blob: 8ac460a8f4ca64dfd33238af132775bac1a6d6dd [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Mark Brown7563bbf2012-04-15 10:52:54 +01004 select ARCH_HAVE_CUSTOM_GPIO_H
David Woodhousee17c6d52008-06-17 12:19:34 +01005 select HAVE_AOUT
Russell King24056f52011-01-03 11:29:28 +00006 select HAVE_DMA_API_DEBUG
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +02007 select HAVE_IDE if PCI || ISA || PCMCIA
Marek Szyprowski2dc6a012012-02-10 19:55:20 +01008 select HAVE_DMA_ATTRS
Marek Szyprowskie0927052012-08-20 14:39:39 +02009 select HAVE_DMA_CONTIGUOUS if MMU
Russell King2778f622010-07-09 16:27:52 +010010 select HAVE_MEMBLOCK
Alessandro Zummo12b824f2006-03-27 01:16:35 -080011 select RTC_LIB
Ralf Baechle75e71532007-02-09 17:08:58 +000012 select SYS_SUPPORTS_APM_EMULATION
Russell Kinga41297a2011-01-17 15:48:33 +000013 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
Catalin Marinas74634492012-07-30 14:41:09 -070014 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Will Deaconfe166142010-04-30 11:37:51 +010015 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Rabin Vincent09f05d82012-02-18 17:52:41 +010016 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060017 select HAVE_ARCH_KGDB
Wade Farnsworth0693bf62012-04-04 16:19:47 +010018 select HAVE_ARCH_TRACEHOOK
Jon Medhurst856bc352011-06-14 13:09:39 +010019 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080020 select HAVE_KRETPROBES if (HAVE_KPROBES)
Steven Rostedt606576c2008-10-06 19:06:12 -040021 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
Rabin Vincent80be7a72010-08-10 19:58:17 +010022 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
23 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Rabin Vincent0e341af2010-11-06 23:03:53 +053024 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
David Daneye39f5602012-01-10 15:10:21 -080025 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Dmitry Baryshkov1fe53262008-07-18 13:30:14 +040026 select HAVE_GENERIC_DMA_COHERENT
Albin Tonnerree7db7b42010-01-08 14:42:43 -080027 select HAVE_KERNEL_GZIP
28 select HAVE_KERNEL_LZO
Albin Tonnerre6e8699f2010-04-03 11:40:28 +010029 select HAVE_KERNEL_LZMA
Imre Kaloza7f464f2012-01-26 13:08:57 +010030 select HAVE_KERNEL_XZ
Peter Zijlstrae360adb2010-10-14 14:01:34 +080031 select HAVE_IRQ_WORK
Jamie Iles7ada1892010-02-02 20:24:58 +010032 select HAVE_PERF_EVENTS
33 select PERF_USE_VMALLOC
Will Deacone513f8b2010-06-25 12:24:53 +010034 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kinge399b1a2011-01-17 15:08:32 +000035 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
Rabin Vincented604532010-11-30 17:36:48 +010036 select HAVE_C_RECORDMCOUNT
Lennert Buytenheke2a93ec2010-11-29 10:06:57 +010037 select HAVE_GENERIC_HARDIRQS
Stephen Boyd37e74be2012-04-16 22:53:44 +010038 select HARDIRQS_SW_RESEND
39 select GENERIC_IRQ_PROBE
Thomas Gleixner25a56622011-03-24 12:02:11 +010040 select GENERIC_IRQ_SHOW
Will Deaconc1d7e012012-07-30 14:42:46 -070041 select ARCH_WANT_IPC_PARSE_VERSION
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020042 select HARDIRQS_SW_RESEND
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053043 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020044 select GENERIC_PCI_IOMAP
Sam Ravnborge47b65b2012-05-21 20:45:37 +020045 select HAVE_BPF_JIT
Thomas Gleixner84ec6d52012-04-20 13:05:50 +000046 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000047 select KTIME_SCALAR
48 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Will Deacon8c56cc82012-07-06 15:45:39 +010049 select GENERIC_STRNCPY_FROM_USER
50 select GENERIC_STRNLEN_USER
Will Deaconb9a50f72012-07-06 15:46:08 +010051 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 help
53 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000054 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000056 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 Europe. There is an ARM Linux project with a web page at
58 <http://www.arm.linux.org.uk/>.
59
Russell King74facff2011-06-02 11:16:22 +010060config ARM_HAS_SG_CHAIN
61 bool
62
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020063config NEED_SG_DMA_LENGTH
64 bool
65
66config ARM_DMA_USE_IOMMU
67 select NEED_SG_DMA_LENGTH
68 select ARM_HAS_SG_CHAIN
69 bool
70
Russell King1a189b92008-04-13 21:41:55 +010071config HAVE_PWM
72 bool
73
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010074config MIGHT_HAVE_PCI
75 bool
76
Ralf Baechle75e71532007-02-09 17:08:58 +000077config SYS_SUPPORTS_APM_EMULATION
78 bool
79
David Brownell0a938b92007-03-05 00:30:18 -080080config GENERIC_GPIO
81 bool
David Brownell0a938b92007-03-05 00:30:18 -080082
Linus Walleijbc581772009-09-15 17:30:37 +010083config HAVE_TCM
84 bool
85 select GENERIC_ALLOCATOR
86
Russell Kinge119bff2010-01-10 17:23:29 +000087config HAVE_PROC_CPU
88 bool
89
Al Viro5ea81762007-02-11 15:41:31 +000090config NO_IOPORT
91 bool
Al Viro5ea81762007-02-11 15:41:31 +000092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093config EISA
94 bool
95 ---help---
96 The Extended Industry Standard Architecture (EISA) bus was
97 developed as an open alternative to the IBM MicroChannel bus.
98
99 The EISA bus provided some of the features of the IBM MicroChannel
100 bus while maintaining backward compatibility with cards made for
101 the older ISA bus. The EISA bus saw limited use between 1988 and
102 1995 when it was made obsolete by the PCI bus.
103
104 Say Y here if you are building a kernel for an EISA-based machine.
105
106 Otherwise, say N.
107
108config SBUS
109 bool
110
Russell Kingf16fb1e2007-04-28 09:59:37 +0100111config STACKTRACE_SUPPORT
112 bool
113 default y
114
Nicolas Pitref76e9152008-04-24 01:31:46 -0400115config HAVE_LATENCYTOP_SUPPORT
116 bool
117 depends on !SMP
118 default y
119
Russell Kingf16fb1e2007-04-28 09:59:37 +0100120config LOCKDEP_SUPPORT
121 bool
122 default y
123
Russell King7ad1bcb2006-08-27 12:07:02 +0100124config TRACE_IRQFLAGS_SUPPORT
125 bool
126 default y
127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128config RWSEM_GENERIC_SPINLOCK
129 bool
130 default y
131
132config RWSEM_XCHGADD_ALGORITHM
133 bool
134
David Howellsf0d1b0b2006-12-08 02:37:49 -0800135config ARCH_HAS_ILOG2_U32
136 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800137
138config ARCH_HAS_ILOG2_U64
139 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800140
Ben Dooks89c52ed2009-07-30 23:23:24 +0100141config ARCH_HAS_CPUFREQ
142 bool
143 help
144 Internal node to signify that the ARCH has CPUFREQ support
145 and that the relevant menu configurations are displayed for
146 it.
147
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800148config GENERIC_HWEIGHT
149 bool
150 default y
151
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152config GENERIC_CALIBRATE_DELAY
153 bool
154 default y
155
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100156config ARCH_MAY_HAVE_PC_FDC
157 bool
158
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800159config ZONE_DMA
160 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800161
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800162config NEED_DMA_MAP_STATE
163 def_bool y
164
Rob Herring58af4a22012-03-20 14:33:01 -0500165config ARCH_HAS_DMA_SET_COHERENT_MASK
166 bool
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config GENERIC_ISA_DMA
169 bool
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171config FIQ
172 bool
173
Rob Herring13a50452012-02-07 09:28:22 -0600174config NEED_RET_TO_USER
175 bool
176
Al Viro034d2f52005-12-19 16:27:59 -0500177config ARCH_MTD_XIP
178 bool
179
Hyok S. Choic760fc12006-03-27 15:18:50 +0100180config VECTORS_BASE
181 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900182 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100183 default DRAM_BASE if REMAP_VECTORS_TO_RAM
184 default 0x00000000
185 help
186 The base address of exception vectors.
187
Russell Kingdc21af92011-01-04 19:09:43 +0000188config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100189 bool "Patch physical to virtual translations at runtime" if EMBEDDED
190 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100191 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000192 depends on !ARCH_REALVIEW || !SPARSEMEM
193 help
Russell King111e9a52011-05-12 10:02:42 +0100194 Patch phys-to-virt and virt-to-phys translation functions at
195 boot and module load time according to the position of the
196 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000197
Russell King111e9a52011-05-12 10:02:42 +0100198 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100199 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000200
Russell Kingc1beced2011-08-10 10:23:45 +0100201 Only disable this option if you know that you do not require
202 this feature (eg, building a kernel for a single machine) and
203 you need to shrink the kernel to the minimal size.
204
Rob Herring01464222012-08-28 13:06:41 -0500205config NEED_MACH_GPIO_H
206 bool
207 help
208 Select this when mach/gpio.h is required to provide special
209 definitions for this platform. The need for mach/gpio.h should
210 be avoided when possible.
211
Rob Herringc334bc12012-03-04 22:03:33 -0600212config NEED_MACH_IO_H
213 bool
214 help
215 Select this when mach/io.h is required to provide special
216 definitions for this platform. The need for mach/io.h should
217 be avoided when possible.
218
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400219config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400220 bool
Russell King111e9a52011-05-12 10:02:42 +0100221 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400222 Select this when mach/memory.h is required to provide special
223 definitions for this platform. The need for mach/memory.h should
224 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400225
226config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100227 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400228 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100229 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400230 help
231 Please provide the physical address corresponding to the
232 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000233
Simon Glass87e040b2011-08-16 23:44:26 +0100234config GENERIC_BUG
235 def_bool y
236 depends on BUG
237
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238source "init/Kconfig"
239
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700240source "kernel/Kconfig.freezer"
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242menu "System Type"
243
Hyok S. Choi3c427972009-07-24 12:35:00 +0100244config MMU
245 bool "MMU-based Paged Memory Management Support"
246 default y
247 help
248 Select if you want MMU-based virtualised addressing space
249 support by paged memory management. If unsure, say 'Y'.
250
Russell Kingccf50e22010-03-15 19:03:06 +0000251#
252# The "ARM system type" choice list is ordered alphabetically by option
253# text. Please add new entries in the option alphabetic order.
254#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255choice
256 prompt "ARM system type"
Rob Herring387798b2012-09-06 13:41:12 -0500257 default ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
Rob Herring387798b2012-09-06 13:41:12 -0500259config ARCH_MULTIPLATFORM
260 bool "Allow multiple platforms to be selected"
261 select ARM_PATCH_PHYS_VIRT
262 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600263 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500264 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600265 select SPARSE_IRQ
266 select USE_OF
Rob Herring387798b2012-09-06 13:41:12 -0500267 depends on MMU
Dinh Nguyen66314222012-07-18 16:07:18 -0600268
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100269config ARCH_INTEGRATOR
270 bool "ARM Ltd. Integrator family"
271 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100272 select ARCH_HAS_CPUFREQ
Linus Walleija6131632012-06-11 17:33:12 +0200273 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200274 select COMMON_CLK_VERSATILE
Linus Walleij9904f792011-12-09 10:29:23 +0100275 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000276 select ICST
Russell King13edd862010-01-15 21:49:23 +0000277 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000278 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000279 select PLAT_VERSATILE_FPGA_IRQ
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400280 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100281 select SPARSE_IRQ
Linus Walleij3108e6a2012-04-28 14:33:47 +0100282 select MULTI_IRQ_HANDLER
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100283 help
284 Support for ARM's Integrator platform.
285
286config ARCH_REALVIEW
287 bool "ARM Ltd. RealView family"
288 select ARM_AMBA
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200289 select COMMON_CLK
290 select COMMON_CLK_VERSATILE
Russell Kingc5a0adb2010-01-16 20:16:10 +0000291 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100292 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100293 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000294 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000295 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000296 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100297 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400298 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299 help
300 This enables support for ARM Ltd RealView boards.
301
302config ARCH_VERSATILE
303 bool "ARM Ltd. Versatile family"
304 select ARM_AMBA
305 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100306 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900307 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000308 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100309 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100310 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000311 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100312 select PLAT_VERSATILE_CLOCK
Russell King3414ba82011-01-18 20:12:10 +0000313 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000314 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000315 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100316 help
317 This enables support for ARM Ltd Versatile board.
318
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100319config ARCH_AT91
320 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100321 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700322 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100323 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100324 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500325 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500326 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100328 This enables support for systems based on Atmel
329 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330
Simon Arlottec9653b2012-05-26 01:04:43 -0600331config ARCH_BCM2835
332 bool "Broadcom BCM2835 family"
333 select ARCH_WANT_OPTIONAL_GPIOLIB
334 select ARM_AMBA
335 select ARM_ERRATA_411920
336 select ARM_TIMER_SP804
337 select CLKDEV_LOOKUP
338 select COMMON_CLK
339 select CPU_V6
340 select GENERIC_CLOCKEVENTS
341 select MULTI_IRQ_HANDLER
342 select SPARSE_IRQ
343 select USE_OF
344 help
345 This enables support for the Broadcom BCM2835 SoC. This SoC is
346 use in the Raspberry Pi, and Roku 2 devices.
347
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400349 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000350 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000351 select ARCH_USES_GETTIMEOFFSET
Alexander Shiyan61ae48c2012-08-21 20:59:35 +0400352 select COMMON_CLK
353 select CLKDEV_LOOKUP
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400354 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000355 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400356 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300358config ARCH_CNS3XXX
359 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200360 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300361 select GENERIC_CLOCKEVENTS
362 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000363 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100364 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400365 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300366 help
367 Support for Cavium Networks CNS3XXX platform.
368
Russell King788c9702009-04-26 14:21:59 +0100369config ARCH_GEMINI
370 bool "Cortina Systems Gemini"
371 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100372 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000373 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100374 help
375 Support for the Cortina Systems Gemini family SoCs
376
Barry Song156a0992012-08-23 13:41:58 +0800377config ARCH_SIRF
378 bool "CSR SiRF"
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200379 select NO_IOPORT
Arnd Bergmannf6387092012-07-04 14:33:01 +0000380 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200381 select GENERIC_CLOCKEVENTS
Binghua Duan198678b2012-08-20 06:42:36 +0000382 select COMMON_CLK
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200383 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000384 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800385 select PINCTRL
386 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200387 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200388 help
Barry Song156a0992012-08-23 13:41:58 +0800389 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391config ARCH_EBSA110
392 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000393 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100394 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000395 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000396 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600397 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400398 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 help
400 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000401 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 Ethernet interface, two PCMCIA sockets, two serial ports and a
403 parallel port.
404
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000405config ARCH_EP93XX
406 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000407 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000408 select ARM_AMBA
409 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100410 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700411 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100412 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000413 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100414 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000415 help
416 This enables support for the Cirrus EP93xx series of CPUs.
417
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418config ARCH_FOOTBRIDGE
419 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000420 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000422 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200423 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600424 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400425 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000426 help
427 Support for systems based on the DC21285 companion chip
428 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429
Russell King788c9702009-04-26 14:21:59 +0100430config ARCH_MXC
431 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100432 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100433 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100434 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100435 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800436 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200437 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800438 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200439 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100440 help
441 Support for Freescale MXC/iMX-based family of processors
442
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800443config ARCH_MXS
444 bool "Freescale MXS-based"
445 select GENERIC_CLOCKEVENTS
446 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100447 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100448 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800449 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800450 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800451 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800452 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800453 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800454 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800455 help
456 Support for Freescale MXS-based family of processors
457
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100458config ARCH_NETX
459 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100460 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000461 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100463 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000464 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100465 This enables support for systems based on the Hilscher NetX Soc
466
467config ARCH_H720X
468 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000469 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100470 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000471 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100472 help
473 This enables support for systems based on the Hynix HMS720x
474
Russell King3b938be2007-05-12 11:25:44 +0100475config ARCH_IOP13XX
476 bool "IOP13xx-based"
477 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000478 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100479 select PLAT_IOP
480 select PCI
481 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100482 select VMSPLIT_1G
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400483 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600484 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100485 help
486 Support for Intel's IOP13XX (XScale) family of processors.
487
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100488config ARCH_IOP32X
489 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100490 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500492 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600493 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600494 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100495 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100496 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100497 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000498 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100499 Support for Intel's 80219 and IOP32X (XScale) family of
500 processors.
501
502config ARCH_IOP33X
503 bool "IOP33x-based"
504 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000505 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500506 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600507 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600508 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100509 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100510 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100511 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100512 help
513 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514
Russell King3b938be2007-05-12 11:25:44 +0100515config ARCH_IXP4XX
516 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100517 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500518 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100519 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000520 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200521 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100522 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100523 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600524 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100525 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100526 help
Russell King3b938be2007-05-12 11:25:44 +0100527 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100528
Saeed Bisharaedabd382009-08-06 15:12:43 +0300529config ARCH_DOVE
530 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300531 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300532 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100534 select MIGHT_HAVE_PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200535 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100536 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300537 help
538 Support for the Marvell Dove SoC 88AP510
539
Saeed Bishara651c74c2008-06-22 22:45:06 +0200540config ARCH_KIRKWOOD
541 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000542 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200543 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700544 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200545 select GENERIC_CLOCKEVENTS
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200546 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200547 help
548 Support for the following Marvell Kirkwood series SoCs:
549 88F6180, 88F6192 and 88F6281.
550
Kevin Wells40805942010-07-27 08:49:04 -0700551config ARCH_LPC32XX
552 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100553 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700554 select CPU_ARM926T
555 select ARCH_REQUIRE_GPIOLIB
556 select HAVE_IDE
557 select ARM_AMBA
558 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100559 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700560 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200561 select USE_OF
Alexandre Pereira da Silvac49a1832012-07-20 14:01:51 +0200562 select HAVE_PWM
Kevin Wells40805942010-07-27 08:49:04 -0700563 help
564 Support for the NXP LPC32XX family of processors
565
Russell King788c9702009-04-26 14:21:59 +0100566config ARCH_MV78XX0
567 bool "Marvell MV78xx0"
568 select CPU_FEROCEON
569 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700570 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100571 select GENERIC_CLOCKEVENTS
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200572 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100573 help
574 Support for the following Marvell MV78xx0 series SoCs:
575 MV781x0, MV782x0.
576
577config ARCH_ORION5X
578 bool "Marvell Orion"
579 depends on MMU
580 select CPU_FEROCEON
581 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700582 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100583 select GENERIC_CLOCKEVENTS
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200584 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100585 help
586 Support for the following Marvell Orion 5x series SoCs:
587 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
588 Orion-2 (5281), Orion-1-90 (6183).
589
590config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500591 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100592 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100593 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100594 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100595 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800596 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800597 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100598 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400599 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800600 select GENERIC_ALLOCATOR
Rob Herring01464222012-08-28 13:06:41 -0500601 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100602 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500603 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100604
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100605config ARCH_KS8695
606 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000607 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100608 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400609 select NEED_MACH_MEMORY_H
Linus Walleijc7e783d2012-08-29 20:27:22 +0200610 select CLKSRC_MMIO
611 select GENERIC_CLOCKEVENTS
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100612 help
613 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
614 System-on-Chip devices.
615
Russell King788c9702009-04-26 14:21:59 +0100616config ARCH_W90X900
617 bool "Nuvoton W90X900 CPU"
618 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100619 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100620 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100621 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100622 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200623 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100624 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
625 At present, the w90x900 has been renamed nuc900, regarding
626 the ARM series product line, you can login the following
627 link address to know more.
628
629 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
630 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400631
Erik Gillingc5f80062010-01-21 16:53:02 -0800632config ARCH_TEGRA
633 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000634 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100635 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800636 select GENERIC_CLOCKEVENTS
637 select GENERIC_GPIO
638 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000639 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000640 select MIGHT_HAVE_CACHE_L2X0
Colin Cross7056d422010-04-22 20:30:13 -0700641 select ARCH_HAS_CPUFREQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600642 select USE_OF
Prashant Gaikwad92fe58f2012-08-06 11:57:43 +0530643 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800644 help
645 This enables support for NVIDIA Tegra based systems (Tegra APX,
646 Tegra 6xx and Tegra 2 series).
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700649 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100650 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500651 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100652 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100653 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100654 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700655 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100656 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800657 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800658 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800659 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800660 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800661 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200662 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200663 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500664 select NEED_MACH_GPIO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000665 help
eric miao2c8086a2007-09-11 19:13:17 -0700666 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667
Russell King788c9702009-04-26 14:21:59 +0100668config ARCH_MSM
669 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500670 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800671 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700672 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800673 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800674 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800675 Support for Qualcomm MSM/QSD based systems. This runs on the
676 apps processor of the MSM/QSD and depends on a shared memory
677 interface to the modem processor which runs the baseband
678 stack and controls some vital subsystems
679 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800680
Magnus Dammc793c1b2010-02-05 11:14:49 +0000681config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900682 bool "Renesas SH-Mobile / R-Mobile"
683 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900684 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900685 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000686 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900687 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000688 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900689 select NO_IOPORT
690 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000691 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200692 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400693 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000694 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900695 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000696
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697config ARCH_RPC
698 bool "RiscPC"
699 select ARCH_ACORN
700 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100701 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100702 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000703 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000704 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100705 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000706 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200707 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600708 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400709 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 help
711 On the Acorn Risc-PC, Linux can support the internal IDE disk and
712 CD-ROM interface, serial and parallel port, and the floppy drive.
713
714config ARCH_SA1100
715 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100716 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000717 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100718 select ISA
Russell King05944d72006-11-30 20:43:51 +0000719 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500720 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100721 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000722 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100723 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800724 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700725 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200726 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500727 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400728 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100729 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000730 help
731 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900733config ARCH_S3C24XX
734 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800735 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100736 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700737 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900738 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000739 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900740 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900741 select HAVE_S3C_RTC if RTC_CLASS
742 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500743 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600744 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900746 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
747 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
748 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
749 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900750
Ben Dooksa08ab632008-10-21 14:06:39 +0100751config ARCH_S3C64XX
752 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000753 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900754 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900755 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100756 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900757 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900758 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900759 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000760 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100761 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900762 select ARCH_REQUIRE_GPIOLIB
763 select SAMSUNG_CLKSRC
764 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900765 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900766 select S3C_DEV_NAND
767 select USB_ARCH_HAS_OHCI
768 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900769 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900770 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500771 select NEED_MACH_GPIO_H
Ben Dooksa08ab632008-10-21 14:06:39 +0100772 help
773 Samsung S3C64XX series based systems
774
Kukjin Kim49b7a492010-09-07 15:47:18 +0900775config ARCH_S5P64X0
776 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900777 select CPU_V6
778 select GENERIC_GPIO
779 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900780 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900781 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900782 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900783 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900784 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900785 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500786 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900787 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900788 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
789 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900790
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200791config ARCH_S5PC100
792 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900793 select GENERIC_GPIO
794 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900795 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900796 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900797 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900798 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900799 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900800 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500801 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900802 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200803 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900804
Kukjin Kim170f4e42010-02-24 16:40:44 +0900805config ARCH_S5PV210
806 bool "Samsung S5PV210/S5PC110"
807 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900808 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900809 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900810 select GENERIC_GPIO
811 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900812 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900813 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900814 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900815 select GENERIC_CLOCKEVENTS
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
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900818 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500819 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400820 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900821 help
822 Samsung S5PV210/S5PC110 series based systems
823
Kukjin Kim83014572011-11-06 13:54:56 +0900824config ARCH_EXYNOS
825 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900826 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900827 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900828 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900829 select GENERIC_GPIO
830 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900831 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900832 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900833 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900834 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900835 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900836 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herring01464222012-08-28 13:06:41 -0500837 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400838 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900839 help
Kukjin Kim83014572011-11-06 13:54:56 +0900840 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842config ARCH_SHARK
843 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000844 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100845 select ISA
846 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100847 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100848 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000849 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400850 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000851 help
852 Support for the StrongARM based Digital DNARD machine, also known
853 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Linus Walleijd98aac72009-04-27 10:21:46 +0100855config ARCH_U300
856 bool "ST-Ericsson U300 Series"
857 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100858 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100859 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100860 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100861 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200862 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100863 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100864 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100865 select CLKDEV_LOOKUP
Linus Walleij50667d62012-06-19 23:44:25 +0200866 select COMMON_CLK
Linus Walleijd98aac72009-04-27 10:21:46 +0100867 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100868 select ARCH_REQUIRE_GPIOLIB
Linus Walleija4fe2922012-08-13 13:49:45 +0200869 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100870 help
871 Support for ST-Ericsson U300 series mobile platforms.
872
Russell Kingccf50e22010-03-15 19:03:06 +0000873config ARCH_U8500
874 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700875 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000876 select CPU_V7
877 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000878 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100879 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100880 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100881 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000882 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000883 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000884 help
885 Support for ST-Ericsson's Ux500 architecture
886
887config ARCH_NOMADIK
888 bool "STMicroelectronics Nomadik"
889 select ARM_AMBA
890 select ARM_VIC
891 select CPU_ARM926T
Linus Walleij4a31bd22012-01-11 13:52:34 +0100892 select COMMON_CLK
Russell Kingccf50e22010-03-15 19:03:06 +0000893 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000894 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200895 select PINCTRL_STN8815
Dave Martince5ea9f2011-11-29 15:56:19 +0000896 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000897 select ARCH_REQUIRE_GPIOLIB
898 help
899 Support for the Nomadik platform by ST-Ericsson
900
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100901config ARCH_DAVINCI
902 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100903 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700904 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100905 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700906 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100907 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700908 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100909 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530910 select ARCH_HAS_HOLES_MEMORYMODEL
Rob Herring01464222012-08-28 13:06:41 -0500911 select NEED_MACH_GPIO_H
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100912 help
913 Support for TI's DaVinci platform.
914
Russell King3b938be2007-05-12 11:25:44 +0100915config ARCH_OMAP
916 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600917 depends on MMU
David Brownell9483a572008-07-23 21:26:48 -0700918 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700919 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100920 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700921 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700922 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800923 select ARCH_HAS_HOLES_MEMORYMODEL
Rob Herring01464222012-08-28 13:06:41 -0500924 select NEED_MACH_GPIO_H
Russell King3b938be2007-05-12 11:25:44 +0100925 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200926 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100927
viresh kumarcee37e52010-04-01 12:31:05 +0100928config PLAT_SPEAR
929 bool "ST SPEAr"
930 select ARM_AMBA
931 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100932 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +0530933 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +0100934 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +0100935 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +0100936 select HAVE_CLK
937 help
938 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
939
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100940config ARCH_VT8500
941 bool "VIA/WonderMedia 85xx"
942 select CPU_ARM926T
943 select GENERIC_GPIO
944 select ARCH_HAS_CPUFREQ
945 select GENERIC_CLOCKEVENTS
946 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200947 select USE_OF
948 select COMMON_CLK
949 select HAVE_CLK
950 select CLKDEV_LOOKUP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100951 help
952 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +0800953
John Linnb85a3ef2011-06-20 11:47:27 -0600954config ARCH_ZYNQ
955 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +0800956 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +0800957 select GENERIC_CLOCKEVENTS
958 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -0600959 select ARM_GIC
960 select ARM_AMBA
961 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +0000962 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +0800963 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +0800964 help
John Linnb85a3ef2011-06-20 11:47:27 -0600965 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966endchoice
967
Rob Herring387798b2012-09-06 13:41:12 -0500968menu "Multiple platform selection"
969 depends on ARCH_MULTIPLATFORM
970
971comment "CPU Core family selection"
972
973config ARCH_MULTI_V4
974 bool "ARMv4 based platforms (FA526, StrongARM)"
975 select ARCH_MULTI_V4_V5
976 depends on !ARCH_MULTI_V6_V7
977
978config ARCH_MULTI_V4T
979 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
980 select ARCH_MULTI_V4_V5
981 depends on !ARCH_MULTI_V6_V7
982
983config ARCH_MULTI_V5
984 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
985 select ARCH_MULTI_V4_V5
986 depends on !ARCH_MULTI_V6_V7
987
988config ARCH_MULTI_V4_V5
989 bool
990
991config ARCH_MULTI_V6
992 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
993 select CPU_V6
994 select ARCH_MULTI_V6_V7
995
996config ARCH_MULTI_V7
997 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
998 select CPU_V7
Rob Herring61727632012-09-06 13:43:04 -0500999 select ARCH_VEXPRESS
Rob Herring387798b2012-09-06 13:41:12 -05001000 default y
1001 select ARCH_MULTI_V6_V7
1002
1003config ARCH_MULTI_V6_V7
1004 bool
1005
1006config ARCH_MULTI_CPU_AUTO
1007 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1008 select ARCH_MULTI_V5
1009
1010endmenu
1011
Russell Kingccf50e22010-03-15 19:03:06 +00001012#
1013# This is sorted alphabetically by mach-* pathname. However, plat-*
1014# Kconfigs may be included either alphabetically (according to the
1015# plat- suffix) or along side the corresponding mach-* source.
1016#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001017source "arch/arm/mach-mvebu/Kconfig"
1018
Russell King95b8f202010-01-14 11:43:54 +00001019source "arch/arm/mach-at91/Kconfig"
1020
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021source "arch/arm/mach-clps711x/Kconfig"
1022
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001023source "arch/arm/mach-cns3xxx/Kconfig"
1024
Russell King95b8f202010-01-14 11:43:54 +00001025source "arch/arm/mach-davinci/Kconfig"
1026
1027source "arch/arm/mach-dove/Kconfig"
1028
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001029source "arch/arm/mach-ep93xx/Kconfig"
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031source "arch/arm/mach-footbridge/Kconfig"
1032
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001033source "arch/arm/mach-gemini/Kconfig"
1034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-h720x/Kconfig"
1036
Rob Herring387798b2012-09-06 13:41:12 -05001037source "arch/arm/mach-highbank/Kconfig"
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source "arch/arm/mach-integrator/Kconfig"
1040
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001041source "arch/arm/mach-iop32x/Kconfig"
1042
1043source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044
Dan Williams285f5fa2006-12-07 02:59:39 +01001045source "arch/arm/mach-iop13xx/Kconfig"
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047source "arch/arm/mach-ixp4xx/Kconfig"
1048
Russell King95b8f202010-01-14 11:43:54 +00001049source "arch/arm/mach-kirkwood/Kconfig"
1050
1051source "arch/arm/mach-ks8695/Kconfig"
1052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-msm/Kconfig"
1054
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001055source "arch/arm/mach-mv78xx0/Kconfig"
1056
Russell King95b8f202010-01-14 11:43:54 +00001057source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001059source "arch/arm/mach-mxs/Kconfig"
1060
Russell King95b8f202010-01-14 11:43:54 +00001061source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001062
Russell King95b8f202010-01-14 11:43:54 +00001063source "arch/arm/mach-nomadik/Kconfig"
1064source "arch/arm/plat-nomadik/Kconfig"
1065
Tony Lindgrend48af152005-07-10 19:58:17 +01001066source "arch/arm/plat-omap/Kconfig"
1067
1068source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069
Tony Lindgren1dbae812005-11-10 14:26:51 +00001070source "arch/arm/mach-omap2/Kconfig"
1071
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001072source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001073
Rob Herring387798b2012-09-06 13:41:12 -05001074source "arch/arm/mach-picoxcell/Kconfig"
1075
Russell King95b8f202010-01-14 11:43:54 +00001076source "arch/arm/mach-pxa/Kconfig"
1077source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Russell King95b8f202010-01-14 11:43:54 +00001079source "arch/arm/mach-mmp/Kconfig"
1080
1081source "arch/arm/mach-realview/Kconfig"
1082
1083source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001084
Ben Dookscf383672009-11-10 00:14:58 +00001085source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001086source "arch/arm/plat-s3c24xx/Kconfig"
1087
Rob Herring387798b2012-09-06 13:41:12 -05001088source "arch/arm/mach-socfpga/Kconfig"
1089
viresh kumarcee37e52010-04-01 12:31:05 +01001090source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001091
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001092source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001093if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001094source "arch/arm/mach-s3c2412/Kconfig"
1095source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001096endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
Ben Dooksa08ab632008-10-21 14:06:39 +01001098if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001099source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001100endif
1101
Kukjin Kim49b7a492010-09-07 15:47:18 +09001102source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001103
Byungho Min5a7652f2009-06-23 21:39:42 +09001104source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001105
Kukjin Kim170f4e42010-02-24 16:40:44 +09001106source "arch/arm/mach-s5pv210/Kconfig"
1107
Kukjin Kim83014572011-11-06 13:54:56 +09001108source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001109
Russell King882d01f2010-03-02 23:40:15 +00001110source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111
Barry Song156a0992012-08-23 13:41:58 +08001112source "arch/arm/mach-prima2/Kconfig"
1113
Erik Gillingc5f80062010-01-21 16:53:02 -08001114source "arch/arm/mach-tegra/Kconfig"
1115
Russell King95b8f202010-01-14 11:43:54 +00001116source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001117
Russell King95b8f202010-01-14 11:43:54 +00001118source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001119
1120source "arch/arm/mach-versatile/Kconfig"
1121
Russell Kingceade892010-02-11 21:44:53 +00001122source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001123source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001124
wanzongshun7ec80dd2008-12-03 03:55:38 +01001125source "arch/arm/mach-w90x900/Kconfig"
1126
Linus Torvalds1da177e2005-04-16 15:20:36 -07001127# Definitions to make life easier
1128config ARCH_ACORN
1129 bool
1130
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001131config PLAT_IOP
1132 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001133 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001134
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001135config PLAT_ORION
1136 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001137 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001138 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001139 select IRQ_DOMAIN
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001140 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001141
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001142config PLAT_ORION_LEGACY
1143 bool
1144 select PLAT_ORION
1145
Eric Miaobd5ce432009-01-20 12:06:01 +08001146config PLAT_PXA
1147 bool
1148
Russell Kingf4b8b312010-01-14 12:48:06 +00001149config PLAT_VERSATILE
1150 bool
1151
Russell Kinge3887712010-01-14 13:30:16 +00001152config ARM_TIMER_SP804
1153 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001154 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001155 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001156
Linus Torvalds1da177e2005-04-16 15:20:36 -07001157source arch/arm/mm/Kconfig
1158
Russell King958cab02011-12-11 10:04:00 +00001159config ARM_NR_BANKS
1160 int
1161 default 16 if ARCH_EP93XX
1162 default 8
1163
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001164config IWMMXT
1165 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001166 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1167 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001168 help
1169 Enable support for iWMMXt context switching at run time if
1170 running on a CPU that supports it.
1171
Linus Torvalds1da177e2005-04-16 15:20:36 -07001172config XSCALE_PMU
1173 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001174 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175 default y
1176
eric miao52108642010-12-13 09:42:34 +01001177config MULTI_IRQ_HANDLER
1178 bool
1179 help
1180 Allow each machine to specify it's own IRQ handler at run time.
1181
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001182if !MMU
1183source "arch/arm/Kconfig-nommu"
1184endif
1185
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001186config ARM_ERRATA_326103
1187 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1188 depends on CPU_V6
1189 help
1190 Executing a SWP instruction to read-only memory does not set bit 11
1191 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1192 treat the access as a read, preventing a COW from occurring and
1193 causing the faulting task to livelock.
1194
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001195config ARM_ERRATA_411920
1196 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001197 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001198 help
1199 Invalidation of the Instruction Cache operation can
1200 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1201 It does not affect the MPCore. This option enables the ARM Ltd.
1202 recommended workaround.
1203
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001204config ARM_ERRATA_430973
1205 bool "ARM errata: Stale prediction on replaced interworking branch"
1206 depends on CPU_V7
1207 help
1208 This option enables the workaround for the 430973 Cortex-A8
1209 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1210 interworking branch is replaced with another code sequence at the
1211 same virtual address, whether due to self-modifying code or virtual
1212 to physical address re-mapping, Cortex-A8 does not recover from the
1213 stale interworking branch prediction. This results in Cortex-A8
1214 executing the new code sequence in the incorrect ARM or Thumb state.
1215 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1216 and also flushes the branch target cache at every context switch.
1217 Note that setting specific bits in the ACTLR register may not be
1218 available in non-secure mode.
1219
Catalin Marinas855c5512009-04-30 17:06:15 +01001220config ARM_ERRATA_458693
1221 bool "ARM errata: Processor deadlock when a false hazard is created"
1222 depends on CPU_V7
1223 help
1224 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1225 erratum. For very specific sequences of memory operations, it is
1226 possible for a hazard condition intended for a cache line to instead
1227 be incorrectly associated with a different cache line. This false
1228 hazard might then cause a processor deadlock. The workaround enables
1229 the L1 caching of the NEON accesses and disables the PLD instruction
1230 in the ACTLR register. Note that setting specific bits in the ACTLR
1231 register may not be available in non-secure mode.
1232
Catalin Marinas0516e462009-04-30 17:06:20 +01001233config ARM_ERRATA_460075
1234 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1235 depends on CPU_V7
1236 help
1237 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1238 erratum. Any asynchronous access to the L2 cache may encounter a
1239 situation in which recent store transactions to the L2 cache are lost
1240 and overwritten with stale memory contents from external memory. The
1241 workaround disables the write-allocate mode for the L2 cache via the
1242 ACTLR register. Note that setting specific bits in the ACTLR register
1243 may not be available in non-secure mode.
1244
Will Deacon9f050272010-09-14 09:51:43 +01001245config ARM_ERRATA_742230
1246 bool "ARM errata: DMB operation may be faulty"
1247 depends on CPU_V7 && SMP
1248 help
1249 This option enables the workaround for the 742230 Cortex-A9
1250 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1251 between two write operations may not ensure the correct visibility
1252 ordering of the two writes. This workaround sets a specific bit in
1253 the diagnostic register of the Cortex-A9 which causes the DMB
1254 instruction to behave as a DSB, ensuring the correct behaviour of
1255 the two writes.
1256
Will Deacona672e992010-09-14 09:53:02 +01001257config ARM_ERRATA_742231
1258 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1259 depends on CPU_V7 && SMP
1260 help
1261 This option enables the workaround for the 742231 Cortex-A9
1262 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1263 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1264 accessing some data located in the same cache line, may get corrupted
1265 data due to bad handling of the address hazard when the line gets
1266 replaced from one of the CPUs at the same time as another CPU is
1267 accessing it. This workaround sets specific bits in the diagnostic
1268 register of the Cortex-A9 which reduces the linefill issuing
1269 capabilities of the processor.
1270
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001271config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001272 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001273 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001274 help
1275 The PL310 L2 cache controller implements three types of Clean &
1276 Invalidate maintenance operations: by Physical Address
1277 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1278 They are architecturally defined to behave as the execution of a
1279 clean operation followed immediately by an invalidate operation,
1280 both performing to the same memory location. This functionality
1281 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001282 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001283
1284config ARM_ERRATA_720789
1285 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001286 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001287 help
1288 This option enables the workaround for the 720789 Cortex-A9 (prior to
1289 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1290 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1291 As a consequence of this erratum, some TLB entries which should be
1292 invalidated are not, resulting in an incoherency in the system page
1293 tables. The workaround changes the TLB flushing routines to invalidate
1294 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001295
Russell King1f0090a2011-03-16 23:35:25 +00001296config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001297 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001298 depends on CACHE_L2X0
1299 help
1300 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1301 operation (offset 0x7FC). This operation runs in background so that
1302 PL310 can handle normal accesses while it is in progress. Under very
1303 rare circumstances, due to this erratum, write data can be lost when
1304 PL310 treats a cacheable write transaction during a Clean &
1305 Invalidate by Way operation.
1306
Will Deacon475d92f2010-09-28 14:02:02 +01001307config ARM_ERRATA_743622
1308 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1309 depends on CPU_V7
1310 help
1311 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001312 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001313 optimisation in the Cortex-A9 Store Buffer may lead to data
1314 corruption. This workaround sets a specific bit in the diagnostic
1315 register of the Cortex-A9 which disables the Store Buffer
1316 optimisation, preventing the defect from occurring. This has no
1317 visible impact on the overall performance or power consumption of the
1318 processor.
1319
Will Deacon9a27c272011-02-18 16:36:35 +01001320config ARM_ERRATA_751472
1321 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001322 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001323 help
1324 This option enables the workaround for the 751472 Cortex-A9 (prior
1325 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1326 completion of a following broadcasted operation if the second
1327 operation is received by a CPU before the ICIALLUIS has completed,
1328 potentially leading to corrupted entries in the cache or TLB.
1329
Will Deaconfa0ce402011-11-14 17:24:57 +01001330config PL310_ERRATA_753970
1331 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001332 depends on CACHE_PL310
1333 help
1334 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1335
1336 Under some condition the effect of cache sync operation on
1337 the store buffer still remains when the operation completes.
1338 This means that the store buffer is always asked to drain and
1339 this prevents it from merging any further writes. The workaround
1340 is to replace the normal offset of cache sync operation (0x730)
1341 by another offset targeting an unmapped PL310 register 0x740.
1342 This has the same effect as the cache sync operation: store buffer
1343 drain and waiting for all buffers empty.
1344
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001345config ARM_ERRATA_754322
1346 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1347 depends on CPU_V7
1348 help
1349 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1350 r3p*) erratum. A speculative memory access may cause a page table walk
1351 which starts prior to an ASID switch but completes afterwards. This
1352 can populate the micro-TLB with a stale entry which may be hit with
1353 the new ASID. This workaround places two dsb instructions in the mm
1354 switching code so that no page table walks can cross the ASID switch.
1355
Will Deacon5dab26a2011-03-04 12:38:54 +01001356config ARM_ERRATA_754327
1357 bool "ARM errata: no automatic Store Buffer drain"
1358 depends on CPU_V7 && SMP
1359 help
1360 This option enables the workaround for the 754327 Cortex-A9 (prior to
1361 r2p0) erratum. The Store Buffer does not have any automatic draining
1362 mechanism and therefore a livelock may occur if an external agent
1363 continuously polls a memory location waiting to observe an update.
1364 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1365 written polling loops from denying visibility of updates to memory.
1366
Catalin Marinas145e10e2011-08-15 11:04:41 +01001367config ARM_ERRATA_364296
1368 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1369 depends on CPU_V6 && !SMP
1370 help
1371 This options enables the workaround for the 364296 ARM1136
1372 r0p2 erratum (possible cache data corruption with
1373 hit-under-miss enabled). It sets the undocumented bit 31 in
1374 the auxiliary control register and the FI bit in the control
1375 register, thus disabling hit-under-miss without putting the
1376 processor into full low interrupt latency mode. ARM11MPCore
1377 is not affected.
1378
Will Deaconf630c1b2011-09-15 11:45:15 +01001379config ARM_ERRATA_764369
1380 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1381 depends on CPU_V7 && SMP
1382 help
1383 This option enables the workaround for erratum 764369
1384 affecting Cortex-A9 MPCore with two or more processors (all
1385 current revisions). Under certain timing circumstances, a data
1386 cache line maintenance operation by MVA targeting an Inner
1387 Shareable memory region may fail to proceed up to either the
1388 Point of Coherency or to the Point of Unification of the
1389 system. This workaround adds a DSB instruction before the
1390 relevant cache maintenance functions and sets a specific bit
1391 in the diagnostic control register of the SCU.
1392
Will Deacon11ed0ba2011-11-14 17:24:58 +01001393config PL310_ERRATA_769419
1394 bool "PL310 errata: no automatic Store Buffer drain"
1395 depends on CACHE_L2X0
1396 help
1397 On revisions of the PL310 prior to r3p2, the Store Buffer does
1398 not automatically drain. This can cause normal, non-cacheable
1399 writes to be retained when the memory system is idle, leading
1400 to suboptimal I/O performance for drivers using coherent DMA.
1401 This option adds a write barrier to the cpu_idle loop so that,
1402 on systems with an outer cache, the store buffer is drained
1403 explicitly.
1404
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405endmenu
1406
1407source "arch/arm/common/Kconfig"
1408
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409menu "Bus support"
1410
1411config ARM_AMBA
1412 bool
1413
1414config ISA
1415 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001416 help
1417 Find out whether you have ISA slots on your motherboard. ISA is the
1418 name of a bus system, i.e. the way the CPU talks to the other stuff
1419 inside your box. Other bus systems are PCI, EISA, MicroChannel
1420 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1421 newer boards don't support it. If you have ISA, say Y, otherwise N.
1422
Russell King065909b2006-01-04 15:44:16 +00001423# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424config ISA_DMA
1425 bool
Russell King065909b2006-01-04 15:44:16 +00001426 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427
Russell King065909b2006-01-04 15:44:16 +00001428# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001429config ISA_DMA_API
1430 bool
Al Viro5cae8412005-05-04 05:39:22 +01001431
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001433 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 help
1435 Find out whether you have a PCI motherboard. PCI is the name of a
1436 bus system, i.e. the way the CPU talks to the other stuff inside
1437 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1438 VESA. If you have PCI, say Y, otherwise N.
1439
Anton Vorontsov52882172010-04-19 13:20:49 +01001440config PCI_DOMAINS
1441 bool
1442 depends on PCI
1443
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001444config PCI_NANOENGINE
1445 bool "BSE nanoEngine PCI support"
1446 depends on SA1100_NANOENGINE
1447 help
1448 Enable PCI on the BSE nanoEngine board.
1449
Matthew Wilcox36e23592007-07-10 10:54:40 -06001450config PCI_SYSCALL
1451 def_bool PCI
1452
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453# Select the host bridge type
1454config PCI_HOST_VIA82C505
1455 bool
1456 depends on PCI && ARCH_SHARK
1457 default y
1458
Mike Rapoporta0113a92007-11-25 08:55:34 +01001459config PCI_HOST_ITE8152
1460 bool
1461 depends on PCI && MACH_ARMCORE
1462 default y
1463 select DMABOUNCE
1464
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465source "drivers/pci/Kconfig"
1466
1467source "drivers/pcmcia/Kconfig"
1468
1469endmenu
1470
1471menu "Kernel Features"
1472
Dave Martin3b556582011-12-07 15:38:04 +00001473config HAVE_SMP
1474 bool
1475 help
1476 This option should be selected by machines which have an SMP-
1477 capable CPU.
1478
1479 The only effect of this option is to make the SMP-related
1480 options available to the user for configuration.
1481
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001483 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001484 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001485 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001486 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001487 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001488 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001489 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490 help
1491 This enables support for systems with more than one CPU. If you have
1492 a system with only one CPU, like most personal computers, say N. If
1493 you have a system with more than one CPU, say Y.
1494
1495 If you say N here, the kernel will run on single and multiprocessor
1496 machines, but will use only one CPU of a multiprocessor machine. If
1497 you say Y here, the kernel will run on many, but not all, single
1498 processor machines. On a single processor machine, the kernel will
1499 run faster if you say N here.
1500
Paul Bolle395cf962011-08-15 02:02:26 +02001501 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001503 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504
1505 If you don't know what to do here, say N.
1506
Russell Kingf00ec482010-09-04 10:47:48 +01001507config SMP_ON_UP
1508 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1509 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001510 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001511 default y
1512 help
1513 SMP kernels contain instructions which fail on non-SMP processors.
1514 Enabling this option allows the kernel to modify itself to make
1515 these instructions safe. Disabling it allows about 1K of space
1516 savings.
1517
1518 If you don't know what to do here, say Y.
1519
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001520config ARM_CPU_TOPOLOGY
1521 bool "Support cpu topology definition"
1522 depends on SMP && CPU_V7
1523 default y
1524 help
1525 Support ARM cpu topology definition. The MPIDR register defines
1526 affinity between processors which is then used to describe the cpu
1527 topology of an ARM System.
1528
1529config SCHED_MC
1530 bool "Multi-core scheduler support"
1531 depends on ARM_CPU_TOPOLOGY
1532 help
1533 Multi-core scheduler support improves the CPU scheduler's decision
1534 making when dealing with multi-core CPU chips at a cost of slightly
1535 increased overhead in some places. If unsure say N here.
1536
1537config SCHED_SMT
1538 bool "SMT scheduler support"
1539 depends on ARM_CPU_TOPOLOGY
1540 help
1541 Improves the CPU scheduler's decision making when dealing with
1542 MultiThreading at a cost of slightly increased overhead in some
1543 places. If unsure say N here.
1544
Russell Kinga8cbcd92009-05-16 11:51:14 +01001545config HAVE_ARM_SCU
1546 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001547 help
1548 This option enables support for the ARM system coherency unit
1549
Marc Zyngier022c03a2012-01-11 17:25:17 +00001550config ARM_ARCH_TIMER
1551 bool "Architected timer support"
1552 depends on CPU_V7
1553 help
1554 This option enables support for the ARM architected timer
1555
Russell Kingf32f4ce2009-05-16 12:14:21 +01001556config HAVE_ARM_TWD
1557 bool
1558 depends on SMP
1559 help
1560 This options enables support for the ARM timer and watchdog unit
1561
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001562choice
1563 prompt "Memory split"
1564 default VMSPLIT_3G
1565 help
1566 Select the desired split between kernel and user memory.
1567
1568 If you are not absolutely sure what you are doing, leave this
1569 option alone!
1570
1571 config VMSPLIT_3G
1572 bool "3G/1G user/kernel split"
1573 config VMSPLIT_2G
1574 bool "2G/2G user/kernel split"
1575 config VMSPLIT_1G
1576 bool "1G/3G user/kernel split"
1577endchoice
1578
1579config PAGE_OFFSET
1580 hex
1581 default 0x40000000 if VMSPLIT_1G
1582 default 0x80000000 if VMSPLIT_2G
1583 default 0xC0000000
1584
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585config NR_CPUS
1586 int "Maximum number of CPUs (2-32)"
1587 range 2 32
1588 depends on SMP
1589 default "4"
1590
Russell Kinga054a812005-11-02 22:24:33 +00001591config HOTPLUG_CPU
1592 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1593 depends on SMP && HOTPLUG && EXPERIMENTAL
1594 help
1595 Say Y here to experiment with turning CPUs off and on. CPUs
1596 can be controlled through /sys/devices/system/cpu.
1597
Russell King37ee16a2005-11-08 19:08:05 +00001598config LOCAL_TIMERS
1599 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001600 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001601 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001602 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001603 help
1604 Enable support for local timers on SMP platforms, rather then the
1605 legacy IPI broadcast method. Local timers allows the system
1606 accounting to be spread across the timer interval, preventing a
1607 "thundering herd" at every timer tick.
1608
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001609config ARCH_NR_GPIO
1610 int
Peter De Schrijver (NVIDIA)3dea19e82011-12-21 15:14:52 +01001611 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001612 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001613 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301614 default 512 if SOC_OMAP5
Tony Priske9a91de2012-08-03 21:00:06 +12001615 default 288 if ARCH_VT8500
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001616 default 0
1617 help
1618 Maximum number of GPIOs in the system.
1619
1620 If unsure, leave the default value.
1621
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001622source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623
Russell Kingf8065812006-03-02 22:41:59 +00001624config HZ
1625 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001626 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001627 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001628 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001629 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001630 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001631 default 100
1632
Catalin Marinas16c79652009-07-24 12:33:02 +01001633config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001634 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001635 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001636 select AEABI
1637 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001638 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001639 help
1640 By enabling this option, the kernel will be compiled in
1641 Thumb-2 mode. A compiler/assembler that understand the unified
1642 ARM-Thumb syntax is needed.
1643
1644 If unsure, say N.
1645
Dave Martin6f685c52011-03-03 11:41:12 +01001646config THUMB2_AVOID_R_ARM_THM_JUMP11
1647 bool "Work around buggy Thumb-2 short branch relocations in gas"
1648 depends on THUMB2_KERNEL && MODULES
1649 default y
1650 help
1651 Various binutils versions can resolve Thumb-2 branches to
1652 locally-defined, preemptible global symbols as short-range "b.n"
1653 branch instructions.
1654
1655 This is a problem, because there's no guarantee the final
1656 destination of the symbol, or any candidate locations for a
1657 trampoline, are within range of the branch. For this reason, the
1658 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1659 relocation in modules at all, and it makes little sense to add
1660 support.
1661
1662 The symptom is that the kernel fails with an "unsupported
1663 relocation" error when loading some modules.
1664
1665 Until fixed tools are available, passing
1666 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1667 code which hits this problem, at the cost of a bit of extra runtime
1668 stack usage in some cases.
1669
1670 The problem is described in more detail at:
1671 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1672
1673 Only Thumb-2 kernels are affected.
1674
1675 Unless you are sure your tools don't have this problem, say Y.
1676
Catalin Marinas0becb082009-07-24 12:32:53 +01001677config ARM_ASM_UNIFIED
1678 bool
1679
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001680config AEABI
1681 bool "Use the ARM EABI to compile the kernel"
1682 help
1683 This option allows for the kernel to be compiled using the latest
1684 ARM ABI (aka EABI). This is only useful if you are using a user
1685 space environment that is also compiled with EABI.
1686
1687 Since there are major incompatibilities between the legacy ABI and
1688 EABI, especially with regard to structure member alignment, this
1689 option also changes the kernel syscall calling convention to
1690 disambiguate both ABIs and allow for backward compatibility support
1691 (selected with CONFIG_OABI_COMPAT).
1692
1693 To use this you need GCC version 4.0.0 or later.
1694
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001695config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001696 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001697 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001698 default y
1699 help
1700 This option preserves the old syscall interface along with the
1701 new (ARM EABI) one. It also provides a compatibility layer to
1702 intercept syscalls that have structure arguments which layout
1703 in memory differs between the legacy ABI and the new ARM EABI
1704 (only for non "thumb" binaries). This option adds a tiny
1705 overhead to all syscalls and produces a slightly larger kernel.
1706 If you know you'll be using only pure EABI user space then you
1707 can say N here. If this option is not selected and you attempt
1708 to execute a legacy ABI binary then the result will be
1709 UNPREDICTABLE (in fact it can be predicted that it won't work
1710 at all). If in doubt say Y.
1711
Mel Gormaneb335752009-05-13 17:34:48 +01001712config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001713 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001714
Russell King05944d72006-11-30 20:43:51 +00001715config ARCH_SPARSEMEM_ENABLE
1716 bool
1717
Russell King07a2f732008-10-01 21:39:58 +01001718config ARCH_SPARSEMEM_DEFAULT
1719 def_bool ARCH_SPARSEMEM_ENABLE
1720
Russell King05944d72006-11-30 20:43:51 +00001721config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001722 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001723
Will Deacon7b7bf492011-05-19 13:21:14 +01001724config HAVE_ARCH_PFN_VALID
1725 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1726
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001727config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001728 bool "High Memory Support"
1729 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001730 help
1731 The address space of ARM processors is only 4 Gigabytes large
1732 and it has to accommodate user address space, kernel address
1733 space as well as some memory mapped IO. That means that, if you
1734 have a large amount of physical memory and/or IO, not all of the
1735 memory can be "permanently mapped" by the kernel. The physical
1736 memory that is not permanently mapped is called "high memory".
1737
1738 Depending on the selected kernel/user memory split, minimum
1739 vmalloc space and actual amount of RAM, you may not need this
1740 option which should result in a slightly faster kernel.
1741
1742 If unsure, say n.
1743
Russell King65cec8e2009-08-17 20:02:06 +01001744config HIGHPTE
1745 bool "Allocate 2nd-level pagetables from highmem"
1746 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001747
Jamie Iles1b8873a2010-02-02 20:25:44 +01001748config HW_PERF_EVENTS
1749 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001750 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001751 default y
1752 help
1753 Enable hardware performance counter support for perf events. If
1754 disabled, perf events will use software events only.
1755
Dave Hansen3f22ab22005-06-23 00:07:43 -07001756source "mm/Kconfig"
1757
Magnus Dammc1b2d972010-07-05 10:00:11 +01001758config FORCE_MAX_ZONEORDER
1759 int "Maximum zone order" if ARCH_SHMOBILE
1760 range 11 64 if ARCH_SHMOBILE
1761 default "9" if SA1111
1762 default "11"
1763 help
1764 The kernel memory allocator divides physically contiguous memory
1765 blocks into "zones", where each zone is a power of two number of
1766 pages. This option selects the largest power of two that the kernel
1767 keeps in the memory allocator. If you need to allocate very large
1768 blocks of physically contiguous memory, then you may need to
1769 increase this value.
1770
1771 This config option is actually maximum order plus one. For example,
1772 a value of 11 means that the largest free memory block is 2^10 pages.
1773
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774config ALIGNMENT_TRAP
1775 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001776 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001778 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001779 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001780 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1782 address divisible by 4. On 32-bit ARM processors, these non-aligned
1783 fetch/store instructions will be emulated in software if you say
1784 here, which has a severe performance impact. This is necessary for
1785 correct operation of some network protocols. With an IP-only
1786 configuration it is safe to say N, otherwise say Y.
1787
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001788config UACCESS_WITH_MEMCPY
1789 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1790 depends on MMU && EXPERIMENTAL
1791 default y if CPU_FEROCEON
1792 help
1793 Implement faster copy_to_user and clear_user methods for CPU
1794 cores where a 8-word STM instruction give significantly higher
1795 memory write throughput than a sequence of individual 32bit stores.
1796
1797 A possible side effect is a slight increase in scheduling latency
1798 between threads sharing the same address space if they invoke
1799 such copy operations with large buffers.
1800
1801 However, if the CPU data cache is using a write-allocate mode,
1802 this option is unlikely to provide any performance gain.
1803
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001804config SECCOMP
1805 bool
1806 prompt "Enable seccomp to safely compute untrusted bytecode"
1807 ---help---
1808 This kernel feature is useful for number crunching applications
1809 that may need to compute untrusted bytecode during their
1810 execution. By using pipes or other transports made available to
1811 the process as file descriptors supporting the read/write
1812 syscalls, it's possible to isolate those applications in
1813 their own address space using seccomp. Once seccomp is
1814 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1815 and the task is only allowed to execute a few safe syscalls
1816 defined by each seccomp mode.
1817
Nicolas Pitrec743f382010-05-24 23:55:42 -04001818config CC_STACKPROTECTOR
1819 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001820 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001821 help
1822 This option turns on the -fstack-protector GCC feature. This
1823 feature puts, at the beginning of functions, a canary value on
1824 the stack just before the return address, and validates
1825 the value just before actually returning. Stack based buffer
1826 overflows (that need to overwrite this return address) now also
1827 overwrite the canary, which gets detected and the attack is then
1828 neutralized via a kernel panic.
1829 This feature requires gcc version 4.2 or above.
1830
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001831config DEPRECATED_PARAM_STRUCT
1832 bool "Provide old way to pass kernel parameters"
1833 help
1834 This was deprecated in 2001 and announced to live on for 5 years.
1835 Some old boot loaders still use this way.
1836
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001837config XEN_DOM0
1838 def_bool y
1839 depends on XEN
1840
1841config XEN
1842 bool "Xen guest support on ARM (EXPERIMENTAL)"
1843 depends on EXPERIMENTAL && ARM && OF
1844 help
1845 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1846
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847endmenu
1848
1849menu "Boot options"
1850
Grant Likely9eb8f672011-04-28 14:27:20 -06001851config USE_OF
1852 bool "Flattened Device Tree support"
1853 select OF
1854 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001855 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001856 help
1857 Include support for flattened device tree machine descriptions.
1858
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859# Compressed boot loader in ROM. Yes, we really want to ask about
1860# TEXT and BSS so we preserve their values in the config files.
1861config ZBOOT_ROM_TEXT
1862 hex "Compressed ROM boot loader base address"
1863 default "0"
1864 help
1865 The physical address at which the ROM-able zImage is to be
1866 placed in the target. Platforms which normally make use of
1867 ROM-able zImage formats normally set this to a suitable
1868 value in their defconfig file.
1869
1870 If ZBOOT_ROM is not enabled, this has no effect.
1871
1872config ZBOOT_ROM_BSS
1873 hex "Compressed ROM boot loader BSS address"
1874 default "0"
1875 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001876 The base address of an area of read/write memory in the target
1877 for the ROM-able zImage which must be available while the
1878 decompressor is running. It must be large enough to hold the
1879 entire decompressed kernel plus an additional 128 KiB.
1880 Platforms which normally make use of ROM-able zImage formats
1881 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882
1883 If ZBOOT_ROM is not enabled, this has no effect.
1884
1885config ZBOOT_ROM
1886 bool "Compressed boot loader in ROM/flash"
1887 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1888 help
1889 Say Y here if you intend to execute your compressed kernel image
1890 (zImage) directly from ROM or flash. If unsure, say N.
1891
Simon Horman090ab3f2011-04-26 06:29:53 +01001892choice
1893 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1894 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1895 default ZBOOT_ROM_NONE
1896 help
1897 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001898 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001899 kernel image to an MMC or SD card and boot the kernel straight
1900 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001901 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001902 rest the kernel image to RAM.
1903
1904config ZBOOT_ROM_NONE
1905 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1906 help
1907 Do not load image from SD or MMC
1908
Simon Hormanf45b1142011-01-11 04:01:08 +01001909config ZBOOT_ROM_MMCIF
1910 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001911 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001912 Load image from MMCIF hardware block.
1913
1914config ZBOOT_ROM_SH_MOBILE_SDHI
1915 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1916 help
1917 Load image from SDHI hardware block
1918
1919endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001920
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001921config ARM_APPENDED_DTB
1922 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1923 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1924 help
1925 With this option, the boot code will look for a device tree binary
1926 (DTB) appended to zImage
1927 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1928
1929 This is meant as a backward compatibility convenience for those
1930 systems with a bootloader that can't be upgraded to accommodate
1931 the documented boot protocol using a device tree.
1932
1933 Beware that there is very little in terms of protection against
1934 this option being confused by leftover garbage in memory that might
1935 look like a DTB header after a reboot if no actual DTB is appended
1936 to zImage. Do not leave this option active in a production kernel
1937 if you don't intend to always append a DTB. Proper passing of the
1938 location into r2 of a bootloader provided DTB is always preferable
1939 to this option.
1940
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001941config ARM_ATAG_DTB_COMPAT
1942 bool "Supplement the appended DTB with traditional ATAG information"
1943 depends on ARM_APPENDED_DTB
1944 help
1945 Some old bootloaders can't be updated to a DTB capable one, yet
1946 they provide ATAGs with memory configuration, the ramdisk address,
1947 the kernel cmdline string, etc. Such information is dynamically
1948 provided by the bootloader and can't always be stored in a static
1949 DTB. To allow a device tree enabled kernel to be used with such
1950 bootloaders, this option allows zImage to extract the information
1951 from the ATAG list and store it at run time into the appended DTB.
1952
Genoud Richardd0f34a12012-06-26 16:37:59 +01001953choice
1954 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1955 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1956
1957config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1958 bool "Use bootloader kernel arguments if available"
1959 help
1960 Uses the command-line options passed by the boot loader instead of
1961 the device tree bootargs property. If the boot loader doesn't provide
1962 any, the device tree bootargs property will be used.
1963
1964config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1965 bool "Extend with bootloader kernel arguments"
1966 help
1967 The command-line arguments provided by the boot loader will be
1968 appended to the the device tree bootargs property.
1969
1970endchoice
1971
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972config CMDLINE
1973 string "Default kernel command string"
1974 default ""
1975 help
1976 On some architectures (EBSA110 and CATS), there is currently no way
1977 for the boot loader to pass arguments to the kernel. For these
1978 architectures, you should supply some command-line options at build
1979 time by entering them here. As a minimum, you should specify the
1980 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1981
Victor Boivie4394c122011-05-04 17:07:55 +01001982choice
1983 prompt "Kernel command line type" if CMDLINE != ""
1984 default CMDLINE_FROM_BOOTLOADER
1985
1986config CMDLINE_FROM_BOOTLOADER
1987 bool "Use bootloader kernel arguments if available"
1988 help
1989 Uses the command-line options passed by the boot loader. If
1990 the boot loader doesn't provide any, the default kernel command
1991 string provided in CMDLINE will be used.
1992
1993config CMDLINE_EXTEND
1994 bool "Extend bootloader kernel arguments"
1995 help
1996 The command-line arguments provided by the boot loader will be
1997 appended to the default kernel command string.
1998
Alexander Holler92d20402010-02-16 19:04:53 +01001999config CMDLINE_FORCE
2000 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002001 help
2002 Always use the default kernel command string, even if the boot
2003 loader passes other arguments to the kernel.
2004 This is useful if you cannot or don't want to change the
2005 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002006endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002007
Linus Torvalds1da177e2005-04-16 15:20:36 -07002008config XIP_KERNEL
2009 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002010 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002011 help
2012 Execute-In-Place allows the kernel to run from non-volatile storage
2013 directly addressable by the CPU, such as NOR flash. This saves RAM
2014 space since the text section of the kernel is not loaded from flash
2015 to RAM. Read-write sections, such as the data section and stack,
2016 are still copied to RAM. The XIP kernel is not compressed since
2017 it has to run directly from flash, so it will take more space to
2018 store it. The flash address used to link the kernel object files,
2019 and for storing it, is configuration dependent. Therefore, if you
2020 say Y here, you must know the proper physical address where to
2021 store the kernel image depending on your own flash memory usage.
2022
2023 Also note that the make target becomes "make xipImage" rather than
2024 "make zImage" or "make Image". The final kernel binary to put in
2025 ROM memory will be arch/arm/boot/xipImage.
2026
2027 If unsure, say N.
2028
2029config XIP_PHYS_ADDR
2030 hex "XIP Kernel Physical Location"
2031 depends on XIP_KERNEL
2032 default "0x00080000"
2033 help
2034 This is the physical address in your flash memory the kernel will
2035 be linked for and stored to. This address is dependent on your
2036 own flash usage.
2037
Richard Purdiec587e4a2007-02-06 21:29:00 +01002038config KEXEC
2039 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002040 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002041 help
2042 kexec is a system call that implements the ability to shutdown your
2043 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002044 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002045 you can start any kernel with it, not just Linux.
2046
2047 It is an ongoing process to be certain the hardware in a machine
2048 is properly shutdown, so do not be surprised if this code does not
2049 initially work for you. It may help to enable device hotplugging
2050 support.
2051
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002052config ATAGS_PROC
2053 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002054 depends on KEXEC
2055 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002056 help
2057 Should the atags used to boot the kernel be exported in an "atags"
2058 file in procfs. Useful with kexec.
2059
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002060config CRASH_DUMP
2061 bool "Build kdump crash kernel (EXPERIMENTAL)"
2062 depends on EXPERIMENTAL
2063 help
2064 Generate crash dump after being started by kexec. This should
2065 be normally only set in special crash dump kernels which are
2066 loaded in the main kernel with kexec-tools into a specially
2067 reserved region and then later executed after a crash by
2068 kdump/kexec. The crash dump kernel must be compiled to a
2069 memory address not used by the main kernel
2070
2071 For more details see Documentation/kdump/kdump.txt
2072
Eric Miaoe69edc792010-07-05 15:56:50 +02002073config AUTO_ZRELADDR
2074 bool "Auto calculation of the decompressed kernel image address"
2075 depends on !ZBOOT_ROM && !ARCH_U300
2076 help
2077 ZRELADDR is the physical address where the decompressed kernel
2078 image will be placed. If AUTO_ZRELADDR is selected, the address
2079 will be determined at run-time by masking the current IP with
2080 0xf8000000. This assumes the zImage being placed in the first 128MB
2081 from start of memory.
2082
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083endmenu
2084
Russell Kingac9d7ef2008-08-18 17:26:00 +01002085menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086
Ben Dooks89c52ed2009-07-30 23:23:24 +01002087if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088
2089source "drivers/cpufreq/Kconfig"
2090
Yong Shen64f102b2010-10-21 21:18:59 +08002091config CPU_FREQ_IMX
2092 tristate "CPUfreq driver for i.MX CPUs"
2093 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002094 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002095 help
2096 This enables the CPUfreq driver for i.MX CPUs.
2097
Linus Torvalds1da177e2005-04-16 15:20:36 -07002098config CPU_FREQ_SA1100
2099 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100
2101config CPU_FREQ_SA1110
2102 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103
2104config CPU_FREQ_INTEGRATOR
2105 tristate "CPUfreq driver for ARM Integrator CPUs"
2106 depends on ARCH_INTEGRATOR && CPU_FREQ
2107 default y
2108 help
2109 This enables the CPUfreq driver for ARM Integrator CPUs.
2110
2111 For details, take a look at <file:Documentation/cpu-freq>.
2112
2113 If in doubt, say Y.
2114
Russell King9e2697f2007-12-14 13:30:14 +00002115config CPU_FREQ_PXA
2116 bool
2117 depends on CPU_FREQ && ARCH_PXA && PXA25x
2118 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002119 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002120 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2121
Ben Dooks9d56c022009-07-30 23:23:25 +01002122config CPU_FREQ_S3C
2123 bool
2124 help
2125 Internal configuration node for common cpufreq on Samsung SoC
2126
2127config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002128 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002129 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002130 select CPU_FREQ_S3C
2131 help
2132 This enables the CPUfreq driver for the Samsung S3C24XX family
2133 of CPUs.
2134
2135 For details, take a look at <file:Documentation/cpu-freq>.
2136
2137 If in doubt, say N.
2138
2139config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002140 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002141 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2142 help
2143 Compile in support for changing the PLL frequency from the
2144 S3C24XX series CPUfreq driver. The PLL takes time to settle
2145 after a frequency change, so by default it is not enabled.
2146
2147 This also means that the PLL tables for the selected CPU(s) will
2148 be built which may increase the size of the kernel image.
2149
2150config CPU_FREQ_S3C24XX_DEBUG
2151 bool "Debug CPUfreq Samsung driver core"
2152 depends on CPU_FREQ_S3C24XX
2153 help
2154 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2155
2156config CPU_FREQ_S3C24XX_IODEBUG
2157 bool "Debug CPUfreq Samsung driver IO timing"
2158 depends on CPU_FREQ_S3C24XX
2159 help
2160 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2161
Ben Dookse6d197a2009-07-30 23:23:42 +01002162config CPU_FREQ_S3C24XX_DEBUGFS
2163 bool "Export debugfs for CPUFreq"
2164 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2165 help
2166 Export status information via debugfs.
2167
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168endif
2169
Russell Kingac9d7ef2008-08-18 17:26:00 +01002170source "drivers/cpuidle/Kconfig"
2171
2172endmenu
2173
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174menu "Floating point emulation"
2175
2176comment "At least one emulation must be selected"
2177
2178config FPE_NWFPE
2179 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002180 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002181 ---help---
2182 Say Y to include the NWFPE floating point emulator in the kernel.
2183 This is necessary to run most binaries. Linux does not currently
2184 support floating point hardware so you need to say Y here even if
2185 your machine has an FPA or floating point co-processor podule.
2186
2187 You may say N here if you are going to load the Acorn FPEmulator
2188 early in the bootup.
2189
2190config FPE_NWFPE_XP
2191 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002192 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 help
2194 Say Y to include 80-bit support in the kernel floating-point
2195 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2196 Note that gcc does not generate 80-bit operations by default,
2197 so in most cases this option only enlarges the size of the
2198 floating point emulator without any good reason.
2199
2200 You almost surely want to say N here.
2201
2202config FPE_FASTFPE
2203 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002204 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205 ---help---
2206 Say Y here to include the FAST floating point emulator in the kernel.
2207 This is an experimental much faster emulator which now also has full
2208 precision for the mantissa. It does not support any exceptions.
2209 It is very simple, and approximately 3-6 times faster than NWFPE.
2210
2211 It should be sufficient for most programs. It may be not suitable
2212 for scientific calculations, but you have to check this for yourself.
2213 If you do not feel you need a faster FP emulation you should better
2214 choose NWFPE.
2215
2216config VFP
2217 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002218 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219 help
2220 Say Y to include VFP support code in the kernel. This is needed
2221 if your hardware includes a VFP unit.
2222
2223 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2224 release notes and additional status information.
2225
2226 Say N if your target does not have VFP hardware.
2227
Catalin Marinas25ebee02007-09-25 15:22:24 +01002228config VFPv3
2229 bool
2230 depends on VFP
2231 default y if CPU_V7
2232
Catalin Marinasb5872db2008-01-10 19:16:17 +01002233config NEON
2234 bool "Advanced SIMD (NEON) Extension support"
2235 depends on VFPv3 && CPU_V7
2236 help
2237 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2238 Extension.
2239
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240endmenu
2241
2242menu "Userspace binary formats"
2243
2244source "fs/Kconfig.binfmt"
2245
2246config ARTHUR
2247 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002248 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249 help
2250 Say Y here to include the kernel code necessary if you want to run
2251 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2252 experimental; if this sounds frightening, say N and sleep in peace.
2253 You can also say M here to compile this support as a module (which
2254 will be called arthur).
2255
2256endmenu
2257
2258menu "Power management options"
2259
Russell Kingeceab4a2005-11-15 11:31:41 +00002260source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002261
Johannes Bergf4cb5702007-12-08 02:14:00 +01002262config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002263 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002264 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002265 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002266 def_bool y
2267
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002268config ARM_CPU_SUSPEND
2269 def_bool PM_SLEEP
2270
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271endmenu
2272
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002273source "net/Kconfig"
2274
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002275source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002276
2277source "fs/Kconfig"
2278
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279source "arch/arm/Kconfig.debug"
2280
2281source "security/Kconfig"
2282
2283source "crypto/Kconfig"
2284
2285source "lib/Kconfig"