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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040019 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080020 select HAVE_KERNEL_GZIP
21 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010022 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080023 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010024 select HAVE_PERF_EVENTS
25 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010026 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000027 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010028 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010029 select HAVE_GENERIC_HARDIRQS
30 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010031 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053032 select CPU_PM if (SUSPEND || CPU_IDLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 help
34 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000035 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 Europe. There is an ARM Linux project with a web page at
39 <http://www.arm.linux.org.uk/>.
40
Russell King74facff2011-06-02 11:16:22 +010041config ARM_HAS_SG_CHAIN
42 bool
43
Russell King1a189b92008-04-13 21:41:55 +010044config HAVE_PWM
45 bool
46
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010047config MIGHT_HAVE_PCI
48 bool
49
Ralf Baechle75e71532007-02-09 17:08:58 +000050config SYS_SUPPORTS_APM_EMULATION
51 bool
52
Russell King112f38a42010-12-15 19:23:07 +000053config HAVE_SCHED_CLOCK
54 bool
55
David Brownell0a938b92007-03-05 00:30:18 -080056config GENERIC_GPIO
57 bool
David Brownell0a938b92007-03-05 00:30:18 -080058
John Stultz5cfc8ee2010-03-24 00:22:36 +000059config ARCH_USES_GETTIMEOFFSET
60 bool
61 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010062
Kevin Hilman0567a0c2007-03-13 20:29:24 +010063config GENERIC_CLOCKEVENTS
64 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065
Catalin Marinasa8655e82008-02-04 17:30:57 +010066config GENERIC_CLOCKEVENTS_BROADCAST
67 bool
68 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010069 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010070
Rob Herringbf9dd362011-03-04 23:51:59 +010071config KTIME_SCALAR
72 bool
73 default y
74
Linus Walleijbc581772009-09-15 17:30:37 +010075config HAVE_TCM
76 bool
77 select GENERIC_ALLOCATOR
78
Russell Kinge119bff2010-01-10 17:23:29 +000079config HAVE_PROC_CPU
80 bool
81
Al Viro5ea81762007-02-11 15:41:31 +000082config NO_IOPORT
83 bool
Al Viro5ea81762007-02-11 15:41:31 +000084
Linus Torvalds1da177e2005-04-16 15:20:36 -070085config EISA
86 bool
87 ---help---
88 The Extended Industry Standard Architecture (EISA) bus was
89 developed as an open alternative to the IBM MicroChannel bus.
90
91 The EISA bus provided some of the features of the IBM MicroChannel
92 bus while maintaining backward compatibility with cards made for
93 the older ISA bus. The EISA bus saw limited use between 1988 and
94 1995 when it was made obsolete by the PCI bus.
95
96 Say Y here if you are building a kernel for an EISA-based machine.
97
98 Otherwise, say N.
99
100config SBUS
101 bool
102
103config MCA
104 bool
105 help
106 MicroChannel Architecture is found in some IBM PS/2 machines and
107 laptops. It is a bus system similar to PCI or ISA. See
108 <file:Documentation/mca.txt> (and especially the web page given
109 there) before attempting to build an MCA bus kernel.
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100128config HARDIRQS_SW_RESEND
129 bool
130 default y
131
132config GENERIC_IRQ_PROBE
133 bool
134 default y
135
Nick Piggin95c354f2008-01-30 13:31:20 +0100136config GENERIC_LOCKBREAK
137 bool
138 default y
139 depends on SMP && PREEMPT
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config RWSEM_GENERIC_SPINLOCK
142 bool
143 default y
144
145config RWSEM_XCHGADD_ALGORITHM
146 bool
147
David Howellsf0d1b0b2006-12-08 02:37:49 -0800148config ARCH_HAS_ILOG2_U32
149 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150
151config ARCH_HAS_ILOG2_U64
152 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153
Ben Dooks89c52ed2009-07-30 23:23:24 +0100154config ARCH_HAS_CPUFREQ
155 bool
156 help
157 Internal node to signify that the ARCH has CPUFREQ support
158 and that the relevant menu configurations are displayed for
159 it.
160
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100161config ARCH_HAS_CPU_IDLE_WAIT
162 def_bool y
163
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800164config GENERIC_HWEIGHT
165 bool
166 default y
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_CALIBRATE_DELAY
169 bool
170 default y
171
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100172config ARCH_MAY_HAVE_PC_FDC
173 bool
174
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800175config ZONE_DMA
176 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800178config NEED_DMA_MAP_STATE
179 def_bool y
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_ISA_DMA
182 bool
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184config FIQ
185 bool
186
Al Viro034d2f52005-12-19 16:27:59 -0500187config ARCH_MTD_XIP
188 bool
189
Hyok S. Choic760fc12006-03-27 15:18:50 +0100190config VECTORS_BASE
191 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900192 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100193 default DRAM_BASE if REMAP_VECTORS_TO_RAM
194 default 0x00000000
195 help
196 The base address of exception vectors.
197
Russell Kingdc21af92011-01-04 19:09:43 +0000198config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100199 bool "Patch physical to virtual translations at runtime" if EMBEDDED
200 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100201 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000202 depends on !ARCH_REALVIEW || !SPARSEMEM
203 help
Russell King111e9a52011-05-12 10:02:42 +0100204 Patch phys-to-virt and virt-to-phys translation functions at
205 boot and module load time according to the position of the
206 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000207
Russell King111e9a52011-05-12 10:02:42 +0100208 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100209 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000210
Russell Kingc1beced2011-08-10 10:23:45 +0100211 Only disable this option if you know that you do not require
212 this feature (eg, building a kernel for a single machine) and
213 you need to shrink the kernel to the minimal size.
214
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400215config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400216 bool
Russell King111e9a52011-05-12 10:02:42 +0100217 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218 Select this when mach/memory.h is required to provide special
219 definitions for this platform. The need for mach/memory.h should
220 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400221
222config PHYS_OFFSET
223 hex "Physical address of main memory"
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400224 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225 help
226 Please provide the physical address corresponding to the
227 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000228
Simon Glass87e040b2011-08-16 23:44:26 +0100229config GENERIC_BUG
230 def_bool y
231 depends on BUG
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233source "init/Kconfig"
234
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700235source "kernel/Kconfig.freezer"
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237menu "System Type"
238
Hyok S. Choi3c427972009-07-24 12:35:00 +0100239config MMU
240 bool "MMU-based Paged Memory Management Support"
241 default y
242 help
243 Select if you want MMU-based virtualised addressing space
244 support by paged memory management. If unsure, say 'Y'.
245
Russell Kingccf50e22010-03-15 19:03:06 +0000246#
247# The "ARM system type" choice list is ordered alphabetically by option
248# text. Please add new entries in the option alphabetic order.
249#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250choice
251 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000252 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100254config ARCH_INTEGRATOR
255 bool "ARM Ltd. Integrator family"
256 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100257 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100258 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900259 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000260 select ICST
Russell King13edd862010-01-15 21:49:23 +0000261 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000262 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000263 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400264 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100265 help
266 Support for ARM's Integrator platform.
267
268config ARCH_REALVIEW
269 bool "ARM Ltd. RealView family"
270 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100271 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900272 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000273 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100274 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100275 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000276 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000277 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000278 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100279 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400280 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100281 help
282 This enables support for ARM Ltd RealView boards.
283
284config ARCH_VERSATILE
285 bool "ARM Ltd. Versatile family"
286 select ARM_AMBA
287 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100288 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900289 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000290 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100291 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100292 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000293 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000294 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000295 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000296 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100297 help
298 This enables support for ARM Ltd Versatile board.
299
Russell Kingceade892010-02-11 21:44:53 +0000300config ARCH_VEXPRESS
301 bool "ARM Ltd. Versatile Express family"
302 select ARCH_WANT_OPTIONAL_GPIOLIB
303 select ARM_AMBA
304 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100305 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900306 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000307 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000308 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100309 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000310 select ICST
311 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000312 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000313 help
314 This enables support for the ARM Ltd Versatile Express boards.
315
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100316config ARCH_AT91
317 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100318 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700319 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100320 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100322 This enables support for systems based on the Atmel AT91RM9200,
323 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100324
Russell Kingccf50e22010-03-15 19:03:06 +0000325config ARCH_BCMRING
326 bool "Broadcom BCMRING"
327 depends on MMU
328 select CPU_V6
329 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100330 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100331 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000332 select GENERIC_CLOCKEVENTS
333 select ARCH_WANT_OPTIONAL_GPIOLIB
334 help
335 Support for Broadcom's BCMRing platform.
336
Rob Herring220e6cf2011-06-07 10:02:55 -0500337config ARCH_HIGHBANK
338 bool "Calxeda Highbank-based"
339 select ARCH_WANT_OPTIONAL_GPIOLIB
340 select ARM_AMBA
341 select ARM_GIC
342 select ARM_TIMER_SP804
343 select CLKDEV_LOOKUP
344 select CPU_V7
345 select GENERIC_CLOCKEVENTS
346 select HAVE_ARM_SCU
Dave Martince5ea9f2011-11-29 15:56:19 +0000347 select MIGHT_HAVE_CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500348 select USE_OF
349 help
350 Support for the Calxeda Highbank SoC based boards.
351
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100353 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000354 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000355 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400356 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000357 help
358 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300360config ARCH_CNS3XXX
361 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200362 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300363 select GENERIC_CLOCKEVENTS
364 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000365 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100366 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400367 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300368 help
369 Support for Cavium Networks CNS3XXX platform.
370
Russell King788c9702009-04-26 14:21:59 +0100371config ARCH_GEMINI
372 bool "Cortina Systems Gemini"
373 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100374 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000375 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100376 help
377 Support for the Cortina Systems Gemini family SoCs
378
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200379config ARCH_PRIMA2
380 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
381 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200382 select NO_IOPORT
383 select GENERIC_CLOCKEVENTS
384 select CLKDEV_LOOKUP
385 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000386 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200387 select USE_OF
388 select ZONE_DMA
389 help
390 Support for CSR SiRFSoC ARM Cortex A9 Platform
391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392config ARCH_EBSA110
393 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000394 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100395 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000396 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000397 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400398 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 help
400 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000401 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 Ethernet interface, two PCMCIA sockets, two serial ports and a
403 parallel port.
404
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000405config ARCH_EP93XX
406 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000408 select ARM_AMBA
409 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100410 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700411 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100412 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000413 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100414 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000415 help
416 This enables support for the Cirrus EP93xx series of CPUs.
417
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418config ARCH_FOOTBRIDGE
419 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000420 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000422 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200423 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400424 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000425 help
426 Support for systems based on the DC21285 companion chip
427 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428
Russell King788c9702009-04-26 14:21:59 +0100429config ARCH_MXC
430 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100431 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100432 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100433 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100434 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800435 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100436 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200437 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100438 help
439 Support for Freescale MXC/iMX-based family of processors
440
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800441config ARCH_MXS
442 bool "Freescale MXS-based"
443 select GENERIC_CLOCKEVENTS
444 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100445 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100446 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800447 help
448 Support for Freescale MXS-based family of processors
449
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100450config ARCH_NETX
451 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100452 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100454 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100455 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100457 This enables support for systems based on the Hilscher NetX Soc
458
459config ARCH_H720X
460 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000461 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000463 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100464 help
465 This enables support for systems based on the Hynix HMS720x
466
Russell King3b938be2007-05-12 11:25:44 +0100467config ARCH_IOP13XX
468 bool "IOP13xx-based"
469 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000470 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100471 select PLAT_IOP
472 select PCI
473 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100474 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400475 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100476 help
477 Support for Intel's IOP13XX (XScale) family of processors.
478
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100479config ARCH_IOP32X
480 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100481 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000482 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100483 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100484 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100485 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000486 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100487 Support for Intel's 80219 and IOP32X (XScale) family of
488 processors.
489
490config ARCH_IOP33X
491 bool "IOP33x-based"
492 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000493 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100494 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100495 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100496 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100497 help
498 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499
Russell King3b938be2007-05-12 11:25:44 +0100500config ARCH_IXP23XX
501 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100502 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000503 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100504 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000505 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400506 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100507 help
Russell King3b938be2007-05-12 11:25:44 +0100508 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509
510config ARCH_IXP2000
511 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100512 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000513 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100514 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000515 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400516 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000517 help
518 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
Russell King3b938be2007-05-12 11:25:44 +0100520config ARCH_IXP4XX
521 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100522 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100523 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000524 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100525 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100526 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000527 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100528 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100529 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100530 help
Russell King3b938be2007-05-12 11:25:44 +0100531 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100532
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533config ARCH_DOVE
534 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300535 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300537 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300538 select GENERIC_CLOCKEVENTS
539 select PLAT_ORION
540 help
541 Support for the Marvell Dove SoC 88AP510
542
Saeed Bishara651c74c2008-06-22 22:45:06 +0200543config ARCH_KIRKWOOD
544 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000545 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200546 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700547 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200548 select GENERIC_CLOCKEVENTS
549 select PLAT_ORION
550 help
551 Support for the following Marvell Kirkwood series SoCs:
552 88F6180, 88F6192 and 88F6281.
553
Kevin Wells40805942010-07-27 08:49:04 -0700554config ARCH_LPC32XX
555 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100556 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700557 select CPU_ARM926T
558 select ARCH_REQUIRE_GPIOLIB
559 select HAVE_IDE
560 select ARM_AMBA
561 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100562 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700563 select GENERIC_CLOCKEVENTS
564 help
565 Support for the NXP LPC32XX family of processors
566
Russell King788c9702009-04-26 14:21:59 +0100567config ARCH_MV78XX0
568 bool "Marvell MV78xx0"
569 select CPU_FEROCEON
570 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700571 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100572 select GENERIC_CLOCKEVENTS
573 select PLAT_ORION
574 help
575 Support for the following Marvell MV78xx0 series SoCs:
576 MV781x0, MV782x0.
577
578config ARCH_ORION5X
579 bool "Marvell Orion"
580 depends on MMU
581 select CPU_FEROCEON
582 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700583 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100584 select GENERIC_CLOCKEVENTS
585 select PLAT_ORION
586 help
587 Support for the following Marvell Orion 5x series SoCs:
588 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
589 Orion-2 (5281), Orion-1-90 (6183).
590
591config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500592 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100593 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100594 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100595 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100596 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000597 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100598 select TICK_ONESHOT
599 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400600 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800601 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100602 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500603 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100604
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100605config ARCH_KS8695
606 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000607 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100608 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000609 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400610 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100611 help
612 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
613 System-on-Chip devices.
614
Russell King788c9702009-04-26 14:21:59 +0100615config ARCH_W90X900
616 bool "Nuvoton W90X900 CPU"
617 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100618 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100619 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100620 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100621 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200622 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100623 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
624 At present, the w90x900 has been renamed nuc900, regarding
625 the ARM series product line, you can login the following
626 link address to know more.
627
628 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
629 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400630
Erik Gillingc5f80062010-01-21 16:53:02 -0800631config ARCH_TEGRA
632 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000633 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100634 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800635 select GENERIC_CLOCKEVENTS
636 select GENERIC_GPIO
637 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000638 select HAVE_SCHED_CLOCK
Dave Martince5ea9f2011-11-29 15:56:19 +0000639 select MIGHT_HAVE_CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700640 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800641 help
642 This enables support for NVIDIA Tegra based systems (Tegra APX,
643 Tegra 6xx and Tegra 2 series).
644
Jamie Ilesaf756552011-07-25 17:36:42 +0100645config ARCH_PICOXCELL
646 bool "Picochip picoXcell"
647 select ARCH_REQUIRE_GPIOLIB
648 select ARM_PATCH_PHYS_VIRT
649 select ARM_VIC
650 select CPU_V6K
651 select DW_APB_TIMER
652 select GENERIC_CLOCKEVENTS
653 select GENERIC_GPIO
654 select HAVE_SCHED_CLOCK
655 select HAVE_TCM
656 select NO_IOPORT
657 select USE_OF
658 help
659 This enables support for systems based on the Picochip picoXcell
660 family of Femtocell devices. The picoxcell support requires device tree
661 for all boards.
662
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100663config ARCH_PNX4008
664 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000665 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100666 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000667 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100668 help
669 This enables support for Philips PNX4008 mobile platform.
670
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700672 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100673 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500674 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100675 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100676 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100677 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700678 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100679 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000680 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000681 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800682 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800683 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800684 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800685 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200686 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200687 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000688 help
eric miao2c8086a2007-09-11 19:13:17 -0700689 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690
Russell King788c9702009-04-26 14:21:59 +0100691config ARCH_MSM
692 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500693 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800694 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700695 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800696 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800697 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800698 Support for Qualcomm MSM/QSD based systems. This runs on the
699 apps processor of the MSM/QSD and depends on a shared memory
700 interface to the modem processor which runs the baseband
701 stack and controls some vital subsystems
702 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800703
Magnus Dammc793c1b2010-02-05 11:14:49 +0000704config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900705 bool "Renesas SH-Mobile / R-Mobile"
706 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900707 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900708 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900709 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000710 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900711 select NO_IOPORT
712 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000713 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200714 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400715 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000716 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900717 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000718
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719config ARCH_RPC
720 bool "RiscPC"
721 select ARCH_ACORN
722 select FIQ
723 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100724 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100725 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000726 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000727 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100728 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000729 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200730 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400731 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 help
733 On the Acorn Risc-PC, Linux can support the internal IDE disk and
734 CD-ROM interface, serial and parallel port, and the floppy drive.
735
736config ARCH_SA1100
737 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100738 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000739 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100740 select ISA
Russell King05944d72006-11-30 20:43:51 +0000741 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500742 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100743 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000744 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100745 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700746 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000747 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100748 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700749 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200750 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400751 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000752 help
753 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
755config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900756 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800757 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100758 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700759 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900760 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000761 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900762 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 help
764 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
765 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000766 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
Ben Dooks63b1f512010-04-30 16:32:26 +0900768 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300769 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900770 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
771
Ben Dooksa08ab632008-10-21 14:06:39 +0100772config ARCH_S3C64XX
773 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000774 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900775 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900776 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100777 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900778 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900779 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900780 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000781 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100782 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900783 select ARCH_REQUIRE_GPIOLIB
784 select SAMSUNG_CLKSRC
785 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900786 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select S3C_DEV_NAND
788 select USB_ARCH_HAS_OHCI
789 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900790 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900791 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100792 help
793 Samsung S3C64XX series based systems
794
Kukjin Kim49b7a492010-09-07 15:47:18 +0900795config ARCH_S5P64X0
796 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900797 select CPU_V6
798 select GENERIC_GPIO
799 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900800 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900801 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900802 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900803 select GENERIC_CLOCKEVENTS
804 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900805 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900806 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900807 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900808 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
809 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900810
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200811config ARCH_S5PC100
812 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900813 select GENERIC_GPIO
814 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900815 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900816 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100817 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900818 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900819 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900820 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900821 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900822 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200823 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900824
Kukjin Kim170f4e42010-02-24 16:40:44 +0900825config ARCH_S5PV210
826 bool "Samsung S5PV210/S5PC110"
827 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900828 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900829 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900830 select GENERIC_GPIO
831 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900832 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900833 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900834 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900835 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900836 select GENERIC_CLOCKEVENTS
837 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900838 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900839 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900840 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400841 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900842 help
843 Samsung S5PV210/S5PC110 series based systems
844
Kukjin Kim83014572011-11-06 13:54:56 +0900845config ARCH_EXYNOS
846 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900847 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900848 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900849 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900850 select GENERIC_GPIO
851 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900852 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900853 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900854 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900855 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900856 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900857 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400858 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900859 help
Kukjin Kim83014572011-11-06 13:54:56 +0900860 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900861
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862config ARCH_SHARK
863 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000864 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100865 select ISA
866 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100867 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100868 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000869 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400870 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000871 help
872 Support for the StrongARM based Digital DNARD machine, also known
873 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874
Hans J. Koch83ef3332010-09-17 18:13:56 +0200875config ARCH_TCC_926
876 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100877 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200878 select CPU_ARM926T
879 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100880 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200881 select GENERIC_CLOCKEVENTS
882 help
883 Support for Telechips TCC ARM926-based systems.
884
Linus Walleijd98aac72009-04-27 10:21:46 +0100885config ARCH_U300
886 bool "ST-Ericsson U300 Series"
887 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100888 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100889 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000890 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100891 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100892 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200893 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100894 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100896 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900897 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100898 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100899 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400900 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100901 help
902 Support for ST-Ericsson U300 series mobile platforms.
903
Russell Kingccf50e22010-03-15 19:03:06 +0000904config ARCH_U8500
905 bool "ST-Ericsson U8500 Series"
906 select CPU_V7
907 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000908 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100909 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100910 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100911 select ARCH_HAS_CPUFREQ
Dave Martince5ea9f2011-11-29 15:56:19 +0000912 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000913 help
914 Support for ST-Ericsson's Ux500 architecture
915
916config ARCH_NOMADIK
917 bool "STMicroelectronics Nomadik"
918 select ARM_AMBA
919 select ARM_VIC
920 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100921 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000922 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000923 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000924 select ARCH_REQUIRE_GPIOLIB
925 help
926 Support for the Nomadik platform by ST-Ericsson
927
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100928config ARCH_DAVINCI
929 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100930 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700931 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100932 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700933 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100934 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700935 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100936 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530937 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100938 help
939 Support for TI's DaVinci platform.
940
Russell King3b938be2007-05-12 11:25:44 +0100941config ARCH_OMAP
942 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700943 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700944 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100945 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700946 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700947 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000948 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800949 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100950 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200951 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100952
viresh kumarcee37e52010-04-01 12:31:05 +0100953config PLAT_SPEAR
954 bool "ST SPEAr"
955 select ARM_AMBA
956 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100957 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100958 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100959 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100960 select HAVE_CLK
961 help
962 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
963
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100964config ARCH_VT8500
965 bool "VIA/WonderMedia 85xx"
966 select CPU_ARM926T
967 select GENERIC_GPIO
968 select ARCH_HAS_CPUFREQ
969 select GENERIC_CLOCKEVENTS
970 select ARCH_REQUIRE_GPIOLIB
971 select HAVE_PWM
972 help
973 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800974
John Linnb85a3ef2011-06-20 11:47:27 -0600975config ARCH_ZYNQ
976 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800977 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800978 select GENERIC_CLOCKEVENTS
979 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600980 select ARM_GIC
981 select ARM_AMBA
982 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000983 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800984 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800985 help
John Linnb85a3ef2011-06-20 11:47:27 -0600986 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987endchoice
988
Russell Kingccf50e22010-03-15 19:03:06 +0000989#
990# This is sorted alphabetically by mach-* pathname. However, plat-*
991# Kconfigs may be included either alphabetically (according to the
992# plat- suffix) or along side the corresponding mach-* source.
993#
Russell King95b8f202010-01-14 11:43:54 +0000994source "arch/arm/mach-at91/Kconfig"
995
996source "arch/arm/mach-bcmring/Kconfig"
997
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998source "arch/arm/mach-clps711x/Kconfig"
999
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001000source "arch/arm/mach-cns3xxx/Kconfig"
1001
Russell King95b8f202010-01-14 11:43:54 +00001002source "arch/arm/mach-davinci/Kconfig"
1003
1004source "arch/arm/mach-dove/Kconfig"
1005
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001006source "arch/arm/mach-ep93xx/Kconfig"
1007
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008source "arch/arm/mach-footbridge/Kconfig"
1009
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001010source "arch/arm/mach-gemini/Kconfig"
1011
Russell King95b8f202010-01-14 11:43:54 +00001012source "arch/arm/mach-h720x/Kconfig"
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014source "arch/arm/mach-integrator/Kconfig"
1015
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001016source "arch/arm/mach-iop32x/Kconfig"
1017
1018source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019
Dan Williams285f5fa2006-12-07 02:59:39 +01001020source "arch/arm/mach-iop13xx/Kconfig"
1021
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022source "arch/arm/mach-ixp4xx/Kconfig"
1023
1024source "arch/arm/mach-ixp2000/Kconfig"
1025
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001026source "arch/arm/mach-ixp23xx/Kconfig"
1027
Russell King95b8f202010-01-14 11:43:54 +00001028source "arch/arm/mach-kirkwood/Kconfig"
1029
1030source "arch/arm/mach-ks8695/Kconfig"
1031
Kevin Wells40805942010-07-27 08:49:04 -07001032source "arch/arm/mach-lpc32xx/Kconfig"
1033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-msm/Kconfig"
1035
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001036source "arch/arm/mach-mv78xx0/Kconfig"
1037
Russell King95b8f202010-01-14 11:43:54 +00001038source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001040source "arch/arm/mach-mxs/Kconfig"
1041
Russell King95b8f202010-01-14 11:43:54 +00001042source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001043
Russell King95b8f202010-01-14 11:43:54 +00001044source "arch/arm/mach-nomadik/Kconfig"
1045source "arch/arm/plat-nomadik/Kconfig"
1046
Tony Lindgrend48af152005-07-10 19:58:17 +01001047source "arch/arm/plat-omap/Kconfig"
1048
1049source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050
Tony Lindgren1dbae812005-11-10 14:26:51 +00001051source "arch/arm/mach-omap2/Kconfig"
1052
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001053source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001054
Russell King95b8f202010-01-14 11:43:54 +00001055source "arch/arm/mach-pxa/Kconfig"
1056source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/mach-mmp/Kconfig"
1059
1060source "arch/arm/mach-realview/Kconfig"
1061
1062source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001063
Ben Dookscf383672009-11-10 00:14:58 +00001064source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001065source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001066source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001067
viresh kumarcee37e52010-04-01 12:31:05 +01001068source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001069
Hans J. Koch83ef3332010-09-17 18:13:56 +02001070source "arch/arm/plat-tcc/Kconfig"
1071
Ben Dooksa21765a2007-02-11 18:31:01 +01001072if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001074source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001075source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001076source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001077source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001078endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Ben Dooksa08ab632008-10-21 14:06:39 +01001080if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001081source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001082endif
1083
Kukjin Kim49b7a492010-09-07 15:47:18 +09001084source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001085
Byungho Min5a7652f2009-06-23 21:39:42 +09001086source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001087
Kukjin Kim170f4e42010-02-24 16:40:44 +09001088source "arch/arm/mach-s5pv210/Kconfig"
1089
Kukjin Kim83014572011-11-06 13:54:56 +09001090source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001091
Russell King882d01f2010-03-02 23:40:15 +00001092source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093
Erik Gillingc5f80062010-01-21 16:53:02 -08001094source "arch/arm/mach-tegra/Kconfig"
1095
Russell King95b8f202010-01-14 11:43:54 +00001096source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
Russell King95b8f202010-01-14 11:43:54 +00001098source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099
1100source "arch/arm/mach-versatile/Kconfig"
1101
Russell Kingceade892010-02-11 21:44:53 +00001102source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001103source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001104
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001105source "arch/arm/mach-vt8500/Kconfig"
1106
wanzongshun7ec80dd2008-12-03 03:55:38 +01001107source "arch/arm/mach-w90x900/Kconfig"
1108
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109# Definitions to make life easier
1110config ARCH_ACORN
1111 bool
1112
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001113config PLAT_IOP
1114 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001115 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001116 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001117
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001118config PLAT_ORION
1119 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001120 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001121 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001122 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001123
Eric Miaobd5ce432009-01-20 12:06:01 +08001124config PLAT_PXA
1125 bool
1126
Russell Kingf4b8b312010-01-14 12:48:06 +00001127config PLAT_VERSATILE
1128 bool
1129
Russell Kinge3887712010-01-14 13:30:16 +00001130config ARM_TIMER_SP804
1131 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001132 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001133
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134source arch/arm/mm/Kconfig
1135
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001136config IWMMXT
1137 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001138 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1139 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001140 help
1141 Enable support for iWMMXt context switching at run time if
1142 running on a CPU that supports it.
1143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1145config XSCALE_PMU
1146 bool
1147 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1148 default y
1149
Jamie Iles0f4f0672010-02-02 20:23:15 +01001150config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001151 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001152 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001153 default y
1154 bool
1155
eric miao52108642010-12-13 09:42:34 +01001156config MULTI_IRQ_HANDLER
1157 bool
1158 help
1159 Allow each machine to specify it's own IRQ handler at run time.
1160
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001161if !MMU
1162source "arch/arm/Kconfig-nommu"
1163endif
1164
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001165config ARM_ERRATA_411920
1166 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001167 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001168 help
1169 Invalidation of the Instruction Cache operation can
1170 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1171 It does not affect the MPCore. This option enables the ARM Ltd.
1172 recommended workaround.
1173
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001174config ARM_ERRATA_430973
1175 bool "ARM errata: Stale prediction on replaced interworking branch"
1176 depends on CPU_V7
1177 help
1178 This option enables the workaround for the 430973 Cortex-A8
1179 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1180 interworking branch is replaced with another code sequence at the
1181 same virtual address, whether due to self-modifying code or virtual
1182 to physical address re-mapping, Cortex-A8 does not recover from the
1183 stale interworking branch prediction. This results in Cortex-A8
1184 executing the new code sequence in the incorrect ARM or Thumb state.
1185 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1186 and also flushes the branch target cache at every context switch.
1187 Note that setting specific bits in the ACTLR register may not be
1188 available in non-secure mode.
1189
Catalin Marinas855c5512009-04-30 17:06:15 +01001190config ARM_ERRATA_458693
1191 bool "ARM errata: Processor deadlock when a false hazard is created"
1192 depends on CPU_V7
1193 help
1194 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1195 erratum. For very specific sequences of memory operations, it is
1196 possible for a hazard condition intended for a cache line to instead
1197 be incorrectly associated with a different cache line. This false
1198 hazard might then cause a processor deadlock. The workaround enables
1199 the L1 caching of the NEON accesses and disables the PLD instruction
1200 in the ACTLR register. Note that setting specific bits in the ACTLR
1201 register may not be available in non-secure mode.
1202
Catalin Marinas0516e462009-04-30 17:06:20 +01001203config ARM_ERRATA_460075
1204 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1205 depends on CPU_V7
1206 help
1207 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1208 erratum. Any asynchronous access to the L2 cache may encounter a
1209 situation in which recent store transactions to the L2 cache are lost
1210 and overwritten with stale memory contents from external memory. The
1211 workaround disables the write-allocate mode for the L2 cache via the
1212 ACTLR register. Note that setting specific bits in the ACTLR register
1213 may not be available in non-secure mode.
1214
Will Deacon9f050272010-09-14 09:51:43 +01001215config ARM_ERRATA_742230
1216 bool "ARM errata: DMB operation may be faulty"
1217 depends on CPU_V7 && SMP
1218 help
1219 This option enables the workaround for the 742230 Cortex-A9
1220 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1221 between two write operations may not ensure the correct visibility
1222 ordering of the two writes. This workaround sets a specific bit in
1223 the diagnostic register of the Cortex-A9 which causes the DMB
1224 instruction to behave as a DSB, ensuring the correct behaviour of
1225 the two writes.
1226
Will Deacona672e992010-09-14 09:53:02 +01001227config ARM_ERRATA_742231
1228 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1229 depends on CPU_V7 && SMP
1230 help
1231 This option enables the workaround for the 742231 Cortex-A9
1232 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1233 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1234 accessing some data located in the same cache line, may get corrupted
1235 data due to bad handling of the address hazard when the line gets
1236 replaced from one of the CPUs at the same time as another CPU is
1237 accessing it. This workaround sets specific bits in the diagnostic
1238 register of the Cortex-A9 which reduces the linefill issuing
1239 capabilities of the processor.
1240
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001241config PL310_ERRATA_588369
1242 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001243 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001244 help
1245 The PL310 L2 cache controller implements three types of Clean &
1246 Invalidate maintenance operations: by Physical Address
1247 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1248 They are architecturally defined to behave as the execution of a
1249 clean operation followed immediately by an invalidate operation,
1250 both performing to the same memory location. This functionality
1251 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001252 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001253
1254config ARM_ERRATA_720789
1255 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1256 depends on CPU_V7 && SMP
1257 help
1258 This option enables the workaround for the 720789 Cortex-A9 (prior to
1259 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1260 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1261 As a consequence of this erratum, some TLB entries which should be
1262 invalidated are not, resulting in an incoherency in the system page
1263 tables. The workaround changes the TLB flushing routines to invalidate
1264 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001265
Russell King1f0090a2011-03-16 23:35:25 +00001266config PL310_ERRATA_727915
1267 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1268 depends on CACHE_L2X0
1269 help
1270 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1271 operation (offset 0x7FC). This operation runs in background so that
1272 PL310 can handle normal accesses while it is in progress. Under very
1273 rare circumstances, due to this erratum, write data can be lost when
1274 PL310 treats a cacheable write transaction during a Clean &
1275 Invalidate by Way operation.
1276
Will Deacon475d92f2010-09-28 14:02:02 +01001277config ARM_ERRATA_743622
1278 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1279 depends on CPU_V7
1280 help
1281 This option enables the workaround for the 743622 Cortex-A9
1282 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1283 optimisation in the Cortex-A9 Store Buffer may lead to data
1284 corruption. This workaround sets a specific bit in the diagnostic
1285 register of the Cortex-A9 which disables the Store Buffer
1286 optimisation, preventing the defect from occurring. This has no
1287 visible impact on the overall performance or power consumption of the
1288 processor.
1289
Will Deacon9a27c272011-02-18 16:36:35 +01001290config ARM_ERRATA_751472
1291 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1292 depends on CPU_V7 && SMP
1293 help
1294 This option enables the workaround for the 751472 Cortex-A9 (prior
1295 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1296 completion of a following broadcasted operation if the second
1297 operation is received by a CPU before the ICIALLUIS has completed,
1298 potentially leading to corrupted entries in the cache or TLB.
1299
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001300config ARM_ERRATA_753970
1301 bool "ARM errata: cache sync operation may be faulty"
1302 depends on CACHE_PL310
1303 help
1304 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1305
1306 Under some condition the effect of cache sync operation on
1307 the store buffer still remains when the operation completes.
1308 This means that the store buffer is always asked to drain and
1309 this prevents it from merging any further writes. The workaround
1310 is to replace the normal offset of cache sync operation (0x730)
1311 by another offset targeting an unmapped PL310 register 0x740.
1312 This has the same effect as the cache sync operation: store buffer
1313 drain and waiting for all buffers empty.
1314
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001315config ARM_ERRATA_754322
1316 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1317 depends on CPU_V7
1318 help
1319 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1320 r3p*) erratum. A speculative memory access may cause a page table walk
1321 which starts prior to an ASID switch but completes afterwards. This
1322 can populate the micro-TLB with a stale entry which may be hit with
1323 the new ASID. This workaround places two dsb instructions in the mm
1324 switching code so that no page table walks can cross the ASID switch.
1325
Will Deacon5dab26a2011-03-04 12:38:54 +01001326config ARM_ERRATA_754327
1327 bool "ARM errata: no automatic Store Buffer drain"
1328 depends on CPU_V7 && SMP
1329 help
1330 This option enables the workaround for the 754327 Cortex-A9 (prior to
1331 r2p0) erratum. The Store Buffer does not have any automatic draining
1332 mechanism and therefore a livelock may occur if an external agent
1333 continuously polls a memory location waiting to observe an update.
1334 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1335 written polling loops from denying visibility of updates to memory.
1336
Catalin Marinas145e10e2011-08-15 11:04:41 +01001337config ARM_ERRATA_364296
1338 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1339 depends on CPU_V6 && !SMP
1340 help
1341 This options enables the workaround for the 364296 ARM1136
1342 r0p2 erratum (possible cache data corruption with
1343 hit-under-miss enabled). It sets the undocumented bit 31 in
1344 the auxiliary control register and the FI bit in the control
1345 register, thus disabling hit-under-miss without putting the
1346 processor into full low interrupt latency mode. ARM11MPCore
1347 is not affected.
1348
Will Deaconf630c1b2011-09-15 11:45:15 +01001349config ARM_ERRATA_764369
1350 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1351 depends on CPU_V7 && SMP
1352 help
1353 This option enables the workaround for erratum 764369
1354 affecting Cortex-A9 MPCore with two or more processors (all
1355 current revisions). Under certain timing circumstances, a data
1356 cache line maintenance operation by MVA targeting an Inner
1357 Shareable memory region may fail to proceed up to either the
1358 Point of Coherency or to the Point of Unification of the
1359 system. This workaround adds a DSB instruction before the
1360 relevant cache maintenance functions and sets a specific bit
1361 in the diagnostic control register of the SCU.
1362
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363endmenu
1364
1365source "arch/arm/common/Kconfig"
1366
Linus Torvalds1da177e2005-04-16 15:20:36 -07001367menu "Bus support"
1368
1369config ARM_AMBA
1370 bool
1371
1372config ISA
1373 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001374 help
1375 Find out whether you have ISA slots on your motherboard. ISA is the
1376 name of a bus system, i.e. the way the CPU talks to the other stuff
1377 inside your box. Other bus systems are PCI, EISA, MicroChannel
1378 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1379 newer boards don't support it. If you have ISA, say Y, otherwise N.
1380
Russell King065909b2006-01-04 15:44:16 +00001381# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382config ISA_DMA
1383 bool
Russell King065909b2006-01-04 15:44:16 +00001384 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385
Russell King065909b2006-01-04 15:44:16 +00001386# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001387config ISA_DMA_API
1388 bool
Al Viro5cae8412005-05-04 05:39:22 +01001389
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001391 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 help
1393 Find out whether you have a PCI motherboard. PCI is the name of a
1394 bus system, i.e. the way the CPU talks to the other stuff inside
1395 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1396 VESA. If you have PCI, say Y, otherwise N.
1397
Anton Vorontsov52882172010-04-19 13:20:49 +01001398config PCI_DOMAINS
1399 bool
1400 depends on PCI
1401
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001402config PCI_NANOENGINE
1403 bool "BSE nanoEngine PCI support"
1404 depends on SA1100_NANOENGINE
1405 help
1406 Enable PCI on the BSE nanoEngine board.
1407
Matthew Wilcox36e23592007-07-10 10:54:40 -06001408config PCI_SYSCALL
1409 def_bool PCI
1410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411# Select the host bridge type
1412config PCI_HOST_VIA82C505
1413 bool
1414 depends on PCI && ARCH_SHARK
1415 default y
1416
Mike Rapoporta0113a92007-11-25 08:55:34 +01001417config PCI_HOST_ITE8152
1418 bool
1419 depends on PCI && MACH_ARMCORE
1420 default y
1421 select DMABOUNCE
1422
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423source "drivers/pci/Kconfig"
1424
1425source "drivers/pcmcia/Kconfig"
1426
1427endmenu
1428
1429menu "Kernel Features"
1430
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001431source "kernel/time/Kconfig"
1432
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001434 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001435 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001436 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001437 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001438 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001439 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Arnd Bergmannabc3f122011-11-02 02:46:55 +01001440 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001441 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001442 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001443 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001444 help
1445 This enables support for systems with more than one CPU. If you have
1446 a system with only one CPU, like most personal computers, say N. If
1447 you have a system with more than one CPU, say Y.
1448
1449 If you say N here, the kernel will run on single and multiprocessor
1450 machines, but will use only one CPU of a multiprocessor machine. If
1451 you say Y here, the kernel will run on many, but not all, single
1452 processor machines. On a single processor machine, the kernel will
1453 run faster if you say N here.
1454
Paul Bolle395cf962011-08-15 02:02:26 +02001455 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001457 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458
1459 If you don't know what to do here, say N.
1460
Russell Kingf00ec482010-09-04 10:47:48 +01001461config SMP_ON_UP
1462 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1463 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001464 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001465 default y
1466 help
1467 SMP kernels contain instructions which fail on non-SMP processors.
1468 Enabling this option allows the kernel to modify itself to make
1469 these instructions safe. Disabling it allows about 1K of space
1470 savings.
1471
1472 If you don't know what to do here, say Y.
1473
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001474config ARM_CPU_TOPOLOGY
1475 bool "Support cpu topology definition"
1476 depends on SMP && CPU_V7
1477 default y
1478 help
1479 Support ARM cpu topology definition. The MPIDR register defines
1480 affinity between processors which is then used to describe the cpu
1481 topology of an ARM System.
1482
1483config SCHED_MC
1484 bool "Multi-core scheduler support"
1485 depends on ARM_CPU_TOPOLOGY
1486 help
1487 Multi-core scheduler support improves the CPU scheduler's decision
1488 making when dealing with multi-core CPU chips at a cost of slightly
1489 increased overhead in some places. If unsure say N here.
1490
1491config SCHED_SMT
1492 bool "SMT scheduler support"
1493 depends on ARM_CPU_TOPOLOGY
1494 help
1495 Improves the CPU scheduler's decision making when dealing with
1496 MultiThreading at a cost of slightly increased overhead in some
1497 places. If unsure say N here.
1498
Russell Kinga8cbcd92009-05-16 11:51:14 +01001499config HAVE_ARM_SCU
1500 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001501 help
1502 This option enables support for the ARM system coherency unit
1503
Russell Kingf32f4ce2009-05-16 12:14:21 +01001504config HAVE_ARM_TWD
1505 bool
1506 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001507 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001508 help
1509 This options enables support for the ARM timer and watchdog unit
1510
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001511choice
1512 prompt "Memory split"
1513 default VMSPLIT_3G
1514 help
1515 Select the desired split between kernel and user memory.
1516
1517 If you are not absolutely sure what you are doing, leave this
1518 option alone!
1519
1520 config VMSPLIT_3G
1521 bool "3G/1G user/kernel split"
1522 config VMSPLIT_2G
1523 bool "2G/2G user/kernel split"
1524 config VMSPLIT_1G
1525 bool "1G/3G user/kernel split"
1526endchoice
1527
1528config PAGE_OFFSET
1529 hex
1530 default 0x40000000 if VMSPLIT_1G
1531 default 0x80000000 if VMSPLIT_2G
1532 default 0xC0000000
1533
Linus Torvalds1da177e2005-04-16 15:20:36 -07001534config NR_CPUS
1535 int "Maximum number of CPUs (2-32)"
1536 range 2 32
1537 depends on SMP
1538 default "4"
1539
Russell Kinga054a812005-11-02 22:24:33 +00001540config HOTPLUG_CPU
1541 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1542 depends on SMP && HOTPLUG && EXPERIMENTAL
1543 help
1544 Say Y here to experiment with turning CPUs off and on. CPUs
1545 can be controlled through /sys/devices/system/cpu.
1546
Russell King37ee16a2005-11-08 19:08:05 +00001547config LOCAL_TIMERS
1548 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001549 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001550 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001551 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001552 help
1553 Enable support for local timers on SMP platforms, rather then the
1554 legacy IPI broadcast method. Local timers allows the system
1555 accounting to be spread across the timer interval, preventing a
1556 "thundering herd" at every timer tick.
1557
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001558source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001559
Russell Kingf8065812006-03-02 22:41:59 +00001560config HZ
1561 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001562 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001563 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001564 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001565 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001566 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001567 default 100
1568
Catalin Marinas16c79652009-07-24 12:33:02 +01001569config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001570 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001571 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001572 select AEABI
1573 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001574 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001575 help
1576 By enabling this option, the kernel will be compiled in
1577 Thumb-2 mode. A compiler/assembler that understand the unified
1578 ARM-Thumb syntax is needed.
1579
1580 If unsure, say N.
1581
Dave Martin6f685c52011-03-03 11:41:12 +01001582config THUMB2_AVOID_R_ARM_THM_JUMP11
1583 bool "Work around buggy Thumb-2 short branch relocations in gas"
1584 depends on THUMB2_KERNEL && MODULES
1585 default y
1586 help
1587 Various binutils versions can resolve Thumb-2 branches to
1588 locally-defined, preemptible global symbols as short-range "b.n"
1589 branch instructions.
1590
1591 This is a problem, because there's no guarantee the final
1592 destination of the symbol, or any candidate locations for a
1593 trampoline, are within range of the branch. For this reason, the
1594 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1595 relocation in modules at all, and it makes little sense to add
1596 support.
1597
1598 The symptom is that the kernel fails with an "unsupported
1599 relocation" error when loading some modules.
1600
1601 Until fixed tools are available, passing
1602 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1603 code which hits this problem, at the cost of a bit of extra runtime
1604 stack usage in some cases.
1605
1606 The problem is described in more detail at:
1607 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1608
1609 Only Thumb-2 kernels are affected.
1610
1611 Unless you are sure your tools don't have this problem, say Y.
1612
Catalin Marinas0becb082009-07-24 12:32:53 +01001613config ARM_ASM_UNIFIED
1614 bool
1615
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001616config AEABI
1617 bool "Use the ARM EABI to compile the kernel"
1618 help
1619 This option allows for the kernel to be compiled using the latest
1620 ARM ABI (aka EABI). This is only useful if you are using a user
1621 space environment that is also compiled with EABI.
1622
1623 Since there are major incompatibilities between the legacy ABI and
1624 EABI, especially with regard to structure member alignment, this
1625 option also changes the kernel syscall calling convention to
1626 disambiguate both ABIs and allow for backward compatibility support
1627 (selected with CONFIG_OABI_COMPAT).
1628
1629 To use this you need GCC version 4.0.0 or later.
1630
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001631config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001632 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001633 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001634 default y
1635 help
1636 This option preserves the old syscall interface along with the
1637 new (ARM EABI) one. It also provides a compatibility layer to
1638 intercept syscalls that have structure arguments which layout
1639 in memory differs between the legacy ABI and the new ARM EABI
1640 (only for non "thumb" binaries). This option adds a tiny
1641 overhead to all syscalls and produces a slightly larger kernel.
1642 If you know you'll be using only pure EABI user space then you
1643 can say N here. If this option is not selected and you attempt
1644 to execute a legacy ABI binary then the result will be
1645 UNPREDICTABLE (in fact it can be predicted that it won't work
1646 at all). If in doubt say Y.
1647
Mel Gormaneb335752009-05-13 17:34:48 +01001648config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001649 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001650
Russell King05944d72006-11-30 20:43:51 +00001651config ARCH_SPARSEMEM_ENABLE
1652 bool
1653
Russell King07a2f732008-10-01 21:39:58 +01001654config ARCH_SPARSEMEM_DEFAULT
1655 def_bool ARCH_SPARSEMEM_ENABLE
1656
Russell King05944d72006-11-30 20:43:51 +00001657config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001658 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001659
Will Deacon7b7bf492011-05-19 13:21:14 +01001660config HAVE_ARCH_PFN_VALID
1661 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1662
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001663config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001664 bool "High Memory Support"
1665 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001666 help
1667 The address space of ARM processors is only 4 Gigabytes large
1668 and it has to accommodate user address space, kernel address
1669 space as well as some memory mapped IO. That means that, if you
1670 have a large amount of physical memory and/or IO, not all of the
1671 memory can be "permanently mapped" by the kernel. The physical
1672 memory that is not permanently mapped is called "high memory".
1673
1674 Depending on the selected kernel/user memory split, minimum
1675 vmalloc space and actual amount of RAM, you may not need this
1676 option which should result in a slightly faster kernel.
1677
1678 If unsure, say n.
1679
Russell King65cec8e2009-08-17 20:02:06 +01001680config HIGHPTE
1681 bool "Allocate 2nd-level pagetables from highmem"
1682 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001683
Jamie Iles1b8873a2010-02-02 20:25:44 +01001684config HW_PERF_EVENTS
1685 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001686 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001687 default y
1688 help
1689 Enable hardware performance counter support for perf events. If
1690 disabled, perf events will use software events only.
1691
Dave Hansen3f22ab22005-06-23 00:07:43 -07001692source "mm/Kconfig"
1693
Magnus Dammc1b2d972010-07-05 10:00:11 +01001694config FORCE_MAX_ZONEORDER
1695 int "Maximum zone order" if ARCH_SHMOBILE
1696 range 11 64 if ARCH_SHMOBILE
1697 default "9" if SA1111
1698 default "11"
1699 help
1700 The kernel memory allocator divides physically contiguous memory
1701 blocks into "zones", where each zone is a power of two number of
1702 pages. This option selects the largest power of two that the kernel
1703 keeps in the memory allocator. If you need to allocate very large
1704 blocks of physically contiguous memory, then you may need to
1705 increase this value.
1706
1707 This config option is actually maximum order plus one. For example,
1708 a value of 11 means that the largest free memory block is 2^10 pages.
1709
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710config LEDS
1711 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001712 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001713 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1715 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001716 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001717 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042fb2009-05-30 13:56:13 +01001718 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 help
1720 If you say Y here, the LEDs on your machine will be used
1721 to provide useful information about your current system status.
1722
1723 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1724 be able to select which LEDs are active using the options below. If
1725 you are compiling a kernel for the EBSA-110 or the LART however, the
1726 red LED will simply flash regularly to indicate that the system is
1727 still functional. It is safe to say Y here if you have a CATS
1728 system, but the driver will do nothing.
1729
1730config LEDS_TIMER
1731 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001732 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1733 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001735 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 default y if ARCH_EBSA110
1737 help
1738 If you say Y here, one of the system LEDs (the green one on the
1739 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1740 will flash regularly to indicate that the system is still
1741 operational. This is mainly useful to kernel hackers who are
1742 debugging unstable kernels.
1743
1744 The LART uses the same LED for both Timer LED and CPU usage LED
1745 functions. You may choose to use both, but the Timer LED function
1746 will overrule the CPU usage LED.
1747
1748config LEDS_CPU
1749 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001750 !ARCH_OMAP) \
1751 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1752 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001753 depends on LEDS
1754 help
1755 If you say Y here, the red LED will be used to give a good real
1756 time indication of CPU usage, by lighting whenever the idle task
1757 is not currently executing.
1758
1759 The LART uses the same LED for both Timer LED and CPU usage LED
1760 functions. You may choose to use both, but the Timer LED function
1761 will overrule the CPU usage LED.
1762
1763config ALIGNMENT_TRAP
1764 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001765 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001767 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001768 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001769 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1771 address divisible by 4. On 32-bit ARM processors, these non-aligned
1772 fetch/store instructions will be emulated in software if you say
1773 here, which has a severe performance impact. This is necessary for
1774 correct operation of some network protocols. With an IP-only
1775 configuration it is safe to say N, otherwise say Y.
1776
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001777config UACCESS_WITH_MEMCPY
1778 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1779 depends on MMU && EXPERIMENTAL
1780 default y if CPU_FEROCEON
1781 help
1782 Implement faster copy_to_user and clear_user methods for CPU
1783 cores where a 8-word STM instruction give significantly higher
1784 memory write throughput than a sequence of individual 32bit stores.
1785
1786 A possible side effect is a slight increase in scheduling latency
1787 between threads sharing the same address space if they invoke
1788 such copy operations with large buffers.
1789
1790 However, if the CPU data cache is using a write-allocate mode,
1791 this option is unlikely to provide any performance gain.
1792
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001793config SECCOMP
1794 bool
1795 prompt "Enable seccomp to safely compute untrusted bytecode"
1796 ---help---
1797 This kernel feature is useful for number crunching applications
1798 that may need to compute untrusted bytecode during their
1799 execution. By using pipes or other transports made available to
1800 the process as file descriptors supporting the read/write
1801 syscalls, it's possible to isolate those applications in
1802 their own address space using seccomp. Once seccomp is
1803 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1804 and the task is only allowed to execute a few safe syscalls
1805 defined by each seccomp mode.
1806
Nicolas Pitrec743f382010-05-24 23:55:42 -04001807config CC_STACKPROTECTOR
1808 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001809 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001810 help
1811 This option turns on the -fstack-protector GCC feature. This
1812 feature puts, at the beginning of functions, a canary value on
1813 the stack just before the return address, and validates
1814 the value just before actually returning. Stack based buffer
1815 overflows (that need to overwrite this return address) now also
1816 overwrite the canary, which gets detected and the attack is then
1817 neutralized via a kernel panic.
1818 This feature requires gcc version 4.2 or above.
1819
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001820config DEPRECATED_PARAM_STRUCT
1821 bool "Provide old way to pass kernel parameters"
1822 help
1823 This was deprecated in 2001 and announced to live on for 5 years.
1824 Some old boot loaders still use this way.
1825
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826endmenu
1827
1828menu "Boot options"
1829
Grant Likely9eb8f672011-04-28 14:27:20 -06001830config USE_OF
1831 bool "Flattened Device Tree support"
1832 select OF
1833 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001834 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001835 help
1836 Include support for flattened device tree machine descriptions.
1837
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838# Compressed boot loader in ROM. Yes, we really want to ask about
1839# TEXT and BSS so we preserve their values in the config files.
1840config ZBOOT_ROM_TEXT
1841 hex "Compressed ROM boot loader base address"
1842 default "0"
1843 help
1844 The physical address at which the ROM-able zImage is to be
1845 placed in the target. Platforms which normally make use of
1846 ROM-able zImage formats normally set this to a suitable
1847 value in their defconfig file.
1848
1849 If ZBOOT_ROM is not enabled, this has no effect.
1850
1851config ZBOOT_ROM_BSS
1852 hex "Compressed ROM boot loader BSS address"
1853 default "0"
1854 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001855 The base address of an area of read/write memory in the target
1856 for the ROM-able zImage which must be available while the
1857 decompressor is running. It must be large enough to hold the
1858 entire decompressed kernel plus an additional 128 KiB.
1859 Platforms which normally make use of ROM-able zImage formats
1860 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001861
1862 If ZBOOT_ROM is not enabled, this has no effect.
1863
1864config ZBOOT_ROM
1865 bool "Compressed boot loader in ROM/flash"
1866 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1867 help
1868 Say Y here if you intend to execute your compressed kernel image
1869 (zImage) directly from ROM or flash. If unsure, say N.
1870
Simon Horman090ab3f2011-04-26 06:29:53 +01001871choice
1872 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1873 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1874 default ZBOOT_ROM_NONE
1875 help
1876 Include experimental SD/MMC loading code in the ROM-able zImage.
1877 With this enabled it is possible to write the the ROM-able zImage
1878 kernel image to an MMC or SD card and boot the kernel straight
1879 from the reset vector. At reset the processor Mask ROM will load
1880 the first part of the the ROM-able zImage which in turn loads the
1881 rest the kernel image to RAM.
1882
1883config ZBOOT_ROM_NONE
1884 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1885 help
1886 Do not load image from SD or MMC
1887
Simon Hormanf45b1142011-01-11 04:01:08 +01001888config ZBOOT_ROM_MMCIF
1889 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001890 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001891 Load image from MMCIF hardware block.
1892
1893config ZBOOT_ROM_SH_MOBILE_SDHI
1894 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1895 help
1896 Load image from SDHI hardware block
1897
1898endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001899
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001900config ARM_APPENDED_DTB
1901 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1902 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1903 help
1904 With this option, the boot code will look for a device tree binary
1905 (DTB) appended to zImage
1906 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1907
1908 This is meant as a backward compatibility convenience for those
1909 systems with a bootloader that can't be upgraded to accommodate
1910 the documented boot protocol using a device tree.
1911
1912 Beware that there is very little in terms of protection against
1913 this option being confused by leftover garbage in memory that might
1914 look like a DTB header after a reboot if no actual DTB is appended
1915 to zImage. Do not leave this option active in a production kernel
1916 if you don't intend to always append a DTB. Proper passing of the
1917 location into r2 of a bootloader provided DTB is always preferable
1918 to this option.
1919
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001920config ARM_ATAG_DTB_COMPAT
1921 bool "Supplement the appended DTB with traditional ATAG information"
1922 depends on ARM_APPENDED_DTB
1923 help
1924 Some old bootloaders can't be updated to a DTB capable one, yet
1925 they provide ATAGs with memory configuration, the ramdisk address,
1926 the kernel cmdline string, etc. Such information is dynamically
1927 provided by the bootloader and can't always be stored in a static
1928 DTB. To allow a device tree enabled kernel to be used with such
1929 bootloaders, this option allows zImage to extract the information
1930 from the ATAG list and store it at run time into the appended DTB.
1931
Linus Torvalds1da177e2005-04-16 15:20:36 -07001932config CMDLINE
1933 string "Default kernel command string"
1934 default ""
1935 help
1936 On some architectures (EBSA110 and CATS), there is currently no way
1937 for the boot loader to pass arguments to the kernel. For these
1938 architectures, you should supply some command-line options at build
1939 time by entering them here. As a minimum, you should specify the
1940 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1941
Victor Boivie4394c122011-05-04 17:07:55 +01001942choice
1943 prompt "Kernel command line type" if CMDLINE != ""
1944 default CMDLINE_FROM_BOOTLOADER
1945
1946config CMDLINE_FROM_BOOTLOADER
1947 bool "Use bootloader kernel arguments if available"
1948 help
1949 Uses the command-line options passed by the boot loader. If
1950 the boot loader doesn't provide any, the default kernel command
1951 string provided in CMDLINE will be used.
1952
1953config CMDLINE_EXTEND
1954 bool "Extend bootloader kernel arguments"
1955 help
1956 The command-line arguments provided by the boot loader will be
1957 appended to the default kernel command string.
1958
Alexander Holler92d20402010-02-16 19:04:53 +01001959config CMDLINE_FORCE
1960 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001961 help
1962 Always use the default kernel command string, even if the boot
1963 loader passes other arguments to the kernel.
1964 This is useful if you cannot or don't want to change the
1965 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001966endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001967
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968config XIP_KERNEL
1969 bool "Kernel Execute-In-Place from ROM"
1970 depends on !ZBOOT_ROM
1971 help
1972 Execute-In-Place allows the kernel to run from non-volatile storage
1973 directly addressable by the CPU, such as NOR flash. This saves RAM
1974 space since the text section of the kernel is not loaded from flash
1975 to RAM. Read-write sections, such as the data section and stack,
1976 are still copied to RAM. The XIP kernel is not compressed since
1977 it has to run directly from flash, so it will take more space to
1978 store it. The flash address used to link the kernel object files,
1979 and for storing it, is configuration dependent. Therefore, if you
1980 say Y here, you must know the proper physical address where to
1981 store the kernel image depending on your own flash memory usage.
1982
1983 Also note that the make target becomes "make xipImage" rather than
1984 "make zImage" or "make Image". The final kernel binary to put in
1985 ROM memory will be arch/arm/boot/xipImage.
1986
1987 If unsure, say N.
1988
1989config XIP_PHYS_ADDR
1990 hex "XIP Kernel Physical Location"
1991 depends on XIP_KERNEL
1992 default "0x00080000"
1993 help
1994 This is the physical address in your flash memory the kernel will
1995 be linked for and stored to. This address is dependent on your
1996 own flash usage.
1997
Richard Purdiec587e4a2007-02-06 21:29:00 +01001998config KEXEC
1999 bool "Kexec system call (EXPERIMENTAL)"
2000 depends on EXPERIMENTAL
2001 help
2002 kexec is a system call that implements the ability to shutdown your
2003 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002004 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002005 you can start any kernel with it, not just Linux.
2006
2007 It is an ongoing process to be certain the hardware in a machine
2008 is properly shutdown, so do not be surprised if this code does not
2009 initially work for you. It may help to enable device hotplugging
2010 support.
2011
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002012config ATAGS_PROC
2013 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002014 depends on KEXEC
2015 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002016 help
2017 Should the atags used to boot the kernel be exported in an "atags"
2018 file in procfs. Useful with kexec.
2019
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002020config CRASH_DUMP
2021 bool "Build kdump crash kernel (EXPERIMENTAL)"
2022 depends on EXPERIMENTAL
2023 help
2024 Generate crash dump after being started by kexec. This should
2025 be normally only set in special crash dump kernels which are
2026 loaded in the main kernel with kexec-tools into a specially
2027 reserved region and then later executed after a crash by
2028 kdump/kexec. The crash dump kernel must be compiled to a
2029 memory address not used by the main kernel
2030
2031 For more details see Documentation/kdump/kdump.txt
2032
Eric Miaoe69edc792010-07-05 15:56:50 +02002033config AUTO_ZRELADDR
2034 bool "Auto calculation of the decompressed kernel image address"
2035 depends on !ZBOOT_ROM && !ARCH_U300
2036 help
2037 ZRELADDR is the physical address where the decompressed kernel
2038 image will be placed. If AUTO_ZRELADDR is selected, the address
2039 will be determined at run-time by masking the current IP with
2040 0xf8000000. This assumes the zImage being placed in the first 128MB
2041 from start of memory.
2042
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043endmenu
2044
Russell Kingac9d7ef2008-08-18 17:26:00 +01002045menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046
Ben Dooks89c52ed2009-07-30 23:23:24 +01002047if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002048
2049source "drivers/cpufreq/Kconfig"
2050
Yong Shen64f102b2010-10-21 21:18:59 +08002051config CPU_FREQ_IMX
2052 tristate "CPUfreq driver for i.MX CPUs"
2053 depends on ARCH_MXC && CPU_FREQ
2054 help
2055 This enables the CPUfreq driver for i.MX CPUs.
2056
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057config CPU_FREQ_SA1100
2058 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002059
2060config CPU_FREQ_SA1110
2061 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062
2063config CPU_FREQ_INTEGRATOR
2064 tristate "CPUfreq driver for ARM Integrator CPUs"
2065 depends on ARCH_INTEGRATOR && CPU_FREQ
2066 default y
2067 help
2068 This enables the CPUfreq driver for ARM Integrator CPUs.
2069
2070 For details, take a look at <file:Documentation/cpu-freq>.
2071
2072 If in doubt, say Y.
2073
Russell King9e2697f2007-12-14 13:30:14 +00002074config CPU_FREQ_PXA
2075 bool
2076 depends on CPU_FREQ && ARCH_PXA && PXA25x
2077 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002078 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002079 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2080
Ben Dooks9d56c022009-07-30 23:23:25 +01002081config CPU_FREQ_S3C
2082 bool
2083 help
2084 Internal configuration node for common cpufreq on Samsung SoC
2085
2086config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002087 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002088 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2089 select CPU_FREQ_S3C
2090 help
2091 This enables the CPUfreq driver for the Samsung S3C24XX family
2092 of CPUs.
2093
2094 For details, take a look at <file:Documentation/cpu-freq>.
2095
2096 If in doubt, say N.
2097
2098config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002099 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002100 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2101 help
2102 Compile in support for changing the PLL frequency from the
2103 S3C24XX series CPUfreq driver. The PLL takes time to settle
2104 after a frequency change, so by default it is not enabled.
2105
2106 This also means that the PLL tables for the selected CPU(s) will
2107 be built which may increase the size of the kernel image.
2108
2109config CPU_FREQ_S3C24XX_DEBUG
2110 bool "Debug CPUfreq Samsung driver core"
2111 depends on CPU_FREQ_S3C24XX
2112 help
2113 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2114
2115config CPU_FREQ_S3C24XX_IODEBUG
2116 bool "Debug CPUfreq Samsung driver IO timing"
2117 depends on CPU_FREQ_S3C24XX
2118 help
2119 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2120
Ben Dookse6d197a2009-07-30 23:23:42 +01002121config CPU_FREQ_S3C24XX_DEBUGFS
2122 bool "Export debugfs for CPUFreq"
2123 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2124 help
2125 Export status information via debugfs.
2126
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127endif
2128
Russell Kingac9d7ef2008-08-18 17:26:00 +01002129source "drivers/cpuidle/Kconfig"
2130
2131endmenu
2132
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133menu "Floating point emulation"
2134
2135comment "At least one emulation must be selected"
2136
2137config FPE_NWFPE
2138 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002139 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 ---help---
2141 Say Y to include the NWFPE floating point emulator in the kernel.
2142 This is necessary to run most binaries. Linux does not currently
2143 support floating point hardware so you need to say Y here even if
2144 your machine has an FPA or floating point co-processor podule.
2145
2146 You may say N here if you are going to load the Acorn FPEmulator
2147 early in the bootup.
2148
2149config FPE_NWFPE_XP
2150 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002151 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152 help
2153 Say Y to include 80-bit support in the kernel floating-point
2154 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2155 Note that gcc does not generate 80-bit operations by default,
2156 so in most cases this option only enlarges the size of the
2157 floating point emulator without any good reason.
2158
2159 You almost surely want to say N here.
2160
2161config FPE_FASTFPE
2162 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002163 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164 ---help---
2165 Say Y here to include the FAST floating point emulator in the kernel.
2166 This is an experimental much faster emulator which now also has full
2167 precision for the mantissa. It does not support any exceptions.
2168 It is very simple, and approximately 3-6 times faster than NWFPE.
2169
2170 It should be sufficient for most programs. It may be not suitable
2171 for scientific calculations, but you have to check this for yourself.
2172 If you do not feel you need a faster FP emulation you should better
2173 choose NWFPE.
2174
2175config VFP
2176 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002177 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178 help
2179 Say Y to include VFP support code in the kernel. This is needed
2180 if your hardware includes a VFP unit.
2181
2182 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2183 release notes and additional status information.
2184
2185 Say N if your target does not have VFP hardware.
2186
Catalin Marinas25ebee02007-09-25 15:22:24 +01002187config VFPv3
2188 bool
2189 depends on VFP
2190 default y if CPU_V7
2191
Catalin Marinasb5872db2008-01-10 19:16:17 +01002192config NEON
2193 bool "Advanced SIMD (NEON) Extension support"
2194 depends on VFPv3 && CPU_V7
2195 help
2196 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2197 Extension.
2198
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199endmenu
2200
2201menu "Userspace binary formats"
2202
2203source "fs/Kconfig.binfmt"
2204
2205config ARTHUR
2206 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002207 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208 help
2209 Say Y here to include the kernel code necessary if you want to run
2210 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2211 experimental; if this sounds frightening, say N and sleep in peace.
2212 You can also say M here to compile this support as a module (which
2213 will be called arthur).
2214
2215endmenu
2216
2217menu "Power management options"
2218
Russell Kingeceab4a2005-11-15 11:31:41 +00002219source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220
Johannes Bergf4cb5702007-12-08 02:14:00 +01002221config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002222 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002223 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2224 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002225 def_bool y
2226
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002227config ARM_CPU_SUSPEND
2228 def_bool PM_SLEEP
2229
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230endmenu
2231
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002232source "net/Kconfig"
2233
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002234source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235
2236source "fs/Kconfig"
2237
Linus Torvalds1da177e2005-04-16 15:20:36 -07002238source "arch/arm/Kconfig.debug"
2239
2240source "security/Kconfig"
2241
2242source "crypto/Kconfig"
2243
2244source "lib/Kconfig"