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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Will Deacond4c7b1f2010-11-04 18:24:22 +010010 select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Dave Martined7c84d2010-11-29 19:43:29 +010013 select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Will Deacon19852e52010-09-03 10:44:33 +010027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 help
32 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000033 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 Europe. There is an ARM Linux project with a web page at
37 <http://www.arm.linux.org.uk/>.
38
Russell King1a189b92008-04-13 21:41:55 +010039config HAVE_PWM
40 bool
41
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010042config MIGHT_HAVE_PCI
43 bool
44
Ralf Baechle75e71532007-02-09 17:08:58 +000045config SYS_SUPPORTS_APM_EMULATION
46 bool
47
Russell King112f38a42010-12-15 19:23:07 +000048config HAVE_SCHED_CLOCK
49 bool
50
David Brownell0a938b92007-03-05 00:30:18 -080051config GENERIC_GPIO
52 bool
David Brownell0a938b92007-03-05 00:30:18 -080053
John Stultz5cfc8ee2010-03-24 00:22:36 +000054config ARCH_USES_GETTIMEOFFSET
55 bool
56 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010057
Kevin Hilman0567a0c2007-03-13 20:29:24 +010058config GENERIC_CLOCKEVENTS
59 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010060
Catalin Marinasa8655e82008-02-04 17:30:57 +010061config GENERIC_CLOCKEVENTS_BROADCAST
62 bool
63 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010064 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010065
Linus Walleijbc581772009-09-15 17:30:37 +010066config HAVE_TCM
67 bool
68 select GENERIC_ALLOCATOR
69
Russell Kinge119bff2010-01-10 17:23:29 +000070config HAVE_PROC_CPU
71 bool
72
Al Viro5ea81762007-02-11 15:41:31 +000073config NO_IOPORT
74 bool
Al Viro5ea81762007-02-11 15:41:31 +000075
Linus Torvalds1da177e2005-04-16 15:20:36 -070076config EISA
77 bool
78 ---help---
79 The Extended Industry Standard Architecture (EISA) bus was
80 developed as an open alternative to the IBM MicroChannel bus.
81
82 The EISA bus provided some of the features of the IBM MicroChannel
83 bus while maintaining backward compatibility with cards made for
84 the older ISA bus. The EISA bus saw limited use between 1988 and
85 1995 when it was made obsolete by the PCI bus.
86
87 Say Y here if you are building a kernel for an EISA-based machine.
88
89 Otherwise, say N.
90
91config SBUS
92 bool
93
94config MCA
95 bool
96 help
97 MicroChannel Architecture is found in some IBM PS/2 machines and
98 laptops. It is a bus system similar to PCI or ISA. See
99 <file:Documentation/mca.txt> (and especially the web page given
100 there) before attempting to build an MCA bus kernel.
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
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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100228 select CLKDEV_LOOKUP
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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100238 select CLKDEV_LOOKUP
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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100253 select CLKDEV_LOOKUP
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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100268 select CLKDEV_LOOKUP
Russell Kingceade892010-02-11 21:44:53 +0000269 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
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100290 select CLKDEV_LOOKUP
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
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100308 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400309 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300310 help
311 Support for Cavium Networks CNS3XXX platform.
312
Russell King788c9702009-04-26 14:21:59 +0100313config ARCH_GEMINI
314 bool "Cortina Systems Gemini"
315 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100316 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000317 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100318 help
319 Support for the Cortina Systems Gemini family SoCs
320
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321config ARCH_EBSA110
322 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000323 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100324 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000325 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000326 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 help
328 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000329 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 Ethernet interface, two PCMCIA sockets, two serial ports and a
331 parallel port.
332
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000333config ARCH_EP93XX
334 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000336 select ARM_AMBA
337 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100338 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700339 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100340 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000341 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000342 help
343 This enables support for the Cirrus EP93xx series of CPUs.
344
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345config ARCH_FOOTBRIDGE
346 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000347 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 select FOOTBRIDGE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000349 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000350 help
351 Support for systems based on the DC21285 companion chip
352 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
Russell King788c9702009-04-26 14:21:59 +0100354config ARCH_MXC
355 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100356 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100357 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100358 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100359 help
360 Support for Freescale MXC/iMX-based family of processors
361
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800362config ARCH_MXS
363 bool "Freescale MXS-based"
364 select GENERIC_CLOCKEVENTS
365 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100366 select CLKDEV_LOOKUP
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800367 help
368 Support for Freescale MXS-based family of processors
369
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100370config ARCH_STMP3XXX
371 bool "Freescale STMP3xxx"
372 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100373 select CLKDEV_LOOKUP
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100374 select ARCH_REQUIRE_GPIOLIB
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100375 select GENERIC_CLOCKEVENTS
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100376 select USB_ARCH_HAS_EHCI
377 help
378 Support for systems based on the Freescale 3xxx CPUs.
379
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380config ARCH_NETX
381 bool "Hilscher NetX based"
Russell Kingc7508152008-10-26 10:55:14 +0000382 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100384 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000385 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100386 This enables support for systems based on the Hilscher NetX Soc
387
388config ARCH_H720X
389 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000390 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100391 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000392 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100393 help
394 This enables support for systems based on the Hynix HMS720x
395
Russell King3b938be2007-05-12 11:25:44 +0100396config ARCH_IOP13XX
397 bool "IOP13xx-based"
398 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100400 select PLAT_IOP
401 select PCI
402 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100403 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100404 help
405 Support for Intel's IOP13XX (XScale) family of processors.
406
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100407config ARCH_IOP32X
408 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100409 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000410 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100411 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100412 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100413 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000414 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100415 Support for Intel's 80219 and IOP32X (XScale) family of
416 processors.
417
418config ARCH_IOP33X
419 bool "IOP33x-based"
420 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000421 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100422 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100423 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100424 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100425 help
426 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
Russell King3b938be2007-05-12 11:25:44 +0100428config ARCH_IXP23XX
429 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100430 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100432 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000433 select ARCH_USES_GETTIMEOFFSET
Dan Williams285f5fa2006-12-07 02:59:39 +0100434 help
Russell King3b938be2007-05-12 11:25:44 +0100435 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
437config ARCH_IXP2000
438 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100439 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000440 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100441 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000442 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000443 help
444 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
Russell King3b938be2007-05-12 11:25:44 +0100446config ARCH_IXP4XX
447 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100448 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000449 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100450 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100451 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000452 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100453 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100454 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100455 help
Russell King3b938be2007-05-12 11:25:44 +0100456 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100457
Saeed Bisharaedabd382009-08-06 15:12:43 +0300458config ARCH_DOVE
459 bool "Marvell Dove"
460 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300461 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300462 select GENERIC_CLOCKEVENTS
463 select PLAT_ORION
464 help
465 Support for the Marvell Dove SoC 88AP510
466
Saeed Bishara651c74c2008-06-22 22:45:06 +0200467config ARCH_KIRKWOOD
468 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200470 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700471 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200472 select GENERIC_CLOCKEVENTS
473 select PLAT_ORION
474 help
475 Support for the following Marvell Kirkwood series SoCs:
476 88F6180, 88F6192 and 88F6281.
477
Russell King788c9702009-04-26 14:21:59 +0100478config ARCH_LOKI
479 bool "Marvell Loki (88RC8480)"
480 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100481 select GENERIC_CLOCKEVENTS
482 select PLAT_ORION
483 help
484 Support for the Marvell Loki (88RC8480) SoC.
485
Kevin Wells40805942010-07-27 08:49:04 -0700486config ARCH_LPC32XX
487 bool "NXP LPC32XX"
488 select CPU_ARM926T
489 select ARCH_REQUIRE_GPIOLIB
490 select HAVE_IDE
491 select ARM_AMBA
492 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100493 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700494 select GENERIC_TIME
495 select GENERIC_CLOCKEVENTS
496 help
497 Support for the NXP LPC32XX family of processors
498
Russell King788c9702009-04-26 14:21:59 +0100499config ARCH_MV78XX0
500 bool "Marvell MV78xx0"
501 select CPU_FEROCEON
502 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700503 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100504 select GENERIC_CLOCKEVENTS
505 select PLAT_ORION
506 help
507 Support for the following Marvell MV78xx0 series SoCs:
508 MV781x0, MV782x0.
509
510config ARCH_ORION5X
511 bool "Marvell Orion"
512 depends on MMU
513 select CPU_FEROCEON
514 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700515 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100516 select GENERIC_CLOCKEVENTS
517 select PLAT_ORION
518 help
519 Support for the following Marvell Orion 5x series SoCs:
520 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
521 Orion-2 (5281), Orion-1-90 (6183).
522
523config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500524 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100525 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100526 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100527 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100528 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000529 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100530 select TICK_ONESHOT
531 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400532 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100533 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500534 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100535
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100536config ARCH_KS8695
537 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000538 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100539 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000540 select ARCH_USES_GETTIMEOFFSET
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100541 help
542 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
543 System-on-Chip devices.
544
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100545config ARCH_NS9XXX
546 bool "NetSilicon NS9xxx"
Russell Kingc7508152008-10-26 10:55:14 +0000547 select CPU_ARM926T
Uwe Kleine-König689f2a02007-09-30 20:35:09 +0100548 select GENERIC_GPIO
Uwe Kleine-Königc0bb87f2007-09-30 20:36:00 +0100549 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700550 select HAVE_CLK
Uwe Kleine-König9918cda2007-02-16 15:36:55 +0100551 help
552 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
553 System.
554
555 <http://www.digi.com/products/microprocessors/index.jsp>
556
Russell King788c9702009-04-26 14:21:59 +0100557config ARCH_W90X900
558 bool "Nuvoton W90X900 CPU"
559 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100560 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100561 select CLKDEV_LOOKUP
wanzongshun58b53692009-08-14 15:36:44 +0100562 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200563 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100564 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
565 At present, the w90x900 has been renamed nuc900, regarding
566 the ARM series product line, you can login the following
567 link address to know more.
568
569 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
570 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400571
wanzongshuna62e9032009-12-31 15:06:05 +0100572config ARCH_NUC93X
573 bool "Nuvoton NUC93X CPU"
574 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100575 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100576 help
577 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
578 low-power and high performance MPEG-4/JPEG multimedia controller chip.
579
Erik Gillingc5f80062010-01-21 16:53:02 -0800580config ARCH_TEGRA
581 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000582 select CLKDEV_LOOKUP
Erik Gillingc5f80062010-01-21 16:53:02 -0800583 select GENERIC_TIME
584 select GENERIC_CLOCKEVENTS
585 select GENERIC_GPIO
586 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000587 select HAVE_SCHED_CLOCK
Erik Gillingc5f80062010-01-21 16:53:02 -0800588 select ARCH_HAS_BARRIERS if CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700589 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800590 help
591 This enables support for NVIDIA Tegra based systems (Tegra APX,
592 Tegra 6xx and Tegra 2 series).
593
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100594config ARCH_PNX4008
595 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000596 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100597 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000598 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100599 help
600 This enables support for Philips PNX4008 mobile platform.
601
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700603 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100604 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500605 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100606 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100607 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700608 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100609 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000610 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000611 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800612 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800613 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000614 help
eric miao2c8086a2007-09-11 19:13:17 -0700615 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616
Russell King788c9702009-04-26 14:21:59 +0100617config ARCH_MSM
618 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500619 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800620 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700621 select ARCH_REQUIRE_GPIOLIB
Eric Miao49cbe782009-01-20 14:15:18 +0800622 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800623 Support for Qualcomm MSM/QSD based systems. This runs on the
624 apps processor of the MSM/QSD and depends on a shared memory
625 interface to the modem processor which runs the baseband
626 stack and controls some vital subsystems
627 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800628
Magnus Dammc793c1b2010-02-05 11:14:49 +0000629config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900630 bool "Renesas SH-Mobile / R-Mobile"
631 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900632 select CLKDEV_LOOKUP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900633 select GENERIC_CLOCKEVENTS
634 select NO_IOPORT
635 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000636 select MULTI_IRQ_HANDLER
Magnus Dammc793c1b2010-02-05 11:14:49 +0000637 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900638 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000639
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640config ARCH_RPC
641 bool "RiscPC"
642 select ARCH_ACORN
643 select FIQ
644 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100645 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100646 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000647 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000648 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100649 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000650 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 help
652 On the Acorn Risc-PC, Linux can support the internal IDE disk and
653 CD-ROM interface, serial and parallel port, and the floppy drive.
654
655config ARCH_SA1100
656 bool "SA1100-based"
Russell Kingc7508152008-10-26 10:55:14 +0000657 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100658 select ISA
Russell King05944d72006-11-30 20:43:51 +0000659 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500660 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100661 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000662 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100663 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700664 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000665 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100666 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700667 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000668 help
669 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670
671config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900672 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800673 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100674 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700675 select HAVE_CLK
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900677 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
680 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000681 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682
Ben Dooks63b1f512010-04-30 16:32:26 +0900683 Note, the S3C2416 and the S3C2450 are so close that they even share
684 the same SoC ID code. This means that there is no seperate machine
685 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
686
Ben Dooksa08ab632008-10-21 14:06:39 +0100687config ARCH_S3C64XX
688 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000689 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900690 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900691 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100692 select HAVE_CLK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900693 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000694 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100695 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900696 select ARCH_REQUIRE_GPIOLIB
697 select SAMSUNG_CLKSRC
698 select SAMSUNG_IRQ_VIC_TIMER
699 select SAMSUNG_IRQ_UART
700 select S3C_GPIO_TRACK
701 select S3C_GPIO_PULL_UPDOWN
702 select S3C_GPIO_CFG_S3C24XX
703 select S3C_GPIO_CFG_S3C64XX
704 select S3C_DEV_NAND
705 select USB_ARCH_HAS_OHCI
706 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900707 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100709 help
710 Samsung S3C64XX series based systems
711
Kukjin Kim49b7a492010-09-07 15:47:18 +0900712config ARCH_S5P64X0
713 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900714 select CPU_V6
715 select GENERIC_GPIO
716 select HAVE_CLK
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900717 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooks925c68c2010-05-20 20:48:28 +0900718 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900719 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900720 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900721 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900722 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
723 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900724
Kukjin Kim550db7f2010-01-29 10:19:26 +0900725config ARCH_S5P6442
726 bool "Samsung S5P6442"
727 select CPU_V6
728 select GENERIC_GPIO
729 select HAVE_CLK
Ben Dooks925c68c2010-05-20 20:48:28 +0900730 select ARCH_USES_GETTIMEOFFSET
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900731 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim550db7f2010-01-29 10:19:26 +0900732 help
733 Samsung S5P6442 CPU based systems
734
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200735config ARCH_S5PC100
736 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900737 select GENERIC_GPIO
738 select HAVE_CLK
739 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100740 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900741 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900742 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900743 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900744 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900745 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200746 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900747
Kukjin Kim170f4e42010-02-24 16:40:44 +0900748config ARCH_S5PV210
749 bool "Samsung S5PV210/S5PC110"
750 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900751 select ARCH_SPARSEMEM_ENABLE
Kukjin Kim170f4e42010-02-24 16:40:44 +0900752 select GENERIC_GPIO
753 select HAVE_CLK
754 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900755 select ARCH_HAS_CPUFREQ
Ben Dooks925c68c2010-05-20 20:48:28 +0900756 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900757 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900758 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900759 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim170f4e42010-02-24 16:40:44 +0900760 help
761 Samsung S5PV210/S5PC110 series based systems
762
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900763config ARCH_S5PV310
764 bool "Samsung S5PV310/S5PC210"
765 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900766 select ARCH_SPARSEMEM_ENABLE
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900767 select GENERIC_GPIO
768 select HAVE_CLK
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900769 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900770 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900771 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900772 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900773 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900774 help
775 Samsung S5PV310 series based systems
776
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777config ARCH_SHARK
778 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000779 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100780 select ISA
781 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100782 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100783 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000784 select ARCH_USES_GETTIMEOFFSET
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000785 help
786 Support for the StrongARM based Digital DNARD machine, also known
787 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788
Hans J. Koch83ef3332010-09-17 18:13:56 +0200789config ARCH_TCC_926
790 bool "Telechips TCC ARM926-based systems"
791 select CPU_ARM926T
792 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100793 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200794 select GENERIC_CLOCKEVENTS
795 help
796 Support for Telechips TCC ARM926-based systems.
797
Linus Torvalds1da177e2005-04-16 15:20:36 -0700798config ARCH_LH7A40X
799 bool "Sharp LH7A40X"
Russell Kingc7508152008-10-26 10:55:14 +0000800 select CPU_ARM922T
Russell King4ba3f7c2008-10-01 21:38:23 +0100801 select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
John Stultz5cfc8ee2010-03-24 00:22:36 +0000802 select ARCH_USES_GETTIMEOFFSET
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803 help
804 Say Y here for systems based on one of the Sharp LH7A40X
805 System on a Chip processors. These CPUs include an ARM922T
806 core with a wide array of integrated devices for
807 hand-held and low-power applications.
808
Linus Walleijd98aac72009-04-27 10:21:46 +0100809config ARCH_U300
810 bool "ST-Ericsson U300 Series"
811 depends on MMU
812 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000813 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100814 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100815 select ARM_AMBA
816 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100817 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100818 select CLKDEV_LOOKUP
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select GENERIC_GPIO
820 help
821 Support for ST-Ericsson U300 series mobile platforms.
822
Russell Kingccf50e22010-03-15 19:03:06 +0000823config ARCH_U8500
824 bool "ST-Ericsson U8500 Series"
825 select CPU_V7
826 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000827 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100828 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100829 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100830 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000831 help
832 Support for ST-Ericsson's Ux500 architecture
833
834config ARCH_NOMADIK
835 bool "STMicroelectronics Nomadik"
836 select ARM_AMBA
837 select ARM_VIC
838 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100839 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000840 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000841 select ARCH_REQUIRE_GPIOLIB
842 help
843 Support for the Nomadik platform by ST-Ericsson
844
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100845config ARCH_DAVINCI
846 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100847 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700848 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100849 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700850 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100851 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700852 select GENERIC_ALLOCATOR
Sekhar Noriae88e052009-11-19 15:34:01 +0530853 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100854 help
855 Support for TI's DaVinci platform.
856
Russell King3b938be2007-05-12 11:25:44 +0100857config ARCH_OMAP
858 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700859 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700860 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100861 select ARCH_HAS_CPUFREQ
Kevin Hilman06cad092007-10-18 23:04:43 -0700862 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000863 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800864 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100865 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200866 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100867
viresh kumarcee37e52010-04-01 12:31:05 +0100868config PLAT_SPEAR
869 bool "ST SPEAr"
870 select ARM_AMBA
871 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100872 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100873 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100874 select HAVE_CLK
875 help
876 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
877
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878endchoice
879
Russell Kingccf50e22010-03-15 19:03:06 +0000880#
881# This is sorted alphabetically by mach-* pathname. However, plat-*
882# Kconfigs may be included either alphabetically (according to the
883# plat- suffix) or along side the corresponding mach-* source.
884#
Russell King95b8f202010-01-14 11:43:54 +0000885source "arch/arm/mach-aaec2000/Kconfig"
886
887source "arch/arm/mach-at91/Kconfig"
888
889source "arch/arm/mach-bcmring/Kconfig"
890
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891source "arch/arm/mach-clps711x/Kconfig"
892
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300893source "arch/arm/mach-cns3xxx/Kconfig"
894
Russell King95b8f202010-01-14 11:43:54 +0000895source "arch/arm/mach-davinci/Kconfig"
896
897source "arch/arm/mach-dove/Kconfig"
898
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000899source "arch/arm/mach-ep93xx/Kconfig"
900
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901source "arch/arm/mach-footbridge/Kconfig"
902
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200903source "arch/arm/mach-gemini/Kconfig"
904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-h720x/Kconfig"
906
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907source "arch/arm/mach-integrator/Kconfig"
908
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100909source "arch/arm/mach-iop32x/Kconfig"
910
911source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912
Dan Williams285f5fa2006-12-07 02:59:39 +0100913source "arch/arm/mach-iop13xx/Kconfig"
914
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915source "arch/arm/mach-ixp4xx/Kconfig"
916
917source "arch/arm/mach-ixp2000/Kconfig"
918
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100919source "arch/arm/mach-ixp23xx/Kconfig"
920
Russell King95b8f202010-01-14 11:43:54 +0000921source "arch/arm/mach-kirkwood/Kconfig"
922
923source "arch/arm/mach-ks8695/Kconfig"
924
925source "arch/arm/mach-lh7a40x/Kconfig"
926
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200927source "arch/arm/mach-loki/Kconfig"
928
Kevin Wells40805942010-07-27 08:49:04 -0700929source "arch/arm/mach-lpc32xx/Kconfig"
930
Russell King95b8f202010-01-14 11:43:54 +0000931source "arch/arm/mach-msm/Kconfig"
932
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200933source "arch/arm/mach-mv78xx0/Kconfig"
934
Russell King95b8f202010-01-14 11:43:54 +0000935source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800937source "arch/arm/mach-mxs/Kconfig"
938
Russell King95b8f202010-01-14 11:43:54 +0000939source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800940
Russell King95b8f202010-01-14 11:43:54 +0000941source "arch/arm/mach-nomadik/Kconfig"
942source "arch/arm/plat-nomadik/Kconfig"
943
944source "arch/arm/mach-ns9xxx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945
Russell Kingd91a89102010-02-04 18:13:17 +0000946source "arch/arm/mach-nuc93x/Kconfig"
947
Tony Lindgrend48af152005-07-10 19:58:17 +0100948source "arch/arm/plat-omap/Kconfig"
949
950source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
Tony Lindgren1dbae812005-11-10 14:26:51 +0000952source "arch/arm/mach-omap2/Kconfig"
953
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400954source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400955
Russell King95b8f202010-01-14 11:43:54 +0000956source "arch/arm/mach-pxa/Kconfig"
957source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-mmp/Kconfig"
960
961source "arch/arm/mach-realview/Kconfig"
962
963source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300964
Ben Dookscf383672009-11-10 00:14:58 +0000965source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100966source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900967source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100968
viresh kumarcee37e52010-04-01 12:31:05 +0100969source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100970
Hans J. Koch83ef3332010-09-17 18:13:56 +0200971source "arch/arm/plat-tcc/Kconfig"
972
Ben Dooksa21765a2007-02-11 18:31:01 +0100973if ARCH_S3C2410
974source "arch/arm/mach-s3c2400/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100976source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +0900977source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100978source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +0100979source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100980endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981
Ben Dooksa08ab632008-10-21 14:06:39 +0100982if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900983source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100984endif
985
Kukjin Kim49b7a492010-09-07 15:47:18 +0900986source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900987
Kukjin Kim550db7f2010-01-29 10:19:26 +0900988source "arch/arm/mach-s5p6442/Kconfig"
dmitry pervushin7bd0f2f2009-04-27 10:35:04 +0100989
Byungho Min5a7652f2009-06-23 21:39:42 +0900990source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900991
Kukjin Kim170f4e42010-02-24 16:40:44 +0900992source "arch/arm/mach-s5pv210/Kconfig"
993
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900994source "arch/arm/mach-s5pv310/Kconfig"
995
Russell King882d01f2010-03-02 23:40:15 +0000996source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Russell King882d01f2010-03-02 23:40:15 +0000998source "arch/arm/plat-stmp3xxx/Kconfig"
Brian Swetland9e73c842007-11-26 04:12:13 -0800999
Erik Gillingc5f80062010-01-21 16:53:02 -08001000source "arch/arm/mach-tegra/Kconfig"
1001
Russell King95b8f202010-01-14 11:43:54 +00001002source "arch/arm/mach-u300/Kconfig"
Quinn Jensen52c543f2007-07-09 22:06:53 +01001003
Russell King95b8f202010-01-14 11:43:54 +00001004source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005
1006source "arch/arm/mach-versatile/Kconfig"
1007
Russell Kingceade892010-02-11 21:44:53 +00001008source "arch/arm/mach-vexpress/Kconfig"
1009
wanzongshun7ec80dd2008-12-03 03:55:38 +01001010source "arch/arm/mach-w90x900/Kconfig"
1011
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012# Definitions to make life easier
1013config ARCH_ACORN
1014 bool
1015
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001016config PLAT_IOP
1017 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001018 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001019 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001020
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001021config PLAT_ORION
1022 bool
Russell Kingf06a1622010-12-15 21:55:06 +00001023 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001024
Eric Miaobd5ce432009-01-20 12:06:01 +08001025config PLAT_PXA
1026 bool
1027
Russell Kingf4b8b312010-01-14 12:48:06 +00001028config PLAT_VERSATILE
1029 bool
1030
Russell Kinge3887712010-01-14 13:30:16 +00001031config ARM_TIMER_SP804
1032 bool
1033
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034source arch/arm/mm/Kconfig
1035
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001036config IWMMXT
1037 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001038 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1039 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001040 help
1041 Enable support for iWMMXt context switching at run time if
1042 running on a CPU that supports it.
1043
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1045config XSCALE_PMU
1046 bool
1047 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1048 default y
1049
Jamie Iles0f4f0672010-02-02 20:23:15 +01001050config CPU_HAS_PMU
Will Deacon8954bb02010-06-21 15:32:54 +01001051 depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1052 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001053 default y
1054 bool
1055
eric miao52108642010-12-13 09:42:34 +01001056config MULTI_IRQ_HANDLER
1057 bool
1058 help
1059 Allow each machine to specify it's own IRQ handler at run time.
1060
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001061if !MMU
1062source "arch/arm/Kconfig-nommu"
1063endif
1064
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001065config ARM_ERRATA_411920
1066 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Tony Lindgren81d11952010-09-21 17:16:40 +01001067 depends on CPU_V6
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001068 help
1069 Invalidation of the Instruction Cache operation can
1070 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1071 It does not affect the MPCore. This option enables the ARM Ltd.
1072 recommended workaround.
1073
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001074config ARM_ERRATA_430973
1075 bool "ARM errata: Stale prediction on replaced interworking branch"
1076 depends on CPU_V7
1077 help
1078 This option enables the workaround for the 430973 Cortex-A8
1079 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1080 interworking branch is replaced with another code sequence at the
1081 same virtual address, whether due to self-modifying code or virtual
1082 to physical address re-mapping, Cortex-A8 does not recover from the
1083 stale interworking branch prediction. This results in Cortex-A8
1084 executing the new code sequence in the incorrect ARM or Thumb state.
1085 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1086 and also flushes the branch target cache at every context switch.
1087 Note that setting specific bits in the ACTLR register may not be
1088 available in non-secure mode.
1089
Catalin Marinas855c5512009-04-30 17:06:15 +01001090config ARM_ERRATA_458693
1091 bool "ARM errata: Processor deadlock when a false hazard is created"
1092 depends on CPU_V7
1093 help
1094 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1095 erratum. For very specific sequences of memory operations, it is
1096 possible for a hazard condition intended for a cache line to instead
1097 be incorrectly associated with a different cache line. This false
1098 hazard might then cause a processor deadlock. The workaround enables
1099 the L1 caching of the NEON accesses and disables the PLD instruction
1100 in the ACTLR register. Note that setting specific bits in the ACTLR
1101 register may not be available in non-secure mode.
1102
Catalin Marinas0516e462009-04-30 17:06:20 +01001103config ARM_ERRATA_460075
1104 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1105 depends on CPU_V7
1106 help
1107 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1108 erratum. Any asynchronous access to the L2 cache may encounter a
1109 situation in which recent store transactions to the L2 cache are lost
1110 and overwritten with stale memory contents from external memory. The
1111 workaround disables the write-allocate mode for the L2 cache via the
1112 ACTLR register. Note that setting specific bits in the ACTLR register
1113 may not be available in non-secure mode.
1114
Will Deacon9f050272010-09-14 09:51:43 +01001115config ARM_ERRATA_742230
1116 bool "ARM errata: DMB operation may be faulty"
1117 depends on CPU_V7 && SMP
1118 help
1119 This option enables the workaround for the 742230 Cortex-A9
1120 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1121 between two write operations may not ensure the correct visibility
1122 ordering of the two writes. This workaround sets a specific bit in
1123 the diagnostic register of the Cortex-A9 which causes the DMB
1124 instruction to behave as a DSB, ensuring the correct behaviour of
1125 the two writes.
1126
Will Deacona672e992010-09-14 09:53:02 +01001127config ARM_ERRATA_742231
1128 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1129 depends on CPU_V7 && SMP
1130 help
1131 This option enables the workaround for the 742231 Cortex-A9
1132 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1133 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1134 accessing some data located in the same cache line, may get corrupted
1135 data due to bad handling of the address hazard when the line gets
1136 replaced from one of the CPUs at the same time as another CPU is
1137 accessing it. This workaround sets specific bits in the diagnostic
1138 register of the Cortex-A9 which reduces the linefill issuing
1139 capabilities of the processor.
1140
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001141config PL310_ERRATA_588369
1142 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1143 depends on CACHE_L2X0 && ARCH_OMAP4
1144 help
1145 The PL310 L2 cache controller implements three types of Clean &
1146 Invalidate maintenance operations: by Physical Address
1147 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1148 They are architecturally defined to behave as the execution of a
1149 clean operation followed immediately by an invalidate operation,
1150 both performing to the same memory location. This functionality
1151 is not correctly implemented in PL310 as clean lines are not
1152 invalidated as a result of these operations. Note that this errata
1153 uses Texas Instrument's secure monitor api.
Will Deaconcdf357f2010-08-05 11:20:51 +01001154
1155config ARM_ERRATA_720789
1156 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1157 depends on CPU_V7 && SMP
1158 help
1159 This option enables the workaround for the 720789 Cortex-A9 (prior to
1160 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1161 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1162 As a consequence of this erratum, some TLB entries which should be
1163 invalidated are not, resulting in an incoherency in the system page
1164 tables. The workaround changes the TLB flushing routines to invalidate
1165 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001166
1167config ARM_ERRATA_743622
1168 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1169 depends on CPU_V7
1170 help
1171 This option enables the workaround for the 743622 Cortex-A9
1172 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1173 optimisation in the Cortex-A9 Store Buffer may lead to data
1174 corruption. This workaround sets a specific bit in the diagnostic
1175 register of the Cortex-A9 which disables the Store Buffer
1176 optimisation, preventing the defect from occurring. This has no
1177 visible impact on the overall performance or power consumption of the
1178 processor.
1179
Linus Torvalds1da177e2005-04-16 15:20:36 -07001180endmenu
1181
1182source "arch/arm/common/Kconfig"
1183
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184menu "Bus support"
1185
1186config ARM_AMBA
1187 bool
1188
1189config ISA
1190 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191 help
1192 Find out whether you have ISA slots on your motherboard. ISA is the
1193 name of a bus system, i.e. the way the CPU talks to the other stuff
1194 inside your box. Other bus systems are PCI, EISA, MicroChannel
1195 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1196 newer boards don't support it. If you have ISA, say Y, otherwise N.
1197
Russell King065909b2006-01-04 15:44:16 +00001198# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199config ISA_DMA
1200 bool
Russell King065909b2006-01-04 15:44:16 +00001201 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202
Russell King065909b2006-01-04 15:44:16 +00001203# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001204config ISA_DMA_API
1205 bool
Al Viro5cae8412005-05-04 05:39:22 +01001206
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001208 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209 help
1210 Find out whether you have a PCI motherboard. PCI is the name of a
1211 bus system, i.e. the way the CPU talks to the other stuff inside
1212 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1213 VESA. If you have PCI, say Y, otherwise N.
1214
Anton Vorontsov52882172010-04-19 13:20:49 +01001215config PCI_DOMAINS
1216 bool
1217 depends on PCI
1218
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001219config PCI_NANOENGINE
1220 bool "BSE nanoEngine PCI support"
1221 depends on SA1100_NANOENGINE
1222 help
1223 Enable PCI on the BSE nanoEngine board.
1224
Matthew Wilcox36e23592007-07-10 10:54:40 -06001225config PCI_SYSCALL
1226 def_bool PCI
1227
Linus Torvalds1da177e2005-04-16 15:20:36 -07001228# Select the host bridge type
1229config PCI_HOST_VIA82C505
1230 bool
1231 depends on PCI && ARCH_SHARK
1232 default y
1233
Mike Rapoporta0113a92007-11-25 08:55:34 +01001234config PCI_HOST_ITE8152
1235 bool
1236 depends on PCI && MACH_ARMCORE
1237 default y
1238 select DMABOUNCE
1239
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240source "drivers/pci/Kconfig"
1241
1242source "drivers/pcmcia/Kconfig"
1243
1244endmenu
1245
1246menu "Kernel Features"
1247
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001248source "kernel/time/Kconfig"
1249
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250config SMP
1251 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
Russell King971acb92010-09-04 08:16:30 +01001252 depends on EXPERIMENTAL
Russell Kingbc282482009-05-17 18:58:34 +01001253 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001254 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001255 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1256 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001257 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001258 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001259 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 help
1261 This enables support for systems with more than one CPU. If you have
1262 a system with only one CPU, like most personal computers, say N. If
1263 you have a system with more than one CPU, say Y.
1264
1265 If you say N here, the kernel will run on single and multiprocessor
1266 machines, but will use only one CPU of a multiprocessor machine. If
1267 you say Y here, the kernel will run on many, but not all, single
1268 processor machines. On a single processor machine, the kernel will
1269 run faster if you say N here.
1270
Adrian Bunk03502fa2008-02-03 15:50:21 +02001271 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001273 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274
1275 If you don't know what to do here, say N.
1276
Russell Kingf00ec482010-09-04 10:47:48 +01001277config SMP_ON_UP
1278 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1279 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001280 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001281 default y
1282 help
1283 SMP kernels contain instructions which fail on non-SMP processors.
1284 Enabling this option allows the kernel to modify itself to make
1285 these instructions safe. Disabling it allows about 1K of space
1286 savings.
1287
1288 If you don't know what to do here, say Y.
1289
Russell Kinga8cbcd92009-05-16 11:51:14 +01001290config HAVE_ARM_SCU
1291 bool
1292 depends on SMP
1293 help
1294 This option enables support for the ARM system coherency unit
1295
Russell Kingf32f4ce2009-05-16 12:14:21 +01001296config HAVE_ARM_TWD
1297 bool
1298 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001299 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001300 help
1301 This options enables support for the ARM timer and watchdog unit
1302
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001303choice
1304 prompt "Memory split"
1305 default VMSPLIT_3G
1306 help
1307 Select the desired split between kernel and user memory.
1308
1309 If you are not absolutely sure what you are doing, leave this
1310 option alone!
1311
1312 config VMSPLIT_3G
1313 bool "3G/1G user/kernel split"
1314 config VMSPLIT_2G
1315 bool "2G/2G user/kernel split"
1316 config VMSPLIT_1G
1317 bool "1G/3G user/kernel split"
1318endchoice
1319
1320config PAGE_OFFSET
1321 hex
1322 default 0x40000000 if VMSPLIT_1G
1323 default 0x80000000 if VMSPLIT_2G
1324 default 0xC0000000
1325
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326config NR_CPUS
1327 int "Maximum number of CPUs (2-32)"
1328 range 2 32
1329 depends on SMP
1330 default "4"
1331
Russell Kinga054a812005-11-02 22:24:33 +00001332config HOTPLUG_CPU
1333 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1334 depends on SMP && HOTPLUG && EXPERIMENTAL
Daniel Walker176bfc42010-09-07 13:33:05 -07001335 depends on !ARCH_MSM
Russell Kinga054a812005-11-02 22:24:33 +00001336 help
1337 Say Y here to experiment with turning CPUs off and on. CPUs
1338 can be controlled through /sys/devices/system/cpu.
1339
Russell King37ee16a2005-11-08 19:08:05 +00001340config LOCAL_TIMERS
1341 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001342 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001343 default y
Daniel Walker89c3ded2010-11-22 12:35:41 -08001344 select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
Russell King37ee16a2005-11-08 19:08:05 +00001345 help
1346 Enable support for local timers on SMP platforms, rather then the
1347 legacy IPI broadcast method. Local timers allows the system
1348 accounting to be spread across the timer interval, preventing a
1349 "thundering herd" at every timer tick.
1350
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001351source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352
Russell Kingf8065812006-03-02 22:41:59 +00001353config HZ
1354 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001355 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Russell King21924822010-08-09 14:07:19 +01001356 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
Russell Kingbfe65702006-03-04 11:01:53 +00001357 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001358 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001359 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001360 default 100
1361
Catalin Marinas16c79652009-07-24 12:33:02 +01001362config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001363 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Dave Martin6e6fc992010-12-13 21:53:53 +01001364 depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001365 select AEABI
1366 select ARM_ASM_UNIFIED
1367 help
1368 By enabling this option, the kernel will be compiled in
1369 Thumb-2 mode. A compiler/assembler that understand the unified
1370 ARM-Thumb syntax is needed.
1371
1372 If unsure, say N.
1373
Catalin Marinas0becb082009-07-24 12:32:53 +01001374config ARM_ASM_UNIFIED
1375 bool
1376
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001377config AEABI
1378 bool "Use the ARM EABI to compile the kernel"
1379 help
1380 This option allows for the kernel to be compiled using the latest
1381 ARM ABI (aka EABI). This is only useful if you are using a user
1382 space environment that is also compiled with EABI.
1383
1384 Since there are major incompatibilities between the legacy ABI and
1385 EABI, especially with regard to structure member alignment, this
1386 option also changes the kernel syscall calling convention to
1387 disambiguate both ABIs and allow for backward compatibility support
1388 (selected with CONFIG_OABI_COMPAT).
1389
1390 To use this you need GCC version 4.0.0 or later.
1391
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001392config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001393 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Nicolas Pitre61c484d2006-02-08 21:09:08 +00001394 depends on AEABI && EXPERIMENTAL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001395 default y
1396 help
1397 This option preserves the old syscall interface along with the
1398 new (ARM EABI) one. It also provides a compatibility layer to
1399 intercept syscalls that have structure arguments which layout
1400 in memory differs between the legacy ABI and the new ARM EABI
1401 (only for non "thumb" binaries). This option adds a tiny
1402 overhead to all syscalls and produces a slightly larger kernel.
1403 If you know you'll be using only pure EABI user space then you
1404 can say N here. If this option is not selected and you attempt
1405 to execute a legacy ABI binary then the result will be
1406 UNPREDICTABLE (in fact it can be predicted that it won't work
1407 at all). If in doubt say Y.
1408
Mel Gormaneb335752009-05-13 17:34:48 +01001409config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001410 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001411
Russell King05944d72006-11-30 20:43:51 +00001412config ARCH_SPARSEMEM_ENABLE
1413 bool
1414
Russell King07a2f732008-10-01 21:39:58 +01001415config ARCH_SPARSEMEM_DEFAULT
1416 def_bool ARCH_SPARSEMEM_ENABLE
1417
Russell King05944d72006-11-30 20:43:51 +00001418config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001419 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001420
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001421config HIGHMEM
1422 bool "High Memory Support (EXPERIMENTAL)"
1423 depends on MMU && EXPERIMENTAL
1424 help
1425 The address space of ARM processors is only 4 Gigabytes large
1426 and it has to accommodate user address space, kernel address
1427 space as well as some memory mapped IO. That means that, if you
1428 have a large amount of physical memory and/or IO, not all of the
1429 memory can be "permanently mapped" by the kernel. The physical
1430 memory that is not permanently mapped is called "high memory".
1431
1432 Depending on the selected kernel/user memory split, minimum
1433 vmalloc space and actual amount of RAM, you may not need this
1434 option which should result in a slightly faster kernel.
1435
1436 If unsure, say n.
1437
Russell King65cec8e2009-08-17 20:02:06 +01001438config HIGHPTE
1439 bool "Allocate 2nd-level pagetables from highmem"
1440 depends on HIGHMEM
1441 depends on !OUTER_CACHE
1442
Jamie Iles1b8873a2010-02-02 20:25:44 +01001443config HW_PERF_EVENTS
1444 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001445 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001446 default y
1447 help
1448 Enable hardware performance counter support for perf events. If
1449 disabled, perf events will use software events only.
1450
Dave Hansen3f22ab22005-06-23 00:07:43 -07001451source "mm/Kconfig"
1452
Magnus Dammc1b2d972010-07-05 10:00:11 +01001453config FORCE_MAX_ZONEORDER
1454 int "Maximum zone order" if ARCH_SHMOBILE
1455 range 11 64 if ARCH_SHMOBILE
1456 default "9" if SA1111
1457 default "11"
1458 help
1459 The kernel memory allocator divides physically contiguous memory
1460 blocks into "zones", where each zone is a power of two number of
1461 pages. This option selects the largest power of two that the kernel
1462 keeps in the memory allocator. If you need to allocate very large
1463 blocks of physically contiguous memory, then you may need to
1464 increase this value.
1465
1466 This config option is actually maximum order plus one. For example,
1467 a value of 11 means that the largest free memory block is 2^10 pages.
1468
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469config LEDS
1470 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001471 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001472 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1474 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001475 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001476 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001477 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001478 help
1479 If you say Y here, the LEDs on your machine will be used
1480 to provide useful information about your current system status.
1481
1482 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1483 be able to select which LEDs are active using the options below. If
1484 you are compiling a kernel for the EBSA-110 or the LART however, the
1485 red LED will simply flash regularly to indicate that the system is
1486 still functional. It is safe to say Y here if you have a CATS
1487 system, but the driver will do nothing.
1488
1489config LEDS_TIMER
1490 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001491 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1492 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001494 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495 default y if ARCH_EBSA110
1496 help
1497 If you say Y here, one of the system LEDs (the green one on the
1498 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1499 will flash regularly to indicate that the system is still
1500 operational. This is mainly useful to kernel hackers who are
1501 debugging unstable kernels.
1502
1503 The LART uses the same LED for both Timer LED and CPU usage LED
1504 functions. You may choose to use both, but the Timer LED function
1505 will overrule the CPU usage LED.
1506
1507config LEDS_CPU
1508 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001509 !ARCH_OMAP) \
1510 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1511 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512 depends on LEDS
1513 help
1514 If you say Y here, the red LED will be used to give a good real
1515 time indication of CPU usage, by lighting whenever the idle task
1516 is not currently executing.
1517
1518 The LART uses the same LED for both Timer LED and CPU usage LED
1519 functions. You may choose to use both, but the Timer LED function
1520 will overrule the CPU usage LED.
1521
1522config ALIGNMENT_TRAP
1523 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001524 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001526 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001528 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1530 address divisible by 4. On 32-bit ARM processors, these non-aligned
1531 fetch/store instructions will be emulated in software if you say
1532 here, which has a severe performance impact. This is necessary for
1533 correct operation of some network protocols. With an IP-only
1534 configuration it is safe to say N, otherwise say Y.
1535
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001536config UACCESS_WITH_MEMCPY
1537 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1538 depends on MMU && EXPERIMENTAL
1539 default y if CPU_FEROCEON
1540 help
1541 Implement faster copy_to_user and clear_user methods for CPU
1542 cores where a 8-word STM instruction give significantly higher
1543 memory write throughput than a sequence of individual 32bit stores.
1544
1545 A possible side effect is a slight increase in scheduling latency
1546 between threads sharing the same address space if they invoke
1547 such copy operations with large buffers.
1548
1549 However, if the CPU data cache is using a write-allocate mode,
1550 this option is unlikely to provide any performance gain.
1551
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001552config SECCOMP
1553 bool
1554 prompt "Enable seccomp to safely compute untrusted bytecode"
1555 ---help---
1556 This kernel feature is useful for number crunching applications
1557 that may need to compute untrusted bytecode during their
1558 execution. By using pipes or other transports made available to
1559 the process as file descriptors supporting the read/write
1560 syscalls, it's possible to isolate those applications in
1561 their own address space using seccomp. Once seccomp is
1562 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1563 and the task is only allowed to execute a few safe syscalls
1564 defined by each seccomp mode.
1565
Nicolas Pitrec743f382010-05-24 23:55:42 -04001566config CC_STACKPROTECTOR
1567 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001568 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001569 help
1570 This option turns on the -fstack-protector GCC feature. This
1571 feature puts, at the beginning of functions, a canary value on
1572 the stack just before the return address, and validates
1573 the value just before actually returning. Stack based buffer
1574 overflows (that need to overwrite this return address) now also
1575 overwrite the canary, which gets detected and the attack is then
1576 neutralized via a kernel panic.
1577 This feature requires gcc version 4.2 or above.
1578
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001579config DEPRECATED_PARAM_STRUCT
1580 bool "Provide old way to pass kernel parameters"
1581 help
1582 This was deprecated in 2001 and announced to live on for 5 years.
1583 Some old boot loaders still use this way.
1584
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585endmenu
1586
1587menu "Boot options"
1588
1589# Compressed boot loader in ROM. Yes, we really want to ask about
1590# TEXT and BSS so we preserve their values in the config files.
1591config ZBOOT_ROM_TEXT
1592 hex "Compressed ROM boot loader base address"
1593 default "0"
1594 help
1595 The physical address at which the ROM-able zImage is to be
1596 placed in the target. Platforms which normally make use of
1597 ROM-able zImage formats normally set this to a suitable
1598 value in their defconfig file.
1599
1600 If ZBOOT_ROM is not enabled, this has no effect.
1601
1602config ZBOOT_ROM_BSS
1603 hex "Compressed ROM boot loader BSS address"
1604 default "0"
1605 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001606 The base address of an area of read/write memory in the target
1607 for the ROM-able zImage which must be available while the
1608 decompressor is running. It must be large enough to hold the
1609 entire decompressed kernel plus an additional 128 KiB.
1610 Platforms which normally make use of ROM-able zImage formats
1611 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001612
1613 If ZBOOT_ROM is not enabled, this has no effect.
1614
1615config ZBOOT_ROM
1616 bool "Compressed boot loader in ROM/flash"
1617 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1618 help
1619 Say Y here if you intend to execute your compressed kernel image
1620 (zImage) directly from ROM or flash. If unsure, say N.
1621
1622config CMDLINE
1623 string "Default kernel command string"
1624 default ""
1625 help
1626 On some architectures (EBSA110 and CATS), there is currently no way
1627 for the boot loader to pass arguments to the kernel. For these
1628 architectures, you should supply some command-line options at build
1629 time by entering them here. As a minimum, you should specify the
1630 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1631
Alexander Holler92d20402010-02-16 19:04:53 +01001632config CMDLINE_FORCE
1633 bool "Always use the default kernel command string"
1634 depends on CMDLINE != ""
1635 help
1636 Always use the default kernel command string, even if the boot
1637 loader passes other arguments to the kernel.
1638 This is useful if you cannot or don't want to change the
1639 command-line options your boot loader passes to the kernel.
1640
1641 If unsure, say N.
1642
Linus Torvalds1da177e2005-04-16 15:20:36 -07001643config XIP_KERNEL
1644 bool "Kernel Execute-In-Place from ROM"
1645 depends on !ZBOOT_ROM
1646 help
1647 Execute-In-Place allows the kernel to run from non-volatile storage
1648 directly addressable by the CPU, such as NOR flash. This saves RAM
1649 space since the text section of the kernel is not loaded from flash
1650 to RAM. Read-write sections, such as the data section and stack,
1651 are still copied to RAM. The XIP kernel is not compressed since
1652 it has to run directly from flash, so it will take more space to
1653 store it. The flash address used to link the kernel object files,
1654 and for storing it, is configuration dependent. Therefore, if you
1655 say Y here, you must know the proper physical address where to
1656 store the kernel image depending on your own flash memory usage.
1657
1658 Also note that the make target becomes "make xipImage" rather than
1659 "make zImage" or "make Image". The final kernel binary to put in
1660 ROM memory will be arch/arm/boot/xipImage.
1661
1662 If unsure, say N.
1663
1664config XIP_PHYS_ADDR
1665 hex "XIP Kernel Physical Location"
1666 depends on XIP_KERNEL
1667 default "0x00080000"
1668 help
1669 This is the physical address in your flash memory the kernel will
1670 be linked for and stored to. This address is dependent on your
1671 own flash usage.
1672
Richard Purdiec587e4a2007-02-06 21:29:00 +01001673config KEXEC
1674 bool "Kexec system call (EXPERIMENTAL)"
1675 depends on EXPERIMENTAL
1676 help
1677 kexec is a system call that implements the ability to shutdown your
1678 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001679 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001680 you can start any kernel with it, not just Linux.
1681
1682 It is an ongoing process to be certain the hardware in a machine
1683 is properly shutdown, so do not be surprised if this code does not
1684 initially work for you. It may help to enable device hotplugging
1685 support.
1686
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001687config ATAGS_PROC
1688 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001689 depends on KEXEC
1690 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001691 help
1692 Should the atags used to boot the kernel be exported in an "atags"
1693 file in procfs. Useful with kexec.
1694
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001695config CRASH_DUMP
1696 bool "Build kdump crash kernel (EXPERIMENTAL)"
1697 depends on EXPERIMENTAL
1698 help
1699 Generate crash dump after being started by kexec. This should
1700 be normally only set in special crash dump kernels which are
1701 loaded in the main kernel with kexec-tools into a specially
1702 reserved region and then later executed after a crash by
1703 kdump/kexec. The crash dump kernel must be compiled to a
1704 memory address not used by the main kernel
1705
1706 For more details see Documentation/kdump/kdump.txt
1707
Eric Miaoe69edc792010-07-05 15:56:50 +02001708config AUTO_ZRELADDR
1709 bool "Auto calculation of the decompressed kernel image address"
1710 depends on !ZBOOT_ROM && !ARCH_U300
1711 help
1712 ZRELADDR is the physical address where the decompressed kernel
1713 image will be placed. If AUTO_ZRELADDR is selected, the address
1714 will be determined at run-time by masking the current IP with
1715 0xf8000000. This assumes the zImage being placed in the first 128MB
1716 from start of memory.
1717
Linus Torvalds1da177e2005-04-16 15:20:36 -07001718endmenu
1719
Russell Kingac9d7ef2008-08-18 17:26:00 +01001720menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721
Ben Dooks89c52ed2009-07-30 23:23:24 +01001722if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723
1724source "drivers/cpufreq/Kconfig"
1725
Yong Shen64f102b2010-10-21 21:18:59 +08001726config CPU_FREQ_IMX
1727 tristate "CPUfreq driver for i.MX CPUs"
1728 depends on ARCH_MXC && CPU_FREQ
1729 help
1730 This enables the CPUfreq driver for i.MX CPUs.
1731
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732config CPU_FREQ_SA1100
1733 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734
1735config CPU_FREQ_SA1110
1736 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737
1738config CPU_FREQ_INTEGRATOR
1739 tristate "CPUfreq driver for ARM Integrator CPUs"
1740 depends on ARCH_INTEGRATOR && CPU_FREQ
1741 default y
1742 help
1743 This enables the CPUfreq driver for ARM Integrator CPUs.
1744
1745 For details, take a look at <file:Documentation/cpu-freq>.
1746
1747 If in doubt, say Y.
1748
Russell King9e2697f2007-12-14 13:30:14 +00001749config CPU_FREQ_PXA
1750 bool
1751 depends on CPU_FREQ && ARCH_PXA && PXA25x
1752 default y
1753 select CPU_FREQ_DEFAULT_GOV_USERSPACE
1754
Mark Brownb3748dd2009-06-15 11:23:20 +01001755config CPU_FREQ_S3C64XX
1756 bool "CPUfreq support for Samsung S3C64XX CPUs"
1757 depends on CPU_FREQ && CPU_S3C6410
1758
Ben Dooks9d56c022009-07-30 23:23:25 +01001759config CPU_FREQ_S3C
1760 bool
1761 help
1762 Internal configuration node for common cpufreq on Samsung SoC
1763
1764config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00001765 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001766 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1767 select CPU_FREQ_S3C
1768 help
1769 This enables the CPUfreq driver for the Samsung S3C24XX family
1770 of CPUs.
1771
1772 For details, take a look at <file:Documentation/cpu-freq>.
1773
1774 If in doubt, say N.
1775
1776config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00001777 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01001778 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1779 help
1780 Compile in support for changing the PLL frequency from the
1781 S3C24XX series CPUfreq driver. The PLL takes time to settle
1782 after a frequency change, so by default it is not enabled.
1783
1784 This also means that the PLL tables for the selected CPU(s) will
1785 be built which may increase the size of the kernel image.
1786
1787config CPU_FREQ_S3C24XX_DEBUG
1788 bool "Debug CPUfreq Samsung driver core"
1789 depends on CPU_FREQ_S3C24XX
1790 help
1791 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1792
1793config CPU_FREQ_S3C24XX_IODEBUG
1794 bool "Debug CPUfreq Samsung driver IO timing"
1795 depends on CPU_FREQ_S3C24XX
1796 help
1797 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1798
Ben Dookse6d197a2009-07-30 23:23:42 +01001799config CPU_FREQ_S3C24XX_DEBUGFS
1800 bool "Export debugfs for CPUFreq"
1801 depends on CPU_FREQ_S3C24XX && DEBUG_FS
1802 help
1803 Export status information via debugfs.
1804
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805endif
1806
Russell Kingac9d7ef2008-08-18 17:26:00 +01001807source "drivers/cpuidle/Kconfig"
1808
1809endmenu
1810
Linus Torvalds1da177e2005-04-16 15:20:36 -07001811menu "Floating point emulation"
1812
1813comment "At least one emulation must be selected"
1814
1815config FPE_NWFPE
1816 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01001817 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818 ---help---
1819 Say Y to include the NWFPE floating point emulator in the kernel.
1820 This is necessary to run most binaries. Linux does not currently
1821 support floating point hardware so you need to say Y here even if
1822 your machine has an FPA or floating point co-processor podule.
1823
1824 You may say N here if you are going to load the Acorn FPEmulator
1825 early in the bootup.
1826
1827config FPE_NWFPE_XP
1828 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00001829 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830 help
1831 Say Y to include 80-bit support in the kernel floating-point
1832 emulator. Otherwise, only 32 and 64-bit support is compiled in.
1833 Note that gcc does not generate 80-bit operations by default,
1834 so in most cases this option only enlarges the size of the
1835 floating point emulator without any good reason.
1836
1837 You almost surely want to say N here.
1838
1839config FPE_FASTFPE
1840 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00001841 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842 ---help---
1843 Say Y here to include the FAST floating point emulator in the kernel.
1844 This is an experimental much faster emulator which now also has full
1845 precision for the mantissa. It does not support any exceptions.
1846 It is very simple, and approximately 3-6 times faster than NWFPE.
1847
1848 It should be sufficient for most programs. It may be not suitable
1849 for scientific calculations, but you have to check this for yourself.
1850 If you do not feel you need a faster FP emulation you should better
1851 choose NWFPE.
1852
1853config VFP
1854 bool "VFP-format floating point maths"
Russell Kingc00d4ff2008-01-28 13:21:30 +00001855 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856 help
1857 Say Y to include VFP support code in the kernel. This is needed
1858 if your hardware includes a VFP unit.
1859
1860 Please see <file:Documentation/arm/VFP/release-notes.txt> for
1861 release notes and additional status information.
1862
1863 Say N if your target does not have VFP hardware.
1864
Catalin Marinas25ebee02007-09-25 15:22:24 +01001865config VFPv3
1866 bool
1867 depends on VFP
1868 default y if CPU_V7
1869
Catalin Marinasb5872db2008-01-10 19:16:17 +01001870config NEON
1871 bool "Advanced SIMD (NEON) Extension support"
1872 depends on VFPv3 && CPU_V7
1873 help
1874 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1875 Extension.
1876
Linus Torvalds1da177e2005-04-16 15:20:36 -07001877endmenu
1878
1879menu "Userspace binary formats"
1880
1881source "fs/Kconfig.binfmt"
1882
1883config ARTHUR
1884 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001885 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886 help
1887 Say Y here to include the kernel code necessary if you want to run
1888 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1889 experimental; if this sounds frightening, say N and sleep in peace.
1890 You can also say M here to compile this support as a module (which
1891 will be called arthur).
1892
1893endmenu
1894
1895menu "Power management options"
1896
Russell Kingeceab4a2005-11-15 11:31:41 +00001897source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001898
Johannes Bergf4cb5702007-12-08 02:14:00 +01001899config ARCH_SUSPEND_POSSIBLE
1900 def_bool y
1901
Linus Torvalds1da177e2005-04-16 15:20:36 -07001902endmenu
1903
Sam Ravnborgd5950b42005-07-11 21:03:49 -07001904source "net/Kconfig"
1905
Uwe Kleine-Königac251502009-08-13 21:09:21 +02001906source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001907
1908source "fs/Kconfig"
1909
Linus Torvalds1da177e2005-04-16 15:20:36 -07001910source "arch/arm/Kconfig.debug"
1911
1912source "security/Kconfig"
1913
1914source "crypto/Kconfig"
1915
1916source "lib/Kconfig"