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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
Adrian Bunk2064c942008-04-28 23:44:43 +02005 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01006 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08007 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00008 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +01009 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010010 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060011 select HAVE_ARCH_KGDB
Mathieu Desnoyers3f550092008-02-02 15:10:35 -050012 select HAVE_KPROBES if (!XIP_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080013 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040014 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010015 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
16 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053017 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040018 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080019 select HAVE_KERNEL_GZIP
20 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010021 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080022 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010023 select HAVE_PERF_EVENTS
24 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010025 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010026 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 help
28 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000029 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000031 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 Europe. There is an ARM Linux project with a web page at
33 <http://www.arm.linux.org.uk/>.
34
Russell King1a189b92008-04-13 21:41:55 +010035config HAVE_PWM
36 bool
37
Ralf Baechle75e71532007-02-09 17:08:58 +000038config SYS_SUPPORTS_APM_EMULATION
39 bool
40
Russell King112f38a42010-12-15 19:23:07 +000041config HAVE_SCHED_CLOCK
42 bool
43
David Brownell0a938b92007-03-05 00:30:18 -080044config GENERIC_GPIO
45 bool
David Brownell0a938b92007-03-05 00:30:18 -080046
John Stultz5cfc8ee2010-03-24 00:22:36 +000047config ARCH_USES_GETTIMEOFFSET
48 bool
49 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010050
Kevin Hilman0567a0c2007-03-13 20:29:24 +010051config GENERIC_CLOCKEVENTS
52 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010053
Catalin Marinasa8655e82008-02-04 17:30:57 +010054config GENERIC_CLOCKEVENTS_BROADCAST
55 bool
56 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010057 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010058
Linus Walleijbc581772009-09-15 17:30:37 +010059config HAVE_TCM
60 bool
61 select GENERIC_ALLOCATOR
62
Russell Kinge119bff2010-01-10 17:23:29 +000063config HAVE_PROC_CPU
64 bool
65
Al Viro5ea81762007-02-11 15:41:31 +000066config NO_IOPORT
67 bool
Al Viro5ea81762007-02-11 15:41:31 +000068
Linus Torvalds1da177e2005-04-16 15:20:36 -070069config EISA
70 bool
71 ---help---
72 The Extended Industry Standard Architecture (EISA) bus was
73 developed as an open alternative to the IBM MicroChannel bus.
74
75 The EISA bus provided some of the features of the IBM MicroChannel
76 bus while maintaining backward compatibility with cards made for
77 the older ISA bus. The EISA bus saw limited use between 1988 and
78 1995 when it was made obsolete by the PCI bus.
79
80 Say Y here if you are building a kernel for an EISA-based machine.
81
82 Otherwise, say N.
83
84config SBUS
85 bool
86
87config MCA
88 bool
89 help
90 MicroChannel Architecture is found in some IBM PS/2 machines and
91 laptops. It is a bus system similar to PCI or ISA. See
92 <file:Documentation/mca.txt> (and especially the web page given
93 there) before attempting to build an MCA bus kernel.
94
Thomas Gleixner4a2581a2006-07-01 22:30:09 +010095config GENERIC_HARDIRQS
96 bool
97 default y
98
Russell Kingf16fb1e2007-04-28 09:59:37 +010099config STACKTRACE_SUPPORT
100 bool
101 default y
102
Nicolas Pitref76e9152008-04-24 01:31:46 -0400103config HAVE_LATENCYTOP_SUPPORT
104 bool
105 depends on !SMP
106 default y
107
Russell Kingf16fb1e2007-04-28 09:59:37 +0100108config LOCKDEP_SUPPORT
109 bool
110 default y
111
Russell King7ad1bcb2006-08-27 12:07:02 +0100112config TRACE_IRQFLAGS_SUPPORT
113 bool
114 default y
115
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100116config HARDIRQS_SW_RESEND
117 bool
118 default y
119
120config GENERIC_IRQ_PROBE
121 bool
122 default y
123
Nick Piggin95c354f2008-01-30 13:31:20 +0100124config GENERIC_LOCKBREAK
125 bool
126 default y
127 depends on SMP && PREEMPT
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129config RWSEM_GENERIC_SPINLOCK
130 bool
131 default y
132
133config RWSEM_XCHGADD_ALGORITHM
134 bool
135
David Howellsf0d1b0b2006-12-08 02:37:49 -0800136config ARCH_HAS_ILOG2_U32
137 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800138
139config ARCH_HAS_ILOG2_U64
140 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141
Ben Dooks89c52ed2009-07-30 23:23:24 +0100142config ARCH_HAS_CPUFREQ
143 bool
144 help
145 Internal node to signify that the ARCH has CPUFREQ support
146 and that the relevant menu configurations are displayed for
147 it.
148
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100149config ARCH_HAS_CPU_IDLE_WAIT
150 def_bool y
151
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800152config GENERIC_HWEIGHT
153 bool
154 default y
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156config GENERIC_CALIBRATE_DELAY
157 bool
158 default y
159
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100160config ARCH_MAY_HAVE_PC_FDC
161 bool
162
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800163config ZONE_DMA
164 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800166config NEED_DMA_MAP_STATE
167 def_bool y
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config GENERIC_ISA_DMA
170 bool
171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172config FIQ
173 bool
174
Al Viro034d2f52005-12-19 16:27:59 -0500175config ARCH_MTD_XIP
176 bool
177
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100178config GENERIC_HARDIRQS_NO__DO_IRQ
Paulius Zaleckas60a752e2008-06-25 13:33:14 +0100179 def_bool y
180
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100181config ARM_L1_CACHE_SHIFT_6
182 bool
183 help
184 Setting ARM L1 cache line size to 64 Bytes.
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194source "init/Kconfig"
195
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700196source "kernel/Kconfig.freezer"
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198menu "System Type"
199
Hyok S. Choi3c427972009-07-24 12:35:00 +0100200config MMU
201 bool "MMU-based Paged Memory Management Support"
202 default y
203 help
204 Select if you want MMU-based virtualised addressing space
205 support by paged memory management. If unsure, say 'Y'.
206
Russell Kingccf50e22010-03-15 19:03:06 +0000207#
208# The "ARM system type" choice list is ordered alphabetically by option
209# text. Please add new entries in the option alphabetic order.
210#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211choice
212 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000213 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100215config ARCH_AAEC2000
216 bool "Agilent AAEC-2000 based"
Russell Kingc7508152008-10-26 10:55:14 +0000217 select CPU_ARM920T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100218 select ARM_AMBA
David Brownell9483a572008-07-23 21:26:48 -0700219 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000220 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100221 help
222 This enables support for systems based on the Agilent AAEC-2000
223
224config ARCH_INTEGRATOR
225 bool "ARM Ltd. Integrator family"
226 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100227 select ARCH_HAS_CPUFREQ
Russell Kingd72fbdf2008-11-08 20:08:08 +0000228 select COMMON_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000229 select ICST
Russell King13edd862010-01-15 21:49:23 +0000230 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000231 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100232 help
233 Support for ARM's Integrator platform.
234
235config ARCH_REALVIEW
236 bool "ARM Ltd. RealView family"
237 select ARM_AMBA
Russell Kingcf30fb42008-11-08 20:05:55 +0000238 select COMMON_CLKDEV
Russell King1da0c892010-12-15 21:56:47 +0000239 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000240 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100241 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100242 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000243 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000244 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100245 select GPIO_PL061 if GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100246 help
247 This enables support for ARM Ltd RealView boards.
248
249config ARCH_VERSATILE
250 bool "ARM Ltd. Versatile family"
251 select ARM_AMBA
252 select ARM_VIC
Russell King71a06da2008-11-08 20:13:53 +0000253 select COMMON_CLKDEV
Russell King1da0c892010-12-15 21:56:47 +0000254 select HAVE_SCHED_CLOCK
Russell Kingc5a0adb2010-01-16 20:16:10 +0000255 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100256 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100257 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000258 select PLAT_VERSATILE
Russell Kinge3887712010-01-14 13:30:16 +0000259 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260 help
261 This enables support for ARM Ltd Versatile board.
262
Russell Kingceade892010-02-11 21:44:53 +0000263config ARCH_VEXPRESS
264 bool "ARM Ltd. Versatile Express family"
265 select ARCH_WANT_OPTIONAL_GPIOLIB
266 select ARM_AMBA
267 select ARM_TIMER_SP804
268 select COMMON_CLKDEV
269 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000270 select HAVE_CLK
Russell King0af85dd2010-12-15 21:58:50 +0000271 select HAVE_SCHED_CLOCK
Russell Kingceade892010-02-11 21:44:53 +0000272 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 King5b0d4952010-12-15 21:23:13 +0000443 select HAVE_SCHED_CLOCK
Russell King485bdde2008-10-17 14:00:43 +0100444 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100445 help
Russell King3b938be2007-05-12 11:25:44 +0100446 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100447
Saeed Bisharaedabd382009-08-06 15:12:43 +0300448config ARCH_DOVE
449 bool "Marvell Dove"
450 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300451 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300452 select GENERIC_CLOCKEVENTS
453 select PLAT_ORION
454 help
455 Support for the Marvell Dove SoC 88AP510
456
Saeed Bishara651c74c2008-06-22 22:45:06 +0200457config ARCH_KIRKWOOD
458 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200460 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700461 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200462 select GENERIC_CLOCKEVENTS
463 select PLAT_ORION
464 help
465 Support for the following Marvell Kirkwood series SoCs:
466 88F6180, 88F6192 and 88F6281.
467
Russell King788c9702009-04-26 14:21:59 +0100468config ARCH_LOKI
469 bool "Marvell Loki (88RC8480)"
470 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100471 select GENERIC_CLOCKEVENTS
472 select PLAT_ORION
473 help
474 Support for the Marvell Loki (88RC8480) SoC.
475
Kevin Wells40805942010-07-27 08:49:04 -0700476config ARCH_LPC32XX
477 bool "NXP LPC32XX"
478 select CPU_ARM926T
479 select ARCH_REQUIRE_GPIOLIB
480 select HAVE_IDE
481 select ARM_AMBA
482 select USB_ARCH_HAS_OHCI
483 select COMMON_CLKDEV
484 select GENERIC_TIME
485 select GENERIC_CLOCKEVENTS
486 help
487 Support for the NXP LPC32XX family of processors
488
Russell King788c9702009-04-26 14:21:59 +0100489config ARCH_MV78XX0
490 bool "Marvell MV78xx0"
491 select CPU_FEROCEON
492 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700493 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100494 select GENERIC_CLOCKEVENTS
495 select PLAT_ORION
496 help
497 Support for the following Marvell MV78xx0 series SoCs:
498 MV781x0, MV782x0.
499
500config ARCH_ORION5X
501 bool "Marvell Orion"
502 depends on MMU
503 select CPU_FEROCEON
504 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700505 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100506 select GENERIC_CLOCKEVENTS
507 select PLAT_ORION
508 help
509 Support for the following Marvell Orion 5x series SoCs:
510 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
511 Orion-2 (5281), Orion-1-90 (6183).
512
513config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500514 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100515 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100516 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100517 select COMMON_CLKDEV
Russell King788c9702009-04-26 14:21:59 +0100518 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000519 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100520 select TICK_ONESHOT
521 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400522 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100523 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500524 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100525
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100526config ARCH_KS8695
527 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000528 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100529 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000530 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100531 help
532 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
533 System-on-Chip devices.
534
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100535config ARCH_NS9XXX
536 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000537 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100538 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100539 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700540 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100541 help
542 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
543 System.
544
545 <http://www.digi.com/products/microprocessors/index.jsp>
546
Russell King788c9702009-04-26 14:21:59 +0100547config ARCH_W90X900
548 bool "Nuvoton W90X900 CPU"
549 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100550 select ARCH_REQUIRE_GPIOLIB
wanzongshun0e4a34b2009-06-10 15:50:44 +0100551 select COMMON_CLKDEV
wanzongshun58b53692009-08-14 15:36:44 +0100552 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200553 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100554 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
555 At present, the w90x900 has been renamed nuc900, regarding
556 the ARM series product line, you can login the following
557 link address to know more.
558
559 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
560 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400561
wanzongshuna62e9032009-12-31 15:06:05 +0100562config ARCH_NUC93X
563 bool "Nuvoton NUC93X CPU"
564 select CPU_ARM926T
wanzongshuna62e9032009-12-31 15:06:05 +0100565 select COMMON_CLKDEV
566 help
567 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
568 low-power and high performance MPEG-4/JPEG multimedia controller chip.
569
Erik Gillingc5f80062010-01-21 16:53:02 -0800570config ARCH_TEGRA
571 bool "NVIDIA Tegra"
572 select GENERIC_TIME
573 select GENERIC_CLOCKEVENTS
574 select GENERIC_GPIO
575 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000576 select HAVE_SCHED_CLOCK
Colin Crossd8611962010-01-28 16:40:29 -0800577 select COMMON_CLKDEV
Erik Gillingc5f80062010-01-21 16:53:02 -0800578 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700579 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800580 help
581 This enables support for NVIDIA Tegra based systems (Tegra APX,
582 Tegra 6xx and Tegra 2 series).
583
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100584config ARCH_PNX4008
585 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000586 select CPU_ARM926T
Russell King6985a5a2009-11-20 10:32:41 +0000587 select COMMON_CLKDEV
John Stultz5cfc8ee2010-03-24 00:22:36 +0000588 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100589 help
590 This enables support for Philips PNX4008 mobile platform.
591
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700593 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100594 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500595 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100596 select ARCH_HAS_CPUFREQ
Russell King8c3abc72008-11-08 20:25:21 +0000597 select COMMON_CLKDEV
Michael Buesch7444a722008-07-25 01:46:11 -0700598 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100599 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000600 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000601 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800602 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800603 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000604 help
eric miao2c8086a2007-09-11 19:13:17 -0700605 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606
Russell King788c9702009-04-26 14:21:59 +0100607config ARCH_MSM
608 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500609 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800610 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700611 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800612 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800613 Support for Qualcomm MSM/QSD based systems. This runs on the
614 apps processor of the MSM/QSD and depends on a shared memory
615 interface to the modem processor which runs the baseband
616 stack and controls some vital subsystems
617 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800618
Magnus Dammc793c1b2010-02-05 11:14:49 +0000619config ARCH_SHMOBILE
620 bool "Renesas SH-Mobile"
621 help
622 Support for Renesas's SH-Mobile ARM platforms
623
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624config ARCH_RPC
625 bool "RiscPC"
626 select ARCH_ACORN
627 select FIQ
628 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100629 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100630 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000631 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000632 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100633 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000634 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 help
636 On the Acorn Risc-PC, Linux can support the internal IDE disk and
637 CD-ROM interface, serial and parallel port, and the floppy drive.
638
639config ARCH_SA1100
640 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000641 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100642 select ISA
Russell King05944d72006-11-30 20:43:51 +0000643 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500644 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100645 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000646 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100647 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700648 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000649 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100650 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700651 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000652 help
653 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654
655config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900656 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800657 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100658 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700659 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000660 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900661 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700662 help
663 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
664 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000665 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
Ben Dooks63b1f512010-04-30 16:32:26 +0900667 Note, the S3C2416 and the S3C2450 are so close that they even share
668 the same SoC ID code. This means that there is no seperate machine
669 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
670
Ben Dooksa08ab632008-10-21 14:06:39 +0100671config ARCH_S3C64XX
672 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000673 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900674 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900675 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100676 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900677 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000678 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100679 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900680 select ARCH_REQUIRE_GPIOLIB
681 select SAMSUNG_CLKSRC
682 select SAMSUNG_IRQ_VIC_TIMER
683 select SAMSUNG_IRQ_UART
684 select S3C_GPIO_TRACK
685 select S3C_GPIO_PULL_UPDOWN
686 select S3C_GPIO_CFG_S3C24XX
687 select S3C_GPIO_CFG_S3C64XX
688 select S3C_DEV_NAND
689 select USB_ARCH_HAS_OHCI
690 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900691 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900692 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100693 help
694 Samsung S3C64XX series based systems
695
Kukjin Kim49b7a492010-09-07 15:47:18 +0900696config ARCH_S5P64X0
697 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900698 select CPU_V6
699 select GENERIC_GPIO
700 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900701 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900702 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900703 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900704 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900705 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900706 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
707 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900708
Kukjin Kim550db7f2010-01-29 10:19:26 +0900709config ARCH_S5P6442
710 bool "Samsung S5P6442"
711 select CPU_V6
712 select GENERIC_GPIO
713 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900714 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900715 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900716 help
717 Samsung S5P6442 CPU based systems
718
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200719config ARCH_S5PC100
720 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900721 select GENERIC_GPIO
722 select HAVE_CLK
723 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100724 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900725 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900726 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900727 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900728 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900729 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200730 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900731
Kukjin Kim170f4e42010-02-24 16:40:44 +0900732config ARCH_S5PV210
733 bool "Samsung S5PV210/S5PC110"
734 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900735 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900736 select GENERIC_GPIO
737 select HAVE_CLK
738 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900739 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900740 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900741 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900742 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900743 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900744 help
745 Samsung S5PV210/S5PC110 series based systems
746
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900747config ARCH_S5PV310
748 bool "Samsung S5PV310/S5PC210"
749 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900750 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900751 select GENERIC_GPIO
752 select HAVE_CLK
753 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900754 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900755 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900756 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900757 help
758 Samsung S5PV310 series based systems
759
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760config ARCH_SHARK
761 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000762 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100763 select ISA
764 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100765 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100766 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000767 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000768 help
769 Support for the StrongARM based Digital DNARD machine, also known
770 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771
Hans J. Koch83ef3332010-09-17 18:13:56 +0200772config ARCH_TCC_926
773 bool "Telechips TCC ARM926-based systems"
774 select CPU_ARM926T
775 select HAVE_CLK
776 select COMMON_CLKDEV
777 select GENERIC_CLOCKEVENTS
778 help
779 Support for Telechips TCC ARM926-based systems.
780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781config ARCH_LH7A40X
782 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000783 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100784 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000785 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700786 help
787 Say Y here for systems based on one of the Sharp LH7A40X
788 System on a Chip processors. These CPUs include an ARM922T
789 core with a wide array of integrated devices for
790 hand-held and low-power applications.
791
Linus Walleijd98aac72009-04-27 10:21:46 +0100792config ARCH_U300
793 bool "ST-Ericsson U300 Series"
794 depends on MMU
795 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000796 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100797 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100798 select ARM_AMBA
799 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100800 select GENERIC_CLOCKEVENTS
Linus Walleijd98aac72009-04-27 10:21:46 +0100801 select COMMON_CLKDEV
802 select GENERIC_GPIO
803 help
804 Support for ST-Ericsson U300 series mobile platforms.
805
Russell Kingccf50e22010-03-15 19:03:06 +0000806config ARCH_U8500
807 bool "ST-Ericsson U8500 Series"
808 select CPU_V7
809 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000810 select GENERIC_CLOCKEVENTS
811 select COMMON_CLKDEV
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100812 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000813 help
814 Support for ST-Ericsson's Ux500 architecture
815
816config ARCH_NOMADIK
817 bool "STMicroelectronics Nomadik"
818 select ARM_AMBA
819 select ARM_VIC
820 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000821 select COMMON_CLKDEV
Russell Kingccf50e22010-03-15 19:03:06 +0000822 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000823 select ARCH_REQUIRE_GPIOLIB
824 help
825 Support for the Nomadik platform by ST-Ericsson
826
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100827config ARCH_DAVINCI
828 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100829 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700830 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100831 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700832 select HAVE_IDE
Kevin Hilmanc5b736d2009-03-20 17:29:01 -0700833 select COMMON_CLKDEV
David Brownell20e99692009-05-07 09:31:42 -0700834 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530835 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100836 help
837 Support for TI's DaVinci platform.
838
Russell King3b938be2007-05-12 11:25:44 +0100839config ARCH_OMAP
840 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700841 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700842 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100843 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700844 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000845 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800846 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100847 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200848 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100849
viresh kumarcee37e52010-04-01 12:31:05 +0100850config PLAT_SPEAR
851 bool "ST SPEAr"
852 select ARM_AMBA
853 select ARCH_REQUIRE_GPIOLIB
854 select COMMON_CLKDEV
855 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100856 select HAVE_CLK
857 help
858 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860endchoice
861
Russell Kingccf50e22010-03-15 19:03:06 +0000862#
863# This is sorted alphabetically by mach-* pathname. However, plat-*
864# Kconfigs may be included either alphabetically (according to the
865# plat- suffix) or along side the corresponding mach-* source.
866#
Russell King95b8f202010-01-14 11:43:54 +0000867source "arch/arm/mach-aaec2000/Kconfig"
868
869source "arch/arm/mach-at91/Kconfig"
870
871source "arch/arm/mach-bcmring/Kconfig"
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873source "arch/arm/mach-clps711x/Kconfig"
874
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300875source "arch/arm/mach-cns3xxx/Kconfig"
876
Russell King95b8f202010-01-14 11:43:54 +0000877source "arch/arm/mach-davinci/Kconfig"
878
879source "arch/arm/mach-dove/Kconfig"
880
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000881source "arch/arm/mach-ep93xx/Kconfig"
882
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883source "arch/arm/mach-footbridge/Kconfig"
884
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200885source "arch/arm/mach-gemini/Kconfig"
886
Russell King95b8f202010-01-14 11:43:54 +0000887source "arch/arm/mach-h720x/Kconfig"
888
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889source "arch/arm/mach-integrator/Kconfig"
890
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100891source "arch/arm/mach-iop32x/Kconfig"
892
893source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894
Dan Williams285f5fa2006-12-07 02:59:39 +0100895source "arch/arm/mach-iop13xx/Kconfig"
896
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897source "arch/arm/mach-ixp4xx/Kconfig"
898
899source "arch/arm/mach-ixp2000/Kconfig"
900
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100901source "arch/arm/mach-ixp23xx/Kconfig"
902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-kirkwood/Kconfig"
904
905source "arch/arm/mach-ks8695/Kconfig"
906
907source "arch/arm/mach-lh7a40x/Kconfig"
908
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200909source "arch/arm/mach-loki/Kconfig"
910
Kevin Wells40805942010-07-27 08:49:04 -0700911source "arch/arm/mach-lpc32xx/Kconfig"
912
Russell King95b8f202010-01-14 11:43:54 +0000913source "arch/arm/mach-msm/Kconfig"
914
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200915source "arch/arm/mach-mv78xx0/Kconfig"
916
Russell King95b8f202010-01-14 11:43:54 +0000917source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800920
Russell King95b8f202010-01-14 11:43:54 +0000921source "arch/arm/mach-nomadik/Kconfig"
922source "arch/arm/plat-nomadik/Kconfig"
923
924source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925
Russell Kingd91a89102010-02-04 18:13:17 +0000926source "arch/arm/mach-nuc93x/Kconfig"
927
Tony Lindgrend48af152005-07-10 19:58:17 +0100928source "arch/arm/plat-omap/Kconfig"
929
930source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931
Tony Lindgren1dbae812005-11-10 14:26:51 +0000932source "arch/arm/mach-omap2/Kconfig"
933
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400934source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400935
Russell King95b8f202010-01-14 11:43:54 +0000936source "arch/arm/mach-pxa/Kconfig"
937source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-mmp/Kconfig"
940
941source "arch/arm/mach-realview/Kconfig"
942
943source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300944
Ben Dookscf383672009-11-10 00:14:58 +0000945source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100946source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900947source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100948
viresh kumarcee37e52010-04-01 12:31:05 +0100949source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100950
Hans J. Koch83ef3332010-09-17 18:13:56 +0200951source "arch/arm/plat-tcc/Kconfig"
952
Ben Dooksa21765a2007-02-11 18:31:01 +0100953if ARCH_S3C2410
954source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100956source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900957source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100958source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100959source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100960endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Ben Dooksa08ab632008-10-21 14:06:39 +0100962if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900963source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100964endif
965
Kukjin Kim49b7a492010-09-07 15:47:18 +0900966source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900967
Kukjin Kim550db7f2010-01-29 10:19:26 +0900968source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100969
Byungho Min5a7652f2009-06-23 21:39:42 +0900970source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900971
Kukjin Kim170f4e42010-02-24 16:40:44 +0900972source "arch/arm/mach-s5pv210/Kconfig"
973
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900974source "arch/arm/mach-s5pv310/Kconfig"
975
Russell King882d01f2010-03-02 23:40:15 +0000976source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977
Russell King882d01f2010-03-02 23:40:15 +0000978source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800979
Erik Gillingc5f80062010-01-21 16:53:02 -0800980source "arch/arm/mach-tegra/Kconfig"
981
Russell King95b8f202010-01-14 11:43:54 +0000982source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +0100983
Russell King95b8f202010-01-14 11:43:54 +0000984source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985
986source "arch/arm/mach-versatile/Kconfig"
987
Russell Kingceade892010-02-11 21:44:53 +0000988source "arch/arm/mach-vexpress/Kconfig"
989
wanzongshun7ec80dd2008-12-03 03:55:38 +0100990source "arch/arm/mach-w90x900/Kconfig"
991
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992# Definitions to make life easier
993config ARCH_ACORN
994 bool
995
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100996config PLAT_IOP
997 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700998 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +0000999 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001000
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001001config PLAT_ORION
1002 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001003 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001004
Eric Miaobd5ce432009-01-20 12:06:01 +08001005config PLAT_PXA
1006 bool
1007
Russell Kingf4b8b312010-01-14 12:48:06 +00001008config PLAT_VERSATILE
1009 bool
1010
Russell Kinge3887712010-01-14 13:30:16 +00001011config ARM_TIMER_SP804
1012 bool
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014source arch/arm/mm/Kconfig
1015
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001016config IWMMXT
1017 bool "Enable iWMMXt support"
Eric Miao40305a52009-02-26 09:34:35 +08001018 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
1019 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001020 help
1021 Enable support for iWMMXt context switching at run time if
1022 running on a CPU that supports it.
1023
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1025config XSCALE_PMU
1026 bool
1027 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1028 default y
1029
Jamie Iles0f4f0672010-02-02 20:23:15 +01001030config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001031 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1032 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001033 default y
1034 bool
1035
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001036if !MMU
1037source "arch/arm/Kconfig-nommu"
1038endif
1039
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001040config ARM_ERRATA_411920
1041 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001042 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001043 help
1044 Invalidation of the Instruction Cache operation can
1045 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1046 It does not affect the MPCore. This option enables the ARM Ltd.
1047 recommended workaround.
1048
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001049config ARM_ERRATA_430973
1050 bool "ARM errata: Stale prediction on replaced interworking branch"
1051 depends on CPU_V7
1052 help
1053 This option enables the workaround for the 430973 Cortex-A8
1054 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1055 interworking branch is replaced with another code sequence at the
1056 same virtual address, whether due to self-modifying code or virtual
1057 to physical address re-mapping, Cortex-A8 does not recover from the
1058 stale interworking branch prediction. This results in Cortex-A8
1059 executing the new code sequence in the incorrect ARM or Thumb state.
1060 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1061 and also flushes the branch target cache at every context switch.
1062 Note that setting specific bits in the ACTLR register may not be
1063 available in non-secure mode.
1064
Catalin Marinas855c5512009-04-30 17:06:15 +01001065config ARM_ERRATA_458693
1066 bool "ARM errata: Processor deadlock when a false hazard is created"
1067 depends on CPU_V7
1068 help
1069 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1070 erratum. For very specific sequences of memory operations, it is
1071 possible for a hazard condition intended for a cache line to instead
1072 be incorrectly associated with a different cache line. This false
1073 hazard might then cause a processor deadlock. The workaround enables
1074 the L1 caching of the NEON accesses and disables the PLD instruction
1075 in the ACTLR register. Note that setting specific bits in the ACTLR
1076 register may not be available in non-secure mode.
1077
Catalin Marinas0516e462009-04-30 17:06:20 +01001078config ARM_ERRATA_460075
1079 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1080 depends on CPU_V7
1081 help
1082 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1083 erratum. Any asynchronous access to the L2 cache may encounter a
1084 situation in which recent store transactions to the L2 cache are lost
1085 and overwritten with stale memory contents from external memory. The
1086 workaround disables the write-allocate mode for the L2 cache via the
1087 ACTLR register. Note that setting specific bits in the ACTLR register
1088 may not be available in non-secure mode.
1089
Will Deacon9f050272010-09-14 09:51:43 +01001090config ARM_ERRATA_742230
1091 bool "ARM errata: DMB operation may be faulty"
1092 depends on CPU_V7 && SMP
1093 help
1094 This option enables the workaround for the 742230 Cortex-A9
1095 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1096 between two write operations may not ensure the correct visibility
1097 ordering of the two writes. This workaround sets a specific bit in
1098 the diagnostic register of the Cortex-A9 which causes the DMB
1099 instruction to behave as a DSB, ensuring the correct behaviour of
1100 the two writes.
1101
Will Deacona672e992010-09-14 09:53:02 +01001102config ARM_ERRATA_742231
1103 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1104 depends on CPU_V7 && SMP
1105 help
1106 This option enables the workaround for the 742231 Cortex-A9
1107 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1108 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1109 accessing some data located in the same cache line, may get corrupted
1110 data due to bad handling of the address hazard when the line gets
1111 replaced from one of the CPUs at the same time as another CPU is
1112 accessing it. This workaround sets specific bits in the diagnostic
1113 register of the Cortex-A9 which reduces the linefill issuing
1114 capabilities of the processor.
1115
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001116config PL310_ERRATA_588369
1117 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1118 depends on CACHE_L2X0 && ARCH_OMAP4
1119 help
1120 The PL310 L2 cache controller implements three types of Clean &
1121 Invalidate maintenance operations: by Physical Address
1122 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1123 They are architecturally defined to behave as the execution of a
1124 clean operation followed immediately by an invalidate operation,
1125 both performing to the same memory location. This functionality
1126 is not correctly implemented in PL310 as clean lines are not
1127 invalidated as a result of these operations. Note that this errata
1128 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001129
1130config ARM_ERRATA_720789
1131 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1132 depends on CPU_V7 && SMP
1133 help
1134 This option enables the workaround for the 720789 Cortex-A9 (prior to
1135 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1136 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1137 As a consequence of this erratum, some TLB entries which should be
1138 invalidated are not, resulting in an incoherency in the system page
1139 tables. The workaround changes the TLB flushing routines to invalidate
1140 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001141
1142config ARM_ERRATA_743622
1143 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1144 depends on CPU_V7
1145 help
1146 This option enables the workaround for the 743622 Cortex-A9
1147 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1148 optimisation in the Cortex-A9 Store Buffer may lead to data
1149 corruption. This workaround sets a specific bit in the diagnostic
1150 register of the Cortex-A9 which disables the Store Buffer
1151 optimisation, preventing the defect from occurring. This has no
1152 visible impact on the overall performance or power consumption of the
1153 processor.
1154
Linus Torvalds1da177e2005-04-16 15:20:36 -07001155endmenu
1156
1157source "arch/arm/common/Kconfig"
1158
Linus Torvalds1da177e2005-04-16 15:20:36 -07001159menu "Bus support"
1160
1161config ARM_AMBA
1162 bool
1163
1164config ISA
1165 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001166 help
1167 Find out whether you have ISA slots on your motherboard. ISA is the
1168 name of a bus system, i.e. the way the CPU talks to the other stuff
1169 inside your box. Other bus systems are PCI, EISA, MicroChannel
1170 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1171 newer boards don't support it. If you have ISA, say Y, otherwise N.
1172
Russell King065909b2006-01-04 15:44:16 +00001173# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174config ISA_DMA
1175 bool
Russell King065909b2006-01-04 15:44:16 +00001176 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177
Russell King065909b2006-01-04 15:44:16 +00001178# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001179config ISA_DMA_API
1180 bool
Al Viro5cae8412005-05-04 05:39:22 +01001181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182config PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +04001183 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 -07001184 help
1185 Find out whether you have a PCI motherboard. PCI is the name of a
1186 bus system, i.e. the way the CPU talks to the other stuff inside
1187 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1188 VESA. If you have PCI, say Y, otherwise N.
1189
Anton Vorontsov52882172010-04-19 13:20:49 +01001190config PCI_DOMAINS
1191 bool
1192 depends on PCI
1193
Matthew Wilcox36e23592007-07-10 10:54:40 -06001194config PCI_SYSCALL
1195 def_bool PCI
1196
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197# Select the host bridge type
1198config PCI_HOST_VIA82C505
1199 bool
1200 depends on PCI && ARCH_SHARK
1201 default y
1202
Mike Rapoporta0113a92007-11-25 08:55:34 +01001203config PCI_HOST_ITE8152
1204 bool
1205 depends on PCI && MACH_ARMCORE
1206 default y
1207 select DMABOUNCE
1208
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209source "drivers/pci/Kconfig"
1210
1211source "drivers/pcmcia/Kconfig"
1212
1213endmenu
1214
1215menu "Kernel Features"
1216
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001217source "kernel/time/Kconfig"
1218
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219config SMP
1220 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001221 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001222 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001223 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001224 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1225 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1226 ARCH_MSM_SCORPIONMP
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001227 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001228 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229 help
1230 This enables support for systems with more than one CPU. If you have
1231 a system with only one CPU, like most personal computers, say N. If
1232 you have a system with more than one CPU, say Y.
1233
1234 If you say N here, the kernel will run on single and multiprocessor
1235 machines, but will use only one CPU of a multiprocessor machine. If
1236 you say Y here, the kernel will run on many, but not all, single
1237 processor machines. On a single processor machine, the kernel will
1238 run faster if you say N here.
1239
Adrian Bunk03502fa2008-02-03 15:50:21 +02001240 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001242 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243
1244 If you don't know what to do here, say N.
1245
Russell Kingf00ec482010-09-04 10:47:48 +01001246config SMP_ON_UP
1247 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1248 depends on EXPERIMENTAL
1249 depends on SMP && !XIP && !THUMB2_KERNEL
1250 default y
1251 help
1252 SMP kernels contain instructions which fail on non-SMP processors.
1253 Enabling this option allows the kernel to modify itself to make
1254 these instructions safe. Disabling it allows about 1K of space
1255 savings.
1256
1257 If you don't know what to do here, say Y.
1258
Russell Kinga8cbcd92009-05-16 11:51:14 +01001259config HAVE_ARM_SCU
1260 bool
1261 depends on SMP
1262 help
1263 This option enables support for the ARM system coherency unit
1264
Russell Kingf32f4ce2009-05-16 12:14:21 +01001265config HAVE_ARM_TWD
1266 bool
1267 depends on SMP
1268 help
1269 This options enables support for the ARM timer and watchdog unit
1270
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001271choice
1272 prompt "Memory split"
1273 default VMSPLIT_3G
1274 help
1275 Select the desired split between kernel and user memory.
1276
1277 If you are not absolutely sure what you are doing, leave this
1278 option alone!
1279
1280 config VMSPLIT_3G
1281 bool "3G/1G user/kernel split"
1282 config VMSPLIT_2G
1283 bool "2G/2G user/kernel split"
1284 config VMSPLIT_1G
1285 bool "1G/3G user/kernel split"
1286endchoice
1287
1288config PAGE_OFFSET
1289 hex
1290 default 0x40000000 if VMSPLIT_1G
1291 default 0x80000000 if VMSPLIT_2G
1292 default 0xC0000000
1293
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294config NR_CPUS
1295 int "Maximum number of CPUs (2-32)"
1296 range 2 32
1297 depends on SMP
1298 default "4"
1299
Russell Kinga054a812005-11-02 22:24:33 +00001300config HOTPLUG_CPU
1301 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1302 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001303 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001304 help
1305 Say Y here to experiment with turning CPUs off and on. CPUs
1306 can be controlled through /sys/devices/system/cpu.
1307
Russell King37ee16a2005-11-08 19:08:05 +00001308config LOCAL_TIMERS
1309 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001310 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001311 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001312 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001313 help
1314 Enable support for local timers on SMP platforms, rather then the
1315 legacy IPI broadcast method. Local timers allows the system
1316 accounting to be spread across the timer interval, preventing a
1317 "thundering herd" at every timer tick.
1318
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001319source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320
Russell Kingf8065812006-03-02 22:41:59 +00001321config HZ
1322 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001323 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001324 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001325 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001326 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001327 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001328 default 100
1329
Catalin Marinas16c79652009-07-24 12:33:02 +01001330config THUMB2_KERNEL
1331 bool "Compile the kernel in Thumb-2 mode"
1332 depends on CPU_V7 && EXPERIMENTAL
1333 select AEABI
1334 select ARM_ASM_UNIFIED
1335 help
1336 By enabling this option, the kernel will be compiled in
1337 Thumb-2 mode. A compiler/assembler that understand the unified
1338 ARM-Thumb syntax is needed.
1339
1340 If unsure, say N.
1341
Catalin Marinas0becb082009-07-24 12:32:53 +01001342config ARM_ASM_UNIFIED
1343 bool
1344
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001345config AEABI
1346 bool "Use the ARM EABI to compile the kernel"
1347 help
1348 This option allows for the kernel to be compiled using the latest
1349 ARM ABI (aka EABI). This is only useful if you are using a user
1350 space environment that is also compiled with EABI.
1351
1352 Since there are major incompatibilities between the legacy ABI and
1353 EABI, especially with regard to structure member alignment, this
1354 option also changes the kernel syscall calling convention to
1355 disambiguate both ABIs and allow for backward compatibility support
1356 (selected with CONFIG_OABI_COMPAT).
1357
1358 To use this you need GCC version 4.0.0 or later.
1359
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001360config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001361 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001362 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001363 default y
1364 help
1365 This option preserves the old syscall interface along with the
1366 new (ARM EABI) one. It also provides a compatibility layer to
1367 intercept syscalls that have structure arguments which layout
1368 in memory differs between the legacy ABI and the new ARM EABI
1369 (only for non "thumb" binaries). This option adds a tiny
1370 overhead to all syscalls and produces a slightly larger kernel.
1371 If you know you'll be using only pure EABI user space then you
1372 can say N here. If this option is not selected and you attempt
1373 to execute a legacy ABI binary then the result will be
1374 UNPREDICTABLE (in fact it can be predicted that it won't work
1375 at all). If in doubt say Y.
1376
Mel Gormaneb335752009-05-13 17:34:48 +01001377config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001378 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001379
Russell King05944d72006-11-30 20:43:51 +00001380config ARCH_SPARSEMEM_ENABLE
1381 bool
1382
Russell King07a2f732008-10-01 21:39:58 +01001383config ARCH_SPARSEMEM_DEFAULT
1384 def_bool ARCH_SPARSEMEM_ENABLE
1385
Russell King05944d72006-11-30 20:43:51 +00001386config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001387 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001388
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001389config HIGHMEM
1390 bool "High Memory Support (EXPERIMENTAL)"
1391 depends on MMU && EXPERIMENTAL
1392 help
1393 The address space of ARM processors is only 4 Gigabytes large
1394 and it has to accommodate user address space, kernel address
1395 space as well as some memory mapped IO. That means that, if you
1396 have a large amount of physical memory and/or IO, not all of the
1397 memory can be "permanently mapped" by the kernel. The physical
1398 memory that is not permanently mapped is called "high memory".
1399
1400 Depending on the selected kernel/user memory split, minimum
1401 vmalloc space and actual amount of RAM, you may not need this
1402 option which should result in a slightly faster kernel.
1403
1404 If unsure, say n.
1405
Russell King65cec8e2009-08-17 20:02:06 +01001406config HIGHPTE
1407 bool "Allocate 2nd-level pagetables from highmem"
1408 depends on HIGHMEM
1409 depends on !OUTER_CACHE
1410
Jamie Iles1b8873a2010-02-02 20:25:44 +01001411config HW_PERF_EVENTS
1412 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001413 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001414 default y
1415 help
1416 Enable hardware performance counter support for perf events. If
1417 disabled, perf events will use software events only.
1418
eric miao354e6f72010-06-25 09:46:09 +01001419config SPARSE_IRQ
eric miaoc1ba6ba2010-07-22 09:55:53 +01001420 def_bool n
eric miao354e6f72010-06-25 09:46:09 +01001421 help
1422 This enables support for sparse irqs. This is useful in general
1423 as most CPUs have a fairly sparse array of IRQ vectors, which
1424 the irq_desc then maps directly on to. Systems with a high
1425 number of off-chip IRQs will want to treat this as
1426 experimental until they have been independently verified.
1427
Dave Hansen3f22ab22005-06-23 00:07:43 -07001428source "mm/Kconfig"
1429
Magnus Dammc1b2d972010-07-05 10:00:11 +01001430config FORCE_MAX_ZONEORDER
1431 int "Maximum zone order" if ARCH_SHMOBILE
1432 range 11 64 if ARCH_SHMOBILE
1433 default "9" if SA1111
1434 default "11"
1435 help
1436 The kernel memory allocator divides physically contiguous memory
1437 blocks into "zones", where each zone is a power of two number of
1438 pages. This option selects the largest power of two that the kernel
1439 keeps in the memory allocator. If you need to allocate very large
1440 blocks of physically contiguous memory, then you may need to
1441 increase this value.
1442
1443 This config option is actually maximum order plus one. For example,
1444 a value of 11 means that the largest free memory block is 2^10 pages.
1445
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446config LEDS
1447 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001448 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001449 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1451 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001452 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001453 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001454 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001455 help
1456 If you say Y here, the LEDs on your machine will be used
1457 to provide useful information about your current system status.
1458
1459 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1460 be able to select which LEDs are active using the options below. If
1461 you are compiling a kernel for the EBSA-110 or the LART however, the
1462 red LED will simply flash regularly to indicate that the system is
1463 still functional. It is safe to say Y here if you have a CATS
1464 system, but the driver will do nothing.
1465
1466config LEDS_TIMER
1467 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001468 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1469 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001471 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 default y if ARCH_EBSA110
1473 help
1474 If you say Y here, one of the system LEDs (the green one on the
1475 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1476 will flash regularly to indicate that the system is still
1477 operational. This is mainly useful to kernel hackers who are
1478 debugging unstable kernels.
1479
1480 The LART uses the same LED for both Timer LED and CPU usage LED
1481 functions. You may choose to use both, but the Timer LED function
1482 will overrule the CPU usage LED.
1483
1484config LEDS_CPU
1485 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001486 !ARCH_OMAP) \
1487 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1488 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001489 depends on LEDS
1490 help
1491 If you say Y here, the red LED will be used to give a good real
1492 time indication of CPU usage, by lighting whenever the idle task
1493 is not currently executing.
1494
1495 The LART uses the same LED for both Timer LED and CPU usage LED
1496 functions. You may choose to use both, but the Timer LED function
1497 will overrule the CPU usage LED.
1498
1499config ALIGNMENT_TRAP
1500 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001501 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001503 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001505 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1507 address divisible by 4. On 32-bit ARM processors, these non-aligned
1508 fetch/store instructions will be emulated in software if you say
1509 here, which has a severe performance impact. This is necessary for
1510 correct operation of some network protocols. With an IP-only
1511 configuration it is safe to say N, otherwise say Y.
1512
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001513config UACCESS_WITH_MEMCPY
1514 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1515 depends on MMU && EXPERIMENTAL
1516 default y if CPU_FEROCEON
1517 help
1518 Implement faster copy_to_user and clear_user methods for CPU
1519 cores where a 8-word STM instruction give significantly higher
1520 memory write throughput than a sequence of individual 32bit stores.
1521
1522 A possible side effect is a slight increase in scheduling latency
1523 between threads sharing the same address space if they invoke
1524 such copy operations with large buffers.
1525
1526 However, if the CPU data cache is using a write-allocate mode,
1527 this option is unlikely to provide any performance gain.
1528
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001529config SECCOMP
1530 bool
1531 prompt "Enable seccomp to safely compute untrusted bytecode"
1532 ---help---
1533 This kernel feature is useful for number crunching applications
1534 that may need to compute untrusted bytecode during their
1535 execution. By using pipes or other transports made available to
1536 the process as file descriptors supporting the read/write
1537 syscalls, it's possible to isolate those applications in
1538 their own address space using seccomp. Once seccomp is
1539 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1540 and the task is only allowed to execute a few safe syscalls
1541 defined by each seccomp mode.
1542
Nicolas Pitrec743f382010-05-24 23:55:42 -04001543config CC_STACKPROTECTOR
1544 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1545 help
1546 This option turns on the -fstack-protector GCC feature. This
1547 feature puts, at the beginning of functions, a canary value on
1548 the stack just before the return address, and validates
1549 the value just before actually returning. Stack based buffer
1550 overflows (that need to overwrite this return address) now also
1551 overwrite the canary, which gets detected and the attack is then
1552 neutralized via a kernel panic.
1553 This feature requires gcc version 4.2 or above.
1554
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001555config DEPRECATED_PARAM_STRUCT
1556 bool "Provide old way to pass kernel parameters"
1557 help
1558 This was deprecated in 2001 and announced to live on for 5 years.
1559 Some old boot loaders still use this way.
1560
Linus Torvalds1da177e2005-04-16 15:20:36 -07001561endmenu
1562
1563menu "Boot options"
1564
1565# Compressed boot loader in ROM. Yes, we really want to ask about
1566# TEXT and BSS so we preserve their values in the config files.
1567config ZBOOT_ROM_TEXT
1568 hex "Compressed ROM boot loader base address"
1569 default "0"
1570 help
1571 The physical address at which the ROM-able zImage is to be
1572 placed in the target. Platforms which normally make use of
1573 ROM-able zImage formats normally set this to a suitable
1574 value in their defconfig file.
1575
1576 If ZBOOT_ROM is not enabled, this has no effect.
1577
1578config ZBOOT_ROM_BSS
1579 hex "Compressed ROM boot loader BSS address"
1580 default "0"
1581 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001582 The base address of an area of read/write memory in the target
1583 for the ROM-able zImage which must be available while the
1584 decompressor is running. It must be large enough to hold the
1585 entire decompressed kernel plus an additional 128 KiB.
1586 Platforms which normally make use of ROM-able zImage formats
1587 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001588
1589 If ZBOOT_ROM is not enabled, this has no effect.
1590
1591config ZBOOT_ROM
1592 bool "Compressed boot loader in ROM/flash"
1593 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1594 help
1595 Say Y here if you intend to execute your compressed kernel image
1596 (zImage) directly from ROM or flash. If unsure, say N.
1597
1598config CMDLINE
1599 string "Default kernel command string"
1600 default ""
1601 help
1602 On some architectures (EBSA110 and CATS), there is currently no way
1603 for the boot loader to pass arguments to the kernel. For these
1604 architectures, you should supply some command-line options at build
1605 time by entering them here. As a minimum, you should specify the
1606 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1607
Alexander Holler92d20402010-02-16 19:04:53 +01001608config CMDLINE_FORCE
1609 bool "Always use the default kernel command string"
1610 depends on CMDLINE != ""
1611 help
1612 Always use the default kernel command string, even if the boot
1613 loader passes other arguments to the kernel.
1614 This is useful if you cannot or don't want to change the
1615 command-line options your boot loader passes to the kernel.
1616
1617 If unsure, say N.
1618
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619config XIP_KERNEL
1620 bool "Kernel Execute-In-Place from ROM"
1621 depends on !ZBOOT_ROM
1622 help
1623 Execute-In-Place allows the kernel to run from non-volatile storage
1624 directly addressable by the CPU, such as NOR flash. This saves RAM
1625 space since the text section of the kernel is not loaded from flash
1626 to RAM. Read-write sections, such as the data section and stack,
1627 are still copied to RAM. The XIP kernel is not compressed since
1628 it has to run directly from flash, so it will take more space to
1629 store it. The flash address used to link the kernel object files,
1630 and for storing it, is configuration dependent. Therefore, if you
1631 say Y here, you must know the proper physical address where to
1632 store the kernel image depending on your own flash memory usage.
1633
1634 Also note that the make target becomes "make xipImage" rather than
1635 "make zImage" or "make Image". The final kernel binary to put in
1636 ROM memory will be arch/arm/boot/xipImage.
1637
1638 If unsure, say N.
1639
1640config XIP_PHYS_ADDR
1641 hex "XIP Kernel Physical Location"
1642 depends on XIP_KERNEL
1643 default "0x00080000"
1644 help
1645 This is the physical address in your flash memory the kernel will
1646 be linked for and stored to. This address is dependent on your
1647 own flash usage.
1648
Richard Purdiec587e4a2007-02-06 21:29:00 +01001649config KEXEC
1650 bool "Kexec system call (EXPERIMENTAL)"
1651 depends on EXPERIMENTAL
1652 help
1653 kexec is a system call that implements the ability to shutdown your
1654 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001655 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001656 you can start any kernel with it, not just Linux.
1657
1658 It is an ongoing process to be certain the hardware in a machine
1659 is properly shutdown, so do not be surprised if this code does not
1660 initially work for you. It may help to enable device hotplugging
1661 support.
1662
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001663config ATAGS_PROC
1664 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001665 depends on KEXEC
1666 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001667 help
1668 Should the atags used to boot the kernel be exported in an "atags"
1669 file in procfs. Useful with kexec.
1670
Eric Miaoe69edc792010-07-05 15:56:50 +02001671config AUTO_ZRELADDR
1672 bool "Auto calculation of the decompressed kernel image address"
1673 depends on !ZBOOT_ROM && !ARCH_U300
1674 help
1675 ZRELADDR is the physical address where the decompressed kernel
1676 image will be placed. If AUTO_ZRELADDR is selected, the address
1677 will be determined at run-time by masking the current IP with
1678 0xf8000000. This assumes the zImage being placed in the first 128MB
1679 from start of memory.
1680
Linus Torvalds1da177e2005-04-16 15:20:36 -07001681endmenu
1682
Russell Kingac9d7ef2008-08-18 17:26:00 +01001683menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001684
Ben Dooks89c52ed2009-07-30 23:23:24 +01001685if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686
1687source "drivers/cpufreq/Kconfig"
1688
Yong Shen64f102b2010-10-21 21:18:59 +08001689config CPU_FREQ_IMX
1690 tristate "CPUfreq driver for i.MX CPUs"
1691 depends on ARCH_MXC && CPU_FREQ
1692 help
1693 This enables the CPUfreq driver for i.MX CPUs.
1694
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695config CPU_FREQ_SA1100
1696 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001697
1698config CPU_FREQ_SA1110
1699 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001700
1701config CPU_FREQ_INTEGRATOR
1702 tristate "CPUfreq driver for ARM Integrator CPUs"
1703 depends on ARCH_INTEGRATOR && CPU_FREQ
1704 default y
1705 help
1706 This enables the CPUfreq driver for ARM Integrator CPUs.
1707
1708 For details, take a look at <file:Documentation/cpu-freq>.
1709
1710 If in doubt, say Y.
1711
Russell King9e2697f2007-12-14 13:30:14 +00001712config CPU_FREQ_PXA
1713 bool
1714 depends on CPU_FREQ && ARCH_PXA && PXA25x
1715 default y
1716 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1717
Mark Brownb3748dd2009-06-15 11:23:20 +01001718config CPU_FREQ_S3C64XX
1719 bool "CPUfreq support for Samsung S3C64XX CPUs"
1720 depends on CPU_FREQ && CPU_S3C6410
1721
Ben Dooks9d56c022009-07-30 23:23:25 +01001722config CPU_FREQ_S3C
1723 bool
1724 help
1725 Internal configuration node for common cpufreq on Samsung SoC
1726
1727config CPU_FREQ_S3C24XX
1728 bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1729 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1730 select CPU_FREQ_S3C
1731 help
1732 This enables the CPUfreq driver for the Samsung S3C24XX family
1733 of CPUs.
1734
1735 For details, take a look at <file:Documentation/cpu-freq>.
1736
1737 If in doubt, say N.
1738
1739config CPU_FREQ_S3C24XX_PLL
1740 bool "Support CPUfreq changing of PLL frequency"
1741 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1742 help
1743 Compile in support for changing the PLL frequency from the
1744 S3C24XX series CPUfreq driver. The PLL takes time to settle
1745 after a frequency change, so by default it is not enabled.
1746
1747 This also means that the PLL tables for the selected CPU(s) will
1748 be built which may increase the size of the kernel image.
1749
1750config CPU_FREQ_S3C24XX_DEBUG
1751 bool "Debug CPUfreq Samsung driver core"
1752 depends on CPU_FREQ_S3C24XX
1753 help
1754 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1755
1756config CPU_FREQ_S3C24XX_IODEBUG
1757 bool "Debug CPUfreq Samsung driver IO timing"
1758 depends on CPU_FREQ_S3C24XX
1759 help
1760 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1761
Ben Dookse6d197a2009-07-30 23:23:42 +01001762config CPU_FREQ_S3C24XX_DEBUGFS
1763 bool "Export debugfs for CPUFreq"
1764 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1765 help
1766 Export status information via debugfs.
1767
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768endif
1769
Russell Kingac9d7ef2008-08-18 17:26:00 +01001770source "drivers/cpuidle/Kconfig"
1771
1772endmenu
1773
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774menu "Floating point emulation"
1775
1776comment "At least one emulation must be selected"
1777
1778config FPE_NWFPE
1779 bool "NWFPE math emulation"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001780 depends on !AEABI || OABI_COMPAT
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 ---help---
1782 Say Y to include the NWFPE floating point emulator in the kernel.
1783 This is necessary to run most binaries. Linux does not currently
1784 support floating point hardware so you need to say Y here even if
1785 your machine has an FPA or floating point co-processor podule.
1786
1787 You may say N here if you are going to load the Acorn FPEmulator
1788 early in the bootup.
1789
1790config FPE_NWFPE_XP
1791 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001792 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 help
1794 Say Y to include 80-bit support in the kernel floating-point
1795 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1796 Note that gcc does not generate 80-bit operations by default,
1797 so in most cases this option only enlarges the size of the
1798 floating point emulator without any good reason.
1799
1800 You almost surely want to say N here.
1801
1802config FPE_FASTFPE
1803 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001804 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 ---help---
1806 Say Y here to include the FAST floating point emulator in the kernel.
1807 This is an experimental much faster emulator which now also has full
1808 precision for the mantissa. It does not support any exceptions.
1809 It is very simple, and approximately 3-6 times faster than NWFPE.
1810
1811 It should be sufficient for most programs. It may be not suitable
1812 for scientific calculations, but you have to check this for yourself.
1813 If you do not feel you need a faster FP emulation you should better
1814 choose NWFPE.
1815
1816config VFP
1817 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001818 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819 help
1820 Say Y to include VFP support code in the kernel. This is needed
1821 if your hardware includes a VFP unit.
1822
1823 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1824 release notes and additional status information.
1825
1826 Say N if your target does not have VFP hardware.
1827
Catalin Marinas25ebee02007-09-25 15:22:24 +01001828config VFPv3
1829 bool
1830 depends on VFP
1831 default y if CPU_V7
1832
Catalin Marinasb5872db2008-01-10 19:16:17 +01001833config NEON
1834 bool "Advanced SIMD (NEON) Extension support"
1835 depends on VFPv3 && CPU_V7
1836 help
1837 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1838 Extension.
1839
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840endmenu
1841
1842menu "Userspace binary formats"
1843
1844source "fs/Kconfig.binfmt"
1845
1846config ARTHUR
1847 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001848 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849 help
1850 Say Y here to include the kernel code necessary if you want to run
1851 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1852 experimental; if this sounds frightening, say N and sleep in peace.
1853 You can also say M here to compile this support as a module (which
1854 will be called arthur).
1855
1856endmenu
1857
1858menu "Power management options"
1859
Russell Kingeceab4a2005-11-15 11:31:41 +00001860source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861
Johannes Bergf4cb5702007-12-08 02:14:00 +01001862config ARCH_SUSPEND_POSSIBLE
1863 def_bool y
1864
Linus Torvalds1da177e2005-04-16 15:20:36 -07001865endmenu
1866
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001867source "net/Kconfig"
1868
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001869source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001870
1871source "fs/Kconfig"
1872
Linus Torvalds1da177e2005-04-16 15:20:36 -07001873source "arch/arm/Kconfig.debug"
1874
1875source "security/Kconfig"
1876
1877source "crypto/Kconfig"
1878
1879source "lib/Kconfig"