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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 Szyprowskic7909502011-12-29 13:09:51 +01009 select HAVE_DMA_CONTIGUOUS if (CPU_V6 || CPU_V6K || CPU_V7)
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
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020041 select GENERIC_IRQ_PROBE
Will Deaconc1d7e012012-07-30 14:42:46 -070042 select ARCH_WANT_IPC_PARSE_VERSION
Thomas Gleixnerd4aa8b12012-05-21 11:06:17 +020043 select HARDIRQS_SW_RESEND
Santosh Shilimkar1fb902632011-09-10 11:30:28 +053044 select CPU_PM if (SUSPEND || CPU_IDLE)
Michael S. Tsirkine5bfb722011-11-24 20:57:23 +020045 select GENERIC_PCI_IOMAP
Sam Ravnborge47b65b2012-05-21 20:45:37 +020046 select HAVE_BPF_JIT
Thomas Gleixner84ec6d52012-04-20 13:05:50 +000047 select GENERIC_SMP_IDLE_THREAD
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000048 select KTIME_SCALAR
49 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Will Deacon8c56cc82012-07-06 15:45:39 +010050 select GENERIC_STRNCPY_FROM_USER
51 select GENERIC_STRNLEN_USER
Will Deaconb9a50f72012-07-06 15:46:08 +010052 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 help
54 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000055 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000057 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 Europe. There is an ARM Linux project with a web page at
59 <http://www.arm.linux.org.uk/>.
60
Russell King74facff2011-06-02 11:16:22 +010061config ARM_HAS_SG_CHAIN
62 bool
63
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020064config NEED_SG_DMA_LENGTH
65 bool
66
67config ARM_DMA_USE_IOMMU
68 select NEED_SG_DMA_LENGTH
69 select ARM_HAS_SG_CHAIN
70 bool
71
Russell King1a189b92008-04-13 21:41:55 +010072config HAVE_PWM
73 bool
74
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +010075config MIGHT_HAVE_PCI
76 bool
77
Ralf Baechle75e71532007-02-09 17:08:58 +000078config SYS_SUPPORTS_APM_EMULATION
79 bool
80
David Brownell0a938b92007-03-05 00:30:18 -080081config GENERIC_GPIO
82 bool
David Brownell0a938b92007-03-05 00:30:18 -080083
Linus Walleijbc581772009-09-15 17:30:37 +010084config HAVE_TCM
85 bool
86 select GENERIC_ALLOCATOR
87
Russell Kinge119bff2010-01-10 17:23:29 +000088config HAVE_PROC_CPU
89 bool
90
Al Viro5ea81762007-02-11 15:41:31 +000091config NO_IOPORT
92 bool
Al Viro5ea81762007-02-11 15:41:31 +000093
Linus Torvalds1da177e2005-04-16 15:20:36 -070094config EISA
95 bool
96 ---help---
97 The Extended Industry Standard Architecture (EISA) bus was
98 developed as an open alternative to the IBM MicroChannel bus.
99
100 The EISA bus provided some of the features of the IBM MicroChannel
101 bus while maintaining backward compatibility with cards made for
102 the older ISA bus. The EISA bus saw limited use between 1988 and
103 1995 when it was made obsolete by the PCI bus.
104
105 Say Y here if you are building a kernel for an EISA-based machine.
106
107 Otherwise, say N.
108
109config SBUS
110 bool
111
Russell Kingf16fb1e2007-04-28 09:59:37 +0100112config STACKTRACE_SUPPORT
113 bool
114 default y
115
Nicolas Pitref76e9152008-04-24 01:31:46 -0400116config HAVE_LATENCYTOP_SUPPORT
117 bool
118 depends on !SMP
119 default y
120
Russell Kingf16fb1e2007-04-28 09:59:37 +0100121config LOCKDEP_SUPPORT
122 bool
123 default y
124
Russell King7ad1bcb2006-08-27 12:07:02 +0100125config TRACE_IRQFLAGS_SUPPORT
126 bool
127 default y
128
Nick Piggin95c354f2008-01-30 13:31:20 +0100129config GENERIC_LOCKBREAK
130 bool
131 default y
132 depends on SMP && PREEMPT
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config RWSEM_GENERIC_SPINLOCK
135 bool
136 default y
137
138config RWSEM_XCHGADD_ALGORITHM
139 bool
140
David Howellsf0d1b0b2006-12-08 02:37:49 -0800141config ARCH_HAS_ILOG2_U32
142 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800143
144config ARCH_HAS_ILOG2_U64
145 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800146
Ben Dooks89c52ed2009-07-30 23:23:24 +0100147config ARCH_HAS_CPUFREQ
148 bool
149 help
150 Internal node to signify that the ARCH has CPUFREQ support
151 and that the relevant menu configurations are displayed for
152 it.
153
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800154config GENERIC_HWEIGHT
155 bool
156 default y
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config GENERIC_CALIBRATE_DELAY
159 bool
160 default y
161
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100162config ARCH_MAY_HAVE_PC_FDC
163 bool
164
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800165config ZONE_DMA
166 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800167
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800168config NEED_DMA_MAP_STATE
169 def_bool y
170
Rob Herring58af4a22012-03-20 14:33:01 -0500171config ARCH_HAS_DMA_SET_COHERENT_MASK
172 bool
173
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174config GENERIC_ISA_DMA
175 bool
176
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177config FIQ
178 bool
179
Rob Herring13a50452012-02-07 09:28:22 -0600180config NEED_RET_TO_USER
181 bool
182
Al Viro034d2f52005-12-19 16:27:59 -0500183config ARCH_MTD_XIP
184 bool
185
Hyok S. Choic760fc12006-03-27 15:18:50 +0100186config VECTORS_BASE
187 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900188 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100189 default DRAM_BASE if REMAP_VECTORS_TO_RAM
190 default 0x00000000
191 help
192 The base address of exception vectors.
193
Russell Kingdc21af92011-01-04 19:09:43 +0000194config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100195 bool "Patch physical to virtual translations at runtime" if EMBEDDED
196 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100197 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000198 depends on !ARCH_REALVIEW || !SPARSEMEM
199 help
Russell King111e9a52011-05-12 10:02:42 +0100200 Patch phys-to-virt and virt-to-phys translation functions at
201 boot and module load time according to the position of the
202 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000203
Russell King111e9a52011-05-12 10:02:42 +0100204 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100205 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000206
Russell Kingc1beced2011-08-10 10:23:45 +0100207 Only disable this option if you know that you do not require
208 this feature (eg, building a kernel for a single machine) and
209 you need to shrink the kernel to the minimal size.
210
Rob Herringc334bc12012-03-04 22:03:33 -0600211config NEED_MACH_IO_H
212 bool
213 help
214 Select this when mach/io.h is required to provide special
215 definitions for this platform. The need for mach/io.h should
216 be avoided when possible.
217
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400218config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400219 bool
Russell King111e9a52011-05-12 10:02:42 +0100220 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400221 Select this when mach/memory.h is required to provide special
222 definitions for this platform. The need for mach/memory.h should
223 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400224
225config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100226 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400227 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100228 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400229 help
230 Please provide the physical address corresponding to the
231 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000232
Simon Glass87e040b2011-08-16 23:44:26 +0100233config GENERIC_BUG
234 def_bool y
235 depends on BUG
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237source "init/Kconfig"
238
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700239source "kernel/Kconfig.freezer"
240
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241menu "System Type"
242
Hyok S. Choi3c427972009-07-24 12:35:00 +0100243config MMU
244 bool "MMU-based Paged Memory Management Support"
245 default y
246 help
247 Select if you want MMU-based virtualised addressing space
248 support by paged memory management. If unsure, say 'Y'.
249
Russell Kingccf50e22010-03-15 19:03:06 +0000250#
251# The "ARM system type" choice list is ordered alphabetically by option
252# text. Please add new entries in the option alphabetic order.
253#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254choice
255 prompt "ARM system type"
Catalin Marinas6a0e2432006-03-07 14:42:27 +0000256 default ARCH_VERSATILE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257
Dinh Nguyen66314222012-07-18 16:07:18 -0600258config ARCH_SOCFPGA
259 bool "Altera SOCFPGA family"
260 select ARCH_WANT_OPTIONAL_GPIOLIB
261 select ARM_AMBA
262 select ARM_GIC
263 select CACHE_L2X0
264 select CLKDEV_LOOKUP
265 select COMMON_CLK
266 select CPU_V7
267 select DW_APB_TIMER
268 select DW_APB_TIMER_OF
269 select GENERIC_CLOCKEVENTS
270 select GPIO_PL061 if GPIOLIB
271 select HAVE_ARM_SCU
272 select SPARSE_IRQ
273 select USE_OF
274 help
275 This enables support for Altera SOCFPGA Cyclone V platform
276
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100277config ARCH_INTEGRATOR
278 bool "ARM Ltd. Integrator family"
279 select ARM_AMBA
Ben Dooks89c52ed2009-07-30 23:23:24 +0100280 select ARCH_HAS_CPUFREQ
Linus Walleija6131632012-06-11 17:33:12 +0200281 select COMMON_CLK
282 select CLK_VERSATILE
Linus Walleij9904f792011-12-09 10:29:23 +0100283 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000284 select ICST
Russell King13edd862010-01-15 21:49:23 +0000285 select GENERIC_CLOCKEVENTS
Russell Kingf4b8b312010-01-14 12:48:06 +0000286 select PLAT_VERSATILE
Russell Kingc41b16f2011-01-19 15:32:15 +0000287 select PLAT_VERSATILE_FPGA_IRQ
Rob Herringc334bc12012-03-04 22:03:33 -0600288 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400289 select NEED_MACH_MEMORY_H
Linus Walleij695436e2012-02-26 10:46:48 +0100290 select SPARSE_IRQ
Linus Walleij3108e6a2012-04-28 14:33:47 +0100291 select MULTI_IRQ_HANDLER
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100292 help
293 Support for ARM's Integrator platform.
294
295config ARCH_REALVIEW
296 bool "ARM Ltd. RealView family"
297 select ARM_AMBA
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100298 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900299 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000300 select ICST
Catalin Marinasae30cea2008-02-04 17:26:55 +0100301 select GENERIC_CLOCKEVENTS
Russell Kingeb7fffa2009-07-05 22:41:31 +0100302 select ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingf4b8b312010-01-14 12:48:06 +0000303 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100304 select PLAT_VERSATILE_CLOCK
Russell King3cb5ee42011-01-18 20:13:20 +0000305 select PLAT_VERSATILE_CLCD
Russell Kinge3887712010-01-14 13:30:16 +0000306 select ARM_TIMER_SP804
Colin Tuckleyb56ba8a2010-02-24 15:23:10 +0100307 select GPIO_PL061 if GPIOLIB
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400308 select NEED_MACH_MEMORY_H
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100309 help
310 This enables support for ARM Ltd RealView boards.
311
312config ARCH_VERSATILE
313 bool "ARM Ltd. Versatile family"
314 select ARM_AMBA
315 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100316 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900317 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000318 select ICST
Kevin Hilman89df1272007-03-08 20:30:38 +0100319 select GENERIC_CLOCKEVENTS
Russell Kingbbeddc42009-07-05 22:43:01 +0100320 select ARCH_WANT_OPTIONAL_GPIOLIB
Arnd Bergmann9b0f7e32012-06-11 09:03:58 -0500321 select NEED_MACH_IO_H if PCI
Russell Kingf4b8b312010-01-14 12:48:06 +0000322 select PLAT_VERSATILE
Pawel Moll56a34b02012-07-05 11:35:33 +0100323 select PLAT_VERSATILE_CLOCK
Russell King3414ba82011-01-18 20:12:10 +0000324 select PLAT_VERSATILE_CLCD
Russell Kingc41b16f2011-01-19 15:32:15 +0000325 select PLAT_VERSATILE_FPGA_IRQ
Russell Kinge3887712010-01-14 13:30:16 +0000326 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 help
328 This enables support for ARM Ltd Versatile board.
329
Russell Kingceade892010-02-11 21:44:53 +0000330config ARCH_VEXPRESS
331 bool "ARM Ltd. Versatile Express family"
332 select ARCH_WANT_OPTIONAL_GPIOLIB
333 select ARM_AMBA
334 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100335 select CLKDEV_LOOKUP
Pawel Molld1b8a772012-07-13 11:48:16 +0100336 select COMMON_CLK
Russell Kingceade892010-02-11 21:44:53 +0000337 select GENERIC_CLOCKEVENTS
Russell Kingceade892010-02-11 21:44:53 +0000338 select HAVE_CLK
Nick Bowler95c34f82011-01-21 15:51:06 +0100339 select HAVE_PATA_PLATFORM
Russell Kingceade892010-02-11 21:44:53 +0000340 select ICST
Russell Kingba81f502012-02-15 11:55:22 +0000341 select NO_IOPORT
Russell Kingceade892010-02-11 21:44:53 +0000342 select PLAT_VERSATILE
Russell King0fb44b92011-01-18 20:13:51 +0000343 select PLAT_VERSATILE_CLCD
Pawel Mollb2a54ff2012-07-09 11:33:47 +0100344 select REGULATOR_FIXED_VOLTAGE if REGULATOR
Russell Kingceade892010-02-11 21:44:53 +0000345 help
346 This enables support for the ARM Ltd Versatile Express boards.
347
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100348config ARCH_AT91
349 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100350 select ARCH_REQUIRE_GPIOLIB
David Brownell93686ae2008-07-28 15:46:22 -0700351 select HAVE_CLK
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100352 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100353 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500354 select NEED_MACH_IO_H if PCCARD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100355 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100356 This enables support for systems based on Atmel
357 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358
Russell Kingccf50e22010-03-15 19:03:06 +0000359config ARCH_BCMRING
360 bool "Broadcom BCMRING"
361 depends on MMU
362 select CPU_V6
363 select ARM_AMBA
Russell King82d63732011-05-12 13:43:39 +0100364 select ARM_TIMER_SP804
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100365 select CLKDEV_LOOKUP
Russell Kingccf50e22010-03-15 19:03:06 +0000366 select GENERIC_CLOCKEVENTS
367 select ARCH_WANT_OPTIONAL_GPIOLIB
368 help
369 Support for Broadcom's BCMRing platform.
370
Rob Herring220e6cf2011-06-07 10:02:55 -0500371config ARCH_HIGHBANK
372 bool "Calxeda Highbank-based"
373 select ARCH_WANT_OPTIONAL_GPIOLIB
374 select ARM_AMBA
375 select ARM_GIC
376 select ARM_TIMER_SP804
Dave Martin22d80372011-12-12 16:17:34 +0000377 select CACHE_L2X0
Rob Herring220e6cf2011-06-07 10:02:55 -0500378 select CLKDEV_LOOKUP
Rob Herring8d4d9f52012-03-13 18:19:19 -0500379 select COMMON_CLK
Rob Herring220e6cf2011-06-07 10:02:55 -0500380 select CPU_V7
381 select GENERIC_CLOCKEVENTS
382 select HAVE_ARM_SCU
Dave Martin3b556582011-12-07 15:38:04 +0000383 select HAVE_SMP
Rob Herringfdfa64a2012-01-03 14:44:31 -0600384 select SPARSE_IRQ
Rob Herring220e6cf2011-06-07 10:02:55 -0500385 select USE_OF
386 help
387 Support for the Calxeda Highbank SoC based boards.
388
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389config ARCH_CLPS711X
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400390 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000391 select CPU_ARM720T
John Stultz5cfc8ee2010-03-24 00:22:36 +0000392 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400393 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000394 help
Alexander Shiyan0e2fce52012-05-14 21:46:10 +0400395 Support for Cirrus Logic 711x/721x/731x based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300397config ARCH_CNS3XXX
398 bool "Cavium Networks CNS3XXX family"
Imre Kaloz00d27112011-07-07 12:19:09 +0200399 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300400 select GENERIC_CLOCKEVENTS
401 select ARM_GIC
Dave Martince5ea9f2011-11-29 15:56:19 +0000402 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100403 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400404 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300405 help
406 Support for Cavium Networks CNS3XXX platform.
407
Russell King788c9702009-04-26 14:21:59 +0100408config ARCH_GEMINI
409 bool "Cortina Systems Gemini"
410 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100411 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000412 select ARCH_USES_GETTIMEOFFSET
Russell King788c9702009-04-26 14:21:59 +0100413 help
414 Support for the Cortina Systems Gemini family SoCs
415
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200416config ARCH_PRIMA2
417 bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
418 select CPU_V7
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200419 select NO_IOPORT
Arnd Bergmannf6387092012-07-04 14:33:01 +0000420 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200421 select GENERIC_CLOCKEVENTS
422 select CLKDEV_LOOKUP
423 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000424 select MIGHT_HAVE_CACHE_L2X0
Barry Songcbd8d842012-05-15 10:35:46 +0800425 select PINCTRL
426 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200427 select USE_OF
428 select ZONE_DMA
429 help
430 Support for CSR SiRFSoC ARM Cortex A9 Platform
431
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432config ARCH_EBSA110
433 bool "EBSA-110"
Russell Kingc7508152008-10-26 10:55:14 +0000434 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100435 select ISA
Russell Kingc5eb2a22007-03-03 11:54:19 +0000436 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000437 select ARCH_USES_GETTIMEOFFSET
Rob Herringc334bc12012-03-04 22:03:33 -0600438 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400439 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 help
441 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000442 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 Ethernet interface, two PCMCIA sockets, two serial ports and a
444 parallel port.
445
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000446config ARCH_EP93XX
447 bool "EP93xx-based"
Russell Kingc7508152008-10-26 10:55:14 +0000448 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000449 select ARM_AMBA
450 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100451 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700452 select ARCH_REQUIRE_GPIOLIB
Mel Gormaneb335752009-05-13 17:34:48 +0100453 select ARCH_HAS_HOLES_MEMORYMODEL
John Stultz5cfc8ee2010-03-24 00:22:36 +0000454 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100455 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000456 help
457 This enables support for the Cirrus EP93xx series of CPUs.
458
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459config ARCH_FOOTBRIDGE
460 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000461 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000463 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200464 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600465 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400466 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
468 Support for systems based on the DC21285 companion chip
469 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470
Russell King788c9702009-04-26 14:21:59 +0100471config ARCH_MXC
472 bool "Freescale MXC/iMX-based"
Russell King788c9702009-04-26 14:21:59 +0100473 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100474 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100475 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100476 select CLKSRC_MMIO
Shawn Guo8b6c44f2011-06-07 13:59:14 +0800477 select GENERIC_IRQ_CHIP
Sascha Hauerffa2ea32011-09-20 14:31:24 +0200478 select MULTI_IRQ_HANDLER
Shawn Guo8842a9e2012-06-14 11:16:14 +0800479 select SPARSE_IRQ
Uwe Kleine-König3e62af82012-07-06 09:47:20 +0200480 select USE_OF
Russell King788c9702009-04-26 14:21:59 +0100481 help
482 Support for Freescale MXC/iMX-based family of processors
483
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800484config ARCH_MXS
485 bool "Freescale MXS-based"
486 select GENERIC_CLOCKEVENTS
487 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100488 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100489 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800490 select COMMON_CLK
Shawn Guo6abda3e2011-12-20 16:12:34 +0800491 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800492 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800493 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800494 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800495 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800496 help
497 Support for Freescale MXS-based family of processors
498
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100499config ARCH_NETX
500 bool "Hilscher NetX based"
Russell King234b6ced2011-05-08 14:09:47 +0100501 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000502 select CPU_ARM926T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100503 select ARM_VIC
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100504 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000505 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100506 This enables support for systems based on the Hilscher NetX Soc
507
508config ARCH_H720X
509 bool "Hynix HMS720x-based"
Russell Kingc7508152008-10-26 10:55:14 +0000510 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100511 select ISA_DMA_API
John Stultz5cfc8ee2010-03-24 00:22:36 +0000512 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100513 help
514 This enables support for systems based on the Hynix HMS720x
515
Russell King3b938be2007-05-12 11:25:44 +0100516config ARCH_IOP13XX
517 bool "IOP13xx-based"
518 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000519 select CPU_XSC3
Russell King3b938be2007-05-12 11:25:44 +0100520 select PLAT_IOP
521 select PCI
522 select ARCH_SUPPORTS_MSI
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +0100523 select VMSPLIT_1G
Rob Herringc334bc12012-03-04 22:03:33 -0600524 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400525 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600526 select NEED_RET_TO_USER
Russell King3b938be2007-05-12 11:25:44 +0100527 help
528 Support for Intel's IOP13XX (XScale) family of processors.
529
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100530config ARCH_IOP32X
531 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100532 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000533 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600534 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600535 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100536 select PLAT_IOP
Russell Kingf7e68bb2005-05-05 14:49:01 +0100537 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100538 select ARCH_REQUIRE_GPIOLIB
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000539 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100540 Support for Intel's 80219 and IOP32X (XScale) family of
541 processors.
542
543config ARCH_IOP33X
544 bool "IOP33x-based"
545 depends on MMU
Russell Kingc7508152008-10-26 10:55:14 +0000546 select CPU_XSCALE
Rob Herringc334bc12012-03-04 22:03:33 -0600547 select NEED_MACH_IO_H
Rob Herring13a50452012-02-07 09:28:22 -0600548 select NEED_RET_TO_USER
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100549 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100550 select PCI
Russell Kingbb2b1802008-07-26 15:36:03 +0100551 select ARCH_REQUIRE_GPIOLIB
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100552 help
553 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554
Russell King3b938be2007-05-12 11:25:44 +0100555config ARCH_IXP4XX
556 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100557 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500558 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell King234b6ced2011-05-08 14:09:47 +0100559 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000560 select CPU_XSCALE
Richard Cochran9dde0ae2012-05-23 18:19:51 +0200561 select ARCH_REQUIRE_GPIOLIB
Russell King3b938be2007-05-12 11:25:44 +0100562 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100563 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600564 select NEED_MACH_IO_H
Russell King485bdde2008-10-17 14:00:43 +0100565 select DMABOUNCE if PCI
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100566 help
Russell King3b938be2007-05-12 11:25:44 +0100567 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100568
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200569config ARCH_MVEBU
570 bool "Marvell SOCs with Device Tree support"
571 select GENERIC_CLOCKEVENTS
572 select MULTI_IRQ_HANDLER
573 select SPARSE_IRQ
574 select CLKSRC_MMIO
575 select GENERIC_IRQ_CHIP
576 select IRQ_DOMAIN
577 select COMMON_CLK
578 help
579 Support for the Marvell SoC Family with device tree support
580
Saeed Bisharaedabd382009-08-06 15:12:43 +0300581config ARCH_DOVE
582 bool "Marvell Dove"
Konstantin Porotchkin7b769bb2011-04-07 13:49:41 +0300583 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300584 select PCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300585 select ARCH_REQUIRE_GPIOLIB
Saeed Bisharaedabd382009-08-06 15:12:43 +0300586 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600587 select NEED_MACH_IO_H
Saeed Bisharaedabd382009-08-06 15:12:43 +0300588 select PLAT_ORION
589 help
590 Support for the Marvell Dove SoC 88AP510
591
Saeed Bishara651c74c2008-06-22 22:45:06 +0200592config ARCH_KIRKWOOD
593 bool "Marvell Kirkwood"
Russell Kingc7508152008-10-26 10:55:14 +0000594 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200595 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700596 select ARCH_REQUIRE_GPIOLIB
Saeed Bishara651c74c2008-06-22 22:45:06 +0200597 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600598 select NEED_MACH_IO_H
Saeed Bishara651c74c2008-06-22 22:45:06 +0200599 select PLAT_ORION
600 help
601 Support for the following Marvell Kirkwood series SoCs:
602 88F6180, 88F6192 and 88F6281.
603
Kevin Wells40805942010-07-27 08:49:04 -0700604config ARCH_LPC32XX
605 bool "NXP LPC32XX"
Russell King234b6ced2011-05-08 14:09:47 +0100606 select CLKSRC_MMIO
Kevin Wells40805942010-07-27 08:49:04 -0700607 select CPU_ARM926T
608 select ARCH_REQUIRE_GPIOLIB
609 select HAVE_IDE
610 select ARM_AMBA
611 select USB_ARCH_HAS_OHCI
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
Kevin Wells40805942010-07-27 08:49:04 -0700613 select GENERIC_CLOCKEVENTS
Roland Stiggef5c42272012-04-22 12:01:19 +0200614 select USE_OF
Alexandre Pereira da Silvac49a1832012-07-20 14:01:51 +0200615 select HAVE_PWM
Kevin Wells40805942010-07-27 08:49:04 -0700616 help
617 Support for the NXP LPC32XX family of processors
618
Russell King788c9702009-04-26 14:21:59 +0100619config ARCH_MV78XX0
620 bool "Marvell MV78xx0"
621 select CPU_FEROCEON
622 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700623 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100624 select GENERIC_CLOCKEVENTS
Rob Herringc334bc12012-03-04 22:03:33 -0600625 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100626 select PLAT_ORION
627 help
628 Support for the following Marvell MV78xx0 series SoCs:
629 MV781x0, MV782x0.
630
631config ARCH_ORION5X
632 bool "Marvell Orion"
633 depends on MMU
634 select CPU_FEROCEON
635 select PCI
Erik Benadaa8865652009-05-28 17:08:55 -0700636 select ARCH_REQUIRE_GPIOLIB
Russell King788c9702009-04-26 14:21:59 +0100637 select GENERIC_CLOCKEVENTS
Andrew Lunnb5e12222012-06-22 20:57:57 +0200638 select NEED_MACH_IO_H
Russell King788c9702009-04-26 14:21:59 +0100639 select PLAT_ORION
640 help
641 Support for the following Marvell Orion 5x series SoCs:
642 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
643 Orion-2 (5281), Orion-1-90 (6183).
644
645config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500646 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100647 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100648 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100649 select CLKDEV_LOOKUP
Russell King788c9702009-04-26 14:21:59 +0100650 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800651 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800652 select IRQ_DOMAIN
Russell King788c9702009-04-26 14:21:59 +0100653 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400654 select SPARSE_IRQ
Leo Yan3c7241b2011-08-15 11:09:52 +0800655 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100656 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500657 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100658
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100659config ARCH_KS8695
660 bool "Micrel/Kendin KS8695"
Russell Kingc7508152008-10-26 10:55:14 +0000661 select CPU_ARM922T
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100662 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000663 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400664 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100665 help
666 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
667 System-on-Chip devices.
668
Russell King788c9702009-04-26 14:21:59 +0100669config ARCH_W90X900
670 bool "Nuvoton W90X900 CPU"
671 select CPU_ARM926T
wanzongshunc52d3d62009-06-10 15:49:32 +0100672 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100673 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100674 select CLKSRC_MMIO
wanzongshun58b53692009-08-14 15:36:44 +0100675 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200676 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100677 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
678 At present, the w90x900 has been renamed nuc900, regarding
679 the ARM series product line, you can login the following
680 link address to know more.
681
682 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
683 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400684
Erik Gillingc5f80062010-01-21 16:53:02 -0800685config ARCH_TEGRA
686 bool "NVIDIA Tegra"
Russell King40737232011-01-06 22:32:52 +0000687 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100688 select CLKSRC_MMIO
Erik Gillingc5f80062010-01-21 16:53:02 -0800689 select GENERIC_CLOCKEVENTS
690 select GENERIC_GPIO
691 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000692 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000693 select MIGHT_HAVE_CACHE_L2X0
Rob Herringc334bc12012-03-04 22:03:33 -0600694 select NEED_MACH_IO_H if PCI
Colin Cross7056d422010-04-22 20:30:13 -0700695 select ARCH_HAS_CPUFREQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600696 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800697 help
698 This enables support for NVIDIA Tegra based systems (Tegra APX,
699 Tegra 6xx and Tegra 2 series).
700
Jamie Ilesaf756552011-07-25 17:36:42 +0100701config ARCH_PICOXCELL
702 bool "Picochip picoXcell"
703 select ARCH_REQUIRE_GPIOLIB
704 select ARM_PATCH_PHYS_VIRT
705 select ARM_VIC
706 select CPU_V6K
707 select DW_APB_TIMER
Dinh Nguyencfda5902012-07-11 15:13:16 -0500708 select DW_APB_TIMER_OF
Jamie Ilesaf756552011-07-25 17:36:42 +0100709 select GENERIC_CLOCKEVENTS
710 select GENERIC_GPIO
Jamie Ilesaf756552011-07-25 17:36:42 +0100711 select HAVE_TCM
712 select NO_IOPORT
Jamie Iles98e27a52011-12-12 20:17:37 +0000713 select SPARSE_IRQ
Jamie Ilesaf756552011-07-25 17:36:42 +0100714 select USE_OF
715 help
716 This enables support for systems based on the Picochip picoXcell
717 family of Femtocell devices. The picoxcell support requires device tree
718 for all boards.
719
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100720config ARCH_PNX4008
721 bool "Philips Nexperia PNX4008 Mobile"
Russell Kingc7508152008-10-26 10:55:14 +0000722 select CPU_ARM926T
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100723 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000724 select ARCH_USES_GETTIMEOFFSET
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100725 help
726 This enables support for Philips PNX4008 mobile platform.
727
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700729 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100730 depends on MMU
Al Viro034d2f52005-12-19 16:27:59 -0500731 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100732 select ARCH_HAS_CPUFREQ
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100733 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100734 select CLKSRC_MMIO
Michael Buesch7444a722008-07-25 01:46:11 -0700735 select ARCH_REQUIRE_GPIOLIB
Eric Miao981d0f32007-07-24 01:22:43 +0100736 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800737 select GPIO_PXA
Eric Miaobd5ce432009-01-20 12:06:01 +0800738 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800739 select SPARSE_IRQ
Eric Miao4e234cc2011-04-04 15:06:33 +0800740 select AUTO_ZRELADDR
Eric Miao8a97ae22011-05-18 21:30:04 +0800741 select MULTI_IRQ_HANDLER
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +0200742 select ARM_CPU_SUSPEND if PM
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200743 select HAVE_IDE
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000744 help
eric miao2c8086a2007-09-11 19:13:17 -0700745 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746
Russell King788c9702009-04-26 14:21:59 +0100747config ARCH_MSM
748 bool "Qualcomm MSM"
Steve Muckle4b536b82008-12-29 16:17:22 -0500749 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800750 select GENERIC_CLOCKEVENTS
Pavel Machek923a0812010-06-02 11:11:12 -0700751 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800752 select CLKDEV_LOOKUP
Eric Miao49cbe782009-01-20 14:15:18 +0800753 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800754 Support for Qualcomm MSM/QSD based systems. This runs on the
755 apps processor of the MSM/QSD and depends on a shared memory
756 interface to the modem processor which runs the baseband
757 stack and controls some vital subsystems
758 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800759
Magnus Dammc793c1b2010-02-05 11:14:49 +0000760config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900761 bool "Renesas SH-Mobile / R-Mobile"
762 select HAVE_CLK
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900763 select CLKDEV_LOOKUP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900764 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000765 select HAVE_SMP
Paul Mundt6d72ad32010-11-16 16:10:20 +0900766 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000767 select MIGHT_HAVE_CACHE_L2X0
Paul Mundt6d72ad32010-11-16 16:10:20 +0900768 select NO_IOPORT
769 select SPARSE_IRQ
Magnus Damm60f14352010-12-28 08:26:52 +0000770 select MULTI_IRQ_HANDLER
Rafael J. Wysockie3e01092011-07-01 22:13:56 +0200771 select PM_GENERIC_DOMAINS if PM
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400772 select NEED_MACH_MEMORY_H
Magnus Dammc793c1b2010-02-05 11:14:49 +0000773 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900774 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000775
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776config ARCH_RPC
777 bool "RiscPC"
778 select ARCH_ACORN
779 select FIQ
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100780 select ARCH_MAY_HAVE_PC_FDC
Ben Dooks341eb782008-07-01 14:16:49 +0100781 select HAVE_PATA_PLATFORM
Russell King065909b2006-01-04 15:44:16 +0000782 select ISA_DMA_API
Al Viro5ea81762007-02-11 15:41:31 +0000783 select NO_IOPORT
Russell King07f841b2008-10-01 17:11:06 +0100784 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000785 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200786 select HAVE_IDE
Rob Herringc334bc12012-03-04 22:03:33 -0600787 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400788 select NEED_MACH_MEMORY_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789 help
790 On the Acorn Risc-PC, Linux can support the internal IDE disk and
791 CD-ROM interface, serial and parallel port, and the floppy drive.
792
793config ARCH_SA1100
794 bool "SA1100-based"
Russell King234b6ced2011-05-08 14:09:47 +0100795 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000796 select CPU_SA1100
Russell Kingf7e68bb2005-05-05 14:49:01 +0100797 select ISA
Russell King05944d72006-11-30 20:43:51 +0000798 select ARCH_SPARSEMEM_ENABLE
Al Viro034d2f52005-12-19 16:27:59 -0500799 select ARCH_MTD_XIP
Ben Dooks89c52ed2009-07-30 23:23:24 +0100800 select ARCH_HAS_CPUFREQ
Russell King1937f5b2009-12-12 16:20:57 +0000801 select CPU_FREQ
Russell King3e238be2008-04-14 23:03:10 +0100802 select GENERIC_CLOCKEVENTS
Jett.Zhou4a8f8342011-11-30 14:32:36 +0800803 select CLKDEV_LOOKUP
Michael Buesch7444a722008-07-25 01:46:11 -0700804 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200805 select HAVE_IDE
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400806 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100807 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000808 help
809 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900811config ARCH_S3C24XX
812 bool "Samsung S3C24XX SoCs"
David Brownell0a938b92007-03-05 00:30:18 -0800813 select GENERIC_GPIO
Ben Dooks9d56c022009-07-30 23:23:25 +0100814 select ARCH_HAS_CPUFREQ
David Brownell9483a572008-07-23 21:26:48 -0700815 select HAVE_CLK
Thomas Abrahame83626f2011-06-14 19:12:26 +0900816 select CLKDEV_LOOKUP
John Stultz5cfc8ee2010-03-24 00:22:36 +0000817 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900818 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900819 select HAVE_S3C_RTC if RTC_CLASS
820 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Rob Herringc334bc12012-03-04 22:03:33 -0600821 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900823 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
824 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
825 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
826 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900827
Ben Dooksa08ab632008-10-21 14:06:39 +0100828config ARCH_S3C64XX
829 bool "Samsung S3C64XX"
Ben Dooks89f1fa02010-01-29 09:02:17 +0000830 select PLAT_SAMSUNG
Ben Dooks89f0ce72010-01-26 15:49:15 +0900831 select CPU_V6
Ben Dooks89f0ce72010-01-26 15:49:15 +0900832 select ARM_VIC
Ben Dooksa08ab632008-10-21 14:06:39 +0100833 select HAVE_CLK
Mark Brown67003972011-10-11 08:57:11 +0900834 select HAVE_TCM
Thomas Abraham226e85f2011-06-14 19:12:26 +0900835 select CLKDEV_LOOKUP
Ben Dooks89f0ce72010-01-26 15:49:15 +0900836 select NO_IOPORT
John Stultz5cfc8ee2010-03-24 00:22:36 +0000837 select ARCH_USES_GETTIMEOFFSET
Ben Dooks89c52ed2009-07-30 23:23:24 +0100838 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900839 select ARCH_REQUIRE_GPIOLIB
840 select SAMSUNG_CLKSRC
841 select SAMSUNG_IRQ_VIC_TIMER
Ben Dooks89f0ce72010-01-26 15:49:15 +0900842 select S3C_GPIO_TRACK
Ben Dooks89f0ce72010-01-26 15:49:15 +0900843 select S3C_DEV_NAND
844 select USB_ARCH_HAS_OHCI
845 select SAMSUNG_GPIOLIB_4BIT
Kukjin Kim20676c12010-11-13 16:08:32 +0900846 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900847 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Ben Dooksa08ab632008-10-21 14:06:39 +0100848 help
849 Samsung S3C64XX series based systems
850
Kukjin Kim49b7a492010-09-07 15:47:18 +0900851config ARCH_S5P64X0
852 bool "Samsung S5P6440 S5P6450"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900853 select CPU_V6
854 select GENERIC_GPIO
855 select HAVE_CLK
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900856 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900857 select CLKSRC_MMIO
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900858 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900859 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900860 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900861 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900862 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900863 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
864 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900865
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200866config ARCH_S5PC100
867 bool "Samsung S5PC100"
Byungho Min5a7652f2009-06-23 21:39:42 +0900868 select GENERIC_GPIO
869 select HAVE_CLK
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900870 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900871 select CPU_V7
Ben Dooks925c68c2010-05-20 20:48:28 +0900872 select ARCH_USES_GETTIMEOFFSET
Kukjin Kim20676c12010-11-13 16:08:32 +0900873 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900874 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900875 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Byungho Min5a7652f2009-06-23 21:39:42 +0900876 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200877 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900878
Kukjin Kim170f4e42010-02-24 16:40:44 +0900879config ARCH_S5PV210
880 bool "Samsung S5PV210/S5PC110"
881 select CPU_V7
Kyungmin Parkeecb6a82010-09-29 21:29:27 +0900882 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900883 select ARCH_HAS_HOLES_MEMORYMODEL
Kukjin Kim170f4e42010-02-24 16:40:44 +0900884 select GENERIC_GPIO
885 select HAVE_CLK
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900886 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900887 select CLKSRC_MMIO
Jaecheol Leed8144ae2010-10-12 09:23:19 +0900888 select ARCH_HAS_CPUFREQ
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900889 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900890 select HAVE_S3C2410_I2C if I2C
Kukjin Kim754961a2010-11-13 16:11:46 +0900891 select HAVE_S3C_RTC if RTC_CLASS
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900892 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400893 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900894 help
895 Samsung S5PV210/S5PC110 series based systems
896
Kukjin Kim83014572011-11-06 13:54:56 +0900897config ARCH_EXYNOS
898 bool "SAMSUNG EXYNOS"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900899 select CPU_V7
Kyungmin Parkf567fa62010-09-29 21:33:29 +0900900 select ARCH_SPARSEMEM_ENABLE
Kamil Debski0f75a962011-07-21 16:42:30 +0900901 select ARCH_HAS_HOLES_MEMORYMODEL
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900902 select GENERIC_GPIO
903 select HAVE_CLK
Thomas Abrahambadc4f22011-06-14 19:12:27 +0900904 select CLKDEV_LOOKUP
Sunyoung Kangb333fb12010-09-16 11:11:45 +0900905 select ARCH_HAS_CPUFREQ
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900906 select GENERIC_CLOCKEVENTS
Kukjin Kim754961a2010-11-13 16:11:46 +0900907 select HAVE_S3C_RTC if RTC_CLASS
Kukjin Kim20676c12010-11-13 16:08:32 +0900908 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900909 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400910 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900911 help
Kukjin Kim83014572011-11-06 13:54:56 +0900912 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900913
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914config ARCH_SHARK
915 bool "Shark"
Russell Kingc7508152008-10-26 10:55:14 +0000916 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100917 select ISA
918 select ISA_DMA
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100919 select ZONE_DMA
Russell Kingf7e68bb2005-05-05 14:49:01 +0100920 select PCI
John Stultz5cfc8ee2010-03-24 00:22:36 +0000921 select ARCH_USES_GETTIMEOFFSET
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400922 select NEED_MACH_MEMORY_H
Rob Herringc334bc12012-03-04 22:03:33 -0600923 select NEED_MACH_IO_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000924 help
925 Support for the StrongARM based Digital DNARD machine, also known
926 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927
Linus Walleijd98aac72009-04-27 10:21:46 +0100928config ARCH_U300
929 bool "ST-Ericsson U300 Series"
930 depends on MMU
Russell King234b6ced2011-05-08 14:09:47 +0100931 select CLKSRC_MMIO
Linus Walleijd98aac72009-04-27 10:21:46 +0100932 select CPU_ARM926T
Linus Walleijbc581772009-09-15 17:30:37 +0100933 select HAVE_TCM
Linus Walleijd98aac72009-04-27 10:21:46 +0100934 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200935 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100936 select ARM_VIC
Linus Walleijd98aac72009-04-27 10:21:46 +0100937 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100938 select CLKDEV_LOOKUP
Linus Walleij50667d62012-06-19 23:44:25 +0200939 select COMMON_CLK
Linus Walleijd98aac72009-04-27 10:21:46 +0100940 select GENERIC_GPIO
Linus Walleijcc890cd2011-09-08 09:04:51 +0100941 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100942 help
943 Support for ST-Ericsson U300 series mobile platforms.
944
Russell Kingccf50e22010-03-15 19:03:06 +0000945config ARCH_U8500
946 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700947 depends on MMU
Russell Kingccf50e22010-03-15 19:03:06 +0000948 select CPU_V7
949 select ARM_AMBA
Russell Kingccf50e22010-03-15 19:03:06 +0000950 select GENERIC_CLOCKEVENTS
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100951 select CLKDEV_LOOKUP
Rabin Vincent94bdc0e2010-03-03 04:54:37 +0100952 select ARCH_REQUIRE_GPIOLIB
Martin Persson7c1a70e2010-12-08 15:13:42 +0100953 select ARCH_HAS_CPUFREQ
Dave Martin3b556582011-12-07 15:38:04 +0000954 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000955 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000956 help
957 Support for ST-Ericsson's Ux500 architecture
958
959config ARCH_NOMADIK
960 bool "STMicroelectronics Nomadik"
961 select ARM_AMBA
962 select ARM_VIC
963 select CPU_ARM926T
Linus Walleij4a31bd22012-01-11 13:52:34 +0100964 select COMMON_CLK
Russell Kingccf50e22010-03-15 19:03:06 +0000965 select GENERIC_CLOCKEVENTS
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000966 select PINCTRL
Dave Martince5ea9f2011-11-29 15:56:19 +0000967 select MIGHT_HAVE_CACHE_L2X0
Russell Kingccf50e22010-03-15 19:03:06 +0000968 select ARCH_REQUIRE_GPIOLIB
969 help
970 Support for the Nomadik platform by ST-Ericsson
971
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100972config ARCH_DAVINCI
973 bool "TI DaVinci"
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100974 select GENERIC_CLOCKEVENTS
David Brownelldce11152008-09-07 23:41:04 -0700975 select ARCH_REQUIRE_GPIOLIB
Nicolas Pitre3bca1032008-10-07 20:14:55 +0100976 select ZONE_DMA
Kevin Hilman9232fcc2009-04-08 14:49:38 -0700977 select HAVE_IDE
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100978 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700979 select GENERIC_ALLOCATOR
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100980 select GENERIC_IRQ_CHIP
Sekhar Noriae88e052009-11-19 15:34:01 +0530981 select ARCH_HAS_HOLES_MEMORYMODEL
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100982 help
983 Support for TI's DaVinci platform.
984
Russell King3b938be2007-05-12 11:25:44 +0100985config ARCH_OMAP
986 bool "TI OMAP"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600987 depends on MMU
David Brownell9483a572008-07-23 21:26:48 -0700988 select HAVE_CLK
Michael Buesch7444a722008-07-25 01:46:11 -0700989 select ARCH_REQUIRE_GPIOLIB
Ben Dooks89c52ed2009-07-30 23:23:24 +0100990 select ARCH_HAS_CPUFREQ
Russell King - ARM Linux354a1832011-07-10 23:05:34 -0700991 select CLKSRC_MMIO
Kevin Hilman06cad092007-10-18 23:04:43 -0700992 select GENERIC_CLOCKEVENTS
Sriram9af915d2010-01-29 14:20:05 -0800993 select ARCH_HAS_HOLES_MEMORYMODEL
Russell King3b938be2007-05-12 11:25:44 +0100994 help
Lennert Buytenhek6e457bb2010-09-22 20:40:57 +0200995 Support for TI's OMAP platform (OMAP1/2/3/4).
Russell King3b938be2007-05-12 11:25:44 +0100996
viresh kumarcee37e52010-04-01 12:31:05 +0100997config PLAT_SPEAR
998 bool "ST SPEAr"
999 select ARM_AMBA
1000 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +01001001 select CLKDEV_LOOKUP
Viresh Kumar5df33a62012-04-10 09:02:35 +05301002 select COMMON_CLK
Russell Kingd6e15d72011-05-08 17:10:14 +01001003 select CLKSRC_MMIO
viresh kumarcee37e52010-04-01 12:31:05 +01001004 select GENERIC_CLOCKEVENTS
viresh kumarcee37e52010-04-01 12:31:05 +01001005 select HAVE_CLK
1006 help
1007 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
1008
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001009config ARCH_VT8500
1010 bool "VIA/WonderMedia 85xx"
1011 select CPU_ARM926T
1012 select GENERIC_GPIO
1013 select ARCH_HAS_CPUFREQ
1014 select GENERIC_CLOCKEVENTS
1015 select ARCH_REQUIRE_GPIOLIB
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001016 help
1017 Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
Binghua Duan02c981c2011-07-08 17:40:12 +08001018
John Linnb85a3ef2011-06-20 11:47:27 -06001019config ARCH_ZYNQ
1020 bool "Xilinx Zynq ARM Cortex A9 Platform"
Binghua Duan02c981c2011-07-08 17:40:12 +08001021 select CPU_V7
Binghua Duan02c981c2011-07-08 17:40:12 +08001022 select GENERIC_CLOCKEVENTS
1023 select CLKDEV_LOOKUP
John Linnb85a3ef2011-06-20 11:47:27 -06001024 select ARM_GIC
1025 select ARM_AMBA
1026 select ICST
Dave Martince5ea9f2011-11-29 15:56:19 +00001027 select MIGHT_HAVE_CACHE_L2X0
Binghua Duan02c981c2011-07-08 17:40:12 +08001028 select USE_OF
Binghua Duan02c981c2011-07-08 17:40:12 +08001029 help
John Linnb85a3ef2011-06-20 11:47:27 -06001030 Support for Xilinx Zynq ARM Cortex A9 Platform
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031endchoice
1032
Russell Kingccf50e22010-03-15 19:03:06 +00001033#
1034# This is sorted alphabetically by mach-* pathname. However, plat-*
1035# Kconfigs may be included either alphabetically (according to the
1036# plat- suffix) or along side the corresponding mach-* source.
1037#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001038source "arch/arm/mach-mvebu/Kconfig"
1039
Russell King95b8f202010-01-14 11:43:54 +00001040source "arch/arm/mach-at91/Kconfig"
1041
1042source "arch/arm/mach-bcmring/Kconfig"
1043
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044source "arch/arm/mach-clps711x/Kconfig"
1045
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001046source "arch/arm/mach-cns3xxx/Kconfig"
1047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-davinci/Kconfig"
1049
1050source "arch/arm/mach-dove/Kconfig"
1051
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001052source "arch/arm/mach-ep93xx/Kconfig"
1053
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054source "arch/arm/mach-footbridge/Kconfig"
1055
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001056source "arch/arm/mach-gemini/Kconfig"
1057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/mach-h720x/Kconfig"
1059
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060source "arch/arm/mach-integrator/Kconfig"
1061
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001062source "arch/arm/mach-iop32x/Kconfig"
1063
1064source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065
Dan Williams285f5fa2006-12-07 02:59:39 +01001066source "arch/arm/mach-iop13xx/Kconfig"
1067
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068source "arch/arm/mach-ixp4xx/Kconfig"
1069
Russell King95b8f202010-01-14 11:43:54 +00001070source "arch/arm/mach-kirkwood/Kconfig"
1071
1072source "arch/arm/mach-ks8695/Kconfig"
1073
Russell King95b8f202010-01-14 11:43:54 +00001074source "arch/arm/mach-msm/Kconfig"
1075
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001076source "arch/arm/mach-mv78xx0/Kconfig"
1077
Russell King95b8f202010-01-14 11:43:54 +00001078source "arch/arm/plat-mxc/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001080source "arch/arm/mach-mxs/Kconfig"
1081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-nomadik/Kconfig"
1085source "arch/arm/plat-nomadik/Kconfig"
1086
Tony Lindgrend48af152005-07-10 19:58:17 +01001087source "arch/arm/plat-omap/Kconfig"
1088
1089source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Tony Lindgren1dbae812005-11-10 14:26:51 +00001091source "arch/arm/mach-omap2/Kconfig"
1092
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001093source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001094
Russell King95b8f202010-01-14 11:43:54 +00001095source "arch/arm/mach-pxa/Kconfig"
1096source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
Russell King95b8f202010-01-14 11:43:54 +00001098source "arch/arm/mach-mmp/Kconfig"
1099
1100source "arch/arm/mach-realview/Kconfig"
1101
1102source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001103
Ben Dookscf383672009-11-10 00:14:58 +00001104source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001105source "arch/arm/plat-s3c24xx/Kconfig"
1106
viresh kumarcee37e52010-04-01 12:31:05 +01001107source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001108
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001109source "arch/arm/mach-s3c24xx/Kconfig"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001110if ARCH_S3C24XX
Ben Dooksa21765a2007-02-11 18:31:01 +01001111source "arch/arm/mach-s3c2412/Kconfig"
1112source "arch/arm/mach-s3c2440/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001113endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114
Ben Dooksa08ab632008-10-21 14:06:39 +01001115if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001116source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001117endif
1118
Kukjin Kim49b7a492010-09-07 15:47:18 +09001119source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001120
Byungho Min5a7652f2009-06-23 21:39:42 +09001121source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001122
Kukjin Kim170f4e42010-02-24 16:40:44 +09001123source "arch/arm/mach-s5pv210/Kconfig"
1124
Kukjin Kim83014572011-11-06 13:54:56 +09001125source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001126
Russell King882d01f2010-03-02 23:40:15 +00001127source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128
Erik Gillingc5f80062010-01-21 16:53:02 -08001129source "arch/arm/mach-tegra/Kconfig"
1130
Russell King95b8f202010-01-14 11:43:54 +00001131source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132
Russell King95b8f202010-01-14 11:43:54 +00001133source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134
1135source "arch/arm/mach-versatile/Kconfig"
1136
Russell Kingceade892010-02-11 21:44:53 +00001137source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001138source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001139
Alexey Charkov21f47fb2010-12-23 13:11:21 +01001140source "arch/arm/mach-vt8500/Kconfig"
1141
wanzongshun7ec80dd2008-12-03 03:55:38 +01001142source "arch/arm/mach-w90x900/Kconfig"
1143
Linus Torvalds1da177e2005-04-16 15:20:36 -07001144# Definitions to make life easier
1145config ARCH_ACORN
1146 bool
1147
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001148config PLAT_IOP
1149 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001150 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001151
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001152config PLAT_ORION
1153 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001154 select CLKSRC_MMIO
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001155 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001156 select IRQ_DOMAIN
Andrew Lunn2f129bf2011-12-15 08:15:07 +01001157 select COMMON_CLK
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001158
Eric Miaobd5ce432009-01-20 12:06:01 +08001159config PLAT_PXA
1160 bool
1161
Russell Kingf4b8b312010-01-14 12:48:06 +00001162config PLAT_VERSATILE
1163 bool
1164
Russell Kinge3887712010-01-14 13:30:16 +00001165config ARM_TIMER_SP804
1166 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001167 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001168 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001169
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170source arch/arm/mm/Kconfig
1171
Russell King958cab02011-12-11 10:04:00 +00001172config ARM_NR_BANKS
1173 int
1174 default 16 if ARCH_EP93XX
1175 default 8
1176
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001177config IWMMXT
1178 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001179 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1180 default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001181 help
1182 Enable support for iWMMXt context switching at run time if
1183 running on a CPU that supports it.
1184
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185config XSCALE_PMU
1186 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001187 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188 default y
1189
Jamie Iles0f4f0672010-02-02 20:23:15 +01001190config CPU_HAS_PMU
Russell Kinge399b1a2011-01-17 15:08:32 +00001191 depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
Will Deacon8954bb02010-06-21 15:32:54 +01001192 (!ARCH_OMAP3 || OMAP3_EMU)
Jamie Iles0f4f0672010-02-02 20:23:15 +01001193 default y
1194 bool
1195
eric miao52108642010-12-13 09:42:34 +01001196config MULTI_IRQ_HANDLER
1197 bool
1198 help
1199 Allow each machine to specify it's own IRQ handler at run time.
1200
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001201if !MMU
1202source "arch/arm/Kconfig-nommu"
1203endif
1204
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001205config ARM_ERRATA_326103
1206 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1207 depends on CPU_V6
1208 help
1209 Executing a SWP instruction to read-only memory does not set bit 11
1210 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1211 treat the access as a read, preventing a COW from occurring and
1212 causing the faulting task to livelock.
1213
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001214config ARM_ERRATA_411920
1215 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001216 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001217 help
1218 Invalidation of the Instruction Cache operation can
1219 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1220 It does not affect the MPCore. This option enables the ARM Ltd.
1221 recommended workaround.
1222
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001223config ARM_ERRATA_430973
1224 bool "ARM errata: Stale prediction on replaced interworking branch"
1225 depends on CPU_V7
1226 help
1227 This option enables the workaround for the 430973 Cortex-A8
1228 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1229 interworking branch is replaced with another code sequence at the
1230 same virtual address, whether due to self-modifying code or virtual
1231 to physical address re-mapping, Cortex-A8 does not recover from the
1232 stale interworking branch prediction. This results in Cortex-A8
1233 executing the new code sequence in the incorrect ARM or Thumb state.
1234 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1235 and also flushes the branch target cache at every context switch.
1236 Note that setting specific bits in the ACTLR register may not be
1237 available in non-secure mode.
1238
Catalin Marinas855c5512009-04-30 17:06:15 +01001239config ARM_ERRATA_458693
1240 bool "ARM errata: Processor deadlock when a false hazard is created"
1241 depends on CPU_V7
1242 help
1243 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1244 erratum. For very specific sequences of memory operations, it is
1245 possible for a hazard condition intended for a cache line to instead
1246 be incorrectly associated with a different cache line. This false
1247 hazard might then cause a processor deadlock. The workaround enables
1248 the L1 caching of the NEON accesses and disables the PLD instruction
1249 in the ACTLR register. Note that setting specific bits in the ACTLR
1250 register may not be available in non-secure mode.
1251
Catalin Marinas0516e462009-04-30 17:06:20 +01001252config ARM_ERRATA_460075
1253 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1254 depends on CPU_V7
1255 help
1256 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1257 erratum. Any asynchronous access to the L2 cache may encounter a
1258 situation in which recent store transactions to the L2 cache are lost
1259 and overwritten with stale memory contents from external memory. The
1260 workaround disables the write-allocate mode for the L2 cache via the
1261 ACTLR register. Note that setting specific bits in the ACTLR register
1262 may not be available in non-secure mode.
1263
Will Deacon9f050272010-09-14 09:51:43 +01001264config ARM_ERRATA_742230
1265 bool "ARM errata: DMB operation may be faulty"
1266 depends on CPU_V7 && SMP
1267 help
1268 This option enables the workaround for the 742230 Cortex-A9
1269 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1270 between two write operations may not ensure the correct visibility
1271 ordering of the two writes. This workaround sets a specific bit in
1272 the diagnostic register of the Cortex-A9 which causes the DMB
1273 instruction to behave as a DSB, ensuring the correct behaviour of
1274 the two writes.
1275
Will Deacona672e992010-09-14 09:53:02 +01001276config ARM_ERRATA_742231
1277 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1278 depends on CPU_V7 && SMP
1279 help
1280 This option enables the workaround for the 742231 Cortex-A9
1281 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1282 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1283 accessing some data located in the same cache line, may get corrupted
1284 data due to bad handling of the address hazard when the line gets
1285 replaced from one of the CPUs at the same time as another CPU is
1286 accessing it. This workaround sets specific bits in the diagnostic
1287 register of the Cortex-A9 which reduces the linefill issuing
1288 capabilities of the processor.
1289
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001290config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001291 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001292 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001293 help
1294 The PL310 L2 cache controller implements three types of Clean &
1295 Invalidate maintenance operations: by Physical Address
1296 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1297 They are architecturally defined to behave as the execution of a
1298 clean operation followed immediately by an invalidate operation,
1299 both performing to the same memory location. This functionality
1300 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001301 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001302
1303config ARM_ERRATA_720789
1304 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001305 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001306 help
1307 This option enables the workaround for the 720789 Cortex-A9 (prior to
1308 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1309 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1310 As a consequence of this erratum, some TLB entries which should be
1311 invalidated are not, resulting in an incoherency in the system page
1312 tables. The workaround changes the TLB flushing routines to invalidate
1313 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001314
Russell King1f0090a2011-03-16 23:35:25 +00001315config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001316 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001317 depends on CACHE_L2X0
1318 help
1319 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1320 operation (offset 0x7FC). This operation runs in background so that
1321 PL310 can handle normal accesses while it is in progress. Under very
1322 rare circumstances, due to this erratum, write data can be lost when
1323 PL310 treats a cacheable write transaction during a Clean &
1324 Invalidate by Way operation.
1325
Will Deacon475d92f2010-09-28 14:02:02 +01001326config ARM_ERRATA_743622
1327 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1328 depends on CPU_V7
1329 help
1330 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001331 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001332 optimisation in the Cortex-A9 Store Buffer may lead to data
1333 corruption. This workaround sets a specific bit in the diagnostic
1334 register of the Cortex-A9 which disables the Store Buffer
1335 optimisation, preventing the defect from occurring. This has no
1336 visible impact on the overall performance or power consumption of the
1337 processor.
1338
Will Deacon9a27c272011-02-18 16:36:35 +01001339config ARM_ERRATA_751472
1340 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001341 depends on CPU_V7
Will Deacon9a27c272011-02-18 16:36:35 +01001342 help
1343 This option enables the workaround for the 751472 Cortex-A9 (prior
1344 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1345 completion of a following broadcasted operation if the second
1346 operation is received by a CPU before the ICIALLUIS has completed,
1347 potentially leading to corrupted entries in the cache or TLB.
1348
Will Deaconfa0ce402011-11-14 17:24:57 +01001349config PL310_ERRATA_753970
1350 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001351 depends on CACHE_PL310
1352 help
1353 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1354
1355 Under some condition the effect of cache sync operation on
1356 the store buffer still remains when the operation completes.
1357 This means that the store buffer is always asked to drain and
1358 this prevents it from merging any further writes. The workaround
1359 is to replace the normal offset of cache sync operation (0x730)
1360 by another offset targeting an unmapped PL310 register 0x740.
1361 This has the same effect as the cache sync operation: store buffer
1362 drain and waiting for all buffers empty.
1363
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001364config ARM_ERRATA_754322
1365 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1366 depends on CPU_V7
1367 help
1368 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1369 r3p*) erratum. A speculative memory access may cause a page table walk
1370 which starts prior to an ASID switch but completes afterwards. This
1371 can populate the micro-TLB with a stale entry which may be hit with
1372 the new ASID. This workaround places two dsb instructions in the mm
1373 switching code so that no page table walks can cross the ASID switch.
1374
Will Deacon5dab26af2011-03-04 12:38:54 +01001375config ARM_ERRATA_754327
1376 bool "ARM errata: no automatic Store Buffer drain"
1377 depends on CPU_V7 && SMP
1378 help
1379 This option enables the workaround for the 754327 Cortex-A9 (prior to
1380 r2p0) erratum. The Store Buffer does not have any automatic draining
1381 mechanism and therefore a livelock may occur if an external agent
1382 continuously polls a memory location waiting to observe an update.
1383 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1384 written polling loops from denying visibility of updates to memory.
1385
Catalin Marinas145e10e2011-08-15 11:04:41 +01001386config ARM_ERRATA_364296
1387 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1388 depends on CPU_V6 && !SMP
1389 help
1390 This options enables the workaround for the 364296 ARM1136
1391 r0p2 erratum (possible cache data corruption with
1392 hit-under-miss enabled). It sets the undocumented bit 31 in
1393 the auxiliary control register and the FI bit in the control
1394 register, thus disabling hit-under-miss without putting the
1395 processor into full low interrupt latency mode. ARM11MPCore
1396 is not affected.
1397
Will Deaconf630c1b2011-09-15 11:45:15 +01001398config ARM_ERRATA_764369
1399 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1400 depends on CPU_V7 && SMP
1401 help
1402 This option enables the workaround for erratum 764369
1403 affecting Cortex-A9 MPCore with two or more processors (all
1404 current revisions). Under certain timing circumstances, a data
1405 cache line maintenance operation by MVA targeting an Inner
1406 Shareable memory region may fail to proceed up to either the
1407 Point of Coherency or to the Point of Unification of the
1408 system. This workaround adds a DSB instruction before the
1409 relevant cache maintenance functions and sets a specific bit
1410 in the diagnostic control register of the SCU.
1411
Will Deacon11ed0ba2011-11-14 17:24:58 +01001412config PL310_ERRATA_769419
1413 bool "PL310 errata: no automatic Store Buffer drain"
1414 depends on CACHE_L2X0
1415 help
1416 On revisions of the PL310 prior to r3p2, the Store Buffer does
1417 not automatically drain. This can cause normal, non-cacheable
1418 writes to be retained when the memory system is idle, leading
1419 to suboptimal I/O performance for drivers using coherent DMA.
1420 This option adds a write barrier to the cpu_idle loop so that,
1421 on systems with an outer cache, the store buffer is drained
1422 explicitly.
1423
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424endmenu
1425
1426source "arch/arm/common/Kconfig"
1427
Linus Torvalds1da177e2005-04-16 15:20:36 -07001428menu "Bus support"
1429
1430config ARM_AMBA
1431 bool
1432
1433config ISA
1434 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435 help
1436 Find out whether you have ISA slots on your motherboard. ISA is the
1437 name of a bus system, i.e. the way the CPU talks to the other stuff
1438 inside your box. Other bus systems are PCI, EISA, MicroChannel
1439 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1440 newer boards don't support it. If you have ISA, say Y, otherwise N.
1441
Russell King065909b2006-01-04 15:44:16 +00001442# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443config ISA_DMA
1444 bool
Russell King065909b2006-01-04 15:44:16 +00001445 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446
Russell King065909b2006-01-04 15:44:16 +00001447# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001448config ISA_DMA_API
1449 bool
Al Viro5cae8412005-05-04 05:39:22 +01001450
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001452 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 help
1454 Find out whether you have a PCI motherboard. PCI is the name of a
1455 bus system, i.e. the way the CPU talks to the other stuff inside
1456 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1457 VESA. If you have PCI, say Y, otherwise N.
1458
Anton Vorontsov52882172010-04-19 13:20:49 +01001459config PCI_DOMAINS
1460 bool
1461 depends on PCI
1462
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001463config PCI_NANOENGINE
1464 bool "BSE nanoEngine PCI support"
1465 depends on SA1100_NANOENGINE
1466 help
1467 Enable PCI on the BSE nanoEngine board.
1468
Matthew Wilcox36e23592007-07-10 10:54:40 -06001469config PCI_SYSCALL
1470 def_bool PCI
1471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472# Select the host bridge type
1473config PCI_HOST_VIA82C505
1474 bool
1475 depends on PCI && ARCH_SHARK
1476 default y
1477
Mike Rapoporta0113a92007-11-25 08:55:34 +01001478config PCI_HOST_ITE8152
1479 bool
1480 depends on PCI && MACH_ARMCORE
1481 default y
1482 select DMABOUNCE
1483
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484source "drivers/pci/Kconfig"
1485
1486source "drivers/pcmcia/Kconfig"
1487
1488endmenu
1489
1490menu "Kernel Features"
1491
Dave Martin3b556582011-12-07 15:38:04 +00001492config HAVE_SMP
1493 bool
1494 help
1495 This option should be selected by machines which have an SMP-
1496 capable CPU.
1497
1498 The only effect of this option is to make the SMP-related
1499 options available to the user for configuration.
1500
Linus Torvalds1da177e2005-04-16 15:20:36 -07001501config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001502 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001503 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001504 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001505 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001506 depends on MMU
Jens Axboef6dd9fa2008-06-10 20:48:30 +02001507 select USE_GENERIC_SMP_HELPERS
Daniel Walker89c3ded2010-11-22 12:35:41 -08001508 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Linus Torvalds1da177e2005-04-16 15:20:36 -07001509 help
1510 This enables support for systems with more than one CPU. If you have
1511 a system with only one CPU, like most personal computers, say N. If
1512 you have a system with more than one CPU, say Y.
1513
1514 If you say N here, the kernel will run on single and multiprocessor
1515 machines, but will use only one CPU of a multiprocessor machine. If
1516 you say Y here, the kernel will run on many, but not all, single
1517 processor machines. On a single processor machine, the kernel will
1518 run faster if you say N here.
1519
Paul Bolle395cf962011-08-15 02:02:26 +02001520 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001521 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001522 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523
1524 If you don't know what to do here, say N.
1525
Russell Kingf00ec482010-09-04 10:47:48 +01001526config SMP_ON_UP
1527 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1528 depends on EXPERIMENTAL
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001529 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001530 default y
1531 help
1532 SMP kernels contain instructions which fail on non-SMP processors.
1533 Enabling this option allows the kernel to modify itself to make
1534 these instructions safe. Disabling it allows about 1K of space
1535 savings.
1536
1537 If you don't know what to do here, say Y.
1538
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001539config ARM_CPU_TOPOLOGY
1540 bool "Support cpu topology definition"
1541 depends on SMP && CPU_V7
1542 default y
1543 help
1544 Support ARM cpu topology definition. The MPIDR register defines
1545 affinity between processors which is then used to describe the cpu
1546 topology of an ARM System.
1547
1548config SCHED_MC
1549 bool "Multi-core scheduler support"
1550 depends on ARM_CPU_TOPOLOGY
1551 help
1552 Multi-core scheduler support improves the CPU scheduler's decision
1553 making when dealing with multi-core CPU chips at a cost of slightly
1554 increased overhead in some places. If unsure say N here.
1555
1556config SCHED_SMT
1557 bool "SMT scheduler support"
1558 depends on ARM_CPU_TOPOLOGY
1559 help
1560 Improves the CPU scheduler's decision making when dealing with
1561 MultiThreading at a cost of slightly increased overhead in some
1562 places. If unsure say N here.
1563
Russell Kinga8cbcd92009-05-16 11:51:14 +01001564config HAVE_ARM_SCU
1565 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001566 help
1567 This option enables support for the ARM system coherency unit
1568
Marc Zyngier022c03a2012-01-11 17:25:17 +00001569config ARM_ARCH_TIMER
1570 bool "Architected timer support"
1571 depends on CPU_V7
1572 help
1573 This option enables support for the ARM architected timer
1574
Russell Kingf32f4ce2009-05-16 12:14:21 +01001575config HAVE_ARM_TWD
1576 bool
1577 depends on SMP
1578 help
1579 This options enables support for the ARM timer and watchdog unit
1580
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001581choice
1582 prompt "Memory split"
1583 default VMSPLIT_3G
1584 help
1585 Select the desired split between kernel and user memory.
1586
1587 If you are not absolutely sure what you are doing, leave this
1588 option alone!
1589
1590 config VMSPLIT_3G
1591 bool "3G/1G user/kernel split"
1592 config VMSPLIT_2G
1593 bool "2G/2G user/kernel split"
1594 config VMSPLIT_1G
1595 bool "1G/3G user/kernel split"
1596endchoice
1597
1598config PAGE_OFFSET
1599 hex
1600 default 0x40000000 if VMSPLIT_1G
1601 default 0x80000000 if VMSPLIT_2G
1602 default 0xC0000000
1603
Linus Torvalds1da177e2005-04-16 15:20:36 -07001604config NR_CPUS
1605 int "Maximum number of CPUs (2-32)"
1606 range 2 32
1607 depends on SMP
1608 default "4"
1609
Russell Kinga054a812005-11-02 22:24:33 +00001610config HOTPLUG_CPU
1611 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1612 depends on SMP && HOTPLUG && EXPERIMENTAL
1613 help
1614 Say Y here to experiment with turning CPUs off and on. CPUs
1615 can be controlled through /sys/devices/system/cpu.
1616
Russell King37ee16a2005-11-08 19:08:05 +00001617config LOCAL_TIMERS
1618 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001619 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001620 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001621 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001622 help
1623 Enable support for local timers on SMP platforms, rather then the
1624 legacy IPI broadcast method. Local timers allows the system
1625 accounting to be spread across the timer interval, preventing a
1626 "thundering herd" at every timer tick.
1627
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001628config ARCH_NR_GPIO
1629 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001630 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001631 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001632 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301633 default 512 if SOC_OMAP5
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001634 default 0
1635 help
1636 Maximum number of GPIOs in the system.
1637
1638 If unsure, leave the default value.
1639
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001640source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001641
Russell Kingf8065812006-03-02 22:41:59 +00001642config HZ
1643 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001644 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001645 ARCH_S5PV210 || ARCH_EXYNOS4
Russell Kingbfe65702006-03-04 11:01:53 +00001646 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
David Brownell5248c652007-11-12 17:59:10 +01001647 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001648 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001649 default 100
1650
Catalin Marinas16c79652009-07-24 12:33:02 +01001651config THUMB2_KERNEL
Russell King4a50bfe2010-12-05 23:06:22 +00001652 bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
Russell Kinge399b1a2011-01-17 15:08:32 +00001653 depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
Catalin Marinas16c79652009-07-24 12:33:02 +01001654 select AEABI
1655 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001656 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001657 help
1658 By enabling this option, the kernel will be compiled in
1659 Thumb-2 mode. A compiler/assembler that understand the unified
1660 ARM-Thumb syntax is needed.
1661
1662 If unsure, say N.
1663
Dave Martin6f685c52011-03-03 11:41:12 +01001664config THUMB2_AVOID_R_ARM_THM_JUMP11
1665 bool "Work around buggy Thumb-2 short branch relocations in gas"
1666 depends on THUMB2_KERNEL && MODULES
1667 default y
1668 help
1669 Various binutils versions can resolve Thumb-2 branches to
1670 locally-defined, preemptible global symbols as short-range "b.n"
1671 branch instructions.
1672
1673 This is a problem, because there's no guarantee the final
1674 destination of the symbol, or any candidate locations for a
1675 trampoline, are within range of the branch. For this reason, the
1676 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1677 relocation in modules at all, and it makes little sense to add
1678 support.
1679
1680 The symptom is that the kernel fails with an "unsupported
1681 relocation" error when loading some modules.
1682
1683 Until fixed tools are available, passing
1684 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1685 code which hits this problem, at the cost of a bit of extra runtime
1686 stack usage in some cases.
1687
1688 The problem is described in more detail at:
1689 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1690
1691 Only Thumb-2 kernels are affected.
1692
1693 Unless you are sure your tools don't have this problem, say Y.
1694
Catalin Marinas0becb082009-07-24 12:32:53 +01001695config ARM_ASM_UNIFIED
1696 bool
1697
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001698config AEABI
1699 bool "Use the ARM EABI to compile the kernel"
1700 help
1701 This option allows for the kernel to be compiled using the latest
1702 ARM ABI (aka EABI). This is only useful if you are using a user
1703 space environment that is also compiled with EABI.
1704
1705 Since there are major incompatibilities between the legacy ABI and
1706 EABI, especially with regard to structure member alignment, this
1707 option also changes the kernel syscall calling convention to
1708 disambiguate both ABIs and allow for backward compatibility support
1709 (selected with CONFIG_OABI_COMPAT).
1710
1711 To use this you need GCC version 4.0.0 or later.
1712
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001713config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001714 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Dave Martin9bc433a2011-02-11 16:41:20 +01001715 depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001716 default y
1717 help
1718 This option preserves the old syscall interface along with the
1719 new (ARM EABI) one. It also provides a compatibility layer to
1720 intercept syscalls that have structure arguments which layout
1721 in memory differs between the legacy ABI and the new ARM EABI
1722 (only for non "thumb" binaries). This option adds a tiny
1723 overhead to all syscalls and produces a slightly larger kernel.
1724 If you know you'll be using only pure EABI user space then you
1725 can say N here. If this option is not selected and you attempt
1726 to execute a legacy ABI binary then the result will be
1727 UNPREDICTABLE (in fact it can be predicted that it won't work
1728 at all). If in doubt say Y.
1729
Mel Gormaneb335752009-05-13 17:34:48 +01001730config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001731 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001732
Russell King05944d72006-11-30 20:43:51 +00001733config ARCH_SPARSEMEM_ENABLE
1734 bool
1735
Russell King07a2f732008-10-01 21:39:58 +01001736config ARCH_SPARSEMEM_DEFAULT
1737 def_bool ARCH_SPARSEMEM_ENABLE
1738
Russell King05944d72006-11-30 20:43:51 +00001739config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001740 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001741
Will Deacon7b7bf492011-05-19 13:21:14 +01001742config HAVE_ARCH_PFN_VALID
1743 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1744
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001745config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001746 bool "High Memory Support"
1747 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001748 help
1749 The address space of ARM processors is only 4 Gigabytes large
1750 and it has to accommodate user address space, kernel address
1751 space as well as some memory mapped IO. That means that, if you
1752 have a large amount of physical memory and/or IO, not all of the
1753 memory can be "permanently mapped" by the kernel. The physical
1754 memory that is not permanently mapped is called "high memory".
1755
1756 Depending on the selected kernel/user memory split, minimum
1757 vmalloc space and actual amount of RAM, you may not need this
1758 option which should result in a slightly faster kernel.
1759
1760 If unsure, say n.
1761
Russell King65cec8e2009-08-17 20:02:06 +01001762config HIGHPTE
1763 bool "Allocate 2nd-level pagetables from highmem"
1764 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001765
Jamie Iles1b8873a2010-02-02 20:25:44 +01001766config HW_PERF_EVENTS
1767 bool "Enable hardware performance counter support for perf events"
Will Deaconfe166142010-04-30 11:37:51 +01001768 depends on PERF_EVENTS && CPU_HAS_PMU
Jamie Iles1b8873a2010-02-02 20:25:44 +01001769 default y
1770 help
1771 Enable hardware performance counter support for perf events. If
1772 disabled, perf events will use software events only.
1773
Dave Hansen3f22ab22005-06-23 00:07:43 -07001774source "mm/Kconfig"
1775
Magnus Dammc1b2d972010-07-05 10:00:11 +01001776config FORCE_MAX_ZONEORDER
1777 int "Maximum zone order" if ARCH_SHMOBILE
1778 range 11 64 if ARCH_SHMOBILE
1779 default "9" if SA1111
1780 default "11"
1781 help
1782 The kernel memory allocator divides physically contiguous memory
1783 blocks into "zones", where each zone is a power of two number of
1784 pages. This option selects the largest power of two that the kernel
1785 keeps in the memory allocator. If you need to allocate very large
1786 blocks of physically contiguous memory, then you may need to
1787 increase this value.
1788
1789 This config option is actually maximum order plus one. For example,
1790 a value of 11 means that the largest free memory block is 2^10 pages.
1791
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792config LEDS
1793 bool "Timer and CPU usage LEDs"
Adrian Bunke055d5bf2008-04-22 01:43:27 +01001794 depends on ARCH_CDB89712 || ARCH_EBSA110 || \
Sascha Hauer8c8fdbc2009-04-01 12:40:15 +02001795 ARCH_EBSA285 || ARCH_INTEGRATOR || \
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1797 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
SAN People73a59c12006-01-09 17:05:41 +00001798 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
Jürgen Schindele25329672008-09-16 21:36:30 +01001799 ARCH_AT91 || ARCH_DAVINCI || \
Colin Tuckleyff3042f2009-05-30 13:56:13 +01001800 ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
Linus Torvalds1da177e2005-04-16 15:20:36 -07001801 help
1802 If you say Y here, the LEDs on your machine will be used
1803 to provide useful information about your current system status.
1804
1805 If you are compiling a kernel for a NetWinder or EBSA-285, you will
1806 be able to select which LEDs are active using the options below. If
1807 you are compiling a kernel for the EBSA-110 or the LART however, the
1808 red LED will simply flash regularly to indicate that the system is
1809 still functional. It is safe to say Y here if you have a CATS
1810 system, but the driver will do nothing.
1811
1812config LEDS_TIMER
1813 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
David Brownelleebdf7d72007-04-02 12:48:10 -07001814 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1815 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001816 depends on LEDS
Kevin Hilman0567a0c2007-03-13 20:29:24 +01001817 depends on !GENERIC_CLOCKEVENTS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818 default y if ARCH_EBSA110
1819 help
1820 If you say Y here, one of the system LEDs (the green one on the
1821 NetWinder, the amber one on the EBSA285, or the red one on the LART)
1822 will flash regularly to indicate that the system is still
1823 operational. This is mainly useful to kernel hackers who are
1824 debugging unstable kernels.
1825
1826 The LART uses the same LED for both Timer LED and CPU usage LED
1827 functions. You may choose to use both, but the Timer LED function
1828 will overrule the CPU usage LED.
1829
1830config LEDS_CPU
1831 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
David Brownelleebdf7d72007-04-02 12:48:10 -07001832 !ARCH_OMAP) \
1833 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1834 || MACH_OMAP_PERSEUS2
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835 depends on LEDS
1836 help
1837 If you say Y here, the red LED will be used to give a good real
1838 time indication of CPU usage, by lighting whenever the idle task
1839 is not currently executing.
1840
1841 The LART uses the same LED for both Timer LED and CPU usage LED
1842 functions. You may choose to use both, but the Timer LED function
1843 will overrule the CPU usage LED.
1844
1845config ALIGNMENT_TRAP
1846 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001847 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001848 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001849 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001851 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1853 address divisible by 4. On 32-bit ARM processors, these non-aligned
1854 fetch/store instructions will be emulated in software if you say
1855 here, which has a severe performance impact. This is necessary for
1856 correct operation of some network protocols. With an IP-only
1857 configuration it is safe to say N, otherwise say Y.
1858
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001859config UACCESS_WITH_MEMCPY
1860 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1861 depends on MMU && EXPERIMENTAL
1862 default y if CPU_FEROCEON
1863 help
1864 Implement faster copy_to_user and clear_user methods for CPU
1865 cores where a 8-word STM instruction give significantly higher
1866 memory write throughput than a sequence of individual 32bit stores.
1867
1868 A possible side effect is a slight increase in scheduling latency
1869 between threads sharing the same address space if they invoke
1870 such copy operations with large buffers.
1871
1872 However, if the CPU data cache is using a write-allocate mode,
1873 this option is unlikely to provide any performance gain.
1874
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001875config SECCOMP
1876 bool
1877 prompt "Enable seccomp to safely compute untrusted bytecode"
1878 ---help---
1879 This kernel feature is useful for number crunching applications
1880 that may need to compute untrusted bytecode during their
1881 execution. By using pipes or other transports made available to
1882 the process as file descriptors supporting the read/write
1883 syscalls, it's possible to isolate those applications in
1884 their own address space using seccomp. Once seccomp is
1885 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1886 and the task is only allowed to execute a few safe syscalls
1887 defined by each seccomp mode.
1888
Nicolas Pitrec743f382010-05-24 23:55:42 -04001889config CC_STACKPROTECTOR
1890 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
Russell King4a50bfe2010-12-05 23:06:22 +00001891 depends on EXPERIMENTAL
Nicolas Pitrec743f382010-05-24 23:55:42 -04001892 help
1893 This option turns on the -fstack-protector GCC feature. This
1894 feature puts, at the beginning of functions, a canary value on
1895 the stack just before the return address, and validates
1896 the value just before actually returning. Stack based buffer
1897 overflows (that need to overwrite this return address) now also
1898 overwrite the canary, which gets detected and the attack is then
1899 neutralized via a kernel panic.
1900 This feature requires gcc version 4.2 or above.
1901
Uwe Kleine-König73a65b32010-01-19 10:13:14 +01001902config DEPRECATED_PARAM_STRUCT
1903 bool "Provide old way to pass kernel parameters"
1904 help
1905 This was deprecated in 2001 and announced to live on for 5 years.
1906 Some old boot loaders still use this way.
1907
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908endmenu
1909
1910menu "Boot options"
1911
Grant Likely9eb8f672011-04-28 14:27:20 -06001912config USE_OF
1913 bool "Flattened Device Tree support"
1914 select OF
1915 select OF_EARLY_FLATTREE
Grant Likely08a543a2011-07-26 03:19:06 -06001916 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001917 help
1918 Include support for flattened device tree machine descriptions.
1919
Linus Torvalds1da177e2005-04-16 15:20:36 -07001920# Compressed boot loader in ROM. Yes, we really want to ask about
1921# TEXT and BSS so we preserve their values in the config files.
1922config ZBOOT_ROM_TEXT
1923 hex "Compressed ROM boot loader base address"
1924 default "0"
1925 help
1926 The physical address at which the ROM-able zImage is to be
1927 placed in the target. Platforms which normally make use of
1928 ROM-able zImage formats normally set this to a suitable
1929 value in their defconfig file.
1930
1931 If ZBOOT_ROM is not enabled, this has no effect.
1932
1933config ZBOOT_ROM_BSS
1934 hex "Compressed ROM boot loader BSS address"
1935 default "0"
1936 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001937 The base address of an area of read/write memory in the target
1938 for the ROM-able zImage which must be available while the
1939 decompressor is running. It must be large enough to hold the
1940 entire decompressed kernel plus an additional 128 KiB.
1941 Platforms which normally make use of ROM-able zImage formats
1942 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001943
1944 If ZBOOT_ROM is not enabled, this has no effect.
1945
1946config ZBOOT_ROM
1947 bool "Compressed boot loader in ROM/flash"
1948 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1949 help
1950 Say Y here if you intend to execute your compressed kernel image
1951 (zImage) directly from ROM or flash. If unsure, say N.
1952
Simon Horman090ab3f2011-04-26 06:29:53 +01001953choice
1954 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1955 depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1956 default ZBOOT_ROM_NONE
1957 help
1958 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001959 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001960 kernel image to an MMC or SD card and boot the kernel straight
1961 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001962 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001963 rest the kernel image to RAM.
1964
1965config ZBOOT_ROM_NONE
1966 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1967 help
1968 Do not load image from SD or MMC
1969
Simon Hormanf45b1142011-01-11 04:01:08 +01001970config ZBOOT_ROM_MMCIF
1971 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001972 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001973 Load image from MMCIF hardware block.
1974
1975config ZBOOT_ROM_SH_MOBILE_SDHI
1976 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1977 help
1978 Load image from SDHI hardware block
1979
1980endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001981
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001982config ARM_APPENDED_DTB
1983 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1984 depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1985 help
1986 With this option, the boot code will look for a device tree binary
1987 (DTB) appended to zImage
1988 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1989
1990 This is meant as a backward compatibility convenience for those
1991 systems with a bootloader that can't be upgraded to accommodate
1992 the documented boot protocol using a device tree.
1993
1994 Beware that there is very little in terms of protection against
1995 this option being confused by leftover garbage in memory that might
1996 look like a DTB header after a reboot if no actual DTB is appended
1997 to zImage. Do not leave this option active in a production kernel
1998 if you don't intend to always append a DTB. Proper passing of the
1999 location into r2 of a bootloader provided DTB is always preferable
2000 to this option.
2001
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002002config ARM_ATAG_DTB_COMPAT
2003 bool "Supplement the appended DTB with traditional ATAG information"
2004 depends on ARM_APPENDED_DTB
2005 help
2006 Some old bootloaders can't be updated to a DTB capable one, yet
2007 they provide ATAGs with memory configuration, the ramdisk address,
2008 the kernel cmdline string, etc. Such information is dynamically
2009 provided by the bootloader and can't always be stored in a static
2010 DTB. To allow a device tree enabled kernel to be used with such
2011 bootloaders, this option allows zImage to extract the information
2012 from the ATAG list and store it at run time into the appended DTB.
2013
Genoud Richardd0f34a112012-06-26 16:37:59 +01002014choice
2015 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2016 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2017
2018config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2019 bool "Use bootloader kernel arguments if available"
2020 help
2021 Uses the command-line options passed by the boot loader instead of
2022 the device tree bootargs property. If the boot loader doesn't provide
2023 any, the device tree bootargs property will be used.
2024
2025config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2026 bool "Extend with bootloader kernel arguments"
2027 help
2028 The command-line arguments provided by the boot loader will be
2029 appended to the the device tree bootargs property.
2030
2031endchoice
2032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033config CMDLINE
2034 string "Default kernel command string"
2035 default ""
2036 help
2037 On some architectures (EBSA110 and CATS), there is currently no way
2038 for the boot loader to pass arguments to the kernel. For these
2039 architectures, you should supply some command-line options at build
2040 time by entering them here. As a minimum, you should specify the
2041 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2042
Victor Boivie4394c122011-05-04 17:07:55 +01002043choice
2044 prompt "Kernel command line type" if CMDLINE != ""
2045 default CMDLINE_FROM_BOOTLOADER
2046
2047config CMDLINE_FROM_BOOTLOADER
2048 bool "Use bootloader kernel arguments if available"
2049 help
2050 Uses the command-line options passed by the boot loader. If
2051 the boot loader doesn't provide any, the default kernel command
2052 string provided in CMDLINE will be used.
2053
2054config CMDLINE_EXTEND
2055 bool "Extend bootloader kernel arguments"
2056 help
2057 The command-line arguments provided by the boot loader will be
2058 appended to the default kernel command string.
2059
Alexander Holler92d20402010-02-16 19:04:53 +01002060config CMDLINE_FORCE
2061 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002062 help
2063 Always use the default kernel command string, even if the boot
2064 loader passes other arguments to the kernel.
2065 This is useful if you cannot or don't want to change the
2066 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002067endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002068
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069config XIP_KERNEL
2070 bool "Kernel Execute-In-Place from ROM"
Catalin Marinas497b7e92011-11-22 17:30:32 +00002071 depends on !ZBOOT_ROM && !ARM_LPAE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002072 help
2073 Execute-In-Place allows the kernel to run from non-volatile storage
2074 directly addressable by the CPU, such as NOR flash. This saves RAM
2075 space since the text section of the kernel is not loaded from flash
2076 to RAM. Read-write sections, such as the data section and stack,
2077 are still copied to RAM. The XIP kernel is not compressed since
2078 it has to run directly from flash, so it will take more space to
2079 store it. The flash address used to link the kernel object files,
2080 and for storing it, is configuration dependent. Therefore, if you
2081 say Y here, you must know the proper physical address where to
2082 store the kernel image depending on your own flash memory usage.
2083
2084 Also note that the make target becomes "make xipImage" rather than
2085 "make zImage" or "make Image". The final kernel binary to put in
2086 ROM memory will be arch/arm/boot/xipImage.
2087
2088 If unsure, say N.
2089
2090config XIP_PHYS_ADDR
2091 hex "XIP Kernel Physical Location"
2092 depends on XIP_KERNEL
2093 default "0x00080000"
2094 help
2095 This is the physical address in your flash memory the kernel will
2096 be linked for and stored to. This address is dependent on your
2097 own flash usage.
2098
Richard Purdiec587e4a2007-02-06 21:29:00 +01002099config KEXEC
2100 bool "Kexec system call (EXPERIMENTAL)"
Will Deacon02b73e22011-06-06 15:49:23 +01002101 depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002102 help
2103 kexec is a system call that implements the ability to shutdown your
2104 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002105 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002106 you can start any kernel with it, not just Linux.
2107
2108 It is an ongoing process to be certain the hardware in a machine
2109 is properly shutdown, so do not be surprised if this code does not
2110 initially work for you. It may help to enable device hotplugging
2111 support.
2112
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002113config ATAGS_PROC
2114 bool "Export atags in procfs"
Uli Luckasb98d7292008-02-22 16:45:18 +01002115 depends on KEXEC
2116 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002117 help
2118 Should the atags used to boot the kernel be exported in an "atags"
2119 file in procfs. Useful with kexec.
2120
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002121config CRASH_DUMP
2122 bool "Build kdump crash kernel (EXPERIMENTAL)"
2123 depends on EXPERIMENTAL
2124 help
2125 Generate crash dump after being started by kexec. This should
2126 be normally only set in special crash dump kernels which are
2127 loaded in the main kernel with kexec-tools into a specially
2128 reserved region and then later executed after a crash by
2129 kdump/kexec. The crash dump kernel must be compiled to a
2130 memory address not used by the main kernel
2131
2132 For more details see Documentation/kdump/kdump.txt
2133
Eric Miaoe69edc792010-07-05 15:56:50 +02002134config AUTO_ZRELADDR
2135 bool "Auto calculation of the decompressed kernel image address"
2136 depends on !ZBOOT_ROM && !ARCH_U300
2137 help
2138 ZRELADDR is the physical address where the decompressed kernel
2139 image will be placed. If AUTO_ZRELADDR is selected, the address
2140 will be determined at run-time by masking the current IP with
2141 0xf8000000. This assumes the zImage being placed in the first 128MB
2142 from start of memory.
2143
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144endmenu
2145
Russell Kingac9d7ef2008-08-18 17:26:00 +01002146menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147
Ben Dooks89c52ed2009-07-30 23:23:24 +01002148if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149
2150source "drivers/cpufreq/Kconfig"
2151
Yong Shen64f102b2010-10-21 21:18:59 +08002152config CPU_FREQ_IMX
2153 tristate "CPUfreq driver for i.MX CPUs"
2154 depends on ARCH_MXC && CPU_FREQ
2155 help
2156 This enables the CPUfreq driver for i.MX CPUs.
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158config CPU_FREQ_SA1100
2159 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160
2161config CPU_FREQ_SA1110
2162 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163
2164config CPU_FREQ_INTEGRATOR
2165 tristate "CPUfreq driver for ARM Integrator CPUs"
2166 depends on ARCH_INTEGRATOR && CPU_FREQ
2167 default y
2168 help
2169 This enables the CPUfreq driver for ARM Integrator CPUs.
2170
2171 For details, take a look at <file:Documentation/cpu-freq>.
2172
2173 If in doubt, say Y.
2174
Russell King9e2697f2007-12-14 13:30:14 +00002175config CPU_FREQ_PXA
2176 bool
2177 depends on CPU_FREQ && ARCH_PXA && PXA25x
2178 default y
Arnd Bergmannca7d1562011-10-01 22:03:51 +02002179 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002180 select CPU_FREQ_DEFAULT_GOV_USERSPACE
2181
Ben Dooks9d56c022009-07-30 23:23:25 +01002182config CPU_FREQ_S3C
2183 bool
2184 help
2185 Internal configuration node for common cpufreq on Samsung SoC
2186
2187config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002188 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kukjin Kimb130d5c2012-02-03 14:29:23 +09002189 depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
Ben Dooks9d56c022009-07-30 23:23:25 +01002190 select CPU_FREQ_S3C
2191 help
2192 This enables the CPUfreq driver for the Samsung S3C24XX family
2193 of CPUs.
2194
2195 For details, take a look at <file:Documentation/cpu-freq>.
2196
2197 If in doubt, say N.
2198
2199config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002200 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Ben Dooks9d56c022009-07-30 23:23:25 +01002201 depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
2202 help
2203 Compile in support for changing the PLL frequency from the
2204 S3C24XX series CPUfreq driver. The PLL takes time to settle
2205 after a frequency change, so by default it is not enabled.
2206
2207 This also means that the PLL tables for the selected CPU(s) will
2208 be built which may increase the size of the kernel image.
2209
2210config CPU_FREQ_S3C24XX_DEBUG
2211 bool "Debug CPUfreq Samsung driver core"
2212 depends on CPU_FREQ_S3C24XX
2213 help
2214 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2215
2216config CPU_FREQ_S3C24XX_IODEBUG
2217 bool "Debug CPUfreq Samsung driver IO timing"
2218 depends on CPU_FREQ_S3C24XX
2219 help
2220 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2221
Ben Dookse6d197a2009-07-30 23:23:42 +01002222config CPU_FREQ_S3C24XX_DEBUGFS
2223 bool "Export debugfs for CPUFreq"
2224 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2225 help
2226 Export status information via debugfs.
2227
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228endif
2229
Russell Kingac9d7ef2008-08-18 17:26:00 +01002230source "drivers/cpuidle/Kconfig"
2231
2232endmenu
2233
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234menu "Floating point emulation"
2235
2236comment "At least one emulation must be selected"
2237
2238config FPE_NWFPE
2239 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002240 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 ---help---
2242 Say Y to include the NWFPE floating point emulator in the kernel.
2243 This is necessary to run most binaries. Linux does not currently
2244 support floating point hardware so you need to say Y here even if
2245 your machine has an FPA or floating point co-processor podule.
2246
2247 You may say N here if you are going to load the Acorn FPEmulator
2248 early in the bootup.
2249
2250config FPE_NWFPE_XP
2251 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002252 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253 help
2254 Say Y to include 80-bit support in the kernel floating-point
2255 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2256 Note that gcc does not generate 80-bit operations by default,
2257 so in most cases this option only enlarges the size of the
2258 floating point emulator without any good reason.
2259
2260 You almost surely want to say N here.
2261
2262config FPE_FASTFPE
2263 bool "FastFPE math emulation (EXPERIMENTAL)"
Nicolas Pitre8993a442006-01-14 16:36:50 +00002264 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002265 ---help---
2266 Say Y here to include the FAST floating point emulator in the kernel.
2267 This is an experimental much faster emulator which now also has full
2268 precision for the mantissa. It does not support any exceptions.
2269 It is very simple, and approximately 3-6 times faster than NWFPE.
2270
2271 It should be sufficient for most programs. It may be not suitable
2272 for scientific calculations, but you have to check this for yourself.
2273 If you do not feel you need a faster FP emulation you should better
2274 choose NWFPE.
2275
2276config VFP
2277 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002278 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002279 help
2280 Say Y to include VFP support code in the kernel. This is needed
2281 if your hardware includes a VFP unit.
2282
2283 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2284 release notes and additional status information.
2285
2286 Say N if your target does not have VFP hardware.
2287
Catalin Marinas25ebee02007-09-25 15:22:24 +01002288config VFPv3
2289 bool
2290 depends on VFP
2291 default y if CPU_V7
2292
Catalin Marinasb5872db2008-01-10 19:16:17 +01002293config NEON
2294 bool "Advanced SIMD (NEON) Extension support"
2295 depends on VFPv3 && CPU_V7
2296 help
2297 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2298 Extension.
2299
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300endmenu
2301
2302menu "Userspace binary formats"
2303
2304source "fs/Kconfig.binfmt"
2305
2306config ARTHUR
2307 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002308 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309 help
2310 Say Y here to include the kernel code necessary if you want to run
2311 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2312 experimental; if this sounds frightening, say N and sleep in peace.
2313 You can also say M here to compile this support as a module (which
2314 will be called arthur).
2315
2316endmenu
2317
2318menu "Power management options"
2319
Russell Kingeceab4a2005-11-15 11:31:41 +00002320source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321
Johannes Bergf4cb5702007-12-08 02:14:00 +01002322config ARCH_SUSPEND_POSSIBLE
Stephen Warren3d5e8af2012-04-13 15:30:07 -06002323 depends on !ARCH_S5PC100 && !ARCH_TEGRA
Russell King6a786182011-04-02 10:15:28 +01002324 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002325 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002326 def_bool y
2327
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002328config ARM_CPU_SUSPEND
2329 def_bool PM_SLEEP
2330
Linus Torvalds1da177e2005-04-16 15:20:36 -07002331endmenu
2332
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002333source "net/Kconfig"
2334
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002335source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336
2337source "fs/Kconfig"
2338
Linus Torvalds1da177e2005-04-16 15:20:36 -07002339source "arch/arm/Kconfig.debug"
2340
2341source "security/Kconfig"
2342
2343source "crypto/Kconfig"
2344
2345source "lib/Kconfig"