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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010012 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060013 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010014 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080015 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040016 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010017 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
18 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053019 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080020 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040021 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080022 select HAVE_KERNEL_GZIP
23 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010024 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010025 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080026 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010027 select HAVE_PERF_EVENTS
28 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010029 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000030 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010031 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010032 select HAVE_GENERIC_HARDIRQS
33 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010034 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053035 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020036 select GENERIC_PCI_IOMAP
Russell Kingfada8dc2012-03-27 10:44:23 +010037 select HAVE_BPF_JIT if NET
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 help
39 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000040 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000042 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 Europe. There is an ARM Linux project with a web page at
44 <http://www.arm.linux.org.uk/>.
45
Russell King74facff2011-06-02 11:16:22 +010046config ARM_HAS_SG_CHAIN
47 bool
48
Russell King1a189b92008-04-13 21:41:55 +010049config HAVE_PWM
50 bool
51
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010052config MIGHT_HAVE_PCI
53 bool
54
Ralf Baechle75e71532007-02-09 17:08:58 +000055config SYS_SUPPORTS_APM_EMULATION
56 bool
57
Russell King112f38a42010-12-15 19:23:07 +000058config HAVE_SCHED_CLOCK
59 bool
60
David Brownell0a938b92007-03-05 00:30:18 -080061config GENERIC_GPIO
62 bool
David Brownell0a938b92007-03-05 00:30:18 -080063
John Stultz5cfc8ee2010-03-24 00:22:36 +000064config ARCH_USES_GETTIMEOFFSET
65 bool
66 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010067
Kevin Hilman0567a0c2007-03-13 20:29:24 +010068config GENERIC_CLOCKEVENTS
69 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010070
Catalin Marinasa8655e82008-02-04 17:30:57 +010071config GENERIC_CLOCKEVENTS_BROADCAST
72 bool
73 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010074 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010075
Rob Herringbf9dd362011-03-04 23:51:59 +010076config KTIME_SCALAR
77 bool
78 default y
79
Linus Walleijbc581772009-09-15 17:30:37 +010080config HAVE_TCM
81 bool
82 select GENERIC_ALLOCATOR
83
Russell Kinge119bff2010-01-10 17:23:29 +000084config HAVE_PROC_CPU
85 bool
86
Al Viro5ea81762007-02-11 15:41:31 +000087config NO_IOPORT
88 bool
Al Viro5ea81762007-02-11 15:41:31 +000089
Linus Torvalds1da177e2005-04-16 15:20:36 -070090config EISA
91 bool
92 ---help---
93 The Extended Industry Standard Architecture (EISA) bus was
94 developed as an open alternative to the IBM MicroChannel bus.
95
96 The EISA bus provided some of the features of the IBM MicroChannel
97 bus while maintaining backward compatibility with cards made for
98 the older ISA bus. The EISA bus saw limited use between 1988 and
99 1995 when it was made obsolete by the PCI bus.
100
101 Say Y here if you are building a kernel for an EISA-based machine.
102
103 Otherwise, say N.
104
105config SBUS
106 bool
107
108config MCA
109 bool
110 help
111 MicroChannel Architecture is found in some IBM PS/2 machines and
112 laptops. It is a bus system similar to PCI or ISA. See
113 <file:Documentation/mca.txt> (and especially the web page given
114 there) before attempting to build an MCA bus kernel.
115
Russell Kingf16fb1e2007-04-28 09:59:37 +0100116config STACKTRACE_SUPPORT
117 bool
118 default y
119
Nicolas Pitref76e9152008-04-24 01:31:46 -0400120config HAVE_LATENCYTOP_SUPPORT
121 bool
122 depends on !SMP
123 default y
124
Russell Kingf16fb1e2007-04-28 09:59:37 +0100125config LOCKDEP_SUPPORT
126 bool
127 default y
128
Russell King7ad1bcb2006-08-27 12:07:02 +0100129config TRACE_IRQFLAGS_SUPPORT
130 bool
131 default y
132
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100133config HARDIRQS_SW_RESEND
134 bool
135 default y
136
137config GENERIC_IRQ_PROBE
138 bool
139 default y
140
Nick Piggin95c354f2008-01-30 13:31:20 +0100141config GENERIC_LOCKBREAK
142 bool
143 default y
144 depends on SMP && PREEMPT
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config RWSEM_GENERIC_SPINLOCK
147 bool
148 default y
149
150config RWSEM_XCHGADD_ALGORITHM
151 bool
152
David Howellsf0d1b0b2006-12-08 02:37:49 -0800153config ARCH_HAS_ILOG2_U32
154 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800155
156config ARCH_HAS_ILOG2_U64
157 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800158
Ben Dooks89c52ed2009-07-30 23:23:24 +0100159config ARCH_HAS_CPUFREQ
160 bool
161 help
162 Internal node to signify that the ARCH has CPUFREQ support
163 and that the relevant menu configurations are displayed for
164 it.
165
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100166config ARCH_HAS_CPU_IDLE_WAIT
167 def_bool y
168
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800169config GENERIC_HWEIGHT
170 bool
171 default y
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173config GENERIC_CALIBRATE_DELAY
174 bool
175 default y
176
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100177config ARCH_MAY_HAVE_PC_FDC
178 bool
179
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800180config ZONE_DMA
181 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800182
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800183config NEED_DMA_MAP_STATE
184 def_bool y
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config GENERIC_ISA_DMA
187 bool
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189config FIQ
190 bool
191
Al Viro034d2f52005-12-19 16:27:59 -0500192config ARCH_MTD_XIP
193 bool
194
Hyok S. Choic760fc12006-03-27 15:18:50 +0100195config VECTORS_BASE
196 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900197 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100198 default DRAM_BASE if REMAP_VECTORS_TO_RAM
199 default 0x00000000
200 help
201 The base address of exception vectors.
202
Russell Kingdc21af92011-01-04 19:09:43 +0000203config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100204 bool "Patch physical to virtual translations at runtime" if EMBEDDED
205 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100206 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000207 depends on !ARCH_REALVIEW || !SPARSEMEM
208 help
Russell King111e9a52011-05-12 10:02:42 +0100209 Patch phys-to-virt and virt-to-phys translation functions at
210 boot and module load time according to the position of the
211 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000212
Russell King111e9a52011-05-12 10:02:42 +0100213 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100214 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000215
Russell Kingc1beced2011-08-10 10:23:45 +0100216 Only disable this option if you know that you do not require
217 this feature (eg, building a kernel for a single machine) and
218 you need to shrink the kernel to the minimal size.
219
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400220config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400221 bool
Russell King111e9a52011-05-12 10:02:42 +0100222 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400223 Select this when mach/memory.h is required to provide special
224 definitions for this platform. The need for mach/memory.h should
225 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400226
227config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100228 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400229 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100230 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400231 help
232 Please provide the physical address corresponding to the
233 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000234
Simon Glass87e040b2011-08-16 23:44:26 +0100235config GENERIC_BUG
236 def_bool y
237 depends on BUG
238
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239source "init/Kconfig"
240
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700241source "kernel/Kconfig.freezer"
242
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243menu "System Type"
244
Hyok S. Choi3c427972009-07-24 12:35:00 +0100245config MMU
246 bool "MMU-based Paged Memory Management Support"
247 default y
248 help
249 Select if you want MMU-based virtualised addressing space
250 support by paged memory management. If unsure, say 'Y'.
251
Russell Kingccf50e22010-03-15 19:03:06 +0000252#
253# The "ARM system type" choice list is ordered alphabetically by option
254# text. Please add new entries in the option alphabetic order.
255#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256choice
257 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000258 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100260config ARCH_INTEGRATOR
261 bool "ARM Ltd. Integrator family"
262 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100263 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100264 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900265 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100266 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000267 select ICST
Russell King13edd862010-01-15 21:49:23 +0000268 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000269 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000270 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400271 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100272 select SPARSE_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100273 help
274 Support for ARM's Integrator platform.
275
276config ARCH_REALVIEW
277 bool "ARM Ltd. RealView family"
278 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100279 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900280 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000281 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100282 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100283 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000284 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000285 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000286 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100287 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400288 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100289 help
290 This enables support for ARM Ltd RealView boards.
291
292config ARCH_VERSATILE
293 bool "ARM Ltd. Versatile family"
294 select ARM_AMBA
295 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100296 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900297 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000298 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100299 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100300 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000301 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000302 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000303 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000304 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305 help
306 This enables support for ARM Ltd Versatile board.
307
Russell Kingceade892010-02-11 21:44:53 +0000308config ARCH_VEXPRESS
309 bool "ARM Ltd. Versatile Express family"
310 select ARCH_WANT_OPTIONAL_GPIOLIB
311 select ARM_AMBA
312 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100313 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900314 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000315 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000316 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100317 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000318 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000319 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000320 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000321 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000322 help
323 This enables support for the ARM Ltd Versatile Express boards.
324
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100325config ARCH_AT91
326 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100327 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700328 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100329 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100331 This enables support for systems based on the Atmel AT91RM9200,
332 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100333
Russell Kingccf50e22010-03-15 19:03:06 +0000334config ARCH_BCMRING
335 bool "Broadcom BCMRING"
336 depends on MMU
337 select CPU_V6
338 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100339 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100340 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000341 select GENERIC_CLOCKEVENTS
342 select ARCH_WANT_OPTIONAL_GPIOLIB
343 help
344 Support for Broadcom's BCMRing platform.
345
Rob Herring220e6cf2011-06-07 10:02:55 -0500346config ARCH_HIGHBANK
347 bool "Calxeda Highbank-based"
348 select ARCH_WANT_OPTIONAL_GPIOLIB
349 select ARM_AMBA
350 select ARM_GIC
351 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000352 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500353 select CLKDEV_LOOKUP
354 select CPU_V7
355 select GENERIC_CLOCKEVENTS
356 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000357 select HAVE_SMP
Rob Herring220e6cf2011-06-07 10:02:55 -0500358 select USE_OF
359 help
360 Support for the Calxeda Highbank SoC based boards.
361
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100363 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000364 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000365 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400366 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000367 help
368 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300370config ARCH_CNS3XXX
371 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200372 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300373 select GENERIC_CLOCKEVENTS
374 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000375 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100376 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400377 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300378 help
379 Support for Cavium Networks CNS3XXX platform.
380
Russell King788c9702009-04-26 14:21:59 +0100381config ARCH_GEMINI
382 bool "Cortina Systems Gemini"
383 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100384 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000385 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100386 help
387 Support for the Cortina Systems Gemini family SoCs
388
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200389config ARCH_PRIMA2
390 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
391 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200392 select NO_IOPORT
393 select GENERIC_CLOCKEVENTS
394 select CLKDEV_LOOKUP
395 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000396 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200397 select USE_OF
398 select ZONE_DMA
399 help
400 Support for CSR SiRFSoC ARM Cortex A9 Platform
401
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402config ARCH_EBSA110
403 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000404 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100405 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000406 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000407 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400408 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 help
410 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000411 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 Ethernet interface, two PCMCIA sockets, two serial ports and a
413 parallel port.
414
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000415config ARCH_EP93XX
416 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000418 select ARM_AMBA
419 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100420 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700421 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100422 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000423 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100424 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000425 help
426 This enables support for the Cirrus EP93xx series of CPUs.
427
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428config ARCH_FOOTBRIDGE
429 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000430 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000432 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200433 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400434 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000435 help
436 Support for systems based on the DC21285 companion chip
437 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
Russell King788c9702009-04-26 14:21:59 +0100439config ARCH_MXC
440 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100441 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100442 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100443 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100444 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800445 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100446 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200447 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100448 help
449 Support for Freescale MXC/iMX-based family of processors
450
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800451config ARCH_MXS
452 bool "Freescale MXS-based"
453 select GENERIC_CLOCKEVENTS
454 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100455 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100456 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800457 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800458 help
459 Support for Freescale MXS-based family of processors
460
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100461config ARCH_NETX
462 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100463 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000464 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100465 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100466 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100468 This enables support for systems based on the Hilscher NetX Soc
469
470config ARCH_H720X
471 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000472 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100473 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000474 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100475 help
476 This enables support for systems based on the Hynix HMS720x
477
Russell King3b938be2007-05-12 11:25:44 +0100478config ARCH_IOP13XX
479 bool "IOP13xx-based"
480 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000481 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100482 select PLAT_IOP
483 select PCI
484 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100485 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400486 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100487 help
488 Support for Intel's IOP13XX (XScale) family of processors.
489
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100490config ARCH_IOP32X
491 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100492 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000493 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100494 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100495 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100496 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000497 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100498 Support for Intel's 80219 and IOP32X (XScale) family of
499 processors.
500
501config ARCH_IOP33X
502 bool "IOP33x-based"
503 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000504 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100505 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100506 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100507 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100508 help
509 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510
Russell King3b938be2007-05-12 11:25:44 +0100511config ARCH_IXP23XX
512 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100513 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000514 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100515 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000516 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400517 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100518 help
Russell King3b938be2007-05-12 11:25:44 +0100519 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
521config ARCH_IXP2000
522 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100523 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000524 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100525 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000526 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400527 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000528 help
529 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
Russell King3b938be2007-05-12 11:25:44 +0100531config ARCH_IXP4XX
532 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100533 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100534 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100536 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100537 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000538 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100539 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100540 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100541 help
Russell King3b938be2007-05-12 11:25:44 +0100542 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100543
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544config ARCH_DOVE
545 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300546 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300547 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300548 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300549 select GENERIC_CLOCKEVENTS
550 select PLAT_ORION
551 help
552 Support for the Marvell Dove SoC 88AP510
553
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554config ARCH_KIRKWOOD
555 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000556 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200557 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700558 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200559 select GENERIC_CLOCKEVENTS
560 select PLAT_ORION
561 help
562 Support for the following Marvell Kirkwood series SoCs:
563 88F6180, 88F6192 and 88F6281.
564
Kevin Wells40805942010-07-27 08:49:04 -0700565config ARCH_LPC32XX
566 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100567 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700568 select CPU_ARM926T
569 select ARCH_REQUIRE_GPIOLIB
570 select HAVE_IDE
571 select ARM_AMBA
572 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100573 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700574 select GENERIC_CLOCKEVENTS
575 help
576 Support for the NXP LPC32XX family of processors
577
Russell King788c9702009-04-26 14:21:59 +0100578config ARCH_MV78XX0
579 bool "Marvell MV78xx0"
580 select CPU_FEROCEON
581 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700582 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100583 select GENERIC_CLOCKEVENTS
584 select PLAT_ORION
585 help
586 Support for the following Marvell MV78xx0 series SoCs:
587 MV781x0, MV782x0.
588
589config ARCH_ORION5X
590 bool "Marvell Orion"
591 depends on MMU
592 select CPU_FEROCEON
593 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700594 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100595 select GENERIC_CLOCKEVENTS
596 select PLAT_ORION
597 help
598 Support for the following Marvell Orion 5x series SoCs:
599 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
600 Orion-2 (5281), Orion-1-90 (6183).
601
602config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500603 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100604 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100605 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100606 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100607 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800608 select GPIO_PXA
Russell King28bb7bc2010-12-15 21:46:48 +0000609 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100610 select TICK_ONESHOT
611 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400612 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800613 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100614 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500615 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100616
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100617config ARCH_KS8695
618 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000619 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100620 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000621 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400622 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100623 help
624 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
625 System-on-Chip devices.
626
Russell King788c9702009-04-26 14:21:59 +0100627config ARCH_W90X900
628 bool "Nuvoton W90X900 CPU"
629 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100630 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100631 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100632 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100633 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200634 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100635 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
636 At present, the w90x900 has been renamed nuc900, regarding
637 the ARM series product line, you can login the following
638 link address to know more.
639
640 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
641 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400642
Erik Gillingc5f80062010-01-21 16:53:02 -0800643config ARCH_TEGRA
644 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000645 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100646 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800647 select GENERIC_CLOCKEVENTS
648 select GENERIC_GPIO
649 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000650 select HAVE_SCHED_CLOCK
Dave Martin3b556582011-12-07 15:38:04 +0000651 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000652 select MIGHT_HAVE_CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700653 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800654 help
655 This enables support for NVIDIA Tegra based systems (Tegra APX,
656 Tegra 6xx and Tegra 2 series).
657
Jamie Ilesaf756552011-07-25 17:36:42 +0100658config ARCH_PICOXCELL
659 bool "Picochip picoXcell"
660 select ARCH_REQUIRE_GPIOLIB
661 select ARM_PATCH_PHYS_VIRT
662 select ARM_VIC
663 select CPU_V6K
664 select DW_APB_TIMER
665 select GENERIC_CLOCKEVENTS
666 select GENERIC_GPIO
667 select HAVE_SCHED_CLOCK
668 select HAVE_TCM
669 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000670 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100671 select USE_OF
672 help
673 This enables support for systems based on the Picochip picoXcell
674 family of Femtocell devices. The picoxcell support requires device tree
675 for all boards.
676
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100677config ARCH_PNX4008
678 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000679 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100680 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000681 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100682 help
683 This enables support for Philips PNX4008 mobile platform.
684
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700686 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100687 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500688 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100689 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100690 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100691 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700692 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100693 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800694 select GPIO_PXA
Russell King7ce83012010-12-15 21:48:15 +0000695 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000696 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800697 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800698 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800699 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800700 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200701 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200702 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000703 help
eric miao2c8086a2007-09-11 19:13:17 -0700704 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705
Russell King788c9702009-04-26 14:21:59 +0100706config ARCH_MSM
707 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500708 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800709 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700710 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800711 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800712 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800713 Support for Qualcomm MSM/QSD based systems. This runs on the
714 apps processor of the MSM/QSD and depends on a shared memory
715 interface to the modem processor which runs the baseband
716 stack and controls some vital subsystems
717 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800718
Magnus Dammc793c1b2010-02-05 11:14:49 +0000719config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900720 bool "Renesas SH-Mobile / R-Mobile"
721 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900722 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900723 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000724 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900725 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000726 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900727 select NO_IOPORT
728 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000729 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200730 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400731 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000732 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900733 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735config ARCH_RPC
736 bool "RiscPC"
737 select ARCH_ACORN
738 select FIQ
739 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100740 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100741 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000742 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000743 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100744 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000745 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200746 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400747 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 help
749 On the Acorn Risc-PC, Linux can support the internal IDE disk and
750 CD-ROM interface, serial and parallel port, and the floppy drive.
751
752config ARCH_SA1100
753 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100754 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000755 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100756 select ISA
Russell King05944d72006-11-30 20:43:51 +0000757 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500758 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100759 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000760 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100761 select GENERIC_CLOCKEVENTS
Jett.Zhouedf3ff52011-11-30 14:32:36 +0800762 select CLKDEV_LOOKUP
Russell King5094b922010-12-15 21:49:06 +0000763 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100764 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700765 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200766 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400767 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000768 help
769 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770
771config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900772 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800773 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100774 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700775 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900776 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000777 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900778 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 help
780 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
781 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000782 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
Ben Dooks63b1f512010-04-30 16:32:26 +0900784 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300785 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900786 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
787
Ben Dooksa08ab632008-10-21 14:06:39 +0100788config ARCH_S3C64XX
789 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000790 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900791 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900792 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100793 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900794 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900795 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900796 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000797 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100798 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900799 select ARCH_REQUIRE_GPIOLIB
800 select SAMSUNG_CLKSRC
801 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900802 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900803 select S3C_DEV_NAND
804 select USB_ARCH_HAS_OHCI
805 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900806 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900807 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100808 help
809 Samsung S3C64XX series based systems
810
Kukjin Kim49b7a492010-09-07 15:47:18 +0900811config ARCH_S5P64X0
812 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900813 select CPU_V6
814 select GENERIC_GPIO
815 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900816 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900817 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900818 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900819 select GENERIC_CLOCKEVENTS
820 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900821 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900822 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900823 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900824 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
825 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900826
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200827config ARCH_S5PC100
828 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900829 select GENERIC_GPIO
830 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900831 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900832 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100833 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900834 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900835 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900836 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900837 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900838 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200839 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900840
Kukjin Kim170f4e42010-02-24 16:40:44 +0900841config ARCH_S5PV210
842 bool "Samsung S5PV210/S5PC110"
843 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900844 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900845 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900846 select GENERIC_GPIO
847 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900848 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900849 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900850 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900851 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900852 select GENERIC_CLOCKEVENTS
853 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900854 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900855 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900856 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400857 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900858 help
859 Samsung S5PV210/S5PC110 series based systems
860
Kukjin Kim83014572011-11-06 13:54:56 +0900861config ARCH_EXYNOS
862 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900863 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900864 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900865 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900866 select GENERIC_GPIO
867 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900868 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900869 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900870 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900871 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900872 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900873 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400874 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900875 help
Kukjin Kim83014572011-11-06 13:54:56 +0900876 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900877
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878config ARCH_SHARK
879 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000880 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100881 select ISA
882 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100883 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100884 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000885 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400886 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000887 help
888 Support for the StrongARM based Digital DNARD machine, also known
889 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
Linus Walleijd98aac72009-04-27 10:21:46 +0100891config ARCH_U300
892 bool "ST-Ericsson U300 Series"
893 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100894 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000896 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100897 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100898 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200899 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100900 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100901 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100902 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900903 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100904 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100905 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100906 help
907 Support for ST-Ericsson U300 series mobile platforms.
908
Russell Kingccf50e22010-03-15 19:03:06 +0000909config ARCH_U8500
910 bool "ST-Ericsson U8500 Series"
911 select CPU_V7
912 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000913 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100914 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100915 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100916 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000917 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000918 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000919 help
920 Support for ST-Ericsson's Ux500 architecture
921
922config ARCH_NOMADIK
923 bool "STMicroelectronics Nomadik"
924 select ARM_AMBA
925 select ARM_VIC
926 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100927 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000928 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000929 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000930 select ARCH_REQUIRE_GPIOLIB
931 help
932 Support for the Nomadik platform by ST-Ericsson
933
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100934config ARCH_DAVINCI
935 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100936 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700937 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100938 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700939 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100940 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700941 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100942 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530943 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100944 help
945 Support for TI's DaVinci platform.
946
Russell King3b938be2007-05-12 11:25:44 +0100947config ARCH_OMAP
948 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700949 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700950 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100951 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700952 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700953 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000954 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800955 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100956 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200957 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100958
viresh kumarcee37e52010-04-01 12:31:05 +0100959config PLAT_SPEAR
960 bool "ST SPEAr"
961 select ARM_AMBA
962 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100963 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100964 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100965 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100966 select HAVE_CLK
967 help
968 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
969
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100970config ARCH_VT8500
971 bool "VIA/WonderMedia 85xx"
972 select CPU_ARM926T
973 select GENERIC_GPIO
974 select ARCH_HAS_CPUFREQ
975 select GENERIC_CLOCKEVENTS
976 select ARCH_REQUIRE_GPIOLIB
977 select HAVE_PWM
978 help
979 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800980
John Linnb85a3ef2011-06-20 11:47:27 -0600981config ARCH_ZYNQ
982 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800983 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800984 select GENERIC_CLOCKEVENTS
985 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600986 select ARM_GIC
987 select ARM_AMBA
988 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000989 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800990 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800991 help
John Linnb85a3ef2011-06-20 11:47:27 -0600992 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993endchoice
994
Russell Kingccf50e22010-03-15 19:03:06 +0000995#
996# This is sorted alphabetically by mach-* pathname. However, plat-*
997# Kconfigs may be included either alphabetically (according to the
998# plat- suffix) or along side the corresponding mach-* source.
999#
Russell King95b8f202010-01-14 11:43:54 +00001000source "arch/arm/mach-at91/Kconfig"
1001
1002source "arch/arm/mach-bcmring/Kconfig"
1003
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004source "arch/arm/mach-clps711x/Kconfig"
1005
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001006source "arch/arm/mach-cns3xxx/Kconfig"
1007
Russell King95b8f202010-01-14 11:43:54 +00001008source "arch/arm/mach-davinci/Kconfig"
1009
1010source "arch/arm/mach-dove/Kconfig"
1011
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001012source "arch/arm/mach-ep93xx/Kconfig"
1013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014source "arch/arm/mach-footbridge/Kconfig"
1015
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001016source "arch/arm/mach-gemini/Kconfig"
1017
Russell King95b8f202010-01-14 11:43:54 +00001018source "arch/arm/mach-h720x/Kconfig"
1019
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020source "arch/arm/mach-integrator/Kconfig"
1021
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001022source "arch/arm/mach-iop32x/Kconfig"
1023
1024source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
Dan Williams285f5fa2006-12-07 02:59:39 +01001026source "arch/arm/mach-iop13xx/Kconfig"
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028source "arch/arm/mach-ixp4xx/Kconfig"
1029
1030source "arch/arm/mach-ixp2000/Kconfig"
1031
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001032source "arch/arm/mach-ixp23xx/Kconfig"
1033
Russell King95b8f202010-01-14 11:43:54 +00001034source "arch/arm/mach-kirkwood/Kconfig"
1035
1036source "arch/arm/mach-ks8695/Kconfig"
1037
Kevin Wells40805942010-07-27 08:49:04 -07001038source "arch/arm/mach-lpc32xx/Kconfig"
1039
Russell King95b8f202010-01-14 11:43:54 +00001040source "arch/arm/mach-msm/Kconfig"
1041
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001042source "arch/arm/mach-mv78xx0/Kconfig"
1043
Russell King95b8f202010-01-14 11:43:54 +00001044source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001046source "arch/arm/mach-mxs/Kconfig"
1047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001049
Russell King95b8f202010-01-14 11:43:54 +00001050source "arch/arm/mach-nomadik/Kconfig"
1051source "arch/arm/plat-nomadik/Kconfig"
1052
Tony Lindgrend48af152005-07-10 19:58:17 +01001053source "arch/arm/plat-omap/Kconfig"
1054
1055source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001056
Tony Lindgren1dbae812005-11-10 14:26:51 +00001057source "arch/arm/mach-omap2/Kconfig"
1058
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001059source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-pxa/Kconfig"
1062source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063
Russell King95b8f202010-01-14 11:43:54 +00001064source "arch/arm/mach-mmp/Kconfig"
1065
1066source "arch/arm/mach-realview/Kconfig"
1067
1068source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001069
Ben Dookscf383672009-11-10 00:14:58 +00001070source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001071source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001072source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001073
viresh kumarcee37e52010-04-01 12:31:05 +01001074source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001075
1076if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001078source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001079source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001080source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001081source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001082endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083
Ben Dooksa08ab632008-10-21 14:06:39 +01001084if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001085source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001086endif
1087
Kukjin Kim49b7a492010-09-07 15:47:18 +09001088source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001089
Byungho Min5a7652f2009-06-23 21:39:42 +09001090source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001091
Kukjin Kim170f4e42010-02-24 16:40:44 +09001092source "arch/arm/mach-s5pv210/Kconfig"
1093
Kukjin Kim83014572011-11-06 13:54:56 +09001094source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001095
Russell King882d01f2010-03-02 23:40:15 +00001096source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
Erik Gillingc5f80062010-01-21 16:53:02 -08001098source "arch/arm/mach-tegra/Kconfig"
1099
Russell King95b8f202010-01-14 11:43:54 +00001100source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101
Russell King95b8f202010-01-14 11:43:54 +00001102source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001103
1104source "arch/arm/mach-versatile/Kconfig"
1105
Russell Kingceade892010-02-11 21:44:53 +00001106source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001107source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001108
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001109source "arch/arm/mach-vt8500/Kconfig"
1110
wanzongshun7ec80dd2008-12-03 03:55:38 +01001111source "arch/arm/mach-w90x900/Kconfig"
1112
Linus Torvalds1da177e2005-04-16 15:20:36 -07001113# Definitions to make life easier
1114config ARCH_ACORN
1115 bool
1116
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001117config PLAT_IOP
1118 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001119 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001120 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001121
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001122config PLAT_ORION
1123 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001124 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001125 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001126 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001127
Eric Miaobd5ce432009-01-20 12:06:01 +08001128config PLAT_PXA
1129 bool
1130
Russell Kingf4b8b312010-01-14 12:48:06 +00001131config PLAT_VERSATILE
1132 bool
1133
Russell Kinge3887712010-01-14 13:30:16 +00001134config ARM_TIMER_SP804
1135 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001136 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001137
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138source arch/arm/mm/Kconfig
1139
Russell King958cab02011-12-11 10:04:00 +00001140config ARM_NR_BANKS
1141 int
1142 default 16 if ARCH_EP93XX
1143 default 8
1144
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001145config IWMMXT
1146 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001147 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1148 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001149 help
1150 Enable support for iWMMXt context switching at run time if
1151 running on a CPU that supports it.
1152
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153config XSCALE_PMU
1154 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001155 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156 default y
1157
Jamie Iles0f4f0672010-02-02 20:23:15 +01001158config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001159 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001160 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001161 default y
1162 bool
1163
eric miao52108642010-12-13 09:42:34 +01001164config MULTI_IRQ_HANDLER
1165 bool
1166 help
1167 Allow each machine to specify it's own IRQ handler at run time.
1168
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001169if !MMU
1170source "arch/arm/Kconfig-nommu"
1171endif
1172
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001173config ARM_ERRATA_411920
1174 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001175 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001176 help
1177 Invalidation of the Instruction Cache operation can
1178 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1179 It does not affect the MPCore. This option enables the ARM Ltd.
1180 recommended workaround.
1181
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001182config ARM_ERRATA_430973
1183 bool "ARM errata: Stale prediction on replaced interworking branch"
1184 depends on CPU_V7
1185 help
1186 This option enables the workaround for the 430973 Cortex-A8
1187 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1188 interworking branch is replaced with another code sequence at the
1189 same virtual address, whether due to self-modifying code or virtual
1190 to physical address re-mapping, Cortex-A8 does not recover from the
1191 stale interworking branch prediction. This results in Cortex-A8
1192 executing the new code sequence in the incorrect ARM or Thumb state.
1193 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1194 and also flushes the branch target cache at every context switch.
1195 Note that setting specific bits in the ACTLR register may not be
1196 available in non-secure mode.
1197
Catalin Marinas855c5512009-04-30 17:06:15 +01001198config ARM_ERRATA_458693
1199 bool "ARM errata: Processor deadlock when a false hazard is created"
1200 depends on CPU_V7
1201 help
1202 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1203 erratum. For very specific sequences of memory operations, it is
1204 possible for a hazard condition intended for a cache line to instead
1205 be incorrectly associated with a different cache line. This false
1206 hazard might then cause a processor deadlock. The workaround enables
1207 the L1 caching of the NEON accesses and disables the PLD instruction
1208 in the ACTLR register. Note that setting specific bits in the ACTLR
1209 register may not be available in non-secure mode.
1210
Catalin Marinas0516e462009-04-30 17:06:20 +01001211config ARM_ERRATA_460075
1212 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1213 depends on CPU_V7
1214 help
1215 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1216 erratum. Any asynchronous access to the L2 cache may encounter a
1217 situation in which recent store transactions to the L2 cache are lost
1218 and overwritten with stale memory contents from external memory. The
1219 workaround disables the write-allocate mode for the L2 cache via the
1220 ACTLR register. Note that setting specific bits in the ACTLR register
1221 may not be available in non-secure mode.
1222
Will Deacon9f050272010-09-14 09:51:43 +01001223config ARM_ERRATA_742230
1224 bool "ARM errata: DMB operation may be faulty"
1225 depends on CPU_V7 && SMP
1226 help
1227 This option enables the workaround for the 742230 Cortex-A9
1228 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1229 between two write operations may not ensure the correct visibility
1230 ordering of the two writes. This workaround sets a specific bit in
1231 the diagnostic register of the Cortex-A9 which causes the DMB
1232 instruction to behave as a DSB, ensuring the correct behaviour of
1233 the two writes.
1234
Will Deacona672e992010-09-14 09:53:02 +01001235config ARM_ERRATA_742231
1236 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1237 depends on CPU_V7 && SMP
1238 help
1239 This option enables the workaround for the 742231 Cortex-A9
1240 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1241 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1242 accessing some data located in the same cache line, may get corrupted
1243 data due to bad handling of the address hazard when the line gets
1244 replaced from one of the CPUs at the same time as another CPU is
1245 accessing it. This workaround sets specific bits in the diagnostic
1246 register of the Cortex-A9 which reduces the linefill issuing
1247 capabilities of the processor.
1248
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001249config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001250 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001251 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001252 help
1253 The PL310 L2 cache controller implements three types of Clean &
1254 Invalidate maintenance operations: by Physical Address
1255 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1256 They are architecturally defined to behave as the execution of a
1257 clean operation followed immediately by an invalidate operation,
1258 both performing to the same memory location. This functionality
1259 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001260 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001261
1262config ARM_ERRATA_720789
1263 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001264 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001265 help
1266 This option enables the workaround for the 720789 Cortex-A9 (prior to
1267 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1268 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1269 As a consequence of this erratum, some TLB entries which should be
1270 invalidated are not, resulting in an incoherency in the system page
1271 tables. The workaround changes the TLB flushing routines to invalidate
1272 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001273
Russell King1f0090a2011-03-16 23:35:25 +00001274config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001275 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001276 depends on CACHE_L2X0
1277 help
1278 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1279 operation (offset 0x7FC). This operation runs in background so that
1280 PL310 can handle normal accesses while it is in progress. Under very
1281 rare circumstances, due to this erratum, write data can be lost when
1282 PL310 treats a cacheable write transaction during a Clean &
1283 Invalidate by Way operation.
1284
Will Deacon475d92f2010-09-28 14:02:02 +01001285config ARM_ERRATA_743622
1286 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1287 depends on CPU_V7
1288 help
1289 This option enables the workaround for the 743622 Cortex-A9
1290 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1291 optimisation in the Cortex-A9 Store Buffer may lead to data
1292 corruption. This workaround sets a specific bit in the diagnostic
1293 register of the Cortex-A9 which disables the Store Buffer
1294 optimisation, preventing the defect from occurring. This has no
1295 visible impact on the overall performance or power consumption of the
1296 processor.
1297
Will Deacon9a27c272011-02-18 16:36:35 +01001298config ARM_ERRATA_751472
1299 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001300 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001301 help
1302 This option enables the workaround for the 751472 Cortex-A9 (prior
1303 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1304 completion of a following broadcasted operation if the second
1305 operation is received by a CPU before the ICIALLUIS has completed,
1306 potentially leading to corrupted entries in the cache or TLB.
1307
Will Deaconfa0ce402011-11-14 17:24:57 +01001308config PL310_ERRATA_753970
1309 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001310 depends on CACHE_PL310
1311 help
1312 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1313
1314 Under some condition the effect of cache sync operation on
1315 the store buffer still remains when the operation completes.
1316 This means that the store buffer is always asked to drain and
1317 this prevents it from merging any further writes. The workaround
1318 is to replace the normal offset of cache sync operation (0x730)
1319 by another offset targeting an unmapped PL310 register 0x740.
1320 This has the same effect as the cache sync operation: store buffer
1321 drain and waiting for all buffers empty.
1322
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001323config ARM_ERRATA_754322
1324 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1325 depends on CPU_V7
1326 help
1327 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1328 r3p*) erratum. A speculative memory access may cause a page table walk
1329 which starts prior to an ASID switch but completes afterwards. This
1330 can populate the micro-TLB with a stale entry which may be hit with
1331 the new ASID. This workaround places two dsb instructions in the mm
1332 switching code so that no page table walks can cross the ASID switch.
1333
Will Deacon5dab26af2011-03-04 12:38:54 +01001334config ARM_ERRATA_754327
1335 bool "ARM errata: no automatic Store Buffer drain"
1336 depends on CPU_V7 && SMP
1337 help
1338 This option enables the workaround for the 754327 Cortex-A9 (prior to
1339 r2p0) erratum. The Store Buffer does not have any automatic draining
1340 mechanism and therefore a livelock may occur if an external agent
1341 continuously polls a memory location waiting to observe an update.
1342 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1343 written polling loops from denying visibility of updates to memory.
1344
Catalin Marinas145e10e2011-08-15 11:04:41 +01001345config ARM_ERRATA_364296
1346 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1347 depends on CPU_V6 && !SMP
1348 help
1349 This options enables the workaround for the 364296 ARM1136
1350 r0p2 erratum (possible cache data corruption with
1351 hit-under-miss enabled). It sets the undocumented bit 31 in
1352 the auxiliary control register and the FI bit in the control
1353 register, thus disabling hit-under-miss without putting the
1354 processor into full low interrupt latency mode. ARM11MPCore
1355 is not affected.
1356
Will Deaconf630c1b2011-09-15 11:45:15 +01001357config ARM_ERRATA_764369
1358 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1359 depends on CPU_V7 && SMP
1360 help
1361 This option enables the workaround for erratum 764369
1362 affecting Cortex-A9 MPCore with two or more processors (all
1363 current revisions). Under certain timing circumstances, a data
1364 cache line maintenance operation by MVA targeting an Inner
1365 Shareable memory region may fail to proceed up to either the
1366 Point of Coherency or to the Point of Unification of the
1367 system. This workaround adds a DSB instruction before the
1368 relevant cache maintenance functions and sets a specific bit
1369 in the diagnostic control register of the SCU.
1370
Will Deacon11ed0ba2011-11-14 17:24:58 +01001371config PL310_ERRATA_769419
1372 bool "PL310 errata: no automatic Store Buffer drain"
1373 depends on CACHE_L2X0
1374 help
1375 On revisions of the PL310 prior to r3p2, the Store Buffer does
1376 not automatically drain. This can cause normal, non-cacheable
1377 writes to be retained when the memory system is idle, leading
1378 to suboptimal I/O performance for drivers using coherent DMA.
1379 This option adds a write barrier to the cpu_idle loop so that,
1380 on systems with an outer cache, the store buffer is drained
1381 explicitly.
1382
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383endmenu
1384
1385source "arch/arm/common/Kconfig"
1386
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387menu "Bus support"
1388
1389config ARM_AMBA
1390 bool
1391
1392config ISA
1393 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 help
1395 Find out whether you have ISA slots on your motherboard. ISA is the
1396 name of a bus system, i.e. the way the CPU talks to the other stuff
1397 inside your box. Other bus systems are PCI, EISA, MicroChannel
1398 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1399 newer boards don't support it. If you have ISA, say Y, otherwise N.
1400
Russell King065909b2006-01-04 15:44:16 +00001401# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402config ISA_DMA
1403 bool
Russell King065909b2006-01-04 15:44:16 +00001404 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405
Russell King065909b2006-01-04 15:44:16 +00001406# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001407config ISA_DMA_API
1408 bool
Al Viro5cae8412005-05-04 05:39:22 +01001409
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001411 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412 help
1413 Find out whether you have a PCI motherboard. PCI is the name of a
1414 bus system, i.e. the way the CPU talks to the other stuff inside
1415 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1416 VESA. If you have PCI, say Y, otherwise N.
1417
Anton Vorontsov52882172010-04-19 13:20:49 +01001418config PCI_DOMAINS
1419 bool
1420 depends on PCI
1421
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001422config PCI_NANOENGINE
1423 bool "BSE nanoEngine PCI support"
1424 depends on SA1100_NANOENGINE
1425 help
1426 Enable PCI on the BSE nanoEngine board.
1427
Matthew Wilcox36e23592007-07-10 10:54:40 -06001428config PCI_SYSCALL
1429 def_bool PCI
1430
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431# Select the host bridge type
1432config PCI_HOST_VIA82C505
1433 bool
1434 depends on PCI && ARCH_SHARK
1435 default y
1436
Mike Rapoporta0113a92007-11-25 08:55:34 +01001437config PCI_HOST_ITE8152
1438 bool
1439 depends on PCI && MACH_ARMCORE
1440 default y
1441 select DMABOUNCE
1442
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443source "drivers/pci/Kconfig"
1444
1445source "drivers/pcmcia/Kconfig"
1446
1447endmenu
1448
1449menu "Kernel Features"
1450
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001451source "kernel/time/Kconfig"
1452
Dave Martin3b556582011-12-07 15:38:04 +00001453config HAVE_SMP
1454 bool
1455 help
1456 This option should be selected by machines which have an SMP-
1457 capable CPU.
1458
1459 The only effect of this option is to make the SMP-related
1460 options available to the user for configuration.
1461
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001463 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001464 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001465 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001466 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001467 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001468 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001469 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470 help
1471 This enables support for systems with more than one CPU. If you have
1472 a system with only one CPU, like most personal computers, say N. If
1473 you have a system with more than one CPU, say Y.
1474
1475 If you say N here, the kernel will run on single and multiprocessor
1476 machines, but will use only one CPU of a multiprocessor machine. If
1477 you say Y here, the kernel will run on many, but not all, single
1478 processor machines. On a single processor machine, the kernel will
1479 run faster if you say N here.
1480
Paul Bolle395cf962011-08-15 02:02:26 +02001481 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001483 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484
1485 If you don't know what to do here, say N.
1486
Russell Kingf00ec482010-09-04 10:47:48 +01001487config SMP_ON_UP
1488 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1489 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001490 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001491 default y
1492 help
1493 SMP kernels contain instructions which fail on non-SMP processors.
1494 Enabling this option allows the kernel to modify itself to make
1495 these instructions safe. Disabling it allows about 1K of space
1496 savings.
1497
1498 If you don't know what to do here, say Y.
1499
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001500config ARM_CPU_TOPOLOGY
1501 bool "Support cpu topology definition"
1502 depends on SMP && CPU_V7
1503 default y
1504 help
1505 Support ARM cpu topology definition. The MPIDR register defines
1506 affinity between processors which is then used to describe the cpu
1507 topology of an ARM System.
1508
1509config SCHED_MC
1510 bool "Multi-core scheduler support"
1511 depends on ARM_CPU_TOPOLOGY
1512 help
1513 Multi-core scheduler support improves the CPU scheduler's decision
1514 making when dealing with multi-core CPU chips at a cost of slightly
1515 increased overhead in some places. If unsure say N here.
1516
1517config SCHED_SMT
1518 bool "SMT scheduler support"
1519 depends on ARM_CPU_TOPOLOGY
1520 help
1521 Improves the CPU scheduler's decision making when dealing with
1522 MultiThreading at a cost of slightly increased overhead in some
1523 places. If unsure say N here.
1524
Russell Kinga8cbcd92009-05-16 11:51:14 +01001525config HAVE_ARM_SCU
1526 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001527 help
1528 This option enables support for the ARM system coherency unit
1529
Russell Kingf32f4ce2009-05-16 12:14:21 +01001530config HAVE_ARM_TWD
1531 bool
1532 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001533 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001534 help
1535 This options enables support for the ARM timer and watchdog unit
1536
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001537choice
1538 prompt "Memory split"
1539 default VMSPLIT_3G
1540 help
1541 Select the desired split between kernel and user memory.
1542
1543 If you are not absolutely sure what you are doing, leave this
1544 option alone!
1545
1546 config VMSPLIT_3G
1547 bool "3G/1G user/kernel split"
1548 config VMSPLIT_2G
1549 bool "2G/2G user/kernel split"
1550 config VMSPLIT_1G
1551 bool "1G/3G user/kernel split"
1552endchoice
1553
1554config PAGE_OFFSET
1555 hex
1556 default 0x40000000 if VMSPLIT_1G
1557 default 0x80000000 if VMSPLIT_2G
1558 default 0xC0000000
1559
Linus Torvalds1da177e2005-04-16 15:20:36 -07001560config NR_CPUS
1561 int "Maximum number of CPUs (2-32)"
1562 range 2 32
1563 depends on SMP
1564 default "4"
1565
Russell Kinga054a812005-11-02 22:24:33 +00001566config HOTPLUG_CPU
1567 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1568 depends on SMP && HOTPLUG && EXPERIMENTAL
1569 help
1570 Say Y here to experiment with turning CPUs off and on. CPUs
1571 can be controlled through /sys/devices/system/cpu.
1572
Russell King37ee16a2005-11-08 19:08:05 +00001573config LOCAL_TIMERS
1574 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001575 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001576 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001577 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001578 help
1579 Enable support for local timers on SMP platforms, rather then the
1580 legacy IPI broadcast method. Local timers allows the system
1581 accounting to be spread across the timer interval, preventing a
1582 "thundering herd" at every timer tick.
1583
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001584config ARCH_NR_GPIO
1585 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001586 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Peter De Schrijver (NVIDIA)4f3f2582011-12-21 10:50:42 +01001587 default 350 if ARCH_U8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001588 default 0
1589 help
1590 Maximum number of GPIOs in the system.
1591
1592 If unsure, leave the default value.
1593
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001594source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595
Russell Kingf8065812006-03-02 22:41:59 +00001596config HZ
1597 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001598 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001599 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001600 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001601 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001602 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001603 default 100
1604
Catalin Marinas16c79652009-07-24 12:33:02 +01001605config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001606 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001607 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001608 select AEABI
1609 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001610 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001611 help
1612 By enabling this option, the kernel will be compiled in
1613 Thumb-2 mode. A compiler/assembler that understand the unified
1614 ARM-Thumb syntax is needed.
1615
1616 If unsure, say N.
1617
Dave Martin6f685c52011-03-03 11:41:12 +01001618config THUMB2_AVOID_R_ARM_THM_JUMP11
1619 bool "Work around buggy Thumb-2 short branch relocations in gas"
1620 depends on THUMB2_KERNEL && MODULES
1621 default y
1622 help
1623 Various binutils versions can resolve Thumb-2 branches to
1624 locally-defined, preemptible global symbols as short-range "b.n"
1625 branch instructions.
1626
1627 This is a problem, because there's no guarantee the final
1628 destination of the symbol, or any candidate locations for a
1629 trampoline, are within range of the branch. For this reason, the
1630 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1631 relocation in modules at all, and it makes little sense to add
1632 support.
1633
1634 The symptom is that the kernel fails with an "unsupported
1635 relocation" error when loading some modules.
1636
1637 Until fixed tools are available, passing
1638 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1639 code which hits this problem, at the cost of a bit of extra runtime
1640 stack usage in some cases.
1641
1642 The problem is described in more detail at:
1643 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1644
1645 Only Thumb-2 kernels are affected.
1646
1647 Unless you are sure your tools don't have this problem, say Y.
1648
Catalin Marinas0becb082009-07-24 12:32:53 +01001649config ARM_ASM_UNIFIED
1650 bool
1651
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001652config AEABI
1653 bool "Use the ARM EABI to compile the kernel"
1654 help
1655 This option allows for the kernel to be compiled using the latest
1656 ARM ABI (aka EABI). This is only useful if you are using a user
1657 space environment that is also compiled with EABI.
1658
1659 Since there are major incompatibilities between the legacy ABI and
1660 EABI, especially with regard to structure member alignment, this
1661 option also changes the kernel syscall calling convention to
1662 disambiguate both ABIs and allow for backward compatibility support
1663 (selected with CONFIG_OABI_COMPAT).
1664
1665 To use this you need GCC version 4.0.0 or later.
1666
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001667config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001668 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001669 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001670 default y
1671 help
1672 This option preserves the old syscall interface along with the
1673 new (ARM EABI) one. It also provides a compatibility layer to
1674 intercept syscalls that have structure arguments which layout
1675 in memory differs between the legacy ABI and the new ARM EABI
1676 (only for non "thumb" binaries). This option adds a tiny
1677 overhead to all syscalls and produces a slightly larger kernel.
1678 If you know you'll be using only pure EABI user space then you
1679 can say N here. If this option is not selected and you attempt
1680 to execute a legacy ABI binary then the result will be
1681 UNPREDICTABLE (in fact it can be predicted that it won't work
1682 at all). If in doubt say Y.
1683
Mel Gormaneb335752009-05-13 17:34:48 +01001684config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001685 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001686
Russell King05944d72006-11-30 20:43:51 +00001687config ARCH_SPARSEMEM_ENABLE
1688 bool
1689
Russell King07a2f732008-10-01 21:39:58 +01001690config ARCH_SPARSEMEM_DEFAULT
1691 def_bool ARCH_SPARSEMEM_ENABLE
1692
Russell King05944d72006-11-30 20:43:51 +00001693config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001694 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001695
Will Deacon7b7bf492011-05-19 13:21:14 +01001696config HAVE_ARCH_PFN_VALID
1697 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1698
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001699config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001700 bool "High Memory Support"
1701 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001702 help
1703 The address space of ARM processors is only 4 Gigabytes large
1704 and it has to accommodate user address space, kernel address
1705 space as well as some memory mapped IO. That means that, if you
1706 have a large amount of physical memory and/or IO, not all of the
1707 memory can be "permanently mapped" by the kernel. The physical
1708 memory that is not permanently mapped is called "high memory".
1709
1710 Depending on the selected kernel/user memory split, minimum
1711 vmalloc space and actual amount of RAM, you may not need this
1712 option which should result in a slightly faster kernel.
1713
1714 If unsure, say n.
1715
Russell King65cec8e2009-08-17 20:02:06 +01001716config HIGHPTE
1717 bool "Allocate 2nd-level pagetables from highmem"
1718 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001719
Jamie Iles1b8873a2010-02-02 20:25:44 +01001720config HW_PERF_EVENTS
1721 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001722 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001723 default y
1724 help
1725 Enable hardware performance counter support for perf events. If
1726 disabled, perf events will use software events only.
1727
Dave Hansen3f22ab22005-06-23 00:07:43 -07001728source "mm/Kconfig"
1729
Magnus Dammc1b2d972010-07-05 10:00:11 +01001730config FORCE_MAX_ZONEORDER
1731 int "Maximum zone order" if ARCH_SHMOBILE
1732 range 11 64 if ARCH_SHMOBILE
1733 default "9" if SA1111
1734 default "11"
1735 help
1736 The kernel memory allocator divides physically contiguous memory
1737 blocks into "zones", where each zone is a power of two number of
1738 pages. This option selects the largest power of two that the kernel
1739 keeps in the memory allocator. If you need to allocate very large
1740 blocks of physically contiguous memory, then you may need to
1741 increase this value.
1742
1743 This config option is actually maximum order plus one. For example,
1744 a value of 11 means that the largest free memory block is 2^10 pages.
1745
Linus Torvalds1da177e2005-04-16 15:20:36 -07001746config LEDS
1747 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001748 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001749 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1751 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001752 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001753 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001754 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 help
1756 If you say Y here, the LEDs on your machine will be used
1757 to provide useful information about your current system status.
1758
1759 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1760 be able to select which LEDs are active using the options below. If
1761 you are compiling a kernel for the EBSA-110 or the LART however, the
1762 red LED will simply flash regularly to indicate that the system is
1763 still functional. It is safe to say Y here if you have a CATS
1764 system, but the driver will do nothing.
1765
1766config LEDS_TIMER
1767 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001768 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1769 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001771 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 default y if ARCH_EBSA110
1773 help
1774 If you say Y here, one of the system LEDs (the green one on the
1775 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1776 will flash regularly to indicate that the system is still
1777 operational. This is mainly useful to kernel hackers who are
1778 debugging unstable kernels.
1779
1780 The LART uses the same LED for both Timer LED and CPU usage LED
1781 functions. You may choose to use both, but the Timer LED function
1782 will overrule the CPU usage LED.
1783
1784config LEDS_CPU
1785 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001786 !ARCH_OMAP) \
1787 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1788 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789 depends on LEDS
1790 help
1791 If you say Y here, the red LED will be used to give a good real
1792 time indication of CPU usage, by lighting whenever the idle task
1793 is not currently executing.
1794
1795 The LART uses the same LED for both Timer LED and CPU usage LED
1796 functions. You may choose to use both, but the Timer LED function
1797 will overrule the CPU usage LED.
1798
1799config ALIGNMENT_TRAP
1800 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001801 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001802 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001803 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001805 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001806 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1807 address divisible by 4. On 32-bit ARM processors, these non-aligned
1808 fetch/store instructions will be emulated in software if you say
1809 here, which has a severe performance impact. This is necessary for
1810 correct operation of some network protocols. With an IP-only
1811 configuration it is safe to say N, otherwise say Y.
1812
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001813config UACCESS_WITH_MEMCPY
1814 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1815 depends on MMU && EXPERIMENTAL
1816 default y if CPU_FEROCEON
1817 help
1818 Implement faster copy_to_user and clear_user methods for CPU
1819 cores where a 8-word STM instruction give significantly higher
1820 memory write throughput than a sequence of individual 32bit stores.
1821
1822 A possible side effect is a slight increase in scheduling latency
1823 between threads sharing the same address space if they invoke
1824 such copy operations with large buffers.
1825
1826 However, if the CPU data cache is using a write-allocate mode,
1827 this option is unlikely to provide any performance gain.
1828
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001829config SECCOMP
1830 bool
1831 prompt "Enable seccomp to safely compute untrusted bytecode"
1832 ---help---
1833 This kernel feature is useful for number crunching applications
1834 that may need to compute untrusted bytecode during their
1835 execution. By using pipes or other transports made available to
1836 the process as file descriptors supporting the read/write
1837 syscalls, it's possible to isolate those applications in
1838 their own address space using seccomp. Once seccomp is
1839 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1840 and the task is only allowed to execute a few safe syscalls
1841 defined by each seccomp mode.
1842
Nicolas Pitrec743f382010-05-24 23:55:42 -04001843config CC_STACKPROTECTOR
1844 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001845 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001846 help
1847 This option turns on the -fstack-protector GCC feature. This
1848 feature puts, at the beginning of functions, a canary value on
1849 the stack just before the return address, and validates
1850 the value just before actually returning. Stack based buffer
1851 overflows (that need to overwrite this return address) now also
1852 overwrite the canary, which gets detected and the attack is then
1853 neutralized via a kernel panic.
1854 This feature requires gcc version 4.2 or above.
1855
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001856config DEPRECATED_PARAM_STRUCT
1857 bool "Provide old way to pass kernel parameters"
1858 help
1859 This was deprecated in 2001 and announced to live on for 5 years.
1860 Some old boot loaders still use this way.
1861
Linus Torvalds1da177e2005-04-16 15:20:36 -07001862endmenu
1863
1864menu "Boot options"
1865
Grant Likely9eb8f672011-04-28 14:27:20 -06001866config USE_OF
1867 bool "Flattened Device Tree support"
1868 select OF
1869 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001870 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001871 help
1872 Include support for flattened device tree machine descriptions.
1873
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874# Compressed boot loader in ROM. Yes, we really want to ask about
1875# TEXT and BSS so we preserve their values in the config files.
1876config ZBOOT_ROM_TEXT
1877 hex "Compressed ROM boot loader base address"
1878 default "0"
1879 help
1880 The physical address at which the ROM-able zImage is to be
1881 placed in the target. Platforms which normally make use of
1882 ROM-able zImage formats normally set this to a suitable
1883 value in their defconfig file.
1884
1885 If ZBOOT_ROM is not enabled, this has no effect.
1886
1887config ZBOOT_ROM_BSS
1888 hex "Compressed ROM boot loader BSS address"
1889 default "0"
1890 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001891 The base address of an area of read/write memory in the target
1892 for the ROM-able zImage which must be available while the
1893 decompressor is running. It must be large enough to hold the
1894 entire decompressed kernel plus an additional 128 KiB.
1895 Platforms which normally make use of ROM-able zImage formats
1896 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001897
1898 If ZBOOT_ROM is not enabled, this has no effect.
1899
1900config ZBOOT_ROM
1901 bool "Compressed boot loader in ROM/flash"
1902 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1903 help
1904 Say Y here if you intend to execute your compressed kernel image
1905 (zImage) directly from ROM or flash. If unsure, say N.
1906
Simon Horman090ab3f2011-04-26 06:29:53 +01001907choice
1908 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1909 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1910 default ZBOOT_ROM_NONE
1911 help
1912 Include experimental SD/MMC loading code in the ROM-able zImage.
1913 With this enabled it is possible to write the the ROM-able zImage
1914 kernel image to an MMC or SD card and boot the kernel straight
1915 from the reset vector. At reset the processor Mask ROM will load
1916 the first part of the the ROM-able zImage which in turn loads the
1917 rest the kernel image to RAM.
1918
1919config ZBOOT_ROM_NONE
1920 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1921 help
1922 Do not load image from SD or MMC
1923
Simon Hormanf45b1142011-01-11 04:01:08 +01001924config ZBOOT_ROM_MMCIF
1925 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001926 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001927 Load image from MMCIF hardware block.
1928
1929config ZBOOT_ROM_SH_MOBILE_SDHI
1930 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1931 help
1932 Load image from SDHI hardware block
1933
1934endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001935
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001936config ARM_APPENDED_DTB
1937 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1938 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1939 help
1940 With this option, the boot code will look for a device tree binary
1941 (DTB) appended to zImage
1942 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1943
1944 This is meant as a backward compatibility convenience for those
1945 systems with a bootloader that can't be upgraded to accommodate
1946 the documented boot protocol using a device tree.
1947
1948 Beware that there is very little in terms of protection against
1949 this option being confused by leftover garbage in memory that might
1950 look like a DTB header after a reboot if no actual DTB is appended
1951 to zImage. Do not leave this option active in a production kernel
1952 if you don't intend to always append a DTB. Proper passing of the
1953 location into r2 of a bootloader provided DTB is always preferable
1954 to this option.
1955
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001956config ARM_ATAG_DTB_COMPAT
1957 bool "Supplement the appended DTB with traditional ATAG information"
1958 depends on ARM_APPENDED_DTB
1959 help
1960 Some old bootloaders can't be updated to a DTB capable one, yet
1961 they provide ATAGs with memory configuration, the ramdisk address,
1962 the kernel cmdline string, etc. Such information is dynamically
1963 provided by the bootloader and can't always be stored in a static
1964 DTB. To allow a device tree enabled kernel to be used with such
1965 bootloaders, this option allows zImage to extract the information
1966 from the ATAG list and store it at run time into the appended DTB.
1967
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968config CMDLINE
1969 string "Default kernel command string"
1970 default ""
1971 help
1972 On some architectures (EBSA110 and CATS), there is currently no way
1973 for the boot loader to pass arguments to the kernel. For these
1974 architectures, you should supply some command-line options at build
1975 time by entering them here. As a minimum, you should specify the
1976 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1977
Victor Boivie4394c122011-05-04 17:07:55 +01001978choice
1979 prompt "Kernel command line type" if CMDLINE != ""
1980 default CMDLINE_FROM_BOOTLOADER
1981
1982config CMDLINE_FROM_BOOTLOADER
1983 bool "Use bootloader kernel arguments if available"
1984 help
1985 Uses the command-line options passed by the boot loader. If
1986 the boot loader doesn't provide any, the default kernel command
1987 string provided in CMDLINE will be used.
1988
1989config CMDLINE_EXTEND
1990 bool "Extend bootloader kernel arguments"
1991 help
1992 The command-line arguments provided by the boot loader will be
1993 appended to the default kernel command string.
1994
Alexander Holler92d20402010-02-16 19:04:53 +01001995config CMDLINE_FORCE
1996 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001997 help
1998 Always use the default kernel command string, even if the boot
1999 loader passes other arguments to the kernel.
2000 This is useful if you cannot or don't want to change the
2001 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002002endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002003
Linus Torvalds1da177e2005-04-16 15:20:36 -07002004config XIP_KERNEL
2005 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002006 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002007 help
2008 Execute-In-Place allows the kernel to run from non-volatile storage
2009 directly addressable by the CPU, such as NOR flash. This saves RAM
2010 space since the text section of the kernel is not loaded from flash
2011 to RAM. Read-write sections, such as the data section and stack,
2012 are still copied to RAM. The XIP kernel is not compressed since
2013 it has to run directly from flash, so it will take more space to
2014 store it. The flash address used to link the kernel object files,
2015 and for storing it, is configuration dependent. Therefore, if you
2016 say Y here, you must know the proper physical address where to
2017 store the kernel image depending on your own flash memory usage.
2018
2019 Also note that the make target becomes "make xipImage" rather than
2020 "make zImage" or "make Image". The final kernel binary to put in
2021 ROM memory will be arch/arm/boot/xipImage.
2022
2023 If unsure, say N.
2024
2025config XIP_PHYS_ADDR
2026 hex "XIP Kernel Physical Location"
2027 depends on XIP_KERNEL
2028 default "0x00080000"
2029 help
2030 This is the physical address in your flash memory the kernel will
2031 be linked for and stored to. This address is dependent on your
2032 own flash usage.
2033
Richard Purdiec587e4a2007-02-06 21:29:00 +01002034config KEXEC
2035 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002036 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002037 help
2038 kexec is a system call that implements the ability to shutdown your
2039 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002040 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002041 you can start any kernel with it, not just Linux.
2042
2043 It is an ongoing process to be certain the hardware in a machine
2044 is properly shutdown, so do not be surprised if this code does not
2045 initially work for you. It may help to enable device hotplugging
2046 support.
2047
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002048config ATAGS_PROC
2049 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002050 depends on KEXEC
2051 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002052 help
2053 Should the atags used to boot the kernel be exported in an "atags"
2054 file in procfs. Useful with kexec.
2055
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002056config CRASH_DUMP
2057 bool "Build kdump crash kernel (EXPERIMENTAL)"
2058 depends on EXPERIMENTAL
2059 help
2060 Generate crash dump after being started by kexec. This should
2061 be normally only set in special crash dump kernels which are
2062 loaded in the main kernel with kexec-tools into a specially
2063 reserved region and then later executed after a crash by
2064 kdump/kexec. The crash dump kernel must be compiled to a
2065 memory address not used by the main kernel
2066
2067 For more details see Documentation/kdump/kdump.txt
2068
Eric Miaoe69edc792010-07-05 15:56:50 +02002069config AUTO_ZRELADDR
2070 bool "Auto calculation of the decompressed kernel image address"
2071 depends on !ZBOOT_ROM && !ARCH_U300
2072 help
2073 ZRELADDR is the physical address where the decompressed kernel
2074 image will be placed. If AUTO_ZRELADDR is selected, the address
2075 will be determined at run-time by masking the current IP with
2076 0xf8000000. This assumes the zImage being placed in the first 128MB
2077 from start of memory.
2078
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079endmenu
2080
Russell Kingac9d7ef2008-08-18 17:26:00 +01002081menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082
Ben Dooks89c52ed2009-07-30 23:23:24 +01002083if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002084
2085source "drivers/cpufreq/Kconfig"
2086
Yong Shen64f102b2010-10-21 21:18:59 +08002087config CPU_FREQ_IMX
2088 tristate "CPUfreq driver for i.MX CPUs"
2089 depends on ARCH_MXC && CPU_FREQ
2090 help
2091 This enables the CPUfreq driver for i.MX CPUs.
2092
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093config CPU_FREQ_SA1100
2094 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095
2096config CPU_FREQ_SA1110
2097 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098
2099config CPU_FREQ_INTEGRATOR
2100 tristate "CPUfreq driver for ARM Integrator CPUs"
2101 depends on ARCH_INTEGRATOR && CPU_FREQ
2102 default y
2103 help
2104 This enables the CPUfreq driver for ARM Integrator CPUs.
2105
2106 For details, take a look at <file:Documentation/cpu-freq>.
2107
2108 If in doubt, say Y.
2109
Russell King9e2697f2007-12-14 13:30:14 +00002110config CPU_FREQ_PXA
2111 bool
2112 depends on CPU_FREQ && ARCH_PXA && PXA25x
2113 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002114 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002115 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2116
Ben Dooks9d56c022009-07-30 23:23:25 +01002117config CPU_FREQ_S3C
2118 bool
2119 help
2120 Internal configuration node for common cpufreq on Samsung SoC
2121
2122config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002123 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002124 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2125 select CPU_FREQ_S3C
2126 help
2127 This enables the CPUfreq driver for the Samsung S3C24XX family
2128 of CPUs.
2129
2130 For details, take a look at <file:Documentation/cpu-freq>.
2131
2132 If in doubt, say N.
2133
2134config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002135 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002136 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2137 help
2138 Compile in support for changing the PLL frequency from the
2139 S3C24XX series CPUfreq driver. The PLL takes time to settle
2140 after a frequency change, so by default it is not enabled.
2141
2142 This also means that the PLL tables for the selected CPU(s) will
2143 be built which may increase the size of the kernel image.
2144
2145config CPU_FREQ_S3C24XX_DEBUG
2146 bool "Debug CPUfreq Samsung driver core"
2147 depends on CPU_FREQ_S3C24XX
2148 help
2149 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2150
2151config CPU_FREQ_S3C24XX_IODEBUG
2152 bool "Debug CPUfreq Samsung driver IO timing"
2153 depends on CPU_FREQ_S3C24XX
2154 help
2155 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2156
Ben Dookse6d197a2009-07-30 23:23:42 +01002157config CPU_FREQ_S3C24XX_DEBUGFS
2158 bool "Export debugfs for CPUFreq"
2159 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2160 help
2161 Export status information via debugfs.
2162
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163endif
2164
Russell Kingac9d7ef2008-08-18 17:26:00 +01002165source "drivers/cpuidle/Kconfig"
2166
2167endmenu
2168
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169menu "Floating point emulation"
2170
2171comment "At least one emulation must be selected"
2172
2173config FPE_NWFPE
2174 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002175 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176 ---help---
2177 Say Y to include the NWFPE floating point emulator in the kernel.
2178 This is necessary to run most binaries. Linux does not currently
2179 support floating point hardware so you need to say Y here even if
2180 your machine has an FPA or floating point co-processor podule.
2181
2182 You may say N here if you are going to load the Acorn FPEmulator
2183 early in the bootup.
2184
2185config FPE_NWFPE_XP
2186 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002187 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188 help
2189 Say Y to include 80-bit support in the kernel floating-point
2190 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2191 Note that gcc does not generate 80-bit operations by default,
2192 so in most cases this option only enlarges the size of the
2193 floating point emulator without any good reason.
2194
2195 You almost surely want to say N here.
2196
2197config FPE_FASTFPE
2198 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002199 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002200 ---help---
2201 Say Y here to include the FAST floating point emulator in the kernel.
2202 This is an experimental much faster emulator which now also has full
2203 precision for the mantissa. It does not support any exceptions.
2204 It is very simple, and approximately 3-6 times faster than NWFPE.
2205
2206 It should be sufficient for most programs. It may be not suitable
2207 for scientific calculations, but you have to check this for yourself.
2208 If you do not feel you need a faster FP emulation you should better
2209 choose NWFPE.
2210
2211config VFP
2212 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002213 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002214 help
2215 Say Y to include VFP support code in the kernel. This is needed
2216 if your hardware includes a VFP unit.
2217
2218 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2219 release notes and additional status information.
2220
2221 Say N if your target does not have VFP hardware.
2222
Catalin Marinas25ebee02007-09-25 15:22:24 +01002223config VFPv3
2224 bool
2225 depends on VFP
2226 default y if CPU_V7
2227
Catalin Marinasb5872db2008-01-10 19:16:17 +01002228config NEON
2229 bool "Advanced SIMD (NEON) Extension support"
2230 depends on VFPv3 && CPU_V7
2231 help
2232 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2233 Extension.
2234
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235endmenu
2236
2237menu "Userspace binary formats"
2238
2239source "fs/Kconfig.binfmt"
2240
2241config ARTHUR
2242 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002243 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244 help
2245 Say Y here to include the kernel code necessary if you want to run
2246 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2247 experimental; if this sounds frightening, say N and sleep in peace.
2248 You can also say M here to compile this support as a module (which
2249 will be called arthur).
2250
2251endmenu
2252
2253menu "Power management options"
2254
Russell Kingeceab4a2005-11-15 11:31:41 +00002255source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002256
Johannes Bergf4cb5702007-12-08 02:14:00 +01002257config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002258 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002259 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2260 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002261 def_bool y
2262
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002263config ARM_CPU_SUSPEND
2264 def_bool PM_SLEEP
2265
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266endmenu
2267
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002268source "net/Kconfig"
2269
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002270source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271
2272source "fs/Kconfig"
2273
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274source "arch/arm/Kconfig.debug"
2275
2276source "security/Kconfig"
2277
2278source "crypto/Kconfig"
2279
2280source "lib/Kconfig"