blob: ca1b6fd94a3f81a36667e6e759e068bcb0efc06d [file] [log] [blame]
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
Russell Kingb1b3f492012-10-06 17:12:25 +0100414 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100415 help
416 Support for the Cortina Systems Gemini family SoCs
417
Barry Song156a0992012-08-23 13:41:58 +0800418config ARCH_SIRF
419 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000420 select ARCH_REQUIRE_GPIOLIB
Barry Song20ddfa92012-12-20 17:14:10 +0800421 select AUTO_ZRELADDR
Binghua Duan198678b2012-08-20 06:42:36 +0000422 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100423 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200424 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000425 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100426 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800427 select PINCTRL
428 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200429 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200430 help
Barry Song156a0992012-08-23 13:41:58 +0800431 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200432
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433config ARCH_EBSA110
434 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100435 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100437 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600438 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400439 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100440 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 help
442 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000443 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 Ethernet interface, two PCMCIA sockets, two serial ports and a
445 parallel port.
446
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000447config ARCH_EP93XX
448 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100449 select ARCH_HAS_HOLES_MEMORYMODEL
450 select ARCH_REQUIRE_GPIOLIB
451 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000452 select ARM_AMBA
453 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100454 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100455 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100456 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000457 help
458 This enables support for the Cirrus EP93xx series of CPUs.
459
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460config ARCH_FOOTBRIDGE
461 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000464 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200465 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600466 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400467 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000468 help
469 Support for systems based on the DC21285 companion chip
470 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800472config ARCH_MXS
473 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800474 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100475 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100476 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800477 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100478 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800479 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800480 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800481 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800482 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800483 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800484 help
485 Support for Freescale MXS-based family of processors
486
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100487config ARCH_NETX
488 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100489 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100490 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000491 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100492 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000493 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100494 This enables support for systems based on the Hilscher NetX Soc
495
496config ARCH_H720X
497 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100498 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000499 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100500 select ISA_DMA_API
501 help
502 This enables support for systems based on the Hynix HMS720x
503
Russell King3b938be2007-05-12 11:25:44 +0100504config ARCH_IOP13XX
505 bool "IOP13xx-based"
506 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100507 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100508 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400509 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600510 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100511 select PCI
512 select PLAT_IOP
513 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100514 help
515 Support for Intel's IOP13XX (XScale) family of processors.
516
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100517config ARCH_IOP32X
518 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100519 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100520 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000521 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500522 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600523 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100524 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100525 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000526 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100527 Support for Intel's 80219 and IOP32X (XScale) family of
528 processors.
529
530config ARCH_IOP33X
531 bool "IOP33x-based"
532 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100533 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000534 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500535 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600536 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100537 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100538 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100539 help
540 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541
Russell King3b938be2007-05-12 11:25:44 +0100542config ARCH_IXP4XX
543 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100544 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500545 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100546 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100547 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000548 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100549 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100550 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100551 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600552 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100553 help
Russell King3b938be2007-05-12 11:25:44 +0100554 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100555
Saeed Bisharaedabd382009-08-06 15:12:43 +0300556config ARCH_DOVE
557 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300558 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100559 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300560 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100561 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100562 select PINCTRL
563 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200564 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100565 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300566 help
567 Support for the Marvell Dove SoC 88AP510
568
Saeed Bishara651c74c2008-06-22 22:45:06 +0200569config ARCH_KIRKWOOD
570 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700571 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100572 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200573 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700575 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100576 select PINCTRL
577 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200578 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200579 help
580 Support for the following Marvell Kirkwood series SoCs:
581 88F6180, 88F6192 and 88F6281.
582
Russell King788c9702009-04-26 14:21:59 +0100583config ARCH_MV78XX0
584 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700585 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100586 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100587 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100588 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200589 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100590 help
591 Support for the following Marvell MV78xx0 series SoCs:
592 MV781x0, MV782x0.
593
594config ARCH_ORION5X
595 bool "Marvell Orion"
596 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700597 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100598 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100599 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100600 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200601 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100602 help
603 Support for the following Marvell Orion 5x series SoCs:
604 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
605 Orion-2 (5281), Orion-1-90 (6183).
606
607config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500608 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100609 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100610 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100611 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100612 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100613 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800614 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800615 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100616 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800617 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100618 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400619 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100620 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500621 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100622
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100623config ARCH_KS8695
624 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100625 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200626 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100627 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200628 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100629 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100630 help
631 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
632 System-on-Chip devices.
633
Russell King788c9702009-04-26 14:21:59 +0100634config ARCH_W90X900
635 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100636 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100637 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100638 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100639 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100640 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200641 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100642 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
643 At present, the w90x900 has been renamed nuc900, regarding
644 the ARM series product line, you can login the following
645 link address to know more.
646
647 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
648 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400649
Russell King93e22562012-10-12 14:20:52 +0100650config ARCH_LPC32XX
651 bool "NXP LPC32XX"
652 select ARCH_REQUIRE_GPIOLIB
653 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000654 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100655 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100656 select CPU_ARM926T
657 select GENERIC_CLOCKEVENTS
658 select HAVE_IDE
659 select HAVE_PWM
660 select USB_ARCH_HAS_OHCI
661 select USE_OF
662 help
663 Support for the NXP LPC32XX family of processors
664
wanzongshuna62e9032009-12-31 15:06:05 +0100665config ARCH_TEGRA
666 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100667 select ARCH_HAS_CPUFREQ
Stephen Warren23c8c4b2013-02-07 14:43:23 -0700668 select ARCH_REQUIRE_GPIOLIB
Erik Gillingc5f80062010-01-21 16:53:02 -0800669 select CLKDEV_LOOKUP
670 select CLKSRC_MMIO
Stephen Warren1711b1e2012-10-23 11:52:53 -0600671 select CLKSRC_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100672 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800673 select GENERIC_CLOCKEVENTS
Erik Gillingc5f80062010-01-21 16:53:02 -0800674 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000675 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000676 select MIGHT_HAVE_CACHE_L2X0
Stephen Warrenc5a4d6b2012-09-19 14:19:02 -0600677 select SPARSE_IRQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600678 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800679 help
680 This enables support for NVIDIA Tegra based systems (Tegra APX,
681 Tegra 6xx and Tegra 2 series).
682
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700684 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100685 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100686 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100687 select ARCH_MTD_XIP
688 select ARCH_REQUIRE_GPIOLIB
689 select ARM_CPU_SUSPEND if PM
690 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100691 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100692 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100693 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800694 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select HAVE_IDE
696 select MULTI_IRQ_HANDLER
697 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800698 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800699 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000700 help
eric miao2c8086a2007-09-11 19:13:17 -0700701 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702
Russell King788c9702009-04-26 14:21:59 +0100703config ARCH_MSM
704 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700705 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800706 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100707 select GENERIC_CLOCKEVENTS
708 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800709 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800710 Support for Qualcomm MSM/QSD based systems. This runs on the
711 apps processor of the MSM/QSD and depends on a shared memory
712 interface to the modem processor which runs the baseband
713 stack and controls some vital subsystems
714 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800715
Magnus Dammc793c1b2010-02-05 11:14:49 +0000716config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900717 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900718 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100719 select GENERIC_CLOCKEVENTS
720 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900721 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000722 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000723 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000724 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400725 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select NO_IOPORT
Laurent Pincharta47029c2012-12-15 23:50:56 +0100727 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select PM_GENERIC_DOMAINS if PM
729 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000730 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900731 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000732
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733config ARCH_RPC
734 bool "RiscPC"
735 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100736 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100737 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000738 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200740 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select HAVE_PATA_PLATFORM
742 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600743 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400744 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100745 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746 help
747 On the Acorn Risc-PC, Linux can support the internal IDE disk and
748 CD-ROM interface, serial and parallel port, and the floppy drive.
749
750config ARCH_SA1100
751 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100752 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700754 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select ARCH_SPARSEMEM_ENABLE
756 select CLKDEV_LOOKUP
757 select CLKSRC_MMIO
758 select CPU_FREQ
759 select CPU_SA1100
760 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200761 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100762 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500763 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400764 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100765 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000766 help
767 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900769config ARCH_S3C24XX
770 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100771 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000772 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100773 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100774 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900775 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900776 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100777 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500778 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600779 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900781 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
782 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
783 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
784 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900785
Ben Dooksa08ab632008-10-21 14:06:39 +0100786config ARCH_S3C64XX
787 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100788 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900789 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select ARCH_USES_GETTIMEOFFSET
791 select ARM_VIC
792 select CLKDEV_LOOKUP
793 select CPU_V6
794 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900795 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900796 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100797 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500798 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100799 select NO_IOPORT
800 select PLAT_SAMSUNG
801 select S3C_DEV_NAND
802 select S3C_GPIO_TRACK
803 select SAMSUNG_CLKSRC
804 select SAMSUNG_GPIOLIB_4BIT
805 select SAMSUNG_IRQ_VIC_TIMER
806 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100807 help
808 Samsung S3C64XX series based systems
809
Kukjin Kim49b7a492010-09-07 15:47:18 +0900810config ARCH_S5P64X0
811 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900812 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900813 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100814 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900815 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100816 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900817 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900819 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500820 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900821 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900822 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
823 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900824
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200825config ARCH_S5PC100
826 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900828 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900829 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100830 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900831 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900832 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100833 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500834 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900835 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200836 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900837
Kukjin Kim170f4e42010-02-24 16:40:44 +0900838config ARCH_S5PV210
839 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100840 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900841 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100842 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900843 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900844 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100845 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900846 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100847 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900848 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900849 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100850 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500851 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400852 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900853 help
854 Samsung S5PV210/S5PC110 series based systems
855
Kukjin Kim83014572011-11-06 13:54:56 +0900856config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100857 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100858 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900859 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100860 select ARCH_SPARSEMEM_ENABLE
861 select CLKDEV_LOOKUP
862 select CPU_V7
863 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900864 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900865 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900866 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100867 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500868 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400869 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900870 help
Kukjin Kim83014572011-11-06 13:54:56 +0900871 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873config ARCH_SHARK
874 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100875 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000876 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100877 select ISA
878 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400879 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100880 select PCI
881 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000882 help
883 Support for the StrongARM based Digital DNARD machine, also known
884 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885
Linus Walleijd98aac72009-04-27 10:21:46 +0100886config ARCH_U300
887 bool "ST-Ericsson U300 Series"
888 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100889 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100890 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200891 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100892 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100893 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100894 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200895 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100896 select CPU_ARM926T
897 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100898 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200899 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100900 help
901 Support for ST-Ericsson U300 series mobile platforms.
902
Russell Kingccf50e22010-03-15 19:03:06 +0000903config ARCH_U8500
904 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700905 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100906 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100907 select ARCH_REQUIRE_GPIOLIB
908 select ARM_AMBA
909 select CLKDEV_LOOKUP
910 select CPU_V7
911 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000912 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000913 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200914 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000915 help
916 Support for ST-Ericsson's Ux500 architecture
917
918config ARCH_NOMADIK
919 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100920 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000921 select ARM_AMBA
922 select ARM_VIC
Linus Walleij5f66d482013-01-06 02:25:20 +0100923 select CLKSRC_NOMADIK_MTU
Linus Walleij4a31bd22012-01-11 13:52:34 +0100924 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100925 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000926 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100927 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijf0159412013-02-01 09:52:05 +0100928 select USE_OF
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000929 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200930 select PINCTRL_STN8815
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200931 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000932 help
933 Support for the Nomadik platform by ST-Ericsson
934
Russell King93e22562012-10-12 14:20:52 +0100935config PLAT_SPEAR
936 bool "ST SPEAr"
Deepak Sikri42099322012-11-27 14:05:26 +0100937 select ARCH_HAS_CPUFREQ
Russell King93e22562012-10-12 14:20:52 +0100938 select ARCH_REQUIRE_GPIOLIB
939 select ARM_AMBA
940 select CLKDEV_LOOKUP
941 select CLKSRC_MMIO
942 select COMMON_CLK
943 select GENERIC_CLOCKEVENTS
944 select HAVE_CLK
945 help
946 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
947
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100948config ARCH_DAVINCI
949 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100950 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700951 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100952 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700953 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100954 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100955 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100956 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500957 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530958 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100959 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100960 help
961 Support for TI's DaVinci platform.
962
Tony Lindgrena0694862013-01-11 11:24:20 -0800963config ARCH_OMAP1
964 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600965 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100966 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100967 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800968 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100969 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200970 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100971 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100972 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800973 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100974 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800975 select HAVE_IDE
976 select IRQ_DOMAIN
977 select NEED_MACH_IO_H if PCCARD
978 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100979 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800980 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800981
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982endchoice
983
Rob Herring387798b2012-09-06 13:41:12 -0500984menu "Multiple platform selection"
985 depends on ARCH_MULTIPLATFORM
986
987comment "CPU Core family selection"
988
989config ARCH_MULTI_V4
990 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500991 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100992 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500993
994config ARCH_MULTI_V4T
995 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500996 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100997 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500998
999config ARCH_MULTI_V5
1000 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001001 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001002 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -05001003
1004config ARCH_MULTI_V4_V5
1005 bool
1006
1007config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -08001008 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -05001009 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001010 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001011
1012config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -08001013 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001014 default y
1015 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001016 select ARCH_VEXPRESS
1017 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001018
1019config ARCH_MULTI_V6_V7
1020 bool
1021
1022config ARCH_MULTI_CPU_AUTO
1023 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1024 select ARCH_MULTI_V5
1025
1026endmenu
1027
Russell Kingccf50e22010-03-15 19:03:06 +00001028#
1029# This is sorted alphabetically by mach-* pathname. However, plat-*
1030# Kconfigs may be included either alphabetically (according to the
1031# plat- suffix) or along side the corresponding mach-* source.
1032#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001033source "arch/arm/mach-mvebu/Kconfig"
1034
Russell King95b8f202010-01-14 11:43:54 +00001035source "arch/arm/mach-at91/Kconfig"
1036
Christian Daudt8ac49e02012-11-19 09:46:10 -08001037source "arch/arm/mach-bcm/Kconfig"
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039source "arch/arm/mach-clps711x/Kconfig"
1040
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001041source "arch/arm/mach-cns3xxx/Kconfig"
1042
Russell King95b8f202010-01-14 11:43:54 +00001043source "arch/arm/mach-davinci/Kconfig"
1044
1045source "arch/arm/mach-dove/Kconfig"
1046
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001047source "arch/arm/mach-ep93xx/Kconfig"
1048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049source "arch/arm/mach-footbridge/Kconfig"
1050
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001051source "arch/arm/mach-gemini/Kconfig"
1052
Russell King95b8f202010-01-14 11:43:54 +00001053source "arch/arm/mach-h720x/Kconfig"
1054
Rob Herring387798b2012-09-06 13:41:12 -05001055source "arch/arm/mach-highbank/Kconfig"
1056
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057source "arch/arm/mach-integrator/Kconfig"
1058
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001059source "arch/arm/mach-iop32x/Kconfig"
1060
1061source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062
Dan Williams285f5fa2006-12-07 02:59:39 +01001063source "arch/arm/mach-iop13xx/Kconfig"
1064
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065source "arch/arm/mach-ixp4xx/Kconfig"
1066
Russell King95b8f202010-01-14 11:43:54 +00001067source "arch/arm/mach-kirkwood/Kconfig"
1068
1069source "arch/arm/mach-ks8695/Kconfig"
1070
Russell King95b8f202010-01-14 11:43:54 +00001071source "arch/arm/mach-msm/Kconfig"
1072
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001073source "arch/arm/mach-mv78xx0/Kconfig"
1074
Shawn Guo3995eb82012-09-13 19:48:07 +08001075source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001077source "arch/arm/mach-mxs/Kconfig"
1078
Russell King95b8f202010-01-14 11:43:54 +00001079source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001080
Russell King95b8f202010-01-14 11:43:54 +00001081source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +00001082
Tony Lindgrend48af152005-07-10 19:58:17 +01001083source "arch/arm/plat-omap/Kconfig"
1084
1085source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086
Tony Lindgren1dbae812005-11-10 14:26:51 +00001087source "arch/arm/mach-omap2/Kconfig"
1088
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001089source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001090
Rob Herring387798b2012-09-06 13:41:12 -05001091source "arch/arm/mach-picoxcell/Kconfig"
1092
Russell King95b8f202010-01-14 11:43:54 +00001093source "arch/arm/mach-pxa/Kconfig"
1094source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095
Russell King95b8f202010-01-14 11:43:54 +00001096source "arch/arm/mach-mmp/Kconfig"
1097
1098source "arch/arm/mach-realview/Kconfig"
1099
1100source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001101
Ben Dookscf383672009-11-10 00:14:58 +00001102source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001103
Rob Herring387798b2012-09-06 13:41:12 -05001104source "arch/arm/mach-socfpga/Kconfig"
1105
viresh kumarcee37e52010-04-01 12:31:05 +01001106source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001107
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001108source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001109
Ben Dooksa08ab632008-10-21 14:06:39 +01001110if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001111source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001112endif
1113
Kukjin Kim49b7a492010-09-07 15:47:18 +09001114source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001115
Byungho Min5a7652f2009-06-23 21:39:42 +09001116source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001117
Kukjin Kim170f4e42010-02-24 16:40:44 +09001118source "arch/arm/mach-s5pv210/Kconfig"
1119
Kukjin Kim83014572011-11-06 13:54:56 +09001120source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001121
Russell King882d01f2010-03-02 23:40:15 +00001122source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001123
Maxime Ripard3b526342012-11-08 12:40:16 +01001124source "arch/arm/mach-sunxi/Kconfig"
1125
Barry Song156a0992012-08-23 13:41:58 +08001126source "arch/arm/mach-prima2/Kconfig"
1127
Erik Gillingc5f80062010-01-21 16:53:02 -08001128source "arch/arm/mach-tegra/Kconfig"
1129
Russell King95b8f202010-01-14 11:43:54 +00001130source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001131
Russell King95b8f202010-01-14 11:43:54 +00001132source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001133
1134source "arch/arm/mach-versatile/Kconfig"
1135
Russell Kingceade892010-02-11 21:44:53 +00001136source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001137source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001138
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001139source "arch/arm/mach-virt/Kconfig"
1140
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001141source "arch/arm/mach-vt8500/Kconfig"
1142
wanzongshun7ec80dd2008-12-03 03:55:38 +01001143source "arch/arm/mach-w90x900/Kconfig"
1144
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001145source "arch/arm/mach-zynq/Kconfig"
1146
Linus Torvalds1da177e2005-04-16 15:20:36 -07001147# Definitions to make life easier
1148config ARCH_ACORN
1149 bool
1150
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001151config PLAT_IOP
1152 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001153 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001154
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001155config PLAT_ORION
1156 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001157 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001158 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001159 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001160 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001161
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001162config PLAT_ORION_LEGACY
1163 bool
1164 select PLAT_ORION
1165
Eric Miaobd5ce432009-01-20 12:06:01 +08001166config PLAT_PXA
1167 bool
1168
Russell Kingf4b8b312010-01-14 12:48:06 +00001169config PLAT_VERSATILE
1170 bool
1171
Russell Kinge3887712010-01-14 13:30:16 +00001172config ARM_TIMER_SP804
1173 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001174 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001175 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001176
Linus Torvalds1da177e2005-04-16 15:20:36 -07001177source arch/arm/mm/Kconfig
1178
Russell King958cab02011-12-11 10:04:00 +00001179config ARM_NR_BANKS
1180 int
1181 default 16 if ARCH_EP93XX
1182 default 8
1183
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001184config IWMMXT
1185 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001186 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Haojian Zhuang49ea7fc2012-11-15 17:06:06 +08001187 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001188 help
1189 Enable support for iWMMXt context switching at run time if
1190 running on a CPU that supports it.
1191
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192config XSCALE_PMU
1193 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001194 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 default y
1196
eric miao52108642010-12-13 09:42:34 +01001197config MULTI_IRQ_HANDLER
1198 bool
1199 help
1200 Allow each machine to specify it's own IRQ handler at run time.
1201
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001202if !MMU
1203source "arch/arm/Kconfig-nommu"
1204endif
1205
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001206config ARM_ERRATA_326103
1207 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1208 depends on CPU_V6
1209 help
1210 Executing a SWP instruction to read-only memory does not set bit 11
1211 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1212 treat the access as a read, preventing a COW from occurring and
1213 causing the faulting task to livelock.
1214
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001215config ARM_ERRATA_411920
1216 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001217 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001218 help
1219 Invalidation of the Instruction Cache operation can
1220 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1221 It does not affect the MPCore. This option enables the ARM Ltd.
1222 recommended workaround.
1223
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001224config ARM_ERRATA_430973
1225 bool "ARM errata: Stale prediction on replaced interworking branch"
1226 depends on CPU_V7
1227 help
1228 This option enables the workaround for the 430973 Cortex-A8
1229 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1230 interworking branch is replaced with another code sequence at the
1231 same virtual address, whether due to self-modifying code or virtual
1232 to physical address re-mapping, Cortex-A8 does not recover from the
1233 stale interworking branch prediction. This results in Cortex-A8
1234 executing the new code sequence in the incorrect ARM or Thumb state.
1235 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1236 and also flushes the branch target cache at every context switch.
1237 Note that setting specific bits in the ACTLR register may not be
1238 available in non-secure mode.
1239
Catalin Marinas855c5512009-04-30 17:06:15 +01001240config ARM_ERRATA_458693
1241 bool "ARM errata: Processor deadlock when a false hazard is created"
1242 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001243 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001244 help
1245 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1246 erratum. For very specific sequences of memory operations, it is
1247 possible for a hazard condition intended for a cache line to instead
1248 be incorrectly associated with a different cache line. This false
1249 hazard might then cause a processor deadlock. The workaround enables
1250 the L1 caching of the NEON accesses and disables the PLD instruction
1251 in the ACTLR register. Note that setting specific bits in the ACTLR
1252 register may not be available in non-secure mode.
1253
Catalin Marinas0516e462009-04-30 17:06:20 +01001254config ARM_ERRATA_460075
1255 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1256 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001257 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001258 help
1259 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1260 erratum. Any asynchronous access to the L2 cache may encounter a
1261 situation in which recent store transactions to the L2 cache are lost
1262 and overwritten with stale memory contents from external memory. The
1263 workaround disables the write-allocate mode for the L2 cache via the
1264 ACTLR register. Note that setting specific bits in the ACTLR register
1265 may not be available in non-secure mode.
1266
Will Deacon9f050272010-09-14 09:51:43 +01001267config ARM_ERRATA_742230
1268 bool "ARM errata: DMB operation may be faulty"
1269 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001270 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001271 help
1272 This option enables the workaround for the 742230 Cortex-A9
1273 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1274 between two write operations may not ensure the correct visibility
1275 ordering of the two writes. This workaround sets a specific bit in
1276 the diagnostic register of the Cortex-A9 which causes the DMB
1277 instruction to behave as a DSB, ensuring the correct behaviour of
1278 the two writes.
1279
Will Deacona672e992010-09-14 09:53:02 +01001280config ARM_ERRATA_742231
1281 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1282 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001283 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001284 help
1285 This option enables the workaround for the 742231 Cortex-A9
1286 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1287 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1288 accessing some data located in the same cache line, may get corrupted
1289 data due to bad handling of the address hazard when the line gets
1290 replaced from one of the CPUs at the same time as another CPU is
1291 accessing it. This workaround sets specific bits in the diagnostic
1292 register of the Cortex-A9 which reduces the linefill issuing
1293 capabilities of the processor.
1294
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001295config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001296 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001297 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001298 help
1299 The PL310 L2 cache controller implements three types of Clean &
1300 Invalidate maintenance operations: by Physical Address
1301 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1302 They are architecturally defined to behave as the execution of a
1303 clean operation followed immediately by an invalidate operation,
1304 both performing to the same memory location. This functionality
1305 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001306 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001307
1308config ARM_ERRATA_720789
1309 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001310 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001311 help
1312 This option enables the workaround for the 720789 Cortex-A9 (prior to
1313 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1314 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1315 As a consequence of this erratum, some TLB entries which should be
1316 invalidated are not, resulting in an incoherency in the system page
1317 tables. The workaround changes the TLB flushing routines to invalidate
1318 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001319
Russell King1f0090a2011-03-16 23:35:25 +00001320config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001321 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001322 depends on CACHE_L2X0
1323 help
1324 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1325 operation (offset 0x7FC). This operation runs in background so that
1326 PL310 can handle normal accesses while it is in progress. Under very
1327 rare circumstances, due to this erratum, write data can be lost when
1328 PL310 treats a cacheable write transaction during a Clean &
1329 Invalidate by Way operation.
1330
Will Deacon475d92f2010-09-28 14:02:02 +01001331config ARM_ERRATA_743622
1332 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1333 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001334 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001335 help
1336 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001337 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001338 optimisation in the Cortex-A9 Store Buffer may lead to data
1339 corruption. This workaround sets a specific bit in the diagnostic
1340 register of the Cortex-A9 which disables the Store Buffer
1341 optimisation, preventing the defect from occurring. This has no
1342 visible impact on the overall performance or power consumption of the
1343 processor.
1344
Will Deacon9a27c272011-02-18 16:36:35 +01001345config ARM_ERRATA_751472
1346 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001347 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001348 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001349 help
1350 This option enables the workaround for the 751472 Cortex-A9 (prior
1351 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1352 completion of a following broadcasted operation if the second
1353 operation is received by a CPU before the ICIALLUIS has completed,
1354 potentially leading to corrupted entries in the cache or TLB.
1355
Will Deaconfa0ce402011-11-14 17:24:57 +01001356config PL310_ERRATA_753970
1357 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001358 depends on CACHE_PL310
1359 help
1360 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1361
1362 Under some condition the effect of cache sync operation on
1363 the store buffer still remains when the operation completes.
1364 This means that the store buffer is always asked to drain and
1365 this prevents it from merging any further writes. The workaround
1366 is to replace the normal offset of cache sync operation (0x730)
1367 by another offset targeting an unmapped PL310 register 0x740.
1368 This has the same effect as the cache sync operation: store buffer
1369 drain and waiting for all buffers empty.
1370
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001371config ARM_ERRATA_754322
1372 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1373 depends on CPU_V7
1374 help
1375 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1376 r3p*) erratum. A speculative memory access may cause a page table walk
1377 which starts prior to an ASID switch but completes afterwards. This
1378 can populate the micro-TLB with a stale entry which may be hit with
1379 the new ASID. This workaround places two dsb instructions in the mm
1380 switching code so that no page table walks can cross the ASID switch.
1381
Will Deacon5dab26a2011-03-04 12:38:54 +01001382config ARM_ERRATA_754327
1383 bool "ARM errata: no automatic Store Buffer drain"
1384 depends on CPU_V7 && SMP
1385 help
1386 This option enables the workaround for the 754327 Cortex-A9 (prior to
1387 r2p0) erratum. The Store Buffer does not have any automatic draining
1388 mechanism and therefore a livelock may occur if an external agent
1389 continuously polls a memory location waiting to observe an update.
1390 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1391 written polling loops from denying visibility of updates to memory.
1392
Catalin Marinas145e10e2011-08-15 11:04:41 +01001393config ARM_ERRATA_364296
1394 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1395 depends on CPU_V6 && !SMP
1396 help
1397 This options enables the workaround for the 364296 ARM1136
1398 r0p2 erratum (possible cache data corruption with
1399 hit-under-miss enabled). It sets the undocumented bit 31 in
1400 the auxiliary control register and the FI bit in the control
1401 register, thus disabling hit-under-miss without putting the
1402 processor into full low interrupt latency mode. ARM11MPCore
1403 is not affected.
1404
Will Deaconf630c1b2011-09-15 11:45:15 +01001405config ARM_ERRATA_764369
1406 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1407 depends on CPU_V7 && SMP
1408 help
1409 This option enables the workaround for erratum 764369
1410 affecting Cortex-A9 MPCore with two or more processors (all
1411 current revisions). Under certain timing circumstances, a data
1412 cache line maintenance operation by MVA targeting an Inner
1413 Shareable memory region may fail to proceed up to either the
1414 Point of Coherency or to the Point of Unification of the
1415 system. This workaround adds a DSB instruction before the
1416 relevant cache maintenance functions and sets a specific bit
1417 in the diagnostic control register of the SCU.
1418
Will Deacon11ed0ba2011-11-14 17:24:58 +01001419config PL310_ERRATA_769419
1420 bool "PL310 errata: no automatic Store Buffer drain"
1421 depends on CACHE_L2X0
1422 help
1423 On revisions of the PL310 prior to r3p2, the Store Buffer does
1424 not automatically drain. This can cause normal, non-cacheable
1425 writes to be retained when the memory system is idle, leading
1426 to suboptimal I/O performance for drivers using coherent DMA.
1427 This option adds a write barrier to the cpu_idle loop so that,
1428 on systems with an outer cache, the store buffer is drained
1429 explicitly.
1430
Simon Horman7253b852012-09-28 02:12:45 +01001431config ARM_ERRATA_775420
1432 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1433 depends on CPU_V7
1434 help
1435 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1436 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1437 operation aborts with MMU exception, it might cause the processor
1438 to deadlock. This workaround puts DSB before executing ISB if
1439 an abort may occur on cache maintenance.
1440
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441endmenu
1442
1443source "arch/arm/common/Kconfig"
1444
Linus Torvalds1da177e2005-04-16 15:20:36 -07001445menu "Bus support"
1446
1447config ARM_AMBA
1448 bool
1449
1450config ISA
1451 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452 help
1453 Find out whether you have ISA slots on your motherboard. ISA is the
1454 name of a bus system, i.e. the way the CPU talks to the other stuff
1455 inside your box. Other bus systems are PCI, EISA, MicroChannel
1456 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1457 newer boards don't support it. If you have ISA, say Y, otherwise N.
1458
Russell King065909b2006-01-04 15:44:16 +00001459# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460config ISA_DMA
1461 bool
Russell King065909b2006-01-04 15:44:16 +00001462 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463
Arnd Bergmanna5d533e2012-11-12 22:16:12 +00001464config ARCH_NO_VIRT_TO_BUS
1465 def_bool y
1466 depends on !ARCH_RPC && !ARCH_NETWINDER && !ARCH_SHARK
1467
Russell King065909b2006-01-04 15:44:16 +00001468# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001469config ISA_DMA_API
1470 bool
Al Viro5cae8412005-05-04 05:39:22 +01001471
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001473 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474 help
1475 Find out whether you have a PCI motherboard. PCI is the name of a
1476 bus system, i.e. the way the CPU talks to the other stuff inside
1477 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1478 VESA. If you have PCI, say Y, otherwise N.
1479
Anton Vorontsov52882172010-04-19 13:20:49 +01001480config PCI_DOMAINS
1481 bool
1482 depends on PCI
1483
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001484config PCI_NANOENGINE
1485 bool "BSE nanoEngine PCI support"
1486 depends on SA1100_NANOENGINE
1487 help
1488 Enable PCI on the BSE nanoEngine board.
1489
Matthew Wilcox36e23592007-07-10 10:54:40 -06001490config PCI_SYSCALL
1491 def_bool PCI
1492
Linus Torvalds1da177e2005-04-16 15:20:36 -07001493# Select the host bridge type
1494config PCI_HOST_VIA82C505
1495 bool
1496 depends on PCI && ARCH_SHARK
1497 default y
1498
Mike Rapoporta0113a92007-11-25 08:55:34 +01001499config PCI_HOST_ITE8152
1500 bool
1501 depends on PCI && MACH_ARMCORE
1502 default y
1503 select DMABOUNCE
1504
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505source "drivers/pci/Kconfig"
1506
1507source "drivers/pcmcia/Kconfig"
1508
1509endmenu
1510
1511menu "Kernel Features"
1512
Dave Martin3b556582011-12-07 15:38:04 +00001513config HAVE_SMP
1514 bool
1515 help
1516 This option should be selected by machines which have an SMP-
1517 capable CPU.
1518
1519 The only effect of this option is to make the SMP-related
1520 options available to the user for configuration.
1521
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001523 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001524 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001525 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001526 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001527 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001528 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001529 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001530 help
1531 This enables support for systems with more than one CPU. If you have
1532 a system with only one CPU, like most personal computers, say N. If
1533 you have a system with more than one CPU, say Y.
1534
1535 If you say N here, the kernel will run on single and multiprocessor
1536 machines, but will use only one CPU of a multiprocessor machine. If
1537 you say Y here, the kernel will run on many, but not all, single
1538 processor machines. On a single processor machine, the kernel will
1539 run faster if you say N here.
1540
Paul Bolle395cf962011-08-15 02:02:26 +02001541 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001542 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001543 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544
1545 If you don't know what to do here, say N.
1546
Russell Kingf00ec482010-09-04 10:47:48 +01001547config SMP_ON_UP
1548 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001549 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001550 default y
1551 help
1552 SMP kernels contain instructions which fail on non-SMP processors.
1553 Enabling this option allows the kernel to modify itself to make
1554 these instructions safe. Disabling it allows about 1K of space
1555 savings.
1556
1557 If you don't know what to do here, say Y.
1558
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001559config ARM_CPU_TOPOLOGY
1560 bool "Support cpu topology definition"
1561 depends on SMP && CPU_V7
1562 default y
1563 help
1564 Support ARM cpu topology definition. The MPIDR register defines
1565 affinity between processors which is then used to describe the cpu
1566 topology of an ARM System.
1567
1568config SCHED_MC
1569 bool "Multi-core scheduler support"
1570 depends on ARM_CPU_TOPOLOGY
1571 help
1572 Multi-core scheduler support improves the CPU scheduler's decision
1573 making when dealing with multi-core CPU chips at a cost of slightly
1574 increased overhead in some places. If unsure say N here.
1575
1576config SCHED_SMT
1577 bool "SMT scheduler support"
1578 depends on ARM_CPU_TOPOLOGY
1579 help
1580 Improves the CPU scheduler's decision making when dealing with
1581 MultiThreading at a cost of slightly increased overhead in some
1582 places. If unsure say N here.
1583
Russell Kinga8cbcd92009-05-16 11:51:14 +01001584config HAVE_ARM_SCU
1585 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001586 help
1587 This option enables support for the ARM system coherency unit
1588
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001589config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001590 bool "Architected timer support"
1591 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001592 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001593 help
1594 This option enables support for the ARM architected timer
1595
Russell Kingf32f4ce2009-05-16 12:14:21 +01001596config HAVE_ARM_TWD
1597 bool
1598 depends on SMP
1599 help
1600 This options enables support for the ARM timer and watchdog unit
1601
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001602choice
1603 prompt "Memory split"
1604 default VMSPLIT_3G
1605 help
1606 Select the desired split between kernel and user memory.
1607
1608 If you are not absolutely sure what you are doing, leave this
1609 option alone!
1610
1611 config VMSPLIT_3G
1612 bool "3G/1G user/kernel split"
1613 config VMSPLIT_2G
1614 bool "2G/2G user/kernel split"
1615 config VMSPLIT_1G
1616 bool "1G/3G user/kernel split"
1617endchoice
1618
1619config PAGE_OFFSET
1620 hex
1621 default 0x40000000 if VMSPLIT_1G
1622 default 0x80000000 if VMSPLIT_2G
1623 default 0xC0000000
1624
Linus Torvalds1da177e2005-04-16 15:20:36 -07001625config NR_CPUS
1626 int "Maximum number of CPUs (2-32)"
1627 range 2 32
1628 depends on SMP
1629 default "4"
1630
Russell Kinga054a812005-11-02 22:24:33 +00001631config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001632 bool "Support for hot-pluggable CPUs"
1633 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001634 help
1635 Say Y here to experiment with turning CPUs off and on. CPUs
1636 can be controlled through /sys/devices/system/cpu.
1637
Will Deacon2bdd4242012-12-12 19:20:52 +00001638config ARM_PSCI
1639 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1640 depends on CPU_V7
1641 help
1642 Say Y here if you want Linux to communicate with system firmware
1643 implementing the PSCI specification for CPU-centric power
1644 management operations described in ARM document number ARM DEN
1645 0022A ("Power State Coordination Interface System Software on
1646 ARM processors").
1647
Russell King37ee16a2005-11-08 19:08:05 +00001648config LOCAL_TIMERS
1649 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001650 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001651 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001652 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001653 help
1654 Enable support for local timers on SMP platforms, rather then the
1655 legacy IPI broadcast method. Local timers allows the system
1656 accounting to be spread across the timer interval, preventing a
1657 "thundering herd" at every timer tick.
1658
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001659# The GPIO number here must be sorted by descending number. In case of
1660# a multiplatform kernel, we just want the highest value required by the
1661# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001662config ARCH_NR_GPIO
1663 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001664 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301665 default 512 if SOC_OMAP5
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001666 default 355 if ARCH_U8500
Maxime Riparde590b912013-01-26 15:36:51 +01001667 default 288 if ARCH_VT8500 || ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001668 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001669 default 0
1670 help
1671 Maximum number of GPIOs in the system.
1672
1673 If unsure, leave the default value.
1674
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001675source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676
Russell Kingf8065812006-03-02 22:41:59 +00001677config HZ
1678 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001679 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001680 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001681 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001682 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001683 default 100
1684
Russell Kingb28748f2013-02-17 14:40:33 +00001685config SCHED_HRTICK
1686 def_bool HIGH_RES_TIMERS
1687
Catalin Marinas16c79652009-07-24 12:33:02 +01001688config THUMB2_KERNEL
Russell King00b7ded2012-10-22 22:54:30 +01001689 bool "Compile the kernel in Thumb-2 mode"
1690 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Catalin Marinas16c79652009-07-24 12:33:02 +01001691 select AEABI
1692 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001693 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001694 help
1695 By enabling this option, the kernel will be compiled in
1696 Thumb-2 mode. A compiler/assembler that understand the unified
1697 ARM-Thumb syntax is needed.
1698
1699 If unsure, say N.
1700
Dave Martin6f685c52011-03-03 11:41:12 +01001701config THUMB2_AVOID_R_ARM_THM_JUMP11
1702 bool "Work around buggy Thumb-2 short branch relocations in gas"
1703 depends on THUMB2_KERNEL && MODULES
1704 default y
1705 help
1706 Various binutils versions can resolve Thumb-2 branches to
1707 locally-defined, preemptible global symbols as short-range "b.n"
1708 branch instructions.
1709
1710 This is a problem, because there's no guarantee the final
1711 destination of the symbol, or any candidate locations for a
1712 trampoline, are within range of the branch. For this reason, the
1713 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1714 relocation in modules at all, and it makes little sense to add
1715 support.
1716
1717 The symptom is that the kernel fails with an "unsupported
1718 relocation" error when loading some modules.
1719
1720 Until fixed tools are available, passing
1721 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1722 code which hits this problem, at the cost of a bit of extra runtime
1723 stack usage in some cases.
1724
1725 The problem is described in more detail at:
1726 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1727
1728 Only Thumb-2 kernels are affected.
1729
1730 Unless you are sure your tools don't have this problem, say Y.
1731
Catalin Marinas0becb082009-07-24 12:32:53 +01001732config ARM_ASM_UNIFIED
1733 bool
1734
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001735config AEABI
1736 bool "Use the ARM EABI to compile the kernel"
1737 help
1738 This option allows for the kernel to be compiled using the latest
1739 ARM ABI (aka EABI). This is only useful if you are using a user
1740 space environment that is also compiled with EABI.
1741
1742 Since there are major incompatibilities between the legacy ABI and
1743 EABI, especially with regard to structure member alignment, this
1744 option also changes the kernel syscall calling convention to
1745 disambiguate both ABIs and allow for backward compatibility support
1746 (selected with CONFIG_OABI_COMPAT).
1747
1748 To use this you need GCC version 4.0.0 or later.
1749
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001750config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001751 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001752 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001753 default y
1754 help
1755 This option preserves the old syscall interface along with the
1756 new (ARM EABI) one. It also provides a compatibility layer to
1757 intercept syscalls that have structure arguments which layout
1758 in memory differs between the legacy ABI and the new ARM EABI
1759 (only for non "thumb" binaries). This option adds a tiny
1760 overhead to all syscalls and produces a slightly larger kernel.
1761 If you know you'll be using only pure EABI user space then you
1762 can say N here. If this option is not selected and you attempt
1763 to execute a legacy ABI binary then the result will be
1764 UNPREDICTABLE (in fact it can be predicted that it won't work
1765 at all). If in doubt say Y.
1766
Mel Gormaneb335752009-05-13 17:34:48 +01001767config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001768 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001769
Russell King05944d72006-11-30 20:43:51 +00001770config ARCH_SPARSEMEM_ENABLE
1771 bool
1772
Russell King07a2f732008-10-01 21:39:58 +01001773config ARCH_SPARSEMEM_DEFAULT
1774 def_bool ARCH_SPARSEMEM_ENABLE
1775
Russell King05944d72006-11-30 20:43:51 +00001776config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001777 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001778
Will Deacon7b7bf492011-05-19 13:21:14 +01001779config HAVE_ARCH_PFN_VALID
1780 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1781
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001782config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001783 bool "High Memory Support"
1784 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001785 help
1786 The address space of ARM processors is only 4 Gigabytes large
1787 and it has to accommodate user address space, kernel address
1788 space as well as some memory mapped IO. That means that, if you
1789 have a large amount of physical memory and/or IO, not all of the
1790 memory can be "permanently mapped" by the kernel. The physical
1791 memory that is not permanently mapped is called "high memory".
1792
1793 Depending on the selected kernel/user memory split, minimum
1794 vmalloc space and actual amount of RAM, you may not need this
1795 option which should result in a slightly faster kernel.
1796
1797 If unsure, say n.
1798
Russell King65cec8e2009-08-17 20:02:06 +01001799config HIGHPTE
1800 bool "Allocate 2nd-level pagetables from highmem"
1801 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001802
Jamie Iles1b8873a2010-02-02 20:25:44 +01001803config HW_PERF_EVENTS
1804 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001805 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001806 default y
1807 help
1808 Enable hardware performance counter support for perf events. If
1809 disabled, perf events will use software events only.
1810
Dave Hansen3f22ab22005-06-23 00:07:43 -07001811source "mm/Kconfig"
1812
Magnus Dammc1b2d972010-07-05 10:00:11 +01001813config FORCE_MAX_ZONEORDER
1814 int "Maximum zone order" if ARCH_SHMOBILE
1815 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001816 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001817 default "9" if SA1111
1818 default "11"
1819 help
1820 The kernel memory allocator divides physically contiguous memory
1821 blocks into "zones", where each zone is a power of two number of
1822 pages. This option selects the largest power of two that the kernel
1823 keeps in the memory allocator. If you need to allocate very large
1824 blocks of physically contiguous memory, then you may need to
1825 increase this value.
1826
1827 This config option is actually maximum order plus one. For example,
1828 a value of 11 means that the largest free memory block is 2^10 pages.
1829
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830config ALIGNMENT_TRAP
1831 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001832 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001834 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001836 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001837 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1838 address divisible by 4. On 32-bit ARM processors, these non-aligned
1839 fetch/store instructions will be emulated in software if you say
1840 here, which has a severe performance impact. This is necessary for
1841 correct operation of some network protocols. With an IP-only
1842 configuration it is safe to say N, otherwise say Y.
1843
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001844config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001845 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1846 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001847 default y if CPU_FEROCEON
1848 help
1849 Implement faster copy_to_user and clear_user methods for CPU
1850 cores where a 8-word STM instruction give significantly higher
1851 memory write throughput than a sequence of individual 32bit stores.
1852
1853 A possible side effect is a slight increase in scheduling latency
1854 between threads sharing the same address space if they invoke
1855 such copy operations with large buffers.
1856
1857 However, if the CPU data cache is using a write-allocate mode,
1858 this option is unlikely to provide any performance gain.
1859
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001860config SECCOMP
1861 bool
1862 prompt "Enable seccomp to safely compute untrusted bytecode"
1863 ---help---
1864 This kernel feature is useful for number crunching applications
1865 that may need to compute untrusted bytecode during their
1866 execution. By using pipes or other transports made available to
1867 the process as file descriptors supporting the read/write
1868 syscalls, it's possible to isolate those applications in
1869 their own address space using seccomp. Once seccomp is
1870 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1871 and the task is only allowed to execute a few safe syscalls
1872 defined by each seccomp mode.
1873
Nicolas Pitrec743f382010-05-24 23:55:42 -04001874config CC_STACKPROTECTOR
1875 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1876 help
1877 This option turns on the -fstack-protector GCC feature. This
1878 feature puts, at the beginning of functions, a canary value on
1879 the stack just before the return address, and validates
1880 the value just before actually returning. Stack based buffer
1881 overflows (that need to overwrite this return address) now also
1882 overwrite the canary, which gets detected and the attack is then
1883 neutralized via a kernel panic.
1884 This feature requires gcc version 4.2 or above.
1885
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001886config XEN_DOM0
1887 def_bool y
1888 depends on XEN
1889
1890config XEN
1891 bool "Xen guest support on ARM (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001892 depends on ARM && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001893 depends on CPU_V7 && !CPU_V6
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001894 help
1895 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1896
Linus Torvalds1da177e2005-04-16 15:20:36 -07001897endmenu
1898
1899menu "Boot options"
1900
Grant Likely9eb8f672011-04-28 14:27:20 -06001901config USE_OF
1902 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001903 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001904 select OF
1905 select OF_EARLY_FLATTREE
1906 help
1907 Include support for flattened device tree machine descriptions.
1908
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001909config ATAGS
1910 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1911 default y
1912 help
1913 This is the traditional way of passing data to the kernel at boot
1914 time. If you are solely relying on the flattened device tree (or
1915 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1916 to remove ATAGS support from your kernel binary. If unsure,
1917 leave this to y.
1918
1919config DEPRECATED_PARAM_STRUCT
1920 bool "Provide old way to pass kernel parameters"
1921 depends on ATAGS
1922 help
1923 This was deprecated in 2001 and announced to live on for 5 years.
1924 Some old boot loaders still use this way.
1925
Linus Torvalds1da177e2005-04-16 15:20:36 -07001926# Compressed boot loader in ROM. Yes, we really want to ask about
1927# TEXT and BSS so we preserve their values in the config files.
1928config ZBOOT_ROM_TEXT
1929 hex "Compressed ROM boot loader base address"
1930 default "0"
1931 help
1932 The physical address at which the ROM-able zImage is to be
1933 placed in the target. Platforms which normally make use of
1934 ROM-able zImage formats normally set this to a suitable
1935 value in their defconfig file.
1936
1937 If ZBOOT_ROM is not enabled, this has no effect.
1938
1939config ZBOOT_ROM_BSS
1940 hex "Compressed ROM boot loader BSS address"
1941 default "0"
1942 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001943 The base address of an area of read/write memory in the target
1944 for the ROM-able zImage which must be available while the
1945 decompressor is running. It must be large enough to hold the
1946 entire decompressed kernel plus an additional 128 KiB.
1947 Platforms which normally make use of ROM-able zImage formats
1948 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949
1950 If ZBOOT_ROM is not enabled, this has no effect.
1951
1952config ZBOOT_ROM
1953 bool "Compressed boot loader in ROM/flash"
1954 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1955 help
1956 Say Y here if you intend to execute your compressed kernel image
1957 (zImage) directly from ROM or flash. If unsure, say N.
1958
Simon Horman090ab3f2011-04-26 06:29:53 +01001959choice
1960 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001961 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001962 default ZBOOT_ROM_NONE
1963 help
1964 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001965 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001966 kernel image to an MMC or SD card and boot the kernel straight
1967 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001968 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001969 rest the kernel image to RAM.
1970
1971config ZBOOT_ROM_NONE
1972 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1973 help
1974 Do not load image from SD or MMC
1975
Simon Hormanf45b1142011-01-11 04:01:08 +01001976config ZBOOT_ROM_MMCIF
1977 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001978 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001979 Load image from MMCIF hardware block.
1980
1981config ZBOOT_ROM_SH_MOBILE_SDHI
1982 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1983 help
1984 Load image from SDHI hardware block
1985
1986endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001987
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001988config ARM_APPENDED_DTB
1989 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001990 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001991 help
1992 With this option, the boot code will look for a device tree binary
1993 (DTB) appended to zImage
1994 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1995
1996 This is meant as a backward compatibility convenience for those
1997 systems with a bootloader that can't be upgraded to accommodate
1998 the documented boot protocol using a device tree.
1999
2000 Beware that there is very little in terms of protection against
2001 this option being confused by leftover garbage in memory that might
2002 look like a DTB header after a reboot if no actual DTB is appended
2003 to zImage. Do not leave this option active in a production kernel
2004 if you don't intend to always append a DTB. Proper passing of the
2005 location into r2 of a bootloader provided DTB is always preferable
2006 to this option.
2007
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002008config ARM_ATAG_DTB_COMPAT
2009 bool "Supplement the appended DTB with traditional ATAG information"
2010 depends on ARM_APPENDED_DTB
2011 help
2012 Some old bootloaders can't be updated to a DTB capable one, yet
2013 they provide ATAGs with memory configuration, the ramdisk address,
2014 the kernel cmdline string, etc. Such information is dynamically
2015 provided by the bootloader and can't always be stored in a static
2016 DTB. To allow a device tree enabled kernel to be used with such
2017 bootloaders, this option allows zImage to extract the information
2018 from the ATAG list and store it at run time into the appended DTB.
2019
Genoud Richardd0f34a12012-06-26 16:37:59 +01002020choice
2021 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2022 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2023
2024config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2025 bool "Use bootloader kernel arguments if available"
2026 help
2027 Uses the command-line options passed by the boot loader instead of
2028 the device tree bootargs property. If the boot loader doesn't provide
2029 any, the device tree bootargs property will be used.
2030
2031config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2032 bool "Extend with bootloader kernel arguments"
2033 help
2034 The command-line arguments provided by the boot loader will be
2035 appended to the the device tree bootargs property.
2036
2037endchoice
2038
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039config CMDLINE
2040 string "Default kernel command string"
2041 default ""
2042 help
2043 On some architectures (EBSA110 and CATS), there is currently no way
2044 for the boot loader to pass arguments to the kernel. For these
2045 architectures, you should supply some command-line options at build
2046 time by entering them here. As a minimum, you should specify the
2047 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2048
Victor Boivie4394c122011-05-04 17:07:55 +01002049choice
2050 prompt "Kernel command line type" if CMDLINE != ""
2051 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002052 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002053
2054config CMDLINE_FROM_BOOTLOADER
2055 bool "Use bootloader kernel arguments if available"
2056 help
2057 Uses the command-line options passed by the boot loader. If
2058 the boot loader doesn't provide any, the default kernel command
2059 string provided in CMDLINE will be used.
2060
2061config CMDLINE_EXTEND
2062 bool "Extend bootloader kernel arguments"
2063 help
2064 The command-line arguments provided by the boot loader will be
2065 appended to the default kernel command string.
2066
Alexander Holler92d20402010-02-16 19:04:53 +01002067config CMDLINE_FORCE
2068 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002069 help
2070 Always use the default kernel command string, even if the boot
2071 loader passes other arguments to the kernel.
2072 This is useful if you cannot or don't want to change the
2073 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002074endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002075
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076config XIP_KERNEL
2077 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002078 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079 help
2080 Execute-In-Place allows the kernel to run from non-volatile storage
2081 directly addressable by the CPU, such as NOR flash. This saves RAM
2082 space since the text section of the kernel is not loaded from flash
2083 to RAM. Read-write sections, such as the data section and stack,
2084 are still copied to RAM. The XIP kernel is not compressed since
2085 it has to run directly from flash, so it will take more space to
2086 store it. The flash address used to link the kernel object files,
2087 and for storing it, is configuration dependent. Therefore, if you
2088 say Y here, you must know the proper physical address where to
2089 store the kernel image depending on your own flash memory usage.
2090
2091 Also note that the make target becomes "make xipImage" rather than
2092 "make zImage" or "make Image". The final kernel binary to put in
2093 ROM memory will be arch/arm/boot/xipImage.
2094
2095 If unsure, say N.
2096
2097config XIP_PHYS_ADDR
2098 hex "XIP Kernel Physical Location"
2099 depends on XIP_KERNEL
2100 default "0x00080000"
2101 help
2102 This is the physical address in your flash memory the kernel will
2103 be linked for and stored to. This address is dependent on your
2104 own flash usage.
2105
Richard Purdiec587e4a2007-02-06 21:29:00 +01002106config KEXEC
2107 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002108 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002109 help
2110 kexec is a system call that implements the ability to shutdown your
2111 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002112 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002113 you can start any kernel with it, not just Linux.
2114
2115 It is an ongoing process to be certain the hardware in a machine
2116 is properly shutdown, so do not be surprised if this code does not
2117 initially work for you. It may help to enable device hotplugging
2118 support.
2119
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002120config ATAGS_PROC
2121 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002122 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002123 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002124 help
2125 Should the atags used to boot the kernel be exported in an "atags"
2126 file in procfs. Useful with kexec.
2127
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002128config CRASH_DUMP
2129 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002130 help
2131 Generate crash dump after being started by kexec. This should
2132 be normally only set in special crash dump kernels which are
2133 loaded in the main kernel with kexec-tools into a specially
2134 reserved region and then later executed after a crash by
2135 kdump/kexec. The crash dump kernel must be compiled to a
2136 memory address not used by the main kernel
2137
2138 For more details see Documentation/kdump/kdump.txt
2139
Eric Miaoe69edc792010-07-05 15:56:50 +02002140config AUTO_ZRELADDR
2141 bool "Auto calculation of the decompressed kernel image address"
2142 depends on !ZBOOT_ROM && !ARCH_U300
2143 help
2144 ZRELADDR is the physical address where the decompressed kernel
2145 image will be placed. If AUTO_ZRELADDR is selected, the address
2146 will be determined at run-time by masking the current IP with
2147 0xf8000000. This assumes the zImage being placed in the first 128MB
2148 from start of memory.
2149
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150endmenu
2151
Russell Kingac9d7ef2008-08-18 17:26:00 +01002152menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153
Ben Dooks89c52ed2009-07-30 23:23:24 +01002154if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155
2156source "drivers/cpufreq/Kconfig"
2157
Yong Shen64f102b2010-10-21 21:18:59 +08002158config CPU_FREQ_IMX
2159 tristate "CPUfreq driver for i.MX CPUs"
2160 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002161 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002162 help
2163 This enables the CPUfreq driver for i.MX CPUs.
2164
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165config CPU_FREQ_SA1100
2166 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002167
2168config CPU_FREQ_SA1110
2169 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002170
2171config CPU_FREQ_INTEGRATOR
2172 tristate "CPUfreq driver for ARM Integrator CPUs"
2173 depends on ARCH_INTEGRATOR && CPU_FREQ
2174 default y
2175 help
2176 This enables the CPUfreq driver for ARM Integrator CPUs.
2177
2178 For details, take a look at <file:Documentation/cpu-freq>.
2179
2180 If in doubt, say Y.
2181
Russell King9e2697f2007-12-14 13:30:14 +00002182config CPU_FREQ_PXA
2183 bool
2184 depends on CPU_FREQ && ARCH_PXA && PXA25x
2185 default y
2186 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002187 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002188
Ben Dooks9d56c022009-07-30 23:23:25 +01002189config CPU_FREQ_S3C
2190 bool
2191 help
2192 Internal configuration node for common cpufreq on Samsung SoC
2193
2194config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002195 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002196 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002197 select CPU_FREQ_S3C
2198 help
2199 This enables the CPUfreq driver for the Samsung S3C24XX family
2200 of CPUs.
2201
2202 For details, take a look at <file:Documentation/cpu-freq>.
2203
2204 If in doubt, say N.
2205
2206config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002207 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002208 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002209 help
2210 Compile in support for changing the PLL frequency from the
2211 S3C24XX series CPUfreq driver. The PLL takes time to settle
2212 after a frequency change, so by default it is not enabled.
2213
2214 This also means that the PLL tables for the selected CPU(s) will
2215 be built which may increase the size of the kernel image.
2216
2217config CPU_FREQ_S3C24XX_DEBUG
2218 bool "Debug CPUfreq Samsung driver core"
2219 depends on CPU_FREQ_S3C24XX
2220 help
2221 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2222
2223config CPU_FREQ_S3C24XX_IODEBUG
2224 bool "Debug CPUfreq Samsung driver IO timing"
2225 depends on CPU_FREQ_S3C24XX
2226 help
2227 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2228
Ben Dookse6d197a2009-07-30 23:23:42 +01002229config CPU_FREQ_S3C24XX_DEBUGFS
2230 bool "Export debugfs for CPUFreq"
2231 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2232 help
2233 Export status information via debugfs.
2234
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235endif
2236
Russell Kingac9d7ef2008-08-18 17:26:00 +01002237source "drivers/cpuidle/Kconfig"
2238
2239endmenu
2240
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241menu "Floating point emulation"
2242
2243comment "At least one emulation must be selected"
2244
2245config FPE_NWFPE
2246 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002247 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002248 ---help---
2249 Say Y to include the NWFPE floating point emulator in the kernel.
2250 This is necessary to run most binaries. Linux does not currently
2251 support floating point hardware so you need to say Y here even if
2252 your machine has an FPA or floating point co-processor podule.
2253
2254 You may say N here if you are going to load the Acorn FPEmulator
2255 early in the bootup.
2256
2257config FPE_NWFPE_XP
2258 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002259 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260 help
2261 Say Y to include 80-bit support in the kernel floating-point
2262 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2263 Note that gcc does not generate 80-bit operations by default,
2264 so in most cases this option only enlarges the size of the
2265 floating point emulator without any good reason.
2266
2267 You almost surely want to say N here.
2268
2269config FPE_FASTFPE
2270 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002271 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002272 ---help---
2273 Say Y here to include the FAST floating point emulator in the kernel.
2274 This is an experimental much faster emulator which now also has full
2275 precision for the mantissa. It does not support any exceptions.
2276 It is very simple, and approximately 3-6 times faster than NWFPE.
2277
2278 It should be sufficient for most programs. It may be not suitable
2279 for scientific calculations, but you have to check this for yourself.
2280 If you do not feel you need a faster FP emulation you should better
2281 choose NWFPE.
2282
2283config VFP
2284 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002285 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002286 help
2287 Say Y to include VFP support code in the kernel. This is needed
2288 if your hardware includes a VFP unit.
2289
2290 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2291 release notes and additional status information.
2292
2293 Say N if your target does not have VFP hardware.
2294
Catalin Marinas25ebee02007-09-25 15:22:24 +01002295config VFPv3
2296 bool
2297 depends on VFP
2298 default y if CPU_V7
2299
Catalin Marinasb5872db2008-01-10 19:16:17 +01002300config NEON
2301 bool "Advanced SIMD (NEON) Extension support"
2302 depends on VFPv3 && CPU_V7
2303 help
2304 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2305 Extension.
2306
Linus Torvalds1da177e2005-04-16 15:20:36 -07002307endmenu
2308
2309menu "Userspace binary formats"
2310
2311source "fs/Kconfig.binfmt"
2312
2313config ARTHUR
2314 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002315 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002316 help
2317 Say Y here to include the kernel code necessary if you want to run
2318 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2319 experimental; if this sounds frightening, say N and sleep in peace.
2320 You can also say M here to compile this support as a module (which
2321 will be called arthur).
2322
2323endmenu
2324
2325menu "Power management options"
2326
Russell Kingeceab4a2005-11-15 11:31:41 +00002327source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002328
Johannes Bergf4cb5702007-12-08 02:14:00 +01002329config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002330 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002331 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002332 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002333 def_bool y
2334
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002335config ARM_CPU_SUSPEND
2336 def_bool PM_SLEEP
2337
Linus Torvalds1da177e2005-04-16 15:20:36 -07002338endmenu
2339
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002340source "net/Kconfig"
2341
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002342source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002343
2344source "fs/Kconfig"
2345
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346source "arch/arm/Kconfig.debug"
2347
2348source "security/Kconfig"
2349
2350source "crypto/Kconfig"
2351
2352source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002353
2354source "arch/arm/kvm/Kconfig"