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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Rutland3d067702012-10-30 12:13:42 +00007 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell Kingb1b3f492012-10-06 17:12:25 +01008 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +01009 select BUILDTIME_EXTABLE_SORT if MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010010 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010011 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010012 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
13 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_PCI_IOMAP
17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_STRNCPY_FROM_USER
19 select GENERIC_STRNLEN_USER
20 select HARDIRQS_SW_RESEND
21 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010022 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060023 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010024 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010025 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010026 select HAVE_BPF_JIT
27 select HAVE_C_RECORDMCOUNT
28 select HAVE_DEBUG_KMEMLEAK
29 select HAVE_DMA_API_DEBUG
30 select HAVE_DMA_ATTRS
31 select HAVE_DMA_CONTIGUOUS if MMU
32 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
33 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
34 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
35 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
36 select HAVE_GENERIC_DMA_COHERENT
37 select HAVE_GENERIC_HARDIRQS
38 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
39 select HAVE_IDE if PCI || ISA || PCMCIA
Russell Kingb1b3f492012-10-06 17:12:25 +010040 select HAVE_KERNEL_GZIP
41 select HAVE_KERNEL_LZMA
42 select HAVE_KERNEL_LZO
43 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010044 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080045 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_MEMBLOCK
47 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010048 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010049 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070051 select HAVE_UID16
Stephen Rothwell887cbce02013-02-27 17:05:48 -080052 select HAVE_VIRT_TO_BUS
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000053 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010054 select PERF_USE_VMALLOC
55 select RTC_LIB
56 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093057 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
58 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040059 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050060 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050061 select OLD_SIGACTION
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 help
63 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000064 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000066 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 Europe. There is an ARM Linux project with a web page at
68 <http://www.arm.linux.org.uk/>.
69
Russell King74facff2011-06-02 11:16:22 +010070config ARM_HAS_SG_CHAIN
71 bool
72
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020073config NEED_SG_DMA_LENGTH
74 bool
75
76config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020077 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010078 select ARM_HAS_SG_CHAIN
79 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020080
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090081if ARM_DMA_USE_IOMMU
82
83config ARM_DMA_IOMMU_ALIGNMENT
84 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
85 range 4 9
86 default 8
87 help
88 DMA mapping framework by default aligns all buffers to the smallest
89 PAGE_SIZE order which is greater than or equal to the requested buffer
90 size. This works well for buffers up to a few hundreds kilobytes, but
91 for larger buffers it just a waste of address space. Drivers which has
92 relatively small addressing window (like 64Mib) might run out of
93 virtual space with just a few allocations.
94
95 With this parameter you can specify the maximum PAGE_SIZE order for
96 DMA IOMMU buffers. Larger buffers will be aligned only to this
97 specified order. The order is expressed as a power of two multiplied
98 by the PAGE_SIZE.
99
100endif
101
Russell King1a189b92008-04-13 21:41:55 +0100102config HAVE_PWM
103 bool
104
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100105config MIGHT_HAVE_PCI
106 bool
107
Ralf Baechle75e71532007-02-09 17:08:58 +0000108config SYS_SUPPORTS_APM_EMULATION
109 bool
110
David Brownell0a938b92007-03-05 00:30:18 -0800111config GENERIC_GPIO
112 bool
David Brownell0a938b92007-03-05 00:30:18 -0800113
Linus Walleijbc581772009-09-15 17:30:37 +0100114config HAVE_TCM
115 bool
116 select GENERIC_ALLOCATOR
117
Russell Kinge119bff2010-01-10 17:23:29 +0000118config HAVE_PROC_CPU
119 bool
120
Al Viro5ea81762007-02-11 15:41:31 +0000121config NO_IOPORT
122 bool
Al Viro5ea81762007-02-11 15:41:31 +0000123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124config EISA
125 bool
126 ---help---
127 The Extended Industry Standard Architecture (EISA) bus was
128 developed as an open alternative to the IBM MicroChannel bus.
129
130 The EISA bus provided some of the features of the IBM MicroChannel
131 bus while maintaining backward compatibility with cards made for
132 the older ISA bus. The EISA bus saw limited use between 1988 and
133 1995 when it was made obsolete by the PCI bus.
134
135 Say Y here if you are building a kernel for an EISA-based machine.
136
137 Otherwise, say N.
138
139config SBUS
140 bool
141
Russell Kingf16fb1e2007-04-28 09:59:37 +0100142config STACKTRACE_SUPPORT
143 bool
144 default y
145
Nicolas Pitref76e9152008-04-24 01:31:46 -0400146config HAVE_LATENCYTOP_SUPPORT
147 bool
148 depends on !SMP
149 default y
150
Russell Kingf16fb1e2007-04-28 09:59:37 +0100151config LOCKDEP_SUPPORT
152 bool
153 default y
154
Russell King7ad1bcb2006-08-27 12:07:02 +0100155config TRACE_IRQFLAGS_SUPPORT
156 bool
157 default y
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config RWSEM_GENERIC_SPINLOCK
160 bool
161 default y
162
163config RWSEM_XCHGADD_ALGORITHM
164 bool
165
David Howellsf0d1b0b2006-12-08 02:37:49 -0800166config ARCH_HAS_ILOG2_U32
167 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800168
169config ARCH_HAS_ILOG2_U64
170 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800171
Ben Dooks89c52ed2009-07-30 23:23:24 +0100172config ARCH_HAS_CPUFREQ
173 bool
174 help
175 Internal node to signify that the ARCH has CPUFREQ support
176 and that the relevant menu configurations are displayed for
177 it.
178
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800179config GENERIC_HWEIGHT
180 bool
181 default y
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183config GENERIC_CALIBRATE_DELAY
184 bool
185 default y
186
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100187config ARCH_MAY_HAVE_PC_FDC
188 bool
189
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800190config ZONE_DMA
191 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800192
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800193config NEED_DMA_MAP_STATE
194 def_bool y
195
Rob Herring58af4a22012-03-20 14:33:01 -0500196config ARCH_HAS_DMA_SET_COHERENT_MASK
197 bool
198
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199config GENERIC_ISA_DMA
200 bool
201
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202config FIQ
203 bool
204
Rob Herring13a50452012-02-07 09:28:22 -0600205config NEED_RET_TO_USER
206 bool
207
Al Viro034d2f52005-12-19 16:27:59 -0500208config ARCH_MTD_XIP
209 bool
210
Hyok S. Choic760fc12006-03-27 15:18:50 +0100211config VECTORS_BASE
212 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900213 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100214 default DRAM_BASE if REMAP_VECTORS_TO_RAM
215 default 0x00000000
216 help
217 The base address of exception vectors.
218
Russell Kingdc21af92011-01-04 19:09:43 +0000219config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100220 bool "Patch physical to virtual translations at runtime" if EMBEDDED
221 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100222 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000223 depends on !ARCH_REALVIEW || !SPARSEMEM
224 help
Russell King111e9a52011-05-12 10:02:42 +0100225 Patch phys-to-virt and virt-to-phys translation functions at
226 boot and module load time according to the position of the
227 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000228
Russell King111e9a52011-05-12 10:02:42 +0100229 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100230 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000231
Russell Kingc1beced2011-08-10 10:23:45 +0100232 Only disable this option if you know that you do not require
233 this feature (eg, building a kernel for a single machine) and
234 you need to shrink the kernel to the minimal size.
235
Rob Herring01464222012-08-28 13:06:41 -0500236config NEED_MACH_GPIO_H
237 bool
238 help
239 Select this when mach/gpio.h is required to provide special
240 definitions for this platform. The need for mach/gpio.h should
241 be avoided when possible.
242
Rob Herringc334bc12012-03-04 22:03:33 -0600243config NEED_MACH_IO_H
244 bool
245 help
246 Select this when mach/io.h is required to provide special
247 definitions for this platform. The need for mach/io.h should
248 be avoided when possible.
249
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400250config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400251 bool
Russell King111e9a52011-05-12 10:02:42 +0100252 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400253 Select this when mach/memory.h is required to provide special
254 definitions for this platform. The need for mach/memory.h should
255 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400256
257config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100258 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400259 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100260 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400261 help
262 Please provide the physical address corresponding to the
263 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000264
Simon Glass87e040b2011-08-16 23:44:26 +0100265config GENERIC_BUG
266 def_bool y
267 depends on BUG
268
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269source "init/Kconfig"
270
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700271source "kernel/Kconfig.freezer"
272
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273menu "System Type"
274
Hyok S. Choi3c427972009-07-24 12:35:00 +0100275config MMU
276 bool "MMU-based Paged Memory Management Support"
277 default y
278 help
279 Select if you want MMU-based virtualised addressing space
280 support by paged memory management. If unsure, say 'Y'.
281
Russell Kingccf50e22010-03-15 19:03:06 +0000282#
283# The "ARM system type" choice list is ordered alphabetically by option
284# text. Please add new entries in the option alphabetic order.
285#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286choice
287 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100288 default ARCH_VERSATILE if !MMU
289 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
Rob Herring387798b2012-09-06 13:41:12 -0500291config ARCH_MULTIPLATFORM
292 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100293 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500294 select ARM_PATCH_PHYS_VIRT
295 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600296 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500297 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600298 select SPARSE_IRQ
299 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600300
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100301config ARCH_INTEGRATOR
302 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100303 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100304 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200305 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200306 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100307 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100308 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000309 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100310 select MULTI_IRQ_HANDLER
311 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000312 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100313 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100314 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100315 help
316 Support for ARM's Integrator platform.
317
318config ARCH_REALVIEW
319 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100320 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100322 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200323 select COMMON_CLK
324 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100325 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select GPIO_PL061 if GPIOLIB
327 select ICST
328 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000329 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000330 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100331 help
332 This enables support for ARM Ltd RealView boards.
333
334config ARCH_VERSATILE
335 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100336 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100338 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100339 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100340 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100341 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900342 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000343 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000344 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000345 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100346 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100347 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100348 help
349 This enables support for ARM Ltd Versatile board.
350
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100351config ARCH_AT91
352 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100353 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100354 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100355 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100356 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500357 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500358 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800359 select PINCTRL
360 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100361 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100362 This enables support for systems based on Atmel
363 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100364
Simon Arlottec9653b2012-05-26 01:04:43 -0600365config ARCH_BCM2835
366 bool "Broadcom BCM2835 family"
Stephen Warren805504a2012-09-27 21:54:21 -0600367 select ARCH_REQUIRE_GPIOLIB
Simon Arlottec9653b2012-05-26 01:04:43 -0600368 select ARM_AMBA
369 select ARM_ERRATA_411920
370 select ARM_TIMER_SP804
371 select CLKDEV_LOOKUP
Stephen Warrenc1b724f2013-01-03 20:23:13 -0700372 select CLKSRC_OF
Simon Arlottec9653b2012-05-26 01:04:43 -0600373 select COMMON_CLK
374 select CPU_V6
375 select GENERIC_CLOCKEVENTS
376 select MULTI_IRQ_HANDLER
Stephen Warren805504a2012-09-27 21:54:21 -0600377 select PINCTRL
378 select PINCTRL_BCM2835
Simon Arlottec9653b2012-05-26 01:04:43 -0600379 select SPARSE_IRQ
380 select USE_OF
381 help
382 This enables support for the Broadcom BCM2835 SoC. This SoC is
383 use in the Raspberry Pi, and Roku 2 devices.
384
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300385config ARCH_CNS3XXX
386 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100387 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200388 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300389 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000390 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100391 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400392 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300393 help
394 Support for Cavium Networks CNS3XXX platform.
395
Russell King93e22562012-10-12 14:20:52 +0100396config ARCH_CLPS711X
397 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400398 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400399 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100400 select CLKDEV_LOOKUP
401 select COMMON_CLK
402 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400403 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400404 select MULTI_IRQ_HANDLER
Russell King93e22562012-10-12 14:20:52 +0100405 select NEED_MACH_MEMORY_H
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400406 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100407 help
408 Support for Cirrus Logic 711x/721x/731x based boards.
409
Russell King788c9702009-04-26 14:21:59 +0100410config ARCH_GEMINI
411 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100412 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000413 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann662146b2013-01-04 13:38:03 +0000414 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100415 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100416 help
417 Support for the Cortina Systems Gemini family SoCs
418
Barry Song156a0992012-08-23 13:41:58 +0800419config ARCH_SIRF
420 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000421 select ARCH_REQUIRE_GPIOLIB
Barry Song20ddfa92012-12-20 17:14:10 +0800422 select AUTO_ZRELADDR
Binghua Duan198678b2012-08-20 06:42:36 +0000423 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100424 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200425 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000426 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100427 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800428 select PINCTRL
429 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200430 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200431 help
Barry Song156a0992012-08-23 13:41:58 +0800432 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200433
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434config ARCH_EBSA110
435 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100436 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000437 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100438 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600439 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400440 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100441 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 help
443 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000444 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 Ethernet interface, two PCMCIA sockets, two serial ports and a
446 parallel port.
447
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000448config ARCH_EP93XX
449 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100450 select ARCH_HAS_HOLES_MEMORYMODEL
451 select ARCH_REQUIRE_GPIOLIB
452 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000453 select ARM_AMBA
454 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100455 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100456 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100457 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000458 help
459 This enables support for the Cirrus EP93xx series of CPUs.
460
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461config ARCH_FOOTBRIDGE
462 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000465 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200466 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600467 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400468 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000469 help
470 Support for systems based on the DC21285 companion chip
471 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800473config ARCH_MXS
474 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800475 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100476 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100477 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800478 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100479 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800480 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800481 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800482 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800483 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800484 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800485 help
486 Support for Freescale MXS-based family of processors
487
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100488config ARCH_NETX
489 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100490 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100491 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000492 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100493 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000494 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100495 This enables support for systems based on the Hilscher NetX Soc
496
497config ARCH_H720X
498 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100499 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100501 select ISA_DMA_API
502 help
503 This enables support for systems based on the Hynix HMS720x
504
Russell King3b938be2007-05-12 11:25:44 +0100505config ARCH_IOP13XX
506 bool "IOP13xx-based"
507 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100508 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100509 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400510 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600511 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100512 select PCI
513 select PLAT_IOP
514 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100515 help
516 Support for Intel's IOP13XX (XScale) family of processors.
517
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100518config ARCH_IOP32X
519 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100520 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100521 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000522 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500523 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600524 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100525 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100526 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000527 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100528 Support for Intel's 80219 and IOP32X (XScale) family of
529 processors.
530
531config ARCH_IOP33X
532 bool "IOP33x-based"
533 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100534 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000535 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500536 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600537 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100538 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100539 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100540 help
541 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542
Russell King3b938be2007-05-12 11:25:44 +0100543config ARCH_IXP4XX
544 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100545 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500546 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100547 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100548 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000549 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100550 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100551 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100552 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600553 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100554 help
Russell King3b938be2007-05-12 11:25:44 +0100555 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100556
Saeed Bisharaedabd382009-08-06 15:12:43 +0300557config ARCH_DOVE
558 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300559 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth5b03df92012-11-17 15:22:27 +0100560 select COMMON_CLK_DOVE
Russell Kingb1b3f492012-10-06 17:12:25 +0100561 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300562 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100563 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100564 select PINCTRL
565 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200566 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100567 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300568 help
569 Support for the Marvell Dove SoC 88AP510
570
Saeed Bishara651c74c2008-06-22 22:45:06 +0200571config ARCH_KIRKWOOD
572 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700573 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200575 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100576 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700577 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100578 select PINCTRL
579 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200580 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200581 help
582 Support for the following Marvell Kirkwood series SoCs:
583 88F6180, 88F6192 and 88F6281.
584
Russell King788c9702009-04-26 14:21:59 +0100585config ARCH_MV78XX0
586 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700587 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100588 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100589 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100590 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200591 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100592 help
593 Support for the following Marvell MV78xx0 series SoCs:
594 MV781x0, MV782x0.
595
596config ARCH_ORION5X
597 bool "Marvell Orion"
598 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700599 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100600 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100601 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100602 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200603 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100604 help
605 Support for the following Marvell Orion 5x series SoCs:
606 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
607 Orion-2 (5281), Orion-1-90 (6183).
608
609config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500610 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100611 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100612 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100613 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100614 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100615 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800616 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800617 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100618 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800619 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100620 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400621 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100622 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500623 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100624
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100625config ARCH_KS8695
626 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100627 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200628 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100629 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200630 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100631 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100632 help
633 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
634 System-on-Chip devices.
635
Russell King788c9702009-04-26 14:21:59 +0100636config ARCH_W90X900
637 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100638 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100639 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100640 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100642 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200643 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100644 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
645 At present, the w90x900 has been renamed nuc900, regarding
646 the ARM series product line, you can login the following
647 link address to know more.
648
649 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
650 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400651
Russell King93e22562012-10-12 14:20:52 +0100652config ARCH_LPC32XX
653 bool "NXP LPC32XX"
654 select ARCH_REQUIRE_GPIOLIB
655 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000656 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100657 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100658 select CPU_ARM926T
659 select GENERIC_CLOCKEVENTS
660 select HAVE_IDE
661 select HAVE_PWM
662 select USB_ARCH_HAS_OHCI
663 select USE_OF
664 help
665 Support for the NXP LPC32XX family of processors
666
wanzongshuna62e9032009-12-31 15:06:05 +0100667config ARCH_TEGRA
668 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100669 select ARCH_HAS_CPUFREQ
Stephen Warren23c8c4b2013-02-07 14:43:23 -0700670 select ARCH_REQUIRE_GPIOLIB
Erik Gillingc5f80062010-01-21 16:53:02 -0800671 select CLKDEV_LOOKUP
672 select CLKSRC_MMIO
Stephen Warren1711b1e2012-10-23 11:52:53 -0600673 select CLKSRC_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100674 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800675 select GENERIC_CLOCKEVENTS
Erik Gillingc5f80062010-01-21 16:53:02 -0800676 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000677 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000678 select MIGHT_HAVE_CACHE_L2X0
Stephen Warrenc5a4d6b2012-09-19 14:19:02 -0600679 select SPARSE_IRQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600680 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800681 help
682 This enables support for NVIDIA Tegra based systems (Tegra APX,
683 Tegra 6xx and Tegra 2 series).
684
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700686 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100687 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100688 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100689 select ARCH_MTD_XIP
690 select ARCH_REQUIRE_GPIOLIB
691 select ARM_CPU_SUSPEND if PM
692 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100693 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100694 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100695 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800696 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100697 select HAVE_IDE
698 select MULTI_IRQ_HANDLER
699 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800700 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800701 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000702 help
eric miao2c8086a2007-09-11 19:13:17 -0700703 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704
Russell King788c9702009-04-26 14:21:59 +0100705config ARCH_MSM
706 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700707 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800708 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select GENERIC_CLOCKEVENTS
710 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800711 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800712 Support for Qualcomm MSM/QSD based systems. This runs on the
713 apps processor of the MSM/QSD and depends on a shared memory
714 interface to the modem processor which runs the baseband
715 stack and controls some vital subsystems
716 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800717
Magnus Dammc793c1b2010-02-05 11:14:49 +0000718config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900719 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900720 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100721 select GENERIC_CLOCKEVENTS
722 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900723 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000724 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000725 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000726 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400727 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select NO_IOPORT
Laurent Pincharta47029c2012-12-15 23:50:56 +0100729 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select PM_GENERIC_DOMAINS if PM
731 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000732 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900733 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000734
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735config ARCH_RPC
736 bool "RiscPC"
737 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100738 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100739 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000740 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200742 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select HAVE_PATA_PLATFORM
744 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600745 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400746 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100747 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 help
749 On the Acorn Risc-PC, Linux can support the internal IDE disk and
750 CD-ROM interface, serial and parallel port, and the floppy drive.
751
752config ARCH_SA1100
753 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100754 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700756 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select ARCH_SPARSEMEM_ENABLE
758 select CLKDEV_LOOKUP
759 select CLKSRC_MMIO
760 select CPU_FREQ
761 select CPU_SA1100
762 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200763 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100764 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500765 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400766 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100767 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000768 help
769 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900771config ARCH_S3C24XX
772 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100773 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000774 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100775 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100776 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900777 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900778 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100779 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500780 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600781 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900783 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
784 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
785 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
786 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900787
Ben Dooksa08ab632008-10-21 14:06:39 +0100788config ARCH_S3C64XX
789 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100790 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900791 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100792 select ARCH_USES_GETTIMEOFFSET
793 select ARM_VIC
794 select CLKDEV_LOOKUP
795 select CPU_V6
796 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900797 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900798 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100799 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500800 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select NO_IOPORT
802 select PLAT_SAMSUNG
803 select S3C_DEV_NAND
804 select S3C_GPIO_TRACK
805 select SAMSUNG_CLKSRC
806 select SAMSUNG_GPIOLIB_4BIT
807 select SAMSUNG_IRQ_VIC_TIMER
808 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100809 help
810 Samsung S3C64XX series based systems
811
Kukjin Kim49b7a492010-09-07 15:47:18 +0900812config ARCH_S5P64X0
813 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900814 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900815 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900817 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900819 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900821 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500822 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900823 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900824 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
825 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900826
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200827config ARCH_S5PC100
828 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100829 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900830 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900831 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100832 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900833 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900834 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100835 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500836 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900837 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200838 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900839
Kukjin Kim170f4e42010-02-24 16:40:44 +0900840config ARCH_S5PV210
841 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100842 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900843 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100844 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900845 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900846 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100847 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900848 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100849 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900850 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900851 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100852 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500853 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400854 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900855 help
856 Samsung S5PV210/S5PC110 series based systems
857
Kukjin Kim83014572011-11-06 13:54:56 +0900858config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100859 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100860 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900861 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100862 select ARCH_SPARSEMEM_ENABLE
863 select CLKDEV_LOOKUP
864 select CPU_V7
865 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900866 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900867 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900868 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100869 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500870 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400871 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900872 help
Kukjin Kim83014572011-11-06 13:54:56 +0900873 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875config ARCH_SHARK
876 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100877 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000878 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100879 select ISA
880 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400881 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100882 select PCI
883 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000884 help
885 Support for the StrongARM based Digital DNARD machine, also known
886 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Linus Walleijd98aac72009-04-27 10:21:46 +0100888config ARCH_U300
889 bool "ST-Ericsson U300 Series"
890 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100891 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100892 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200893 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100894 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100895 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100896 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200897 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100898 select CPU_ARM926T
899 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100900 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200901 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100902 help
903 Support for ST-Ericsson U300 series mobile platforms.
904
Russell Kingccf50e22010-03-15 19:03:06 +0000905config ARCH_U8500
906 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700907 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100908 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100909 select ARCH_REQUIRE_GPIOLIB
910 select ARM_AMBA
911 select CLKDEV_LOOKUP
912 select CPU_V7
913 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000914 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000915 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200916 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000917 help
918 Support for ST-Ericsson's Ux500 architecture
919
920config ARCH_NOMADIK
921 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100922 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000923 select ARM_AMBA
924 select ARM_VIC
Linus Walleij5f66d482013-01-06 02:25:20 +0100925 select CLKSRC_NOMADIK_MTU
Linus Walleij4a31bd22012-01-11 13:52:34 +0100926 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100927 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000928 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100929 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijf0159412013-02-01 09:52:05 +0100930 select USE_OF
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000931 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200932 select PINCTRL_STN8815
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200933 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000934 help
935 Support for the Nomadik platform by ST-Ericsson
936
Russell King93e22562012-10-12 14:20:52 +0100937config PLAT_SPEAR
938 bool "ST SPEAr"
Deepak Sikri42099322012-11-27 14:05:26 +0100939 select ARCH_HAS_CPUFREQ
Russell King93e22562012-10-12 14:20:52 +0100940 select ARCH_REQUIRE_GPIOLIB
941 select ARM_AMBA
942 select CLKDEV_LOOKUP
943 select CLKSRC_MMIO
944 select COMMON_CLK
945 select GENERIC_CLOCKEVENTS
946 select HAVE_CLK
947 help
948 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
949
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100950config ARCH_DAVINCI
951 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100952 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700953 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100954 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700955 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100956 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100957 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100958 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500959 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530960 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100961 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100962 help
963 Support for TI's DaVinci platform.
964
Tony Lindgrena0694862013-01-11 11:24:20 -0800965config ARCH_OMAP1
966 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600967 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100968 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100969 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800970 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100971 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200972 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100973 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100974 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800975 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100976 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800977 select HAVE_IDE
978 select IRQ_DOMAIN
979 select NEED_MACH_IO_H if PCCARD
980 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100981 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800982 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800983
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984endchoice
985
Rob Herring387798b2012-09-06 13:41:12 -0500986menu "Multiple platform selection"
987 depends on ARCH_MULTIPLATFORM
988
989comment "CPU Core family selection"
990
991config ARCH_MULTI_V4
992 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500993 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100994 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500995
996config ARCH_MULTI_V4T
997 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500998 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100999 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -05001000
1001config ARCH_MULTI_V5
1002 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001003 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001004 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -05001005
1006config ARCH_MULTI_V4_V5
1007 bool
1008
1009config ARCH_MULTI_V6
1010 bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001011 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001012 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001013
1014config ARCH_MULTI_V7
1015 bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001016 default y
1017 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001018 select ARCH_VEXPRESS
1019 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001020
1021config ARCH_MULTI_V6_V7
1022 bool
1023
1024config ARCH_MULTI_CPU_AUTO
1025 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1026 select ARCH_MULTI_V5
1027
1028endmenu
1029
Russell Kingccf50e22010-03-15 19:03:06 +00001030#
1031# This is sorted alphabetically by mach-* pathname. However, plat-*
1032# Kconfigs may be included either alphabetically (according to the
1033# plat- suffix) or along side the corresponding mach-* source.
1034#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001035source "arch/arm/mach-mvebu/Kconfig"
1036
Russell King95b8f202010-01-14 11:43:54 +00001037source "arch/arm/mach-at91/Kconfig"
1038
Christian Daudt8ac49e02012-11-19 09:46:10 -08001039source "arch/arm/mach-bcm/Kconfig"
1040
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041source "arch/arm/mach-clps711x/Kconfig"
1042
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001043source "arch/arm/mach-cns3xxx/Kconfig"
1044
Russell King95b8f202010-01-14 11:43:54 +00001045source "arch/arm/mach-davinci/Kconfig"
1046
1047source "arch/arm/mach-dove/Kconfig"
1048
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001049source "arch/arm/mach-ep93xx/Kconfig"
1050
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051source "arch/arm/mach-footbridge/Kconfig"
1052
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001053source "arch/arm/mach-gemini/Kconfig"
1054
Russell King95b8f202010-01-14 11:43:54 +00001055source "arch/arm/mach-h720x/Kconfig"
1056
Rob Herring387798b2012-09-06 13:41:12 -05001057source "arch/arm/mach-highbank/Kconfig"
1058
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059source "arch/arm/mach-integrator/Kconfig"
1060
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001061source "arch/arm/mach-iop32x/Kconfig"
1062
1063source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Dan Williams285f5fa2006-12-07 02:59:39 +01001065source "arch/arm/mach-iop13xx/Kconfig"
1066
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067source "arch/arm/mach-ixp4xx/Kconfig"
1068
Russell King95b8f202010-01-14 11:43:54 +00001069source "arch/arm/mach-kirkwood/Kconfig"
1070
1071source "arch/arm/mach-ks8695/Kconfig"
1072
Russell King95b8f202010-01-14 11:43:54 +00001073source "arch/arm/mach-msm/Kconfig"
1074
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001075source "arch/arm/mach-mv78xx0/Kconfig"
1076
Shawn Guo3995eb82012-09-13 19:48:07 +08001077source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001079source "arch/arm/mach-mxs/Kconfig"
1080
Russell King95b8f202010-01-14 11:43:54 +00001081source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001082
Russell King95b8f202010-01-14 11:43:54 +00001083source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +00001084
Tony Lindgrend48af152005-07-10 19:58:17 +01001085source "arch/arm/plat-omap/Kconfig"
1086
1087source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001088
Tony Lindgren1dbae812005-11-10 14:26:51 +00001089source "arch/arm/mach-omap2/Kconfig"
1090
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001091source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001092
Rob Herring387798b2012-09-06 13:41:12 -05001093source "arch/arm/mach-picoxcell/Kconfig"
1094
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 +01001105
Rob Herring387798b2012-09-06 13:41:12 -05001106source "arch/arm/mach-socfpga/Kconfig"
1107
viresh kumarcee37e52010-04-01 12:31:05 +01001108source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001109
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001110source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111
Ben Dooksa08ab632008-10-21 14:06:39 +01001112if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001113source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001114endif
1115
Kukjin Kim49b7a492010-09-07 15:47:18 +09001116source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001117
Byungho Min5a7652f2009-06-23 21:39:42 +09001118source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001119
Kukjin Kim170f4e42010-02-24 16:40:44 +09001120source "arch/arm/mach-s5pv210/Kconfig"
1121
Kukjin Kim83014572011-11-06 13:54:56 +09001122source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001123
Russell King882d01f2010-03-02 23:40:15 +00001124source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001125
Maxime Ripard3b526342012-11-08 12:40:16 +01001126source "arch/arm/mach-sunxi/Kconfig"
1127
Barry Song156a0992012-08-23 13:41:58 +08001128source "arch/arm/mach-prima2/Kconfig"
1129
Erik Gillingc5f80062010-01-21 16:53:02 -08001130source "arch/arm/mach-tegra/Kconfig"
1131
Russell King95b8f202010-01-14 11:43:54 +00001132source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133
Russell King95b8f202010-01-14 11:43:54 +00001134source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001135
1136source "arch/arm/mach-versatile/Kconfig"
1137
Russell Kingceade892010-02-11 21:44:53 +00001138source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001139source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001140
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001141source "arch/arm/mach-virt/Kconfig"
1142
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001143source "arch/arm/mach-vt8500/Kconfig"
1144
wanzongshun7ec80dd2008-12-03 03:55:38 +01001145source "arch/arm/mach-w90x900/Kconfig"
1146
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001147source "arch/arm/mach-zynq/Kconfig"
1148
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149# Definitions to make life easier
1150config ARCH_ACORN
1151 bool
1152
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001153config PLAT_IOP
1154 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001155 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001156
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001157config PLAT_ORION
1158 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001159 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001160 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001161 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001162 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001163
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001164config PLAT_ORION_LEGACY
1165 bool
1166 select PLAT_ORION
1167
Eric Miaobd5ce432009-01-20 12:06:01 +08001168config PLAT_PXA
1169 bool
1170
Russell Kingf4b8b312010-01-14 12:48:06 +00001171config PLAT_VERSATILE
1172 bool
1173
Russell Kinge3887712010-01-14 13:30:16 +00001174config ARM_TIMER_SP804
1175 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001176 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001177 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179source arch/arm/mm/Kconfig
1180
Russell King958cab02011-12-11 10:04:00 +00001181config ARM_NR_BANKS
1182 int
1183 default 16 if ARCH_EP93XX
1184 default 8
1185
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001186config IWMMXT
1187 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001188 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Haojian Zhuang49ea7fc2012-11-15 17:06:06 +08001189 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001190 help
1191 Enable support for iWMMXt context switching at run time if
1192 running on a CPU that supports it.
1193
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194config XSCALE_PMU
1195 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001196 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197 default y
1198
eric miao52108642010-12-13 09:42:34 +01001199config MULTI_IRQ_HANDLER
1200 bool
1201 help
1202 Allow each machine to specify it's own IRQ handler at run time.
1203
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001204if !MMU
1205source "arch/arm/Kconfig-nommu"
1206endif
1207
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001208config ARM_ERRATA_326103
1209 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1210 depends on CPU_V6
1211 help
1212 Executing a SWP instruction to read-only memory does not set bit 11
1213 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1214 treat the access as a read, preventing a COW from occurring and
1215 causing the faulting task to livelock.
1216
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001217config ARM_ERRATA_411920
1218 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001219 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001220 help
1221 Invalidation of the Instruction Cache operation can
1222 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1223 It does not affect the MPCore. This option enables the ARM Ltd.
1224 recommended workaround.
1225
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001226config ARM_ERRATA_430973
1227 bool "ARM errata: Stale prediction on replaced interworking branch"
1228 depends on CPU_V7
1229 help
1230 This option enables the workaround for the 430973 Cortex-A8
1231 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1232 interworking branch is replaced with another code sequence at the
1233 same virtual address, whether due to self-modifying code or virtual
1234 to physical address re-mapping, Cortex-A8 does not recover from the
1235 stale interworking branch prediction. This results in Cortex-A8
1236 executing the new code sequence in the incorrect ARM or Thumb state.
1237 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1238 and also flushes the branch target cache at every context switch.
1239 Note that setting specific bits in the ACTLR register may not be
1240 available in non-secure mode.
1241
Catalin Marinas855c5512009-04-30 17:06:15 +01001242config ARM_ERRATA_458693
1243 bool "ARM errata: Processor deadlock when a false hazard is created"
1244 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001245 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001246 help
1247 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1248 erratum. For very specific sequences of memory operations, it is
1249 possible for a hazard condition intended for a cache line to instead
1250 be incorrectly associated with a different cache line. This false
1251 hazard might then cause a processor deadlock. The workaround enables
1252 the L1 caching of the NEON accesses and disables the PLD instruction
1253 in the ACTLR register. Note that setting specific bits in the ACTLR
1254 register may not be available in non-secure mode.
1255
Catalin Marinas0516e462009-04-30 17:06:20 +01001256config ARM_ERRATA_460075
1257 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1258 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001259 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001260 help
1261 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1262 erratum. Any asynchronous access to the L2 cache may encounter a
1263 situation in which recent store transactions to the L2 cache are lost
1264 and overwritten with stale memory contents from external memory. The
1265 workaround disables the write-allocate mode for the L2 cache via the
1266 ACTLR register. Note that setting specific bits in the ACTLR register
1267 may not be available in non-secure mode.
1268
Will Deacon9f050272010-09-14 09:51:43 +01001269config ARM_ERRATA_742230
1270 bool "ARM errata: DMB operation may be faulty"
1271 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001272 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001273 help
1274 This option enables the workaround for the 742230 Cortex-A9
1275 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1276 between two write operations may not ensure the correct visibility
1277 ordering of the two writes. This workaround sets a specific bit in
1278 the diagnostic register of the Cortex-A9 which causes the DMB
1279 instruction to behave as a DSB, ensuring the correct behaviour of
1280 the two writes.
1281
Will Deacona672e992010-09-14 09:53:02 +01001282config ARM_ERRATA_742231
1283 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1284 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001285 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001286 help
1287 This option enables the workaround for the 742231 Cortex-A9
1288 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1289 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1290 accessing some data located in the same cache line, may get corrupted
1291 data due to bad handling of the address hazard when the line gets
1292 replaced from one of the CPUs at the same time as another CPU is
1293 accessing it. This workaround sets specific bits in the diagnostic
1294 register of the Cortex-A9 which reduces the linefill issuing
1295 capabilities of the processor.
1296
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001297config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001298 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001299 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001300 help
1301 The PL310 L2 cache controller implements three types of Clean &
1302 Invalidate maintenance operations: by Physical Address
1303 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1304 They are architecturally defined to behave as the execution of a
1305 clean operation followed immediately by an invalidate operation,
1306 both performing to the same memory location. This functionality
1307 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001308 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001309
1310config ARM_ERRATA_720789
1311 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001312 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001313 help
1314 This option enables the workaround for the 720789 Cortex-A9 (prior to
1315 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1316 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1317 As a consequence of this erratum, some TLB entries which should be
1318 invalidated are not, resulting in an incoherency in the system page
1319 tables. The workaround changes the TLB flushing routines to invalidate
1320 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001321
Russell King1f0090a2011-03-16 23:35:25 +00001322config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001323 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001324 depends on CACHE_L2X0
1325 help
1326 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1327 operation (offset 0x7FC). This operation runs in background so that
1328 PL310 can handle normal accesses while it is in progress. Under very
1329 rare circumstances, due to this erratum, write data can be lost when
1330 PL310 treats a cacheable write transaction during a Clean &
1331 Invalidate by Way operation.
1332
Will Deacon475d92f2010-09-28 14:02:02 +01001333config ARM_ERRATA_743622
1334 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1335 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001336 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001337 help
1338 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001339 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001340 optimisation in the Cortex-A9 Store Buffer may lead to data
1341 corruption. This workaround sets a specific bit in the diagnostic
1342 register of the Cortex-A9 which disables the Store Buffer
1343 optimisation, preventing the defect from occurring. This has no
1344 visible impact on the overall performance or power consumption of the
1345 processor.
1346
Will Deacon9a27c272011-02-18 16:36:35 +01001347config ARM_ERRATA_751472
1348 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001349 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001350 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001351 help
1352 This option enables the workaround for the 751472 Cortex-A9 (prior
1353 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1354 completion of a following broadcasted operation if the second
1355 operation is received by a CPU before the ICIALLUIS has completed,
1356 potentially leading to corrupted entries in the cache or TLB.
1357
Will Deaconfa0ce402011-11-14 17:24:57 +01001358config PL310_ERRATA_753970
1359 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001360 depends on CACHE_PL310
1361 help
1362 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1363
1364 Under some condition the effect of cache sync operation on
1365 the store buffer still remains when the operation completes.
1366 This means that the store buffer is always asked to drain and
1367 this prevents it from merging any further writes. The workaround
1368 is to replace the normal offset of cache sync operation (0x730)
1369 by another offset targeting an unmapped PL310 register 0x740.
1370 This has the same effect as the cache sync operation: store buffer
1371 drain and waiting for all buffers empty.
1372
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001373config ARM_ERRATA_754322
1374 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1375 depends on CPU_V7
1376 help
1377 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1378 r3p*) erratum. A speculative memory access may cause a page table walk
1379 which starts prior to an ASID switch but completes afterwards. This
1380 can populate the micro-TLB with a stale entry which may be hit with
1381 the new ASID. This workaround places two dsb instructions in the mm
1382 switching code so that no page table walks can cross the ASID switch.
1383
Will Deacon5dab26af2011-03-04 12:38:54 +01001384config ARM_ERRATA_754327
1385 bool "ARM errata: no automatic Store Buffer drain"
1386 depends on CPU_V7 && SMP
1387 help
1388 This option enables the workaround for the 754327 Cortex-A9 (prior to
1389 r2p0) erratum. The Store Buffer does not have any automatic draining
1390 mechanism and therefore a livelock may occur if an external agent
1391 continuously polls a memory location waiting to observe an update.
1392 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1393 written polling loops from denying visibility of updates to memory.
1394
Catalin Marinas145e10e2011-08-15 11:04:41 +01001395config ARM_ERRATA_364296
1396 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1397 depends on CPU_V6 && !SMP
1398 help
1399 This options enables the workaround for the 364296 ARM1136
1400 r0p2 erratum (possible cache data corruption with
1401 hit-under-miss enabled). It sets the undocumented bit 31 in
1402 the auxiliary control register and the FI bit in the control
1403 register, thus disabling hit-under-miss without putting the
1404 processor into full low interrupt latency mode. ARM11MPCore
1405 is not affected.
1406
Will Deaconf630c1b2011-09-15 11:45:15 +01001407config ARM_ERRATA_764369
1408 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1409 depends on CPU_V7 && SMP
1410 help
1411 This option enables the workaround for erratum 764369
1412 affecting Cortex-A9 MPCore with two or more processors (all
1413 current revisions). Under certain timing circumstances, a data
1414 cache line maintenance operation by MVA targeting an Inner
1415 Shareable memory region may fail to proceed up to either the
1416 Point of Coherency or to the Point of Unification of the
1417 system. This workaround adds a DSB instruction before the
1418 relevant cache maintenance functions and sets a specific bit
1419 in the diagnostic control register of the SCU.
1420
Will Deacon11ed0ba2011-11-14 17:24:58 +01001421config PL310_ERRATA_769419
1422 bool "PL310 errata: no automatic Store Buffer drain"
1423 depends on CACHE_L2X0
1424 help
1425 On revisions of the PL310 prior to r3p2, the Store Buffer does
1426 not automatically drain. This can cause normal, non-cacheable
1427 writes to be retained when the memory system is idle, leading
1428 to suboptimal I/O performance for drivers using coherent DMA.
1429 This option adds a write barrier to the cpu_idle loop so that,
1430 on systems with an outer cache, the store buffer is drained
1431 explicitly.
1432
Simon Horman7253b852012-09-28 02:12:45 +01001433config ARM_ERRATA_775420
1434 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1435 depends on CPU_V7
1436 help
1437 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1438 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1439 operation aborts with MMU exception, it might cause the processor
1440 to deadlock. This workaround puts DSB before executing ISB if
1441 an abort may occur on cache maintenance.
1442
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443endmenu
1444
1445source "arch/arm/common/Kconfig"
1446
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447menu "Bus support"
1448
1449config ARM_AMBA
1450 bool
1451
1452config ISA
1453 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454 help
1455 Find out whether you have ISA slots on your motherboard. ISA is the
1456 name of a bus system, i.e. the way the CPU talks to the other stuff
1457 inside your box. Other bus systems are PCI, EISA, MicroChannel
1458 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1459 newer boards don't support it. If you have ISA, say Y, otherwise N.
1460
Russell King065909b2006-01-04 15:44:16 +00001461# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001462config ISA_DMA
1463 bool
Russell King065909b2006-01-04 15:44:16 +00001464 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465
Arnd Bergmanna5d533e2012-11-12 22:16:12 +00001466config ARCH_NO_VIRT_TO_BUS
1467 def_bool y
1468 depends on !ARCH_RPC && !ARCH_NETWINDER && !ARCH_SHARK
1469
Russell King065909b2006-01-04 15:44:16 +00001470# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001471config ISA_DMA_API
1472 bool
Al Viro5cae8412005-05-04 05:39:22 +01001473
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001475 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001476 help
1477 Find out whether you have a PCI motherboard. PCI is the name of a
1478 bus system, i.e. the way the CPU talks to the other stuff inside
1479 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1480 VESA. If you have PCI, say Y, otherwise N.
1481
Anton Vorontsov52882172010-04-19 13:20:49 +01001482config PCI_DOMAINS
1483 bool
1484 depends on PCI
1485
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001486config PCI_NANOENGINE
1487 bool "BSE nanoEngine PCI support"
1488 depends on SA1100_NANOENGINE
1489 help
1490 Enable PCI on the BSE nanoEngine board.
1491
Matthew Wilcox36e23592007-07-10 10:54:40 -06001492config PCI_SYSCALL
1493 def_bool PCI
1494
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495# Select the host bridge type
1496config PCI_HOST_VIA82C505
1497 bool
1498 depends on PCI && ARCH_SHARK
1499 default y
1500
Mike Rapoporta0113a92007-11-25 08:55:34 +01001501config PCI_HOST_ITE8152
1502 bool
1503 depends on PCI && MACH_ARMCORE
1504 default y
1505 select DMABOUNCE
1506
Linus Torvalds1da177e2005-04-16 15:20:36 -07001507source "drivers/pci/Kconfig"
1508
1509source "drivers/pcmcia/Kconfig"
1510
1511endmenu
1512
1513menu "Kernel Features"
1514
Dave Martin3b556582011-12-07 15:38:04 +00001515config HAVE_SMP
1516 bool
1517 help
1518 This option should be selected by machines which have an SMP-
1519 capable CPU.
1520
1521 The only effect of this option is to make the SMP-related
1522 options available to the user for configuration.
1523
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001525 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001526 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001527 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001528 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001529 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001530 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001531 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532 help
1533 This enables support for systems with more than one CPU. If you have
1534 a system with only one CPU, like most personal computers, say N. If
1535 you have a system with more than one CPU, say Y.
1536
1537 If you say N here, the kernel will run on single and multiprocessor
1538 machines, but will use only one CPU of a multiprocessor machine. If
1539 you say Y here, the kernel will run on many, but not all, single
1540 processor machines. On a single processor machine, the kernel will
1541 run faster if you say N here.
1542
Paul Bolle395cf962011-08-15 02:02:26 +02001543 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001545 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001546
1547 If you don't know what to do here, say N.
1548
Russell Kingf00ec482010-09-04 10:47:48 +01001549config SMP_ON_UP
1550 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001551 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001552 default y
1553 help
1554 SMP kernels contain instructions which fail on non-SMP processors.
1555 Enabling this option allows the kernel to modify itself to make
1556 these instructions safe. Disabling it allows about 1K of space
1557 savings.
1558
1559 If you don't know what to do here, say Y.
1560
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001561config ARM_CPU_TOPOLOGY
1562 bool "Support cpu topology definition"
1563 depends on SMP && CPU_V7
1564 default y
1565 help
1566 Support ARM cpu topology definition. The MPIDR register defines
1567 affinity between processors which is then used to describe the cpu
1568 topology of an ARM System.
1569
1570config SCHED_MC
1571 bool "Multi-core scheduler support"
1572 depends on ARM_CPU_TOPOLOGY
1573 help
1574 Multi-core scheduler support improves the CPU scheduler's decision
1575 making when dealing with multi-core CPU chips at a cost of slightly
1576 increased overhead in some places. If unsure say N here.
1577
1578config SCHED_SMT
1579 bool "SMT scheduler support"
1580 depends on ARM_CPU_TOPOLOGY
1581 help
1582 Improves the CPU scheduler's decision making when dealing with
1583 MultiThreading at a cost of slightly increased overhead in some
1584 places. If unsure say N here.
1585
Russell Kinga8cbcd92009-05-16 11:51:14 +01001586config HAVE_ARM_SCU
1587 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001588 help
1589 This option enables support for the ARM system coherency unit
1590
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001591config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001592 bool "Architected timer support"
1593 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001594 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001595 help
1596 This option enables support for the ARM architected timer
1597
Russell Kingf32f4ce2009-05-16 12:14:21 +01001598config HAVE_ARM_TWD
1599 bool
1600 depends on SMP
1601 help
1602 This options enables support for the ARM timer and watchdog unit
1603
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001604choice
1605 prompt "Memory split"
1606 default VMSPLIT_3G
1607 help
1608 Select the desired split between kernel and user memory.
1609
1610 If you are not absolutely sure what you are doing, leave this
1611 option alone!
1612
1613 config VMSPLIT_3G
1614 bool "3G/1G user/kernel split"
1615 config VMSPLIT_2G
1616 bool "2G/2G user/kernel split"
1617 config VMSPLIT_1G
1618 bool "1G/3G user/kernel split"
1619endchoice
1620
1621config PAGE_OFFSET
1622 hex
1623 default 0x40000000 if VMSPLIT_1G
1624 default 0x80000000 if VMSPLIT_2G
1625 default 0xC0000000
1626
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627config NR_CPUS
1628 int "Maximum number of CPUs (2-32)"
1629 range 2 32
1630 depends on SMP
1631 default "4"
1632
Russell Kinga054a812005-11-02 22:24:33 +00001633config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001634 bool "Support for hot-pluggable CPUs"
1635 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001636 help
1637 Say Y here to experiment with turning CPUs off and on. CPUs
1638 can be controlled through /sys/devices/system/cpu.
1639
Will Deacon2bdd4242012-12-12 19:20:52 +00001640config ARM_PSCI
1641 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1642 depends on CPU_V7
1643 help
1644 Say Y here if you want Linux to communicate with system firmware
1645 implementing the PSCI specification for CPU-centric power
1646 management operations described in ARM document number ARM DEN
1647 0022A ("Power State Coordination Interface System Software on
1648 ARM processors").
1649
Russell King37ee16a2005-11-08 19:08:05 +00001650config LOCAL_TIMERS
1651 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001652 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001653 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001654 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001655 help
1656 Enable support for local timers on SMP platforms, rather then the
1657 legacy IPI broadcast method. Local timers allows the system
1658 accounting to be spread across the timer interval, preventing a
1659 "thundering herd" at every timer tick.
1660
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001661config ARCH_NR_GPIO
1662 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001663 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Philippe Langlais70227a42012-02-13 10:51:22 +01001664 default 355 if ARCH_U8500
Paul Parsons9a01ec32012-02-27 01:58:45 +00001665 default 264 if MACH_H4700
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301666 default 512 if SOC_OMAP5
Maxime Riparde590b912013-01-26 15:36:51 +01001667 default 288 if ARCH_VT8500 || ARCH_SUNXI
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001668 default 0
1669 help
1670 Maximum number of GPIOs in the system.
1671
1672 If unsure, leave the default value.
1673
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001674source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675
Russell Kingf8065812006-03-02 22:41:59 +00001676config HZ
1677 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001678 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001679 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001680 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001681 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001682 default 100
1683
Russell Kingb28748f2013-02-17 14:40:33 +00001684config SCHED_HRTICK
1685 def_bool HIGH_RES_TIMERS
1686
Catalin Marinas16c79652009-07-24 12:33:02 +01001687config THUMB2_KERNEL
Russell King00b7ded2012-10-22 22:54:30 +01001688 bool "Compile the kernel in Thumb-2 mode"
1689 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Catalin Marinas16c79652009-07-24 12:33:02 +01001690 select AEABI
1691 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001692 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001693 help
1694 By enabling this option, the kernel will be compiled in
1695 Thumb-2 mode. A compiler/assembler that understand the unified
1696 ARM-Thumb syntax is needed.
1697
1698 If unsure, say N.
1699
Dave Martin6f685c52011-03-03 11:41:12 +01001700config THUMB2_AVOID_R_ARM_THM_JUMP11
1701 bool "Work around buggy Thumb-2 short branch relocations in gas"
1702 depends on THUMB2_KERNEL && MODULES
1703 default y
1704 help
1705 Various binutils versions can resolve Thumb-2 branches to
1706 locally-defined, preemptible global symbols as short-range "b.n"
1707 branch instructions.
1708
1709 This is a problem, because there's no guarantee the final
1710 destination of the symbol, or any candidate locations for a
1711 trampoline, are within range of the branch. For this reason, the
1712 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1713 relocation in modules at all, and it makes little sense to add
1714 support.
1715
1716 The symptom is that the kernel fails with an "unsupported
1717 relocation" error when loading some modules.
1718
1719 Until fixed tools are available, passing
1720 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1721 code which hits this problem, at the cost of a bit of extra runtime
1722 stack usage in some cases.
1723
1724 The problem is described in more detail at:
1725 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1726
1727 Only Thumb-2 kernels are affected.
1728
1729 Unless you are sure your tools don't have this problem, say Y.
1730
Catalin Marinas0becb082009-07-24 12:32:53 +01001731config ARM_ASM_UNIFIED
1732 bool
1733
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001734config AEABI
1735 bool "Use the ARM EABI to compile the kernel"
1736 help
1737 This option allows for the kernel to be compiled using the latest
1738 ARM ABI (aka EABI). This is only useful if you are using a user
1739 space environment that is also compiled with EABI.
1740
1741 Since there are major incompatibilities between the legacy ABI and
1742 EABI, especially with regard to structure member alignment, this
1743 option also changes the kernel syscall calling convention to
1744 disambiguate both ABIs and allow for backward compatibility support
1745 (selected with CONFIG_OABI_COMPAT).
1746
1747 To use this you need GCC version 4.0.0 or later.
1748
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001749config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001750 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001751 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001752 default y
1753 help
1754 This option preserves the old syscall interface along with the
1755 new (ARM EABI) one. It also provides a compatibility layer to
1756 intercept syscalls that have structure arguments which layout
1757 in memory differs between the legacy ABI and the new ARM EABI
1758 (only for non "thumb" binaries). This option adds a tiny
1759 overhead to all syscalls and produces a slightly larger kernel.
1760 If you know you'll be using only pure EABI user space then you
1761 can say N here. If this option is not selected and you attempt
1762 to execute a legacy ABI binary then the result will be
1763 UNPREDICTABLE (in fact it can be predicted that it won't work
1764 at all). If in doubt say Y.
1765
Mel Gormaneb335752009-05-13 17:34:48 +01001766config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001767 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001768
Russell King05944d72006-11-30 20:43:51 +00001769config ARCH_SPARSEMEM_ENABLE
1770 bool
1771
Russell King07a2f732008-10-01 21:39:58 +01001772config ARCH_SPARSEMEM_DEFAULT
1773 def_bool ARCH_SPARSEMEM_ENABLE
1774
Russell King05944d72006-11-30 20:43:51 +00001775config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001776 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001777
Will Deacon7b7bf492011-05-19 13:21:14 +01001778config HAVE_ARCH_PFN_VALID
1779 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1780
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001781config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001782 bool "High Memory Support"
1783 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001784 help
1785 The address space of ARM processors is only 4 Gigabytes large
1786 and it has to accommodate user address space, kernel address
1787 space as well as some memory mapped IO. That means that, if you
1788 have a large amount of physical memory and/or IO, not all of the
1789 memory can be "permanently mapped" by the kernel. The physical
1790 memory that is not permanently mapped is called "high memory".
1791
1792 Depending on the selected kernel/user memory split, minimum
1793 vmalloc space and actual amount of RAM, you may not need this
1794 option which should result in a slightly faster kernel.
1795
1796 If unsure, say n.
1797
Russell King65cec8e2009-08-17 20:02:06 +01001798config HIGHPTE
1799 bool "Allocate 2nd-level pagetables from highmem"
1800 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001801
Jamie Iles1b8873a2010-02-02 20:25:44 +01001802config HW_PERF_EVENTS
1803 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001804 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001805 default y
1806 help
1807 Enable hardware performance counter support for perf events. If
1808 disabled, perf events will use software events only.
1809
Dave Hansen3f22ab22005-06-23 00:07:43 -07001810source "mm/Kconfig"
1811
Magnus Dammc1b2d972010-07-05 10:00:11 +01001812config FORCE_MAX_ZONEORDER
1813 int "Maximum zone order" if ARCH_SHMOBILE
1814 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001815 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001816 default "9" if SA1111
1817 default "11"
1818 help
1819 The kernel memory allocator divides physically contiguous memory
1820 blocks into "zones", where each zone is a power of two number of
1821 pages. This option selects the largest power of two that the kernel
1822 keeps in the memory allocator. If you need to allocate very large
1823 blocks of physically contiguous memory, then you may need to
1824 increase this value.
1825
1826 This config option is actually maximum order plus one. For example,
1827 a value of 11 means that the largest free memory block is 2^10 pages.
1828
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829config ALIGNMENT_TRAP
1830 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001831 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001833 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001835 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1837 address divisible by 4. On 32-bit ARM processors, these non-aligned
1838 fetch/store instructions will be emulated in software if you say
1839 here, which has a severe performance impact. This is necessary for
1840 correct operation of some network protocols. With an IP-only
1841 configuration it is safe to say N, otherwise say Y.
1842
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001843config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001844 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1845 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001846 default y if CPU_FEROCEON
1847 help
1848 Implement faster copy_to_user and clear_user methods for CPU
1849 cores where a 8-word STM instruction give significantly higher
1850 memory write throughput than a sequence of individual 32bit stores.
1851
1852 A possible side effect is a slight increase in scheduling latency
1853 between threads sharing the same address space if they invoke
1854 such copy operations with large buffers.
1855
1856 However, if the CPU data cache is using a write-allocate mode,
1857 this option is unlikely to provide any performance gain.
1858
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001859config SECCOMP
1860 bool
1861 prompt "Enable seccomp to safely compute untrusted bytecode"
1862 ---help---
1863 This kernel feature is useful for number crunching applications
1864 that may need to compute untrusted bytecode during their
1865 execution. By using pipes or other transports made available to
1866 the process as file descriptors supporting the read/write
1867 syscalls, it's possible to isolate those applications in
1868 their own address space using seccomp. Once seccomp is
1869 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1870 and the task is only allowed to execute a few safe syscalls
1871 defined by each seccomp mode.
1872
Nicolas Pitrec743f382010-05-24 23:55:42 -04001873config CC_STACKPROTECTOR
1874 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1875 help
1876 This option turns on the -fstack-protector GCC feature. This
1877 feature puts, at the beginning of functions, a canary value on
1878 the stack just before the return address, and validates
1879 the value just before actually returning. Stack based buffer
1880 overflows (that need to overwrite this return address) now also
1881 overwrite the canary, which gets detected and the attack is then
1882 neutralized via a kernel panic.
1883 This feature requires gcc version 4.2 or above.
1884
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001885config XEN_DOM0
1886 def_bool y
1887 depends on XEN
1888
1889config XEN
1890 bool "Xen guest support on ARM (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001891 depends on ARM && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001892 depends on CPU_V7 && !CPU_V6
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001893 help
1894 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1895
Linus Torvalds1da177e2005-04-16 15:20:36 -07001896endmenu
1897
1898menu "Boot options"
1899
Grant Likely9eb8f672011-04-28 14:27:20 -06001900config USE_OF
1901 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001902 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001903 select OF
1904 select OF_EARLY_FLATTREE
1905 help
1906 Include support for flattened device tree machine descriptions.
1907
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001908config ATAGS
1909 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1910 default y
1911 help
1912 This is the traditional way of passing data to the kernel at boot
1913 time. If you are solely relying on the flattened device tree (or
1914 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1915 to remove ATAGS support from your kernel binary. If unsure,
1916 leave this to y.
1917
1918config DEPRECATED_PARAM_STRUCT
1919 bool "Provide old way to pass kernel parameters"
1920 depends on ATAGS
1921 help
1922 This was deprecated in 2001 and announced to live on for 5 years.
1923 Some old boot loaders still use this way.
1924
Linus Torvalds1da177e2005-04-16 15:20:36 -07001925# Compressed boot loader in ROM. Yes, we really want to ask about
1926# TEXT and BSS so we preserve their values in the config files.
1927config ZBOOT_ROM_TEXT
1928 hex "Compressed ROM boot loader base address"
1929 default "0"
1930 help
1931 The physical address at which the ROM-able zImage is to be
1932 placed in the target. Platforms which normally make use of
1933 ROM-able zImage formats normally set this to a suitable
1934 value in their defconfig file.
1935
1936 If ZBOOT_ROM is not enabled, this has no effect.
1937
1938config ZBOOT_ROM_BSS
1939 hex "Compressed ROM boot loader BSS address"
1940 default "0"
1941 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001942 The base address of an area of read/write memory in the target
1943 for the ROM-able zImage which must be available while the
1944 decompressor is running. It must be large enough to hold the
1945 entire decompressed kernel plus an additional 128 KiB.
1946 Platforms which normally make use of ROM-able zImage formats
1947 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001948
1949 If ZBOOT_ROM is not enabled, this has no effect.
1950
1951config ZBOOT_ROM
1952 bool "Compressed boot loader in ROM/flash"
1953 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1954 help
1955 Say Y here if you intend to execute your compressed kernel image
1956 (zImage) directly from ROM or flash. If unsure, say N.
1957
Simon Horman090ab3f2011-04-26 06:29:53 +01001958choice
1959 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001960 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001961 default ZBOOT_ROM_NONE
1962 help
1963 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001964 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001965 kernel image to an MMC or SD card and boot the kernel straight
1966 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001967 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001968 rest the kernel image to RAM.
1969
1970config ZBOOT_ROM_NONE
1971 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1972 help
1973 Do not load image from SD or MMC
1974
Simon Hormanf45b1142011-01-11 04:01:08 +01001975config ZBOOT_ROM_MMCIF
1976 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001977 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001978 Load image from MMCIF hardware block.
1979
1980config ZBOOT_ROM_SH_MOBILE_SDHI
1981 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1982 help
1983 Load image from SDHI hardware block
1984
1985endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001986
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001987config ARM_APPENDED_DTB
1988 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001989 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001990 help
1991 With this option, the boot code will look for a device tree binary
1992 (DTB) appended to zImage
1993 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1994
1995 This is meant as a backward compatibility convenience for those
1996 systems with a bootloader that can't be upgraded to accommodate
1997 the documented boot protocol using a device tree.
1998
1999 Beware that there is very little in terms of protection against
2000 this option being confused by leftover garbage in memory that might
2001 look like a DTB header after a reboot if no actual DTB is appended
2002 to zImage. Do not leave this option active in a production kernel
2003 if you don't intend to always append a DTB. Proper passing of the
2004 location into r2 of a bootloader provided DTB is always preferable
2005 to this option.
2006
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002007config ARM_ATAG_DTB_COMPAT
2008 bool "Supplement the appended DTB with traditional ATAG information"
2009 depends on ARM_APPENDED_DTB
2010 help
2011 Some old bootloaders can't be updated to a DTB capable one, yet
2012 they provide ATAGs with memory configuration, the ramdisk address,
2013 the kernel cmdline string, etc. Such information is dynamically
2014 provided by the bootloader and can't always be stored in a static
2015 DTB. To allow a device tree enabled kernel to be used with such
2016 bootloaders, this option allows zImage to extract the information
2017 from the ATAG list and store it at run time into the appended DTB.
2018
Genoud Richardd0f34a112012-06-26 16:37:59 +01002019choice
2020 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2021 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2022
2023config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2024 bool "Use bootloader kernel arguments if available"
2025 help
2026 Uses the command-line options passed by the boot loader instead of
2027 the device tree bootargs property. If the boot loader doesn't provide
2028 any, the device tree bootargs property will be used.
2029
2030config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2031 bool "Extend with bootloader kernel arguments"
2032 help
2033 The command-line arguments provided by the boot loader will be
2034 appended to the the device tree bootargs property.
2035
2036endchoice
2037
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038config CMDLINE
2039 string "Default kernel command string"
2040 default ""
2041 help
2042 On some architectures (EBSA110 and CATS), there is currently no way
2043 for the boot loader to pass arguments to the kernel. For these
2044 architectures, you should supply some command-line options at build
2045 time by entering them here. As a minimum, you should specify the
2046 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2047
Victor Boivie4394c122011-05-04 17:07:55 +01002048choice
2049 prompt "Kernel command line type" if CMDLINE != ""
2050 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002051 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002052
2053config CMDLINE_FROM_BOOTLOADER
2054 bool "Use bootloader kernel arguments if available"
2055 help
2056 Uses the command-line options passed by the boot loader. If
2057 the boot loader doesn't provide any, the default kernel command
2058 string provided in CMDLINE will be used.
2059
2060config CMDLINE_EXTEND
2061 bool "Extend bootloader kernel arguments"
2062 help
2063 The command-line arguments provided by the boot loader will be
2064 appended to the default kernel command string.
2065
Alexander Holler92d20402010-02-16 19:04:53 +01002066config CMDLINE_FORCE
2067 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002068 help
2069 Always use the default kernel command string, even if the boot
2070 loader passes other arguments to the kernel.
2071 This is useful if you cannot or don't want to change the
2072 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002073endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002074
Linus Torvalds1da177e2005-04-16 15:20:36 -07002075config XIP_KERNEL
2076 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002077 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078 help
2079 Execute-In-Place allows the kernel to run from non-volatile storage
2080 directly addressable by the CPU, such as NOR flash. This saves RAM
2081 space since the text section of the kernel is not loaded from flash
2082 to RAM. Read-write sections, such as the data section and stack,
2083 are still copied to RAM. The XIP kernel is not compressed since
2084 it has to run directly from flash, so it will take more space to
2085 store it. The flash address used to link the kernel object files,
2086 and for storing it, is configuration dependent. Therefore, if you
2087 say Y here, you must know the proper physical address where to
2088 store the kernel image depending on your own flash memory usage.
2089
2090 Also note that the make target becomes "make xipImage" rather than
2091 "make zImage" or "make Image". The final kernel binary to put in
2092 ROM memory will be arch/arm/boot/xipImage.
2093
2094 If unsure, say N.
2095
2096config XIP_PHYS_ADDR
2097 hex "XIP Kernel Physical Location"
2098 depends on XIP_KERNEL
2099 default "0x00080000"
2100 help
2101 This is the physical address in your flash memory the kernel will
2102 be linked for and stored to. This address is dependent on your
2103 own flash usage.
2104
Richard Purdiec587e4a2007-02-06 21:29:00 +01002105config KEXEC
2106 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002107 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002108 help
2109 kexec is a system call that implements the ability to shutdown your
2110 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002111 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002112 you can start any kernel with it, not just Linux.
2113
2114 It is an ongoing process to be certain the hardware in a machine
2115 is properly shutdown, so do not be surprised if this code does not
2116 initially work for you. It may help to enable device hotplugging
2117 support.
2118
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002119config ATAGS_PROC
2120 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002121 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002122 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002123 help
2124 Should the atags used to boot the kernel be exported in an "atags"
2125 file in procfs. Useful with kexec.
2126
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002127config CRASH_DUMP
2128 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002129 help
2130 Generate crash dump after being started by kexec. This should
2131 be normally only set in special crash dump kernels which are
2132 loaded in the main kernel with kexec-tools into a specially
2133 reserved region and then later executed after a crash by
2134 kdump/kexec. The crash dump kernel must be compiled to a
2135 memory address not used by the main kernel
2136
2137 For more details see Documentation/kdump/kdump.txt
2138
Eric Miaoe69edc792010-07-05 15:56:50 +02002139config AUTO_ZRELADDR
2140 bool "Auto calculation of the decompressed kernel image address"
2141 depends on !ZBOOT_ROM && !ARCH_U300
2142 help
2143 ZRELADDR is the physical address where the decompressed kernel
2144 image will be placed. If AUTO_ZRELADDR is selected, the address
2145 will be determined at run-time by masking the current IP with
2146 0xf8000000. This assumes the zImage being placed in the first 128MB
2147 from start of memory.
2148
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149endmenu
2150
Russell Kingac9d7ef2008-08-18 17:26:00 +01002151menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152
Ben Dooks89c52ed2009-07-30 23:23:24 +01002153if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154
2155source "drivers/cpufreq/Kconfig"
2156
Yong Shen64f102b2010-10-21 21:18:59 +08002157config CPU_FREQ_IMX
2158 tristate "CPUfreq driver for i.MX CPUs"
2159 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002160 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002161 help
2162 This enables the CPUfreq driver for i.MX CPUs.
2163
Linus Torvalds1da177e2005-04-16 15:20:36 -07002164config CPU_FREQ_SA1100
2165 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166
2167config CPU_FREQ_SA1110
2168 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169
2170config CPU_FREQ_INTEGRATOR
2171 tristate "CPUfreq driver for ARM Integrator CPUs"
2172 depends on ARCH_INTEGRATOR && CPU_FREQ
2173 default y
2174 help
2175 This enables the CPUfreq driver for ARM Integrator CPUs.
2176
2177 For details, take a look at <file:Documentation/cpu-freq>.
2178
2179 If in doubt, say Y.
2180
Russell King9e2697f2007-12-14 13:30:14 +00002181config CPU_FREQ_PXA
2182 bool
2183 depends on CPU_FREQ && ARCH_PXA && PXA25x
2184 default y
2185 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002186 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002187
Ben Dooks9d56c022009-07-30 23:23:25 +01002188config CPU_FREQ_S3C
2189 bool
2190 help
2191 Internal configuration node for common cpufreq on Samsung SoC
2192
2193config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002194 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002195 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002196 select CPU_FREQ_S3C
2197 help
2198 This enables the CPUfreq driver for the Samsung S3C24XX family
2199 of CPUs.
2200
2201 For details, take a look at <file:Documentation/cpu-freq>.
2202
2203 If in doubt, say N.
2204
2205config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002206 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002207 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002208 help
2209 Compile in support for changing the PLL frequency from the
2210 S3C24XX series CPUfreq driver. The PLL takes time to settle
2211 after a frequency change, so by default it is not enabled.
2212
2213 This also means that the PLL tables for the selected CPU(s) will
2214 be built which may increase the size of the kernel image.
2215
2216config CPU_FREQ_S3C24XX_DEBUG
2217 bool "Debug CPUfreq Samsung driver core"
2218 depends on CPU_FREQ_S3C24XX
2219 help
2220 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2221
2222config CPU_FREQ_S3C24XX_IODEBUG
2223 bool "Debug CPUfreq Samsung driver IO timing"
2224 depends on CPU_FREQ_S3C24XX
2225 help
2226 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2227
Ben Dookse6d197a2009-07-30 23:23:42 +01002228config CPU_FREQ_S3C24XX_DEBUGFS
2229 bool "Export debugfs for CPUFreq"
2230 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2231 help
2232 Export status information via debugfs.
2233
Linus Torvalds1da177e2005-04-16 15:20:36 -07002234endif
2235
Russell Kingac9d7ef2008-08-18 17:26:00 +01002236source "drivers/cpuidle/Kconfig"
2237
2238endmenu
2239
Linus Torvalds1da177e2005-04-16 15:20:36 -07002240menu "Floating point emulation"
2241
2242comment "At least one emulation must be selected"
2243
2244config FPE_NWFPE
2245 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002246 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002247 ---help---
2248 Say Y to include the NWFPE floating point emulator in the kernel.
2249 This is necessary to run most binaries. Linux does not currently
2250 support floating point hardware so you need to say Y here even if
2251 your machine has an FPA or floating point co-processor podule.
2252
2253 You may say N here if you are going to load the Acorn FPEmulator
2254 early in the bootup.
2255
2256config FPE_NWFPE_XP
2257 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002258 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259 help
2260 Say Y to include 80-bit support in the kernel floating-point
2261 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2262 Note that gcc does not generate 80-bit operations by default,
2263 so in most cases this option only enlarges the size of the
2264 floating point emulator without any good reason.
2265
2266 You almost surely want to say N here.
2267
2268config FPE_FASTFPE
2269 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002270 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002271 ---help---
2272 Say Y here to include the FAST floating point emulator in the kernel.
2273 This is an experimental much faster emulator which now also has full
2274 precision for the mantissa. It does not support any exceptions.
2275 It is very simple, and approximately 3-6 times faster than NWFPE.
2276
2277 It should be sufficient for most programs. It may be not suitable
2278 for scientific calculations, but you have to check this for yourself.
2279 If you do not feel you need a faster FP emulation you should better
2280 choose NWFPE.
2281
2282config VFP
2283 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002284 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285 help
2286 Say Y to include VFP support code in the kernel. This is needed
2287 if your hardware includes a VFP unit.
2288
2289 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2290 release notes and additional status information.
2291
2292 Say N if your target does not have VFP hardware.
2293
Catalin Marinas25ebee02007-09-25 15:22:24 +01002294config VFPv3
2295 bool
2296 depends on VFP
2297 default y if CPU_V7
2298
Catalin Marinasb5872db2008-01-10 19:16:17 +01002299config NEON
2300 bool "Advanced SIMD (NEON) Extension support"
2301 depends on VFPv3 && CPU_V7
2302 help
2303 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2304 Extension.
2305
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306endmenu
2307
2308menu "Userspace binary formats"
2309
2310source "fs/Kconfig.binfmt"
2311
2312config ARTHUR
2313 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002314 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002315 help
2316 Say Y here to include the kernel code necessary if you want to run
2317 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2318 experimental; if this sounds frightening, say N and sleep in peace.
2319 You can also say M here to compile this support as a module (which
2320 will be called arthur).
2321
2322endmenu
2323
2324menu "Power management options"
2325
Russell Kingeceab4a2005-11-15 11:31:41 +00002326source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327
Johannes Bergf4cb5702007-12-08 02:14:00 +01002328config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002329 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002330 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002331 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002332 def_bool y
2333
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002334config ARM_CPU_SUSPEND
2335 def_bool PM_SLEEP
2336
Linus Torvalds1da177e2005-04-16 15:20:36 -07002337endmenu
2338
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002339source "net/Kconfig"
2340
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002341source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002342
2343source "fs/Kconfig"
2344
Linus Torvalds1da177e2005-04-16 15:20:36 -07002345source "arch/arm/Kconfig.debug"
2346
2347source "security/Kconfig"
2348
2349source "crypto/Kconfig"
2350
2351source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002352
2353source "arch/arm/kvm/Kconfig"