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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080019 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080021 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010023 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010024 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080025 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010026 select HAVE_PERF_EVENTS
27 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010028 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000029 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010030 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010031 select HAVE_GENERIC_HARDIRQS
32 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010033 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb90262011-09-10 11:30:28 +053034 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020035 select GENERIC_PCI_IOMAP
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 help
37 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000038 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000040 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 Europe. There is an ARM Linux project with a web page at
42 <http://www.arm.linux.org.uk/>.
43
Russell King74facff2011-06-02 11:16:22 +010044config ARM_HAS_SG_CHAIN
45 bool
46
Russell King1a189b92008-04-13 21:41:55 +010047config HAVE_PWM
48 bool
49
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010050config MIGHT_HAVE_PCI
51 bool
52
Ralf Baechle75e71532007-02-09 17:08:58 +000053config SYS_SUPPORTS_APM_EMULATION
54 bool
55
Russell King112f38a42010-12-15 19:23:07 +000056config HAVE_SCHED_CLOCK
57 bool
58
David Brownell0a938b92007-03-05 00:30:18 -080059config GENERIC_GPIO
60 bool
David Brownell0a938b92007-03-05 00:30:18 -080061
John Stultz5cfc8ee2010-03-24 00:22:36 +000062config ARCH_USES_GETTIMEOFFSET
63 bool
64 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010065
Kevin Hilman0567a0c2007-03-13 20:29:24 +010066config GENERIC_CLOCKEVENTS
67 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010068
Catalin Marinasa8655e82008-02-04 17:30:57 +010069config GENERIC_CLOCKEVENTS_BROADCAST
70 bool
71 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010072 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010073
Rob Herringbf9dd362011-03-04 23:51:59 +010074config KTIME_SCALAR
75 bool
76 default y
77
Linus Walleijbc581772009-09-15 17:30:37 +010078config HAVE_TCM
79 bool
80 select GENERIC_ALLOCATOR
81
Russell Kinge119bff2010-01-10 17:23:29 +000082config HAVE_PROC_CPU
83 bool
84
Al Viro5ea81762007-02-11 15:41:31 +000085config NO_IOPORT
86 bool
Al Viro5ea81762007-02-11 15:41:31 +000087
Linus Torvalds1da177e2005-04-16 15:20:36 -070088config EISA
89 bool
90 ---help---
91 The Extended Industry Standard Architecture (EISA) bus was
92 developed as an open alternative to the IBM MicroChannel bus.
93
94 The EISA bus provided some of the features of the IBM MicroChannel
95 bus while maintaining backward compatibility with cards made for
96 the older ISA bus. The EISA bus saw limited use between 1988 and
97 1995 when it was made obsolete by the PCI bus.
98
99 Say Y here if you are building a kernel for an EISA-based machine.
100
101 Otherwise, say N.
102
103config SBUS
104 bool
105
106config MCA
107 bool
108 help
109 MicroChannel Architecture is found in some IBM PS/2 machines and
110 laptops. It is a bus system similar to PCI or ISA. See
111 <file:Documentation/mca.txt> (and especially the web page given
112 there) before attempting to build an MCA bus kernel.
113
Russell Kingf16fb1e2007-04-28 09:59:37 +0100114config STACKTRACE_SUPPORT
115 bool
116 default y
117
Nicolas Pitref76e9152008-04-24 01:31:46 -0400118config HAVE_LATENCYTOP_SUPPORT
119 bool
120 depends on !SMP
121 default y
122
Russell Kingf16fb1e2007-04-28 09:59:37 +0100123config LOCKDEP_SUPPORT
124 bool
125 default y
126
Russell King7ad1bcb2006-08-27 12:07:02 +0100127config TRACE_IRQFLAGS_SUPPORT
128 bool
129 default y
130
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100131config HARDIRQS_SW_RESEND
132 bool
133 default y
134
135config GENERIC_IRQ_PROBE
136 bool
137 default y
138
Nick Piggin95c354f2008-01-30 13:31:20 +0100139config GENERIC_LOCKBREAK
140 bool
141 default y
142 depends on SMP && PREEMPT
143
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144config RWSEM_GENERIC_SPINLOCK
145 bool
146 default y
147
148config RWSEM_XCHGADD_ALGORITHM
149 bool
150
David Howellsf0d1b0b2006-12-08 02:37:49 -0800151config ARCH_HAS_ILOG2_U32
152 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153
154config ARCH_HAS_ILOG2_U64
155 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800156
Ben Dooks89c52ed2009-07-30 23:23:24 +0100157config ARCH_HAS_CPUFREQ
158 bool
159 help
160 Internal node to signify that the ARCH has CPUFREQ support
161 and that the relevant menu configurations are displayed for
162 it.
163
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100164config ARCH_HAS_CPU_IDLE_WAIT
165 def_bool y
166
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800167config GENERIC_HWEIGHT
168 bool
169 default y
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171config GENERIC_CALIBRATE_DELAY
172 bool
173 default y
174
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100175config ARCH_MAY_HAVE_PC_FDC
176 bool
177
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800178config ZONE_DMA
179 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800180
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800181config NEED_DMA_MAP_STATE
182 def_bool y
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config GENERIC_ISA_DMA
185 bool
186
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187config FIQ
188 bool
189
Al Viro034d2f52005-12-19 16:27:59 -0500190config ARCH_MTD_XIP
191 bool
192
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193config VECTORS_BASE
194 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900195 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100196 default DRAM_BASE if REMAP_VECTORS_TO_RAM
197 default 0x00000000
198 help
199 The base address of exception vectors.
200
Russell Kingdc21af92011-01-04 19:09:43 +0000201config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100202 bool "Patch physical to virtual translations at runtime" if EMBEDDED
203 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100204 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000205 depends on !ARCH_REALVIEW || !SPARSEMEM
206 help
Russell King111e9a52011-05-12 10:02:42 +0100207 Patch phys-to-virt and virt-to-phys translation functions at
208 boot and module load time according to the position of the
209 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000210
Russell King111e9a52011-05-12 10:02:42 +0100211 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100212 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000213
Russell Kingc1beced2011-08-10 10:23:45 +0100214 Only disable this option if you know that you do not require
215 this feature (eg, building a kernel for a single machine) and
216 you need to shrink the kernel to the minimal size.
217
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400219 bool
Russell King111e9a52011-05-12 10:02:42 +0100220 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400221 Select this when mach/memory.h is required to provide special
222 definitions for this platform. The need for mach/memory.h should
223 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400224
225config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100226 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400227 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100228 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400229 help
230 Please provide the physical address corresponding to the
231 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000232
Simon Glass87e040b2011-08-16 23:44:26 +0100233config GENERIC_BUG
234 def_bool y
235 depends on BUG
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237source "init/Kconfig"
238
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700239source "kernel/Kconfig.freezer"
240
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241menu "System Type"
242
Hyok S. Choi3c427972009-07-24 12:35:00 +0100243config MMU
244 bool "MMU-based Paged Memory Management Support"
245 default y
246 help
247 Select if you want MMU-based virtualised addressing space
248 support by paged memory management. If unsure, say 'Y'.
249
Russell Kingccf50e22010-03-15 19:03:06 +0000250#
251# The "ARM system type" choice list is ordered alphabetically by option
252# text. Please add new entries in the option alphabetic order.
253#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254choice
255 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000256 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100258config ARCH_INTEGRATOR
259 bool "ARM Ltd. Integrator family"
260 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100261 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100262 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900263 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100264 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000265 select ICST
Russell King13edd862010-01-15 21:49:23 +0000266 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000267 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000268 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400269 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100270 help
271 Support for ARM's Integrator platform.
272
273config ARCH_REALVIEW
274 bool "ARM Ltd. RealView family"
275 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100276 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900277 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000278 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100279 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100280 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000281 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000282 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000283 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100284 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400285 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100286 help
287 This enables support for ARM Ltd RealView boards.
288
289config ARCH_VERSATILE
290 bool "ARM Ltd. Versatile family"
291 select ARM_AMBA
292 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100293 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900294 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000295 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100296 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100297 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000298 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000299 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000300 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000301 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100302 help
303 This enables support for ARM Ltd Versatile board.
304
Russell Kingceade892010-02-11 21:44:53 +0000305config ARCH_VEXPRESS
306 bool "ARM Ltd. Versatile Express family"
307 select ARCH_WANT_OPTIONAL_GPIOLIB
308 select ARM_AMBA
309 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100310 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900311 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000312 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000313 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100314 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000315 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000316 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000317 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000318 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000319 help
320 This enables support for the ARM Ltd Versatile Express boards.
321
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100322config ARCH_AT91
323 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100324 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700325 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100326 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100328 This enables support for systems based on the Atmel AT91RM9200,
329 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330
Russell Kingccf50e22010-03-15 19:03:06 +0000331config ARCH_BCMRING
332 bool "Broadcom BCMRING"
333 depends on MMU
334 select CPU_V6
335 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100336 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100337 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000338 select GENERIC_CLOCKEVENTS
339 select ARCH_WANT_OPTIONAL_GPIOLIB
340 help
341 Support for Broadcom's BCMRing platform.
342
Rob Herring220e6cf2011-06-07 10:02:55 -0500343config ARCH_HIGHBANK
344 bool "Calxeda Highbank-based"
345 select ARCH_WANT_OPTIONAL_GPIOLIB
346 select ARM_AMBA
347 select ARM_GIC
348 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000349 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500350 select CLKDEV_LOOKUP
351 select CPU_V7
352 select GENERIC_CLOCKEVENTS
353 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000354 select HAVE_SMP
Rob Herring220e6cf2011-06-07 10:02:55 -0500355 select USE_OF
356 help
357 Support for the Calxeda Highbank SoC based boards.
358
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000361 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000362 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400363 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000364 help
365 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300367config ARCH_CNS3XXX
368 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200369 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300370 select GENERIC_CLOCKEVENTS
371 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000372 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100373 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400374 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300375 help
376 Support for Cavium Networks CNS3XXX platform.
377
Russell King788c9702009-04-26 14:21:59 +0100378config ARCH_GEMINI
379 bool "Cortina Systems Gemini"
380 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100381 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000382 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100383 help
384 Support for the Cortina Systems Gemini family SoCs
385
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200386config ARCH_PRIMA2
387 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
388 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200389 select NO_IOPORT
390 select GENERIC_CLOCKEVENTS
391 select CLKDEV_LOOKUP
392 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000393 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200394 select USE_OF
395 select ZONE_DMA
396 help
397 Support for CSR SiRFSoC ARM Cortex A9 Platform
398
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399config ARCH_EBSA110
400 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000401 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100402 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000403 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000404 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400405 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 help
407 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000408 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 Ethernet interface, two PCMCIA sockets, two serial ports and a
410 parallel port.
411
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412config ARCH_EP93XX
413 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000414 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000415 select ARM_AMBA
416 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100417 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700418 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100419 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000420 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100421 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000422 help
423 This enables support for the Cirrus EP93xx series of CPUs.
424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425config ARCH_FOOTBRIDGE
426 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000427 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000429 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200430 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400431 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000432 help
433 Support for systems based on the DC21285 companion chip
434 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
Russell King788c9702009-04-26 14:21:59 +0100436config ARCH_MXC
437 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100438 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100439 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100440 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100441 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800442 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100443 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200444 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100445 help
446 Support for Freescale MXC/iMX-based family of processors
447
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800448config ARCH_MXS
449 bool "Freescale MXS-based"
450 select GENERIC_CLOCKEVENTS
451 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100452 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100453 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800454 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800455 help
456 Support for Freescale MXS-based family of processors
457
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100458config ARCH_NETX
459 bool "Hilscher NetX based"
Russell King234b6ce2011-05-08 14:09:47 +0100460 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000461 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100463 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000464 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100465 This enables support for systems based on the Hilscher NetX Soc
466
467config ARCH_H720X
468 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000471 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100472 help
473 This enables support for systems based on the Hynix HMS720x
474
Russell King3b938be2007-05-12 11:25:44 +0100475config ARCH_IOP13XX
476 bool "IOP13xx-based"
477 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000478 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100479 select PLAT_IOP
480 select PCI
481 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100482 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400483 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100484 help
485 Support for Intel's IOP13XX (XScale) family of processors.
486
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100487config ARCH_IOP32X
488 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100489 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
Russell Kingf7e68bb2005-05-05 14:49:01 +0100492 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100493 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000494 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100495 Support for Intel's 80219 and IOP32X (XScale) family of
496 processors.
497
498config ARCH_IOP33X
499 bool "IOP33x-based"
500 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000501 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100502 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100503 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100504 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100505 help
506 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
Russell King3b938be2007-05-12 11:25:44 +0100508config ARCH_IXP23XX
509 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100510 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000511 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100512 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000513 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400514 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100515 help
Russell King3b938be2007-05-12 11:25:44 +0100516 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517
518config ARCH_IXP2000
519 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100520 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000521 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100522 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000523 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400524 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000525 help
526 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527
Russell King3b938be2007-05-12 11:25:44 +0100528config ARCH_IXP4XX
529 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100530 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100531 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000532 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100533 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100534 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000535 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100536 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100537 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100538 help
Russell King3b938be2007-05-12 11:25:44 +0100539 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100540
Saeed Bisharaedabd382009-08-06 15:12:43 +0300541config ARCH_DOVE
542 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300543 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300545 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300546 select GENERIC_CLOCKEVENTS
547 select PLAT_ORION
548 help
549 Support for the Marvell Dove SoC 88AP510
550
Saeed Bishara651c74c2008-06-22 22:45:06 +0200551config ARCH_KIRKWOOD
552 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000553 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700555 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200556 select GENERIC_CLOCKEVENTS
557 select PLAT_ORION
558 help
559 Support for the following Marvell Kirkwood series SoCs:
560 88F6180, 88F6192 and 88F6281.
561
Kevin Wells40805942010-07-27 08:49:04 -0700562config ARCH_LPC32XX
563 bool "NXP LPC32XX"
Russell King234b6ce2011-05-08 14:09:47 +0100564 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700565 select CPU_ARM926T
566 select ARCH_REQUIRE_GPIOLIB
567 select HAVE_IDE
568 select ARM_AMBA
569 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100570 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700571 select GENERIC_CLOCKEVENTS
572 help
573 Support for the NXP LPC32XX family of processors
574
Russell King788c9702009-04-26 14:21:59 +0100575config ARCH_MV78XX0
576 bool "Marvell MV78xx0"
577 select CPU_FEROCEON
578 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700579 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100580 select GENERIC_CLOCKEVENTS
581 select PLAT_ORION
582 help
583 Support for the following Marvell MV78xx0 series SoCs:
584 MV781x0, MV782x0.
585
586config ARCH_ORION5X
587 bool "Marvell Orion"
588 depends on MMU
589 select CPU_FEROCEON
590 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700591 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100592 select GENERIC_CLOCKEVENTS
593 select PLAT_ORION
594 help
595 Support for the following Marvell Orion 5x series SoCs:
596 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
597 Orion-2 (5281), Orion-1-90 (6183).
598
599config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500600 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100601 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100602 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100603 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100604 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800605 select GPIO_PXA
Russell King28bb7bc2010-12-15 21:46:48 +0000606 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100607 select TICK_ONESHOT
608 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400609 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800610 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100611 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500612 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100613
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100614config ARCH_KS8695
615 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000616 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100617 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000618 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400619 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100620 help
621 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
622 System-on-Chip devices.
623
Russell King788c9702009-04-26 14:21:59 +0100624config ARCH_W90X900
625 bool "Nuvoton W90X900 CPU"
626 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100627 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100628 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100629 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100630 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200631 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100632 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
633 At present, the w90x900 has been renamed nuc900, regarding
634 the ARM series product line, you can login the following
635 link address to know more.
636
637 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
638 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400639
Erik Gillingc5f80062010-01-21 16:53:02 -0800640config ARCH_TEGRA
641 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000642 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100643 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800644 select GENERIC_CLOCKEVENTS
645 select GENERIC_GPIO
646 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000647 select HAVE_SCHED_CLOCK
Dave Martin3b556582011-12-07 15:38:04 +0000648 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000649 select MIGHT_HAVE_CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700650 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800651 help
652 This enables support for NVIDIA Tegra based systems (Tegra APX,
653 Tegra 6xx and Tegra 2 series).
654
Jamie Ilesaf756552011-07-25 17:36:42 +0100655config ARCH_PICOXCELL
656 bool "Picochip picoXcell"
657 select ARCH_REQUIRE_GPIOLIB
658 select ARM_PATCH_PHYS_VIRT
659 select ARM_VIC
660 select CPU_V6K
661 select DW_APB_TIMER
662 select GENERIC_CLOCKEVENTS
663 select GENERIC_GPIO
664 select HAVE_SCHED_CLOCK
665 select HAVE_TCM
666 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000667 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100668 select USE_OF
669 help
670 This enables support for systems based on the Picochip picoXcell
671 family of Femtocell devices. The picoxcell support requires device tree
672 for all boards.
673
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100674config ARCH_PNX4008
675 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000676 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100677 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000678 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100679 help
680 This enables support for Philips PNX4008 mobile platform.
681
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700683 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100684 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500685 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100686 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100687 select CLKDEV_LOOKUP
Russell King234b6ce2011-05-08 14:09:47 +0100688 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700689 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100690 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800691 select GPIO_PXA
Russell King7ce83012010-12-15 21:48:15 +0000692 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000693 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800694 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800695 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800696 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800697 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200698 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200699 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000700 help
eric miao2c8086a2007-09-11 19:13:17 -0700701 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702
Russell King788c9702009-04-26 14:21:59 +0100703config ARCH_MSM
704 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500705 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800706 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700707 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800708 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800709 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800710 Support for Qualcomm MSM/QSD based systems. This runs on the
711 apps processor of the MSM/QSD and depends on a shared memory
712 interface to the modem processor which runs the baseband
713 stack and controls some vital subsystems
714 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800715
Magnus Dammc793c1b2010-02-05 11:14:49 +0000716config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900717 bool "Renesas SH-Mobile / R-Mobile"
718 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900719 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900720 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000721 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900722 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000723 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900724 select NO_IOPORT
725 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000726 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200727 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400728 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000729 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900730 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000731
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732config ARCH_RPC
733 bool "RiscPC"
734 select ARCH_ACORN
735 select FIQ
736 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100737 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100738 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000739 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000740 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100741 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000742 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200743 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400744 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 help
746 On the Acorn Risc-PC, Linux can support the internal IDE disk and
747 CD-ROM interface, serial and parallel port, and the floppy drive.
748
749config ARCH_SA1100
750 bool "SA1100-based"
Russell King234b6ce2011-05-08 14:09:47 +0100751 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000752 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100753 select ISA
Russell King05944d72006-11-30 20:43:51 +0000754 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500755 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100756 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000757 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100758 select GENERIC_CLOCKEVENTS
Jett.Zhouedf3ff52011-11-30 14:32:36 +0800759 select CLKDEV_LOOKUP
Russell King5094b922010-12-15 21:49:06 +0000760 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100761 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700762 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200763 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400764 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000765 help
766 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
768config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900769 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800770 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100771 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700772 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900773 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000774 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900775 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 help
777 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
778 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000779 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
Ben Dooks63b1f512010-04-30 16:32:26 +0900781 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300782 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900783 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
784
Ben Dooksa08ab632008-10-21 14:06:39 +0100785config ARCH_S3C64XX
786 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000787 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900788 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900789 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100790 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900791 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900792 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900793 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000794 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100795 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900796 select ARCH_REQUIRE_GPIOLIB
797 select SAMSUNG_CLKSRC
798 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900799 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900800 select S3C_DEV_NAND
801 select USB_ARCH_HAS_OHCI
802 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900803 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900804 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100805 help
806 Samsung S3C64XX series based systems
807
Kukjin Kim49b7a492010-09-07 15:47:18 +0900808config ARCH_S5P64X0
809 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900810 select CPU_V6
811 select GENERIC_GPIO
812 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900813 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900814 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900815 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900816 select GENERIC_CLOCKEVENTS
817 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900818 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900819 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900820 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900821 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
822 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900823
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200824config ARCH_S5PC100
825 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900826 select GENERIC_GPIO
827 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900828 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900829 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100830 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900831 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900832 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900833 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900834 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900835 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200836 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900837
Kukjin Kim170f4e42010-02-24 16:40:44 +0900838config ARCH_S5PV210
839 bool "Samsung S5PV210/S5PC110"
840 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900841 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900842 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900843 select GENERIC_GPIO
844 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900845 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900846 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900847 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900848 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900849 select GENERIC_CLOCKEVENTS
850 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900851 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900852 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900853 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400854 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900855 help
856 Samsung S5PV210/S5PC110 series based systems
857
Kukjin Kim83014572011-11-06 13:54:56 +0900858config ARCH_EXYNOS
859 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900860 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900861 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900862 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900863 select GENERIC_GPIO
864 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900865 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900866 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900867 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900868 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900869 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900870 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400871 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900872 help
Kukjin Kim83014572011-11-06 13:54:56 +0900873 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875config ARCH_SHARK
876 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000877 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100878 select ISA
879 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100880 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100881 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000882 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400883 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000884 help
885 Support for the StrongARM based Digital DNARD machine, also known
886 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Linus Walleijd98aac72009-04-27 10:21:46 +0100888config ARCH_U300
889 bool "ST-Ericsson U300 Series"
890 depends on MMU
Russell King234b6ce2011-05-08 14:09:47 +0100891 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100892 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000893 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100894 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200896 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100897 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100898 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100899 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900900 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100901 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100902 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100903 help
904 Support for ST-Ericsson U300 series mobile platforms.
905
Russell Kingccf50e22010-03-15 19:03:06 +0000906config ARCH_U8500
907 bool "ST-Ericsson U8500 Series"
908 select CPU_V7
909 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000910 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100911 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100912 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100913 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000914 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000915 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000916 help
917 Support for ST-Ericsson's Ux500 architecture
918
919config ARCH_NOMADIK
920 bool "STMicroelectronics Nomadik"
921 select ARM_AMBA
922 select ARM_VIC
923 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100924 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000925 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000926 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000927 select ARCH_REQUIRE_GPIOLIB
928 help
929 Support for the Nomadik platform by ST-Ericsson
930
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100931config ARCH_DAVINCI
932 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100933 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700934 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100935 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700936 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100937 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700938 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100939 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530940 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100941 help
942 Support for TI's DaVinci platform.
943
Russell King3b938be2007-05-12 11:25:44 +0100944config ARCH_OMAP
945 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700946 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700947 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100948 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700949 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700950 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000951 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800952 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100953 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200954 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100955
viresh kumarcee37e52010-04-01 12:31:05 +0100956config PLAT_SPEAR
957 bool "ST SPEAr"
958 select ARM_AMBA
959 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100960 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100961 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100962 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100963 select HAVE_CLK
964 help
965 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
966
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100967config ARCH_VT8500
968 bool "VIA/WonderMedia 85xx"
969 select CPU_ARM926T
970 select GENERIC_GPIO
971 select ARCH_HAS_CPUFREQ
972 select GENERIC_CLOCKEVENTS
973 select ARCH_REQUIRE_GPIOLIB
974 select HAVE_PWM
975 help
976 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800977
John Linnb85a3ef2011-06-20 11:47:27 -0600978config ARCH_ZYNQ
979 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800980 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800981 select GENERIC_CLOCKEVENTS
982 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600983 select ARM_GIC
984 select ARM_AMBA
985 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000986 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800987 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800988 help
John Linnb85a3ef2011-06-20 11:47:27 -0600989 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990endchoice
991
Russell Kingccf50e22010-03-15 19:03:06 +0000992#
993# This is sorted alphabetically by mach-* pathname. However, plat-*
994# Kconfigs may be included either alphabetically (according to the
995# plat- suffix) or along side the corresponding mach-* source.
996#
Russell King95b8f202010-01-14 11:43:54 +0000997source "arch/arm/mach-at91/Kconfig"
998
999source "arch/arm/mach-bcmring/Kconfig"
1000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001source "arch/arm/mach-clps711x/Kconfig"
1002
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001003source "arch/arm/mach-cns3xxx/Kconfig"
1004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-davinci/Kconfig"
1006
1007source "arch/arm/mach-dove/Kconfig"
1008
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001009source "arch/arm/mach-ep93xx/Kconfig"
1010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011source "arch/arm/mach-footbridge/Kconfig"
1012
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001013source "arch/arm/mach-gemini/Kconfig"
1014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/mach-h720x/Kconfig"
1016
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017source "arch/arm/mach-integrator/Kconfig"
1018
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001019source "arch/arm/mach-iop32x/Kconfig"
1020
1021source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022
Dan Williams285f5fa2006-12-07 02:59:39 +01001023source "arch/arm/mach-iop13xx/Kconfig"
1024
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025source "arch/arm/mach-ixp4xx/Kconfig"
1026
1027source "arch/arm/mach-ixp2000/Kconfig"
1028
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001029source "arch/arm/mach-ixp23xx/Kconfig"
1030
Russell King95b8f202010-01-14 11:43:54 +00001031source "arch/arm/mach-kirkwood/Kconfig"
1032
1033source "arch/arm/mach-ks8695/Kconfig"
1034
Kevin Wells40805942010-07-27 08:49:04 -07001035source "arch/arm/mach-lpc32xx/Kconfig"
1036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-msm/Kconfig"
1038
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001039source "arch/arm/mach-mv78xx0/Kconfig"
1040
Russell King95b8f202010-01-14 11:43:54 +00001041source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001043source "arch/arm/mach-mxs/Kconfig"
1044
Russell King95b8f202010-01-14 11:43:54 +00001045source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001046
Russell King95b8f202010-01-14 11:43:54 +00001047source "arch/arm/mach-nomadik/Kconfig"
1048source "arch/arm/plat-nomadik/Kconfig"
1049
Tony Lindgrend48af152005-07-10 19:58:17 +01001050source "arch/arm/plat-omap/Kconfig"
1051
1052source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053
Tony Lindgren1dbae812005-11-10 14:26:51 +00001054source "arch/arm/mach-omap2/Kconfig"
1055
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001056source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/mach-pxa/Kconfig"
1059source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-mmp/Kconfig"
1062
1063source "arch/arm/mach-realview/Kconfig"
1064
1065source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001066
Ben Dookscf383672009-11-10 00:14:58 +00001067source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001068source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001069source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001070
viresh kumarcee37e52010-04-01 12:31:05 +01001071source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001072
1073if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001075source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001076source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001077source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001078source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001079endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080
Ben Dooksa08ab632008-10-21 14:06:39 +01001081if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001082source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001083endif
1084
Kukjin Kim49b7a492010-09-07 15:47:18 +09001085source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001086
Byungho Min5a7652f2009-06-23 21:39:42 +09001087source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001088
Kukjin Kim170f4e42010-02-24 16:40:44 +09001089source "arch/arm/mach-s5pv210/Kconfig"
1090
Kukjin Kim83014572011-11-06 13:54:56 +09001091source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001092
Russell King882d01f2010-03-02 23:40:15 +00001093source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001094
Erik Gillingc5f80062010-01-21 16:53:02 -08001095source "arch/arm/mach-tegra/Kconfig"
1096
Russell King95b8f202010-01-14 11:43:54 +00001097source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098
Russell King95b8f202010-01-14 11:43:54 +00001099source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100
1101source "arch/arm/mach-versatile/Kconfig"
1102
Russell Kingceade892010-02-11 21:44:53 +00001103source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001104source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001105
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001106source "arch/arm/mach-vt8500/Kconfig"
1107
wanzongshun7ec80dd2008-12-03 03:55:38 +01001108source "arch/arm/mach-w90x900/Kconfig"
1109
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110# Definitions to make life easier
1111config ARCH_ACORN
1112 bool
1113
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001114config PLAT_IOP
1115 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001116 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001117 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001118
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001119config PLAT_ORION
1120 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001121 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001122 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001123 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001124
Eric Miaobd5ce432009-01-20 12:06:01 +08001125config PLAT_PXA
1126 bool
1127
Russell Kingf4b8b312010-01-14 12:48:06 +00001128config PLAT_VERSATILE
1129 bool
1130
Russell Kinge3887712010-01-14 13:30:16 +00001131config ARM_TIMER_SP804
1132 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001133 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001134
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135source arch/arm/mm/Kconfig
1136
Russell King958cab02011-12-11 10:04:00 +00001137config ARM_NR_BANKS
1138 int
1139 default 16 if ARCH_EP93XX
1140 default 8
1141
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001142config IWMMXT
1143 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001144 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1145 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001146 help
1147 Enable support for iWMMXt context switching at run time if
1148 running on a CPU that supports it.
1149
Linus Torvalds1da177e2005-04-16 15:20:36 -07001150config XSCALE_PMU
1151 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001152 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153 default y
1154
Jamie Iles0f4f0672010-02-02 20:23:15 +01001155config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001156 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001157 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001158 default y
1159 bool
1160
eric miao52108642010-12-13 09:42:34 +01001161config MULTI_IRQ_HANDLER
1162 bool
1163 help
1164 Allow each machine to specify it's own IRQ handler at run time.
1165
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001166if !MMU
1167source "arch/arm/Kconfig-nommu"
1168endif
1169
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001170config ARM_ERRATA_411920
1171 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001172 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001173 help
1174 Invalidation of the Instruction Cache operation can
1175 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1176 It does not affect the MPCore. This option enables the ARM Ltd.
1177 recommended workaround.
1178
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001179config ARM_ERRATA_430973
1180 bool "ARM errata: Stale prediction on replaced interworking branch"
1181 depends on CPU_V7
1182 help
1183 This option enables the workaround for the 430973 Cortex-A8
1184 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1185 interworking branch is replaced with another code sequence at the
1186 same virtual address, whether due to self-modifying code or virtual
1187 to physical address re-mapping, Cortex-A8 does not recover from the
1188 stale interworking branch prediction. This results in Cortex-A8
1189 executing the new code sequence in the incorrect ARM or Thumb state.
1190 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1191 and also flushes the branch target cache at every context switch.
1192 Note that setting specific bits in the ACTLR register may not be
1193 available in non-secure mode.
1194
Catalin Marinas855c5512009-04-30 17:06:15 +01001195config ARM_ERRATA_458693
1196 bool "ARM errata: Processor deadlock when a false hazard is created"
1197 depends on CPU_V7
1198 help
1199 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1200 erratum. For very specific sequences of memory operations, it is
1201 possible for a hazard condition intended for a cache line to instead
1202 be incorrectly associated with a different cache line. This false
1203 hazard might then cause a processor deadlock. The workaround enables
1204 the L1 caching of the NEON accesses and disables the PLD instruction
1205 in the ACTLR register. Note that setting specific bits in the ACTLR
1206 register may not be available in non-secure mode.
1207
Catalin Marinas0516e462009-04-30 17:06:20 +01001208config ARM_ERRATA_460075
1209 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1210 depends on CPU_V7
1211 help
1212 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1213 erratum. Any asynchronous access to the L2 cache may encounter a
1214 situation in which recent store transactions to the L2 cache are lost
1215 and overwritten with stale memory contents from external memory. The
1216 workaround disables the write-allocate mode for the L2 cache via the
1217 ACTLR register. Note that setting specific bits in the ACTLR register
1218 may not be available in non-secure mode.
1219
Will Deacon9f050272010-09-14 09:51:43 +01001220config ARM_ERRATA_742230
1221 bool "ARM errata: DMB operation may be faulty"
1222 depends on CPU_V7 && SMP
1223 help
1224 This option enables the workaround for the 742230 Cortex-A9
1225 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1226 between two write operations may not ensure the correct visibility
1227 ordering of the two writes. This workaround sets a specific bit in
1228 the diagnostic register of the Cortex-A9 which causes the DMB
1229 instruction to behave as a DSB, ensuring the correct behaviour of
1230 the two writes.
1231
Will Deacona672e992010-09-14 09:53:02 +01001232config ARM_ERRATA_742231
1233 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1234 depends on CPU_V7 && SMP
1235 help
1236 This option enables the workaround for the 742231 Cortex-A9
1237 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1238 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1239 accessing some data located in the same cache line, may get corrupted
1240 data due to bad handling of the address hazard when the line gets
1241 replaced from one of the CPUs at the same time as another CPU is
1242 accessing it. This workaround sets specific bits in the diagnostic
1243 register of the Cortex-A9 which reduces the linefill issuing
1244 capabilities of the processor.
1245
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001246config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001247 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001248 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001249 help
1250 The PL310 L2 cache controller implements three types of Clean &
1251 Invalidate maintenance operations: by Physical Address
1252 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1253 They are architecturally defined to behave as the execution of a
1254 clean operation followed immediately by an invalidate operation,
1255 both performing to the same memory location. This functionality
1256 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001257 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001258
1259config ARM_ERRATA_720789
1260 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001261 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001262 help
1263 This option enables the workaround for the 720789 Cortex-A9 (prior to
1264 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1265 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1266 As a consequence of this erratum, some TLB entries which should be
1267 invalidated are not, resulting in an incoherency in the system page
1268 tables. The workaround changes the TLB flushing routines to invalidate
1269 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001270
Russell King1f0090a2011-03-16 23:35:25 +00001271config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001272 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001273 depends on CACHE_L2X0
1274 help
1275 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1276 operation (offset 0x7FC). This operation runs in background so that
1277 PL310 can handle normal accesses while it is in progress. Under very
1278 rare circumstances, due to this erratum, write data can be lost when
1279 PL310 treats a cacheable write transaction during a Clean &
1280 Invalidate by Way operation.
1281
Will Deacon475d92f2010-09-28 14:02:02 +01001282config ARM_ERRATA_743622
1283 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1284 depends on CPU_V7
1285 help
1286 This option enables the workaround for the 743622 Cortex-A9
1287 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1288 optimisation in the Cortex-A9 Store Buffer may lead to data
1289 corruption. This workaround sets a specific bit in the diagnostic
1290 register of the Cortex-A9 which disables the Store Buffer
1291 optimisation, preventing the defect from occurring. This has no
1292 visible impact on the overall performance or power consumption of the
1293 processor.
1294
Will Deacon9a27c272011-02-18 16:36:35 +01001295config ARM_ERRATA_751472
1296 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001297 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001298 help
1299 This option enables the workaround for the 751472 Cortex-A9 (prior
1300 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1301 completion of a following broadcasted operation if the second
1302 operation is received by a CPU before the ICIALLUIS has completed,
1303 potentially leading to corrupted entries in the cache or TLB.
1304
Will Deaconfa0ce402011-11-14 17:24:57 +01001305config PL310_ERRATA_753970
1306 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001307 depends on CACHE_PL310
1308 help
1309 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1310
1311 Under some condition the effect of cache sync operation on
1312 the store buffer still remains when the operation completes.
1313 This means that the store buffer is always asked to drain and
1314 this prevents it from merging any further writes. The workaround
1315 is to replace the normal offset of cache sync operation (0x730)
1316 by another offset targeting an unmapped PL310 register 0x740.
1317 This has the same effect as the cache sync operation: store buffer
1318 drain and waiting for all buffers empty.
1319
Will Deaconfcbdc5f2011-02-28 18:15:16 +01001320config ARM_ERRATA_754322
1321 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1322 depends on CPU_V7
1323 help
1324 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1325 r3p*) erratum. A speculative memory access may cause a page table walk
1326 which starts prior to an ASID switch but completes afterwards. This
1327 can populate the micro-TLB with a stale entry which may be hit with
1328 the new ASID. This workaround places two dsb instructions in the mm
1329 switching code so that no page table walks can cross the ASID switch.
1330
Will Deacon5dab26a2011-03-04 12:38:54 +01001331config ARM_ERRATA_754327
1332 bool "ARM errata: no automatic Store Buffer drain"
1333 depends on CPU_V7 && SMP
1334 help
1335 This option enables the workaround for the 754327 Cortex-A9 (prior to
1336 r2p0) erratum. The Store Buffer does not have any automatic draining
1337 mechanism and therefore a livelock may occur if an external agent
1338 continuously polls a memory location waiting to observe an update.
1339 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1340 written polling loops from denying visibility of updates to memory.
1341
Catalin Marinas145e10e2011-08-15 11:04:41 +01001342config ARM_ERRATA_364296
1343 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1344 depends on CPU_V6 && !SMP
1345 help
1346 This options enables the workaround for the 364296 ARM1136
1347 r0p2 erratum (possible cache data corruption with
1348 hit-under-miss enabled). It sets the undocumented bit 31 in
1349 the auxiliary control register and the FI bit in the control
1350 register, thus disabling hit-under-miss without putting the
1351 processor into full low interrupt latency mode. ARM11MPCore
1352 is not affected.
1353
Will Deaconf630c1b2011-09-15 11:45:15 +01001354config ARM_ERRATA_764369
1355 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1356 depends on CPU_V7 && SMP
1357 help
1358 This option enables the workaround for erratum 764369
1359 affecting Cortex-A9 MPCore with two or more processors (all
1360 current revisions). Under certain timing circumstances, a data
1361 cache line maintenance operation by MVA targeting an Inner
1362 Shareable memory region may fail to proceed up to either the
1363 Point of Coherency or to the Point of Unification of the
1364 system. This workaround adds a DSB instruction before the
1365 relevant cache maintenance functions and sets a specific bit
1366 in the diagnostic control register of the SCU.
1367
Will Deacon11ed0ba2011-11-14 17:24:58 +01001368config PL310_ERRATA_769419
1369 bool "PL310 errata: no automatic Store Buffer drain"
1370 depends on CACHE_L2X0
1371 help
1372 On revisions of the PL310 prior to r3p2, the Store Buffer does
1373 not automatically drain. This can cause normal, non-cacheable
1374 writes to be retained when the memory system is idle, leading
1375 to suboptimal I/O performance for drivers using coherent DMA.
1376 This option adds a write barrier to the cpu_idle loop so that,
1377 on systems with an outer cache, the store buffer is drained
1378 explicitly.
1379
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380endmenu
1381
1382source "arch/arm/common/Kconfig"
1383
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384menu "Bus support"
1385
1386config ARM_AMBA
1387 bool
1388
1389config ISA
1390 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391 help
1392 Find out whether you have ISA slots on your motherboard. ISA is the
1393 name of a bus system, i.e. the way the CPU talks to the other stuff
1394 inside your box. Other bus systems are PCI, EISA, MicroChannel
1395 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1396 newer boards don't support it. If you have ISA, say Y, otherwise N.
1397
Russell King065909b2006-01-04 15:44:16 +00001398# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399config ISA_DMA
1400 bool
Russell King065909b2006-01-04 15:44:16 +00001401 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402
Russell King065909b2006-01-04 15:44:16 +00001403# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001404config ISA_DMA_API
1405 bool
Al Viro5cae8412005-05-04 05:39:22 +01001406
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001408 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 help
1410 Find out whether you have a PCI motherboard. PCI is the name of a
1411 bus system, i.e. the way the CPU talks to the other stuff inside
1412 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1413 VESA. If you have PCI, say Y, otherwise N.
1414
Anton Vorontsov52882172010-04-19 13:20:49 +01001415config PCI_DOMAINS
1416 bool
1417 depends on PCI
1418
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001419config PCI_NANOENGINE
1420 bool "BSE nanoEngine PCI support"
1421 depends on SA1100_NANOENGINE
1422 help
1423 Enable PCI on the BSE nanoEngine board.
1424
Matthew Wilcox36e23592007-07-10 10:54:40 -06001425config PCI_SYSCALL
1426 def_bool PCI
1427
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428# Select the host bridge type
1429config PCI_HOST_VIA82C505
1430 bool
1431 depends on PCI && ARCH_SHARK
1432 default y
1433
Mike Rapoporta0113a92007-11-25 08:55:34 +01001434config PCI_HOST_ITE8152
1435 bool
1436 depends on PCI && MACH_ARMCORE
1437 default y
1438 select DMABOUNCE
1439
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440source "drivers/pci/Kconfig"
1441
1442source "drivers/pcmcia/Kconfig"
1443
1444endmenu
1445
1446menu "Kernel Features"
1447
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001448source "kernel/time/Kconfig"
1449
Dave Martin3b556582011-12-07 15:38:04 +00001450config HAVE_SMP
1451 bool
1452 help
1453 This option should be selected by machines which have an SMP-
1454 capable CPU.
1455
1456 The only effect of this option is to make the SMP-related
1457 options available to the user for configuration.
1458
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001460 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001461 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001462 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001463 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001464 depends on MMU
Jens Axboef6dd9fa52008-06-10 20:48:30 +02001465 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001466 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001467 help
1468 This enables support for systems with more than one CPU. If you have
1469 a system with only one CPU, like most personal computers, say N. If
1470 you have a system with more than one CPU, say Y.
1471
1472 If you say N here, the kernel will run on single and multiprocessor
1473 machines, but will use only one CPU of a multiprocessor machine. If
1474 you say Y here, the kernel will run on many, but not all, single
1475 processor machines. On a single processor machine, the kernel will
1476 run faster if you say N here.
1477
Paul Bolle395cf962011-08-15 02:02:26 +02001478 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001480 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481
1482 If you don't know what to do here, say N.
1483
Russell Kingf00ec482010-09-04 10:47:48 +01001484config SMP_ON_UP
1485 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1486 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001487 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001488 default y
1489 help
1490 SMP kernels contain instructions which fail on non-SMP processors.
1491 Enabling this option allows the kernel to modify itself to make
1492 these instructions safe. Disabling it allows about 1K of space
1493 savings.
1494
1495 If you don't know what to do here, say Y.
1496
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001497config ARM_CPU_TOPOLOGY
1498 bool "Support cpu topology definition"
1499 depends on SMP && CPU_V7
1500 default y
1501 help
1502 Support ARM cpu topology definition. The MPIDR register defines
1503 affinity between processors which is then used to describe the cpu
1504 topology of an ARM System.
1505
1506config SCHED_MC
1507 bool "Multi-core scheduler support"
1508 depends on ARM_CPU_TOPOLOGY
1509 help
1510 Multi-core scheduler support improves the CPU scheduler's decision
1511 making when dealing with multi-core CPU chips at a cost of slightly
1512 increased overhead in some places. If unsure say N here.
1513
1514config SCHED_SMT
1515 bool "SMT scheduler support"
1516 depends on ARM_CPU_TOPOLOGY
1517 help
1518 Improves the CPU scheduler's decision making when dealing with
1519 MultiThreading at a cost of slightly increased overhead in some
1520 places. If unsure say N here.
1521
Russell Kinga8cbcd92009-05-16 11:51:14 +01001522config HAVE_ARM_SCU
1523 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001524 help
1525 This option enables support for the ARM system coherency unit
1526
Russell Kingf32f4ce2009-05-16 12:14:21 +01001527config HAVE_ARM_TWD
1528 bool
1529 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001530 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001531 help
1532 This options enables support for the ARM timer and watchdog unit
1533
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001534choice
1535 prompt "Memory split"
1536 default VMSPLIT_3G
1537 help
1538 Select the desired split between kernel and user memory.
1539
1540 If you are not absolutely sure what you are doing, leave this
1541 option alone!
1542
1543 config VMSPLIT_3G
1544 bool "3G/1G user/kernel split"
1545 config VMSPLIT_2G
1546 bool "2G/2G user/kernel split"
1547 config VMSPLIT_1G
1548 bool "1G/3G user/kernel split"
1549endchoice
1550
1551config PAGE_OFFSET
1552 hex
1553 default 0x40000000 if VMSPLIT_1G
1554 default 0x80000000 if VMSPLIT_2G
1555 default 0xC0000000
1556
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557config NR_CPUS
1558 int "Maximum number of CPUs (2-32)"
1559 range 2 32
1560 depends on SMP
1561 default "4"
1562
Russell Kinga054a812005-11-02 22:24:33 +00001563config HOTPLUG_CPU
1564 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1565 depends on SMP && HOTPLUG && EXPERIMENTAL
1566 help
1567 Say Y here to experiment with turning CPUs off and on. CPUs
1568 can be controlled through /sys/devices/system/cpu.
1569
Russell King37ee16a2005-11-08 19:08:05 +00001570config LOCAL_TIMERS
1571 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001572 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001573 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001574 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001575 help
1576 Enable support for local timers on SMP platforms, rather then the
1577 legacy IPI broadcast method. Local timers allows the system
1578 accounting to be spread across the timer interval, preventing a
1579 "thundering herd" at every timer tick.
1580
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001581config ARCH_NR_GPIO
1582 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001583 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Peter De Schrijver (NVIDIA)4f3f2582011-12-21 10:50:42 +01001584 default 350 if ARCH_U8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001585 default 0
1586 help
1587 Maximum number of GPIOs in the system.
1588
1589 If unsure, leave the default value.
1590
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001591source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592
Russell Kingf8065812006-03-02 22:41:59 +00001593config HZ
1594 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001595 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001596 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001597 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001598 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001599 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001600 default 100
1601
Catalin Marinas16c79652009-07-24 12:33:02 +01001602config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001603 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001604 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001605 select AEABI
1606 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001607 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001608 help
1609 By enabling this option, the kernel will be compiled in
1610 Thumb-2 mode. A compiler/assembler that understand the unified
1611 ARM-Thumb syntax is needed.
1612
1613 If unsure, say N.
1614
Dave Martin6f685c52011-03-03 11:41:12 +01001615config THUMB2_AVOID_R_ARM_THM_JUMP11
1616 bool "Work around buggy Thumb-2 short branch relocations in gas"
1617 depends on THUMB2_KERNEL && MODULES
1618 default y
1619 help
1620 Various binutils versions can resolve Thumb-2 branches to
1621 locally-defined, preemptible global symbols as short-range "b.n"
1622 branch instructions.
1623
1624 This is a problem, because there's no guarantee the final
1625 destination of the symbol, or any candidate locations for a
1626 trampoline, are within range of the branch. For this reason, the
1627 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1628 relocation in modules at all, and it makes little sense to add
1629 support.
1630
1631 The symptom is that the kernel fails with an "unsupported
1632 relocation" error when loading some modules.
1633
1634 Until fixed tools are available, passing
1635 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1636 code which hits this problem, at the cost of a bit of extra runtime
1637 stack usage in some cases.
1638
1639 The problem is described in more detail at:
1640 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1641
1642 Only Thumb-2 kernels are affected.
1643
1644 Unless you are sure your tools don't have this problem, say Y.
1645
Catalin Marinas0becb082009-07-24 12:32:53 +01001646config ARM_ASM_UNIFIED
1647 bool
1648
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001649config AEABI
1650 bool "Use the ARM EABI to compile the kernel"
1651 help
1652 This option allows for the kernel to be compiled using the latest
1653 ARM ABI (aka EABI). This is only useful if you are using a user
1654 space environment that is also compiled with EABI.
1655
1656 Since there are major incompatibilities between the legacy ABI and
1657 EABI, especially with regard to structure member alignment, this
1658 option also changes the kernel syscall calling convention to
1659 disambiguate both ABIs and allow for backward compatibility support
1660 (selected with CONFIG_OABI_COMPAT).
1661
1662 To use this you need GCC version 4.0.0 or later.
1663
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001664config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001665 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001666 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001667 default y
1668 help
1669 This option preserves the old syscall interface along with the
1670 new (ARM EABI) one. It also provides a compatibility layer to
1671 intercept syscalls that have structure arguments which layout
1672 in memory differs between the legacy ABI and the new ARM EABI
1673 (only for non "thumb" binaries). This option adds a tiny
1674 overhead to all syscalls and produces a slightly larger kernel.
1675 If you know you'll be using only pure EABI user space then you
1676 can say N here. If this option is not selected and you attempt
1677 to execute a legacy ABI binary then the result will be
1678 UNPREDICTABLE (in fact it can be predicted that it won't work
1679 at all). If in doubt say Y.
1680
Mel Gormaneb335752009-05-13 17:34:48 +01001681config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001682 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001683
Russell King05944d72006-11-30 20:43:51 +00001684config ARCH_SPARSEMEM_ENABLE
1685 bool
1686
Russell King07a2f732008-10-01 21:39:58 +01001687config ARCH_SPARSEMEM_DEFAULT
1688 def_bool ARCH_SPARSEMEM_ENABLE
1689
Russell King05944d72006-11-30 20:43:51 +00001690config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001691 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001692
Will Deacon7b7bf492011-05-19 13:21:14 +01001693config HAVE_ARCH_PFN_VALID
1694 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1695
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001696config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001697 bool "High Memory Support"
1698 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001699 help
1700 The address space of ARM processors is only 4 Gigabytes large
1701 and it has to accommodate user address space, kernel address
1702 space as well as some memory mapped IO. That means that, if you
1703 have a large amount of physical memory and/or IO, not all of the
1704 memory can be "permanently mapped" by the kernel. The physical
1705 memory that is not permanently mapped is called "high memory".
1706
1707 Depending on the selected kernel/user memory split, minimum
1708 vmalloc space and actual amount of RAM, you may not need this
1709 option which should result in a slightly faster kernel.
1710
1711 If unsure, say n.
1712
Russell King65cec8e2009-08-17 20:02:06 +01001713config HIGHPTE
1714 bool "Allocate 2nd-level pagetables from highmem"
1715 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001716
Jamie Iles1b8873a2010-02-02 20:25:44 +01001717config HW_PERF_EVENTS
1718 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001719 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001720 default y
1721 help
1722 Enable hardware performance counter support for perf events. If
1723 disabled, perf events will use software events only.
1724
Dave Hansen3f22ab22005-06-23 00:07:43 -07001725source "mm/Kconfig"
1726
Magnus Dammc1b2d972010-07-05 10:00:11 +01001727config FORCE_MAX_ZONEORDER
1728 int "Maximum zone order" if ARCH_SHMOBILE
1729 range 11 64 if ARCH_SHMOBILE
1730 default "9" if SA1111
1731 default "11"
1732 help
1733 The kernel memory allocator divides physically contiguous memory
1734 blocks into "zones", where each zone is a power of two number of
1735 pages. This option selects the largest power of two that the kernel
1736 keeps in the memory allocator. If you need to allocate very large
1737 blocks of physically contiguous memory, then you may need to
1738 increase this value.
1739
1740 This config option is actually maximum order plus one. For example,
1741 a value of 11 means that the largest free memory block is 2^10 pages.
1742
Linus Torvalds1da177e2005-04-16 15:20:36 -07001743config LEDS
1744 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5b2008-04-22 01:43:27 +01001745 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001746 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1748 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001749 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001750 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001751 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001752 help
1753 If you say Y here, the LEDs on your machine will be used
1754 to provide useful information about your current system status.
1755
1756 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1757 be able to select which LEDs are active using the options below. If
1758 you are compiling a kernel for the EBSA-110 or the LART however, the
1759 red LED will simply flash regularly to indicate that the system is
1760 still functional. It is safe to say Y here if you have a CATS
1761 system, but the driver will do nothing.
1762
1763config LEDS_TIMER
1764 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001765 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1766 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001768 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001769 default y if ARCH_EBSA110
1770 help
1771 If you say Y here, one of the system LEDs (the green one on the
1772 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1773 will flash regularly to indicate that the system is still
1774 operational. This is mainly useful to kernel hackers who are
1775 debugging unstable kernels.
1776
1777 The LART uses the same LED for both Timer LED and CPU usage LED
1778 functions. You may choose to use both, but the Timer LED function
1779 will overrule the CPU usage LED.
1780
1781config LEDS_CPU
1782 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001783 !ARCH_OMAP) \
1784 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1785 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786 depends on LEDS
1787 help
1788 If you say Y here, the red LED will be used to give a good real
1789 time indication of CPU usage, by lighting whenever the idle task
1790 is not currently executing.
1791
1792 The LART uses the same LED for both Timer LED and CPU usage LED
1793 functions. You may choose to use both, but the Timer LED function
1794 will overrule the CPU usage LED.
1795
1796config ALIGNMENT_TRAP
1797 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001798 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001800 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001802 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1804 address divisible by 4. On 32-bit ARM processors, these non-aligned
1805 fetch/store instructions will be emulated in software if you say
1806 here, which has a severe performance impact. This is necessary for
1807 correct operation of some network protocols. With an IP-only
1808 configuration it is safe to say N, otherwise say Y.
1809
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001810config UACCESS_WITH_MEMCPY
1811 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1812 depends on MMU && EXPERIMENTAL
1813 default y if CPU_FEROCEON
1814 help
1815 Implement faster copy_to_user and clear_user methods for CPU
1816 cores where a 8-word STM instruction give significantly higher
1817 memory write throughput than a sequence of individual 32bit stores.
1818
1819 A possible side effect is a slight increase in scheduling latency
1820 between threads sharing the same address space if they invoke
1821 such copy operations with large buffers.
1822
1823 However, if the CPU data cache is using a write-allocate mode,
1824 this option is unlikely to provide any performance gain.
1825
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001826config SECCOMP
1827 bool
1828 prompt "Enable seccomp to safely compute untrusted bytecode"
1829 ---help---
1830 This kernel feature is useful for number crunching applications
1831 that may need to compute untrusted bytecode during their
1832 execution. By using pipes or other transports made available to
1833 the process as file descriptors supporting the read/write
1834 syscalls, it's possible to isolate those applications in
1835 their own address space using seccomp. Once seccomp is
1836 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1837 and the task is only allowed to execute a few safe syscalls
1838 defined by each seccomp mode.
1839
Nicolas Pitrec743f382010-05-24 23:55:42 -04001840config CC_STACKPROTECTOR
1841 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001842 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001843 help
1844 This option turns on the -fstack-protector GCC feature. This
1845 feature puts, at the beginning of functions, a canary value on
1846 the stack just before the return address, and validates
1847 the value just before actually returning. Stack based buffer
1848 overflows (that need to overwrite this return address) now also
1849 overwrite the canary, which gets detected and the attack is then
1850 neutralized via a kernel panic.
1851 This feature requires gcc version 4.2 or above.
1852
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001853config DEPRECATED_PARAM_STRUCT
1854 bool "Provide old way to pass kernel parameters"
1855 help
1856 This was deprecated in 2001 and announced to live on for 5 years.
1857 Some old boot loaders still use this way.
1858
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859endmenu
1860
1861menu "Boot options"
1862
Grant Likely9eb8f672011-04-28 14:27:20 -06001863config USE_OF
1864 bool "Flattened Device Tree support"
1865 select OF
1866 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001867 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001868 help
1869 Include support for flattened device tree machine descriptions.
1870
Linus Torvalds1da177e2005-04-16 15:20:36 -07001871# Compressed boot loader in ROM. Yes, we really want to ask about
1872# TEXT and BSS so we preserve their values in the config files.
1873config ZBOOT_ROM_TEXT
1874 hex "Compressed ROM boot loader base address"
1875 default "0"
1876 help
1877 The physical address at which the ROM-able zImage is to be
1878 placed in the target. Platforms which normally make use of
1879 ROM-able zImage formats normally set this to a suitable
1880 value in their defconfig file.
1881
1882 If ZBOOT_ROM is not enabled, this has no effect.
1883
1884config ZBOOT_ROM_BSS
1885 hex "Compressed ROM boot loader BSS address"
1886 default "0"
1887 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001888 The base address of an area of read/write memory in the target
1889 for the ROM-able zImage which must be available while the
1890 decompressor is running. It must be large enough to hold the
1891 entire decompressed kernel plus an additional 128 KiB.
1892 Platforms which normally make use of ROM-able zImage formats
1893 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001894
1895 If ZBOOT_ROM is not enabled, this has no effect.
1896
1897config ZBOOT_ROM
1898 bool "Compressed boot loader in ROM/flash"
1899 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1900 help
1901 Say Y here if you intend to execute your compressed kernel image
1902 (zImage) directly from ROM or flash. If unsure, say N.
1903
Simon Horman090ab3f2011-04-26 06:29:53 +01001904choice
1905 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1906 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1907 default ZBOOT_ROM_NONE
1908 help
1909 Include experimental SD/MMC loading code in the ROM-able zImage.
1910 With this enabled it is possible to write the the ROM-able zImage
1911 kernel image to an MMC or SD card and boot the kernel straight
1912 from the reset vector. At reset the processor Mask ROM will load
1913 the first part of the the ROM-able zImage which in turn loads the
1914 rest the kernel image to RAM.
1915
1916config ZBOOT_ROM_NONE
1917 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1918 help
1919 Do not load image from SD or MMC
1920
Simon Hormanf45b1142011-01-11 04:01:08 +01001921config ZBOOT_ROM_MMCIF
1922 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001923 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001924 Load image from MMCIF hardware block.
1925
1926config ZBOOT_ROM_SH_MOBILE_SDHI
1927 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1928 help
1929 Load image from SDHI hardware block
1930
1931endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001932
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001933config ARM_APPENDED_DTB
1934 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1935 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1936 help
1937 With this option, the boot code will look for a device tree binary
1938 (DTB) appended to zImage
1939 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1940
1941 This is meant as a backward compatibility convenience for those
1942 systems with a bootloader that can't be upgraded to accommodate
1943 the documented boot protocol using a device tree.
1944
1945 Beware that there is very little in terms of protection against
1946 this option being confused by leftover garbage in memory that might
1947 look like a DTB header after a reboot if no actual DTB is appended
1948 to zImage. Do not leave this option active in a production kernel
1949 if you don't intend to always append a DTB. Proper passing of the
1950 location into r2 of a bootloader provided DTB is always preferable
1951 to this option.
1952
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001953config ARM_ATAG_DTB_COMPAT
1954 bool "Supplement the appended DTB with traditional ATAG information"
1955 depends on ARM_APPENDED_DTB
1956 help
1957 Some old bootloaders can't be updated to a DTB capable one, yet
1958 they provide ATAGs with memory configuration, the ramdisk address,
1959 the kernel cmdline string, etc. Such information is dynamically
1960 provided by the bootloader and can't always be stored in a static
1961 DTB. To allow a device tree enabled kernel to be used with such
1962 bootloaders, this option allows zImage to extract the information
1963 from the ATAG list and store it at run time into the appended DTB.
1964
Linus Torvalds1da177e2005-04-16 15:20:36 -07001965config CMDLINE
1966 string "Default kernel command string"
1967 default ""
1968 help
1969 On some architectures (EBSA110 and CATS), there is currently no way
1970 for the boot loader to pass arguments to the kernel. For these
1971 architectures, you should supply some command-line options at build
1972 time by entering them here. As a minimum, you should specify the
1973 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1974
Victor Boivie4394c122011-05-04 17:07:55 +01001975choice
1976 prompt "Kernel command line type" if CMDLINE != ""
1977 default CMDLINE_FROM_BOOTLOADER
1978
1979config CMDLINE_FROM_BOOTLOADER
1980 bool "Use bootloader kernel arguments if available"
1981 help
1982 Uses the command-line options passed by the boot loader. If
1983 the boot loader doesn't provide any, the default kernel command
1984 string provided in CMDLINE will be used.
1985
1986config CMDLINE_EXTEND
1987 bool "Extend bootloader kernel arguments"
1988 help
1989 The command-line arguments provided by the boot loader will be
1990 appended to the default kernel command string.
1991
Alexander Holler92d20402010-02-16 19:04:53 +01001992config CMDLINE_FORCE
1993 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001994 help
1995 Always use the default kernel command string, even if the boot
1996 loader passes other arguments to the kernel.
1997 This is useful if you cannot or don't want to change the
1998 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001999endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002000
Linus Torvalds1da177e2005-04-16 15:20:36 -07002001config XIP_KERNEL
2002 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002003 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004 help
2005 Execute-In-Place allows the kernel to run from non-volatile storage
2006 directly addressable by the CPU, such as NOR flash. This saves RAM
2007 space since the text section of the kernel is not loaded from flash
2008 to RAM. Read-write sections, such as the data section and stack,
2009 are still copied to RAM. The XIP kernel is not compressed since
2010 it has to run directly from flash, so it will take more space to
2011 store it. The flash address used to link the kernel object files,
2012 and for storing it, is configuration dependent. Therefore, if you
2013 say Y here, you must know the proper physical address where to
2014 store the kernel image depending on your own flash memory usage.
2015
2016 Also note that the make target becomes "make xipImage" rather than
2017 "make zImage" or "make Image". The final kernel binary to put in
2018 ROM memory will be arch/arm/boot/xipImage.
2019
2020 If unsure, say N.
2021
2022config XIP_PHYS_ADDR
2023 hex "XIP Kernel Physical Location"
2024 depends on XIP_KERNEL
2025 default "0x00080000"
2026 help
2027 This is the physical address in your flash memory the kernel will
2028 be linked for and stored to. This address is dependent on your
2029 own flash usage.
2030
Richard Purdiec587e4a2007-02-06 21:29:00 +01002031config KEXEC
2032 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002033 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002034 help
2035 kexec is a system call that implements the ability to shutdown your
2036 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002037 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002038 you can start any kernel with it, not just Linux.
2039
2040 It is an ongoing process to be certain the hardware in a machine
2041 is properly shutdown, so do not be surprised if this code does not
2042 initially work for you. It may help to enable device hotplugging
2043 support.
2044
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002045config ATAGS_PROC
2046 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002047 depends on KEXEC
2048 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002049 help
2050 Should the atags used to boot the kernel be exported in an "atags"
2051 file in procfs. Useful with kexec.
2052
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002053config CRASH_DUMP
2054 bool "Build kdump crash kernel (EXPERIMENTAL)"
2055 depends on EXPERIMENTAL
2056 help
2057 Generate crash dump after being started by kexec. This should
2058 be normally only set in special crash dump kernels which are
2059 loaded in the main kernel with kexec-tools into a specially
2060 reserved region and then later executed after a crash by
2061 kdump/kexec. The crash dump kernel must be compiled to a
2062 memory address not used by the main kernel
2063
2064 For more details see Documentation/kdump/kdump.txt
2065
Eric Miaoe69edc792010-07-05 15:56:50 +02002066config AUTO_ZRELADDR
2067 bool "Auto calculation of the decompressed kernel image address"
2068 depends on !ZBOOT_ROM && !ARCH_U300
2069 help
2070 ZRELADDR is the physical address where the decompressed kernel
2071 image will be placed. If AUTO_ZRELADDR is selected, the address
2072 will be determined at run-time by masking the current IP with
2073 0xf8000000. This assumes the zImage being placed in the first 128MB
2074 from start of memory.
2075
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076endmenu
2077
Russell Kingac9d7ef2008-08-18 17:26:00 +01002078menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079
Ben Dooks89c52ed2009-07-30 23:23:24 +01002080if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081
2082source "drivers/cpufreq/Kconfig"
2083
Yong Shen64f102b2010-10-21 21:18:59 +08002084config CPU_FREQ_IMX
2085 tristate "CPUfreq driver for i.MX CPUs"
2086 depends on ARCH_MXC && CPU_FREQ
2087 help
2088 This enables the CPUfreq driver for i.MX CPUs.
2089
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090config CPU_FREQ_SA1100
2091 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092
2093config CPU_FREQ_SA1110
2094 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095
2096config CPU_FREQ_INTEGRATOR
2097 tristate "CPUfreq driver for ARM Integrator CPUs"
2098 depends on ARCH_INTEGRATOR && CPU_FREQ
2099 default y
2100 help
2101 This enables the CPUfreq driver for ARM Integrator CPUs.
2102
2103 For details, take a look at <file:Documentation/cpu-freq>.
2104
2105 If in doubt, say Y.
2106
Russell King9e2697f2007-12-14 13:30:14 +00002107config CPU_FREQ_PXA
2108 bool
2109 depends on CPU_FREQ && ARCH_PXA && PXA25x
2110 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002111 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002112 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2113
Ben Dooks9d56c022009-07-30 23:23:25 +01002114config CPU_FREQ_S3C
2115 bool
2116 help
2117 Internal configuration node for common cpufreq on Samsung SoC
2118
2119config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002120 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002121 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2122 select CPU_FREQ_S3C
2123 help
2124 This enables the CPUfreq driver for the Samsung S3C24XX family
2125 of CPUs.
2126
2127 For details, take a look at <file:Documentation/cpu-freq>.
2128
2129 If in doubt, say N.
2130
2131config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002132 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002133 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2134 help
2135 Compile in support for changing the PLL frequency from the
2136 S3C24XX series CPUfreq driver. The PLL takes time to settle
2137 after a frequency change, so by default it is not enabled.
2138
2139 This also means that the PLL tables for the selected CPU(s) will
2140 be built which may increase the size of the kernel image.
2141
2142config CPU_FREQ_S3C24XX_DEBUG
2143 bool "Debug CPUfreq Samsung driver core"
2144 depends on CPU_FREQ_S3C24XX
2145 help
2146 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2147
2148config CPU_FREQ_S3C24XX_IODEBUG
2149 bool "Debug CPUfreq Samsung driver IO timing"
2150 depends on CPU_FREQ_S3C24XX
2151 help
2152 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2153
Ben Dookse6d197a2009-07-30 23:23:42 +01002154config CPU_FREQ_S3C24XX_DEBUGFS
2155 bool "Export debugfs for CPUFreq"
2156 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2157 help
2158 Export status information via debugfs.
2159
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160endif
2161
Russell Kingac9d7ef2008-08-18 17:26:00 +01002162source "drivers/cpuidle/Kconfig"
2163
2164endmenu
2165
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166menu "Floating point emulation"
2167
2168comment "At least one emulation must be selected"
2169
2170config FPE_NWFPE
2171 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002172 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 ---help---
2174 Say Y to include the NWFPE floating point emulator in the kernel.
2175 This is necessary to run most binaries. Linux does not currently
2176 support floating point hardware so you need to say Y here even if
2177 your machine has an FPA or floating point co-processor podule.
2178
2179 You may say N here if you are going to load the Acorn FPEmulator
2180 early in the bootup.
2181
2182config FPE_NWFPE_XP
2183 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002184 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185 help
2186 Say Y to include 80-bit support in the kernel floating-point
2187 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2188 Note that gcc does not generate 80-bit operations by default,
2189 so in most cases this option only enlarges the size of the
2190 floating point emulator without any good reason.
2191
2192 You almost surely want to say N here.
2193
2194config FPE_FASTFPE
2195 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002196 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197 ---help---
2198 Say Y here to include the FAST floating point emulator in the kernel.
2199 This is an experimental much faster emulator which now also has full
2200 precision for the mantissa. It does not support any exceptions.
2201 It is very simple, and approximately 3-6 times faster than NWFPE.
2202
2203 It should be sufficient for most programs. It may be not suitable
2204 for scientific calculations, but you have to check this for yourself.
2205 If you do not feel you need a faster FP emulation you should better
2206 choose NWFPE.
2207
2208config VFP
2209 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002210 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 help
2212 Say Y to include VFP support code in the kernel. This is needed
2213 if your hardware includes a VFP unit.
2214
2215 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2216 release notes and additional status information.
2217
2218 Say N if your target does not have VFP hardware.
2219
Catalin Marinas25ebee02007-09-25 15:22:24 +01002220config VFPv3
2221 bool
2222 depends on VFP
2223 default y if CPU_V7
2224
Catalin Marinasb5872db2008-01-10 19:16:17 +01002225config NEON
2226 bool "Advanced SIMD (NEON) Extension support"
2227 depends on VFPv3 && CPU_V7
2228 help
2229 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2230 Extension.
2231
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232endmenu
2233
2234menu "Userspace binary formats"
2235
2236source "fs/Kconfig.binfmt"
2237
2238config ARTHUR
2239 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002240 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 help
2242 Say Y here to include the kernel code necessary if you want to run
2243 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2244 experimental; if this sounds frightening, say N and sleep in peace.
2245 You can also say M here to compile this support as a module (which
2246 will be called arthur).
2247
2248endmenu
2249
2250menu "Power management options"
2251
Russell Kingeceab4a2005-11-15 11:31:41 +00002252source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253
Johannes Bergf4cb5702007-12-08 02:14:00 +01002254config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002255 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002256 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2257 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002258 def_bool y
2259
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002260config ARM_CPU_SUSPEND
2261 def_bool PM_SLEEP
2262
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263endmenu
2264
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002265source "net/Kconfig"
2266
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002267source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002268
2269source "fs/Kconfig"
2270
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271source "arch/arm/Kconfig.debug"
2272
2273source "security/Kconfig"
2274
2275source "crypto/Kconfig"
2276
2277source "lib/Kconfig"