEDS
1526 help
1527 If you say Y here, the red LED will be used to give a good real
1528 time indication of CPU usage, by lighting whenever the idle task
1529 is not currently executing.
1530
1531 The LART uses the same LED for both Timer LED and CPU usage LED
1532 functions. You may choose to use both, but the Timer LED function
1533 will overrule the CPU usage LED.
1534
1535config ALIGNMENT_TRAP
1536 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001537 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001539 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001541 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1543 address divisible by 4. On 32-bit ARM processors, these non-aligned
1544 fetch/store instructions will be emulated in software if you say
1545 here, which has a severe performance impact. This is necessary for
1546 correct operation of some network protocols. With an IP-only
1547 configuration it is safe to say N, otherwise say Y.
1548
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001549config UACCESS_WITH_MEMCPY
1550 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1551 depends on MMU && EXPERIMENTAL
1552 default y if CPU_FEROCEON
1553 help
1554 Implement faster copy_to_user and clear_user methods for CPU
1555 cores where a 8-word STM instruction give significantly higher
1556 memory write throughput than a sequence of individual 32bit stores.
1557
1558 A possible side effect is a slight increase in scheduling latency
1559 between threads sharing the same address space if they invoke
1560 such copy operations with large buffers.
1561
1562 However, if the CPU data cache is using a write-allocate mode,
1563 this option is unlikely to provide any performance gain.
1564
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001565config SECCOMP
1566 bool
1567 prompt "Enable seccomp to safely compute untrusted bytecode"
1568 ---help---
1569 This kernel feature is useful for number crunching applications
1570 that may need to compute untrusted bytecode during their
1571 execution. By using pipes or other transports made available to
1572 the process as file descriptors supporting the read/write
1573 syscalls, it's possible to isolate those applications in
1574 their own address space using seccomp. Once seccomp is
1575 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1576 and the task is only allowed to execute a few safe syscalls
1577 defined by each seccomp mode.
1578
Nicolas Pitrec743f382010-05-24 23:55:42 -04001579config CC_STACKPROTECTOR
1580 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001581 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001582 help
1583 This option turns on the -fstack-protector GCC feature. This
1584 feature puts, at the beginning of functions, a canary value on
1585 the stack just before the return address, and validates
1586 the value just before actually returning. Stack based buffer
1587 overflows (that need to overwrite this return address) now also
1588 overwrite the canary, which gets detected and the attack is then
1589 neutralized via a kernel panic.
1590 This feature requires gcc version 4.2 or above.
1591
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001592config DEPRECATED_PARAM_STRUCT
1593 bool "Provide old way to pass kernel parameters"
1594 help
1595 This was deprecated in 2001 and announced to live on for 5 years.
1596 Some old boot loaders still use this way.
1597
Linus Torvalds1da177e2005-04-16 15:20:36 -07001598endmenu
1599
1600menu "Boot options"
1601
1602# Compressed boot loader in ROM. Yes, we really want to ask about
1603# TEXT and BSS so we preserve their values in the config files.
1604config ZBOOT_ROM_TEXT
1605 hex "Compressed ROM boot loader base address"
1606 default "0"
1607 help
1608 The physical address at which the ROM-able zImage is to be
1609 placed in the target. Platforms which normally make use of
1610 ROM-able zImage formats normally set this to a suitable
1611 value in their defconfig file.
1612
1613 If ZBOOT_ROM is not enabled, this has no effect.
1614
1615config ZBOOT_ROM_BSS
1616 hex "Compressed ROM boot loader BSS address"
1617 default "0"
1618 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001619 The base address of an area of read/write memory in the target
1620 for the ROM-able zImage which must be available while the
1621 decompressor is running. It must be large enough to hold the
1622 entire decompressed kernel plus an additional 128 KiB.
1623 Platforms which normally make use of ROM-able zImage formats
1624 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625
1626 If ZBOOT_ROM is not enabled, this has no effect.
1627
1628config ZBOOT_ROM
1629 bool "Compressed boot loader in ROM/flash"
1630 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1631 help
1632 Say Y here if you intend to execute your compressed kernel image
1633 (zImage) directly from ROM or flash. If unsure, say N.
1634
1635config CMDLINE
1636 string "Default kernel command string"
1637 default ""
1638 help
1639 On some architectures (EBSA110 and CATS), there is currently no way
1640 for the boot loader to pass arguments to the kernel. For these
1641 architectures, you should supply some command-line options at build
1642 time by entering them here. As a minimum, you should specify the
1643 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1644
Alexander Holler92d20402010-02-16 19:04:53 +01001645config CMDLINE_FORCE
1646 bool "Always use the default kernel command string"
1647 depends on CMDLINE != ""
1648 help
1649 Always use the default kernel command string, even if the boot
1650 loader passes other arguments to the kernel.
1651 This is useful if you cannot or don't want to change the
1652 command-line options your boot loader passes to the kernel.
1653
1654 If unsure, say N.
1655
Linus Torvalds1da177e2005-04-16 15:20:36 -07001656config XIP_KERNEL
1657 bool "Kernel Execute-In-Place from ROM"
1658 depends on !ZBOOT_ROM
1659 help
1660 Execute-In-Place allows the kernel to run from non-volatile storage
1661 directly addressable by the CPU, such as NOR flash. This saves RAM
1662 space since the text section of the kernel is not loaded from flash
1663 to RAM. Read-write sections, such as the data section and stack,
1664 are still copied to RAM. The XIP kernel is not compressed since
1665 it has to run directly from flash, so it will take more space to
1666 store it. The flash address used to link the kernel object files,
1667 and for storing it, is configuration dependent. Therefore, if you
1668 say Y here, you must know the proper physical address where to
1669 store the kernel image depending on your own flash memory usage.
1670
1671 Also note that the make target becomes "make xipImage" rather than
1672 "make zImage" or "make Image". The final kernel binary to put in
1673 ROM memory will be arch/arm/boot/xipImage.
1674
1675 If unsure, say N.
1676
1677config XIP_PHYS_ADDR
1678 hex "XIP Kernel Physical Location"
1679 depends on XIP_KERNEL
1680 default "0x00080000"
1681 help
1682 This is the physical address in your flash memory the kernel will
1683 be linked for and stored to. This address is dependent on your
1684 own flash usage.
1685
Richard Purdiec587e4a2007-02-06 21:29:00 +01001686config KEXEC
1687 bool "Kexec system call (EXPERIMENTAL)"
1688 depends on EXPERIMENTAL
1689 help
1690 kexec is a system call that implements the ability to shutdown your
1691 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001692 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001693 you can start any kernel with it, not just Linux.
1694
1695 It is an ongoing process to be certain the hardware in a machine
1696 is properly shutdown, so do not be surprised if this code does not
1697 initially work for you. It may help to enable device hotplugging
1698 support.
1699
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001700config ATAGS_PROC
1701 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001702 depends on KEXEC
1703 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001704 help
1705 Should the atags used to boot the kernel be exported in an "atags"
1706 file in procfs. Useful with kexec.
1707
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001708config CRASH_DUMP
1709 bool "Build kdump crash kernel (EXPERIMENTAL)"
1710 depends on EXPERIMENTAL
1711 help
1712 Generate crash dump after being started by kexec. This should
1713 be normally only set in special crash dump kernels which are
1714 loaded in the main kernel with kexec-tools into a specially
1715 reserved region and then later executed after a crash by
1716 kdump/kexec. The crash dump kernel must be compiled to a
1717 memory address not used by the main kernel
1718
1719 For more details see Documentation/kdump/kdump.txt
1720
Eric Miaoe69edc792010-07-05 15:56:50 +02001721config AUTO_ZRELADDR
1722 bool "Auto calculation of the decompressed kernel image address"
1723 depends on !ZBOOT_ROM && !ARCH_U300
1724 help
1725 ZRELADDR is the physical address where the decompressed kernel
1726 image will be placed. If AUTO_ZRELADDR is selected, the address
1727 will be determined at run-time by masking the current IP with
1728 0xf8000000. This assumes the zImage being placed in the first 128MB
1729 from start of memory.
1730
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731endmenu
1732
Russell Kingac9d7ef2008-08-18 17:26:00 +01001733menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734
Ben Dooks89c52ed2009-07-30 23:23:24 +01001735if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736
1737source "drivers/cpufreq/Kconfig"
1738
Yong Shen64f102b2010-10-21 21:18:59 +08001739config CPU_FREQ_IMX
1740 tristate "CPUfreq driver for i.MX CPUs"
1741 depends on ARCH_MXC && CPU_FREQ
1742 help
1743 This enables the CPUfreq driver for i.MX CPUs.
1744
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745config CPU_FREQ_SA1100
1746 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747
1748config CPU_FREQ_SA1110
1749 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750
1751config CPU_FREQ_INTEGRATOR
1752 tristate "CPUfreq driver for ARM Integrator CPUs"
1753 depends on ARCH_INTEGRATOR && CPU_FREQ
1754 default y
1755 help
1756 This enables the CPUfreq driver for ARM Integrator CPUs.
1757
1758 For details, take a look at <file:Documentation/cpu-freq>.
1759
1760 If in doubt, say Y.
1761
Russell King9e2697f2007-12-14 13:30:14 +00001762config CPU_FREQ_PXA
1763 bool
1764 depends on CPU_FREQ && ARCH_PXA && PXA25x
1765 default y
1766 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1767
Mark Brownb3748dd2009-06-15 11:23:20 +01001768config CPU_FREQ_S3C64XX
1769 bool "CPUfreq support for Samsung S3C64XX CPUs"
1770 depends on CPU_FREQ && CPU_S3C6410
1771
Ben Dooks9d56c022009-07-30 23:23:25 +01001772config CPU_FREQ_S3C
1773 bool
1774 help
1775 Internal configuration node for common cpufreq on Samsung SoC
1776
1777config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001778 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001779 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1780 select CPU_FREQ_S3C
1781 help
1782 This enables the CPUfreq driver for the Samsung S3C24XX family
1783 of CPUs.
1784
1785 For details, take a look at <file:Documentation/cpu-freq>.
1786
1787 If in doubt, say N.
1788
1789config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001790 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001791 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1792 help
1793 Compile in support for changing the PLL frequency from the
1794 S3C24XX series CPUfreq driver. The PLL takes time to settle
1795 after a frequency change, so by default it is not enabled.
1796
1797 This also means that the PLL tables for the selected CPU(s) will
1798 be built which may increase the size of the kernel image.
1799
1800config CPU_FREQ_S3C24XX_DEBUG
1801 bool "Debug CPUfreq Samsung driver core"
1802 depends on CPU_FREQ_S3C24XX
1803 help
1804 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1805
1806config CPU_FREQ_S3C24XX_IODEBUG
1807 bool "Debug CPUfreq Samsung driver IO timing"
1808 depends on CPU_FREQ_S3C24XX
1809 help
1810 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1811
Ben Dookse6d197a2009-07-30 23:23:42 +01001812config CPU_FREQ_S3C24XX_DEBUGFS
1813 bool "Export debugfs for CPUFreq"
1814 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1815 help
1816 Export status information via debugfs.
1817
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818endif
1819
Russell Kingac9d7ef2008-08-18 17:26:00 +01001820source "drivers/cpuidle/Kconfig"
1821
1822endmenu
1823
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824menu "Floating point emulation"
1825
1826comment "At least one emulation must be selected"
1827
1828config FPE_NWFPE
1829 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001830 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831 ---help---
1832 Say Y to include the NWFPE floating point emulator in the kernel.
1833 This is necessary to run most binaries. Linux does not currently
1834 support floating point hardware so you need to say Y here even if
1835 your machine has an FPA or floating point co-processor podule.
1836
1837 You may say N here if you are going to load the Acorn FPEmulator
1838 early in the bootup.
1839
1840config FPE_NWFPE_XP
1841 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001842 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001843 help
1844 Say Y to include 80-bit support in the kernel floating-point
1845 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1846 Note that gcc does not generate 80-bit operations by default,
1847 so in most cases this option only enlarges the size of the
1848 floating point emulator without any good reason.
1849
1850 You almost surely want to say N here.
1851
1852config FPE_FASTFPE
1853 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001854 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855 ---help---
1856 Say Y here to include the FAST floating point emulator in the kernel.
1857 This is an experimental much faster emulator which now also has full
1858 precision for the mantissa. It does not support any exceptions.
1859 It is very simple, and approximately 3-6 times faster than NWFPE.
1860
1861 It should be sufficient for most programs. It may be not suitable
1862 for scientific calculations, but you have to check this for yourself.
1863 If you do not feel you need a faster FP emulation you should better
1864 choose NWFPE.
1865
1866config VFP
1867 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001868 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869 help
1870 Say Y to include VFP support code in the kernel. This is needed
1871 if your hardware includes a VFP unit.
1872
1873 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1874 release notes and additional status information.
1875
1876 Say N if your target does not have VFP hardware.
1877
Catalin Marinas25ebee02007-09-25 15:22:24 +01001878config VFPv3
1879 bool
1880 depends on VFP
1881 default y if CPU_V7
1882
Catalin Marinasb5872db2008-01-10 19:16:17 +01001883config NEON
1884 bool "Advanced SIMD (NEON) Extension support"
1885 depends on VFPv3 && CPU_V7
1886 help
1887 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1888 Extension.
1889
Linus Torvalds1da177e2005-04-16 15:20:36 -07001890endmenu
1891
1892menu "Userspace binary formats"
1893
1894source "fs/Kconfig.binfmt"
1895
1896config ARTHUR
1897 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001898 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899 help
1900 Say Y here to include the kernel code necessary if you want to run
1901 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1902 experimental; if this sounds frightening, say N and sleep in peace.
1903 You can also say M here to compile this support as a module (which
1904 will be called arthur).
1905
1906endmenu
1907
1908menu "Power management options"
1909
Russell Kingeceab4a2005-11-15 11:31:41 +00001910source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001911
Johannes Bergf4cb5702007-12-08 02:14:00 +01001912config ARCH_SUSPEND_POSSIBLE
1913 def_bool y
1914
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915endmenu
1916
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001917source "net/Kconfig"
1918
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001919source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920
1921source "fs/Kconfig"
1922
Linus Torvalds1da177e2005-04-16 15:20:36 -07001923source "arch/arm/Kconfig.debug"
1924
1925source "security/Kconfig"
1926
1927source "crypto/Kconfig"
1928
1929source "lib/Kconfig"