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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6mainmenu "Linux Kernel Configuration"
7
8config ARM
9 bool
10 default y
David Woodhousee17c6d52008-06-17 12:19:34 +010011 select HAVE_AOUT
Adrian Bunk2064c942008-04-28 23:44:43 +020012 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +010013 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080014 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000015 select SYS_SUPPORTS_APM_EMULATION
Will Deacon24b44a62010-01-20 19:05:07 +010016 select GENERIC_ATOMIC64 if (!CPU_32v6K)
Will Deaconfe166142010-04-30 11:37:51 +010017 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060018 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050019 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080020 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040021 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010022 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
23 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040024 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080025 select HAVE_KERNEL_GZIP
26 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010027 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080028 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010029 select HAVE_PERF_EVENTS
30 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010031 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010032 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 Europe. There is an ARM Linux project with a web page at
39 <http://www.arm.linux.org.uk/>.
40
Russell King1a189b92008-04-13 21:41:55 +010041config HAVE_PWM
42 bool
43
Ralf Baechle75e71532007-02-09 17:08:58 +000044config SYS_SUPPORTS_APM_EMULATION
45 bool
46
David Brownell0a938b92007-03-05 00:30:18 -080047config GENERIC_GPIO
48 bool
David Brownell0a938b92007-03-05 00:30:18 -080049
John Stultz5cfc8ee2010-03-24 00:22:36 +000050config ARCH_USES_GETTIMEOFFSET
51 bool
52 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010053
Kevin Hilman0567a0c2007-03-13 20:29:24 +010054config GENERIC_CLOCKEVENTS
55 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010056
Catalin Marinasa8655e82008-02-04 17:30:57 +010057config GENERIC_CLOCKEVENTS_BROADCAST
58 bool
59 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010060 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010061
Linus Walleijbc581772009-09-15 17:30:37 +010062config HAVE_TCM
63 bool
64 select GENERIC_ALLOCATOR
65
Russell Kinge119bff2010-01-10 17:23:29 +000066config HAVE_PROC_CPU
67 bool
68
Al Viro5ea81762007-02-11 15:41:31 +000069config NO_IOPORT
70 bool
Al Viro5ea81762007-02-11 15:41:31 +000071
Linus Torvalds1da177e2005-04-16 15:20:36 -070072config EISA
73 bool
74 ---help---
75 The Extended Industry Standard Architecture (EISA) bus was
76 developed as an open alternative to the IBM MicroChannel bus.
77
78 The EISA bus provided some of the features of the IBM MicroChannel
79 bus while maintaining backward compatibility with cards made for
80 the older ISA bus. The EISA bus saw limited use between 1988 and
81 1995 when it was made obsolete by the PCI bus.
82
83 Say Y here if you are building a kernel for an EISA-based machine.
84
85 Otherwise, say N.
86
87config SBUS
88 bool
89
90config MCA
91 bool
92 help
93 MicroChannel Architecture is found in some IBM PS/2 machines and
94 laptops. It is a bus system similar to PCI or ISA. See
95 <file:Documentation/mca.txt> (and especially the web page given
96 there) before attempting to build an MCA bus kernel.
97
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010098config GENERIC_HARDIRQS
99 bool
100 default y
101
Russell Kingf16fb1e2007-04-28 09:59:37 +0100102config STACKTRACE_SUPPORT
103 bool
104 default y
105
Nicolas Pitref76e9152008-04-24 01:31:46 -0400106config HAVE_LATENCYTOP_SUPPORT
107 bool
108 depends on !SMP
109 default y
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config LOCKDEP_SUPPORT
112 bool
113 default y
114
Russell King7ad1bcb2006-08-27 12:07:02 +0100115config TRACE_IRQFLAGS_SUPPORT
116 bool
117 default y
118
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100119config HARDIRQS_SW_RESEND
120 bool
121 default y
122
123config GENERIC_IRQ_PROBE
124 bool
125 default y
126
Nick Piggin95c354f2008-01-30 13:31:20 +0100127config GENERIC_LOCKBREAK
128 bool
129 default y
130 depends on SMP && PREEMPT
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132config RWSEM_GENERIC_SPINLOCK
133 bool
134 default y
135
136config RWSEM_XCHGADD_ALGORITHM
137 bool
138
David Howellsf0d1b0b2006-12-08 02:37:49 -0800139config ARCH_HAS_ILOG2_U32
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
142config ARCH_HAS_ILOG2_U64
143 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800144
Ben Dooks89c52ed2009-07-30 23:23:24 +0100145config ARCH_HAS_CPUFREQ
146 bool
147 help
148 Internal node to signify that the ARCH has CPUFREQ support
149 and that the relevant menu configurations are displayed for
150 it.
151
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100152config ARCH_HAS_CPU_IDLE_WAIT
153 def_bool y
154
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800155config GENERIC_HWEIGHT
156 bool
157 default y
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config GENERIC_CALIBRATE_DELAY
160 bool
161 default y
162
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100163config ARCH_MAY_HAVE_PC_FDC
164 bool
165
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800166config ZONE_DMA
167 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800168
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800169config NEED_DMA_MAP_STATE
170 def_bool y
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config GENERIC_ISA_DMA
173 bool
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config FIQ
176 bool
177
Al Viro034d2f52005-12-19 16:27:59 -0500178config ARCH_MTD_XIP
179 bool
180
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100181config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100182 def_bool y
183
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100184config ARM_L1_CACHE_SHIFT_6
185 bool
186 help
187 Setting ARM L1 cache line size to 64 Bytes.
188
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189config VECTORS_BASE
190 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900191 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100192 default DRAM_BASE if REMAP_VECTORS_TO_RAM
193 default 0x00000000
194 help
195 The base address of exception vectors.
196
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197source "init/Kconfig"
198
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700199source "kernel/Kconfig.freezer"
200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201menu "System Type"
202
Hyok S. Choi3c427972009-07-24 12:35:00 +0100203config MMU
204 bool "MMU-based Paged Memory Management Support"
205 default y
206 help
207 Select if you want MMU-based virtualised addressing space
208 support by paged memory management. If unsure, say 'Y'.
209
Russell Kingccf50e22010-03-15 19:03:06 +0000210#
211# The "ARM system type" choice list is ordered alphabetically by option
212# text. Please add new entries in the option alphabetic order.
213#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214choice
215 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000216 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218config ARCH_AAEC2000
219 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000220 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700222 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000223 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100224 help
225 This enables support for systems based on the Agilent AAEC-2000
226
227config ARCH_INTEGRATOR
228 bool "ARM Ltd. Integrator family"
229 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100230 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000231 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000232 select ICST
Russell King13edd862010-01-15 21:49:23 +0000233 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000234 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100235 help
236 Support for ARM's Integrator platform.
237
238config ARCH_REALVIEW
239 bool "ARM Ltd. RealView family"
240 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000241 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000242 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100243 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100244 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000245 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000246 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100247 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100248 help
249 This enables support for ARM Ltd RealView boards.
250
251config ARCH_VERSATILE
252 bool "ARM Ltd. Versatile family"
253 select ARM_AMBA
254 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000255 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000256 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100257 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100258 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000259 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000260 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 This enables support for ARM Ltd Versatile board.
263
Russell Kingceade892010-02-11 21:44:53 +0000264config ARCH_VEXPRESS
265 bool "ARM Ltd. Versatile Express family"
266 select ARCH_WANT_OPTIONAL_GPIOLIB
267 select ARM_AMBA
268 select ARM_TIMER_SP804
269 select COMMON_CLKDEV
270 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000271 select HAVE_CLK
272 select ICST
273 select PLAT_VERSATILE
274 help
275 This enables support for the ARM Ltd Versatile Express boards.
276
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100277config ARCH_AT91
278 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100279 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700280 select HAVE_CLK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100282 This enables support for systems based on the Atmel AT91RM9200,
283 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100284
Russell Kingccf50e22010-03-15 19:03:06 +0000285config ARCH_BCMRING
286 bool "Broadcom BCMRING"
287 depends on MMU
288 select CPU_V6
289 select ARM_AMBA
290 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000291 select GENERIC_CLOCKEVENTS
292 select ARCH_WANT_OPTIONAL_GPIOLIB
293 help
294 Support for Broadcom's BCMRing platform.
295
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000298 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000299 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000300 help
301 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300303config ARCH_CNS3XXX
304 bool "Cavium Networks CNS3XXX family"
305 select CPU_V6
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300306 select GENERIC_CLOCKEVENTS
307 select ARM_GIC
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400308 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300309 help
310 Support for Cavium Networks CNS3XXX platform.
311
Russell King788c9702009-04-26 14:21:59 +0100312config ARCH_GEMINI
313 bool "Cortina Systems Gemini"
314 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100315 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000316 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100317 help
318 Support for the Cortina Systems Gemini family SoCs
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320config ARCH_EBSA110
321 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000322 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100323 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000324 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000325 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 help
327 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000328 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 Ethernet interface, two PCMCIA sockets, two serial ports and a
330 parallel port.
331
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000332config ARCH_EP93XX
333 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000334 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000335 select ARM_AMBA
336 select ARM_VIC
Russell Kingae696fd2008-11-30 17:11:49 +0000337 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700338 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100339 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000340 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000341 help
342 This enables support for the Cirrus EP93xx series of CPUs.
343
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344config ARCH_FOOTBRIDGE
345 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000346 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000348 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000349 help
350 Support for systems based on the DC21285 companion chip
351 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352
Russell King788c9702009-04-26 14:21:59 +0100353config ARCH_MXC
354 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100355 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100356 select ARCH_REQUIRE_GPIOLIB
Uwe Kleine-König03e09cd2010-02-15 17:10:42 +0100357 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100358 help
359 Support for Freescale MXC/iMX-based family of processors
360
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100361config ARCH_STMP3XXX
362 bool "Freescale STMP3xxx"
363 select CPU_ARM926T
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100364 select COMMON_CLKDEV
365 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100366 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100367 select USB_ARCH_HAS_EHCI
368 help
369 Support for systems based on the Freescale 3xxx CPUs.
370
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371config ARCH_NETX
372 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000373 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100374 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100375 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000376 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377 This enables support for systems based on the Hilscher NetX Soc
378
379config ARCH_H720X
380 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000381 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100382 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000383 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100384 help
385 This enables support for systems based on the Hynix HMS720x
386
Russell King3b938be2007-05-12 11:25:44 +0100387config ARCH_IOP13XX
388 bool "IOP13xx-based"
389 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000390 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100391 select PLAT_IOP
392 select PCI
393 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100394 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100395 help
396 Support for Intel's IOP13XX (XScale) family of processors.
397
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100398config ARCH_IOP32X
399 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100400 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100402 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100403 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100404 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000405 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100406 Support for Intel's 80219 and IOP32X (XScale) family of
407 processors.
408
409config ARCH_IOP33X
410 bool "IOP33x-based"
411 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100413 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100414 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100415 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100416 help
417 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418
Russell King3b938be2007-05-12 11:25:44 +0100419config ARCH_IXP23XX
420 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100421 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000422 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100423 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000424 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100425 help
Russell King3b938be2007-05-12 11:25:44 +0100426 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428config ARCH_IXP2000
429 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100430 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100432 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000433 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000434 help
435 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
Russell King3b938be2007-05-12 11:25:44 +0100437config ARCH_IXP4XX
438 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100439 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000440 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100441 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100442 select GENERIC_CLOCKEVENTS
Russell King485bdde2008-10-17 14:00:43 +0100443 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100444 help
Russell King3b938be2007-05-12 11:25:44 +0100445 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100446
Saeed Bisharaedabd382009-08-06 15:12:43 +0300447config ARCH_DOVE
448 bool "Marvell Dove"
449 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300450 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300451 select GENERIC_CLOCKEVENTS
452 select PLAT_ORION
453 help
454 Support for the Marvell Dove SoC 88AP510
455
Saeed Bishara651c74c2008-06-22 22:45:06 +0200456config ARCH_KIRKWOOD
457 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000458 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200459 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700460 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200461 select GENERIC_CLOCKEVENTS
462 select PLAT_ORION
463 help
464 Support for the following Marvell Kirkwood series SoCs:
465 88F6180, 88F6192 and 88F6281.
466
Russell King788c9702009-04-26 14:21:59 +0100467config ARCH_LOKI
468 bool "Marvell Loki (88RC8480)"
469 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100470 select GENERIC_CLOCKEVENTS
471 select PLAT_ORION
472 help
473 Support for the Marvell Loki (88RC8480) SoC.
474
Kevin Wells40805942010-07-27 08:49:04 -0700475config ARCH_LPC32XX
476 bool "NXP LPC32XX"
477 select CPU_ARM926T
478 select ARCH_REQUIRE_GPIOLIB
479 select HAVE_IDE
480 select ARM_AMBA
481 select USB_ARCH_HAS_OHCI
482 select COMMON_CLKDEV
483 select GENERIC_TIME
484 select GENERIC_CLOCKEVENTS
485 help
486 Support for the NXP LPC32XX family of processors
487
Russell King788c9702009-04-26 14:21:59 +0100488config ARCH_MV78XX0
489 bool "Marvell MV78xx0"
490 select CPU_FEROCEON
491 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700492 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100493 select GENERIC_CLOCKEVENTS
494 select PLAT_ORION
495 help
496 Support for the following Marvell MV78xx0 series SoCs:
497 MV781x0, MV782x0.
498
499config ARCH_ORION5X
500 bool "Marvell Orion"
501 depends on MMU
502 select CPU_FEROCEON
503 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700504 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100505 select GENERIC_CLOCKEVENTS
506 select PLAT_ORION
507 help
508 Support for the following Marvell Orion 5x series SoCs:
509 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
510 Orion-2 (5281), Orion-1-90 (6183).
511
512config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500513 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100514 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100515 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100516 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100517 select GENERIC_CLOCKEVENTS
518 select TICK_ONESHOT
519 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400520 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100521 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500522 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100523
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100524config ARCH_KS8695
525 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000526 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100527 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000528 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100529 help
530 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
531 System-on-Chip devices.
532
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100533config ARCH_NS9XXX
534 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100536 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100537 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700538 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100539 help
540 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
541 System.
542
543 <http://www.digi.com/products/microprocessors/index.jsp>
544
Russell King788c9702009-04-26 14:21:59 +0100545config ARCH_W90X900
546 bool "Nuvoton W90X900 CPU"
547 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100548 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100549 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100550 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200551 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100552 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
553 At present, the w90x900 has been renamed nuc900, regarding
554 the ARM series product line, you can login the following
555 link address to know more.
556
557 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
558 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400559
wanzongshuna62e9032009-12-31 15:06:05 +0100560config ARCH_NUC93X
561 bool "Nuvoton NUC93X CPU"
562 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100563 select COMMON_CLKDEV
564 help
565 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
566 low-power and high performance MPEG-4/JPEG multimedia controller chip.
567
Erik Gillingc5f80062010-01-21 16:53:02 -0800568config ARCH_TEGRA
569 bool "NVIDIA Tegra"
570 select GENERIC_TIME
571 select GENERIC_CLOCKEVENTS
572 select GENERIC_GPIO
573 select HAVE_CLK
Colin Crossd8611962010-01-28 16:40:29 -0800574 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800575 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700576 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800577 help
578 This enables support for NVIDIA Tegra based systems (Tegra APX,
579 Tegra 6xx and Tegra 2 series).
580
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100581config ARCH_PNX4008
582 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000583 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000584 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000585 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100586 help
587 This enables support for Philips PNX4008 mobile platform.
588
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700590 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100591 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500592 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100593 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000594 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700595 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100596 select GENERIC_CLOCKEVENTS
Russell Kinga88264c2007-11-12 22:45:16 +0000597 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800598 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800599 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000600 help
eric miao2c8086a2007-09-11 19:13:17 -0700601 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602
Russell King788c9702009-04-26 14:21:59 +0100603config ARCH_MSM
604 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500605 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800606 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700607 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800608 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800609 Support for Qualcomm MSM/QSD based systems. This runs on the
610 apps processor of the MSM/QSD and depends on a shared memory
611 interface to the modem processor which runs the baseband
612 stack and controls some vital subsystems
613 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800614
Magnus Dammc793c1b2010-02-05 11:14:49 +0000615config ARCH_SHMOBILE
616 bool "Renesas SH-Mobile"
617 help
618 Support for Renesas's SH-Mobile ARM platforms
619
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620config ARCH_RPC
621 bool "RiscPC"
622 select ARCH_ACORN
623 select FIQ
624 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100625 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100626 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000627 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000628 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100629 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000630 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 help
632 On the Acorn Risc-PC, Linux can support the internal IDE disk and
633 CD-ROM interface, serial and parallel port, and the floppy drive.
634
635config ARCH_SA1100
636 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000637 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100638 select ISA
Russell King05944d72006-11-30 20:43:51 +0000639 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500640 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100641 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000642 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100643 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700644 select HAVE_CLK
Russell King3e238be2008-04-14 23:03:10 +0100645 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700646 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000647 help
648 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649
650config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900651 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800652 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100653 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700654 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000655 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900656 select HAVE_S3C2410_I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 help
658 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
659 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000660 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661
Ben Dooks63b1f512010-04-30 16:32:26 +0900662 Note, the S3C2416 and the S3C2450 are so close that they even share
663 the same SoC ID code. This means that there is no seperate machine
664 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
665
Ben Dooksa08ab632008-10-21 14:06:39 +0100666config ARCH_S3C64XX
667 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000668 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900669 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900670 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100671 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900672 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000673 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100674 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900675 select ARCH_REQUIRE_GPIOLIB
676 select SAMSUNG_CLKSRC
677 select SAMSUNG_IRQ_VIC_TIMER
678 select SAMSUNG_IRQ_UART
679 select S3C_GPIO_TRACK
680 select S3C_GPIO_PULL_UPDOWN
681 select S3C_GPIO_CFG_S3C24XX
682 select S3C_GPIO_CFG_S3C64XX
683 select S3C_DEV_NAND
684 select USB_ARCH_HAS_OHCI
685 select SAMSUNG_GPIOLIB_4BIT
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900686 select HAVE_S3C2410_I2C
Banajit Goswamid8653d92010-07-29 22:22:40 +0900687 select HAVE_S3C2410_WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100688 help
689 Samsung S3C64XX series based systems
690
Kukjin Kim49b7a492010-09-07 15:47:18 +0900691config ARCH_S5P64X0
692 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900693 select CPU_V6
694 select GENERIC_GPIO
695 select HAVE_CLK
Banajit Goswamid8653d92010-07-29 22:22:40 +0900696 select HAVE_S3C2410_WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900697 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900698 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900699 select HAVE_S3C_RTC
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900700 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900701 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
702 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900703
Kukjin Kim550db7f2010-01-29 10:19:26 +0900704config ARCH_S5P6442
705 bool "Samsung S5P6442"
706 select CPU_V6
707 select GENERIC_GPIO
708 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900709 select ARCH_USES_GETTIMEOFFSET
Banajit Goswamid8653d92010-07-29 22:22:40 +0900710 select HAVE_S3C2410_WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900711 help
712 Samsung S5P6442 CPU based systems
713
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200714config ARCH_S5PC100
715 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900716 select GENERIC_GPIO
717 select HAVE_CLK
718 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100719 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900720 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900721 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900722 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900723 select HAVE_S3C2410_WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900724 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200725 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900726
Kukjin Kim170f4e42010-02-24 16:40:44 +0900727config ARCH_S5PV210
728 bool "Samsung S5PV210/S5PC110"
729 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900730 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900731 select GENERIC_GPIO
732 select HAVE_CLK
733 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900734 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900735 select ARCH_USES_GETTIMEOFFSET
Naveen Krishna Ch4b623922010-07-29 18:49:34 +0900736 select HAVE_S3C2410_I2C
Atul Dahiya03eb2742010-07-21 17:40:59 +0900737 select HAVE_S3C_RTC
Banajit Goswamid8653d92010-07-29 22:22:40 +0900738 select HAVE_S3C2410_WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900739 help
740 Samsung S5PV210/S5PC110 series based systems
741
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900742config ARCH_S5PV310
743 bool "Samsung S5PV310/S5PC210"
744 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900745 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900746 select GENERIC_GPIO
747 select HAVE_CLK
748 select GENERIC_CLOCKEVENTS
Changhwan Youncdff6e62010-09-20 15:25:51 +0900749 select HAVE_S3C_RTC
Kyungmin Parkb7a98252010-10-12 07:49:24 +0900750 select HAVE_S3C2410_I2C
Jemings Ko8d75c912010-09-20 15:33:04 +0900751 select HAVE_S3C2410_WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900752 help
753 Samsung S5PV310 series based systems
754
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755config ARCH_SHARK
756 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000757 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100758 select ISA
759 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100760 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100761 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000762 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000763 help
764 Support for the StrongARM based Digital DNARD machine, also known
765 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766
Hans J. Koch83ef3332010-09-17 18:13:56 +0200767config ARCH_TCC_926
768 bool "Telechips TCC ARM926-based systems"
769 select CPU_ARM926T
770 select HAVE_CLK
771 select COMMON_CLKDEV
772 select GENERIC_CLOCKEVENTS
773 help
774 Support for Telechips TCC ARM926-based systems.
775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776config ARCH_LH7A40X
777 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000778 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100779 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000780 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781 help
782 Say Y here for systems based on one of the Sharp LH7A40X
783 System on a Chip processors. These CPUs include an ARM922T
784 core with a wide array of integrated devices for
785 hand-held and low-power applications.
786
Linus Walleijd98aac72009-04-27 10:21:46 +0100787config ARCH_U300
788 bool "ST-Ericsson U300 Series"
789 depends on MMU
790 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100791 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100792 select ARM_AMBA
793 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100794 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100795 select COMMON_CLKDEV
796 select GENERIC_GPIO
797 help
798 Support for ST-Ericsson U300 series mobile platforms.
799
Russell Kingccf50e22010-03-15 19:03:06 +0000800config ARCH_U8500
801 bool "ST-Ericsson U8500 Series"
802 select CPU_V7
803 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000804 select GENERIC_CLOCKEVENTS
805 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100806 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000807 help
808 Support for ST-Ericsson's Ux500 architecture
809
810config ARCH_NOMADIK
811 bool "STMicroelectronics Nomadik"
812 select ARM_AMBA
813 select ARM_VIC
814 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000815 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000816 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000817 select ARCH_REQUIRE_GPIOLIB
818 help
819 Support for the Nomadik platform by ST-Ericsson
820
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100821config ARCH_DAVINCI
822 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100823 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700824 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100825 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700826 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700827 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700828 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530829 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100830 help
831 Support for TI's DaVinci platform.
832
Russell King3b938be2007-05-12 11:25:44 +0100833config ARCH_OMAP
834 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700835 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700836 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100837 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700838 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800839 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100840 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200841 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100842
viresh kumarcee37e52010-04-01 12:31:05 +0100843config PLAT_SPEAR
844 bool "ST SPEAr"
845 select ARM_AMBA
846 select ARCH_REQUIRE_GPIOLIB
847 select COMMON_CLKDEV
848 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100849 select HAVE_CLK
850 help
851 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
852
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853endchoice
854
Russell Kingccf50e22010-03-15 19:03:06 +0000855#
856# This is sorted alphabetically by mach-* pathname. However, plat-*
857# Kconfigs may be included either alphabetically (according to the
858# plat- suffix) or along side the corresponding mach-* source.
859#
Russell King95b8f202010-01-14 11:43:54 +0000860source "arch/arm/mach-aaec2000/Kconfig"
861
862source "arch/arm/mach-at91/Kconfig"
863
864source "arch/arm/mach-bcmring/Kconfig"
865
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866source "arch/arm/mach-clps711x/Kconfig"
867
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300868source "arch/arm/mach-cns3xxx/Kconfig"
869
Russell King95b8f202010-01-14 11:43:54 +0000870source "arch/arm/mach-davinci/Kconfig"
871
872source "arch/arm/mach-dove/Kconfig"
873
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000874source "arch/arm/mach-ep93xx/Kconfig"
875
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876source "arch/arm/mach-footbridge/Kconfig"
877
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200878source "arch/arm/mach-gemini/Kconfig"
879
Russell King95b8f202010-01-14 11:43:54 +0000880source "arch/arm/mach-h720x/Kconfig"
881
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882source "arch/arm/mach-integrator/Kconfig"
883
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100884source "arch/arm/mach-iop32x/Kconfig"
885
886source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Dan Williams285f5fa2006-12-07 02:59:39 +0100888source "arch/arm/mach-iop13xx/Kconfig"
889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890source "arch/arm/mach-ixp4xx/Kconfig"
891
892source "arch/arm/mach-ixp2000/Kconfig"
893
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100894source "arch/arm/mach-ixp23xx/Kconfig"
895
Russell King95b8f202010-01-14 11:43:54 +0000896source "arch/arm/mach-kirkwood/Kconfig"
897
898source "arch/arm/mach-ks8695/Kconfig"
899
900source "arch/arm/mach-lh7a40x/Kconfig"
901
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200902source "arch/arm/mach-loki/Kconfig"
903
Kevin Wells40805942010-07-27 08:49:04 -0700904source "arch/arm/mach-lpc32xx/Kconfig"
905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-msm/Kconfig"
907
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200908source "arch/arm/mach-mv78xx0/Kconfig"
909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700911
Russell King95b8f202010-01-14 11:43:54 +0000912source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800913
Russell King95b8f202010-01-14 11:43:54 +0000914source "arch/arm/mach-nomadik/Kconfig"
915source "arch/arm/plat-nomadik/Kconfig"
916
917source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Russell Kingd91a89102010-02-04 18:13:17 +0000919source "arch/arm/mach-nuc93x/Kconfig"
920
Tony Lindgrend48af152005-07-10 19:58:17 +0100921source "arch/arm/plat-omap/Kconfig"
922
923source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924
Tony Lindgren1dbae812005-11-10 14:26:51 +0000925source "arch/arm/mach-omap2/Kconfig"
926
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400927source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-pxa/Kconfig"
930source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
Russell King95b8f202010-01-14 11:43:54 +0000932source "arch/arm/mach-mmp/Kconfig"
933
934source "arch/arm/mach-realview/Kconfig"
935
936source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300937
Ben Dookscf383672009-11-10 00:14:58 +0000938source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100939source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900940source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100941
viresh kumarcee37e52010-04-01 12:31:05 +0100942source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100943
Hans J. Koch83ef3332010-09-17 18:13:56 +0200944source "arch/arm/plat-tcc/Kconfig"
945
Ben Dooksa21765a2007-02-11 18:31:01 +0100946if ARCH_S3C2410
947source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100949source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900950source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100951source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100952source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100953endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Ben Dooksa08ab632008-10-21 14:06:39 +0100955if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900956source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100957endif
958
Kukjin Kim49b7a492010-09-07 15:47:18 +0900959source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900960
Kukjin Kim550db7f2010-01-29 10:19:26 +0900961source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100962
Byungho Min5a7652f2009-06-23 21:39:42 +0900963source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900964
Kukjin Kim170f4e42010-02-24 16:40:44 +0900965source "arch/arm/mach-s5pv210/Kconfig"
966
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900967source "arch/arm/mach-s5pv310/Kconfig"
968
Russell King882d01f2010-03-02 23:40:15 +0000969source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Russell King882d01f2010-03-02 23:40:15 +0000971source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800972
Erik Gillingc5f80062010-01-21 16:53:02 -0800973source "arch/arm/mach-tegra/Kconfig"
974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100976
Russell King95b8f202010-01-14 11:43:54 +0000977source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978
979source "arch/arm/mach-versatile/Kconfig"
980
Russell Kingceade892010-02-11 21:44:53 +0000981source "arch/arm/mach-vexpress/Kconfig"
982
wanzongshun7ec80dd2008-12-03 03:55:38 +0100983source "arch/arm/mach-w90x900/Kconfig"
984
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985# Definitions to make life easier
986config ARCH_ACORN
987 bool
988
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100989config PLAT_IOP
990 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700991 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100992
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400993config PLAT_ORION
994 bool
995
Eric Miaobd5ce432009-01-20 12:06:01 +0800996config PLAT_PXA
997 bool
998
Russell Kingf4b8b312010-01-14 12:48:06 +0000999config PLAT_VERSATILE
1000 bool
1001
Russell Kinge3887712010-01-14 13:30:16 +00001002config ARM_TIMER_SP804
1003 bool
1004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005source arch/arm/mm/Kconfig
1006
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001007config IWMMXT
1008 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001009 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1010 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001011 help
1012 Enable support for iWMMXt context switching at run time if
1013 running on a CPU that supports it.
1014
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1016config XSCALE_PMU
1017 bool
1018 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1019 default y
1020
Jamie Iles0f4f0672010-02-02 20:23:15 +01001021config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001022 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1023 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001024 default y
1025 bool
1026
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001027if !MMU
1028source "arch/arm/Kconfig-nommu"
1029endif
1030
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001031config ARM_ERRATA_411920
1032 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001033 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001034 help
1035 Invalidation of the Instruction Cache operation can
1036 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1037 It does not affect the MPCore. This option enables the ARM Ltd.
1038 recommended workaround.
1039
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001040config ARM_ERRATA_430973
1041 bool "ARM errata: Stale prediction on replaced interworking branch"
1042 depends on CPU_V7
1043 help
1044 This option enables the workaround for the 430973 Cortex-A8
1045 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1046 interworking branch is replaced with another code sequence at the
1047 same virtual address, whether due to self-modifying code or virtual
1048 to physical address re-mapping, Cortex-A8 does not recover from the
1049 stale interworking branch prediction. This results in Cortex-A8
1050 executing the new code sequence in the incorrect ARM or Thumb state.
1051 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1052 and also flushes the branch target cache at every context switch.
1053 Note that setting specific bits in the ACTLR register may not be
1054 available in non-secure mode.
1055
Catalin Marinas855c5512009-04-30 17:06:15 +01001056config ARM_ERRATA_458693
1057 bool "ARM errata: Processor deadlock when a false hazard is created"
1058 depends on CPU_V7
1059 help
1060 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1061 erratum. For very specific sequences of memory operations, it is
1062 possible for a hazard condition intended for a cache line to instead
1063 be incorrectly associated with a different cache line. This false
1064 hazard might then cause a processor deadlock. The workaround enables
1065 the L1 caching of the NEON accesses and disables the PLD instruction
1066 in the ACTLR register. Note that setting specific bits in the ACTLR
1067 register may not be available in non-secure mode.
1068
Catalin Marinas0516e462009-04-30 17:06:20 +01001069config ARM_ERRATA_460075
1070 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1071 depends on CPU_V7
1072 help
1073 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1074 erratum. Any asynchronous access to the L2 cache may encounter a
1075 situation in which recent store transactions to the L2 cache are lost
1076 and overwritten with stale memory contents from external memory. The
1077 workaround disables the write-allocate mode for the L2 cache via the
1078 ACTLR register. Note that setting specific bits in the ACTLR register
1079 may not be available in non-secure mode.
1080
Will Deacon9f050272010-09-14 09:51:43 +01001081config ARM_ERRATA_742230
1082 bool "ARM errata: DMB operation may be faulty"
1083 depends on CPU_V7 && SMP
1084 help
1085 This option enables the workaround for the 742230 Cortex-A9
1086 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1087 between two write operations may not ensure the correct visibility
1088 ordering of the two writes. This workaround sets a specific bit in
1089 the diagnostic register of the Cortex-A9 which causes the DMB
1090 instruction to behave as a DSB, ensuring the correct behaviour of
1091 the two writes.
1092
Will Deacona672e992010-09-14 09:53:02 +01001093config ARM_ERRATA_742231
1094 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1095 depends on CPU_V7 && SMP
1096 help
1097 This option enables the workaround for the 742231 Cortex-A9
1098 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1099 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1100 accessing some data located in the same cache line, may get corrupted
1101 data due to bad handling of the address hazard when the line gets
1102 replaced from one of the CPUs at the same time as another CPU is
1103 accessing it. This workaround sets specific bits in the diagnostic
1104 register of the Cortex-A9 which reduces the linefill issuing
1105 capabilities of the processor.
1106
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001107config PL310_ERRATA_588369
1108 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1109 depends on CACHE_L2X0 && ARCH_OMAP4
1110 help
1111 The PL310 L2 cache controller implements three types of Clean &
1112 Invalidate maintenance operations: by Physical Address
1113 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1114 They are architecturally defined to behave as the execution of a
1115 clean operation followed immediately by an invalidate operation,
1116 both performing to the same memory location. This functionality
1117 is not correctly implemented in PL310 as clean lines are not
1118 invalidated as a result of these operations. Note that this errata
1119 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001120
1121config ARM_ERRATA_720789
1122 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1123 depends on CPU_V7 && SMP
1124 help
1125 This option enables the workaround for the 720789 Cortex-A9 (prior to
1126 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1127 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1128 As a consequence of this erratum, some TLB entries which should be
1129 invalidated are not, resulting in an incoherency in the system page
1130 tables. The workaround changes the TLB flushing routines to invalidate
1131 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001132
1133config ARM_ERRATA_743622
1134 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1135 depends on CPU_V7
1136 help
1137 This option enables the workaround for the 743622 Cortex-A9
1138 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1139 optimisation in the Cortex-A9 Store Buffer may lead to data
1140 corruption. This workaround sets a specific bit in the diagnostic
1141 register of the Cortex-A9 which disables the Store Buffer
1142 optimisation, preventing the defect from occurring. This has no
1143 visible impact on the overall performance or power consumption of the
1144 processor.
1145
Linus Torvalds1da177e2005-04-16 15:20:36 -07001146endmenu
1147
1148source "arch/arm/common/Kconfig"
1149
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150menu "Bus support"
1151
1152config ARM_AMBA
1153 bool
1154
1155config ISA
1156 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157 help
1158 Find out whether you have ISA slots on your motherboard. ISA is the
1159 name of a bus system, i.e. the way the CPU talks to the other stuff
1160 inside your box. Other bus systems are PCI, EISA, MicroChannel
1161 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1162 newer boards don't support it. If you have ISA, say Y, otherwise N.
1163
Russell King065909b2006-01-04 15:44:16 +00001164# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001165config ISA_DMA
1166 bool
Russell King065909b2006-01-04 15:44:16 +00001167 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168
Russell King065909b2006-01-04 15:44:16 +00001169# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001170config ISA_DMA_API
1171 bool
Al Viro5cae8412005-05-04 05:39:22 +01001172
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001174 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175 help
1176 Find out whether you have a PCI motherboard. PCI is the name of a
1177 bus system, i.e. the way the CPU talks to the other stuff inside
1178 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1179 VESA. If you have PCI, say Y, otherwise N.
1180
Anton Vorontsov52882172010-04-19 13:20:49 +01001181config PCI_DOMAINS
1182 bool
1183 depends on PCI
1184
Matthew Wilcox36e23592007-07-10 10:54:40 -06001185config PCI_SYSCALL
1186 def_bool PCI
1187
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188# Select the host bridge type
1189config PCI_HOST_VIA82C505
1190 bool
1191 depends on PCI && ARCH_SHARK
1192 default y
1193
Mike Rapoporta0113a92007-11-25 08:55:34 +01001194config PCI_HOST_ITE8152
1195 bool
1196 depends on PCI && MACH_ARMCORE
1197 default y
1198 select DMABOUNCE
1199
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200source "drivers/pci/Kconfig"
1201
1202source "drivers/pcmcia/Kconfig"
1203
1204endmenu
1205
1206menu "Kernel Features"
1207
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001208source "kernel/time/Kconfig"
1209
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210config SMP
1211 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001212 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001213 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001214 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1215 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1216 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001217 select USE_GENERIC_SMP_HELPERS
Russell King971acb92010-09-04 08:16:30 +01001218 select HAVE_ARM_SCU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 help
1220 This enables support for systems with more than one CPU. If you have
1221 a system with only one CPU, like most personal computers, say N. If
1222 you have a system with more than one CPU, say Y.
1223
1224 If you say N here, the kernel will run on single and multiprocessor
1225 machines, but will use only one CPU of a multiprocessor machine. If
1226 you say Y here, the kernel will run on many, but not all, single
1227 processor machines. On a single processor machine, the kernel will
1228 run faster if you say N here.
1229
Adrian Bunk03502fa2008-02-03 15:50:21 +02001230 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001231 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001232 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233
1234 If you don't know what to do here, say N.
1235
Russell Kingf00ec482010-09-04 10:47:48 +01001236config SMP_ON_UP
1237 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1238 depends on EXPERIMENTAL
1239 depends on SMP && !XIP && !THUMB2_KERNEL
1240 default y
1241 help
1242 SMP kernels contain instructions which fail on non-SMP processors.
1243 Enabling this option allows the kernel to modify itself to make
1244 these instructions safe. Disabling it allows about 1K of space
1245 savings.
1246
1247 If you don't know what to do here, say Y.
1248
Russell Kinga8cbcd92009-05-16 11:51:14 +01001249config HAVE_ARM_SCU
1250 bool
1251 depends on SMP
1252 help
1253 This option enables support for the ARM system coherency unit
1254
Russell Kingf32f4ce2009-05-16 12:14:21 +01001255config HAVE_ARM_TWD
1256 bool
1257 depends on SMP
1258 help
1259 This options enables support for the ARM timer and watchdog unit
1260
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001261choice
1262 prompt "Memory split"
1263 default VMSPLIT_3G
1264 help
1265 Select the desired split between kernel and user memory.
1266
1267 If you are not absolutely sure what you are doing, leave this
1268 option alone!
1269
1270 config VMSPLIT_3G
1271 bool "3G/1G user/kernel split"
1272 config VMSPLIT_2G
1273 bool "2G/2G user/kernel split"
1274 config VMSPLIT_1G
1275 bool "1G/3G user/kernel split"
1276endchoice
1277
1278config PAGE_OFFSET
1279 hex
1280 default 0x40000000 if VMSPLIT_1G
1281 default 0x80000000 if VMSPLIT_2G
1282 default 0xC0000000
1283
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284config NR_CPUS
1285 int "Maximum number of CPUs (2-32)"
1286 range 2 32
1287 depends on SMP
1288 default "4"
1289
Russell Kinga054a812005-11-02 22:24:33 +00001290config HOTPLUG_CPU
1291 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1292 depends on SMP && HOTPLUG && EXPERIMENTAL
1293 help
1294 Say Y here to experiment with turning CPUs off and on. CPUs
1295 can be controlled through /sys/devices/system/cpu.
1296
Russell King37ee16a2005-11-08 19:08:05 +00001297config LOCAL_TIMERS
1298 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001299 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001300 default y
Russell King971acb92010-09-04 08:16:30 +01001301 select HAVE_ARM_TWD
Russell King37ee16a2005-11-08 19:08:05 +00001302 help
1303 Enable support for local timers on SMP platforms, rather then the
1304 legacy IPI broadcast method. Local timers allows the system
1305 accounting to be spread across the timer interval, preventing a
1306 "thundering herd" at every timer tick.
1307
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001308source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309
Russell Kingf8065812006-03-02 22:41:59 +00001310config HZ
1311 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001312 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001313 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001314 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001315 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001316 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001317 default 100
1318
Catalin Marinas16c79652009-07-24 12:33:02 +01001319config THUMB2_KERNEL
1320 bool "Compile the kernel in Thumb-2 mode"
1321 depends on CPU_V7 && EXPERIMENTAL
1322 select AEABI
1323 select ARM_ASM_UNIFIED
1324 help
1325 By enabling this option, the kernel will be compiled in
1326 Thumb-2 mode. A compiler/assembler that understand the unified
1327 ARM-Thumb syntax is needed.
1328
1329 If unsure, say N.
1330
Catalin Marinas0becb082009-07-24 12:32:53 +01001331config ARM_ASM_UNIFIED
1332 bool
1333
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001334config AEABI
1335 bool "Use the ARM EABI to compile the kernel"
1336 help
1337 This option allows for the kernel to be compiled using the latest
1338 ARM ABI (aka EABI). This is only useful if you are using a user
1339 space environment that is also compiled with EABI.
1340
1341 Since there are major incompatibilities between the legacy ABI and
1342 EABI, especially with regard to structure member alignment, this
1343 option also changes the kernel syscall calling convention to
1344 disambiguate both ABIs and allow for backward compatibility support
1345 (selected with CONFIG_OABI_COMPAT).
1346
1347 To use this you need GCC version 4.0.0 or later.
1348
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001349config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001350 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001351 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001352 default y
1353 help
1354 This option preserves the old syscall interface along with the
1355 new (ARM EABI) one. It also provides a compatibility layer to
1356 intercept syscalls that have structure arguments which layout
1357 in memory differs between the legacy ABI and the new ARM EABI
1358 (only for non "thumb" binaries). This option adds a tiny
1359 overhead to all syscalls and produces a slightly larger kernel.
1360 If you know you'll be using only pure EABI user space then you
1361 can say N here. If this option is not selected and you attempt
1362 to execute a legacy ABI binary then the result will be
1363 UNPREDICTABLE (in fact it can be predicted that it won't work
1364 at all). If in doubt say Y.
1365
Mel Gormaneb335752009-05-13 17:34:48 +01001366config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001367 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001368
Russell King05944d72006-11-30 20:43:51 +00001369config ARCH_SPARSEMEM_ENABLE
1370 bool
1371
Russell King07a2f732008-10-01 21:39:58 +01001372config ARCH_SPARSEMEM_DEFAULT
1373 def_bool ARCH_SPARSEMEM_ENABLE
1374
Russell King05944d72006-11-30 20:43:51 +00001375config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001376 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001377
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001378config HIGHMEM
1379 bool "High Memory Support (EXPERIMENTAL)"
1380 depends on MMU && EXPERIMENTAL
1381 help
1382 The address space of ARM processors is only 4 Gigabytes large
1383 and it has to accommodate user address space, kernel address
1384 space as well as some memory mapped IO. That means that, if you
1385 have a large amount of physical memory and/or IO, not all of the
1386 memory can be "permanently mapped" by the kernel. The physical
1387 memory that is not permanently mapped is called "high memory".
1388
1389 Depending on the selected kernel/user memory split, minimum
1390 vmalloc space and actual amount of RAM, you may not need this
1391 option which should result in a slightly faster kernel.
1392
1393 If unsure, say n.
1394
Russell King65cec8e2009-08-17 20:02:06 +01001395config HIGHPTE
1396 bool "Allocate 2nd-level pagetables from highmem"
1397 depends on HIGHMEM
1398 depends on !OUTER_CACHE
1399
Jamie Iles1b8873a2010-02-02 20:25:44 +01001400config HW_PERF_EVENTS
1401 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001402 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001403 default y
1404 help
1405 Enable hardware performance counter support for perf events. If
1406 disabled, perf events will use software events only.
1407
eric miao354e6f72010-06-25 09:46:09 +01001408config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001409 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001410 help
1411 This enables support for sparse irqs. This is useful in general
1412 as most CPUs have a fairly sparse array of IRQ vectors, which
1413 the irq_desc then maps directly on to. Systems with a high
1414 number of off-chip IRQs will want to treat this as
1415 experimental until they have been independently verified.
1416
Dave Hansen3f22ab22005-06-23 00:07:43 -07001417source "mm/Kconfig"
1418
Magnus Dammc1b2d972010-07-05 10:00:11 +01001419config FORCE_MAX_ZONEORDER
1420 int "Maximum zone order" if ARCH_SHMOBILE
1421 range 11 64 if ARCH_SHMOBILE
1422 default "9" if SA1111
1423 default "11"
1424 help
1425 The kernel memory allocator divides physically contiguous memory
1426 blocks into "zones", where each zone is a power of two number of
1427 pages. This option selects the largest power of two that the kernel
1428 keeps in the memory allocator. If you need to allocate very large
1429 blocks of physically contiguous memory, then you may need to
1430 increase this value.
1431
1432 This config option is actually maximum order plus one. For example,
1433 a value of 11 means that the largest free memory block is 2^10 pages.
1434
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435config LEDS
1436 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001437 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001438 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1440 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001441 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001442 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001443 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 help
1445 If you say Y here, the LEDs on your machine will be used
1446 to provide useful information about your current system status.
1447
1448 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1449 be able to select which LEDs are active using the options below. If
1450 you are compiling a kernel for the EBSA-110 or the LART however, the
1451 red LED will simply flash regularly to indicate that the system is
1452 still functional. It is safe to say Y here if you have a CATS
1453 system, but the driver will do nothing.
1454
1455config LEDS_TIMER
1456 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001457 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1458 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001460 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461 default y if ARCH_EBSA110
1462 help
1463 If you say Y here, one of the system LEDs (the green one on the
1464 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1465 will flash regularly to indicate that the system is still
1466 operational. This is mainly useful to kernel hackers who are
1467 debugging unstable kernels.
1468
1469 The LART uses the same LED for both Timer LED and CPU usage LED
1470 functions. You may choose to use both, but the Timer LED function
1471 will overrule the CPU usage LED.
1472
1473config LEDS_CPU
1474 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001475 !ARCH_OMAP) \
1476 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1477 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 depends on LEDS
1479 help
1480 If you say Y here, the red LED will be used to give a good real
1481 time indication of CPU usage, by lighting whenever the idle task
1482 is not currently executing.
1483
1484 The LART uses the same LED for both Timer LED and CPU usage LED
1485 functions. You may choose to use both, but the Timer LED function
1486 will overrule the CPU usage LED.
1487
1488config ALIGNMENT_TRAP
1489 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001490 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001491 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001492 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001494 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1496 address divisible by 4. On 32-bit ARM processors, these non-aligned
1497 fetch/store instructions will be emulated in software if you say
1498 here, which has a severe performance impact. This is necessary for
1499 correct operation of some network protocols. With an IP-only
1500 configuration it is safe to say N, otherwise say Y.
1501
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001502config UACCESS_WITH_MEMCPY
1503 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1504 depends on MMU && EXPERIMENTAL
1505 default y if CPU_FEROCEON
1506 help
1507 Implement faster copy_to_user and clear_user methods for CPU
1508 cores where a 8-word STM instruction give significantly higher
1509 memory write throughput than a sequence of individual 32bit stores.
1510
1511 A possible side effect is a slight increase in scheduling latency
1512 between threads sharing the same address space if they invoke
1513 such copy operations with large buffers.
1514
1515 However, if the CPU data cache is using a write-allocate mode,
1516 this option is unlikely to provide any performance gain.
1517
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001518config SECCOMP
1519 bool
1520 prompt "Enable seccomp to safely compute untrusted bytecode"
1521 ---help---
1522 This kernel feature is useful for number crunching applications
1523 that may need to compute untrusted bytecode during their
1524 execution. By using pipes or other transports made available to
1525 the process as file descriptors supporting the read/write
1526 syscalls, it's possible to isolate those applications in
1527 their own address space using seccomp. Once seccomp is
1528 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1529 and the task is only allowed to execute a few safe syscalls
1530 defined by each seccomp mode.
1531
Nicolas Pitrec743f382010-05-24 23:55:42 -04001532config CC_STACKPROTECTOR
1533 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1534 help
1535 This option turns on the -fstack-protector GCC feature. This
1536 feature puts, at the beginning of functions, a canary value on
1537 the stack just before the return address, and validates
1538 the value just before actually returning. Stack based buffer
1539 overflows (that need to overwrite this return address) now also
1540 overwrite the canary, which gets detected and the attack is then
1541 neutralized via a kernel panic.
1542 This feature requires gcc version 4.2 or above.
1543
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001544config DEPRECATED_PARAM_STRUCT
1545 bool "Provide old way to pass kernel parameters"
1546 help
1547 This was deprecated in 2001 and announced to live on for 5 years.
1548 Some old boot loaders still use this way.
1549
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550endmenu
1551
1552menu "Boot options"
1553
1554# Compressed boot loader in ROM. Yes, we really want to ask about
1555# TEXT and BSS so we preserve their values in the config files.
1556config ZBOOT_ROM_TEXT
1557 hex "Compressed ROM boot loader base address"
1558 default "0"
1559 help
1560 The physical address at which the ROM-able zImage is to be
1561 placed in the target. Platforms which normally make use of
1562 ROM-able zImage formats normally set this to a suitable
1563 value in their defconfig file.
1564
1565 If ZBOOT_ROM is not enabled, this has no effect.
1566
1567config ZBOOT_ROM_BSS
1568 hex "Compressed ROM boot loader BSS address"
1569 default "0"
1570 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001571 The base address of an area of read/write memory in the target
1572 for the ROM-able zImage which must be available while the
1573 decompressor is running. It must be large enough to hold the
1574 entire decompressed kernel plus an additional 128 KiB.
1575 Platforms which normally make use of ROM-able zImage formats
1576 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001577
1578 If ZBOOT_ROM is not enabled, this has no effect.
1579
1580config ZBOOT_ROM
1581 bool "Compressed boot loader in ROM/flash"
1582 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1583 help
1584 Say Y here if you intend to execute your compressed kernel image
1585 (zImage) directly from ROM or flash. If unsure, say N.
1586
1587config CMDLINE
1588 string "Default kernel command string"
1589 default ""
1590 help
1591 On some architectures (EBSA110 and CATS), there is currently no way
1592 for the boot loader to pass arguments to the kernel. For these
1593 architectures, you should supply some command-line options at build
1594 time by entering them here. As a minimum, you should specify the
1595 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1596
Alexander Holler92d20402010-02-16 19:04:53 +01001597config CMDLINE_FORCE
1598 bool "Always use the default kernel command string"
1599 depends on CMDLINE != ""
1600 help
1601 Always use the default kernel command string, even if the boot
1602 loader passes other arguments to the kernel.
1603 This is useful if you cannot or don't want to change the
1604 command-line options your boot loader passes to the kernel.
1605
1606 If unsure, say N.
1607
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608config XIP_KERNEL
1609 bool "Kernel Execute-In-Place from ROM"
1610 depends on !ZBOOT_ROM
1611 help
1612 Execute-In-Place allows the kernel to run from non-volatile storage
1613 directly addressable by the CPU, such as NOR flash. This saves RAM
1614 space since the text section of the kernel is not loaded from flash
1615 to RAM. Read-write sections, such as the data section and stack,
1616 are still copied to RAM. The XIP kernel is not compressed since
1617 it has to run directly from flash, so it will take more space to
1618 store it. The flash address used to link the kernel object files,
1619 and for storing it, is configuration dependent. Therefore, if you
1620 say Y here, you must know the proper physical address where to
1621 store the kernel image depending on your own flash memory usage.
1622
1623 Also note that the make target becomes "make xipImage" rather than
1624 "make zImage" or "make Image". The final kernel binary to put in
1625 ROM memory will be arch/arm/boot/xipImage.
1626
1627 If unsure, say N.
1628
1629config XIP_PHYS_ADDR
1630 hex "XIP Kernel Physical Location"
1631 depends on XIP_KERNEL
1632 default "0x00080000"
1633 help
1634 This is the physical address in your flash memory the kernel will
1635 be linked for and stored to. This address is dependent on your
1636 own flash usage.
1637
Richard Purdiec587e4a2007-02-06 21:29:00 +01001638config KEXEC
1639 bool "Kexec system call (EXPERIMENTAL)"
1640 depends on EXPERIMENTAL
1641 help
1642 kexec is a system call that implements the ability to shutdown your
1643 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001644 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001645 you can start any kernel with it, not just Linux.
1646
1647 It is an ongoing process to be certain the hardware in a machine
1648 is properly shutdown, so do not be surprised if this code does not
1649 initially work for you. It may help to enable device hotplugging
1650 support.
1651
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001652config ATAGS_PROC
1653 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001654 depends on KEXEC
1655 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001656 help
1657 Should the atags used to boot the kernel be exported in an "atags"
1658 file in procfs. Useful with kexec.
1659
Eric Miaoe69edc792010-07-05 15:56:50 +02001660config AUTO_ZRELADDR
1661 bool "Auto calculation of the decompressed kernel image address"
1662 depends on !ZBOOT_ROM && !ARCH_U300
1663 help
1664 ZRELADDR is the physical address where the decompressed kernel
1665 image will be placed. If AUTO_ZRELADDR is selected, the address
1666 will be determined at run-time by masking the current IP with
1667 0xf8000000. This assumes the zImage being placed in the first 128MB
1668 from start of memory.
1669
Linus Torvalds1da177e2005-04-16 15:20:36 -07001670endmenu
1671
Russell Kingac9d7ef2008-08-18 17:26:00 +01001672menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673
Ben Dooks89c52ed2009-07-30 23:23:24 +01001674if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675
1676source "drivers/cpufreq/Kconfig"
1677
Yong Shen64f102b2010-10-21 21:18:59 +08001678config CPU_FREQ_IMX
1679 tristate "CPUfreq driver for i.MX CPUs"
1680 depends on ARCH_MXC && CPU_FREQ
1681 help
1682 This enables the CPUfreq driver for i.MX CPUs.
1683
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684config CPU_FREQ_SA1100
1685 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686
1687config CPU_FREQ_SA1110
1688 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001689
1690config CPU_FREQ_INTEGRATOR
1691 tristate "CPUfreq driver for ARM Integrator CPUs"
1692 depends on ARCH_INTEGRATOR && CPU_FREQ
1693 default y
1694 help
1695 This enables the CPUfreq driver for ARM Integrator CPUs.
1696
1697 For details, take a look at <file:Documentation/cpu-freq>.
1698
1699 If in doubt, say Y.
1700
Russell King9e2697f2007-12-14 13:30:14 +00001701config CPU_FREQ_PXA
1702 bool
1703 depends on CPU_FREQ && ARCH_PXA && PXA25x
1704 default y
1705 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1706
Mark Brownb3748dd2009-06-15 11:23:20 +01001707config CPU_FREQ_S3C64XX
1708 bool "CPUfreq support for Samsung S3C64XX CPUs"
1709 depends on CPU_FREQ && CPU_S3C6410
1710
Ben Dooks9d56c022009-07-30 23:23:25 +01001711config CPU_FREQ_S3C
1712 bool
1713 help
1714 Internal configuration node for common cpufreq on Samsung SoC
1715
1716config CPU_FREQ_S3C24XX
1717 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1718 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1719 select CPU_FREQ_S3C
1720 help
1721 This enables the CPUfreq driver for the Samsung S3C24XX family
1722 of CPUs.
1723
1724 For details, take a look at <file:Documentation/cpu-freq>.
1725
1726 If in doubt, say N.
1727
1728config CPU_FREQ_S3C24XX_PLL
1729 bool "Support CPUfreq changing of PLL frequency"
1730 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1731 help
1732 Compile in support for changing the PLL frequency from the
1733 S3C24XX series CPUfreq driver. The PLL takes time to settle
1734 after a frequency change, so by default it is not enabled.
1735
1736 This also means that the PLL tables for the selected CPU(s) will
1737 be built which may increase the size of the kernel image.
1738
1739config CPU_FREQ_S3C24XX_DEBUG
1740 bool "Debug CPUfreq Samsung driver core"
1741 depends on CPU_FREQ_S3C24XX
1742 help
1743 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1744
1745config CPU_FREQ_S3C24XX_IODEBUG
1746 bool "Debug CPUfreq Samsung driver IO timing"
1747 depends on CPU_FREQ_S3C24XX
1748 help
1749 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1750
Ben Dookse6d197a2009-07-30 23:23:42 +01001751config CPU_FREQ_S3C24XX_DEBUGFS
1752 bool "Export debugfs for CPUFreq"
1753 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1754 help
1755 Export status information via debugfs.
1756
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757endif
1758
Russell Kingac9d7ef2008-08-18 17:26:00 +01001759source "drivers/cpuidle/Kconfig"
1760
1761endmenu
1762
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763menu "Floating point emulation"
1764
1765comment "At least one emulation must be selected"
1766
1767config FPE_NWFPE
1768 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001769 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 ---help---
1771 Say Y to include the NWFPE floating point emulator in the kernel.
1772 This is necessary to run most binaries. Linux does not currently
1773 support floating point hardware so you need to say Y here even if
1774 your machine has an FPA or floating point co-processor podule.
1775
1776 You may say N here if you are going to load the Acorn FPEmulator
1777 early in the bootup.
1778
1779config FPE_NWFPE_XP
1780 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001781 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782 help
1783 Say Y to include 80-bit support in the kernel floating-point
1784 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1785 Note that gcc does not generate 80-bit operations by default,
1786 so in most cases this option only enlarges the size of the
1787 floating point emulator without any good reason.
1788
1789 You almost surely want to say N here.
1790
1791config FPE_FASTFPE
1792 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001793 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 ---help---
1795 Say Y here to include the FAST floating point emulator in the kernel.
1796 This is an experimental much faster emulator which now also has full
1797 precision for the mantissa. It does not support any exceptions.
1798 It is very simple, and approximately 3-6 times faster than NWFPE.
1799
1800 It should be sufficient for most programs. It may be not suitable
1801 for scientific calculations, but you have to check this for yourself.
1802 If you do not feel you need a faster FP emulation you should better
1803 choose NWFPE.
1804
1805config VFP
1806 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001807 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001808 help
1809 Say Y to include VFP support code in the kernel. This is needed
1810 if your hardware includes a VFP unit.
1811
1812 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1813 release notes and additional status information.
1814
1815 Say N if your target does not have VFP hardware.
1816
Catalin Marinas25ebee02007-09-25 15:22:24 +01001817config VFPv3
1818 bool
1819 depends on VFP
1820 default y if CPU_V7
1821
Catalin Marinasb5872db2008-01-10 19:16:17 +01001822config NEON
1823 bool "Advanced SIMD (NEON) Extension support"
1824 depends on VFPv3 && CPU_V7
1825 help
1826 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1827 Extension.
1828
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829endmenu
1830
1831menu "Userspace binary formats"
1832
1833source "fs/Kconfig.binfmt"
1834
1835config ARTHUR
1836 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001837 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 help
1839 Say Y here to include the kernel code necessary if you want to run
1840 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1841 experimental; if this sounds frightening, say N and sleep in peace.
1842 You can also say M here to compile this support as a module (which
1843 will be called arthur).
1844
1845endmenu
1846
1847menu "Power management options"
1848
Russell Kingeceab4a2005-11-15 11:31:41 +00001849source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850
Johannes Bergf4cb5702007-12-08 02:14:00 +01001851config ARCH_SUSPEND_POSSIBLE
1852 def_bool y
1853
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854endmenu
1855
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001856source "net/Kconfig"
1857
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001858source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859
1860source "fs/Kconfig"
1861
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862source "arch/arm/Kconfig.debug"
1863
1864source "security/Kconfig"
1865
1866source "crypto/Kconfig"
1867
1868source "lib/Kconfig"