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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
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
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
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !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
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_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
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || 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
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb90262011-09-10 11:30:28 +053032 select CPU_PM if (SUSPEND || CPU_IDLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 Europe. There is an ARM Linux project with a web page at
39 <http://www.arm.linux.org.uk/>.
40
Russell King74facff2011-06-02 11:16:22 +010041config ARM_HAS_SG_CHAIN
42 bool
43
Russell King1a189b92008-04-13 21:41:55 +010044config HAVE_PWM
45 bool
46
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010047config MIGHT_HAVE_PCI
48 bool
49
Ralf Baechle75e71532007-02-09 17:08:58 +000050config SYS_SUPPORTS_APM_EMULATION
51 bool
52
Russell King112f38a42010-12-15 19:23:07 +000053config HAVE_SCHED_CLOCK
54 bool
55
David Brownell0a938b92007-03-05 00:30:18 -080056config GENERIC_GPIO
57 bool
David Brownell0a938b92007-03-05 00:30:18 -080058
John Stultz5cfc8ee2010-03-24 00:22:36 +000059config ARCH_USES_GETTIMEOFFSET
60 bool
61 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010062
Kevin Hilman0567a0c2007-03-13 20:29:24 +010063config GENERIC_CLOCKEVENTS
64 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065
Catalin Marinasa8655e82008-02-04 17:30:57 +010066config GENERIC_CLOCKEVENTS_BROADCAST
67 bool
68 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010069 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010070
Rob Herringbf9dd362011-03-04 23:51:59 +010071config KTIME_SCALAR
72 bool
73 default y
74
Linus Walleijbc581772009-09-15 17:30:37 +010075config HAVE_TCM
76 bool
77 select GENERIC_ALLOCATOR
78
Russell Kinge119bff2010-01-10 17:23:29 +000079config HAVE_PROC_CPU
80 bool
81
Al Viro5ea81762007-02-11 15:41:31 +000082config NO_IOPORT
83 bool
Al Viro5ea81762007-02-11 15:41:31 +000084
Linus Torvalds1da177e2005-04-16 15:20:36 -070085config EISA
86 bool
87 ---help---
88 The Extended Industry Standard Architecture (EISA) bus was
89 developed as an open alternative to the IBM MicroChannel bus.
90
91 The EISA bus provided some of the features of the IBM MicroChannel
92 bus while maintaining backward compatibility with cards made for
93 the older ISA bus. The EISA bus saw limited use between 1988 and
94 1995 when it was made obsolete by the PCI bus.
95
96 Say Y here if you are building a kernel for an EISA-based machine.
97
98 Otherwise, say N.
99
100config SBUS
101 bool
102
103config MCA
104 bool
105 help
106 MicroChannel Architecture is found in some IBM PS/2 machines and
107 laptops. It is a bus system similar to PCI or ISA. See
108 <file:Documentation/mca.txt> (and especially the web page given
109 there) before attempting to build an MCA bus kernel.
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100128config HARDIRQS_SW_RESEND
129 bool
130 default y
131
132config GENERIC_IRQ_PROBE
133 bool
134 default y
135
Nick Piggin95c354f2008-01-30 13:31:20 +0100136config GENERIC_LOCKBREAK
137 bool
138 default y
139 depends on SMP && PREEMPT
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config RWSEM_GENERIC_SPINLOCK
142 bool
143 default y
144
145config RWSEM_XCHGADD_ALGORITHM
146 bool
147
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148config ARCH_HAS_ILOG2_U32
149 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150
151config ARCH_HAS_ILOG2_U64
152 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153
Ben Dooks89c52ed2009-07-30 23:23:24 +0100154config ARCH_HAS_CPUFREQ
155 bool
156 help
157 Internal node to signify that the ARCH has CPUFREQ support
158 and that the relevant menu configurations are displayed for
159 it.
160
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100161config ARCH_HAS_CPU_IDLE_WAIT
162 def_bool y
163
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800164config GENERIC_HWEIGHT
165 bool
166 default y
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_CALIBRATE_DELAY
169 bool
170 default y
171
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100172config ARCH_MAY_HAVE_PC_FDC
173 bool
174
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800175config ZONE_DMA
176 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800178config NEED_DMA_MAP_STATE
179 def_bool y
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_ISA_DMA
182 bool
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config FIQ
185 bool
186
Al Viro034d2f52005-12-19 16:27:59 -0500187config ARCH_MTD_XIP
188 bool
189
Hyok S. Choic760fc12006-03-27 15:18:50 +0100190config VECTORS_BASE
191 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900192 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193 default DRAM_BASE if REMAP_VECTORS_TO_RAM
194 default 0x00000000
195 help
196 The base address of exception vectors.
197
Russell Kingdc21af92011-01-04 19:09:43 +0000198config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100199 bool "Patch physical to virtual translations at runtime" if EMBEDDED
200 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100201 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000202 depends on !ARCH_REALVIEW || !SPARSEMEM
203 help
Russell King111e9a52011-05-12 10:02:42 +0100204 Patch phys-to-virt and virt-to-phys translation functions at
205 boot and module load time according to the position of the
206 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell King111e9a52011-05-12 10:02:42 +0100208 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100209 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000210
Russell Kingc1beced2011-08-10 10:23:45 +0100211 Only disable this option if you know that you do not require
212 this feature (eg, building a kernel for a single machine) and
213 you need to shrink the kernel to the minimal size.
214
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400215config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400216 bool
Russell King111e9a52011-05-12 10:02:42 +0100217 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218 Select this when mach/memory.h is required to provide special
219 definitions for this platform. The need for mach/memory.h should
220 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400221
222config PHYS_OFFSET
223 hex "Physical address of main memory"
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400224 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225 help
226 Please provide the physical address corresponding to the
227 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000228
Simon Glass87e040b2011-08-16 23:44:26 +0100229config GENERIC_BUG
230 def_bool y
231 depends on BUG
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233source "init/Kconfig"
234
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700235source "kernel/Kconfig.freezer"
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237menu "System Type"
238
Hyok S. Choi3c427972009-07-24 12:35:00 +0100239config MMU
240 bool "MMU-based Paged Memory Management Support"
241 default y
242 help
243 Select if you want MMU-based virtualised addressing space
244 support by paged memory management. If unsure, say 'Y'.
245
Russell Kingccf50e22010-03-15 19:03:06 +0000246#
247# The "ARM system type" choice list is ordered alphabetically by option
248# text. Please add new entries in the option alphabetic order.
249#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250choice
251 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000252 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254config ARCH_INTEGRATOR
255 bool "ARM Ltd. Integrator family"
256 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100257 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900259 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Russell King13edd862010-01-15 21:49:23 +0000261 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000262 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000263 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400264 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 help
266 Support for ARM's Integrator platform.
267
268config ARCH_REALVIEW
269 bool "ARM Ltd. RealView family"
270 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100271 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900272 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000273 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100274 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100275 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000276 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000277 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000278 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100279 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400280 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281 help
282 This enables support for ARM Ltd RealView boards.
283
284config ARCH_VERSATILE
285 bool "ARM Ltd. Versatile family"
286 select ARM_AMBA
287 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100288 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900289 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000290 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100291 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100292 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000293 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000294 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000295 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000296 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 help
298 This enables support for ARM Ltd Versatile board.
299
Russell Kingceade892010-02-11 21:44:53 +0000300config ARCH_VEXPRESS
301 bool "ARM Ltd. Versatile Express family"
302 select ARCH_WANT_OPTIONAL_GPIOLIB
303 select ARM_AMBA
304 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100305 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900306 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000307 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000308 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100309 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000310 select ICST
311 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000312 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000313 help
314 This enables support for the ARM Ltd Versatile Express boards.
315
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100316config ARCH_AT91
317 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100318 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700319 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100320 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100322 This enables support for systems based on the Atmel AT91RM9200,
323 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100324
Russell Kingccf50e22010-03-15 19:03:06 +0000325config ARCH_BCMRING
326 bool "Broadcom BCMRING"
327 depends on MMU
328 select CPU_V6
329 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100330 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100331 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000332 select GENERIC_CLOCKEVENTS
333 select ARCH_WANT_OPTIONAL_GPIOLIB
334 help
335 Support for Broadcom's BCMRing platform.
336
Rob Herring220e6cf2011-06-07 10:02:55 -0500337config ARCH_HIGHBANK
338 bool "Calxeda Highbank-based"
339 select ARCH_WANT_OPTIONAL_GPIOLIB
340 select ARM_AMBA
341 select ARM_GIC
342 select ARM_TIMER_SP804
343 select CLKDEV_LOOKUP
344 select CPU_V7
345 select GENERIC_CLOCKEVENTS
346 select HAVE_ARM_SCU
347 select USE_OF
348 help
349 Support for the Calxeda Highbank SoC based boards.
350
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000353 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000354 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400355 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000356 help
357 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300359config ARCH_CNS3XXX
360 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200361 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300362 select GENERIC_CLOCKEVENTS
363 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100364 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400365 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300366 help
367 Support for Cavium Networks CNS3XXX platform.
368
Russell King788c9702009-04-26 14:21:59 +0100369config ARCH_GEMINI
370 bool "Cortina Systems Gemini"
371 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100372 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000373 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100374 help
375 Support for the Cortina Systems Gemini family SoCs
376
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200377config ARCH_PRIMA2
378 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
379 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200380 select NO_IOPORT
381 select GENERIC_CLOCKEVENTS
382 select CLKDEV_LOOKUP
383 select GENERIC_IRQ_CHIP
384 select USE_OF
385 select ZONE_DMA
386 help
387 Support for CSR SiRFSoC ARM Cortex A9 Platform
388
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389config ARCH_EBSA110
390 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000391 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100392 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000393 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000394 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400395 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 help
397 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000398 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 Ethernet interface, two PCMCIA sockets, two serial ports and a
400 parallel port.
401
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000402config ARCH_EP93XX
403 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000405 select ARM_AMBA
406 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100407 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700408 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100409 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000410 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100411 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412 help
413 This enables support for the Cirrus EP93xx series of CPUs.
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415config ARCH_FOOTBRIDGE
416 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000419 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200420 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400421 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000422 help
423 Support for systems based on the DC21285 companion chip
424 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Russell King788c9702009-04-26 14:21:59 +0100426config ARCH_MXC
427 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100428 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100429 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100430 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100431 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800432 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100433 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200434 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100435 help
436 Support for Freescale MXC/iMX-based family of processors
437
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800438config ARCH_MXS
439 bool "Freescale MXS-based"
440 select GENERIC_CLOCKEVENTS
441 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100442 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100443 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800444 help
445 Support for Freescale MXS-based family of processors
446
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100447config ARCH_NETX
448 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100449 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000450 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100451 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100452 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000453 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100454 This enables support for systems based on the Hilscher NetX Soc
455
456config ARCH_H720X
457 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000458 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100459 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000460 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100461 help
462 This enables support for systems based on the Hynix HMS720x
463
Russell King3b938be2007-05-12 11:25:44 +0100464config ARCH_IOP13XX
465 bool "IOP13xx-based"
466 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000467 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100468 select PLAT_IOP
469 select PCI
470 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100471 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400472 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100473 help
474 Support for Intel's IOP13XX (XScale) family of processors.
475
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100476config ARCH_IOP32X
477 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100478 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100480 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100481 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100482 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000483 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100484 Support for Intel's 80219 and IOP32X (XScale) family of
485 processors.
486
487config ARCH_IOP33X
488 bool "IOP33x-based"
489 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000490 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100491 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100492 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100493 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100494 help
495 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Russell King3b938be2007-05-12 11:25:44 +0100497config ARCH_IXP23XX
498 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100499 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100501 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000502 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400503 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100504 help
Russell King3b938be2007-05-12 11:25:44 +0100505 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506
507config ARCH_IXP2000
508 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100509 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000510 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100511 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000512 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400513 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000514 help
515 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516
Russell King3b938be2007-05-12 11:25:44 +0100517config ARCH_IXP4XX
518 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100519 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100520 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000521 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100522 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100523 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000524 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100525 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100526 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100527 help
Russell King3b938be2007-05-12 11:25:44 +0100528 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100529
Saeed Bisharaedabd382009-08-06 15:12:43 +0300530config ARCH_DOVE
531 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300532 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300534 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 select GENERIC_CLOCKEVENTS
536 select PLAT_ORION
537 help
538 Support for the Marvell Dove SoC 88AP510
539
Saeed Bishara651c74c2008-06-22 22:45:06 +0200540config ARCH_KIRKWOOD
541 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000542 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200543 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700544 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200545 select GENERIC_CLOCKEVENTS
546 select PLAT_ORION
547 help
548 Support for the following Marvell Kirkwood series SoCs:
549 88F6180, 88F6192 and 88F6281.
550
Kevin Wells40805942010-07-27 08:49:04 -0700551config ARCH_LPC32XX
552 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100553 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700554 select CPU_ARM926T
555 select ARCH_REQUIRE_GPIOLIB
556 select HAVE_IDE
557 select ARM_AMBA
558 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100559 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700560 select GENERIC_CLOCKEVENTS
561 help
562 Support for the NXP LPC32XX family of processors
563
Russell King788c9702009-04-26 14:21:59 +0100564config ARCH_MV78XX0
565 bool "Marvell MV78xx0"
566 select CPU_FEROCEON
567 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700568 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100569 select GENERIC_CLOCKEVENTS
570 select PLAT_ORION
571 help
572 Support for the following Marvell MV78xx0 series SoCs:
573 MV781x0, MV782x0.
574
575config ARCH_ORION5X
576 bool "Marvell Orion"
577 depends on MMU
578 select CPU_FEROCEON
579 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700580 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100581 select GENERIC_CLOCKEVENTS
582 select PLAT_ORION
583 help
584 Support for the following Marvell Orion 5x series SoCs:
585 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
586 Orion-2 (5281), Orion-1-90 (6183).
587
588config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500589 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100590 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100591 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100592 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100593 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000594 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100595 select TICK_ONESHOT
596 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400597 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800598 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100599 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500600 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100601
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100602config ARCH_KS8695
603 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000604 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100605 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000606 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400607 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100608 help
609 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
610 System-on-Chip devices.
611
Russell King788c9702009-04-26 14:21:59 +0100612config ARCH_W90X900
613 bool "Nuvoton W90X900 CPU"
614 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100615 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100616 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100617 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100618 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200619 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100620 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
621 At present, the w90x900 has been renamed nuc900, regarding
622 the ARM series product line, you can login the following
623 link address to know more.
624
625 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
626 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400627
Erik Gillingc5f80062010-01-21 16:53:02 -0800628config ARCH_TEGRA
629 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000630 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100631 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800632 select GENERIC_CLOCKEVENTS
633 select GENERIC_GPIO
634 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000635 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700636 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800637 help
638 This enables support for NVIDIA Tegra based systems (Tegra APX,
639 Tegra 6xx and Tegra 2 series).
640
Jamie Ilesaf756552011-07-25 17:36:42 +0100641config ARCH_PICOXCELL
642 bool "Picochip picoXcell"
643 select ARCH_REQUIRE_GPIOLIB
644 select ARM_PATCH_PHYS_VIRT
645 select ARM_VIC
646 select CPU_V6K
647 select DW_APB_TIMER
648 select GENERIC_CLOCKEVENTS
649 select GENERIC_GPIO
650 select HAVE_SCHED_CLOCK
651 select HAVE_TCM
652 select NO_IOPORT
653 select USE_OF
654 help
655 This enables support for systems based on the Picochip picoXcell
656 family of Femtocell devices. The picoxcell support requires device tree
657 for all boards.
658
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100659config ARCH_PNX4008
660 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000661 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100662 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100664 help
665 This enables support for Philips PNX4008 mobile platform.
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700668 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100669 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500670 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100671 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100672 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100673 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700674 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100675 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000676 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000677 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800678 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800679 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800680 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800681 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200682 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200683 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000684 help
eric miao2c8086a2007-09-11 19:13:17 -0700685 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686
Russell King788c9702009-04-26 14:21:59 +0100687config ARCH_MSM
688 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500689 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800690 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700691 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800692 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800693 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800694 Support for Qualcomm MSM/QSD based systems. This runs on the
695 apps processor of the MSM/QSD and depends on a shared memory
696 interface to the modem processor which runs the baseband
697 stack and controls some vital subsystems
698 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800699
Magnus Dammc793c1b2010-02-05 11:14:49 +0000700config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900701 bool "Renesas SH-Mobile / R-Mobile"
702 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900703 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900704 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900705 select GENERIC_CLOCKEVENTS
706 select NO_IOPORT
707 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000708 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200709 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400710 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000711 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900712 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000713
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714config ARCH_RPC
715 bool "RiscPC"
716 select ARCH_ACORN
717 select FIQ
718 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100719 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100720 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000721 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000722 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100723 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000724 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200725 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400726 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 help
728 On the Acorn Risc-PC, Linux can support the internal IDE disk and
729 CD-ROM interface, serial and parallel port, and the floppy drive.
730
731config ARCH_SA1100
732 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100733 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000734 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100735 select ISA
Russell King05944d72006-11-30 20:43:51 +0000736 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500737 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100738 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000739 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100740 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700741 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000742 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100743 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700744 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200745 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400746 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000747 help
748 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749
750config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900751 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800752 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100753 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700754 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900755 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000756 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900757 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758 help
759 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
760 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000761 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762
Ben Dooks63b1f512010-04-30 16:32:26 +0900763 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300764 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900765 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
766
Ben Dooksa08ab632008-10-21 14:06:39 +0100767config ARCH_S3C64XX
768 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000769 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900770 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900771 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100772 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900773 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900774 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900775 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000776 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100777 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900778 select ARCH_REQUIRE_GPIOLIB
779 select SAMSUNG_CLKSRC
780 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900781 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900782 select S3C_DEV_NAND
783 select USB_ARCH_HAS_OHCI
784 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900785 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900786 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100787 help
788 Samsung S3C64XX series based systems
789
Kukjin Kim49b7a492010-09-07 15:47:18 +0900790config ARCH_S5P64X0
791 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900792 select CPU_V6
793 select GENERIC_GPIO
794 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900795 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900796 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900797 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900798 select GENERIC_CLOCKEVENTS
799 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900800 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900801 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900802 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900803 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
804 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900805
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200806config ARCH_S5PC100
807 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900808 select GENERIC_GPIO
809 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900810 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900811 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100812 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900813 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900814 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900815 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900816 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900817 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200818 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900819
Kukjin Kim170f4e42010-02-24 16:40:44 +0900820config ARCH_S5PV210
821 bool "Samsung S5PV210/S5PC110"
822 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900823 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900824 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900825 select GENERIC_GPIO
826 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900827 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900828 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900829 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900830 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900831 select GENERIC_CLOCKEVENTS
832 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900833 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900834 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900835 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400836 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900837 help
838 Samsung S5PV210/S5PC110 series based systems
839
Kukjin Kim83014572011-11-06 13:54:56 +0900840config ARCH_EXYNOS
841 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900842 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900843 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900844 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900845 select GENERIC_GPIO
846 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900847 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900848 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900849 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900850 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900851 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900852 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400853 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900854 help
Kukjin Kim83014572011-11-06 13:54:56 +0900855 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857config ARCH_SHARK
858 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000859 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100860 select ISA
861 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100862 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100863 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000864 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400865 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000866 help
867 Support for the StrongARM based Digital DNARD machine, also known
868 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
Hans J. Koch83ef3332010-09-17 18:13:56 +0200870config ARCH_TCC_926
871 bool "Telechips TCC ARM926-based systems"
Russell King234b6ce2011-05-08 14:09:47 +0100872 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200873 select CPU_ARM926T
874 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100875 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200876 select GENERIC_CLOCKEVENTS
877 help
878 Support for Telechips TCC ARM926-based systems.
879
Linus Walleijd98aac72009-04-27 10:21:46 +0100880config ARCH_U300
881 bool "ST-Ericsson U300 Series"
882 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100883 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100884 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000885 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100886 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100887 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200888 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100889 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100891 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900892 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100894 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400895 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100896 help
897 Support for ST-Ericsson U300 series mobile platforms.
898
Russell Kingccf50e22010-03-15 19:03:06 +0000899config ARCH_U8500
900 bool "ST-Ericsson U8500 Series"
901 select CPU_V7
902 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000903 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100904 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100905 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100906 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000907 help
908 Support for ST-Ericsson's Ux500 architecture
909
910config ARCH_NOMADIK
911 bool "STMicroelectronics Nomadik"
912 select ARM_AMBA
913 select ARM_VIC
914 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100915 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000916 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000917 select ARCH_REQUIRE_GPIOLIB
918 help
919 Support for the Nomadik platform by ST-Ericsson
920
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100921config ARCH_DAVINCI
922 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100923 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700924 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100925 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700926 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100927 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700928 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100929 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530930 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100931 help
932 Support for TI's DaVinci platform.
933
Russell King3b938be2007-05-12 11:25:44 +0100934config ARCH_OMAP
935 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700936 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700937 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100938 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700939 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700940 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000941 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800942 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100943 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200944 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100945
viresh kumarcee37e52010-04-01 12:31:05 +0100946config PLAT_SPEAR
947 bool "ST SPEAr"
948 select ARM_AMBA
949 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100950 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100951 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100952 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100953 select HAVE_CLK
954 help
955 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
956
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100957config ARCH_VT8500
958 bool "VIA/WonderMedia 85xx"
959 select CPU_ARM926T
960 select GENERIC_GPIO
961 select ARCH_HAS_CPUFREQ
962 select GENERIC_CLOCKEVENTS
963 select ARCH_REQUIRE_GPIOLIB
964 select HAVE_PWM
965 help
966 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800967
John Linnb85a3ef2011-06-20 11:47:27 -0600968config ARCH_ZYNQ
969 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800970 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800971 select GENERIC_CLOCKEVENTS
972 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600973 select ARM_GIC
974 select ARM_AMBA
975 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800976 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 help
John Linnb85a3ef2011-06-20 11:47:27 -0600978 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979endchoice
980
Russell Kingccf50e22010-03-15 19:03:06 +0000981#
982# This is sorted alphabetically by mach-* pathname. However, plat-*
983# Kconfigs may be included either alphabetically (according to the
984# plat- suffix) or along side the corresponding mach-* source.
985#
Russell King95b8f202010-01-14 11:43:54 +0000986source "arch/arm/mach-at91/Kconfig"
987
988source "arch/arm/mach-bcmring/Kconfig"
989
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990source "arch/arm/mach-clps711x/Kconfig"
991
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300992source "arch/arm/mach-cns3xxx/Kconfig"
993
Russell King95b8f202010-01-14 11:43:54 +0000994source "arch/arm/mach-davinci/Kconfig"
995
996source "arch/arm/mach-dove/Kconfig"
997
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000998source "arch/arm/mach-ep93xx/Kconfig"
999
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000source "arch/arm/mach-footbridge/Kconfig"
1001
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001002source "arch/arm/mach-gemini/Kconfig"
1003
Russell King95b8f202010-01-14 11:43:54 +00001004source "arch/arm/mach-h720x/Kconfig"
1005
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006source "arch/arm/mach-integrator/Kconfig"
1007
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001008source "arch/arm/mach-iop32x/Kconfig"
1009
1010source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
Dan Williams285f5fa2006-12-07 02:59:39 +01001012source "arch/arm/mach-iop13xx/Kconfig"
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014source "arch/arm/mach-ixp4xx/Kconfig"
1015
1016source "arch/arm/mach-ixp2000/Kconfig"
1017
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001018source "arch/arm/mach-ixp23xx/Kconfig"
1019
Russell King95b8f202010-01-14 11:43:54 +00001020source "arch/arm/mach-kirkwood/Kconfig"
1021
1022source "arch/arm/mach-ks8695/Kconfig"
1023
Kevin Wells40805942010-07-27 08:49:04 -07001024source "arch/arm/mach-lpc32xx/Kconfig"
1025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-msm/Kconfig"
1027
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001028source "arch/arm/mach-mv78xx0/Kconfig"
1029
Russell King95b8f202010-01-14 11:43:54 +00001030source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001032source "arch/arm/mach-mxs/Kconfig"
1033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001035
Russell King95b8f202010-01-14 11:43:54 +00001036source "arch/arm/mach-nomadik/Kconfig"
1037source "arch/arm/plat-nomadik/Kconfig"
1038
Tony Lindgrend48af152005-07-10 19:58:17 +01001039source "arch/arm/plat-omap/Kconfig"
1040
1041source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042
Tony Lindgren1dbae812005-11-10 14:26:51 +00001043source "arch/arm/mach-omap2/Kconfig"
1044
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001045source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001046
Russell King95b8f202010-01-14 11:43:54 +00001047source "arch/arm/mach-pxa/Kconfig"
1048source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049
Russell King95b8f202010-01-14 11:43:54 +00001050source "arch/arm/mach-mmp/Kconfig"
1051
1052source "arch/arm/mach-realview/Kconfig"
1053
1054source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001055
Ben Dookscf383672009-11-10 00:14:58 +00001056source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001057source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001058source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001059
viresh kumarcee37e52010-04-01 12:31:05 +01001060source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001061
Hans J. Koch83ef3332010-09-17 18:13:56 +02001062source "arch/arm/plat-tcc/Kconfig"
1063
Ben Dooksa21765a2007-02-11 18:31:01 +01001064if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001066source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001067source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001068source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001069source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001070endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071
Ben Dooksa08ab632008-10-21 14:06:39 +01001072if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001073source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001074endif
1075
Kukjin Kim49b7a492010-09-07 15:47:18 +09001076source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001077
Byungho Min5a7652f2009-06-23 21:39:42 +09001078source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001079
Kukjin Kim170f4e42010-02-24 16:40:44 +09001080source "arch/arm/mach-s5pv210/Kconfig"
1081
Kukjin Kim83014572011-11-06 13:54:56 +09001082source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001083
Russell King882d01f2010-03-02 23:40:15 +00001084source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001085
Erik Gillingc5f80062010-01-21 16:53:02 -08001086source "arch/arm/mach-tegra/Kconfig"
1087
Russell King95b8f202010-01-14 11:43:54 +00001088source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001089
Russell King95b8f202010-01-14 11:43:54 +00001090source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
1092source "arch/arm/mach-versatile/Kconfig"
1093
Russell Kingceade892010-02-11 21:44:53 +00001094source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001095source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001096
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001097source "arch/arm/mach-vt8500/Kconfig"
1098
wanzongshun7ec80dd2008-12-03 03:55:38 +01001099source "arch/arm/mach-w90x900/Kconfig"
1100
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101# Definitions to make life easier
1102config ARCH_ACORN
1103 bool
1104
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001105config PLAT_IOP
1106 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001107 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001108 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001109
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001110config PLAT_ORION
1111 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001112 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001113 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001114 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001115
Eric Miaobd5ce432009-01-20 12:06:01 +08001116config PLAT_PXA
1117 bool
1118
Russell Kingf4b8b312010-01-14 12:48:06 +00001119config PLAT_VERSATILE
1120 bool
1121
Russell Kinge3887712010-01-14 13:30:16 +00001122config ARM_TIMER_SP804
1123 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001124 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001125
Linus Torvalds1da177e2005-04-16 15:20:36 -07001126source arch/arm/mm/Kconfig
1127
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001128config IWMMXT
1129 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001130 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1131 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001132 help
1133 Enable support for iWMMXt context switching at run time if
1134 running on a CPU that supports it.
1135
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1137config XSCALE_PMU
1138 bool
1139 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1140 default y
1141
Jamie Iles0f4f0672010-02-02 20:23:15 +01001142config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001143 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001144 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001145 default y
1146 bool
1147
eric miao52108642010-12-13 09:42:34 +01001148config MULTI_IRQ_HANDLER
1149 bool
1150 help
1151 Allow each machine to specify it's own IRQ handler at run time.
1152
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001153if !MMU
1154source "arch/arm/Kconfig-nommu"
1155endif
1156
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001157config ARM_ERRATA_411920
1158 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001159 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001160 help
1161 Invalidation of the Instruction Cache operation can
1162 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1163 It does not affect the MPCore. This option enables the ARM Ltd.
1164 recommended workaround.
1165
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001166config ARM_ERRATA_430973
1167 bool "ARM errata: Stale prediction on replaced interworking branch"
1168 depends on CPU_V7
1169 help
1170 This option enables the workaround for the 430973 Cortex-A8
1171 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1172 interworking branch is replaced with another code sequence at the
1173 same virtual address, whether due to self-modifying code or virtual
1174 to physical address re-mapping, Cortex-A8 does not recover from the
1175 stale interworking branch prediction. This results in Cortex-A8
1176 executing the new code sequence in the incorrect ARM or Thumb state.
1177 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1178 and also flushes the branch target cache at every context switch.
1179 Note that setting specific bits in the ACTLR register may not be
1180 available in non-secure mode.
1181
Catalin Marinas855c5512009-04-30 17:06:15 +01001182config ARM_ERRATA_458693
1183 bool "ARM errata: Processor deadlock when a false hazard is created"
1184 depends on CPU_V7
1185 help
1186 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1187 erratum. For very specific sequences of memory operations, it is
1188 possible for a hazard condition intended for a cache line to instead
1189 be incorrectly associated with a different cache line. This false
1190 hazard might then cause a processor deadlock. The workaround enables
1191 the L1 caching of the NEON accesses and disables the PLD instruction
1192 in the ACTLR register. Note that setting specific bits in the ACTLR
1193 register may not be available in non-secure mode.
1194
Catalin Marinas0516e462009-04-30 17:06:20 +01001195config ARM_ERRATA_460075
1196 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1197 depends on CPU_V7
1198 help
1199 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1200 erratum. Any asynchronous access to the L2 cache may encounter a
1201 situation in which recent store transactions to the L2 cache are lost
1202 and overwritten with stale memory contents from external memory. The
1203 workaround disables the write-allocate mode for the L2 cache via the
1204 ACTLR register. Note that setting specific bits in the ACTLR register
1205 may not be available in non-secure mode.
1206
Will Deacon9f050272010-09-14 09:51:43 +01001207config ARM_ERRATA_742230
1208 bool "ARM errata: DMB operation may be faulty"
1209 depends on CPU_V7 && SMP
1210 help
1211 This option enables the workaround for the 742230 Cortex-A9
1212 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1213 between two write operations may not ensure the correct visibility
1214 ordering of the two writes. This workaround sets a specific bit in
1215 the diagnostic register of the Cortex-A9 which causes the DMB
1216 instruction to behave as a DSB, ensuring the correct behaviour of
1217 the two writes.
1218
Will Deacona672e992010-09-14 09:53:02 +01001219config ARM_ERRATA_742231
1220 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1221 depends on CPU_V7 && SMP
1222 help
1223 This option enables the workaround for the 742231 Cortex-A9
1224 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1225 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1226 accessing some data located in the same cache line, may get corrupted
1227 data due to bad handling of the address hazard when the line gets
1228 replaced from one of the CPUs at the same time as another CPU is
1229 accessing it. This workaround sets specific bits in the diagnostic
1230 register of the Cortex-A9 which reduces the linefill issuing
1231 capabilities of the processor.
1232
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001233config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001234 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001235 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001236 help
1237 The PL310 L2 cache controller implements three types of Clean &
1238 Invalidate maintenance operations: by Physical Address
1239 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1240 They are architecturally defined to behave as the execution of a
1241 clean operation followed immediately by an invalidate operation,
1242 both performing to the same memory location. This functionality
1243 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001244 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001245
1246config ARM_ERRATA_720789
1247 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1248 depends on CPU_V7 && SMP
1249 help
1250 This option enables the workaround for the 720789 Cortex-A9 (prior to
1251 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1252 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1253 As a consequence of this erratum, some TLB entries which should be
1254 invalidated are not, resulting in an incoherency in the system page
1255 tables. The workaround changes the TLB flushing routines to invalidate
1256 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001257
Russell King1f0090a2011-03-16 23:35:25 +00001258config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001259 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001260 depends on CACHE_L2X0
1261 help
1262 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1263 operation (offset 0x7FC). This operation runs in background so that
1264 PL310 can handle normal accesses while it is in progress. Under very
1265 rare circumstances, due to this erratum, write data can be lost when
1266 PL310 treats a cacheable write transaction during a Clean &
1267 Invalidate by Way operation.
1268
Will Deacon475d92f2010-09-28 14:02:02 +01001269config ARM_ERRATA_743622
1270 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1271 depends on CPU_V7
1272 help
1273 This option enables the workaround for the 743622 Cortex-A9
1274 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1275 optimisation in the Cortex-A9 Store Buffer may lead to data
1276 corruption. This workaround sets a specific bit in the diagnostic
1277 register of the Cortex-A9 which disables the Store Buffer
1278 optimisation, preventing the defect from occurring. This has no
1279 visible impact on the overall performance or power consumption of the
1280 processor.
1281
Will Deacon9a27c272011-02-18 16:36:35 +01001282config ARM_ERRATA_751472
1283 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1284 depends on CPU_V7 && SMP
1285 help
1286 This option enables the workaround for the 751472 Cortex-A9 (prior
1287 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1288 completion of a following broadcasted operation if the second
1289 operation is received by a CPU before the ICIALLUIS has completed,
1290 potentially leading to corrupted entries in the cache or TLB.
1291
Will Deaconfa0ce402011-11-14 17:24:57 +01001292config PL310_ERRATA_753970
1293 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001294 depends on CACHE_PL310
1295 help
1296 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1297
1298 Under some condition the effect of cache sync operation on
1299 the store buffer still remains when the operation completes.
1300 This means that the store buffer is always asked to drain and
1301 this prevents it from merging any further writes. The workaround
1302 is to replace the normal offset of cache sync operation (0x730)
1303 by another offset targeting an unmapped PL310 register 0x740.
1304 This has the same effect as the cache sync operation: store buffer
1305 drain and waiting for all buffers empty.
1306
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001307config ARM_ERRATA_754322
1308 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1309 depends on CPU_V7
1310 help
1311 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1312 r3p*) erratum. A speculative memory access may cause a page table walk
1313 which starts prior to an ASID switch but completes afterwards. This
1314 can populate the micro-TLB with a stale entry which may be hit with
1315 the new ASID. This workaround places two dsb instructions in the mm
1316 switching code so that no page table walks can cross the ASID switch.
1317
Will Deacon5dab26a2011-03-04 12:38:54 +01001318config ARM_ERRATA_754327
1319 bool "ARM errata: no automatic Store Buffer drain"
1320 depends on CPU_V7 && SMP
1321 help
1322 This option enables the workaround for the 754327 Cortex-A9 (prior to
1323 r2p0) erratum. The Store Buffer does not have any automatic draining
1324 mechanism and therefore a livelock may occur if an external agent
1325 continuously polls a memory location waiting to observe an update.
1326 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1327 written polling loops from denying visibility of updates to memory.
1328
Catalin Marinas145e10e2011-08-15 11:04:41 +01001329config ARM_ERRATA_364296
1330 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1331 depends on CPU_V6 && !SMP
1332 help
1333 This options enables the workaround for the 364296 ARM1136
1334 r0p2 erratum (possible cache data corruption with
1335 hit-under-miss enabled). It sets the undocumented bit 31 in
1336 the auxiliary control register and the FI bit in the control
1337 register, thus disabling hit-under-miss without putting the
1338 processor into full low interrupt latency mode. ARM11MPCore
1339 is not affected.
1340
Will Deaconf630c1b2011-09-15 11:45:15 +01001341config ARM_ERRATA_764369
1342 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1343 depends on CPU_V7 && SMP
1344 help
1345 This option enables the workaround for erratum 764369
1346 affecting Cortex-A9 MPCore with two or more processors (all
1347 current revisions). Under certain timing circumstances, a data
1348 cache line maintenance operation by MVA targeting an Inner
1349 Shareable memory region may fail to proceed up to either the
1350 Point of Coherency or to the Point of Unification of the
1351 system. This workaround adds a DSB instruction before the
1352 relevant cache maintenance functions and sets a specific bit
1353 in the diagnostic control register of the SCU.
1354
Will Deacon11ed0ba2011-11-14 17:24:58 +01001355config PL310_ERRATA_769419
1356 bool "PL310 errata: no automatic Store Buffer drain"
1357 depends on CACHE_L2X0
1358 help
1359 On revisions of the PL310 prior to r3p2, the Store Buffer does
1360 not automatically drain. This can cause normal, non-cacheable
1361 writes to be retained when the memory system is idle, leading
1362 to suboptimal I/O performance for drivers using coherent DMA.
1363 This option adds a write barrier to the cpu_idle loop so that,
1364 on systems with an outer cache, the store buffer is drained
1365 explicitly.
1366
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367endmenu
1368
1369source "arch/arm/common/Kconfig"
1370
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371menu "Bus support"
1372
1373config ARM_AMBA
1374 bool
1375
1376config ISA
1377 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378 help
1379 Find out whether you have ISA slots on your motherboard. ISA is the
1380 name of a bus system, i.e. the way the CPU talks to the other stuff
1381 inside your box. Other bus systems are PCI, EISA, MicroChannel
1382 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1383 newer boards don't support it. If you have ISA, say Y, otherwise N.
1384
Russell King065909b2006-01-04 15:44:16 +00001385# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386config ISA_DMA
1387 bool
Russell King065909b2006-01-04 15:44:16 +00001388 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389
Russell King065909b2006-01-04 15:44:16 +00001390# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001391config ISA_DMA_API
1392 bool
Al Viro5cae8412005-05-04 05:39:22 +01001393
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001395 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 help
1397 Find out whether you have a PCI motherboard. PCI is the name of a
1398 bus system, i.e. the way the CPU talks to the other stuff inside
1399 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1400 VESA. If you have PCI, say Y, otherwise N.
1401
Anton Vorontsov52882172010-04-19 13:20:49 +01001402config PCI_DOMAINS
1403 bool
1404 depends on PCI
1405
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001406config PCI_NANOENGINE
1407 bool "BSE nanoEngine PCI support"
1408 depends on SA1100_NANOENGINE
1409 help
1410 Enable PCI on the BSE nanoEngine board.
1411
Matthew Wilcox36e23592007-07-10 10:54:40 -06001412config PCI_SYSCALL
1413 def_bool PCI
1414
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415# Select the host bridge type
1416config PCI_HOST_VIA82C505
1417 bool
1418 depends on PCI && ARCH_SHARK
1419 default y
1420
Mike Rapoporta0113a92007-11-25 08:55:34 +01001421config PCI_HOST_ITE8152
1422 bool
1423 depends on PCI && MACH_ARMCORE
1424 default y
1425 select DMABOUNCE
1426
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427source "drivers/pci/Kconfig"
1428
1429source "drivers/pcmcia/Kconfig"
1430
1431endmenu
1432
1433menu "Kernel Features"
1434
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001435source "kernel/time/Kconfig"
1436
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001438 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001439 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001440 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001441 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001442 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001443 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001444 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001445 depends on MMU
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001446 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001447 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001448 help
1449 This enables support for systems with more than one CPU. If you have
1450 a system with only one CPU, like most personal computers, say N. If
1451 you have a system with more than one CPU, say Y.
1452
1453 If you say N here, the kernel will run on single and multiprocessor
1454 machines, but will use only one CPU of a multiprocessor machine. If
1455 you say Y here, the kernel will run on many, but not all, single
1456 processor machines. On a single processor machine, the kernel will
1457 run faster if you say N here.
1458
Paul Bolle395cf962011-08-15 02:02:26 +02001459 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001461 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462
1463 If you don't know what to do here, say N.
1464
Russell Kingf00ec482010-09-04 10:47:48 +01001465config SMP_ON_UP
1466 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1467 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001468 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001469 default y
1470 help
1471 SMP kernels contain instructions which fail on non-SMP processors.
1472 Enabling this option allows the kernel to modify itself to make
1473 these instructions safe. Disabling it allows about 1K of space
1474 savings.
1475
1476 If you don't know what to do here, say Y.
1477
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001478config ARM_CPU_TOPOLOGY
1479 bool "Support cpu topology definition"
1480 depends on SMP && CPU_V7
1481 default y
1482 help
1483 Support ARM cpu topology definition. The MPIDR register defines
1484 affinity between processors which is then used to describe the cpu
1485 topology of an ARM System.
1486
1487config SCHED_MC
1488 bool "Multi-core scheduler support"
1489 depends on ARM_CPU_TOPOLOGY
1490 help
1491 Multi-core scheduler support improves the CPU scheduler's decision
1492 making when dealing with multi-core CPU chips at a cost of slightly
1493 increased overhead in some places. If unsure say N here.
1494
1495config SCHED_SMT
1496 bool "SMT scheduler support"
1497 depends on ARM_CPU_TOPOLOGY
1498 help
1499 Improves the CPU scheduler's decision making when dealing with
1500 MultiThreading at a cost of slightly increased overhead in some
1501 places. If unsure say N here.
1502
Russell Kinga8cbcd92009-05-16 11:51:14 +01001503config HAVE_ARM_SCU
1504 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001505 help
1506 This option enables support for the ARM system coherency unit
1507
Russell Kingf32f4ce2009-05-16 12:14:21 +01001508config HAVE_ARM_TWD
1509 bool
1510 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001511 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001512 help
1513 This options enables support for the ARM timer and watchdog unit
1514
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001515choice
1516 prompt "Memory split"
1517 default VMSPLIT_3G
1518 help
1519 Select the desired split between kernel and user memory.
1520
1521 If you are not absolutely sure what you are doing, leave this
1522 option alone!
1523
1524 config VMSPLIT_3G
1525 bool "3G/1G user/kernel split"
1526 config VMSPLIT_2G
1527 bool "2G/2G user/kernel split"
1528 config VMSPLIT_1G
1529 bool "1G/3G user/kernel split"
1530endchoice
1531
1532config PAGE_OFFSET
1533 hex
1534 default 0x40000000 if VMSPLIT_1G
1535 default 0x80000000 if VMSPLIT_2G
1536 default 0xC0000000
1537
Linus Torvalds1da177e2005-04-16 15:20:36 -07001538config NR_CPUS
1539 int "Maximum number of CPUs (2-32)"
1540 range 2 32
1541 depends on SMP
1542 default "4"
1543
Russell Kinga054a812005-11-02 22:24:33 +00001544config HOTPLUG_CPU
1545 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1546 depends on SMP && HOTPLUG && EXPERIMENTAL
1547 help
1548 Say Y here to experiment with turning CPUs off and on. CPUs
1549 can be controlled through /sys/devices/system/cpu.
1550
Russell King37ee16a2005-11-08 19:08:05 +00001551config LOCAL_TIMERS
1552 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001553 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001554 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001555 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001556 help
1557 Enable support for local timers on SMP platforms, rather then the
1558 legacy IPI broadcast method. Local timers allows the system
1559 accounting to be spread across the timer interval, preventing a
1560 "thundering herd" at every timer tick.
1561
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001562source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001563
Russell Kingf8065812006-03-02 22:41:59 +00001564config HZ
1565 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001566 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001567 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001568 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001569 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001570 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001571 default 100
1572
Catalin Marinas16c79652009-07-24 12:33:02 +01001573config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001574 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001575 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001576 select AEABI
1577 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001578 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001579 help
1580 By enabling this option, the kernel will be compiled in
1581 Thumb-2 mode. A compiler/assembler that understand the unified
1582 ARM-Thumb syntax is needed.
1583
1584 If unsure, say N.
1585
Dave Martin6f685c52011-03-03 11:41:12 +01001586config THUMB2_AVOID_R_ARM_THM_JUMP11
1587 bool "Work around buggy Thumb-2 short branch relocations in gas"
1588 depends on THUMB2_KERNEL && MODULES
1589 default y
1590 help
1591 Various binutils versions can resolve Thumb-2 branches to
1592 locally-defined, preemptible global symbols as short-range "b.n"
1593 branch instructions.
1594
1595 This is a problem, because there's no guarantee the final
1596 destination of the symbol, or any candidate locations for a
1597 trampoline, are within range of the branch. For this reason, the
1598 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1599 relocation in modules at all, and it makes little sense to add
1600 support.
1601
1602 The symptom is that the kernel fails with an "unsupported
1603 relocation" error when loading some modules.
1604
1605 Until fixed tools are available, passing
1606 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1607 code which hits this problem, at the cost of a bit of extra runtime
1608 stack usage in some cases.
1609
1610 The problem is described in more detail at:
1611 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1612
1613 Only Thumb-2 kernels are affected.
1614
1615 Unless you are sure your tools don't have this problem, say Y.
1616
Catalin Marinas0becb082009-07-24 12:32:53 +01001617config ARM_ASM_UNIFIED
1618 bool
1619
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001620config AEABI
1621 bool "Use the ARM EABI to compile the kernel"
1622 help
1623 This option allows for the kernel to be compiled using the latest
1624 ARM ABI (aka EABI). This is only useful if you are using a user
1625 space environment that is also compiled with EABI.
1626
1627 Since there are major incompatibilities between the legacy ABI and
1628 EABI, especially with regard to structure member alignment, this
1629 option also changes the kernel syscall calling convention to
1630 disambiguate both ABIs and allow for backward compatibility support
1631 (selected with CONFIG_OABI_COMPAT).
1632
1633 To use this you need GCC version 4.0.0 or later.
1634
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001635config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001636 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001637 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001638 default y
1639 help
1640 This option preserves the old syscall interface along with the
1641 new (ARM EABI) one. It also provides a compatibility layer to
1642 intercept syscalls that have structure arguments which layout
1643 in memory differs between the legacy ABI and the new ARM EABI
1644 (only for non "thumb" binaries). This option adds a tiny
1645 overhead to all syscalls and produces a slightly larger kernel.
1646 If you know you'll be using only pure EABI user space then you
1647 can say N here. If this option is not selected and you attempt
1648 to execute a legacy ABI binary then the result will be
1649 UNPREDICTABLE (in fact it can be predicted that it won't work
1650 at all). If in doubt say Y.
1651
Mel Gormaneb335752009-05-13 17:34:48 +01001652config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001653 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001654
Russell King05944d72006-11-30 20:43:51 +00001655config ARCH_SPARSEMEM_ENABLE
1656 bool
1657
Russell King07a2f732008-10-01 21:39:58 +01001658config ARCH_SPARSEMEM_DEFAULT
1659 def_bool ARCH_SPARSEMEM_ENABLE
1660
Russell King05944d72006-11-30 20:43:51 +00001661config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001662 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001663
Will Deacon7b7bf492011-05-19 13:21:14 +01001664config HAVE_ARCH_PFN_VALID
1665 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1666
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001667config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001668 bool "High Memory Support"
1669 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001670 help
1671 The address space of ARM processors is only 4 Gigabytes large
1672 and it has to accommodate user address space, kernel address
1673 space as well as some memory mapped IO. That means that, if you
1674 have a large amount of physical memory and/or IO, not all of the
1675 memory can be "permanently mapped" by the kernel. The physical
1676 memory that is not permanently mapped is called "high memory".
1677
1678 Depending on the selected kernel/user memory split, minimum
1679 vmalloc space and actual amount of RAM, you may not need this
1680 option which should result in a slightly faster kernel.
1681
1682 If unsure, say n.
1683
Russell King65cec8e2009-08-17 20:02:06 +01001684config HIGHPTE
1685 bool "Allocate 2nd-level pagetables from highmem"
1686 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001687
Jamie Iles1b8873a2010-02-02 20:25:44 +01001688config HW_PERF_EVENTS
1689 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001690 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001691 default y
1692 help
1693 Enable hardware performance counter support for perf events. If
1694 disabled, perf events will use software events only.
1695
Dave Hansen3f22ab22005-06-23 00:07:43 -07001696source "mm/Kconfig"
1697
Magnus Dammc1b2d972010-07-05 10:00:11 +01001698config FORCE_MAX_ZONEORDER
1699 int "Maximum zone order" if ARCH_SHMOBILE
1700 range 11 64 if ARCH_SHMOBILE
1701 default "9" if SA1111
1702 default "11"
1703 help
1704 The kernel memory allocator divides physically contiguous memory
1705 blocks into "zones", where each zone is a power of two number of
1706 pages. This option selects the largest power of two that the kernel
1707 keeps in the memory allocator. If you need to allocate very large
1708 blocks of physically contiguous memory, then you may need to
1709 increase this value.
1710
1711 This config option is actually maximum order plus one. For example,
1712 a value of 11 means that the largest free memory block is 2^10 pages.
1713
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714config LEDS
1715 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001716 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001717 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001718 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1719 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001720 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001721 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001722 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723 help
1724 If you say Y here, the LEDs on your machine will be used
1725 to provide useful information about your current system status.
1726
1727 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1728 be able to select which LEDs are active using the options below. If
1729 you are compiling a kernel for the EBSA-110 or the LART however, the
1730 red LED will simply flash regularly to indicate that the system is
1731 still functional. It is safe to say Y here if you have a CATS
1732 system, but the driver will do nothing.
1733
1734config LEDS_TIMER
1735 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001736 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1737 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001739 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740 default y if ARCH_EBSA110
1741 help
1742 If you say Y here, one of the system LEDs (the green one on the
1743 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1744 will flash regularly to indicate that the system is still
1745 operational. This is mainly useful to kernel hackers who are
1746 debugging unstable kernels.
1747
1748 The LART uses the same LED for both Timer LED and CPU usage LED
1749 functions. You may choose to use both, but the Timer LED function
1750 will overrule the CPU usage LED.
1751
1752config LEDS_CPU
1753 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001754 !ARCH_OMAP) \
1755 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1756 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 depends on LEDS
1758 help
1759 If you say Y here, the red LED will be used to give a good real
1760 time indication of CPU usage, by lighting whenever the idle task
1761 is not currently executing.
1762
1763 The LART uses the same LED for both Timer LED and CPU usage LED
1764 functions. You may choose to use both, but the Timer LED function
1765 will overrule the CPU usage LED.
1766
1767config ALIGNMENT_TRAP
1768 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001769 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001771 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001773 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1775 address divisible by 4. On 32-bit ARM processors, these non-aligned
1776 fetch/store instructions will be emulated in software if you say
1777 here, which has a severe performance impact. This is necessary for
1778 correct operation of some network protocols. With an IP-only
1779 configuration it is safe to say N, otherwise say Y.
1780
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001781config UACCESS_WITH_MEMCPY
1782 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1783 depends on MMU && EXPERIMENTAL
1784 default y if CPU_FEROCEON
1785 help
1786 Implement faster copy_to_user and clear_user methods for CPU
1787 cores where a 8-word STM instruction give significantly higher
1788 memory write throughput than a sequence of individual 32bit stores.
1789
1790 A possible side effect is a slight increase in scheduling latency
1791 between threads sharing the same address space if they invoke
1792 such copy operations with large buffers.
1793
1794 However, if the CPU data cache is using a write-allocate mode,
1795 this option is unlikely to provide any performance gain.
1796
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001797config SECCOMP
1798 bool
1799 prompt "Enable seccomp to safely compute untrusted bytecode"
1800 ---help---
1801 This kernel feature is useful for number crunching applications
1802 that may need to compute untrusted bytecode during their
1803 execution. By using pipes or other transports made available to
1804 the process as file descriptors supporting the read/write
1805 syscalls, it's possible to isolate those applications in
1806 their own address space using seccomp. Once seccomp is
1807 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1808 and the task is only allowed to execute a few safe syscalls
1809 defined by each seccomp mode.
1810
Nicolas Pitrec743f382010-05-24 23:55:42 -04001811config CC_STACKPROTECTOR
1812 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001813 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001814 help
1815 This option turns on the -fstack-protector GCC feature. This
1816 feature puts, at the beginning of functions, a canary value on
1817 the stack just before the return address, and validates
1818 the value just before actually returning. Stack based buffer
1819 overflows (that need to overwrite this return address) now also
1820 overwrite the canary, which gets detected and the attack is then
1821 neutralized via a kernel panic.
1822 This feature requires gcc version 4.2 or above.
1823
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001824config DEPRECATED_PARAM_STRUCT
1825 bool "Provide old way to pass kernel parameters"
1826 help
1827 This was deprecated in 2001 and announced to live on for 5 years.
1828 Some old boot loaders still use this way.
1829
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830endmenu
1831
1832menu "Boot options"
1833
Grant Likely9eb8f672011-04-28 14:27:20 -06001834config USE_OF
1835 bool "Flattened Device Tree support"
1836 select OF
1837 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001838 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001839 help
1840 Include support for flattened device tree machine descriptions.
1841
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842# Compressed boot loader in ROM. Yes, we really want to ask about
1843# TEXT and BSS so we preserve their values in the config files.
1844config ZBOOT_ROM_TEXT
1845 hex "Compressed ROM boot loader base address"
1846 default "0"
1847 help
1848 The physical address at which the ROM-able zImage is to be
1849 placed in the target. Platforms which normally make use of
1850 ROM-able zImage formats normally set this to a suitable
1851 value in their defconfig file.
1852
1853 If ZBOOT_ROM is not enabled, this has no effect.
1854
1855config ZBOOT_ROM_BSS
1856 hex "Compressed ROM boot loader BSS address"
1857 default "0"
1858 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001859 The base address of an area of read/write memory in the target
1860 for the ROM-able zImage which must be available while the
1861 decompressor is running. It must be large enough to hold the
1862 entire decompressed kernel plus an additional 128 KiB.
1863 Platforms which normally make use of ROM-able zImage formats
1864 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001865
1866 If ZBOOT_ROM is not enabled, this has no effect.
1867
1868config ZBOOT_ROM
1869 bool "Compressed boot loader in ROM/flash"
1870 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1871 help
1872 Say Y here if you intend to execute your compressed kernel image
1873 (zImage) directly from ROM or flash. If unsure, say N.
1874
Simon Horman090ab3f2011-04-26 06:29:53 +01001875choice
1876 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1877 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1878 default ZBOOT_ROM_NONE
1879 help
1880 Include experimental SD/MMC loading code in the ROM-able zImage.
1881 With this enabled it is possible to write the the ROM-able zImage
1882 kernel image to an MMC or SD card and boot the kernel straight
1883 from the reset vector. At reset the processor Mask ROM will load
1884 the first part of the the ROM-able zImage which in turn loads the
1885 rest the kernel image to RAM.
1886
1887config ZBOOT_ROM_NONE
1888 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1889 help
1890 Do not load image from SD or MMC
1891
Simon Hormanf45b1142011-01-11 04:01:08 +01001892config ZBOOT_ROM_MMCIF
1893 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001894 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001895 Load image from MMCIF hardware block.
1896
1897config ZBOOT_ROM_SH_MOBILE_SDHI
1898 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1899 help
1900 Load image from SDHI hardware block
1901
1902endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001903
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001904config ARM_APPENDED_DTB
1905 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1906 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1907 help
1908 With this option, the boot code will look for a device tree binary
1909 (DTB) appended to zImage
1910 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1911
1912 This is meant as a backward compatibility convenience for those
1913 systems with a bootloader that can't be upgraded to accommodate
1914 the documented boot protocol using a device tree.
1915
1916 Beware that there is very little in terms of protection against
1917 this option being confused by leftover garbage in memory that might
1918 look like a DTB header after a reboot if no actual DTB is appended
1919 to zImage. Do not leave this option active in a production kernel
1920 if you don't intend to always append a DTB. Proper passing of the
1921 location into r2 of a bootloader provided DTB is always preferable
1922 to this option.
1923
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001924config ARM_ATAG_DTB_COMPAT
1925 bool "Supplement the appended DTB with traditional ATAG information"
1926 depends on ARM_APPENDED_DTB
1927 help
1928 Some old bootloaders can't be updated to a DTB capable one, yet
1929 they provide ATAGs with memory configuration, the ramdisk address,
1930 the kernel cmdline string, etc. Such information is dynamically
1931 provided by the bootloader and can't always be stored in a static
1932 DTB. To allow a device tree enabled kernel to be used with such
1933 bootloaders, this option allows zImage to extract the information
1934 from the ATAG list and store it at run time into the appended DTB.
1935
Linus Torvalds1da177e2005-04-16 15:20:36 -07001936config CMDLINE
1937 string "Default kernel command string"
1938 default ""
1939 help
1940 On some architectures (EBSA110 and CATS), there is currently no way
1941 for the boot loader to pass arguments to the kernel. For these
1942 architectures, you should supply some command-line options at build
1943 time by entering them here. As a minimum, you should specify the
1944 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1945
Victor Boivie4394c122011-05-04 17:07:55 +01001946choice
1947 prompt "Kernel command line type" if CMDLINE != ""
1948 default CMDLINE_FROM_BOOTLOADER
1949
1950config CMDLINE_FROM_BOOTLOADER
1951 bool "Use bootloader kernel arguments if available"
1952 help
1953 Uses the command-line options passed by the boot loader. If
1954 the boot loader doesn't provide any, the default kernel command
1955 string provided in CMDLINE will be used.
1956
1957config CMDLINE_EXTEND
1958 bool "Extend bootloader kernel arguments"
1959 help
1960 The command-line arguments provided by the boot loader will be
1961 appended to the default kernel command string.
1962
Alexander Holler92d20402010-02-16 19:04:53 +01001963config CMDLINE_FORCE
1964 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001965 help
1966 Always use the default kernel command string, even if the boot
1967 loader passes other arguments to the kernel.
1968 This is useful if you cannot or don't want to change the
1969 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001970endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001971
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972config XIP_KERNEL
1973 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00001974 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975 help
1976 Execute-In-Place allows the kernel to run from non-volatile storage
1977 directly addressable by the CPU, such as NOR flash. This saves RAM
1978 space since the text section of the kernel is not loaded from flash
1979 to RAM. Read-write sections, such as the data section and stack,
1980 are still copied to RAM. The XIP kernel is not compressed since
1981 it has to run directly from flash, so it will take more space to
1982 store it. The flash address used to link the kernel object files,
1983 and for storing it, is configuration dependent. Therefore, if you
1984 say Y here, you must know the proper physical address where to
1985 store the kernel image depending on your own flash memory usage.
1986
1987 Also note that the make target becomes "make xipImage" rather than
1988 "make zImage" or "make Image". The final kernel binary to put in
1989 ROM memory will be arch/arm/boot/xipImage.
1990
1991 If unsure, say N.
1992
1993config XIP_PHYS_ADDR
1994 hex "XIP Kernel Physical Location"
1995 depends on XIP_KERNEL
1996 default "0x00080000"
1997 help
1998 This is the physical address in your flash memory the kernel will
1999 be linked for and stored to. This address is dependent on your
2000 own flash usage.
2001
Richard Purdiec587e4a2007-02-06 21:29:00 +01002002config KEXEC
2003 bool "Kexec system call (EXPERIMENTAL)"
2004 depends on EXPERIMENTAL
2005 help
2006 kexec is a system call that implements the ability to shutdown your
2007 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002008 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002009 you can start any kernel with it, not just Linux.
2010
2011 It is an ongoing process to be certain the hardware in a machine
2012 is properly shutdown, so do not be surprised if this code does not
2013 initially work for you. It may help to enable device hotplugging
2014 support.
2015
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002016config ATAGS_PROC
2017 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002018 depends on KEXEC
2019 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002020 help
2021 Should the atags used to boot the kernel be exported in an "atags"
2022 file in procfs. Useful with kexec.
2023
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002024config CRASH_DUMP
2025 bool "Build kdump crash kernel (EXPERIMENTAL)"
2026 depends on EXPERIMENTAL
2027 help
2028 Generate crash dump after being started by kexec. This should
2029 be normally only set in special crash dump kernels which are
2030 loaded in the main kernel with kexec-tools into a specially
2031 reserved region and then later executed after a crash by
2032 kdump/kexec. The crash dump kernel must be compiled to a
2033 memory address not used by the main kernel
2034
2035 For more details see Documentation/kdump/kdump.txt
2036
Eric Miaoe69edc792010-07-05 15:56:50 +02002037config AUTO_ZRELADDR
2038 bool "Auto calculation of the decompressed kernel image address"
2039 depends on !ZBOOT_ROM && !ARCH_U300
2040 help
2041 ZRELADDR is the physical address where the decompressed kernel
2042 image will be placed. If AUTO_ZRELADDR is selected, the address
2043 will be determined at run-time by masking the current IP with
2044 0xf8000000. This assumes the zImage being placed in the first 128MB
2045 from start of memory.
2046
Linus Torvalds1da177e2005-04-16 15:20:36 -07002047endmenu
2048
Russell Kingac9d7ef2008-08-18 17:26:00 +01002049menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050
Ben Dooks89c52ed2009-07-30 23:23:24 +01002051if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052
2053source "drivers/cpufreq/Kconfig"
2054
Yong Shen64f102b2010-10-21 21:18:59 +08002055config CPU_FREQ_IMX
2056 tristate "CPUfreq driver for i.MX CPUs"
2057 depends on ARCH_MXC && CPU_FREQ
2058 help
2059 This enables the CPUfreq driver for i.MX CPUs.
2060
Linus Torvalds1da177e2005-04-16 15:20:36 -07002061config CPU_FREQ_SA1100
2062 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002063
2064config CPU_FREQ_SA1110
2065 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002066
2067config CPU_FREQ_INTEGRATOR
2068 tristate "CPUfreq driver for ARM Integrator CPUs"
2069 depends on ARCH_INTEGRATOR && CPU_FREQ
2070 default y
2071 help
2072 This enables the CPUfreq driver for ARM Integrator CPUs.
2073
2074 For details, take a look at <file:Documentation/cpu-freq>.
2075
2076 If in doubt, say Y.
2077
Russell King9e2697f2007-12-14 13:30:14 +00002078config CPU_FREQ_PXA
2079 bool
2080 depends on CPU_FREQ && ARCH_PXA && PXA25x
2081 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002082 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002083 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2084
Ben Dooks9d56c022009-07-30 23:23:25 +01002085config CPU_FREQ_S3C
2086 bool
2087 help
2088 Internal configuration node for common cpufreq on Samsung SoC
2089
2090config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002091 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002092 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2093 select CPU_FREQ_S3C
2094 help
2095 This enables the CPUfreq driver for the Samsung S3C24XX family
2096 of CPUs.
2097
2098 For details, take a look at <file:Documentation/cpu-freq>.
2099
2100 If in doubt, say N.
2101
2102config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002103 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002104 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2105 help
2106 Compile in support for changing the PLL frequency from the
2107 S3C24XX series CPUfreq driver. The PLL takes time to settle
2108 after a frequency change, so by default it is not enabled.
2109
2110 This also means that the PLL tables for the selected CPU(s) will
2111 be built which may increase the size of the kernel image.
2112
2113config CPU_FREQ_S3C24XX_DEBUG
2114 bool "Debug CPUfreq Samsung driver core"
2115 depends on CPU_FREQ_S3C24XX
2116 help
2117 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2118
2119config CPU_FREQ_S3C24XX_IODEBUG
2120 bool "Debug CPUfreq Samsung driver IO timing"
2121 depends on CPU_FREQ_S3C24XX
2122 help
2123 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2124
Ben Dookse6d197a2009-07-30 23:23:42 +01002125config CPU_FREQ_S3C24XX_DEBUGFS
2126 bool "Export debugfs for CPUFreq"
2127 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2128 help
2129 Export status information via debugfs.
2130
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131endif
2132
Russell Kingac9d7ef2008-08-18 17:26:00 +01002133source "drivers/cpuidle/Kconfig"
2134
2135endmenu
2136
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137menu "Floating point emulation"
2138
2139comment "At least one emulation must be selected"
2140
2141config FPE_NWFPE
2142 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002143 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144 ---help---
2145 Say Y to include the NWFPE floating point emulator in the kernel.
2146 This is necessary to run most binaries. Linux does not currently
2147 support floating point hardware so you need to say Y here even if
2148 your machine has an FPA or floating point co-processor podule.
2149
2150 You may say N here if you are going to load the Acorn FPEmulator
2151 early in the bootup.
2152
2153config FPE_NWFPE_XP
2154 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002155 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156 help
2157 Say Y to include 80-bit support in the kernel floating-point
2158 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2159 Note that gcc does not generate 80-bit operations by default,
2160 so in most cases this option only enlarges the size of the
2161 floating point emulator without any good reason.
2162
2163 You almost surely want to say N here.
2164
2165config FPE_FASTFPE
2166 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002167 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168 ---help---
2169 Say Y here to include the FAST floating point emulator in the kernel.
2170 This is an experimental much faster emulator which now also has full
2171 precision for the mantissa. It does not support any exceptions.
2172 It is very simple, and approximately 3-6 times faster than NWFPE.
2173
2174 It should be sufficient for most programs. It may be not suitable
2175 for scientific calculations, but you have to check this for yourself.
2176 If you do not feel you need a faster FP emulation you should better
2177 choose NWFPE.
2178
2179config VFP
2180 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002181 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182 help
2183 Say Y to include VFP support code in the kernel. This is needed
2184 if your hardware includes a VFP unit.
2185
2186 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2187 release notes and additional status information.
2188
2189 Say N if your target does not have VFP hardware.
2190
Catalin Marinas25ebee02007-09-25 15:22:24 +01002191config VFPv3
2192 bool
2193 depends on VFP
2194 default y if CPU_V7
2195
Catalin Marinasb5872db2008-01-10 19:16:17 +01002196config NEON
2197 bool "Advanced SIMD (NEON) Extension support"
2198 depends on VFPv3 && CPU_V7
2199 help
2200 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2201 Extension.
2202
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203endmenu
2204
2205menu "Userspace binary formats"
2206
2207source "fs/Kconfig.binfmt"
2208
2209config ARTHUR
2210 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002211 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212 help
2213 Say Y here to include the kernel code necessary if you want to run
2214 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2215 experimental; if this sounds frightening, say N and sleep in peace.
2216 You can also say M here to compile this support as a module (which
2217 will be called arthur).
2218
2219endmenu
2220
2221menu "Power management options"
2222
Russell Kingeceab4a2005-11-15 11:31:41 +00002223source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224
Johannes Bergf4cb5702007-12-08 02:14:00 +01002225config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002226 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002227 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2228 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002229 def_bool y
2230
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002231config ARM_CPU_SUSPEND
2232 def_bool PM_SLEEP
2233
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234endmenu
2235
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002236source "net/Kconfig"
2237
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002238source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239
2240source "fs/Kconfig"
2241
Linus Torvalds1da177e2005-04-16 15:20:36 -07002242source "arch/arm/Kconfig.debug"
2243
2244source "security/Kconfig"
2245
2246source "crypto/Kconfig"
2247
2248source "lib/Kconfig"