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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
David Woodhousee17c6d52008-06-17 12:19:34 +01004 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00005 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02006 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King2778f622010-07-09 16:27:52 +01007 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -08008 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +00009 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000010 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Will Deaconfe166142010-04-30 11:37:51 +010011 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jason Wessel5cbad0e2008-02-20 13:33:40 -060012 select HAVE_ARCH_KGDB
Jon Medhurst856bc352011-06-14 13:09:39 +010013 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080014 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040015 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010016 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
17 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053018 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080019 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040020 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080021 select HAVE_KERNEL_GZIP
22 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010023 select HAVE_KERNEL_LZMA
Peter Zijlstrae360adb2010-10-14 14:01:34 +080024 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010025 select HAVE_PERF_EVENTS
26 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010027 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000028 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010029 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010030 select HAVE_GENERIC_HARDIRQS
31 select HAVE_SPARSE_IRQ
Thomas Gleixner25a56622011-03-24 12:02:11 +010032 select GENERIC_IRQ_SHOW
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053033 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020034 select GENERIC_PCI_IOMAP
Linus Torvalds1da177e2005-04-16 15:20:36 -070035 help
36 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000037 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000039 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 Europe. There is an ARM Linux project with a web page at
41 <http://www.arm.linux.org.uk/>.
42
Russell King74facff2011-06-02 11:16:22 +010043config ARM_HAS_SG_CHAIN
44 bool
45
Russell King1a189b92008-04-13 21:41:55 +010046config HAVE_PWM
47 bool
48
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010049config MIGHT_HAVE_PCI
50 bool
51
Ralf Baechle75e71532007-02-09 17:08:58 +000052config SYS_SUPPORTS_APM_EMULATION
53 bool
54
Russell King112f38a42010-12-15 19:23:07 +000055config HAVE_SCHED_CLOCK
56 bool
57
David Brownell0a938b92007-03-05 00:30:18 -080058config GENERIC_GPIO
59 bool
David Brownell0a938b92007-03-05 00:30:18 -080060
John Stultz5cfc8ee2010-03-24 00:22:36 +000061config ARCH_USES_GETTIMEOFFSET
62 bool
63 default n
Kevin Hilman746140c2006-09-22 00:16:30 +010064
Kevin Hilman0567a0c2007-03-13 20:29:24 +010065config GENERIC_CLOCKEVENTS
66 bool
Kevin Hilman0567a0c2007-03-13 20:29:24 +010067
Catalin Marinasa8655e82008-02-04 17:30:57 +010068config GENERIC_CLOCKEVENTS_BROADCAST
69 bool
70 depends on GENERIC_CLOCKEVENTS
Russell King5388a6b2010-07-26 13:19:43 +010071 default y if SMP
Catalin Marinasa8655e82008-02-04 17:30:57 +010072
Rob Herringbf9dd362011-03-04 23:51:59 +010073config KTIME_SCALAR
74 bool
75 default y
76
Linus Walleijbc581772009-09-15 17:30:37 +010077config HAVE_TCM
78 bool
79 select GENERIC_ALLOCATOR
80
Russell Kinge119bff2010-01-10 17:23:29 +000081config HAVE_PROC_CPU
82 bool
83
Al Viro5ea81762007-02-11 15:41:31 +000084config NO_IOPORT
85 bool
Al Viro5ea81762007-02-11 15:41:31 +000086
Linus Torvalds1da177e2005-04-16 15:20:36 -070087config EISA
88 bool
89 ---help---
90 The Extended Industry Standard Architecture (EISA) bus was
91 developed as an open alternative to the IBM MicroChannel bus.
92
93 The EISA bus provided some of the features of the IBM MicroChannel
94 bus while maintaining backward compatibility with cards made for
95 the older ISA bus. The EISA bus saw limited use between 1988 and
96 1995 when it was made obsolete by the PCI bus.
97
98 Say Y here if you are building a kernel for an EISA-based machine.
99
100 Otherwise, say N.
101
102config SBUS
103 bool
104
105config MCA
106 bool
107 help
108 MicroChannel Architecture is found in some IBM PS/2 machines and
109 laptops. It is a bus system similar to PCI or ISA. See
110 <file:Documentation/mca.txt> (and especially the web page given
111 there) before attempting to build an MCA bus kernel.
112
Russell Kingf16fb1e2007-04-28 09:59:37 +0100113config STACKTRACE_SUPPORT
114 bool
115 default y
116
Nicolas Pitref76e9152008-04-24 01:31:46 -0400117config HAVE_LATENCYTOP_SUPPORT
118 bool
119 depends on !SMP
120 default y
121
Russell Kingf16fb1e2007-04-28 09:59:37 +0100122config LOCKDEP_SUPPORT
123 bool
124 default y
125
Russell King7ad1bcb2006-08-27 12:07:02 +0100126config TRACE_IRQFLAGS_SUPPORT
127 bool
128 default y
129
Thomas Gleixner4a2581a2006-07-01 22:30:09 +0100130config HARDIRQS_SW_RESEND
131 bool
132 default y
133
134config GENERIC_IRQ_PROBE
135 bool
136 default y
137
Nick Piggin95c354f2008-01-30 13:31:20 +0100138config GENERIC_LOCKBREAK
139 bool
140 default y
141 depends on SMP && PREEMPT
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143config RWSEM_GENERIC_SPINLOCK
144 bool
145 default y
146
147config RWSEM_XCHGADD_ALGORITHM
148 bool
149
David Howellsf0d1b0b2006-12-08 02:37:49 -0800150config ARCH_HAS_ILOG2_U32
151 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800152
153config ARCH_HAS_ILOG2_U64
154 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800155
Ben Dooks89c52ed2009-07-30 23:23:24 +0100156config ARCH_HAS_CPUFREQ
157 bool
158 help
159 Internal node to signify that the ARCH has CPUFREQ support
160 and that the relevant menu configurations are displayed for
161 it.
162
Kevin Hilmanc7b0aff2010-10-01 22:13:47 +0100163config ARCH_HAS_CPU_IDLE_WAIT
164 def_bool y
165
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800166config GENERIC_HWEIGHT
167 bool
168 default y
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config GENERIC_CALIBRATE_DELAY
171 bool
172 default y
173
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100174config ARCH_MAY_HAVE_PC_FDC
175 bool
176
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800177config ZONE_DMA
178 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800179
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800180config NEED_DMA_MAP_STATE
181 def_bool y
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183config GENERIC_ISA_DMA
184 bool
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config FIQ
187 bool
188
Al Viro034d2f52005-12-19 16:27:59 -0500189config ARCH_MTD_XIP
190 bool
191
Hyok S. Choic760fc12006-03-27 15:18:50 +0100192config VECTORS_BASE
193 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900194 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100195 default DRAM_BASE if REMAP_VECTORS_TO_RAM
196 default 0x00000000
197 help
198 The base address of exception vectors.
199
Russell Kingdc21af92011-01-04 19:09:43 +0000200config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100201 bool "Patch physical to virtual translations at runtime" if EMBEDDED
202 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100203 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000204 depends on !ARCH_REALVIEW || !SPARSEMEM
205 help
Russell King111e9a52011-05-12 10:02:42 +0100206 Patch phys-to-virt and virt-to-phys translation functions at
207 boot and module load time according to the position of the
208 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000209
Russell King111e9a52011-05-12 10:02:42 +0100210 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100211 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000212
Russell Kingc1beced2011-08-10 10:23:45 +0100213 Only disable this option if you know that you do not require
214 this feature (eg, building a kernel for a single machine) and
215 you need to shrink the kernel to the minimal size.
216
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400217config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400218 bool
Russell King111e9a52011-05-12 10:02:42 +0100219 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400220 Select this when mach/memory.h is required to provide special
221 definitions for this platform. The need for mach/memory.h should
222 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400223
224config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100225 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400226 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100227 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400228 help
229 Please provide the physical address corresponding to the
230 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000231
Simon Glass87e040b2011-08-16 23:44:26 +0100232config GENERIC_BUG
233 def_bool y
234 depends on BUG
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236source "init/Kconfig"
237
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700238source "kernel/Kconfig.freezer"
239
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240menu "System Type"
241
Hyok S. Choi3c427972009-07-24 12:35:00 +0100242config MMU
243 bool "MMU-based Paged Memory Management Support"
244 default y
245 help
246 Select if you want MMU-based virtualised addressing space
247 support by paged memory management. If unsure, say 'Y'.
248
Russell Kingccf50e22010-03-15 19:03:06 +0000249#
250# The "ARM system type" choice list is ordered alphabetically by option
251# text. Please add new entries in the option alphabetic order.
252#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253choice
254 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000255 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100257config ARCH_INTEGRATOR
258 bool "ARM Ltd. Integrator family"
259 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100260 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100261 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900262 select HAVE_MACH_CLKDEV
Linus Walleij9904f792011-12-09 10:29:23 +0100263 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000264 select ICST
Russell King13edd862010-01-15 21:49:23 +0000265 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000266 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000267 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400268 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269 help
270 Support for ARM's Integrator platform.
271
272config ARCH_REALVIEW
273 bool "ARM Ltd. RealView family"
274 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100275 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900276 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000277 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100278 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100279 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000280 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000281 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000282 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100283 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400284 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100285 help
286 This enables support for ARM Ltd RealView boards.
287
288config ARCH_VERSATILE
289 bool "ARM Ltd. Versatile family"
290 select ARM_AMBA
291 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100292 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900293 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000294 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100295 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100296 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000297 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000298 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000299 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000300 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301 help
302 This enables support for ARM Ltd Versatile board.
303
Russell Kingceade892010-02-11 21:44:53 +0000304config ARCH_VEXPRESS
305 bool "ARM Ltd. Versatile Express family"
306 select ARCH_WANT_OPTIONAL_GPIOLIB
307 select ARM_AMBA
308 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100309 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900310 select HAVE_MACH_CLKDEV
Russell Kingceade892010-02-11 21:44:53 +0000311 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000312 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100313 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000314 select ICST
315 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000316 select PLAT_VERSATILE_CLCD
Russell Kingceade892010-02-11 21:44:53 +0000317 help
318 This enables support for the ARM Ltd Versatile Express boards.
319
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100320config ARCH_AT91
321 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100322 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700323 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100324 select CLKDEV_LOOKUP
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100325 help
Andrew Victor2b3b3512008-01-24 15:10:39 +0100326 This enables support for systems based on the Atmel AT91RM9200,
327 AT91SAM9 and AT91CAP9 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328
Russell Kingccf50e22010-03-15 19:03:06 +0000329config ARCH_BCMRING
330 bool "Broadcom BCMRING"
331 depends on MMU
332 select CPU_V6
333 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100334 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100335 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000336 select GENERIC_CLOCKEVENTS
337 select ARCH_WANT_OPTIONAL_GPIOLIB
338 help
339 Support for Broadcom's BCMRing platform.
340
Rob Herring220e6cf2011-06-07 10:02:55 -0500341config ARCH_HIGHBANK
342 bool "Calxeda Highbank-based"
343 select ARCH_WANT_OPTIONAL_GPIOLIB
344 select ARM_AMBA
345 select ARM_GIC
346 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000347 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500348 select CLKDEV_LOOKUP
349 select CPU_V7
350 select GENERIC_CLOCKEVENTS
351 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000352 select HAVE_SMP
Rob Herring220e6cf2011-06-07 10:02:55 -0500353 select USE_OF
354 help
355 Support for the Calxeda Highbank SoC based boards.
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357config ARCH_CLPS711X
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358 bool "Cirrus Logic CLPS711x/EP721x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000359 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000360 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400361 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000362 help
363 Support for Cirrus Logic 711x/721x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300365config ARCH_CNS3XXX
366 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200367 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300368 select GENERIC_CLOCKEVENTS
369 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000370 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100371 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400372 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300373 help
374 Support for Cavium Networks CNS3XXX platform.
375
Russell King788c9702009-04-26 14:21:59 +0100376config ARCH_GEMINI
377 bool "Cortina Systems Gemini"
378 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100379 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000380 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100381 help
382 Support for the Cortina Systems Gemini family SoCs
383
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200384config ARCH_PRIMA2
385 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
386 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200387 select NO_IOPORT
388 select GENERIC_CLOCKEVENTS
389 select CLKDEV_LOOKUP
390 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000391 select MIGHT_HAVE_CACHE_L2X0
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200392 select USE_OF
393 select ZONE_DMA
394 help
395 Support for CSR SiRFSoC ARM Cortex A9 Platform
396
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397config ARCH_EBSA110
398 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000399 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100400 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000401 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000402 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400403 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 help
405 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000406 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 Ethernet interface, two PCMCIA sockets, two serial ports and a
408 parallel port.
409
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000410config ARCH_EP93XX
411 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000412 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413 select ARM_AMBA
414 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100415 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700416 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100417 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000418 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100419 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000420 help
421 This enables support for the Cirrus EP93xx series of CPUs.
422
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423config ARCH_FOOTBRIDGE
424 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000425 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000427 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200428 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400429 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000430 help
431 Support for systems based on the DC21285 companion chip
432 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433
Russell King788c9702009-04-26 14:21:59 +0100434config ARCH_MXC
435 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100436 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100437 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100438 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100439 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800440 select GENERIC_IRQ_CHIP
Jan Weitzelc124bef2011-03-17 13:44:30 +0100441 select HAVE_SCHED_CLOCK
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200442 select MULTI_IRQ_HANDLER
Russell King788c9702009-04-26 14:21:59 +0100443 help
444 Support for Freescale MXC/iMX-based family of processors
445
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800446config ARCH_MXS
447 bool "Freescale MXS-based"
448 select GENERIC_CLOCKEVENTS
449 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100450 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100451 select CLKSRC_MMIO
Shawn Guo6abda3e2011-12-20 16:12:34 +0800452 select HAVE_CLK_PREPARE
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800453 help
454 Support for Freescale MXS-based family of processors
455
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100456config ARCH_NETX
457 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100458 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100460 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100461 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000462 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100463 This enables support for systems based on the Hilscher NetX Soc
464
465config ARCH_H720X
466 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000467 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100468 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000469 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470 help
471 This enables support for systems based on the Hynix HMS720x
472
Russell King3b938be2007-05-12 11:25:44 +0100473config ARCH_IOP13XX
474 bool "IOP13xx-based"
475 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100477 select PLAT_IOP
478 select PCI
479 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100480 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400481 select NEED_MACH_MEMORY_H
Russell King3b938be2007-05-12 11:25:44 +0100482 help
483 Support for Intel's IOP13XX (XScale) family of processors.
484
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100485config ARCH_IOP32X
486 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100487 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000488 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100489 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100490 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100491 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000492 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100493 Support for Intel's 80219 and IOP32X (XScale) family of
494 processors.
495
496config ARCH_IOP33X
497 bool "IOP33x-based"
498 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000499 select CPU_XSCALE
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100500 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100501 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100502 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100503 help
504 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505
Russell King3b938be2007-05-12 11:25:44 +0100506config ARCH_IXP23XX
507 bool "IXP23XX-based"
Dan Williams588ef762007-02-13 17:12:04 +0100508 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000509 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100510 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000511 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400512 select NEED_MACH_MEMORY_H
Dan Williams285f5fa2006-12-07 02:59:39 +0100513 help
Russell King3b938be2007-05-12 11:25:44 +0100514 Support for Intel's IXP23xx (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515
516config ARCH_IXP2000
517 bool "IXP2400/2800-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100518 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000519 select CPU_XSCALE
Russell Kingf7e68bb2005-05-05 14:49:01 +0100520 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000521 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400522 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000523 help
524 Support for Intel's IXP2400/2800 (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525
Russell King3b938be2007-05-12 11:25:44 +0100526config ARCH_IXP4XX
527 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100528 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100529 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000530 select CPU_XSCALE
Milan Svoboda8858e9a2007-05-14 07:50:42 +0100531 select GENERIC_GPIO
Russell King3b938be2007-05-12 11:25:44 +0100532 select GENERIC_CLOCKEVENTS
Russell King5b0d4952010-12-15 21:23:13 +0000533 select HAVE_SCHED_CLOCK
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100534 select MIGHT_HAVE_PCI
Russell King485bdde2008-10-17 14:00:43 +0100535 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100536 help
Russell King3b938be2007-05-12 11:25:44 +0100537 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100538
Saeed Bisharaedabd382009-08-06 15:12:43 +0300539config ARCH_DOVE
540 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300541 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300542 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300543 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300544 select GENERIC_CLOCKEVENTS
545 select PLAT_ORION
546 help
547 Support for the Marvell Dove SoC 88AP510
548
Saeed Bishara651c74c2008-06-22 22:45:06 +0200549config ARCH_KIRKWOOD
550 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000551 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200552 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700553 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200554 select GENERIC_CLOCKEVENTS
555 select PLAT_ORION
556 help
557 Support for the following Marvell Kirkwood series SoCs:
558 88F6180, 88F6192 and 88F6281.
559
Kevin Wells40805942010-07-27 08:49:04 -0700560config ARCH_LPC32XX
561 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100562 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700563 select CPU_ARM926T
564 select ARCH_REQUIRE_GPIOLIB
565 select HAVE_IDE
566 select ARM_AMBA
567 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100568 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700569 select GENERIC_CLOCKEVENTS
570 help
571 Support for the NXP LPC32XX family of processors
572
Russell King788c9702009-04-26 14:21:59 +0100573config ARCH_MV78XX0
574 bool "Marvell MV78xx0"
575 select CPU_FEROCEON
576 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700577 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100578 select GENERIC_CLOCKEVENTS
579 select PLAT_ORION
580 help
581 Support for the following Marvell MV78xx0 series SoCs:
582 MV781x0, MV782x0.
583
584config ARCH_ORION5X
585 bool "Marvell Orion"
586 depends on MMU
587 select CPU_FEROCEON
588 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700589 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100590 select GENERIC_CLOCKEVENTS
591 select PLAT_ORION
592 help
593 Support for the following Marvell Orion 5x series SoCs:
594 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
595 Orion-2 (5281), Orion-1-90 (6183).
596
597config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500598 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100599 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100600 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100601 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100602 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800603 select GPIO_PXA
Russell King28bb7bc2010-12-15 21:46:48 +0000604 select HAVE_SCHED_CLOCK
Russell King788c9702009-04-26 14:21:59 +0100605 select TICK_ONESHOT
606 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400607 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800608 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100609 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500610 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100611
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100612config ARCH_KS8695
613 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000614 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100615 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000616 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400617 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100618 help
619 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
620 System-on-Chip devices.
621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_W90X900
623 bool "Nuvoton W90X900 CPU"
624 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100625 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100626 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100627 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100628 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200629 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100630 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
631 At present, the w90x900 has been renamed nuc900, regarding
632 the ARM series product line, you can login the following
633 link address to know more.
634
635 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
636 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400637
Erik Gillingc5f80062010-01-21 16:53:02 -0800638config ARCH_TEGRA
639 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000640 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100641 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800642 select GENERIC_CLOCKEVENTS
643 select GENERIC_GPIO
644 select HAVE_CLK
Russell Kinge3f4c0a2010-12-15 21:49:42 +0000645 select HAVE_SCHED_CLOCK
Dave Martin3b556582011-12-07 15:38:04 +0000646 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000647 select MIGHT_HAVE_CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700648 select ARCH_HAS_CPUFREQ
Erik Gillingc5f80062010-01-21 16:53:02 -0800649 help
650 This enables support for NVIDIA Tegra based systems (Tegra APX,
651 Tegra 6xx and Tegra 2 series).
652
Jamie Ilesaf756552011-07-25 17:36:42 +0100653config ARCH_PICOXCELL
654 bool "Picochip picoXcell"
655 select ARCH_REQUIRE_GPIOLIB
656 select ARM_PATCH_PHYS_VIRT
657 select ARM_VIC
658 select CPU_V6K
659 select DW_APB_TIMER
660 select GENERIC_CLOCKEVENTS
661 select GENERIC_GPIO
662 select HAVE_SCHED_CLOCK
663 select HAVE_TCM
664 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000665 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100666 select USE_OF
667 help
668 This enables support for systems based on the Picochip picoXcell
669 family of Femtocell devices. The picoxcell support requires device tree
670 for all boards.
671
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100672config ARCH_PNX4008
673 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000674 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100675 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100677 help
678 This enables support for Philips PNX4008 mobile platform.
679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700681 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100682 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500683 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100684 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100685 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100686 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700687 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100688 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800689 select GPIO_PXA
Russell King7ce83012010-12-15 21:48:15 +0000690 select HAVE_SCHED_CLOCK
Russell Kinga88264c2007-11-12 22:45:16 +0000691 select TICK_ONESHOT
Eric Miaobd5ce432009-01-20 12:06:01 +0800692 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800693 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800694 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800695 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200696 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200697 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000698 help
eric miao2c8086a2007-09-11 19:13:17 -0700699 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700
Russell King788c9702009-04-26 14:21:59 +0100701config ARCH_MSM
702 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500703 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800704 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700705 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800706 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800707 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800708 Support for Qualcomm MSM/QSD based systems. This runs on the
709 apps processor of the MSM/QSD and depends on a shared memory
710 interface to the modem processor which runs the baseband
711 stack and controls some vital subsystems
712 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800713
Magnus Dammc793c1b2010-02-05 11:14:49 +0000714config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900715 bool "Renesas SH-Mobile / R-Mobile"
716 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900717 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900718 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000719 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900720 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000721 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900722 select NO_IOPORT
723 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000724 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200725 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400726 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000727 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900728 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000729
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730config ARCH_RPC
731 bool "RiscPC"
732 select ARCH_ACORN
733 select FIQ
734 select TIMER_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100735 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100736 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000737 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000738 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100739 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000740 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200741 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400742 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 help
744 On the Acorn Risc-PC, Linux can support the internal IDE disk and
745 CD-ROM interface, serial and parallel port, and the floppy drive.
746
747config ARCH_SA1100
748 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100749 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000750 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100751 select ISA
Russell King05944d72006-11-30 20:43:51 +0000752 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500753 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100754 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000755 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100756 select GENERIC_CLOCKEVENTS
Russell King8bd92662012-01-19 11:48:23 +0000757 select HAVE_CLK
Russell King5094b922010-12-15 21:49:06 +0000758 select HAVE_SCHED_CLOCK
Russell King3e238be2008-04-14 23:03:10 +0100759 select TICK_ONESHOT
Michael Buesch7444a722008-07-25 01:46:11 -0700760 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200761 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400762 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000763 help
764 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765
766config ARCH_S3C2410
Ben Dooks63b1f512010-04-30 16:32:26 +0900767 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
David Brownell0a938b92007-03-05 00:30:18 -0800768 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100769 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700770 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900771 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000772 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900773 select HAVE_S3C2410_I2C if I2C
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774 help
775 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
776 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000777 the Samsung SMDK2410 development board (and derivatives).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778
Ben Dooks63b1f512010-04-30 16:32:26 +0900779 Note, the S3C2416 and the S3C2450 are so close that they even share
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300780 the same SoC ID code. This means that there is no separate machine
Ben Dooks63b1f512010-04-30 16:32:26 +0900781 directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
782
Ben Dooksa08ab632008-10-21 14:06:39 +0100783config ARCH_S3C64XX
784 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000785 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900786 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900787 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100788 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900789 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900790 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900791 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000792 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100793 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900794 select ARCH_REQUIRE_GPIOLIB
795 select SAMSUNG_CLKSRC
796 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900797 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900798 select S3C_DEV_NAND
799 select USB_ARCH_HAS_OHCI
800 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900802 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100803 help
804 Samsung S3C64XX series based systems
805
Kukjin Kim49b7a492010-09-07 15:47:18 +0900806config ARCH_S5P64X0
807 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900808 select CPU_V6
809 select GENERIC_GPIO
810 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900811 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900812 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900813 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900814 select GENERIC_CLOCKEVENTS
815 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900816 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900817 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900818 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900819 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
820 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900821
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200822config ARCH_S5PC100
823 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900824 select GENERIC_GPIO
825 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900826 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900827 select CPU_V7
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100828 select ARM_L1_CACHE_SHIFT_6
Ben Dooks925c68c2010-05-20 20:48:28 +0900829 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900830 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900831 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900832 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900833 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200834 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900835
Kukjin Kim170f4e42010-02-24 16:40:44 +0900836config ARCH_S5PV210
837 bool "Samsung S5PV210/S5PC110"
838 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900839 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900840 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900841 select GENERIC_GPIO
842 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900843 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900844 select CLKSRC_MMIO
Kukjin Kim170f4e42010-02-24 16:40:44 +0900845 select ARM_L1_CACHE_SHIFT_6
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900846 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900847 select GENERIC_CLOCKEVENTS
848 select HAVE_SCHED_CLOCK
Kukjin Kim20676c12010-11-13 16:08:32 +0900849 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900850 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900851 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400852 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900853 help
854 Samsung S5PV210/S5PC110 series based systems
855
Kukjin Kim83014572011-11-06 13:54:56 +0900856config ARCH_EXYNOS
857 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900858 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900859 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900860 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900861 select GENERIC_GPIO
862 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900863 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900864 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900865 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900866 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900867 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900868 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400869 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900870 help
Kukjin Kim83014572011-11-06 13:54:56 +0900871 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873config ARCH_SHARK
874 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000875 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100876 select ISA
877 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100878 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100879 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000880 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400881 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000882 help
883 Support for the StrongARM based Digital DNARD machine, also known
884 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Linus Walleijd98aac72009-04-27 10:21:46 +0100886config ARCH_U300
887 bool "ST-Ericsson U300 Series"
888 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100889 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select CPU_ARM926T
Russell King5c21b7c2010-12-15 21:50:14 +0000891 select HAVE_SCHED_CLOCK
Linus Walleijbc581772009-09-15 17:30:37 +0100892 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200894 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100896 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100897 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900898 select HAVE_MACH_CLKDEV
Linus Walleijd98aac72009-04-27 10:21:46 +0100899 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100900 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100901 help
902 Support for ST-Ericsson U300 series mobile platforms.
903
Russell Kingccf50e22010-03-15 19:03:06 +0000904config ARCH_U8500
905 bool "ST-Ericsson U8500 Series"
906 select CPU_V7
907 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000908 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100909 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100910 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100911 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000912 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000913 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000914 help
915 Support for ST-Ericsson's Ux500 architecture
916
917config ARCH_NOMADIK
918 bool "STMicroelectronics Nomadik"
919 select ARM_AMBA
920 select ARM_VIC
921 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100922 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000923 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000924 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000925 select ARCH_REQUIRE_GPIOLIB
926 help
927 Support for the Nomadik platform by ST-Ericsson
928
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100929config ARCH_DAVINCI
930 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100931 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700932 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100933 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700934 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100935 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700936 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100937 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530938 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100939 help
940 Support for TI's DaVinci platform.
941
Russell King3b938be2007-05-12 11:25:44 +0100942config ARCH_OMAP
943 bool "TI OMAP"
David Brownell9483a572008-07-23 21:26:48 -0700944 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700945 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100946 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700947 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700948 select GENERIC_CLOCKEVENTS
Russell Kingdc548fb2010-12-15 21:53:51 +0000949 select HAVE_SCHED_CLOCK
Sriram9af915d2010-01-29 14:20:05 -0800950 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100951 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200952 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100953
viresh kumarcee37e52010-04-01 12:31:05 +0100954config PLAT_SPEAR
955 bool "ST SPEAr"
956 select ARM_AMBA
957 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100958 select CLKDEV_LOOKUP
Russell Kingd6e15d72011-05-08 17:10:14 +0100959 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100960 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100961 select HAVE_CLK
962 help
963 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
964
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100965config ARCH_VT8500
966 bool "VIA/WonderMedia 85xx"
967 select CPU_ARM926T
968 select GENERIC_GPIO
969 select ARCH_HAS_CPUFREQ
970 select GENERIC_CLOCKEVENTS
971 select ARCH_REQUIRE_GPIOLIB
972 select HAVE_PWM
973 help
974 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800975
John Linnb85a3ef2011-06-20 11:47:27 -0600976config ARCH_ZYNQ
977 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800978 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800979 select GENERIC_CLOCKEVENTS
980 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600981 select ARM_GIC
982 select ARM_AMBA
983 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000984 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800985 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800986 help
John Linnb85a3ef2011-06-20 11:47:27 -0600987 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988endchoice
989
Russell Kingccf50e22010-03-15 19:03:06 +0000990#
991# This is sorted alphabetically by mach-* pathname. However, plat-*
992# Kconfigs may be included either alphabetically (according to the
993# plat- suffix) or along side the corresponding mach-* source.
994#
Russell King95b8f202010-01-14 11:43:54 +0000995source "arch/arm/mach-at91/Kconfig"
996
997source "arch/arm/mach-bcmring/Kconfig"
998
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999source "arch/arm/mach-clps711x/Kconfig"
1000
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001001source "arch/arm/mach-cns3xxx/Kconfig"
1002
Russell King95b8f202010-01-14 11:43:54 +00001003source "arch/arm/mach-davinci/Kconfig"
1004
1005source "arch/arm/mach-dove/Kconfig"
1006
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001007source "arch/arm/mach-ep93xx/Kconfig"
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009source "arch/arm/mach-footbridge/Kconfig"
1010
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001011source "arch/arm/mach-gemini/Kconfig"
1012
Russell King95b8f202010-01-14 11:43:54 +00001013source "arch/arm/mach-h720x/Kconfig"
1014
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015source "arch/arm/mach-integrator/Kconfig"
1016
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001017source "arch/arm/mach-iop32x/Kconfig"
1018
1019source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020
Dan Williams285f5fa2006-12-07 02:59:39 +01001021source "arch/arm/mach-iop13xx/Kconfig"
1022
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023source "arch/arm/mach-ixp4xx/Kconfig"
1024
1025source "arch/arm/mach-ixp2000/Kconfig"
1026
Lennert Buytenhekc4713072006-03-28 21:18:54 +01001027source "arch/arm/mach-ixp23xx/Kconfig"
1028
Russell King95b8f202010-01-14 11:43:54 +00001029source "arch/arm/mach-kirkwood/Kconfig"
1030
1031source "arch/arm/mach-ks8695/Kconfig"
1032
Kevin Wells40805942010-07-27 08:49:04 -07001033source "arch/arm/mach-lpc32xx/Kconfig"
1034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-msm/Kconfig"
1036
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001037source "arch/arm/mach-mv78xx0/Kconfig"
1038
Russell King95b8f202010-01-14 11:43:54 +00001039source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001041source "arch/arm/mach-mxs/Kconfig"
1042
Russell King95b8f202010-01-14 11:43:54 +00001043source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001044
Russell King95b8f202010-01-14 11:43:54 +00001045source "arch/arm/mach-nomadik/Kconfig"
1046source "arch/arm/plat-nomadik/Kconfig"
1047
Tony Lindgrend48af152005-07-10 19:58:17 +01001048source "arch/arm/plat-omap/Kconfig"
1049
1050source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051
Tony Lindgren1dbae812005-11-10 14:26:51 +00001052source "arch/arm/mach-omap2/Kconfig"
1053
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001054source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001055
Russell King95b8f202010-01-14 11:43:54 +00001056source "arch/arm/mach-pxa/Kconfig"
1057source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Russell King95b8f202010-01-14 11:43:54 +00001059source "arch/arm/mach-mmp/Kconfig"
1060
1061source "arch/arm/mach-realview/Kconfig"
1062
1063source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001064
Ben Dookscf383672009-11-10 00:14:58 +00001065source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001066source "arch/arm/plat-s3c24xx/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001067source "arch/arm/plat-s5p/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001068
viresh kumarcee37e52010-04-01 12:31:05 +01001069source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001070
1071if ARCH_S3C2410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072source "arch/arm/mach-s3c2410/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001073source "arch/arm/mach-s3c2412/Kconfig"
Yauhen Kharuzhyf1290a42010-04-28 18:09:01 +09001074source "arch/arm/mach-s3c2416/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001075source "arch/arm/mach-s3c2440/Kconfig"
Ben Dookse4d06e32007-02-16 12:12:31 +01001076source "arch/arm/mach-s3c2443/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001077endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Ben Dooksa08ab632008-10-21 14:06:39 +01001079if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001080source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001081endif
1082
Kukjin Kim49b7a492010-09-07 15:47:18 +09001083source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001084
Byungho Min5a7652f2009-06-23 21:39:42 +09001085source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001086
Kukjin Kim170f4e42010-02-24 16:40:44 +09001087source "arch/arm/mach-s5pv210/Kconfig"
1088
Kukjin Kim83014572011-11-06 13:54:56 +09001089source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001090
Russell King882d01f2010-03-02 23:40:15 +00001091source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092
Erik Gillingc5f80062010-01-21 16:53:02 -08001093source "arch/arm/mach-tegra/Kconfig"
1094
Russell King95b8f202010-01-14 11:43:54 +00001095source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096
Russell King95b8f202010-01-14 11:43:54 +00001097source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098
1099source "arch/arm/mach-versatile/Kconfig"
1100
Russell Kingceade892010-02-11 21:44:53 +00001101source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001102source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001103
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001104source "arch/arm/mach-vt8500/Kconfig"
1105
wanzongshun7ec80dd2008-12-03 03:55:38 +01001106source "arch/arm/mach-w90x900/Kconfig"
1107
Linus Torvalds1da177e2005-04-16 15:20:36 -07001108# Definitions to make life easier
1109config ARCH_ACORN
1110 bool
1111
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001112config PLAT_IOP
1113 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001114 select GENERIC_CLOCKEVENTS
Russell King08f26b12010-12-15 21:52:10 +00001115 select HAVE_SCHED_CLOCK
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001116
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001117config PLAT_ORION
1118 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001119 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001120 select GENERIC_IRQ_CHIP
Russell Kingf06a1622010-12-15 21:55:06 +00001121 select HAVE_SCHED_CLOCK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001122
Eric Miaobd5ce432009-01-20 12:06:01 +08001123config PLAT_PXA
1124 bool
1125
Russell Kingf4b8b312010-01-14 12:48:06 +00001126config PLAT_VERSATILE
1127 bool
1128
Russell Kinge3887712010-01-14 13:30:16 +00001129config ARM_TIMER_SP804
1130 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001131 select CLKSRC_MMIO
Russell Kinge3887712010-01-14 13:30:16 +00001132
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133source arch/arm/mm/Kconfig
1134
Russell King958cab02011-12-11 10:04:00 +00001135config ARM_NR_BANKS
1136 int
1137 default 16 if ARCH_EP93XX
1138 default 8
1139
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001140config IWMMXT
1141 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001142 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1143 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001144 help
1145 Enable support for iWMMXt context switching at run time if
1146 running on a CPU that supports it.
1147
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148config XSCALE_PMU
1149 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001150 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 default y
1152
Jamie Iles0f4f0672010-02-02 20:23:15 +01001153config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001154 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001155 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001156 default y
1157 bool
1158
eric miao52108642010-12-13 09:42:34 +01001159config MULTI_IRQ_HANDLER
1160 bool
1161 help
1162 Allow each machine to specify it's own IRQ handler at run time.
1163
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001164if !MMU
1165source "arch/arm/Kconfig-nommu"
1166endif
1167
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001168config ARM_ERRATA_411920
1169 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001170 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001171 help
1172 Invalidation of the Instruction Cache operation can
1173 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1174 It does not affect the MPCore. This option enables the ARM Ltd.
1175 recommended workaround.
1176
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001177config ARM_ERRATA_430973
1178 bool "ARM errata: Stale prediction on replaced interworking branch"
1179 depends on CPU_V7
1180 help
1181 This option enables the workaround for the 430973 Cortex-A8
1182 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1183 interworking branch is replaced with another code sequence at the
1184 same virtual address, whether due to self-modifying code or virtual
1185 to physical address re-mapping, Cortex-A8 does not recover from the
1186 stale interworking branch prediction. This results in Cortex-A8
1187 executing the new code sequence in the incorrect ARM or Thumb state.
1188 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1189 and also flushes the branch target cache at every context switch.
1190 Note that setting specific bits in the ACTLR register may not be
1191 available in non-secure mode.
1192
Catalin Marinas855c5512009-04-30 17:06:15 +01001193config ARM_ERRATA_458693
1194 bool "ARM errata: Processor deadlock when a false hazard is created"
1195 depends on CPU_V7
1196 help
1197 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1198 erratum. For very specific sequences of memory operations, it is
1199 possible for a hazard condition intended for a cache line to instead
1200 be incorrectly associated with a different cache line. This false
1201 hazard might then cause a processor deadlock. The workaround enables
1202 the L1 caching of the NEON accesses and disables the PLD instruction
1203 in the ACTLR register. Note that setting specific bits in the ACTLR
1204 register may not be available in non-secure mode.
1205
Catalin Marinas0516e462009-04-30 17:06:20 +01001206config ARM_ERRATA_460075
1207 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1208 depends on CPU_V7
1209 help
1210 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1211 erratum. Any asynchronous access to the L2 cache may encounter a
1212 situation in which recent store transactions to the L2 cache are lost
1213 and overwritten with stale memory contents from external memory. The
1214 workaround disables the write-allocate mode for the L2 cache via the
1215 ACTLR register. Note that setting specific bits in the ACTLR register
1216 may not be available in non-secure mode.
1217
Will Deacon9f050272010-09-14 09:51:43 +01001218config ARM_ERRATA_742230
1219 bool "ARM errata: DMB operation may be faulty"
1220 depends on CPU_V7 && SMP
1221 help
1222 This option enables the workaround for the 742230 Cortex-A9
1223 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1224 between two write operations may not ensure the correct visibility
1225 ordering of the two writes. This workaround sets a specific bit in
1226 the diagnostic register of the Cortex-A9 which causes the DMB
1227 instruction to behave as a DSB, ensuring the correct behaviour of
1228 the two writes.
1229
Will Deacona672e992010-09-14 09:53:02 +01001230config ARM_ERRATA_742231
1231 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1232 depends on CPU_V7 && SMP
1233 help
1234 This option enables the workaround for the 742231 Cortex-A9
1235 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1236 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1237 accessing some data located in the same cache line, may get corrupted
1238 data due to bad handling of the address hazard when the line gets
1239 replaced from one of the CPUs at the same time as another CPU is
1240 accessing it. This workaround sets specific bits in the diagnostic
1241 register of the Cortex-A9 which reduces the linefill issuing
1242 capabilities of the processor.
1243
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001244config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001245 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001246 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001247 help
1248 The PL310 L2 cache controller implements three types of Clean &
1249 Invalidate maintenance operations: by Physical Address
1250 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1251 They are architecturally defined to behave as the execution of a
1252 clean operation followed immediately by an invalidate operation,
1253 both performing to the same memory location. This functionality
1254 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001255 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001256
1257config ARM_ERRATA_720789
1258 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001259 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001260 help
1261 This option enables the workaround for the 720789 Cortex-A9 (prior to
1262 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1263 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1264 As a consequence of this erratum, some TLB entries which should be
1265 invalidated are not, resulting in an incoherency in the system page
1266 tables. The workaround changes the TLB flushing routines to invalidate
1267 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001268
Russell King1f0090a2011-03-16 23:35:25 +00001269config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001270 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001271 depends on CACHE_L2X0
1272 help
1273 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1274 operation (offset 0x7FC). This operation runs in background so that
1275 PL310 can handle normal accesses while it is in progress. Under very
1276 rare circumstances, due to this erratum, write data can be lost when
1277 PL310 treats a cacheable write transaction during a Clean &
1278 Invalidate by Way operation.
1279
Will Deacon475d92f2010-09-28 14:02:02 +01001280config ARM_ERRATA_743622
1281 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1282 depends on CPU_V7
1283 help
1284 This option enables the workaround for the 743622 Cortex-A9
1285 (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1286 optimisation in the Cortex-A9 Store Buffer may lead to data
1287 corruption. This workaround sets a specific bit in the diagnostic
1288 register of the Cortex-A9 which disables the Store Buffer
1289 optimisation, preventing the defect from occurring. This has no
1290 visible impact on the overall performance or power consumption of the
1291 processor.
1292
Will Deacon9a27c272011-02-18 16:36:35 +01001293config ARM_ERRATA_751472
1294 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001295 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001296 help
1297 This option enables the workaround for the 751472 Cortex-A9 (prior
1298 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1299 completion of a following broadcasted operation if the second
1300 operation is received by a CPU before the ICIALLUIS has completed,
1301 potentially leading to corrupted entries in the cache or TLB.
1302
Will Deaconfa0ce402011-11-14 17:24:57 +01001303config PL310_ERRATA_753970
1304 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001305 depends on CACHE_PL310
1306 help
1307 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1308
1309 Under some condition the effect of cache sync operation on
1310 the store buffer still remains when the operation completes.
1311 This means that the store buffer is always asked to drain and
1312 this prevents it from merging any further writes. The workaround
1313 is to replace the normal offset of cache sync operation (0x730)
1314 by another offset targeting an unmapped PL310 register 0x740.
1315 This has the same effect as the cache sync operation: store buffer
1316 drain and waiting for all buffers empty.
1317
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001318config ARM_ERRATA_754322
1319 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1320 depends on CPU_V7
1321 help
1322 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1323 r3p*) erratum. A speculative memory access may cause a page table walk
1324 which starts prior to an ASID switch but completes afterwards. This
1325 can populate the micro-TLB with a stale entry which may be hit with
1326 the new ASID. This workaround places two dsb instructions in the mm
1327 switching code so that no page table walks can cross the ASID switch.
1328
Will Deacon5dab26af2011-03-04 12:38:54 +01001329config ARM_ERRATA_754327
1330 bool "ARM errata: no automatic Store Buffer drain"
1331 depends on CPU_V7 && SMP
1332 help
1333 This option enables the workaround for the 754327 Cortex-A9 (prior to
1334 r2p0) erratum. The Store Buffer does not have any automatic draining
1335 mechanism and therefore a livelock may occur if an external agent
1336 continuously polls a memory location waiting to observe an update.
1337 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1338 written polling loops from denying visibility of updates to memory.
1339
Catalin Marinas145e10e2011-08-15 11:04:41 +01001340config ARM_ERRATA_364296
1341 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1342 depends on CPU_V6 && !SMP
1343 help
1344 This options enables the workaround for the 364296 ARM1136
1345 r0p2 erratum (possible cache data corruption with
1346 hit-under-miss enabled). It sets the undocumented bit 31 in
1347 the auxiliary control register and the FI bit in the control
1348 register, thus disabling hit-under-miss without putting the
1349 processor into full low interrupt latency mode. ARM11MPCore
1350 is not affected.
1351
Will Deaconf630c1b2011-09-15 11:45:15 +01001352config ARM_ERRATA_764369
1353 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1354 depends on CPU_V7 && SMP
1355 help
1356 This option enables the workaround for erratum 764369
1357 affecting Cortex-A9 MPCore with two or more processors (all
1358 current revisions). Under certain timing circumstances, a data
1359 cache line maintenance operation by MVA targeting an Inner
1360 Shareable memory region may fail to proceed up to either the
1361 Point of Coherency or to the Point of Unification of the
1362 system. This workaround adds a DSB instruction before the
1363 relevant cache maintenance functions and sets a specific bit
1364 in the diagnostic control register of the SCU.
1365
Will Deacon11ed0ba2011-11-14 17:24:58 +01001366config PL310_ERRATA_769419
1367 bool "PL310 errata: no automatic Store Buffer drain"
1368 depends on CACHE_L2X0
1369 help
1370 On revisions of the PL310 prior to r3p2, the Store Buffer does
1371 not automatically drain. This can cause normal, non-cacheable
1372 writes to be retained when the memory system is idle, leading
1373 to suboptimal I/O performance for drivers using coherent DMA.
1374 This option adds a write barrier to the cpu_idle loop so that,
1375 on systems with an outer cache, the store buffer is drained
1376 explicitly.
1377
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378endmenu
1379
1380source "arch/arm/common/Kconfig"
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382menu "Bus support"
1383
1384config ARM_AMBA
1385 bool
1386
1387config ISA
1388 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389 help
1390 Find out whether you have ISA slots on your motherboard. ISA is the
1391 name of a bus system, i.e. the way the CPU talks to the other stuff
1392 inside your box. Other bus systems are PCI, EISA, MicroChannel
1393 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1394 newer boards don't support it. If you have ISA, say Y, otherwise N.
1395
Russell King065909b2006-01-04 15:44:16 +00001396# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397config ISA_DMA
1398 bool
Russell King065909b2006-01-04 15:44:16 +00001399 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400
Russell King065909b2006-01-04 15:44:16 +00001401# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001402config ISA_DMA_API
1403 bool
Al Viro5cae8412005-05-04 05:39:22 +01001404
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001406 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407 help
1408 Find out whether you have a PCI motherboard. PCI is the name of a
1409 bus system, i.e. the way the CPU talks to the other stuff inside
1410 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1411 VESA. If you have PCI, say Y, otherwise N.
1412
Anton Vorontsov52882172010-04-19 13:20:49 +01001413config PCI_DOMAINS
1414 bool
1415 depends on PCI
1416
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001417config PCI_NANOENGINE
1418 bool "BSE nanoEngine PCI support"
1419 depends on SA1100_NANOENGINE
1420 help
1421 Enable PCI on the BSE nanoEngine board.
1422
Matthew Wilcox36e23592007-07-10 10:54:40 -06001423config PCI_SYSCALL
1424 def_bool PCI
1425
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426# Select the host bridge type
1427config PCI_HOST_VIA82C505
1428 bool
1429 depends on PCI && ARCH_SHARK
1430 default y
1431
Mike Rapoporta0113a92007-11-25 08:55:34 +01001432config PCI_HOST_ITE8152
1433 bool
1434 depends on PCI && MACH_ARMCORE
1435 default y
1436 select DMABOUNCE
1437
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438source "drivers/pci/Kconfig"
1439
1440source "drivers/pcmcia/Kconfig"
1441
1442endmenu
1443
1444menu "Kernel Features"
1445
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001446source "kernel/time/Kconfig"
1447
Dave Martin3b556582011-12-07 15:38:04 +00001448config HAVE_SMP
1449 bool
1450 help
1451 This option should be selected by machines which have an SMP-
1452 capable CPU.
1453
1454 The only effect of this option is to make the SMP-related
1455 options available to the user for configuration.
1456
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001458 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001459 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001460 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001461 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001462 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001463 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001464 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465 help
1466 This enables support for systems with more than one CPU. If you have
1467 a system with only one CPU, like most personal computers, say N. If
1468 you have a system with more than one CPU, say Y.
1469
1470 If you say N here, the kernel will run on single and multiprocessor
1471 machines, but will use only one CPU of a multiprocessor machine. If
1472 you say Y here, the kernel will run on many, but not all, single
1473 processor machines. On a single processor machine, the kernel will
1474 run faster if you say N here.
1475
Paul Bolle395cf962011-08-15 02:02:26 +02001476 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001478 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479
1480 If you don't know what to do here, say N.
1481
Russell Kingf00ec482010-09-04 10:47:48 +01001482config SMP_ON_UP
1483 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1484 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001485 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001486 default y
1487 help
1488 SMP kernels contain instructions which fail on non-SMP processors.
1489 Enabling this option allows the kernel to modify itself to make
1490 these instructions safe. Disabling it allows about 1K of space
1491 savings.
1492
1493 If you don't know what to do here, say Y.
1494
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001495config ARM_CPU_TOPOLOGY
1496 bool "Support cpu topology definition"
1497 depends on SMP && CPU_V7
1498 default y
1499 help
1500 Support ARM cpu topology definition. The MPIDR register defines
1501 affinity between processors which is then used to describe the cpu
1502 topology of an ARM System.
1503
1504config SCHED_MC
1505 bool "Multi-core scheduler support"
1506 depends on ARM_CPU_TOPOLOGY
1507 help
1508 Multi-core scheduler support improves the CPU scheduler's decision
1509 making when dealing with multi-core CPU chips at a cost of slightly
1510 increased overhead in some places. If unsure say N here.
1511
1512config SCHED_SMT
1513 bool "SMT scheduler support"
1514 depends on ARM_CPU_TOPOLOGY
1515 help
1516 Improves the CPU scheduler's decision making when dealing with
1517 MultiThreading at a cost of slightly increased overhead in some
1518 places. If unsure say N here.
1519
Russell Kinga8cbcd92009-05-16 11:51:14 +01001520config HAVE_ARM_SCU
1521 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001522 help
1523 This option enables support for the ARM system coherency unit
1524
Russell Kingf32f4ce2009-05-16 12:14:21 +01001525config HAVE_ARM_TWD
1526 bool
1527 depends on SMP
Russell King15095bb2011-01-02 15:05:21 +00001528 select TICK_ONESHOT
Russell Kingf32f4ce2009-05-16 12:14:21 +01001529 help
1530 This options enables support for the ARM timer and watchdog unit
1531
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001532choice
1533 prompt "Memory split"
1534 default VMSPLIT_3G
1535 help
1536 Select the desired split between kernel and user memory.
1537
1538 If you are not absolutely sure what you are doing, leave this
1539 option alone!
1540
1541 config VMSPLIT_3G
1542 bool "3G/1G user/kernel split"
1543 config VMSPLIT_2G
1544 bool "2G/2G user/kernel split"
1545 config VMSPLIT_1G
1546 bool "1G/3G user/kernel split"
1547endchoice
1548
1549config PAGE_OFFSET
1550 hex
1551 default 0x40000000 if VMSPLIT_1G
1552 default 0x80000000 if VMSPLIT_2G
1553 default 0xC0000000
1554
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555config NR_CPUS
1556 int "Maximum number of CPUs (2-32)"
1557 range 2 32
1558 depends on SMP
1559 default "4"
1560
Russell Kinga054a812005-11-02 22:24:33 +00001561config HOTPLUG_CPU
1562 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1563 depends on SMP && HOTPLUG && EXPERIMENTAL
1564 help
1565 Say Y here to experiment with turning CPUs off and on. CPUs
1566 can be controlled through /sys/devices/system/cpu.
1567
Russell King37ee16a2005-11-08 19:08:05 +00001568config LOCAL_TIMERS
1569 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001570 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001571 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001572 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001573 help
1574 Enable support for local timers on SMP platforms, rather then the
1575 legacy IPI broadcast method. Local timers allows the system
1576 accounting to be spread across the timer interval, preventing a
1577 "thundering herd" at every timer tick.
1578
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001579config ARCH_NR_GPIO
1580 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001581 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Peter De Schrijver (NVIDIA)4f3f2582011-12-21 10:50:42 +01001582 default 350 if ARCH_U8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001583 default 0
1584 help
1585 Maximum number of GPIOs in the system.
1586
1587 If unsure, leave the default value.
1588
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001589source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590
Russell Kingf8065812006-03-02 22:41:59 +00001591config HZ
1592 int
Kukjin Kim49b7a492010-09-07 15:47:18 +09001593 default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001594 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001595 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001596 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001597 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001598 default 100
1599
Catalin Marinas16c79652009-07-24 12:33:02 +01001600config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001601 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001602 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001603 select AEABI
1604 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001605 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001606 help
1607 By enabling this option, the kernel will be compiled in
1608 Thumb-2 mode. A compiler/assembler that understand the unified
1609 ARM-Thumb syntax is needed.
1610
1611 If unsure, say N.
1612
Dave Martin6f685c52011-03-03 11:41:12 +01001613config THUMB2_AVOID_R_ARM_THM_JUMP11
1614 bool "Work around buggy Thumb-2 short branch relocations in gas"
1615 depends on THUMB2_KERNEL && MODULES
1616 default y
1617 help
1618 Various binutils versions can resolve Thumb-2 branches to
1619 locally-defined, preemptible global symbols as short-range "b.n"
1620 branch instructions.
1621
1622 This is a problem, because there's no guarantee the final
1623 destination of the symbol, or any candidate locations for a
1624 trampoline, are within range of the branch. For this reason, the
1625 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1626 relocation in modules at all, and it makes little sense to add
1627 support.
1628
1629 The symptom is that the kernel fails with an "unsupported
1630 relocation" error when loading some modules.
1631
1632 Until fixed tools are available, passing
1633 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1634 code which hits this problem, at the cost of a bit of extra runtime
1635 stack usage in some cases.
1636
1637 The problem is described in more detail at:
1638 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1639
1640 Only Thumb-2 kernels are affected.
1641
1642 Unless you are sure your tools don't have this problem, say Y.
1643
Catalin Marinas0becb082009-07-24 12:32:53 +01001644config ARM_ASM_UNIFIED
1645 bool
1646
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001647config AEABI
1648 bool "Use the ARM EABI to compile the kernel"
1649 help
1650 This option allows for the kernel to be compiled using the latest
1651 ARM ABI (aka EABI). This is only useful if you are using a user
1652 space environment that is also compiled with EABI.
1653
1654 Since there are major incompatibilities between the legacy ABI and
1655 EABI, especially with regard to structure member alignment, this
1656 option also changes the kernel syscall calling convention to
1657 disambiguate both ABIs and allow for backward compatibility support
1658 (selected with CONFIG_OABI_COMPAT).
1659
1660 To use this you need GCC version 4.0.0 or later.
1661
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001662config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001663 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001664 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001665 default y
1666 help
1667 This option preserves the old syscall interface along with the
1668 new (ARM EABI) one. It also provides a compatibility layer to
1669 intercept syscalls that have structure arguments which layout
1670 in memory differs between the legacy ABI and the new ARM EABI
1671 (only for non "thumb" binaries). This option adds a tiny
1672 overhead to all syscalls and produces a slightly larger kernel.
1673 If you know you'll be using only pure EABI user space then you
1674 can say N here. If this option is not selected and you attempt
1675 to execute a legacy ABI binary then the result will be
1676 UNPREDICTABLE (in fact it can be predicted that it won't work
1677 at all). If in doubt say Y.
1678
Mel Gormaneb335752009-05-13 17:34:48 +01001679config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001680 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001681
Russell King05944d72006-11-30 20:43:51 +00001682config ARCH_SPARSEMEM_ENABLE
1683 bool
1684
Russell King07a2f732008-10-01 21:39:58 +01001685config ARCH_SPARSEMEM_DEFAULT
1686 def_bool ARCH_SPARSEMEM_ENABLE
1687
Russell King05944d72006-11-30 20:43:51 +00001688config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001689 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001690
Will Deacon7b7bf492011-05-19 13:21:14 +01001691config HAVE_ARCH_PFN_VALID
1692 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1693
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001694config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001695 bool "High Memory Support"
1696 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001697 help
1698 The address space of ARM processors is only 4 Gigabytes large
1699 and it has to accommodate user address space, kernel address
1700 space as well as some memory mapped IO. That means that, if you
1701 have a large amount of physical memory and/or IO, not all of the
1702 memory can be "permanently mapped" by the kernel. The physical
1703 memory that is not permanently mapped is called "high memory".
1704
1705 Depending on the selected kernel/user memory split, minimum
1706 vmalloc space and actual amount of RAM, you may not need this
1707 option which should result in a slightly faster kernel.
1708
1709 If unsure, say n.
1710
Russell King65cec8e2009-08-17 20:02:06 +01001711config HIGHPTE
1712 bool "Allocate 2nd-level pagetables from highmem"
1713 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001714
Jamie Iles1b8873a2010-02-02 20:25:44 +01001715config HW_PERF_EVENTS
1716 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001717 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001718 default y
1719 help
1720 Enable hardware performance counter support for perf events. If
1721 disabled, perf events will use software events only.
1722
Dave Hansen3f22ab22005-06-23 00:07:43 -07001723source "mm/Kconfig"
1724
Magnus Dammc1b2d972010-07-05 10:00:11 +01001725config FORCE_MAX_ZONEORDER
1726 int "Maximum zone order" if ARCH_SHMOBILE
1727 range 11 64 if ARCH_SHMOBILE
1728 default "9" if SA1111
1729 default "11"
1730 help
1731 The kernel memory allocator divides physically contiguous memory
1732 blocks into "zones", where each zone is a power of two number of
1733 pages. This option selects the largest power of two that the kernel
1734 keeps in the memory allocator. If you need to allocate very large
1735 blocks of physically contiguous memory, then you may need to
1736 increase this value.
1737
1738 This config option is actually maximum order plus one. For example,
1739 a value of 11 means that the largest free memory block is 2^10 pages.
1740
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741config LEDS
1742 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001743 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001744 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1746 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001747 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001748 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001749 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 help
1751 If you say Y here, the LEDs on your machine will be used
1752 to provide useful information about your current system status.
1753
1754 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1755 be able to select which LEDs are active using the options below. If
1756 you are compiling a kernel for the EBSA-110 or the LART however, the
1757 red LED will simply flash regularly to indicate that the system is
1758 still functional. It is safe to say Y here if you have a CATS
1759 system, but the driver will do nothing.
1760
1761config LEDS_TIMER
1762 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001763 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1764 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001765 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001766 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001767 default y if ARCH_EBSA110
1768 help
1769 If you say Y here, one of the system LEDs (the green one on the
1770 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1771 will flash regularly to indicate that the system is still
1772 operational. This is mainly useful to kernel hackers who are
1773 debugging unstable kernels.
1774
1775 The LART uses the same LED for both Timer LED and CPU usage LED
1776 functions. You may choose to use both, but the Timer LED function
1777 will overrule the CPU usage LED.
1778
1779config LEDS_CPU
1780 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001781 !ARCH_OMAP) \
1782 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1783 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784 depends on LEDS
1785 help
1786 If you say Y here, the red LED will be used to give a good real
1787 time indication of CPU usage, by lighting whenever the idle task
1788 is not currently executing.
1789
1790 The LART uses the same LED for both Timer LED and CPU usage LED
1791 functions. You may choose to use both, but the Timer LED function
1792 will overrule the CPU usage LED.
1793
1794config ALIGNMENT_TRAP
1795 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001796 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001798 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001800 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1802 address divisible by 4. On 32-bit ARM processors, these non-aligned
1803 fetch/store instructions will be emulated in software if you say
1804 here, which has a severe performance impact. This is necessary for
1805 correct operation of some network protocols. With an IP-only
1806 configuration it is safe to say N, otherwise say Y.
1807
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001808config UACCESS_WITH_MEMCPY
1809 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1810 depends on MMU && EXPERIMENTAL
1811 default y if CPU_FEROCEON
1812 help
1813 Implement faster copy_to_user and clear_user methods for CPU
1814 cores where a 8-word STM instruction give significantly higher
1815 memory write throughput than a sequence of individual 32bit stores.
1816
1817 A possible side effect is a slight increase in scheduling latency
1818 between threads sharing the same address space if they invoke
1819 such copy operations with large buffers.
1820
1821 However, if the CPU data cache is using a write-allocate mode,
1822 this option is unlikely to provide any performance gain.
1823
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001824config SECCOMP
1825 bool
1826 prompt "Enable seccomp to safely compute untrusted bytecode"
1827 ---help---
1828 This kernel feature is useful for number crunching applications
1829 that may need to compute untrusted bytecode during their
1830 execution. By using pipes or other transports made available to
1831 the process as file descriptors supporting the read/write
1832 syscalls, it's possible to isolate those applications in
1833 their own address space using seccomp. Once seccomp is
1834 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1835 and the task is only allowed to execute a few safe syscalls
1836 defined by each seccomp mode.
1837
Nicolas Pitrec743f382010-05-24 23:55:42 -04001838config CC_STACKPROTECTOR
1839 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001840 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001841 help
1842 This option turns on the -fstack-protector GCC feature. This
1843 feature puts, at the beginning of functions, a canary value on
1844 the stack just before the return address, and validates
1845 the value just before actually returning. Stack based buffer
1846 overflows (that need to overwrite this return address) now also
1847 overwrite the canary, which gets detected and the attack is then
1848 neutralized via a kernel panic.
1849 This feature requires gcc version 4.2 or above.
1850
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001851config DEPRECATED_PARAM_STRUCT
1852 bool "Provide old way to pass kernel parameters"
1853 help
1854 This was deprecated in 2001 and announced to live on for 5 years.
1855 Some old boot loaders still use this way.
1856
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857endmenu
1858
1859menu "Boot options"
1860
Grant Likely9eb8f672011-04-28 14:27:20 -06001861config USE_OF
1862 bool "Flattened Device Tree support"
1863 select OF
1864 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001865 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001866 help
1867 Include support for flattened device tree machine descriptions.
1868
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869# Compressed boot loader in ROM. Yes, we really want to ask about
1870# TEXT and BSS so we preserve their values in the config files.
1871config ZBOOT_ROM_TEXT
1872 hex "Compressed ROM boot loader base address"
1873 default "0"
1874 help
1875 The physical address at which the ROM-able zImage is to be
1876 placed in the target. Platforms which normally make use of
1877 ROM-able zImage formats normally set this to a suitable
1878 value in their defconfig file.
1879
1880 If ZBOOT_ROM is not enabled, this has no effect.
1881
1882config ZBOOT_ROM_BSS
1883 hex "Compressed ROM boot loader BSS address"
1884 default "0"
1885 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001886 The base address of an area of read/write memory in the target
1887 for the ROM-able zImage which must be available while the
1888 decompressor is running. It must be large enough to hold the
1889 entire decompressed kernel plus an additional 128 KiB.
1890 Platforms which normally make use of ROM-able zImage formats
1891 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001892
1893 If ZBOOT_ROM is not enabled, this has no effect.
1894
1895config ZBOOT_ROM
1896 bool "Compressed boot loader in ROM/flash"
1897 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1898 help
1899 Say Y here if you intend to execute your compressed kernel image
1900 (zImage) directly from ROM or flash. If unsure, say N.
1901
Simon Horman090ab3f2011-04-26 06:29:53 +01001902choice
1903 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1904 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1905 default ZBOOT_ROM_NONE
1906 help
1907 Include experimental SD/MMC loading code in the ROM-able zImage.
1908 With this enabled it is possible to write the the ROM-able zImage
1909 kernel image to an MMC or SD card and boot the kernel straight
1910 from the reset vector. At reset the processor Mask ROM will load
1911 the first part of the the ROM-able zImage which in turn loads the
1912 rest the kernel image to RAM.
1913
1914config ZBOOT_ROM_NONE
1915 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1916 help
1917 Do not load image from SD or MMC
1918
Simon Hormanf45b1142011-01-11 04:01:08 +01001919config ZBOOT_ROM_MMCIF
1920 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001921 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001922 Load image from MMCIF hardware block.
1923
1924config ZBOOT_ROM_SH_MOBILE_SDHI
1925 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1926 help
1927 Load image from SDHI hardware block
1928
1929endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001930
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001931config ARM_APPENDED_DTB
1932 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1933 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1934 help
1935 With this option, the boot code will look for a device tree binary
1936 (DTB) appended to zImage
1937 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1938
1939 This is meant as a backward compatibility convenience for those
1940 systems with a bootloader that can't be upgraded to accommodate
1941 the documented boot protocol using a device tree.
1942
1943 Beware that there is very little in terms of protection against
1944 this option being confused by leftover garbage in memory that might
1945 look like a DTB header after a reboot if no actual DTB is appended
1946 to zImage. Do not leave this option active in a production kernel
1947 if you don't intend to always append a DTB. Proper passing of the
1948 location into r2 of a bootloader provided DTB is always preferable
1949 to this option.
1950
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001951config ARM_ATAG_DTB_COMPAT
1952 bool "Supplement the appended DTB with traditional ATAG information"
1953 depends on ARM_APPENDED_DTB
1954 help
1955 Some old bootloaders can't be updated to a DTB capable one, yet
1956 they provide ATAGs with memory configuration, the ramdisk address,
1957 the kernel cmdline string, etc. Such information is dynamically
1958 provided by the bootloader and can't always be stored in a static
1959 DTB. To allow a device tree enabled kernel to be used with such
1960 bootloaders, this option allows zImage to extract the information
1961 from the ATAG list and store it at run time into the appended DTB.
1962
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963config CMDLINE
1964 string "Default kernel command string"
1965 default ""
1966 help
1967 On some architectures (EBSA110 and CATS), there is currently no way
1968 for the boot loader to pass arguments to the kernel. For these
1969 architectures, you should supply some command-line options at build
1970 time by entering them here. As a minimum, you should specify the
1971 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1972
Victor Boivie4394c122011-05-04 17:07:55 +01001973choice
1974 prompt "Kernel command line type" if CMDLINE != ""
1975 default CMDLINE_FROM_BOOTLOADER
1976
1977config CMDLINE_FROM_BOOTLOADER
1978 bool "Use bootloader kernel arguments if available"
1979 help
1980 Uses the command-line options passed by the boot loader. If
1981 the boot loader doesn't provide any, the default kernel command
1982 string provided in CMDLINE will be used.
1983
1984config CMDLINE_EXTEND
1985 bool "Extend bootloader kernel arguments"
1986 help
1987 The command-line arguments provided by the boot loader will be
1988 appended to the default kernel command string.
1989
Alexander Holler92d20402010-02-16 19:04:53 +01001990config CMDLINE_FORCE
1991 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001992 help
1993 Always use the default kernel command string, even if the boot
1994 loader passes other arguments to the kernel.
1995 This is useful if you cannot or don't want to change the
1996 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001997endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001998
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999config XIP_KERNEL
2000 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002001 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002002 help
2003 Execute-In-Place allows the kernel to run from non-volatile storage
2004 directly addressable by the CPU, such as NOR flash. This saves RAM
2005 space since the text section of the kernel is not loaded from flash
2006 to RAM. Read-write sections, such as the data section and stack,
2007 are still copied to RAM. The XIP kernel is not compressed since
2008 it has to run directly from flash, so it will take more space to
2009 store it. The flash address used to link the kernel object files,
2010 and for storing it, is configuration dependent. Therefore, if you
2011 say Y here, you must know the proper physical address where to
2012 store the kernel image depending on your own flash memory usage.
2013
2014 Also note that the make target becomes "make xipImage" rather than
2015 "make zImage" or "make Image". The final kernel binary to put in
2016 ROM memory will be arch/arm/boot/xipImage.
2017
2018 If unsure, say N.
2019
2020config XIP_PHYS_ADDR
2021 hex "XIP Kernel Physical Location"
2022 depends on XIP_KERNEL
2023 default "0x00080000"
2024 help
2025 This is the physical address in your flash memory the kernel will
2026 be linked for and stored to. This address is dependent on your
2027 own flash usage.
2028
Richard Purdiec587e4a2007-02-06 21:29:00 +01002029config KEXEC
2030 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002031 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002032 help
2033 kexec is a system call that implements the ability to shutdown your
2034 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002035 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002036 you can start any kernel with it, not just Linux.
2037
2038 It is an ongoing process to be certain the hardware in a machine
2039 is properly shutdown, so do not be surprised if this code does not
2040 initially work for you. It may help to enable device hotplugging
2041 support.
2042
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002043config ATAGS_PROC
2044 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002045 depends on KEXEC
2046 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002047 help
2048 Should the atags used to boot the kernel be exported in an "atags"
2049 file in procfs. Useful with kexec.
2050
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002051config CRASH_DUMP
2052 bool "Build kdump crash kernel (EXPERIMENTAL)"
2053 depends on EXPERIMENTAL
2054 help
2055 Generate crash dump after being started by kexec. This should
2056 be normally only set in special crash dump kernels which are
2057 loaded in the main kernel with kexec-tools into a specially
2058 reserved region and then later executed after a crash by
2059 kdump/kexec. The crash dump kernel must be compiled to a
2060 memory address not used by the main kernel
2061
2062 For more details see Documentation/kdump/kdump.txt
2063
Eric Miaoe69edc792010-07-05 15:56:50 +02002064config AUTO_ZRELADDR
2065 bool "Auto calculation of the decompressed kernel image address"
2066 depends on !ZBOOT_ROM && !ARCH_U300
2067 help
2068 ZRELADDR is the physical address where the decompressed kernel
2069 image will be placed. If AUTO_ZRELADDR is selected, the address
2070 will be determined at run-time by masking the current IP with
2071 0xf8000000. This assumes the zImage being placed in the first 128MB
2072 from start of memory.
2073
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074endmenu
2075
Russell Kingac9d7ef2008-08-18 17:26:00 +01002076menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077
Ben Dooks89c52ed2009-07-30 23:23:24 +01002078if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079
2080source "drivers/cpufreq/Kconfig"
2081
Yong Shen64f102b2010-10-21 21:18:59 +08002082config CPU_FREQ_IMX
2083 tristate "CPUfreq driver for i.MX CPUs"
2084 depends on ARCH_MXC && CPU_FREQ
2085 help
2086 This enables the CPUfreq driver for i.MX CPUs.
2087
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088config CPU_FREQ_SA1100
2089 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090
2091config CPU_FREQ_SA1110
2092 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002093
2094config CPU_FREQ_INTEGRATOR
2095 tristate "CPUfreq driver for ARM Integrator CPUs"
2096 depends on ARCH_INTEGRATOR && CPU_FREQ
2097 default y
2098 help
2099 This enables the CPUfreq driver for ARM Integrator CPUs.
2100
2101 For details, take a look at <file:Documentation/cpu-freq>.
2102
2103 If in doubt, say Y.
2104
Russell King9e2697f2007-12-14 13:30:14 +00002105config CPU_FREQ_PXA
2106 bool
2107 depends on CPU_FREQ && ARCH_PXA && PXA25x
2108 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002109 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002110 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2111
Ben Dooks9d56c022009-07-30 23:23:25 +01002112config CPU_FREQ_S3C
2113 bool
2114 help
2115 Internal configuration node for common cpufreq on Samsung SoC
2116
2117config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002118 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002119 depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
2120 select CPU_FREQ_S3C
2121 help
2122 This enables the CPUfreq driver for the Samsung S3C24XX family
2123 of CPUs.
2124
2125 For details, take a look at <file:Documentation/cpu-freq>.
2126
2127 If in doubt, say N.
2128
2129config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002130 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002131 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2132 help
2133 Compile in support for changing the PLL frequency from the
2134 S3C24XX series CPUfreq driver. The PLL takes time to settle
2135 after a frequency change, so by default it is not enabled.
2136
2137 This also means that the PLL tables for the selected CPU(s) will
2138 be built which may increase the size of the kernel image.
2139
2140config CPU_FREQ_S3C24XX_DEBUG
2141 bool "Debug CPUfreq Samsung driver core"
2142 depends on CPU_FREQ_S3C24XX
2143 help
2144 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2145
2146config CPU_FREQ_S3C24XX_IODEBUG
2147 bool "Debug CPUfreq Samsung driver IO timing"
2148 depends on CPU_FREQ_S3C24XX
2149 help
2150 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2151
Ben Dookse6d197a2009-07-30 23:23:42 +01002152config CPU_FREQ_S3C24XX_DEBUGFS
2153 bool "Export debugfs for CPUFreq"
2154 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2155 help
2156 Export status information via debugfs.
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158endif
2159
Russell Kingac9d7ef2008-08-18 17:26:00 +01002160source "drivers/cpuidle/Kconfig"
2161
2162endmenu
2163
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164menu "Floating point emulation"
2165
2166comment "At least one emulation must be selected"
2167
2168config FPE_NWFPE
2169 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002170 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002171 ---help---
2172 Say Y to include the NWFPE floating point emulator in the kernel.
2173 This is necessary to run most binaries. Linux does not currently
2174 support floating point hardware so you need to say Y here even if
2175 your machine has an FPA or floating point co-processor podule.
2176
2177 You may say N here if you are going to load the Acorn FPEmulator
2178 early in the bootup.
2179
2180config FPE_NWFPE_XP
2181 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002182 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 help
2184 Say Y to include 80-bit support in the kernel floating-point
2185 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2186 Note that gcc does not generate 80-bit operations by default,
2187 so in most cases this option only enlarges the size of the
2188 floating point emulator without any good reason.
2189
2190 You almost surely want to say N here.
2191
2192config FPE_FASTFPE
2193 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002194 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195 ---help---
2196 Say Y here to include the FAST floating point emulator in the kernel.
2197 This is an experimental much faster emulator which now also has full
2198 precision for the mantissa. It does not support any exceptions.
2199 It is very simple, and approximately 3-6 times faster than NWFPE.
2200
2201 It should be sufficient for most programs. It may be not suitable
2202 for scientific calculations, but you have to check this for yourself.
2203 If you do not feel you need a faster FP emulation you should better
2204 choose NWFPE.
2205
2206config VFP
2207 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002208 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209 help
2210 Say Y to include VFP support code in the kernel. This is needed
2211 if your hardware includes a VFP unit.
2212
2213 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2214 release notes and additional status information.
2215
2216 Say N if your target does not have VFP hardware.
2217
Catalin Marinas25ebee02007-09-25 15:22:24 +01002218config VFPv3
2219 bool
2220 depends on VFP
2221 default y if CPU_V7
2222
Catalin Marinasb5872db2008-01-10 19:16:17 +01002223config NEON
2224 bool "Advanced SIMD (NEON) Extension support"
2225 depends on VFPv3 && CPU_V7
2226 help
2227 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2228 Extension.
2229
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230endmenu
2231
2232menu "Userspace binary formats"
2233
2234source "fs/Kconfig.binfmt"
2235
2236config ARTHUR
2237 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002238 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239 help
2240 Say Y here to include the kernel code necessary if you want to run
2241 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2242 experimental; if this sounds frightening, say N and sleep in peace.
2243 You can also say M here to compile this support as a module (which
2244 will be called arthur).
2245
2246endmenu
2247
2248menu "Power management options"
2249
Russell Kingeceab4a2005-11-15 11:31:41 +00002250source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251
Johannes Bergf4cb5702007-12-08 02:14:00 +01002252config ARCH_SUSPEND_POSSIBLE
Abhilash Kesavan6b6844d2011-10-04 20:30:22 +09002253 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002254 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
2255 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
Johannes Bergf4cb5702007-12-08 02:14:00 +01002256 def_bool y
2257
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002258config ARM_CPU_SUSPEND
2259 def_bool PM_SLEEP
2260
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261endmenu
2262
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002263source "net/Kconfig"
2264
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002265source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266
2267source "fs/Kconfig"
2268
Linus Torvalds1da177e2005-04-16 15:20:36 -07002269source "arch/arm/Kconfig.debug"
2270
2271source "security/Kconfig"
2272
2273source "crypto/Kconfig"
2274
2275source "lib/Kconfig"