blob: 98975f58e19e21bef0850eb31418bfc5c32a4d1b [file] [log] [blame]
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 Shilimkar1fb902632011-09-10 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 King234b6ced2011-05-08 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 -07001136config XSCALE_PMU
1137 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001138 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001139 default y
1140
Jamie Iles0f4f0672010-02-02 20:23:15 +01001141config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001142 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001143 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001144 default y
1145 bool
1146
eric miao52108642010-12-13 09:42:34 +01001147config MULTI_IRQ_HANDLER
1148 bool
1149 help
1150 Allow each machine to specify it's own IRQ handler at run time.
1151
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001152if !MMU
1153source "arch/arm/Kconfig-nommu"
1154endif
1155
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001156config ARM_ERRATA_411920
1157 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001158 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001159 help
1160 Invalidation of the Instruction Cache operation can
1161 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1162 It does not affect the MPCore. This option enables the ARM Ltd.
1163 recommended workaround.
1164
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001165config ARM_ERRATA_430973
1166 bool "ARM errata: Stale prediction on replaced interworking branch"
1167 depends on CPU_V7
1168 help
1169 This option enables the workaround for the 430973 Cortex-A8
1170 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1171 interworking branch is replaced with another code sequence at the
1172 same virtual address, whether due to self-modifying code or virtual
1173 to physical address re-mapping, Cortex-A8 does not recover from the
1174 stale interworking branch prediction. This results in Cortex-A8
1175 executing the new code sequence in the incorrect ARM or Thumb state.
1176 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1177 and also flushes the branch target cache at every context switch.
1178 Note that setting specific bits in the ACTLR register may not be
1179 available in non-secure mode.
1180
Catalin Marinas855c5512009-04-30 17:06:15 +01001181config ARM_ERRATA_458693
1182 bool "ARM errata: Processor deadlock when a false hazard is created"
1183 depends on CPU_V7
1184 help
1185 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1186 erratum. For very specific sequences of memory operations, it is
1187 possible for a hazard condition intended for a cache line to instead
1188 be incorrectly associated with a different cache line. This false
1189 hazard might then cause a processor deadlock. The workaround enables
1190 the L1 caching of the NEON accesses and disables the PLD instruction
1191 in the ACTLR register. Note that setting specific bits in the ACTLR
1192 register may not be available in non-secure mode.
1193
Catalin Marinas0516e462009-04-30 17:06:20 +01001194config ARM_ERRATA_460075
1195 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1196 depends on CPU_V7
1197 help
1198 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1199 erratum. Any asynchronous access to the L2 cache may encounter a
1200 situation in which recent store transactions to the L2 cache are lost
1201 and overwritten with stale memory contents from external memory. The
1202 workaround disables the write-allocate mode for the L2 cache via the
1203 ACTLR register. Note that setting specific bits in the ACTLR register
1204 may not be available in non-secure mode.
1205
Will Deacon9f050272010-09-14 09:51:43 +01001206config ARM_ERRATA_742230
1207 bool "ARM errata: DMB operation may be faulty"
1208 depends on CPU_V7 && SMP
1209 help
1210 This option enables the workaround for the 742230 Cortex-A9
1211 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1212 between two write operations may not ensure the correct visibility
1213 ordering of the two writes. This workaround sets a specific bit in
1214 the diagnostic register of the Cortex-A9 which causes the DMB
1215 instruction to behave as a DSB, ensuring the correct behaviour of
1216 the two writes.
1217
Will Deacona672e992010-09-14 09:53:02 +01001218config ARM_ERRATA_742231
1219 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1220 depends on CPU_V7 && SMP
1221 help
1222 This option enables the workaround for the 742231 Cortex-A9
1223 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1224 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1225 accessing some data located in the same cache line, may get corrupted
1226 data due to bad handling of the address hazard when the line gets
1227 replaced from one of the CPUs at the same time as another CPU is
1228 accessing it. This workaround sets specific bits in the diagnostic
1229 register of the Cortex-A9 which reduces the linefill issuing
1230 capabilities of the processor.
1231
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001232config PL310_ERRATA_588369
1233 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001234 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001235 help
1236 The PL310 L2 cache controller implements three types of Clean &
1237 Invalidate maintenance operations: by Physical Address
1238 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1239 They are architecturally defined to behave as the execution of a
1240 clean operation followed immediately by an invalidate operation,
1241 both performing to the same memory location. This functionality
1242 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001243 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001244
1245config ARM_ERRATA_720789
1246 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1247 depends on CPU_V7 && SMP
1248 help
1249 This option enables the workaround for the 720789 Cortex-A9 (prior to
1250 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1251 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1252 As a consequence of this erratum, some TLB entries which should be
1253 invalidated are not, resulting in an incoherency in the system page
1254 tables. The workaround changes the TLB flushing routines to invalidate
1255 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001256
Russell King1f0090a2011-03-16 23:35:25 +00001257config PL310_ERRATA_727915
1258 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1259 depends on CACHE_L2X0
1260 help
1261 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1262 operation (offset 0x7FC). This operation runs in background so that
1263 PL310 can handle normal accesses while it is in progress. Under very
1264 rare circumstances, due to this erratum, write data can be lost when
1265 PL310 treats a cacheable write transaction during a Clean &
1266 Invalidate by Way operation.
1267
Will Deacon475d92f2010-09-28 14:02:02 +01001268config ARM_ERRATA_743622
1269 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1270 depends on CPU_V7
1271 help
1272 This option enables the workaround for the 743622 Cortex-A9
1273 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1274 optimisation in the Cortex-A9 Store Buffer may lead to data
1275 corruption. This workaround sets a specific bit in the diagnostic
1276 register of the Cortex-A9 which disables the Store Buffer
1277 optimisation, preventing the defect from occurring. This has no
1278 visible impact on the overall performance or power consumption of the
1279 processor.
1280
Will Deacon9a27c272011-02-18 16:36:35 +01001281config ARM_ERRATA_751472
1282 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1283 depends on CPU_V7 && SMP
1284 help
1285 This option enables the workaround for the 751472 Cortex-A9 (prior
1286 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1287 completion of a following broadcasted operation if the second
1288 operation is received by a CPU before the ICIALLUIS has completed,
1289 potentially leading to corrupted entries in the cache or TLB.
1290
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001291config ARM_ERRATA_753970
1292 bool "ARM errata: cache sync operation may be faulty"
1293 depends on CACHE_PL310
1294 help
1295 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1296
1297 Under some condition the effect of cache sync operation on
1298 the store buffer still remains when the operation completes.
1299 This means that the store buffer is always asked to drain and
1300 this prevents it from merging any further writes. The workaround
1301 is to replace the normal offset of cache sync operation (0x730)
1302 by another offset targeting an unmapped PL310 register 0x740.
1303 This has the same effect as the cache sync operation: store buffer
1304 drain and waiting for all buffers empty.
1305
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001306config ARM_ERRATA_754322
1307 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1308 depends on CPU_V7
1309 help
1310 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1311 r3p*) erratum. A speculative memory access may cause a page table walk
1312 which starts prior to an ASID switch but completes afterwards. This
1313 can populate the micro-TLB with a stale entry which may be hit with
1314 the new ASID. This workaround places two dsb instructions in the mm
1315 switching code so that no page table walks can cross the ASID switch.
1316
Will Deacon5dab26af2011-03-04 12:38:54 +01001317config ARM_ERRATA_754327
1318 bool "ARM errata: no automatic Store Buffer drain"
1319 depends on CPU_V7 && SMP
1320 help
1321 This option enables the workaround for the 754327 Cortex-A9 (prior to
1322 r2p0) erratum. The Store Buffer does not have any automatic draining
1323 mechanism and therefore a livelock may occur if an external agent
1324 continuously polls a memory location waiting to observe an update.
1325 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1326 written polling loops from denying visibility of updates to memory.
1327
Catalin Marinas145e10e2011-08-15 11:04:41 +01001328config ARM_ERRATA_364296
1329 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1330 depends on CPU_V6 && !SMP
1331 help
1332 This options enables the workaround for the 364296 ARM1136
1333 r0p2 erratum (possible cache data corruption with
1334 hit-under-miss enabled). It sets the undocumented bit 31 in
1335 the auxiliary control register and the FI bit in the control
1336 register, thus disabling hit-under-miss without putting the
1337 processor into full low interrupt latency mode. ARM11MPCore
1338 is not affected.
1339
Will Deaconf630c1b2011-09-15 11:45:15 +01001340config ARM_ERRATA_764369
1341 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1342 depends on CPU_V7 && SMP
1343 help
1344 This option enables the workaround for erratum 764369
1345 affecting Cortex-A9 MPCore with two or more processors (all
1346 current revisions). Under certain timing circumstances, a data
1347 cache line maintenance operation by MVA targeting an Inner
1348 Shareable memory region may fail to proceed up to either the
1349 Point of Coherency or to the Point of Unification of the
1350 system. This workaround adds a DSB instruction before the
1351 relevant cache maintenance functions and sets a specific bit
1352 in the diagnostic control register of the SCU.
1353
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354endmenu
1355
1356source "arch/arm/common/Kconfig"
1357
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358menu "Bus support"
1359
1360config ARM_AMBA
1361 bool
1362
1363config ISA
1364 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 help
1366 Find out whether you have ISA slots on your motherboard. ISA is the
1367 name of a bus system, i.e. the way the CPU talks to the other stuff
1368 inside your box. Other bus systems are PCI, EISA, MicroChannel
1369 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1370 newer boards don't support it. If you have ISA, say Y, otherwise N.
1371
Russell King065909b2006-01-04 15:44:16 +00001372# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373config ISA_DMA
1374 bool
Russell King065909b2006-01-04 15:44:16 +00001375 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376
Russell King065909b2006-01-04 15:44:16 +00001377# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001378config ISA_DMA_API
1379 bool
Al Viro5cae8412005-05-04 05:39:22 +01001380
Linus Torvalds1da177e2005-04-16 15:20:36 -07001381config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001382 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383 help
1384 Find out whether you have a PCI motherboard. PCI is the name of a
1385 bus system, i.e. the way the CPU talks to the other stuff inside
1386 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1387 VESA. If you have PCI, say Y, otherwise N.
1388
Anton Vorontsov52882172010-04-19 13:20:49 +01001389config PCI_DOMAINS
1390 bool
1391 depends on PCI
1392
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001393config PCI_NANOENGINE
1394 bool "BSE nanoEngine PCI support"
1395 depends on SA1100_NANOENGINE
1396 help
1397 Enable PCI on the BSE nanoEngine board.
1398
Matthew Wilcox36e23592007-07-10 10:54:40 -06001399config PCI_SYSCALL
1400 def_bool PCI
1401
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402# Select the host bridge type
1403config PCI_HOST_VIA82C505
1404 bool
1405 depends on PCI && ARCH_SHARK
1406 default y
1407
Mike Rapoporta0113a92007-11-25 08:55:34 +01001408config PCI_HOST_ITE8152
1409 bool
1410 depends on PCI && MACH_ARMCORE
1411 default y
1412 select DMABOUNCE
1413
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414source "drivers/pci/Kconfig"
1415
1416source "drivers/pcmcia/Kconfig"
1417
1418endmenu
1419
1420menu "Kernel Features"
1421
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001422source "kernel/time/Kconfig"
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001425 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001426 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001427 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001428 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001429 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001430 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001431 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001432 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001433 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001434 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435 help
1436 This enables support for systems with more than one CPU. If you have
1437 a system with only one CPU, like most personal computers, say N. If
1438 you have a system with more than one CPU, say Y.
1439
1440 If you say N here, the kernel will run on single and multiprocessor
1441 machines, but will use only one CPU of a multiprocessor machine. If
1442 you say Y here, the kernel will run on many, but not all, single
1443 processor machines. On a single processor machine, the kernel will
1444 run faster if you say N here.
1445
Paul Bolle395cf962011-08-15 02:02:26 +02001446 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001448 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449
1450 If you don't know what to do here, say N.
1451
Russell Kingf00ec482010-09-04 10:47:48 +01001452config SMP_ON_UP
1453 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1454 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001455 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001456 default y
1457 help
1458 SMP kernels contain instructions which fail on non-SMP processors.
1459 Enabling this option allows the kernel to modify itself to make
1460 these instructions safe. Disabling it allows about 1K of space
1461 savings.
1462
1463 If you don't know what to do here, say Y.
1464
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001465config ARM_CPU_TOPOLOGY
1466 bool "Support cpu topology definition"
1467 depends on SMP && CPU_V7
1468 default y
1469 help
1470 Support ARM cpu topology definition. The MPIDR register defines
1471 affinity between processors which is then used to describe the cpu
1472 topology of an ARM System.
1473
1474config SCHED_MC
1475 bool "Multi-core scheduler support"
1476 depends on ARM_CPU_TOPOLOGY
1477 help
1478 Multi-core scheduler support improves the CPU scheduler's decision
1479 making when dealing with multi-core CPU chips at a cost of slightly
1480 increased overhead in some places. If unsure say N here.
1481
1482config SCHED_SMT
1483 bool "SMT scheduler support"
1484 depends on ARM_CPU_TOPOLOGY
1485 help
1486 Improves the CPU scheduler's decision making when dealing with
1487 MultiThreading at a cost of slightly increased overhead in some
1488 places. If unsure say N here.
1489
Russell Kinga8cbcd92009-05-16 11:51:14 +01001490config HAVE_ARM_SCU
1491 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001492 help
1493 This option enables support for the ARM system coherency unit
1494
Russell Kingf32f4ce2009-05-16 12:14:21 +01001495config HAVE_ARM_TWD
1496 bool
1497 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001498 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001499 help
1500 This options enables support for the ARM timer and watchdog unit
1501
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001502choice
1503 prompt "Memory split"
1504 default VMSPLIT_3G
1505 help
1506 Select the desired split between kernel and user memory.
1507
1508 If you are not absolutely sure what you are doing, leave this
1509 option alone!
1510
1511 config VMSPLIT_3G
1512 bool "3G/1G user/kernel split"
1513 config VMSPLIT_2G
1514 bool "2G/2G user/kernel split"
1515 config VMSPLIT_1G
1516 bool "1G/3G user/kernel split"
1517endchoice
1518
1519config PAGE_OFFSET
1520 hex
1521 default 0x40000000 if VMSPLIT_1G
1522 default 0x80000000 if VMSPLIT_2G
1523 default 0xC0000000
1524
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525config NR_CPUS
1526 int "Maximum number of CPUs (2-32)"
1527 range 2 32
1528 depends on SMP
1529 default "4"
1530
Russell Kinga054a812005-11-02 22:24:33 +00001531config HOTPLUG_CPU
1532 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1533 depends on SMP && HOTPLUG && EXPERIMENTAL
1534 help
1535 Say Y here to experiment with turning CPUs off and on. CPUs
1536 can be controlled through /sys/devices/system/cpu.
1537
Russell King37ee16a2005-11-08 19:08:05 +00001538config LOCAL_TIMERS
1539 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001540 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001541 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001542 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001543 help
1544 Enable support for local timers on SMP platforms, rather then the
1545 legacy IPI broadcast method. Local timers allows the system
1546 accounting to be spread across the timer interval, preventing a
1547 "thundering herd" at every timer tick.
1548
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001549source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001550
Russell Kingf8065812006-03-02 22:41:59 +00001551config HZ
1552 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001553 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001554 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001555 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001556 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001557 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001558 default 100
1559
Catalin Marinas16c79652009-07-24 12:33:02 +01001560config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001561 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001562 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001563 select AEABI
1564 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001565 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001566 help
1567 By enabling this option, the kernel will be compiled in
1568 Thumb-2 mode. A compiler/assembler that understand the unified
1569 ARM-Thumb syntax is needed.
1570
1571 If unsure, say N.
1572
Dave Martin6f685c52011-03-03 11:41:12 +01001573config THUMB2_AVOID_R_ARM_THM_JUMP11
1574 bool "Work around buggy Thumb-2 short branch relocations in gas"
1575 depends on THUMB2_KERNEL && MODULES
1576 default y
1577 help
1578 Various binutils versions can resolve Thumb-2 branches to
1579 locally-defined, preemptible global symbols as short-range "b.n"
1580 branch instructions.
1581
1582 This is a problem, because there's no guarantee the final
1583 destination of the symbol, or any candidate locations for a
1584 trampoline, are within range of the branch. For this reason, the
1585 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1586 relocation in modules at all, and it makes little sense to add
1587 support.
1588
1589 The symptom is that the kernel fails with an "unsupported
1590 relocation" error when loading some modules.
1591
1592 Until fixed tools are available, passing
1593 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1594 code which hits this problem, at the cost of a bit of extra runtime
1595 stack usage in some cases.
1596
1597 The problem is described in more detail at:
1598 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1599
1600 Only Thumb-2 kernels are affected.
1601
1602 Unless you are sure your tools don't have this problem, say Y.
1603
Catalin Marinas0becb082009-07-24 12:32:53 +01001604config ARM_ASM_UNIFIED
1605 bool
1606
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001607config AEABI
1608 bool "Use the ARM EABI to compile the kernel"
1609 help
1610 This option allows for the kernel to be compiled using the latest
1611 ARM ABI (aka EABI). This is only useful if you are using a user
1612 space environment that is also compiled with EABI.
1613
1614 Since there are major incompatibilities between the legacy ABI and
1615 EABI, especially with regard to structure member alignment, this
1616 option also changes the kernel syscall calling convention to
1617 disambiguate both ABIs and allow for backward compatibility support
1618 (selected with CONFIG_OABI_COMPAT).
1619
1620 To use this you need GCC version 4.0.0 or later.
1621
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001622config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001623 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001624 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001625 default y
1626 help
1627 This option preserves the old syscall interface along with the
1628 new (ARM EABI) one. It also provides a compatibility layer to
1629 intercept syscalls that have structure arguments which layout
1630 in memory differs between the legacy ABI and the new ARM EABI
1631 (only for non "thumb" binaries). This option adds a tiny
1632 overhead to all syscalls and produces a slightly larger kernel.
1633 If you know you'll be using only pure EABI user space then you
1634 can say N here. If this option is not selected and you attempt
1635 to execute a legacy ABI binary then the result will be
1636 UNPREDICTABLE (in fact it can be predicted that it won't work
1637 at all). If in doubt say Y.
1638
Mel Gormaneb335752009-05-13 17:34:48 +01001639config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001640 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001641
Russell King05944d72006-11-30 20:43:51 +00001642config ARCH_SPARSEMEM_ENABLE
1643 bool
1644
Russell King07a2f732008-10-01 21:39:58 +01001645config ARCH_SPARSEMEM_DEFAULT
1646 def_bool ARCH_SPARSEMEM_ENABLE
1647
Russell King05944d72006-11-30 20:43:51 +00001648config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001649 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001650
Will Deacon7b7bf492011-05-19 13:21:14 +01001651config HAVE_ARCH_PFN_VALID
1652 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1653
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001654config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001655 bool "High Memory Support"
1656 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001657 help
1658 The address space of ARM processors is only 4 Gigabytes large
1659 and it has to accommodate user address space, kernel address
1660 space as well as some memory mapped IO. That means that, if you
1661 have a large amount of physical memory and/or IO, not all of the
1662 memory can be "permanently mapped" by the kernel. The physical
1663 memory that is not permanently mapped is called "high memory".
1664
1665 Depending on the selected kernel/user memory split, minimum
1666 vmalloc space and actual amount of RAM, you may not need this
1667 option which should result in a slightly faster kernel.
1668
1669 If unsure, say n.
1670
Russell King65cec8e2009-08-17 20:02:06 +01001671config HIGHPTE
1672 bool "Allocate 2nd-level pagetables from highmem"
1673 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001674
Jamie Iles1b8873a2010-02-02 20:25:44 +01001675config HW_PERF_EVENTS
1676 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001677 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001678 default y
1679 help
1680 Enable hardware performance counter support for perf events. If
1681 disabled, perf events will use software events only.
1682
Dave Hansen3f22ab22005-06-23 00:07:43 -07001683source "mm/Kconfig"
1684
Magnus Dammc1b2d972010-07-05 10:00:11 +01001685config FORCE_MAX_ZONEORDER
1686 int "Maximum zone order" if ARCH_SHMOBILE
1687 range 11 64 if ARCH_SHMOBILE
1688 default "9" if SA1111
1689 default "11"
1690 help
1691 The kernel memory allocator divides physically contiguous memory
1692 blocks into "zones", where each zone is a power of two number of
1693 pages. This option selects the largest power of two that the kernel
1694 keeps in the memory allocator. If you need to allocate very large
1695 blocks of physically contiguous memory, then you may need to
1696 increase this value.
1697
1698 This config option is actually maximum order plus one. For example,
1699 a value of 11 means that the largest free memory block is 2^10 pages.
1700
Linus Torvalds1da177e2005-04-16 15:20:36 -07001701config LEDS
1702 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001703 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001704 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001705 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1706 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001707 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001708 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001709 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710 help
1711 If you say Y here, the LEDs on your machine will be used
1712 to provide useful information about your current system status.
1713
1714 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1715 be able to select which LEDs are active using the options below. If
1716 you are compiling a kernel for the EBSA-110 or the LART however, the
1717 red LED will simply flash regularly to indicate that the system is
1718 still functional. It is safe to say Y here if you have a CATS
1719 system, but the driver will do nothing.
1720
1721config LEDS_TIMER
1722 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001723 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1724 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001726 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 default y if ARCH_EBSA110
1728 help
1729 If you say Y here, one of the system LEDs (the green one on the
1730 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1731 will flash regularly to indicate that the system is still
1732 operational. This is mainly useful to kernel hackers who are
1733 debugging unstable kernels.
1734
1735 The LART uses the same LED for both Timer LED and CPU usage LED
1736 functions. You may choose to use both, but the Timer LED function
1737 will overrule the CPU usage LED.
1738
1739config LEDS_CPU
1740 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001741 !ARCH_OMAP) \
1742 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1743 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001744 depends on LEDS
1745 help
1746 If you say Y here, the red LED will be used to give a good real
1747 time indication of CPU usage, by lighting whenever the idle task
1748 is not currently executing.
1749
1750 The LART uses the same LED for both Timer LED and CPU usage LED
1751 functions. You may choose to use both, but the Timer LED function
1752 will overrule the CPU usage LED.
1753
1754config ALIGNMENT_TRAP
1755 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001756 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001758 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001759 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001760 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1762 address divisible by 4. On 32-bit ARM processors, these non-aligned
1763 fetch/store instructions will be emulated in software if you say
1764 here, which has a severe performance impact. This is necessary for
1765 correct operation of some network protocols. With an IP-only
1766 configuration it is safe to say N, otherwise say Y.
1767
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001768config UACCESS_WITH_MEMCPY
1769 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1770 depends on MMU && EXPERIMENTAL
1771 default y if CPU_FEROCEON
1772 help
1773 Implement faster copy_to_user and clear_user methods for CPU
1774 cores where a 8-word STM instruction give significantly higher
1775 memory write throughput than a sequence of individual 32bit stores.
1776
1777 A possible side effect is a slight increase in scheduling latency
1778 between threads sharing the same address space if they invoke
1779 such copy operations with large buffers.
1780
1781 However, if the CPU data cache is using a write-allocate mode,
1782 this option is unlikely to provide any performance gain.
1783
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001784config SECCOMP
1785 bool
1786 prompt "Enable seccomp to safely compute untrusted bytecode"
1787 ---help---
1788 This kernel feature is useful for number crunching applications
1789 that may need to compute untrusted bytecode during their
1790 execution. By using pipes or other transports made available to
1791 the process as file descriptors supporting the read/write
1792 syscalls, it's possible to isolate those applications in
1793 their own address space using seccomp. Once seccomp is
1794 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1795 and the task is only allowed to execute a few safe syscalls
1796 defined by each seccomp mode.
1797
Nicolas Pitrec743f382010-05-24 23:55:42 -04001798config CC_STACKPROTECTOR
1799 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001800 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001801 help
1802 This option turns on the -fstack-protector GCC feature. This
1803 feature puts, at the beginning of functions, a canary value on
1804 the stack just before the return address, and validates
1805 the value just before actually returning. Stack based buffer
1806 overflows (that need to overwrite this return address) now also
1807 overwrite the canary, which gets detected and the attack is then
1808 neutralized via a kernel panic.
1809 This feature requires gcc version 4.2 or above.
1810
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001811config DEPRECATED_PARAM_STRUCT
1812 bool "Provide old way to pass kernel parameters"
1813 help
1814 This was deprecated in 2001 and announced to live on for 5 years.
1815 Some old boot loaders still use this way.
1816
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817endmenu
1818
1819menu "Boot options"
1820
Grant Likely9eb8f672011-04-28 14:27:20 -06001821config USE_OF
1822 bool "Flattened Device Tree support"
1823 select OF
1824 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001825 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001826 help
1827 Include support for flattened device tree machine descriptions.
1828
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829# Compressed boot loader in ROM. Yes, we really want to ask about
1830# TEXT and BSS so we preserve their values in the config files.
1831config ZBOOT_ROM_TEXT
1832 hex "Compressed ROM boot loader base address"
1833 default "0"
1834 help
1835 The physical address at which the ROM-able zImage is to be
1836 placed in the target. Platforms which normally make use of
1837 ROM-able zImage formats normally set this to a suitable
1838 value in their defconfig file.
1839
1840 If ZBOOT_ROM is not enabled, this has no effect.
1841
1842config ZBOOT_ROM_BSS
1843 hex "Compressed ROM boot loader BSS address"
1844 default "0"
1845 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001846 The base address of an area of read/write memory in the target
1847 for the ROM-able zImage which must be available while the
1848 decompressor is running. It must be large enough to hold the
1849 entire decompressed kernel plus an additional 128 KiB.
1850 Platforms which normally make use of ROM-able zImage formats
1851 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852
1853 If ZBOOT_ROM is not enabled, this has no effect.
1854
1855config ZBOOT_ROM
1856 bool "Compressed boot loader in ROM/flash"
1857 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1858 help
1859 Say Y here if you intend to execute your compressed kernel image
1860 (zImage) directly from ROM or flash. If unsure, say N.
1861
Simon Horman090ab3f2011-04-26 06:29:53 +01001862choice
1863 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1864 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1865 default ZBOOT_ROM_NONE
1866 help
1867 Include experimental SD/MMC loading code in the ROM-able zImage.
1868 With this enabled it is possible to write the the ROM-able zImage
1869 kernel image to an MMC or SD card and boot the kernel straight
1870 from the reset vector. At reset the processor Mask ROM will load
1871 the first part of the the ROM-able zImage which in turn loads the
1872 rest the kernel image to RAM.
1873
1874config ZBOOT_ROM_NONE
1875 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1876 help
1877 Do not load image from SD or MMC
1878
Simon Hormanf45b1142011-01-11 04:01:08 +01001879config ZBOOT_ROM_MMCIF
1880 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001881 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001882 Load image from MMCIF hardware block.
1883
1884config ZBOOT_ROM_SH_MOBILE_SDHI
1885 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1886 help
1887 Load image from SDHI hardware block
1888
1889endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001890
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001891config ARM_APPENDED_DTB
1892 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1893 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1894 help
1895 With this option, the boot code will look for a device tree binary
1896 (DTB) appended to zImage
1897 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1898
1899 This is meant as a backward compatibility convenience for those
1900 systems with a bootloader that can't be upgraded to accommodate
1901 the documented boot protocol using a device tree.
1902
1903 Beware that there is very little in terms of protection against
1904 this option being confused by leftover garbage in memory that might
1905 look like a DTB header after a reboot if no actual DTB is appended
1906 to zImage. Do not leave this option active in a production kernel
1907 if you don't intend to always append a DTB. Proper passing of the
1908 location into r2 of a bootloader provided DTB is always preferable
1909 to this option.
1910
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001911config ARM_ATAG_DTB_COMPAT
1912 bool "Supplement the appended DTB with traditional ATAG information"
1913 depends on ARM_APPENDED_DTB
1914 help
1915 Some old bootloaders can't be updated to a DTB capable one, yet
1916 they provide ATAGs with memory configuration, the ramdisk address,
1917 the kernel cmdline string, etc. Such information is dynamically
1918 provided by the bootloader and can't always be stored in a static
1919 DTB. To allow a device tree enabled kernel to be used with such
1920 bootloaders, this option allows zImage to extract the information
1921 from the ATAG list and store it at run time into the appended DTB.
1922
Linus Torvalds1da177e2005-04-16 15:20:36 -07001923config CMDLINE
1924 string "Default kernel command string"
1925 default ""
1926 help
1927 On some architectures (EBSA110 and CATS), there is currently no way
1928 for the boot loader to pass arguments to the kernel. For these
1929 architectures, you should supply some command-line options at build
1930 time by entering them here. As a minimum, you should specify the
1931 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1932
Victor Boivie4394c122011-05-04 17:07:55 +01001933choice
1934 prompt "Kernel command line type" if CMDLINE != ""
1935 default CMDLINE_FROM_BOOTLOADER
1936
1937config CMDLINE_FROM_BOOTLOADER
1938 bool "Use bootloader kernel arguments if available"
1939 help
1940 Uses the command-line options passed by the boot loader. If
1941 the boot loader doesn't provide any, the default kernel command
1942 string provided in CMDLINE will be used.
1943
1944config CMDLINE_EXTEND
1945 bool "Extend bootloader kernel arguments"
1946 help
1947 The command-line arguments provided by the boot loader will be
1948 appended to the default kernel command string.
1949
Alexander Holler92d20402010-02-16 19:04:53 +01001950config CMDLINE_FORCE
1951 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001952 help
1953 Always use the default kernel command string, even if the boot
1954 loader passes other arguments to the kernel.
1955 This is useful if you cannot or don't want to change the
1956 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001957endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001958
Linus Torvalds1da177e2005-04-16 15:20:36 -07001959config XIP_KERNEL
1960 bool "Kernel Execute-In-Place from ROM"
1961 depends on !ZBOOT_ROM
1962 help
1963 Execute-In-Place allows the kernel to run from non-volatile storage
1964 directly addressable by the CPU, such as NOR flash. This saves RAM
1965 space since the text section of the kernel is not loaded from flash
1966 to RAM. Read-write sections, such as the data section and stack,
1967 are still copied to RAM. The XIP kernel is not compressed since
1968 it has to run directly from flash, so it will take more space to
1969 store it. The flash address used to link the kernel object files,
1970 and for storing it, is configuration dependent. Therefore, if you
1971 say Y here, you must know the proper physical address where to
1972 store the kernel image depending on your own flash memory usage.
1973
1974 Also note that the make target becomes "make xipImage" rather than
1975 "make zImage" or "make Image". The final kernel binary to put in
1976 ROM memory will be arch/arm/boot/xipImage.
1977
1978 If unsure, say N.
1979
1980config XIP_PHYS_ADDR
1981 hex "XIP Kernel Physical Location"
1982 depends on XIP_KERNEL
1983 default "0x00080000"
1984 help
1985 This is the physical address in your flash memory the kernel will
1986 be linked for and stored to. This address is dependent on your
1987 own flash usage.
1988
Richard Purdiec587e4a2007-02-06 21:29:00 +01001989config KEXEC
1990 bool "Kexec system call (EXPERIMENTAL)"
1991 depends on EXPERIMENTAL
1992 help
1993 kexec is a system call that implements the ability to shutdown your
1994 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001995 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001996 you can start any kernel with it, not just Linux.
1997
1998 It is an ongoing process to be certain the hardware in a machine
1999 is properly shutdown, so do not be surprised if this code does not
2000 initially work for you. It may help to enable device hotplugging
2001 support.
2002
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002003config ATAGS_PROC
2004 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002005 depends on KEXEC
2006 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002007 help
2008 Should the atags used to boot the kernel be exported in an "atags"
2009 file in procfs. Useful with kexec.
2010
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002011config CRASH_DUMP
2012 bool "Build kdump crash kernel (EXPERIMENTAL)"
2013 depends on EXPERIMENTAL
2014 help
2015 Generate crash dump after being started by kexec. This should
2016 be normally only set in special crash dump kernels which are
2017 loaded in the main kernel with kexec-tools into a specially
2018 reserved region and then later executed after a crash by
2019 kdump/kexec. The crash dump kernel must be compiled to a
2020 memory address not used by the main kernel
2021
2022 For more details see Documentation/kdump/kdump.txt
2023
Eric Miaoe69edc792010-07-05 15:56:50 +02002024config AUTO_ZRELADDR
2025 bool "Auto calculation of the decompressed kernel image address"
2026 depends on !ZBOOT_ROM && !ARCH_U300
2027 help
2028 ZRELADDR is the physical address where the decompressed kernel
2029 image will be placed. If AUTO_ZRELADDR is selected, the address
2030 will be determined at run-time by masking the current IP with
2031 0xf8000000. This assumes the zImage being placed in the first 128MB
2032 from start of memory.
2033
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034endmenu
2035
Russell Kingac9d7ef2008-08-18 17:26:00 +01002036menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037
Ben Dooks89c52ed2009-07-30 23:23:24 +01002038if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039
2040source "drivers/cpufreq/Kconfig"
2041
Yong Shen64f102b2010-10-21 21:18:59 +08002042config CPU_FREQ_IMX
2043 tristate "CPUfreq driver for i.MX CPUs"
2044 depends on ARCH_MXC && CPU_FREQ
2045 help
2046 This enables the CPUfreq driver for i.MX CPUs.
2047
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048config CPU_FREQ_SA1100
2049 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050
2051config CPU_FREQ_SA1110
2052 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002053
2054config CPU_FREQ_INTEGRATOR
2055 tristate "CPUfreq driver for ARM Integrator CPUs"
2056 depends on ARCH_INTEGRATOR && CPU_FREQ
2057 default y
2058 help
2059 This enables the CPUfreq driver for ARM Integrator CPUs.
2060
2061 For details, take a look at <file:Documentation/cpu-freq>.
2062
2063 If in doubt, say Y.
2064
Russell King9e2697f2007-12-14 13:30:14 +00002065config CPU_FREQ_PXA
2066 bool
2067 depends on CPU_FREQ && ARCH_PXA && PXA25x
2068 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002069 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002070 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2071
Ben Dooks9d56c022009-07-30 23:23:25 +01002072config CPU_FREQ_S3C
2073 bool
2074 help
2075 Internal configuration node for common cpufreq on Samsung SoC
2076
2077config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002078 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002079 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2080 select CPU_FREQ_S3C
2081 help
2082 This enables the CPUfreq driver for the Samsung S3C24XX family
2083 of CPUs.
2084
2085 For details, take a look at <file:Documentation/cpu-freq>.
2086
2087 If in doubt, say N.
2088
2089config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002090 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002091 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2092 help
2093 Compile in support for changing the PLL frequency from the
2094 S3C24XX series CPUfreq driver. The PLL takes time to settle
2095 after a frequency change, so by default it is not enabled.
2096
2097 This also means that the PLL tables for the selected CPU(s) will
2098 be built which may increase the size of the kernel image.
2099
2100config CPU_FREQ_S3C24XX_DEBUG
2101 bool "Debug CPUfreq Samsung driver core"
2102 depends on CPU_FREQ_S3C24XX
2103 help
2104 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2105
2106config CPU_FREQ_S3C24XX_IODEBUG
2107 bool "Debug CPUfreq Samsung driver IO timing"
2108 depends on CPU_FREQ_S3C24XX
2109 help
2110 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2111
Ben Dookse6d197a2009-07-30 23:23:42 +01002112config CPU_FREQ_S3C24XX_DEBUGFS
2113 bool "Export debugfs for CPUFreq"
2114 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2115 help
2116 Export status information via debugfs.
2117
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118endif
2119
Russell Kingac9d7ef2008-08-18 17:26:00 +01002120source "drivers/cpuidle/Kconfig"
2121
2122endmenu
2123
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124menu "Floating point emulation"
2125
2126comment "At least one emulation must be selected"
2127
2128config FPE_NWFPE
2129 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002130 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 ---help---
2132 Say Y to include the NWFPE floating point emulator in the kernel.
2133 This is necessary to run most binaries. Linux does not currently
2134 support floating point hardware so you need to say Y here even if
2135 your machine has an FPA or floating point co-processor podule.
2136
2137 You may say N here if you are going to load the Acorn FPEmulator
2138 early in the bootup.
2139
2140config FPE_NWFPE_XP
2141 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002142 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143 help
2144 Say Y to include 80-bit support in the kernel floating-point
2145 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2146 Note that gcc does not generate 80-bit operations by default,
2147 so in most cases this option only enlarges the size of the
2148 floating point emulator without any good reason.
2149
2150 You almost surely want to say N here.
2151
2152config FPE_FASTFPE
2153 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002154 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155 ---help---
2156 Say Y here to include the FAST floating point emulator in the kernel.
2157 This is an experimental much faster emulator which now also has full
2158 precision for the mantissa. It does not support any exceptions.
2159 It is very simple, and approximately 3-6 times faster than NWFPE.
2160
2161 It should be sufficient for most programs. It may be not suitable
2162 for scientific calculations, but you have to check this for yourself.
2163 If you do not feel you need a faster FP emulation you should better
2164 choose NWFPE.
2165
2166config VFP
2167 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002168 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169 help
2170 Say Y to include VFP support code in the kernel. This is needed
2171 if your hardware includes a VFP unit.
2172
2173 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2174 release notes and additional status information.
2175
2176 Say N if your target does not have VFP hardware.
2177
Catalin Marinas25ebee02007-09-25 15:22:24 +01002178config VFPv3
2179 bool
2180 depends on VFP
2181 default y if CPU_V7
2182
Catalin Marinasb5872db2008-01-10 19:16:17 +01002183config NEON
2184 bool "Advanced SIMD (NEON) Extension support"
2185 depends on VFPv3 && CPU_V7
2186 help
2187 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2188 Extension.
2189
Linus Torvalds1da177e2005-04-16 15:20:36 -07002190endmenu
2191
2192menu "Userspace binary formats"
2193
2194source "fs/Kconfig.binfmt"
2195
2196config ARTHUR
2197 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002198 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199 help
2200 Say Y here to include the kernel code necessary if you want to run
2201 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2202 experimental; if this sounds frightening, say N and sleep in peace.
2203 You can also say M here to compile this support as a module (which
2204 will be called arthur).
2205
2206endmenu
2207
2208menu "Power management options"
2209
Russell Kingeceab4a2005-11-15 11:31:41 +00002210source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211
Johannes Bergf4cb5702007-12-08 02:14:00 +01002212config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002213 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002214 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2215 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002216 def_bool y
2217
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002218config ARM_CPU_SUSPEND
2219 def_bool PM_SLEEP
2220
Linus Torvalds1da177e2005-04-16 15:20:36 -07002221endmenu
2222
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002223source "net/Kconfig"
2224
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002225source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002226
2227source "fs/Kconfig"
2228
Linus Torvalds1da177e2005-04-16 15:20:36 -07002229source "arch/arm/Kconfig.debug"
2230
2231source "security/Kconfig"
2232
2233source "crypto/Kconfig"
2234
2235source "lib/Kconfig"