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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Adrian Bunk2064c942008-04-28 23:44:43 +02006 select HAVE_IDE
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229source "init/Kconfig"
230
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700231source "kernel/Kconfig.freezer"
232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233menu "System Type"
234
Hyok S. Choi3c427972009-07-24 12:35:00 +0100235config MMU
236 bool "MMU-based Paged Memory Management Support"
237 default y
238 help
239 Select if you want MMU-based virtualised addressing space
240 support by paged memory management. If unsure, say 'Y'.
241
Russell Kingccf50e22010-03-15 19:03:06 +0000242#
243# The "ARM system type" choice list is ordered alphabetically by option
244# text. Please add new entries in the option alphabetic order.
245#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246choice
247 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000248 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100250config ARCH_INTEGRATOR
251 bool "ARM Ltd. Integrator family"
252 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100253 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100254 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900255 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000256 select ICST
Russell King13edd862010-01-15 21:49:23 +0000257 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000258 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000259 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400260 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100261 help
262 Support for ARM's Integrator platform.
263
264config ARCH_REALVIEW
265 bool "ARM Ltd. RealView family"
266 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100267 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900268 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000269 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100270 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100271 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000272 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000273 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000274 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100275 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400276 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277 help
278 This enables support for ARM Ltd RealView boards.
279
280config ARCH_VERSATILE
281 bool "ARM Ltd. Versatile family"
282 select ARM_AMBA
283 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100284 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900285 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000286 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100287 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100288 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000289 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000290 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000291 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000292 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100293 help
294 This enables support for ARM Ltd Versatile board.
295
Russell Kingceade892010-02-11 21:44:53 +0000296config ARCH_VEXPRESS
297 bool "ARM Ltd. Versatile Express family"
298 select ARCH_WANT_OPTIONAL_GPIOLIB
299 select ARM_AMBA
300 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100301 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900302 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000303 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000304 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100305 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000306 select ICST
307 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000308 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000309 help
310 This enables support for the ARM Ltd Versatile Express boards.
311
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100312config ARCH_AT91
313 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100314 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700315 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100316 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100317 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100318 This enables support for systems based on the Atmel AT91RM9200,
319 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320
Russell Kingccf50e22010-03-15 19:03:06 +0000321config ARCH_BCMRING
322 bool "Broadcom BCMRING"
323 depends on MMU
324 select CPU_V6
325 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100326 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100327 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000328 select GENERIC_CLOCKEVENTS
329 select ARCH_WANT_OPTIONAL_GPIOLIB
330 help
331 Support for Broadcom's BCMRing platform.
332
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100334 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000335 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000336 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400337 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000338 help
339 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300341config ARCH_CNS3XXX
342 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200343 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300344 select GENERIC_CLOCKEVENTS
345 select ARM_GIC
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100346 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400347 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300348 help
349 Support for Cavium Networks CNS3XXX platform.
350
Russell King788c9702009-04-26 14:21:59 +0100351config ARCH_GEMINI
352 bool "Cortina Systems Gemini"
353 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100354 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000355 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100356 help
357 Support for the Cortina Systems Gemini family SoCs
358
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200359config ARCH_PRIMA2
360 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
361 select CPU_V7
362 select GENERIC_TIME
363 select NO_IOPORT
364 select GENERIC_CLOCKEVENTS
365 select CLKDEV_LOOKUP
366 select GENERIC_IRQ_CHIP
367 select USE_OF
368 select ZONE_DMA
369 help
370 Support for CSR SiRFSoC ARM Cortex A9 Platform
371
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372config ARCH_EBSA110
373 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000374 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100375 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000376 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000377 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400378 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 help
380 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000381 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 Ethernet interface, two PCMCIA sockets, two serial ports and a
383 parallel port.
384
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000385config ARCH_EP93XX
386 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000387 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000388 select ARM_AMBA
389 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100390 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700391 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100392 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000393 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400394 select NEED_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000395 help
396 This enables support for the Cirrus EP93xx series of CPUs.
397
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398config ARCH_FOOTBRIDGE
399 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000402 select GENERIC_CLOCKEVENTS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400403 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000404 help
405 Support for systems based on the DC21285 companion chip
406 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
Russell King788c9702009-04-26 14:21:59 +0100408config ARCH_MXC
409 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100410 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100411 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100412 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100413 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800414 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100415 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100416 help
417 Support for Freescale MXC/iMX-based family of processors
418
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800419config ARCH_MXS
420 bool "Freescale MXS-based"
421 select GENERIC_CLOCKEVENTS
422 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100423 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100424 select CLKSRC_MMIO
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800425 help
426 Support for Freescale MXS-based family of processors
427
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100428config ARCH_NETX
429 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100430 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100432 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100433 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000434 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100435 This enables support for systems based on the Hilscher NetX Soc
436
437config ARCH_H720X
438 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000439 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100440 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000441 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100442 help
443 This enables support for systems based on the Hynix HMS720x
444
Russell King3b938be2007-05-12 11:25:44 +0100445config ARCH_IOP13XX
446 bool "IOP13xx-based"
447 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000448 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100449 select PLAT_IOP
450 select PCI
451 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100452 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400453 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100454 help
455 Support for Intel's IOP13XX (XScale) family of processors.
456
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100457config ARCH_IOP32X
458 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100459 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000460 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100461 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100462 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100463 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000464 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100465 Support for Intel's 80219 and IOP32X (XScale) family of
466 processors.
467
468config ARCH_IOP33X
469 bool "IOP33x-based"
470 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100472 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100473 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100474 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100475 help
476 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477
Russell King3b938be2007-05-12 11:25:44 +0100478config ARCH_IXP23XX
479 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100480 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000481 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100482 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000483 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400484 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100485 help
Russell King3b938be2007-05-12 11:25:44 +0100486 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487
488config ARCH_IXP2000
489 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100490 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100492 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000493 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400494 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000495 help
496 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497
Russell King3b938be2007-05-12 11:25:44 +0100498config ARCH_IXP4XX
499 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100500 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100501 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000502 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100503 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100504 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000505 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100506 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100507 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100508 help
Russell King3b938be2007-05-12 11:25:44 +0100509 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100510
Saeed Bisharaedabd382009-08-06 15:12:43 +0300511config ARCH_DOVE
512 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300513 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300514 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300515 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300516 select GENERIC_CLOCKEVENTS
517 select PLAT_ORION
518 help
519 Support for the Marvell Dove SoC 88AP510
520
Saeed Bishara651c74c2008-06-22 22:45:06 +0200521config ARCH_KIRKWOOD
522 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000523 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200524 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700525 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200526 select GENERIC_CLOCKEVENTS
527 select PLAT_ORION
528 help
529 Support for the following Marvell Kirkwood series SoCs:
530 88F6180, 88F6192 and 88F6281.
531
Kevin Wells40805942010-07-27 08:49:04 -0700532config ARCH_LPC32XX
533 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100534 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700535 select CPU_ARM926T
536 select ARCH_REQUIRE_GPIOLIB
537 select HAVE_IDE
538 select ARM_AMBA
539 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100540 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700541 select GENERIC_TIME
542 select GENERIC_CLOCKEVENTS
543 help
544 Support for the NXP LPC32XX family of processors
545
Russell King788c9702009-04-26 14:21:59 +0100546config ARCH_MV78XX0
547 bool "Marvell MV78xx0"
548 select CPU_FEROCEON
549 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700550 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100551 select GENERIC_CLOCKEVENTS
552 select PLAT_ORION
553 help
554 Support for the following Marvell MV78xx0 series SoCs:
555 MV781x0, MV782x0.
556
557config ARCH_ORION5X
558 bool "Marvell Orion"
559 depends on MMU
560 select CPU_FEROCEON
561 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700562 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100563 select GENERIC_CLOCKEVENTS
564 select PLAT_ORION
565 help
566 Support for the following Marvell Orion 5x series SoCs:
567 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
568 Orion-2 (5281), Orion-1-90 (6183).
569
570config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500571 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100572 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100573 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100574 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100575 select GENERIC_CLOCKEVENTS
Russell King28bb7bc2010-12-15 21:46:48 +0000576 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100577 select TICK_ONESHOT
578 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400579 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100580 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500581 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100582
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100583config ARCH_KS8695
584 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000585 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100586 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000587 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400588 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100589 help
590 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
591 System-on-Chip devices.
592
Russell King788c9702009-04-26 14:21:59 +0100593config ARCH_W90X900
594 bool "Nuvoton W90X900 CPU"
595 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100596 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100597 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100598 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100599 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200600 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100601 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
602 At present, the w90x900 has been renamed nuc900, regarding
603 the ARM series product line, you can login the following
604 link address to know more.
605
606 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
607 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400608
wanzongshuna62e9032009-12-31 15:06:05 +0100609config ARCH_NUC93X
610 bool "Nuvoton NUC93X CPU"
611 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
wanzongshuna62e9032009-12-31 15:06:05 +0100613 help
614 Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
615 low-power and high performance MPEG-4/JPEG multimedia controller chip.
616
Erik Gillingc5f80062010-01-21 16:53:02 -0800617config ARCH_TEGRA
618 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000619 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100620 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800621 select GENERIC_TIME
622 select GENERIC_CLOCKEVENTS
623 select GENERIC_GPIO
624 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000625 select HAVE_SCHED_CLOCK
Colin Cross7056d422010-04-22 20:30:13 -0700626 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800627 help
628 This enables support for NVIDIA Tegra based systems (Tegra APX,
629 Tegra 6xx and Tegra 2 series).
630
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100631config ARCH_PNX4008
632 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000633 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100634 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000635 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100636 help
637 This enables support for Philips PNX4008 mobile platform.
638
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700640 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100641 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500642 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100643 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100644 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100645 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700646 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100647 select GENERIC_CLOCKEVENTS
Russell King7ce83012010-12-15 21:48:15 +0000648 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000649 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800650 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800651 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800652 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800653 select MULTI_IRQ_HANDLER
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000654 help
eric miao2c8086a2007-09-11 19:13:17 -0700655 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656
Russell King788c9702009-04-26 14:21:59 +0100657config ARCH_MSM
658 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500659 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800660 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700661 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800662 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800663 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800664 Support for Qualcomm MSM/QSD based systems. This runs on the
665 apps processor of the MSM/QSD and depends on a shared memory
666 interface to the modem processor which runs the baseband
667 stack and controls some vital subsystems
668 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800669
Magnus Dammc793c1b2010-02-05 11:14:49 +0000670config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900671 bool "Renesas SH-Mobile / R-Mobile"
672 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900673 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900674 select HAVE_MACH_CLKDEV
Paul Mundt6d72ad32010-11-16 16:10:20 +0900675 select GENERIC_CLOCKEVENTS
676 select NO_IOPORT
677 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000678 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200679 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400680 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000681 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900682 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000683
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684config ARCH_RPC
685 bool "RiscPC"
686 select ARCH_ACORN
687 select FIQ
688 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100689 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100690 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000691 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000692 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100693 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000694 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400695 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696 help
697 On the Acorn Risc-PC, Linux can support the internal IDE disk and
698 CD-ROM interface, serial and parallel port, and the floppy drive.
699
700config ARCH_SA1100
701 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100702 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000703 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100704 select ISA
Russell King05944d72006-11-30 20:43:51 +0000705 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500706 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100707 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000708 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100709 select GENERIC_CLOCKEVENTS
David Brownell9483a572008-07-23 21:26:48 -0700710 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000711 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100712 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700713 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400714 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000715 help
716 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717
718config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900719 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800720 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100721 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700722 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900723 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000724 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900725 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 help
727 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
728 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000729 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730
Ben Dooks63b1f512010-04-30 16:32:26 +0900731 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300732 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900733 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
734
Ben Dooksa08ab632008-10-21 14:06:39 +0100735config ARCH_S3C64XX
736 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000737 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900738 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900739 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100740 select HAVE_CLK
Thomas Abraham226e85f2011-06-14 19:12:26 +0900741 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900742 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000743 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100744 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900745 select ARCH_REQUIRE_GPIOLIB
746 select SAMSUNG_CLKSRC
747 select SAMSUNG_IRQ_VIC_TIMER
748 select SAMSUNG_IRQ_UART
749 select S3C_GPIO_TRACK
750 select S3C_GPIO_PULL_UPDOWN
751 select S3C_GPIO_CFG_S3C24XX
752 select S3C_GPIO_CFG_S3C64XX
753 select S3C_DEV_NAND
754 select USB_ARCH_HAS_OHCI
755 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900756 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900757 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100758 help
759 Samsung S3C64XX series based systems
760
Kukjin Kim49b7a492010-09-07 15:47:18 +0900761config ARCH_S5P64X0
762 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900763 select CPU_V6
764 select GENERIC_GPIO
765 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900766 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900767 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900768 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900769 select GENERIC_CLOCKEVENTS
770 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900771 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900772 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900773 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900774 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
775 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900776
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200777config ARCH_S5PC100
778 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900779 select GENERIC_GPIO
780 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900781 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900782 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100783 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900784 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900785 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900786 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900787 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900788 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200789 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900790
Kukjin Kim170f4e42010-02-24 16:40:44 +0900791config ARCH_S5PV210
792 bool "Samsung S5PV210/S5PC110"
793 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900794 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900795 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900796 select GENERIC_GPIO
797 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900798 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900799 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900800 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900801 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900802 select GENERIC_CLOCKEVENTS
803 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900804 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900805 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900806 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400807 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900808 help
809 Samsung S5PV210/S5PC110 series based systems
810
Kukjin Kim10606aa2011-02-14 15:05:27 +0900811config ARCH_EXYNOS4
812 bool "Samsung EXYNOS4"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900813 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900814 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900815 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900816 select GENERIC_GPIO
817 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900818 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900819 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900820 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900821 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900822 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900823 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400824 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900825 help
Kukjin Kim10606aa2011-02-14 15:05:27 +0900826 Samsung EXYNOS4 series based systems
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900827
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828config ARCH_SHARK
829 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000830 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100831 select ISA
832 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100833 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100834 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000835 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400836 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000837 help
838 Support for the StrongARM based Digital DNARD machine, also known
839 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840
Hans J. Koch83ef3332010-09-17 18:13:56 +0200841config ARCH_TCC_926
842 bool "Telechips TCC ARM926-based systems"
Russell King234b6ced2011-05-08 14:09:47 +0100843 select CLKSRC_MMIO
Hans J. Koch83ef3332010-09-17 18:13:56 +0200844 select CPU_ARM926T
845 select HAVE_CLK
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100846 select CLKDEV_LOOKUP
Hans J. Koch83ef3332010-09-17 18:13:56 +0200847 select GENERIC_CLOCKEVENTS
848 help
849 Support for Telechips TCC ARM926-based systems.
850
Linus Walleijd98aac72009-04-27 10:21:46 +0100851config ARCH_U300
852 bool "ST-Ericsson U300 Series"
853 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100854 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100855 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000856 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100857 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100858 select ARM_AMBA
859 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100860 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100861 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900862 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100863 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100864 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400865 select NEED_MACH_MEMORY_H
Linus Walleijd98aac72009-04-27 10:21:46 +0100866 help
867 Support for ST-Ericsson U300 series mobile platforms.
868
Russell Kingccf50e22010-03-15 19:03:06 +0000869config ARCH_U8500
870 bool "ST-Ericsson U8500 Series"
871 select CPU_V7
872 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000873 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100874 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100875 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100876 select ARCH_HAS_CPUFREQ
Russell Kingccf50e22010-03-15 19:03:06 +0000877 help
878 Support for ST-Ericsson's Ux500 architecture
879
880config ARCH_NOMADIK
881 bool "STMicroelectronics Nomadik"
882 select ARM_AMBA
883 select ARM_VIC
884 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100885 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000886 select GENERIC_CLOCKEVENTS
Russell Kingccf50e22010-03-15 19:03:06 +0000887 select ARCH_REQUIRE_GPIOLIB
888 help
889 Support for the Nomadik platform by ST-Ericsson
890
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100891config ARCH_DAVINCI
892 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100893 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700894 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100895 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700896 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100897 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700898 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100899 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530900 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100901 help
902 Support for TI's DaVinci platform.
903
Russell King3b938be2007-05-12 11:25:44 +0100904config ARCH_OMAP
905 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700906 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700907 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100908 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700909 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700910 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000911 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800912 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100913 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200914 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100915
viresh kumarcee37e52010-04-01 12:31:05 +0100916config PLAT_SPEAR
917 bool "ST SPEAr"
918 select ARM_AMBA
919 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100920 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100921 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100922 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100923 select HAVE_CLK
924 help
925 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
926
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100927config ARCH_VT8500
928 bool "VIA/WonderMedia 85xx"
929 select CPU_ARM926T
930 select GENERIC_GPIO
931 select ARCH_HAS_CPUFREQ
932 select GENERIC_CLOCKEVENTS
933 select ARCH_REQUIRE_GPIOLIB
934 select HAVE_PWM
935 help
936 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800937
John Linnb85a3ef2011-06-20 11:47:27 -0600938config ARCH_ZYNQ
939 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800940 select CPU_V7
941 select GENERIC_TIME
Binghua Duan02c981c2011-07-08 17:40:12 +0800942 select GENERIC_CLOCKEVENTS
943 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600944 select ARM_GIC
945 select ARM_AMBA
946 select ICST
Binghua Duan02c981c2011-07-08 17:40:12 +0800947 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800948 help
John Linnb85a3ef2011-06-20 11:47:27 -0600949 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950endchoice
951
Russell Kingccf50e22010-03-15 19:03:06 +0000952#
953# This is sorted alphabetically by mach-* pathname. However, plat-*
954# Kconfigs may be included either alphabetically (according to the
955# plat- suffix) or along side the corresponding mach-* source.
956#
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-at91/Kconfig"
958
959source "arch/arm/mach-bcmring/Kconfig"
960
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961source "arch/arm/mach-clps711x/Kconfig"
962
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300963source "arch/arm/mach-cns3xxx/Kconfig"
964
Russell King95b8f202010-01-14 11:43:54 +0000965source "arch/arm/mach-davinci/Kconfig"
966
967source "arch/arm/mach-dove/Kconfig"
968
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000969source "arch/arm/mach-ep93xx/Kconfig"
970
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971source "arch/arm/mach-footbridge/Kconfig"
972
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200973source "arch/arm/mach-gemini/Kconfig"
974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-h720x/Kconfig"
976
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977source "arch/arm/mach-integrator/Kconfig"
978
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100979source "arch/arm/mach-iop32x/Kconfig"
980
981source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982
Dan Williams285f5fa2006-12-07 02:59:39 +0100983source "arch/arm/mach-iop13xx/Kconfig"
984
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985source "arch/arm/mach-ixp4xx/Kconfig"
986
987source "arch/arm/mach-ixp2000/Kconfig"
988
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100989source "arch/arm/mach-ixp23xx/Kconfig"
990
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-kirkwood/Kconfig"
992
993source "arch/arm/mach-ks8695/Kconfig"
994
Kevin Wells40805942010-07-27 08:49:04 -0700995source "arch/arm/mach-lpc32xx/Kconfig"
996
Russell King95b8f202010-01-14 11:43:54 +0000997source "arch/arm/mach-msm/Kconfig"
998
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200999source "arch/arm/mach-mv78xx0/Kconfig"
1000
Russell King95b8f202010-01-14 11:43:54 +00001001source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001003source "arch/arm/mach-mxs/Kconfig"
1004
Russell King95b8f202010-01-14 11:43:54 +00001005source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001006
Russell King95b8f202010-01-14 11:43:54 +00001007source "arch/arm/mach-nomadik/Kconfig"
1008source "arch/arm/plat-nomadik/Kconfig"
1009
Russell Kingd91a89102010-02-04 18:13:17 +00001010source "arch/arm/mach-nuc93x/Kconfig"
1011
Tony Lindgrend48af152005-07-10 19:58:17 +01001012source "arch/arm/plat-omap/Kconfig"
1013
1014source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015
Tony Lindgren1dbae812005-11-10 14:26:51 +00001016source "arch/arm/mach-omap2/Kconfig"
1017
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001018source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001019
Russell King95b8f202010-01-14 11:43:54 +00001020source "arch/arm/mach-pxa/Kconfig"
1021source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022
Russell King95b8f202010-01-14 11:43:54 +00001023source "arch/arm/mach-mmp/Kconfig"
1024
1025source "arch/arm/mach-realview/Kconfig"
1026
1027source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001028
Ben Dookscf383672009-11-10 00:14:58 +00001029source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001030source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001031source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001032
viresh kumarcee37e52010-04-01 12:31:05 +01001033source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001034
Hans J. Koch83ef3332010-09-17 18:13:56 +02001035source "arch/arm/plat-tcc/Kconfig"
1036
Ben Dooksa21765a2007-02-11 18:31:01 +01001037if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001039source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001040source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001041source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001042source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001043endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044
Ben Dooksa08ab632008-10-21 14:06:39 +01001045if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001046source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001047endif
1048
Kukjin Kim49b7a492010-09-07 15:47:18 +09001049source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001050
Byungho Min5a7652f2009-06-23 21:39:42 +09001051source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001052
Kukjin Kim170f4e42010-02-24 16:40:44 +09001053source "arch/arm/mach-s5pv210/Kconfig"
1054
Kukjin Kim10606aa2011-02-14 15:05:27 +09001055source "arch/arm/mach-exynos4/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001056
Russell King882d01f2010-03-02 23:40:15 +00001057source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Erik Gillingc5f80062010-01-21 16:53:02 -08001059source "arch/arm/mach-tegra/Kconfig"
1060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
1065source "arch/arm/mach-versatile/Kconfig"
1066
Russell Kingceade892010-02-11 21:44:53 +00001067source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001068source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001069
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001070source "arch/arm/mach-vt8500/Kconfig"
1071
wanzongshun7ec80dd2008-12-03 03:55:38 +01001072source "arch/arm/mach-w90x900/Kconfig"
1073
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074# Definitions to make life easier
1075config ARCH_ACORN
1076 bool
1077
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001078config PLAT_IOP
1079 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001080 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001081 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001082
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001083config PLAT_ORION
1084 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001085 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001086 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001087 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001088
Eric Miaobd5ce432009-01-20 12:06:01 +08001089config PLAT_PXA
1090 bool
1091
Russell Kingf4b8b312010-01-14 12:48:06 +00001092config PLAT_VERSATILE
1093 bool
1094
Russell Kinge3887712010-01-14 13:30:16 +00001095config ARM_TIMER_SP804
1096 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001097 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001098
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099source arch/arm/mm/Kconfig
1100
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001101config IWMMXT
1102 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001103 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1104 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001105 help
1106 Enable support for iWMMXt context switching at run time if
1107 running on a CPU that supports it.
1108
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1110config XSCALE_PMU
1111 bool
1112 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1113 default y
1114
Jamie Iles0f4f0672010-02-02 20:23:15 +01001115config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001116 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001117 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001118 default y
1119 bool
1120
eric miao52108642010-12-13 09:42:34 +01001121config MULTI_IRQ_HANDLER
1122 bool
1123 help
1124 Allow each machine to specify it's own IRQ handler at run time.
1125
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001126if !MMU
1127source "arch/arm/Kconfig-nommu"
1128endif
1129
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001130config ARM_ERRATA_411920
1131 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001132 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001133 help
1134 Invalidation of the Instruction Cache operation can
1135 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1136 It does not affect the MPCore. This option enables the ARM Ltd.
1137 recommended workaround.
1138
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001139config ARM_ERRATA_430973
1140 bool "ARM errata: Stale prediction on replaced interworking branch"
1141 depends on CPU_V7
1142 help
1143 This option enables the workaround for the 430973 Cortex-A8
1144 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1145 interworking branch is replaced with another code sequence at the
1146 same virtual address, whether due to self-modifying code or virtual
1147 to physical address re-mapping, Cortex-A8 does not recover from the
1148 stale interworking branch prediction. This results in Cortex-A8
1149 executing the new code sequence in the incorrect ARM or Thumb state.
1150 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1151 and also flushes the branch target cache at every context switch.
1152 Note that setting specific bits in the ACTLR register may not be
1153 available in non-secure mode.
1154
Catalin Marinas855c5512009-04-30 17:06:15 +01001155config ARM_ERRATA_458693
1156 bool "ARM errata: Processor deadlock when a false hazard is created"
1157 depends on CPU_V7
1158 help
1159 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1160 erratum. For very specific sequences of memory operations, it is
1161 possible for a hazard condition intended for a cache line to instead
1162 be incorrectly associated with a different cache line. This false
1163 hazard might then cause a processor deadlock. The workaround enables
1164 the L1 caching of the NEON accesses and disables the PLD instruction
1165 in the ACTLR register. Note that setting specific bits in the ACTLR
1166 register may not be available in non-secure mode.
1167
Catalin Marinas0516e462009-04-30 17:06:20 +01001168config ARM_ERRATA_460075
1169 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1170 depends on CPU_V7
1171 help
1172 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1173 erratum. Any asynchronous access to the L2 cache may encounter a
1174 situation in which recent store transactions to the L2 cache are lost
1175 and overwritten with stale memory contents from external memory. The
1176 workaround disables the write-allocate mode for the L2 cache via the
1177 ACTLR register. Note that setting specific bits in the ACTLR register
1178 may not be available in non-secure mode.
1179
Will Deacon9f050272010-09-14 09:51:43 +01001180config ARM_ERRATA_742230
1181 bool "ARM errata: DMB operation may be faulty"
1182 depends on CPU_V7 && SMP
1183 help
1184 This option enables the workaround for the 742230 Cortex-A9
1185 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1186 between two write operations may not ensure the correct visibility
1187 ordering of the two writes. This workaround sets a specific bit in
1188 the diagnostic register of the Cortex-A9 which causes the DMB
1189 instruction to behave as a DSB, ensuring the correct behaviour of
1190 the two writes.
1191
Will Deacona672e992010-09-14 09:53:02 +01001192config ARM_ERRATA_742231
1193 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1194 depends on CPU_V7 && SMP
1195 help
1196 This option enables the workaround for the 742231 Cortex-A9
1197 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1198 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1199 accessing some data located in the same cache line, may get corrupted
1200 data due to bad handling of the address hazard when the line gets
1201 replaced from one of the CPUs at the same time as another CPU is
1202 accessing it. This workaround sets specific bits in the diagnostic
1203 register of the Cortex-A9 which reduces the linefill issuing
1204 capabilities of the processor.
1205
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001206config PL310_ERRATA_588369
1207 bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001208 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001209 help
1210 The PL310 L2 cache controller implements three types of Clean &
1211 Invalidate maintenance operations: by Physical Address
1212 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1213 They are architecturally defined to behave as the execution of a
1214 clean operation followed immediately by an invalidate operation,
1215 both performing to the same memory location. This functionality
1216 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001217 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001218
1219config ARM_ERRATA_720789
1220 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1221 depends on CPU_V7 && SMP
1222 help
1223 This option enables the workaround for the 720789 Cortex-A9 (prior to
1224 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1225 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1226 As a consequence of this erratum, some TLB entries which should be
1227 invalidated are not, resulting in an incoherency in the system page
1228 tables. The workaround changes the TLB flushing routines to invalidate
1229 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001230
Russell King1f0090a2011-03-16 23:35:25 +00001231config PL310_ERRATA_727915
1232 bool "Background Clean & Invalidate by Way operation can cause data corruption"
1233 depends on CACHE_L2X0
1234 help
1235 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1236 operation (offset 0x7FC). This operation runs in background so that
1237 PL310 can handle normal accesses while it is in progress. Under very
1238 rare circumstances, due to this erratum, write data can be lost when
1239 PL310 treats a cacheable write transaction during a Clean &
1240 Invalidate by Way operation.
1241
Will Deacon475d92f2010-09-28 14:02:02 +01001242config ARM_ERRATA_743622
1243 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1244 depends on CPU_V7
1245 help
1246 This option enables the workaround for the 743622 Cortex-A9
1247 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1248 optimisation in the Cortex-A9 Store Buffer may lead to data
1249 corruption. This workaround sets a specific bit in the diagnostic
1250 register of the Cortex-A9 which disables the Store Buffer
1251 optimisation, preventing the defect from occurring. This has no
1252 visible impact on the overall performance or power consumption of the
1253 processor.
1254
Will Deacon9a27c272011-02-18 16:36:35 +01001255config ARM_ERRATA_751472
1256 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1257 depends on CPU_V7 && SMP
1258 help
1259 This option enables the workaround for the 751472 Cortex-A9 (prior
1260 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1261 completion of a following broadcasted operation if the second
1262 operation is received by a CPU before the ICIALLUIS has completed,
1263 potentially leading to corrupted entries in the cache or TLB.
1264
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001265config ARM_ERRATA_753970
1266 bool "ARM errata: cache sync operation may be faulty"
1267 depends on CACHE_PL310
1268 help
1269 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1270
1271 Under some condition the effect of cache sync operation on
1272 the store buffer still remains when the operation completes.
1273 This means that the store buffer is always asked to drain and
1274 this prevents it from merging any further writes. The workaround
1275 is to replace the normal offset of cache sync operation (0x730)
1276 by another offset targeting an unmapped PL310 register 0x740.
1277 This has the same effect as the cache sync operation: store buffer
1278 drain and waiting for all buffers empty.
1279
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001280config ARM_ERRATA_754322
1281 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1282 depends on CPU_V7
1283 help
1284 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1285 r3p*) erratum. A speculative memory access may cause a page table walk
1286 which starts prior to an ASID switch but completes afterwards. This
1287 can populate the micro-TLB with a stale entry which may be hit with
1288 the new ASID. This workaround places two dsb instructions in the mm
1289 switching code so that no page table walks can cross the ASID switch.
1290
Will Deacon5dab26af2011-03-04 12:38:54 +01001291config ARM_ERRATA_754327
1292 bool "ARM errata: no automatic Store Buffer drain"
1293 depends on CPU_V7 && SMP
1294 help
1295 This option enables the workaround for the 754327 Cortex-A9 (prior to
1296 r2p0) erratum. The Store Buffer does not have any automatic draining
1297 mechanism and therefore a livelock may occur if an external agent
1298 continuously polls a memory location waiting to observe an update.
1299 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1300 written polling loops from denying visibility of updates to memory.
1301
Catalin Marinas145e10e2011-08-15 11:04:41 +01001302config ARM_ERRATA_364296
1303 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1304 depends on CPU_V6 && !SMP
1305 help
1306 This options enables the workaround for the 364296 ARM1136
1307 r0p2 erratum (possible cache data corruption with
1308 hit-under-miss enabled). It sets the undocumented bit 31 in
1309 the auxiliary control register and the FI bit in the control
1310 register, thus disabling hit-under-miss without putting the
1311 processor into full low interrupt latency mode. ARM11MPCore
1312 is not affected.
1313
Will Deaconf630c1b2011-09-15 11:45:15 +01001314config ARM_ERRATA_764369
1315 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1316 depends on CPU_V7 && SMP
1317 help
1318 This option enables the workaround for erratum 764369
1319 affecting Cortex-A9 MPCore with two or more processors (all
1320 current revisions). Under certain timing circumstances, a data
1321 cache line maintenance operation by MVA targeting an Inner
1322 Shareable memory region may fail to proceed up to either the
1323 Point of Coherency or to the Point of Unification of the
1324 system. This workaround adds a DSB instruction before the
1325 relevant cache maintenance functions and sets a specific bit
1326 in the diagnostic control register of the SCU.
1327
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328endmenu
1329
1330source "arch/arm/common/Kconfig"
1331
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332menu "Bus support"
1333
1334config ARM_AMBA
1335 bool
1336
1337config ISA
1338 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339 help
1340 Find out whether you have ISA slots on your motherboard. ISA is the
1341 name of a bus system, i.e. the way the CPU talks to the other stuff
1342 inside your box. Other bus systems are PCI, EISA, MicroChannel
1343 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1344 newer boards don't support it. If you have ISA, say Y, otherwise N.
1345
Russell King065909b2006-01-04 15:44:16 +00001346# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347config ISA_DMA
1348 bool
Russell King065909b2006-01-04 15:44:16 +00001349 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350
Russell King065909b2006-01-04 15:44:16 +00001351# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001352config ISA_DMA_API
1353 bool
Al Viro5cae8412005-05-04 05:39:22 +01001354
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001356 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357 help
1358 Find out whether you have a PCI motherboard. PCI is the name of a
1359 bus system, i.e. the way the CPU talks to the other stuff inside
1360 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1361 VESA. If you have PCI, say Y, otherwise N.
1362
Anton Vorontsov52882172010-04-19 13:20:49 +01001363config PCI_DOMAINS
1364 bool
1365 depends on PCI
1366
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001367config PCI_NANOENGINE
1368 bool "BSE nanoEngine PCI support"
1369 depends on SA1100_NANOENGINE
1370 help
1371 Enable PCI on the BSE nanoEngine board.
1372
Matthew Wilcox36e23592007-07-10 10:54:40 -06001373config PCI_SYSCALL
1374 def_bool PCI
1375
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376# Select the host bridge type
1377config PCI_HOST_VIA82C505
1378 bool
1379 depends on PCI && ARCH_SHARK
1380 default y
1381
Mike Rapoporta0113a92007-11-25 08:55:34 +01001382config PCI_HOST_ITE8152
1383 bool
1384 depends on PCI && MACH_ARMCORE
1385 default y
1386 select DMABOUNCE
1387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388source "drivers/pci/Kconfig"
1389
1390source "drivers/pcmcia/Kconfig"
1391
1392endmenu
1393
1394menu "Kernel Features"
1395
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001396source "kernel/time/Kconfig"
1397
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001399 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001400 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001401 depends on GENERIC_CLOCKEVENTS
Russell King971acb92010-09-04 08:16:30 +01001402 depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
Daniel Walker89c3ded2010-11-22 12:35:41 -08001403 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
Kukjin Kim10606aa2011-02-14 15:05:27 +09001404 ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
Paul Mundte9d728f2011-01-07 10:51:35 +09001405 ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001406 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001407 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 help
1409 This enables support for systems with more than one CPU. If you have
1410 a system with only one CPU, like most personal computers, say N. If
1411 you have a system with more than one CPU, say Y.
1412
1413 If you say N here, the kernel will run on single and multiprocessor
1414 machines, but will use only one CPU of a multiprocessor machine. If
1415 you say Y here, the kernel will run on many, but not all, single
1416 processor machines. On a single processor machine, the kernel will
1417 run faster if you say N here.
1418
Adrian Bunk03502fa2008-02-03 15:50:21 +02001419 See also <file:Documentation/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001421 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001422
1423 If you don't know what to do here, say N.
1424
Russell Kingf00ec482010-09-04 10:47:48 +01001425config SMP_ON_UP
1426 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1427 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001428 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001429 default y
1430 help
1431 SMP kernels contain instructions which fail on non-SMP processors.
1432 Enabling this option allows the kernel to modify itself to make
1433 these instructions safe. Disabling it allows about 1K of space
1434 savings.
1435
1436 If you don't know what to do here, say Y.
1437
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001438config ARM_CPU_TOPOLOGY
1439 bool "Support cpu topology definition"
1440 depends on SMP && CPU_V7
1441 default y
1442 help
1443 Support ARM cpu topology definition. The MPIDR register defines
1444 affinity between processors which is then used to describe the cpu
1445 topology of an ARM System.
1446
1447config SCHED_MC
1448 bool "Multi-core scheduler support"
1449 depends on ARM_CPU_TOPOLOGY
1450 help
1451 Multi-core scheduler support improves the CPU scheduler's decision
1452 making when dealing with multi-core CPU chips at a cost of slightly
1453 increased overhead in some places. If unsure say N here.
1454
1455config SCHED_SMT
1456 bool "SMT scheduler support"
1457 depends on ARM_CPU_TOPOLOGY
1458 help
1459 Improves the CPU scheduler's decision making when dealing with
1460 MultiThreading at a cost of slightly increased overhead in some
1461 places. If unsure say N here.
1462
Russell Kinga8cbcd92009-05-16 11:51:14 +01001463config HAVE_ARM_SCU
1464 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001465 help
1466 This option enables support for the ARM system coherency unit
1467
Russell Kingf32f4ce2009-05-16 12:14:21 +01001468config HAVE_ARM_TWD
1469 bool
1470 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001471 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001472 help
1473 This options enables support for the ARM timer and watchdog unit
1474
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001475choice
1476 prompt "Memory split"
1477 default VMSPLIT_3G
1478 help
1479 Select the desired split between kernel and user memory.
1480
1481 If you are not absolutely sure what you are doing, leave this
1482 option alone!
1483
1484 config VMSPLIT_3G
1485 bool "3G/1G user/kernel split"
1486 config VMSPLIT_2G
1487 bool "2G/2G user/kernel split"
1488 config VMSPLIT_1G
1489 bool "1G/3G user/kernel split"
1490endchoice
1491
1492config PAGE_OFFSET
1493 hex
1494 default 0x40000000 if VMSPLIT_1G
1495 default 0x80000000 if VMSPLIT_2G
1496 default 0xC0000000
1497
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498config NR_CPUS
1499 int "Maximum number of CPUs (2-32)"
1500 range 2 32
1501 depends on SMP
1502 default "4"
1503
Russell Kinga054a812005-11-02 22:24:33 +00001504config HOTPLUG_CPU
1505 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1506 depends on SMP && HOTPLUG && EXPERIMENTAL
1507 help
1508 Say Y here to experiment with turning CPUs off and on. CPUs
1509 can be controlled through /sys/devices/system/cpu.
1510
Russell King37ee16a2005-11-08 19:08:05 +00001511config LOCAL_TIMERS
1512 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001513 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001514 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001515 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001516 help
1517 Enable support for local timers on SMP platforms, rather then the
1518 legacy IPI broadcast method. Local timers allows the system
1519 accounting to be spread across the timer interval, preventing a
1520 "thundering herd" at every timer tick.
1521
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001522source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523
Russell Kingf8065812006-03-02 22:41:59 +00001524config HZ
1525 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001526 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001527 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001528 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001529 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001530 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001531 default 100
1532
Catalin Marinas16c79652009-07-24 12:33:02 +01001533config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001534 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001535 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001536 select AEABI
1537 select ARM_ASM_UNIFIED
1538 help
1539 By enabling this option, the kernel will be compiled in
1540 Thumb-2 mode. A compiler/assembler that understand the unified
1541 ARM-Thumb syntax is needed.
1542
1543 If unsure, say N.
1544
Dave Martin6f685c52011-03-03 11:41:12 +01001545config THUMB2_AVOID_R_ARM_THM_JUMP11
1546 bool "Work around buggy Thumb-2 short branch relocations in gas"
1547 depends on THUMB2_KERNEL && MODULES
1548 default y
1549 help
1550 Various binutils versions can resolve Thumb-2 branches to
1551 locally-defined, preemptible global symbols as short-range "b.n"
1552 branch instructions.
1553
1554 This is a problem, because there's no guarantee the final
1555 destination of the symbol, or any candidate locations for a
1556 trampoline, are within range of the branch. For this reason, the
1557 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1558 relocation in modules at all, and it makes little sense to add
1559 support.
1560
1561 The symptom is that the kernel fails with an "unsupported
1562 relocation" error when loading some modules.
1563
1564 Until fixed tools are available, passing
1565 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1566 code which hits this problem, at the cost of a bit of extra runtime
1567 stack usage in some cases.
1568
1569 The problem is described in more detail at:
1570 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1571
1572 Only Thumb-2 kernels are affected.
1573
1574 Unless you are sure your tools don't have this problem, say Y.
1575
Catalin Marinas0becb082009-07-24 12:32:53 +01001576config ARM_ASM_UNIFIED
1577 bool
1578
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001579config AEABI
1580 bool "Use the ARM EABI to compile the kernel"
1581 help
1582 This option allows for the kernel to be compiled using the latest
1583 ARM ABI (aka EABI). This is only useful if you are using a user
1584 space environment that is also compiled with EABI.
1585
1586 Since there are major incompatibilities between the legacy ABI and
1587 EABI, especially with regard to structure member alignment, this
1588 option also changes the kernel syscall calling convention to
1589 disambiguate both ABIs and allow for backward compatibility support
1590 (selected with CONFIG_OABI_COMPAT).
1591
1592 To use this you need GCC version 4.0.0 or later.
1593
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001594config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001595 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001596 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001597 default y
1598 help
1599 This option preserves the old syscall interface along with the
1600 new (ARM EABI) one. It also provides a compatibility layer to
1601 intercept syscalls that have structure arguments which layout
1602 in memory differs between the legacy ABI and the new ARM EABI
1603 (only for non "thumb" binaries). This option adds a tiny
1604 overhead to all syscalls and produces a slightly larger kernel.
1605 If you know you'll be using only pure EABI user space then you
1606 can say N here. If this option is not selected and you attempt
1607 to execute a legacy ABI binary then the result will be
1608 UNPREDICTABLE (in fact it can be predicted that it won't work
1609 at all). If in doubt say Y.
1610
Mel Gormaneb335752009-05-13 17:34:48 +01001611config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001612 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001613
Russell King05944d72006-11-30 20:43:51 +00001614config ARCH_SPARSEMEM_ENABLE
1615 bool
1616
Russell King07a2f732008-10-01 21:39:58 +01001617config ARCH_SPARSEMEM_DEFAULT
1618 def_bool ARCH_SPARSEMEM_ENABLE
1619
Russell King05944d72006-11-30 20:43:51 +00001620config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001621 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001622
Will Deacon7b7bf492011-05-19 13:21:14 +01001623config HAVE_ARCH_PFN_VALID
1624 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1625
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001626config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001627 bool "High Memory Support"
1628 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001629 help
1630 The address space of ARM processors is only 4 Gigabytes large
1631 and it has to accommodate user address space, kernel address
1632 space as well as some memory mapped IO. That means that, if you
1633 have a large amount of physical memory and/or IO, not all of the
1634 memory can be "permanently mapped" by the kernel. The physical
1635 memory that is not permanently mapped is called "high memory".
1636
1637 Depending on the selected kernel/user memory split, minimum
1638 vmalloc space and actual amount of RAM, you may not need this
1639 option which should result in a slightly faster kernel.
1640
1641 If unsure, say n.
1642
Russell King65cec8e2009-08-17 20:02:06 +01001643config HIGHPTE
1644 bool "Allocate 2nd-level pagetables from highmem"
1645 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001646
Jamie Iles1b8873a2010-02-02 20:25:44 +01001647config HW_PERF_EVENTS
1648 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001649 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001650 default y
1651 help
1652 Enable hardware performance counter support for perf events. If
1653 disabled, perf events will use software events only.
1654
Dave Hansen3f22ab22005-06-23 00:07:43 -07001655source "mm/Kconfig"
1656
Magnus Dammc1b2d972010-07-05 10:00:11 +01001657config FORCE_MAX_ZONEORDER
1658 int "Maximum zone order" if ARCH_SHMOBILE
1659 range 11 64 if ARCH_SHMOBILE
1660 default "9" if SA1111
1661 default "11"
1662 help
1663 The kernel memory allocator divides physically contiguous memory
1664 blocks into "zones", where each zone is a power of two number of
1665 pages. This option selects the largest power of two that the kernel
1666 keeps in the memory allocator. If you need to allocate very large
1667 blocks of physically contiguous memory, then you may need to
1668 increase this value.
1669
1670 This config option is actually maximum order plus one. For example,
1671 a value of 11 means that the largest free memory block is 2^10 pages.
1672
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673config LEDS
1674 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001675 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001676 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1678 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001679 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001680 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001681 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001682 help
1683 If you say Y here, the LEDs on your machine will be used
1684 to provide useful information about your current system status.
1685
1686 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1687 be able to select which LEDs are active using the options below. If
1688 you are compiling a kernel for the EBSA-110 or the LART however, the
1689 red LED will simply flash regularly to indicate that the system is
1690 still functional. It is safe to say Y here if you have a CATS
1691 system, but the driver will do nothing.
1692
1693config LEDS_TIMER
1694 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001695 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1696 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001697 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001698 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699 default y if ARCH_EBSA110
1700 help
1701 If you say Y here, one of the system LEDs (the green one on the
1702 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1703 will flash regularly to indicate that the system is still
1704 operational. This is mainly useful to kernel hackers who are
1705 debugging unstable kernels.
1706
1707 The LART uses the same LED for both Timer LED and CPU usage LED
1708 functions. You may choose to use both, but the Timer LED function
1709 will overrule the CPU usage LED.
1710
1711config LEDS_CPU
1712 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001713 !ARCH_OMAP) \
1714 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1715 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716 depends on LEDS
1717 help
1718 If you say Y here, the red LED will be used to give a good real
1719 time indication of CPU usage, by lighting whenever the idle task
1720 is not currently executing.
1721
1722 The LART uses the same LED for both Timer LED and CPU usage LED
1723 functions. You may choose to use both, but the Timer LED function
1724 will overrule the CPU usage LED.
1725
1726config ALIGNMENT_TRAP
1727 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001728 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001730 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001732 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1734 address divisible by 4. On 32-bit ARM processors, these non-aligned
1735 fetch/store instructions will be emulated in software if you say
1736 here, which has a severe performance impact. This is necessary for
1737 correct operation of some network protocols. With an IP-only
1738 configuration it is safe to say N, otherwise say Y.
1739
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001740config UACCESS_WITH_MEMCPY
1741 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1742 depends on MMU && EXPERIMENTAL
1743 default y if CPU_FEROCEON
1744 help
1745 Implement faster copy_to_user and clear_user methods for CPU
1746 cores where a 8-word STM instruction give significantly higher
1747 memory write throughput than a sequence of individual 32bit stores.
1748
1749 A possible side effect is a slight increase in scheduling latency
1750 between threads sharing the same address space if they invoke
1751 such copy operations with large buffers.
1752
1753 However, if the CPU data cache is using a write-allocate mode,
1754 this option is unlikely to provide any performance gain.
1755
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001756config SECCOMP
1757 bool
1758 prompt "Enable seccomp to safely compute untrusted bytecode"
1759 ---help---
1760 This kernel feature is useful for number crunching applications
1761 that may need to compute untrusted bytecode during their
1762 execution. By using pipes or other transports made available to
1763 the process as file descriptors supporting the read/write
1764 syscalls, it's possible to isolate those applications in
1765 their own address space using seccomp. Once seccomp is
1766 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1767 and the task is only allowed to execute a few safe syscalls
1768 defined by each seccomp mode.
1769
Nicolas Pitrec743f382010-05-24 23:55:42 -04001770config CC_STACKPROTECTOR
1771 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001772 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001773 help
1774 This option turns on the -fstack-protector GCC feature. This
1775 feature puts, at the beginning of functions, a canary value on
1776 the stack just before the return address, and validates
1777 the value just before actually returning. Stack based buffer
1778 overflows (that need to overwrite this return address) now also
1779 overwrite the canary, which gets detected and the attack is then
1780 neutralized via a kernel panic.
1781 This feature requires gcc version 4.2 or above.
1782
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001783config DEPRECATED_PARAM_STRUCT
1784 bool "Provide old way to pass kernel parameters"
1785 help
1786 This was deprecated in 2001 and announced to live on for 5 years.
1787 Some old boot loaders still use this way.
1788
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789endmenu
1790
1791menu "Boot options"
1792
Grant Likely9eb8f672011-04-28 14:27:20 -06001793config USE_OF
1794 bool "Flattened Device Tree support"
1795 select OF
1796 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001797 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001798 help
1799 Include support for flattened device tree machine descriptions.
1800
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801# Compressed boot loader in ROM. Yes, we really want to ask about
1802# TEXT and BSS so we preserve their values in the config files.
1803config ZBOOT_ROM_TEXT
1804 hex "Compressed ROM boot loader base address"
1805 default "0"
1806 help
1807 The physical address at which the ROM-able zImage is to be
1808 placed in the target. Platforms which normally make use of
1809 ROM-able zImage formats normally set this to a suitable
1810 value in their defconfig file.
1811
1812 If ZBOOT_ROM is not enabled, this has no effect.
1813
1814config ZBOOT_ROM_BSS
1815 hex "Compressed ROM boot loader BSS address"
1816 default "0"
1817 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001818 The base address of an area of read/write memory in the target
1819 for the ROM-able zImage which must be available while the
1820 decompressor is running. It must be large enough to hold the
1821 entire decompressed kernel plus an additional 128 KiB.
1822 Platforms which normally make use of ROM-able zImage formats
1823 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824
1825 If ZBOOT_ROM is not enabled, this has no effect.
1826
1827config ZBOOT_ROM
1828 bool "Compressed boot loader in ROM/flash"
1829 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1830 help
1831 Say Y here if you intend to execute your compressed kernel image
1832 (zImage) directly from ROM or flash. If unsure, say N.
1833
Simon Horman090ab3f2011-04-26 06:29:53 +01001834choice
1835 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1836 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1837 default ZBOOT_ROM_NONE
1838 help
1839 Include experimental SD/MMC loading code in the ROM-able zImage.
1840 With this enabled it is possible to write the the ROM-able zImage
1841 kernel image to an MMC or SD card and boot the kernel straight
1842 from the reset vector. At reset the processor Mask ROM will load
1843 the first part of the the ROM-able zImage which in turn loads the
1844 rest the kernel image to RAM.
1845
1846config ZBOOT_ROM_NONE
1847 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1848 help
1849 Do not load image from SD or MMC
1850
Simon Hormanf45b1142011-01-11 04:01:08 +01001851config ZBOOT_ROM_MMCIF
1852 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001853 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001854 Load image from MMCIF hardware block.
1855
1856config ZBOOT_ROM_SH_MOBILE_SDHI
1857 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1858 help
1859 Load image from SDHI hardware block
1860
1861endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001862
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001863config ARM_APPENDED_DTB
1864 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1865 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1866 help
1867 With this option, the boot code will look for a device tree binary
1868 (DTB) appended to zImage
1869 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1870
1871 This is meant as a backward compatibility convenience for those
1872 systems with a bootloader that can't be upgraded to accommodate
1873 the documented boot protocol using a device tree.
1874
1875 Beware that there is very little in terms of protection against
1876 this option being confused by leftover garbage in memory that might
1877 look like a DTB header after a reboot if no actual DTB is appended
1878 to zImage. Do not leave this option active in a production kernel
1879 if you don't intend to always append a DTB. Proper passing of the
1880 location into r2 of a bootloader provided DTB is always preferable
1881 to this option.
1882
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001883config ARM_ATAG_DTB_COMPAT
1884 bool "Supplement the appended DTB with traditional ATAG information"
1885 depends on ARM_APPENDED_DTB
1886 help
1887 Some old bootloaders can't be updated to a DTB capable one, yet
1888 they provide ATAGs with memory configuration, the ramdisk address,
1889 the kernel cmdline string, etc. Such information is dynamically
1890 provided by the bootloader and can't always be stored in a static
1891 DTB. To allow a device tree enabled kernel to be used with such
1892 bootloaders, this option allows zImage to extract the information
1893 from the ATAG list and store it at run time into the appended DTB.
1894
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895config CMDLINE
1896 string "Default kernel command string"
1897 default ""
1898 help
1899 On some architectures (EBSA110 and CATS), there is currently no way
1900 for the boot loader to pass arguments to the kernel. For these
1901 architectures, you should supply some command-line options at build
1902 time by entering them here. As a minimum, you should specify the
1903 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1904
Victor Boivie4394c122011-05-04 17:07:55 +01001905choice
1906 prompt "Kernel command line type" if CMDLINE != ""
1907 default CMDLINE_FROM_BOOTLOADER
1908
1909config CMDLINE_FROM_BOOTLOADER
1910 bool "Use bootloader kernel arguments if available"
1911 help
1912 Uses the command-line options passed by the boot loader. If
1913 the boot loader doesn't provide any, the default kernel command
1914 string provided in CMDLINE will be used.
1915
1916config CMDLINE_EXTEND
1917 bool "Extend bootloader kernel arguments"
1918 help
1919 The command-line arguments provided by the boot loader will be
1920 appended to the default kernel command string.
1921
Alexander Holler92d20402010-02-16 19:04:53 +01001922config CMDLINE_FORCE
1923 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001924 help
1925 Always use the default kernel command string, even if the boot
1926 loader passes other arguments to the kernel.
1927 This is useful if you cannot or don't want to change the
1928 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001929endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001930
Linus Torvalds1da177e2005-04-16 15:20:36 -07001931config XIP_KERNEL
1932 bool "Kernel Execute-In-Place from ROM"
1933 depends on !ZBOOT_ROM
1934 help
1935 Execute-In-Place allows the kernel to run from non-volatile storage
1936 directly addressable by the CPU, such as NOR flash. This saves RAM
1937 space since the text section of the kernel is not loaded from flash
1938 to RAM. Read-write sections, such as the data section and stack,
1939 are still copied to RAM. The XIP kernel is not compressed since
1940 it has to run directly from flash, so it will take more space to
1941 store it. The flash address used to link the kernel object files,
1942 and for storing it, is configuration dependent. Therefore, if you
1943 say Y here, you must know the proper physical address where to
1944 store the kernel image depending on your own flash memory usage.
1945
1946 Also note that the make target becomes "make xipImage" rather than
1947 "make zImage" or "make Image". The final kernel binary to put in
1948 ROM memory will be arch/arm/boot/xipImage.
1949
1950 If unsure, say N.
1951
1952config XIP_PHYS_ADDR
1953 hex "XIP Kernel Physical Location"
1954 depends on XIP_KERNEL
1955 default "0x00080000"
1956 help
1957 This is the physical address in your flash memory the kernel will
1958 be linked for and stored to. This address is dependent on your
1959 own flash usage.
1960
Richard Purdiec587e4a2007-02-06 21:29:00 +01001961config KEXEC
1962 bool "Kexec system call (EXPERIMENTAL)"
1963 depends on EXPERIMENTAL
1964 help
1965 kexec is a system call that implements the ability to shutdown your
1966 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001967 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001968 you can start any kernel with it, not just Linux.
1969
1970 It is an ongoing process to be certain the hardware in a machine
1971 is properly shutdown, so do not be surprised if this code does not
1972 initially work for you. It may help to enable device hotplugging
1973 support.
1974
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001975config ATAGS_PROC
1976 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01001977 depends on KEXEC
1978 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001979 help
1980 Should the atags used to boot the kernel be exported in an "atags"
1981 file in procfs. Useful with kexec.
1982
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01001983config CRASH_DUMP
1984 bool "Build kdump crash kernel (EXPERIMENTAL)"
1985 depends on EXPERIMENTAL
1986 help
1987 Generate crash dump after being started by kexec. This should
1988 be normally only set in special crash dump kernels which are
1989 loaded in the main kernel with kexec-tools into a specially
1990 reserved region and then later executed after a crash by
1991 kdump/kexec. The crash dump kernel must be compiled to a
1992 memory address not used by the main kernel
1993
1994 For more details see Documentation/kdump/kdump.txt
1995
Eric Miaoe69edc792010-07-05 15:56:50 +02001996config AUTO_ZRELADDR
1997 bool "Auto calculation of the decompressed kernel image address"
1998 depends on !ZBOOT_ROM && !ARCH_U300
1999 help
2000 ZRELADDR is the physical address where the decompressed kernel
2001 image will be placed. If AUTO_ZRELADDR is selected, the address
2002 will be determined at run-time by masking the current IP with
2003 0xf8000000. This assumes the zImage being placed in the first 128MB
2004 from start of memory.
2005
Linus Torvalds1da177e2005-04-16 15:20:36 -07002006endmenu
2007
Russell Kingac9d7ef2008-08-18 17:26:00 +01002008menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009
Ben Dooks89c52ed2009-07-30 23:23:24 +01002010if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002011
2012source "drivers/cpufreq/Kconfig"
2013
Yong Shen64f102b2010-10-21 21:18:59 +08002014config CPU_FREQ_IMX
2015 tristate "CPUfreq driver for i.MX CPUs"
2016 depends on ARCH_MXC && CPU_FREQ
2017 help
2018 This enables the CPUfreq driver for i.MX CPUs.
2019
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020config CPU_FREQ_SA1100
2021 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002022
2023config CPU_FREQ_SA1110
2024 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025
2026config CPU_FREQ_INTEGRATOR
2027 tristate "CPUfreq driver for ARM Integrator CPUs"
2028 depends on ARCH_INTEGRATOR && CPU_FREQ
2029 default y
2030 help
2031 This enables the CPUfreq driver for ARM Integrator CPUs.
2032
2033 For details, take a look at <file:Documentation/cpu-freq>.
2034
2035 If in doubt, say Y.
2036
Russell King9e2697f2007-12-14 13:30:14 +00002037config CPU_FREQ_PXA
2038 bool
2039 depends on CPU_FREQ && ARCH_PXA && PXA25x
2040 default y
2041 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2042
Ben Dooks9d56c022009-07-30 23:23:25 +01002043config CPU_FREQ_S3C
2044 bool
2045 help
2046 Internal configuration node for common cpufreq on Samsung SoC
2047
2048config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002049 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002050 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2051 select CPU_FREQ_S3C
2052 help
2053 This enables the CPUfreq driver for the Samsung S3C24XX family
2054 of CPUs.
2055
2056 For details, take a look at <file:Documentation/cpu-freq>.
2057
2058 If in doubt, say N.
2059
2060config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002061 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002062 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2063 help
2064 Compile in support for changing the PLL frequency from the
2065 S3C24XX series CPUfreq driver. The PLL takes time to settle
2066 after a frequency change, so by default it is not enabled.
2067
2068 This also means that the PLL tables for the selected CPU(s) will
2069 be built which may increase the size of the kernel image.
2070
2071config CPU_FREQ_S3C24XX_DEBUG
2072 bool "Debug CPUfreq Samsung driver core"
2073 depends on CPU_FREQ_S3C24XX
2074 help
2075 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2076
2077config CPU_FREQ_S3C24XX_IODEBUG
2078 bool "Debug CPUfreq Samsung driver IO timing"
2079 depends on CPU_FREQ_S3C24XX
2080 help
2081 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2082
Ben Dookse6d197a2009-07-30 23:23:42 +01002083config CPU_FREQ_S3C24XX_DEBUGFS
2084 bool "Export debugfs for CPUFreq"
2085 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2086 help
2087 Export status information via debugfs.
2088
Linus Torvalds1da177e2005-04-16 15:20:36 -07002089endif
2090
Russell Kingac9d7ef2008-08-18 17:26:00 +01002091source "drivers/cpuidle/Kconfig"
2092
2093endmenu
2094
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095menu "Floating point emulation"
2096
2097comment "At least one emulation must be selected"
2098
2099config FPE_NWFPE
2100 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002101 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002102 ---help---
2103 Say Y to include the NWFPE floating point emulator in the kernel.
2104 This is necessary to run most binaries. Linux does not currently
2105 support floating point hardware so you need to say Y here even if
2106 your machine has an FPA or floating point co-processor podule.
2107
2108 You may say N here if you are going to load the Acorn FPEmulator
2109 early in the bootup.
2110
2111config FPE_NWFPE_XP
2112 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002113 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114 help
2115 Say Y to include 80-bit support in the kernel floating-point
2116 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2117 Note that gcc does not generate 80-bit operations by default,
2118 so in most cases this option only enlarges the size of the
2119 floating point emulator without any good reason.
2120
2121 You almost surely want to say N here.
2122
2123config FPE_FASTFPE
2124 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002125 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126 ---help---
2127 Say Y here to include the FAST floating point emulator in the kernel.
2128 This is an experimental much faster emulator which now also has full
2129 precision for the mantissa. It does not support any exceptions.
2130 It is very simple, and approximately 3-6 times faster than NWFPE.
2131
2132 It should be sufficient for most programs. It may be not suitable
2133 for scientific calculations, but you have to check this for yourself.
2134 If you do not feel you need a faster FP emulation you should better
2135 choose NWFPE.
2136
2137config VFP
2138 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002139 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 help
2141 Say Y to include VFP support code in the kernel. This is needed
2142 if your hardware includes a VFP unit.
2143
2144 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2145 release notes and additional status information.
2146
2147 Say N if your target does not have VFP hardware.
2148
Catalin Marinas25ebee02007-09-25 15:22:24 +01002149config VFPv3
2150 bool
2151 depends on VFP
2152 default y if CPU_V7
2153
Catalin Marinasb5872db2008-01-10 19:16:17 +01002154config NEON
2155 bool "Advanced SIMD (NEON) Extension support"
2156 depends on VFPv3 && CPU_V7
2157 help
2158 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2159 Extension.
2160
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161endmenu
2162
2163menu "Userspace binary formats"
2164
2165source "fs/Kconfig.binfmt"
2166
2167config ARTHUR
2168 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002169 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170 help
2171 Say Y here to include the kernel code necessary if you want to run
2172 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2173 experimental; if this sounds frightening, say N and sleep in peace.
2174 You can also say M here to compile this support as a module (which
2175 will be called arthur).
2176
2177endmenu
2178
2179menu "Power management options"
2180
Russell Kingeceab4a2005-11-15 11:31:41 +00002181source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182
Johannes Bergf4cb5702007-12-08 02:14:00 +01002183config ARCH_SUSPEND_POSSIBLE
Russell King586893e2011-05-25 21:47:48 +01002184 depends on !ARCH_S5P64X0 && !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002185 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2186 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002187 def_bool y
2188
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189endmenu
2190
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002191source "net/Kconfig"
2192
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002193source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194
2195source "fs/Kconfig"
2196
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197source "arch/arm/Kconfig.debug"
2198
2199source "security/Kconfig"
2200
2201source "crypto/Kconfig"
2202
2203source "lib/Kconfig"