blob: 12ea3b3d49a9eaf1b1317823c98945ec30921ab0 [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
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000052 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select PERF_USE_VMALLOC
54 select RTC_LIB
55 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093056 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
57 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040058 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050059 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050060 select OLD_SIGACTION
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 help
62 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000063 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000065 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 Europe. There is an ARM Linux project with a web page at
67 <http://www.arm.linux.org.uk/>.
68
Russell King74facff2011-06-02 11:16:22 +010069config ARM_HAS_SG_CHAIN
70 bool
71
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020072config NEED_SG_DMA_LENGTH
73 bool
74
75config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020076 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010077 select ARM_HAS_SG_CHAIN
78 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020079
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090080if ARM_DMA_USE_IOMMU
81
82config ARM_DMA_IOMMU_ALIGNMENT
83 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
84 range 4 9
85 default 8
86 help
87 DMA mapping framework by default aligns all buffers to the smallest
88 PAGE_SIZE order which is greater than or equal to the requested buffer
89 size. This works well for buffers up to a few hundreds kilobytes, but
90 for larger buffers it just a waste of address space. Drivers which has
91 relatively small addressing window (like 64Mib) might run out of
92 virtual space with just a few allocations.
93
94 With this parameter you can specify the maximum PAGE_SIZE order for
95 DMA IOMMU buffers. Larger buffers will be aligned only to this
96 specified order. The order is expressed as a power of two multiplied
97 by the PAGE_SIZE.
98
99endif
100
Russell King1a189b92008-04-13 21:41:55 +0100101config HAVE_PWM
102 bool
103
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100104config MIGHT_HAVE_PCI
105 bool
106
Ralf Baechle75e71532007-02-09 17:08:58 +0000107config SYS_SUPPORTS_APM_EMULATION
108 bool
109
David Brownell0a938b92007-03-05 00:30:18 -0800110config GENERIC_GPIO
111 bool
David Brownell0a938b92007-03-05 00:30:18 -0800112
Linus Walleijbc581772009-09-15 17:30:37 +0100113config HAVE_TCM
114 bool
115 select GENERIC_ALLOCATOR
116
Russell Kinge119bff2010-01-10 17:23:29 +0000117config HAVE_PROC_CPU
118 bool
119
Al Viro5ea81762007-02-11 15:41:31 +0000120config NO_IOPORT
121 bool
Al Viro5ea81762007-02-11 15:41:31 +0000122
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123config EISA
124 bool
125 ---help---
126 The Extended Industry Standard Architecture (EISA) bus was
127 developed as an open alternative to the IBM MicroChannel bus.
128
129 The EISA bus provided some of the features of the IBM MicroChannel
130 bus while maintaining backward compatibility with cards made for
131 the older ISA bus. The EISA bus saw limited use between 1988 and
132 1995 when it was made obsolete by the PCI bus.
133
134 Say Y here if you are building a kernel for an EISA-based machine.
135
136 Otherwise, say N.
137
138config SBUS
139 bool
140
Russell Kingf16fb1e2007-04-28 09:59:37 +0100141config STACKTRACE_SUPPORT
142 bool
143 default y
144
Nicolas Pitref76e9152008-04-24 01:31:46 -0400145config HAVE_LATENCYTOP_SUPPORT
146 bool
147 depends on !SMP
148 default y
149
Russell Kingf16fb1e2007-04-28 09:59:37 +0100150config LOCKDEP_SUPPORT
151 bool
152 default y
153
Russell King7ad1bcb2006-08-27 12:07:02 +0100154config TRACE_IRQFLAGS_SUPPORT
155 bool
156 default y
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config RWSEM_GENERIC_SPINLOCK
159 bool
160 default y
161
162config RWSEM_XCHGADD_ALGORITHM
163 bool
164
David Howellsf0d1b0b2006-12-08 02:37:49 -0800165config ARCH_HAS_ILOG2_U32
166 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800167
168config ARCH_HAS_ILOG2_U64
169 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800170
Ben Dooks89c52ed2009-07-30 23:23:24 +0100171config ARCH_HAS_CPUFREQ
172 bool
173 help
174 Internal node to signify that the ARCH has CPUFREQ support
175 and that the relevant menu configurations are displayed for
176 it.
177
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800178config GENERIC_HWEIGHT
179 bool
180 default y
181
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182config GENERIC_CALIBRATE_DELAY
183 bool
184 default y
185
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100186config ARCH_MAY_HAVE_PC_FDC
187 bool
188
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800189config ZONE_DMA
190 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800191
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800192config NEED_DMA_MAP_STATE
193 def_bool y
194
Rob Herring58af4a22012-03-20 14:33:01 -0500195config ARCH_HAS_DMA_SET_COHERENT_MASK
196 bool
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198config GENERIC_ISA_DMA
199 bool
200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201config FIQ
202 bool
203
Rob Herring13a50452012-02-07 09:28:22 -0600204config NEED_RET_TO_USER
205 bool
206
Al Viro034d2f52005-12-19 16:27:59 -0500207config ARCH_MTD_XIP
208 bool
209
Hyok S. Choic760fc12006-03-27 15:18:50 +0100210config VECTORS_BASE
211 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900212 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100213 default DRAM_BASE if REMAP_VECTORS_TO_RAM
214 default 0x00000000
215 help
216 The base address of exception vectors.
217
Russell Kingdc21af92011-01-04 19:09:43 +0000218config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100219 bool "Patch physical to virtual translations at runtime" if EMBEDDED
220 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100221 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000222 depends on !ARCH_REALVIEW || !SPARSEMEM
223 help
Russell King111e9a52011-05-12 10:02:42 +0100224 Patch phys-to-virt and virt-to-phys translation functions at
225 boot and module load time according to the position of the
226 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000227
Russell King111e9a52011-05-12 10:02:42 +0100228 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100229 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000230
Russell Kingc1beced2011-08-10 10:23:45 +0100231 Only disable this option if you know that you do not require
232 this feature (eg, building a kernel for a single machine) and
233 you need to shrink the kernel to the minimal size.
234
Rob Herring01464222012-08-28 13:06:41 -0500235config NEED_MACH_GPIO_H
236 bool
237 help
238 Select this when mach/gpio.h is required to provide special
239 definitions for this platform. The need for mach/gpio.h should
240 be avoided when possible.
241
Rob Herringc334bc12012-03-04 22:03:33 -0600242config NEED_MACH_IO_H
243 bool
244 help
245 Select this when mach/io.h is required to provide special
246 definitions for this platform. The need for mach/io.h should
247 be avoided when possible.
248
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400249config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400250 bool
Russell King111e9a52011-05-12 10:02:42 +0100251 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400252 Select this when mach/memory.h is required to provide special
253 definitions for this platform. The need for mach/memory.h should
254 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400255
256config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100257 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400258 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100259 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400260 help
261 Please provide the physical address corresponding to the
262 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000263
Simon Glass87e040b2011-08-16 23:44:26 +0100264config GENERIC_BUG
265 def_bool y
266 depends on BUG
267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268source "init/Kconfig"
269
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700270source "kernel/Kconfig.freezer"
271
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272menu "System Type"
273
Hyok S. Choi3c427972009-07-24 12:35:00 +0100274config MMU
275 bool "MMU-based Paged Memory Management Support"
276 default y
277 help
278 Select if you want MMU-based virtualised addressing space
279 support by paged memory management. If unsure, say 'Y'.
280
Russell Kingccf50e22010-03-15 19:03:06 +0000281#
282# The "ARM system type" choice list is ordered alphabetically by option
283# text. Please add new entries in the option alphabetic order.
284#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285choice
286 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100287 default ARCH_VERSATILE if !MMU
288 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Rob Herring387798b2012-09-06 13:41:12 -0500290config ARCH_MULTIPLATFORM
291 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100292 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500293 select ARM_PATCH_PHYS_VIRT
294 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600295 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500296 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600297 select SPARSE_IRQ
298 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600299
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100300config ARCH_INTEGRATOR
301 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100302 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100303 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200304 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200305 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100306 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100307 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000308 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100309 select MULTI_IRQ_HANDLER
310 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000311 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100312 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100313 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100314 help
315 Support for ARM's Integrator platform.
316
317config ARCH_REALVIEW
318 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100319 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100321 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200322 select COMMON_CLK
323 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100324 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100325 select GPIO_PL061 if GPIOLIB
326 select ICST
327 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000328 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000329 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330 help
331 This enables support for ARM Ltd RealView boards.
332
333config ARCH_VERSATILE
334 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100335 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100337 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100338 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100339 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100340 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900341 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000342 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000343 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000344 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100345 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100346 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100347 help
348 This enables support for ARM Ltd Versatile board.
349
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100350config ARCH_AT91
351 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100352 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100353 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100354 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100355 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500356 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500357 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800358 select PINCTRL
359 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100361 This enables support for systems based on Atmel
362 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100363
Simon Arlottec9653b2012-05-26 01:04:43 -0600364config ARCH_BCM2835
365 bool "Broadcom BCM2835 family"
Stephen Warren805504a2012-09-27 21:54:21 -0600366 select ARCH_REQUIRE_GPIOLIB
Simon Arlottec9653b2012-05-26 01:04:43 -0600367 select ARM_AMBA
368 select ARM_ERRATA_411920
369 select ARM_TIMER_SP804
370 select CLKDEV_LOOKUP
Stephen Warrenc1b724f2013-01-03 20:23:13 -0700371 select CLKSRC_OF
Simon Arlottec9653b2012-05-26 01:04:43 -0600372 select COMMON_CLK
373 select CPU_V6
374 select GENERIC_CLOCKEVENTS
375 select MULTI_IRQ_HANDLER
Stephen Warren805504a2012-09-27 21:54:21 -0600376 select PINCTRL
377 select PINCTRL_BCM2835
Simon Arlottec9653b2012-05-26 01:04:43 -0600378 select SPARSE_IRQ
379 select USE_OF
380 help
381 This enables support for the Broadcom BCM2835 SoC. This SoC is
382 use in the Raspberry Pi, and Roku 2 devices.
383
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300384config ARCH_CNS3XXX
385 bool "Cavium Networks CNS3XXX family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100386 select ARM_GIC
Imre Kaloz00d27112011-07-07 12:19:09 +0200387 select CPU_V6K
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300388 select GENERIC_CLOCKEVENTS
Dave Martince5ea9f2011-11-29 15:56:19 +0000389 select MIGHT_HAVE_CACHE_L2X0
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100390 select MIGHT_HAVE_PCI
Anton Vorontsov5f32f7a2010-05-28 13:10:52 +0400391 select PCI_DOMAINS if PCI
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300392 help
393 Support for Cavium Networks CNS3XXX platform.
394
Russell King93e22562012-10-12 14:20:52 +0100395config ARCH_CLPS711X
396 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400397 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400398 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100399 select CLKDEV_LOOKUP
400 select COMMON_CLK
401 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400402 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400403 select MULTI_IRQ_HANDLER
Russell King93e22562012-10-12 14:20:52 +0100404 select NEED_MACH_MEMORY_H
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400405 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100406 help
407 Support for Cirrus Logic 711x/721x/731x based boards.
408
Russell King788c9702009-04-26 14:21:59 +0100409config ARCH_GEMINI
410 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100411 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000412 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100413 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100414 help
415 Support for the Cortina Systems Gemini family SoCs
416
Barry Song156a0992012-08-23 13:41:58 +0800417config ARCH_SIRF
418 bool "CSR SiRF"
Arnd Bergmannf6387092012-07-04 14:33:01 +0000419 select ARCH_REQUIRE_GPIOLIB
Barry Song20ddfa92012-12-20 17:14:10 +0800420 select AUTO_ZRELADDR
Binghua Duan198678b2012-08-20 06:42:36 +0000421 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100422 select GENERIC_CLOCKEVENTS
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200423 select GENERIC_IRQ_CHIP
Dave Martince5ea9f2011-11-29 15:56:19 +0000424 select MIGHT_HAVE_CACHE_L2X0
Russell Kingb1b3f492012-10-06 17:12:25 +0100425 select NO_IOPORT
Barry Songcbd8d842012-05-15 10:35:46 +0800426 select PINCTRL
427 select PINCTRL_SIRF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200428 select USE_OF
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200429 help
Barry Song156a0992012-08-23 13:41:58 +0800430 Support for CSR SiRFprimaII/Marco/Polo platforms
Arnd Bergmann3a6cb8c2011-07-17 21:43:26 +0200431
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432config ARCH_EBSA110
433 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100434 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000435 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100436 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600437 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400438 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100439 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 help
441 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000442 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 Ethernet interface, two PCMCIA sockets, two serial ports and a
444 parallel port.
445
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000446config ARCH_EP93XX
447 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100448 select ARCH_HAS_HOLES_MEMORYMODEL
449 select ARCH_REQUIRE_GPIOLIB
450 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000451 select ARM_AMBA
452 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100453 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100454 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100455 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000456 help
457 This enables support for the Cirrus EP93xx series of CPUs.
458
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459config ARCH_FOOTBRIDGE
460 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000461 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000463 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200464 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600465 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400466 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
468 Support for systems based on the DC21285 companion chip
469 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800471config ARCH_MXS
472 bool "Freescale MXS-based"
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800473 select ARCH_REQUIRE_GPIOLIB
Sascha Hauerb9214b92011-01-13 16:59:25 +0100474 select CLKDEV_LOOKUP
Russell King5c61ddc2011-05-08 17:21:49 +0100475 select CLKSRC_MMIO
Shawn Guo26646812012-04-29 00:02:39 +0800476 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100477 select GENERIC_CLOCKEVENTS
Shawn Guo6abda3e2011-12-20 16:12:34 +0800478 select HAVE_CLK_PREPARE
Shawn Guo4e0a1b82012-08-20 10:14:56 +0800479 select MULTI_IRQ_HANDLER
Shawn Guoa0f5e362012-05-06 23:13:13 +0800480 select PINCTRL
Shawn Guoc2668202012-08-20 21:52:12 +0800481 select SPARSE_IRQ
Shawn Guo6c4d4ef2012-05-04 21:42:41 +0800482 select USE_OF
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800483 help
484 Support for Freescale MXS-based family of processors
485
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100486config ARCH_NETX
487 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100489 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000490 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100491 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000492 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100493 This enables support for systems based on the Hilscher NetX Soc
494
495config ARCH_H720X
496 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100497 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000498 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100499 select ISA_DMA_API
500 help
501 This enables support for systems based on the Hynix HMS720x
502
Russell King3b938be2007-05-12 11:25:44 +0100503config ARCH_IOP13XX
504 bool "IOP13xx-based"
505 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100506 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100507 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400508 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600509 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100510 select PCI
511 select PLAT_IOP
512 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100513 help
514 Support for Intel's IOP13XX (XScale) family of processors.
515
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100516config ARCH_IOP32X
517 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100518 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100519 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000520 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500521 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600522 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100523 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100524 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000525 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100526 Support for Intel's 80219 and IOP32X (XScale) family of
527 processors.
528
529config ARCH_IOP33X
530 bool "IOP33x-based"
531 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100532 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000533 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500534 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600535 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100536 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100537 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100538 help
539 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540
Russell King3b938be2007-05-12 11:25:44 +0100541config ARCH_IXP4XX
542 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100543 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500544 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100545 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100546 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000547 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100548 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100549 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100550 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600551 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100552 help
Russell King3b938be2007-05-12 11:25:44 +0100553 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100554
Saeed Bisharaedabd382009-08-06 15:12:43 +0300555config ARCH_DOVE
556 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300557 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100558 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300559 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100560 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100561 select PINCTRL
562 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200563 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100564 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300565 help
566 Support for the Marvell Dove SoC 88AP510
567
Saeed Bishara651c74c2008-06-22 22:45:06 +0200568config ARCH_KIRKWOOD
569 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700570 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100571 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200572 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700574 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100575 select PINCTRL
576 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200577 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200578 help
579 Support for the following Marvell Kirkwood series SoCs:
580 88F6180, 88F6192 and 88F6281.
581
Russell King788c9702009-04-26 14:21:59 +0100582config ARCH_MV78XX0
583 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700584 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100585 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100586 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100587 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200588 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100589 help
590 Support for the following Marvell MV78xx0 series SoCs:
591 MV781x0, MV782x0.
592
593config ARCH_ORION5X
594 bool "Marvell Orion"
595 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700596 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100597 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100598 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100599 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200600 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100601 help
602 Support for the following Marvell Orion 5x series SoCs:
603 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
604 Orion-2 (5281), Orion-1-90 (6183).
605
606config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500607 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100608 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100609 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100610 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100611 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100612 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800613 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800614 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100615 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800616 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100617 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400618 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100619 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500620 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100621
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100622config ARCH_KS8695
623 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100624 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200625 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100626 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200627 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100628 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100629 help
630 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
631 System-on-Chip devices.
632
Russell King788c9702009-04-26 14:21:59 +0100633config ARCH_W90X900
634 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100635 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100636 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100637 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100638 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100639 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200640 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100641 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
642 At present, the w90x900 has been renamed nuc900, regarding
643 the ARM series product line, you can login the following
644 link address to know more.
645
646 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
647 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400648
Russell King93e22562012-10-12 14:20:52 +0100649config ARCH_LPC32XX
650 bool "NXP LPC32XX"
651 select ARCH_REQUIRE_GPIOLIB
652 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000653 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100654 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100655 select CPU_ARM926T
656 select GENERIC_CLOCKEVENTS
657 select HAVE_IDE
658 select HAVE_PWM
659 select USB_ARCH_HAS_OHCI
660 select USE_OF
661 help
662 Support for the NXP LPC32XX family of processors
663
wanzongshuna62e9032009-12-31 15:06:05 +0100664config ARCH_TEGRA
665 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100666 select ARCH_HAS_CPUFREQ
Stephen Warren23c8c4b2013-02-07 14:43:23 -0700667 select ARCH_REQUIRE_GPIOLIB
Erik Gillingc5f80062010-01-21 16:53:02 -0800668 select CLKDEV_LOOKUP
669 select CLKSRC_MMIO
Stephen Warren1711b1e2012-10-23 11:52:53 -0600670 select CLKSRC_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100671 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800672 select GENERIC_CLOCKEVENTS
Erik Gillingc5f80062010-01-21 16:53:02 -0800673 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000674 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000675 select MIGHT_HAVE_CACHE_L2X0
Stephen Warrenc5a4d6b2012-09-19 14:19:02 -0600676 select SPARSE_IRQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600677 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800678 help
679 This enables support for NVIDIA Tegra based systems (Tegra APX,
680 Tegra 6xx and Tegra 2 series).
681
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700683 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100684 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100685 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select ARCH_MTD_XIP
687 select ARCH_REQUIRE_GPIOLIB
688 select ARM_CPU_SUSPEND if PM
689 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100690 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100691 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100692 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800693 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100694 select HAVE_IDE
695 select MULTI_IRQ_HANDLER
696 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800697 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800698 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000699 help
eric miao2c8086a2007-09-11 19:13:17 -0700700 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701
Russell King788c9702009-04-26 14:21:59 +0100702config ARCH_MSM
703 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700704 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800705 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100706 select GENERIC_CLOCKEVENTS
707 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800708 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800709 Support for Qualcomm MSM/QSD based systems. This runs on the
710 apps processor of the MSM/QSD and depends on a shared memory
711 interface to the modem processor which runs the baseband
712 stack and controls some vital subsystems
713 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800714
Magnus Dammc793c1b2010-02-05 11:14:49 +0000715config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900716 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900717 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100718 select GENERIC_CLOCKEVENTS
719 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900720 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000721 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000722 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000723 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400724 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select NO_IOPORT
Laurent Pincharta47029c2012-12-15 23:50:56 +0100726 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100727 select PM_GENERIC_DOMAINS if PM
728 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000729 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900730 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000731
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732config ARCH_RPC
733 bool "RiscPC"
734 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100735 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100736 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000737 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100738 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200739 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100740 select HAVE_PATA_PLATFORM
741 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600742 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400743 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100745 select VIRT_TO_BUS
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
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100881 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100882 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000883 help
884 Support for the StrongARM based Digital DNARD machine, also known
885 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
Linus Walleijd98aac72009-04-27 10:21:46 +0100887config ARCH_U300
888 bool "ST-Ericsson U300 Series"
889 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100890 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100891 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200892 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100893 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100894 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200896 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100897 select CPU_ARM926T
898 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100899 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200900 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100901 help
902 Support for ST-Ericsson U300 series mobile platforms.
903
Russell Kingccf50e22010-03-15 19:03:06 +0000904config ARCH_U8500
905 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700906 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100907 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100908 select ARCH_REQUIRE_GPIOLIB
909 select ARM_AMBA
910 select CLKDEV_LOOKUP
911 select CPU_V7
912 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000913 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000914 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200915 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000916 help
917 Support for ST-Ericsson's Ux500 architecture
918
919config ARCH_NOMADIK
920 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100921 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000922 select ARM_AMBA
923 select ARM_VIC
Linus Walleij5f66d482013-01-06 02:25:20 +0100924 select CLKSRC_NOMADIK_MTU
Linus Walleij4a31bd22012-01-11 13:52:34 +0100925 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100926 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000927 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100928 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijf0159412013-02-01 09:52:05 +0100929 select USE_OF
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000930 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200931 select PINCTRL_STN8815
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200932 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000933 help
934 Support for the Nomadik platform by ST-Ericsson
935
Russell King93e22562012-10-12 14:20:52 +0100936config PLAT_SPEAR
937 bool "ST SPEAr"
Deepak Sikri42099322012-11-27 14:05:26 +0100938 select ARCH_HAS_CPUFREQ
Russell King93e22562012-10-12 14:20:52 +0100939 select ARCH_REQUIRE_GPIOLIB
940 select ARM_AMBA
941 select CLKDEV_LOOKUP
942 select CLKSRC_MMIO
943 select COMMON_CLK
944 select GENERIC_CLOCKEVENTS
945 select HAVE_CLK
946 help
947 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
948
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100949config ARCH_DAVINCI
950 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100951 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700952 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100953 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700954 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100955 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100956 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100957 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500958 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530959 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100960 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100961 help
962 Support for TI's DaVinci platform.
963
Tony Lindgrena0694862013-01-11 11:24:20 -0800964config ARCH_OMAP1
965 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600966 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100967 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100968 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800969 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100970 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200971 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100972 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100973 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800974 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100975 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800976 select HAVE_IDE
977 select IRQ_DOMAIN
978 select NEED_MACH_IO_H if PCCARD
979 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100980 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800981 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800982
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983endchoice
984
Rob Herring387798b2012-09-06 13:41:12 -0500985menu "Multiple platform selection"
986 depends on ARCH_MULTIPLATFORM
987
988comment "CPU Core family selection"
989
990config ARCH_MULTI_V4
991 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500992 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100993 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500994
995config ARCH_MULTI_V4T
996 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500997 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100998 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500999
1000config ARCH_MULTI_V5
1001 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001002 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001003 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -05001004
1005config ARCH_MULTI_V4_V5
1006 bool
1007
1008config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -08001009 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -05001010 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001011 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001012
1013config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -08001014 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001015 default y
1016 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001017 select ARCH_VEXPRESS
1018 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001019
1020config ARCH_MULTI_V6_V7
1021 bool
1022
1023config ARCH_MULTI_CPU_AUTO
1024 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1025 select ARCH_MULTI_V5
1026
1027endmenu
1028
Russell Kingccf50e22010-03-15 19:03:06 +00001029#
1030# This is sorted alphabetically by mach-* pathname. However, plat-*
1031# Kconfigs may be included either alphabetically (according to the
1032# plat- suffix) or along side the corresponding mach-* source.
1033#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001034source "arch/arm/mach-mvebu/Kconfig"
1035
Russell King95b8f202010-01-14 11:43:54 +00001036source "arch/arm/mach-at91/Kconfig"
1037
Christian Daudt8ac49e02012-11-19 09:46:10 -08001038source "arch/arm/mach-bcm/Kconfig"
1039
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040source "arch/arm/mach-clps711x/Kconfig"
1041
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001042source "arch/arm/mach-cns3xxx/Kconfig"
1043
Russell King95b8f202010-01-14 11:43:54 +00001044source "arch/arm/mach-davinci/Kconfig"
1045
1046source "arch/arm/mach-dove/Kconfig"
1047
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001048source "arch/arm/mach-ep93xx/Kconfig"
1049
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050source "arch/arm/mach-footbridge/Kconfig"
1051
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001052source "arch/arm/mach-gemini/Kconfig"
1053
Russell King95b8f202010-01-14 11:43:54 +00001054source "arch/arm/mach-h720x/Kconfig"
1055
Rob Herring387798b2012-09-06 13:41:12 -05001056source "arch/arm/mach-highbank/Kconfig"
1057
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058source "arch/arm/mach-integrator/Kconfig"
1059
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001060source "arch/arm/mach-iop32x/Kconfig"
1061
1062source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063
Dan Williams285f5fa2006-12-07 02:59:39 +01001064source "arch/arm/mach-iop13xx/Kconfig"
1065
Linus Torvalds1da177e2005-04-16 15:20:36 -07001066source "arch/arm/mach-ixp4xx/Kconfig"
1067
Russell King95b8f202010-01-14 11:43:54 +00001068source "arch/arm/mach-kirkwood/Kconfig"
1069
1070source "arch/arm/mach-ks8695/Kconfig"
1071
Russell King95b8f202010-01-14 11:43:54 +00001072source "arch/arm/mach-msm/Kconfig"
1073
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001074source "arch/arm/mach-mv78xx0/Kconfig"
1075
Shawn Guo3995eb82012-09-13 19:48:07 +08001076source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001078source "arch/arm/mach-mxs/Kconfig"
1079
Russell King95b8f202010-01-14 11:43:54 +00001080source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001081
Russell King95b8f202010-01-14 11:43:54 +00001082source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +00001083
Tony Lindgrend48af152005-07-10 19:58:17 +01001084source "arch/arm/plat-omap/Kconfig"
1085
1086source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087
Tony Lindgren1dbae812005-11-10 14:26:51 +00001088source "arch/arm/mach-omap2/Kconfig"
1089
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001090source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001091
Rob Herring387798b2012-09-06 13:41:12 -05001092source "arch/arm/mach-picoxcell/Kconfig"
1093
Russell King95b8f202010-01-14 11:43:54 +00001094source "arch/arm/mach-pxa/Kconfig"
1095source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001096
Russell King95b8f202010-01-14 11:43:54 +00001097source "arch/arm/mach-mmp/Kconfig"
1098
1099source "arch/arm/mach-realview/Kconfig"
1100
1101source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001102
Ben Dookscf383672009-11-10 00:14:58 +00001103source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001104
Rob Herring387798b2012-09-06 13:41:12 -05001105source "arch/arm/mach-socfpga/Kconfig"
1106
viresh kumarcee37e52010-04-01 12:31:05 +01001107source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001108
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001109source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110
Ben Dooksa08ab632008-10-21 14:06:39 +01001111if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001112source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001113endif
1114
Kukjin Kim49b7a492010-09-07 15:47:18 +09001115source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001116
Byungho Min5a7652f2009-06-23 21:39:42 +09001117source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001118
Kukjin Kim170f4e42010-02-24 16:40:44 +09001119source "arch/arm/mach-s5pv210/Kconfig"
1120
Kukjin Kim83014572011-11-06 13:54:56 +09001121source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001122
Russell King882d01f2010-03-02 23:40:15 +00001123source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124
Maxime Ripard3b526342012-11-08 12:40:16 +01001125source "arch/arm/mach-sunxi/Kconfig"
1126
Barry Song156a0992012-08-23 13:41:58 +08001127source "arch/arm/mach-prima2/Kconfig"
1128
Erik Gillingc5f80062010-01-21 16:53:02 -08001129source "arch/arm/mach-tegra/Kconfig"
1130
Russell King95b8f202010-01-14 11:43:54 +00001131source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132
Russell King95b8f202010-01-14 11:43:54 +00001133source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134
1135source "arch/arm/mach-versatile/Kconfig"
1136
Russell Kingceade892010-02-11 21:44:53 +00001137source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001138source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001139
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001140source "arch/arm/mach-virt/Kconfig"
1141
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001142source "arch/arm/mach-vt8500/Kconfig"
1143
wanzongshun7ec80dd2008-12-03 03:55:38 +01001144source "arch/arm/mach-w90x900/Kconfig"
1145
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001146source "arch/arm/mach-zynq/Kconfig"
1147
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148# Definitions to make life easier
1149config ARCH_ACORN
1150 bool
1151
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001152config PLAT_IOP
1153 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001154 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001155
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001156config PLAT_ORION
1157 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001158 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001159 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001160 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001161 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001162
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001163config PLAT_ORION_LEGACY
1164 bool
1165 select PLAT_ORION
1166
Eric Miaobd5ce432009-01-20 12:06:01 +08001167config PLAT_PXA
1168 bool
1169
Russell Kingf4b8b312010-01-14 12:48:06 +00001170config PLAT_VERSATILE
1171 bool
1172
Russell Kinge3887712010-01-14 13:30:16 +00001173config ARM_TIMER_SP804
1174 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001175 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001176 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001177
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178source arch/arm/mm/Kconfig
1179
Russell King958cab02011-12-11 10:04:00 +00001180config ARM_NR_BANKS
1181 int
1182 default 16 if ARCH_EP93XX
1183 default 8
1184
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001185config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001186 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001187 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001188 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001189 help
1190 Enable support for iWMMXt context switching at run time if
1191 running on a CPU that supports it.
1192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193config XSCALE_PMU
1194 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001195 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 default y
1197
eric miao52108642010-12-13 09:42:34 +01001198config MULTI_IRQ_HANDLER
1199 bool
1200 help
1201 Allow each machine to specify it's own IRQ handler at run time.
1202
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001203if !MMU
1204source "arch/arm/Kconfig-nommu"
1205endif
1206
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001207config ARM_ERRATA_326103
1208 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1209 depends on CPU_V6
1210 help
1211 Executing a SWP instruction to read-only memory does not set bit 11
1212 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1213 treat the access as a read, preventing a COW from occurring and
1214 causing the faulting task to livelock.
1215
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001216config ARM_ERRATA_411920
1217 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001218 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001219 help
1220 Invalidation of the Instruction Cache operation can
1221 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1222 It does not affect the MPCore. This option enables the ARM Ltd.
1223 recommended workaround.
1224
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001225config ARM_ERRATA_430973
1226 bool "ARM errata: Stale prediction on replaced interworking branch"
1227 depends on CPU_V7
1228 help
1229 This option enables the workaround for the 430973 Cortex-A8
1230 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1231 interworking branch is replaced with another code sequence at the
1232 same virtual address, whether due to self-modifying code or virtual
1233 to physical address re-mapping, Cortex-A8 does not recover from the
1234 stale interworking branch prediction. This results in Cortex-A8
1235 executing the new code sequence in the incorrect ARM or Thumb state.
1236 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1237 and also flushes the branch target cache at every context switch.
1238 Note that setting specific bits in the ACTLR register may not be
1239 available in non-secure mode.
1240
Catalin Marinas855c5512009-04-30 17:06:15 +01001241config ARM_ERRATA_458693
1242 bool "ARM errata: Processor deadlock when a false hazard is created"
1243 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001244 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001245 help
1246 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1247 erratum. For very specific sequences of memory operations, it is
1248 possible for a hazard condition intended for a cache line to instead
1249 be incorrectly associated with a different cache line. This false
1250 hazard might then cause a processor deadlock. The workaround enables
1251 the L1 caching of the NEON accesses and disables the PLD instruction
1252 in the ACTLR register. Note that setting specific bits in the ACTLR
1253 register may not be available in non-secure mode.
1254
Catalin Marinas0516e462009-04-30 17:06:20 +01001255config ARM_ERRATA_460075
1256 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1257 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001258 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001259 help
1260 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1261 erratum. Any asynchronous access to the L2 cache may encounter a
1262 situation in which recent store transactions to the L2 cache are lost
1263 and overwritten with stale memory contents from external memory. The
1264 workaround disables the write-allocate mode for the L2 cache via the
1265 ACTLR register. Note that setting specific bits in the ACTLR register
1266 may not be available in non-secure mode.
1267
Will Deacon9f050272010-09-14 09:51:43 +01001268config ARM_ERRATA_742230
1269 bool "ARM errata: DMB operation may be faulty"
1270 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001271 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001272 help
1273 This option enables the workaround for the 742230 Cortex-A9
1274 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1275 between two write operations may not ensure the correct visibility
1276 ordering of the two writes. This workaround sets a specific bit in
1277 the diagnostic register of the Cortex-A9 which causes the DMB
1278 instruction to behave as a DSB, ensuring the correct behaviour of
1279 the two writes.
1280
Will Deacona672e992010-09-14 09:53:02 +01001281config ARM_ERRATA_742231
1282 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1283 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001284 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001285 help
1286 This option enables the workaround for the 742231 Cortex-A9
1287 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1288 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1289 accessing some data located in the same cache line, may get corrupted
1290 data due to bad handling of the address hazard when the line gets
1291 replaced from one of the CPUs at the same time as another CPU is
1292 accessing it. This workaround sets specific bits in the diagnostic
1293 register of the Cortex-A9 which reduces the linefill issuing
1294 capabilities of the processor.
1295
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001296config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001297 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001298 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001299 help
1300 The PL310 L2 cache controller implements three types of Clean &
1301 Invalidate maintenance operations: by Physical Address
1302 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1303 They are architecturally defined to behave as the execution of a
1304 clean operation followed immediately by an invalidate operation,
1305 both performing to the same memory location. This functionality
1306 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001307 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001308
1309config ARM_ERRATA_720789
1310 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001311 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001312 help
1313 This option enables the workaround for the 720789 Cortex-A9 (prior to
1314 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1315 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1316 As a consequence of this erratum, some TLB entries which should be
1317 invalidated are not, resulting in an incoherency in the system page
1318 tables. The workaround changes the TLB flushing routines to invalidate
1319 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001320
Russell King1f0090a2011-03-16 23:35:25 +00001321config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001322 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001323 depends on CACHE_L2X0
1324 help
1325 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1326 operation (offset 0x7FC). This operation runs in background so that
1327 PL310 can handle normal accesses while it is in progress. Under very
1328 rare circumstances, due to this erratum, write data can be lost when
1329 PL310 treats a cacheable write transaction during a Clean &
1330 Invalidate by Way operation.
1331
Will Deacon475d92f2010-09-28 14:02:02 +01001332config ARM_ERRATA_743622
1333 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1334 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001335 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001336 help
1337 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001338 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001339 optimisation in the Cortex-A9 Store Buffer may lead to data
1340 corruption. This workaround sets a specific bit in the diagnostic
1341 register of the Cortex-A9 which disables the Store Buffer
1342 optimisation, preventing the defect from occurring. This has no
1343 visible impact on the overall performance or power consumption of the
1344 processor.
1345
Will Deacon9a27c272011-02-18 16:36:35 +01001346config ARM_ERRATA_751472
1347 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001348 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001349 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001350 help
1351 This option enables the workaround for the 751472 Cortex-A9 (prior
1352 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1353 completion of a following broadcasted operation if the second
1354 operation is received by a CPU before the ICIALLUIS has completed,
1355 potentially leading to corrupted entries in the cache or TLB.
1356
Will Deaconfa0ce402011-11-14 17:24:57 +01001357config PL310_ERRATA_753970
1358 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001359 depends on CACHE_PL310
1360 help
1361 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1362
1363 Under some condition the effect of cache sync operation on
1364 the store buffer still remains when the operation completes.
1365 This means that the store buffer is always asked to drain and
1366 this prevents it from merging any further writes. The workaround
1367 is to replace the normal offset of cache sync operation (0x730)
1368 by another offset targeting an unmapped PL310 register 0x740.
1369 This has the same effect as the cache sync operation: store buffer
1370 drain and waiting for all buffers empty.
1371
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001372config ARM_ERRATA_754322
1373 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1374 depends on CPU_V7
1375 help
1376 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1377 r3p*) erratum. A speculative memory access may cause a page table walk
1378 which starts prior to an ASID switch but completes afterwards. This
1379 can populate the micro-TLB with a stale entry which may be hit with
1380 the new ASID. This workaround places two dsb instructions in the mm
1381 switching code so that no page table walks can cross the ASID switch.
1382
Will Deacon5dab26af2011-03-04 12:38:54 +01001383config ARM_ERRATA_754327
1384 bool "ARM errata: no automatic Store Buffer drain"
1385 depends on CPU_V7 && SMP
1386 help
1387 This option enables the workaround for the 754327 Cortex-A9 (prior to
1388 r2p0) erratum. The Store Buffer does not have any automatic draining
1389 mechanism and therefore a livelock may occur if an external agent
1390 continuously polls a memory location waiting to observe an update.
1391 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1392 written polling loops from denying visibility of updates to memory.
1393
Catalin Marinas145e10e2011-08-15 11:04:41 +01001394config ARM_ERRATA_364296
1395 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1396 depends on CPU_V6 && !SMP
1397 help
1398 This options enables the workaround for the 364296 ARM1136
1399 r0p2 erratum (possible cache data corruption with
1400 hit-under-miss enabled). It sets the undocumented bit 31 in
1401 the auxiliary control register and the FI bit in the control
1402 register, thus disabling hit-under-miss without putting the
1403 processor into full low interrupt latency mode. ARM11MPCore
1404 is not affected.
1405
Will Deaconf630c1b2011-09-15 11:45:15 +01001406config ARM_ERRATA_764369
1407 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1408 depends on CPU_V7 && SMP
1409 help
1410 This option enables the workaround for erratum 764369
1411 affecting Cortex-A9 MPCore with two or more processors (all
1412 current revisions). Under certain timing circumstances, a data
1413 cache line maintenance operation by MVA targeting an Inner
1414 Shareable memory region may fail to proceed up to either the
1415 Point of Coherency or to the Point of Unification of the
1416 system. This workaround adds a DSB instruction before the
1417 relevant cache maintenance functions and sets a specific bit
1418 in the diagnostic control register of the SCU.
1419
Will Deacon11ed0ba2011-11-14 17:24:58 +01001420config PL310_ERRATA_769419
1421 bool "PL310 errata: no automatic Store Buffer drain"
1422 depends on CACHE_L2X0
1423 help
1424 On revisions of the PL310 prior to r3p2, the Store Buffer does
1425 not automatically drain. This can cause normal, non-cacheable
1426 writes to be retained when the memory system is idle, leading
1427 to suboptimal I/O performance for drivers using coherent DMA.
1428 This option adds a write barrier to the cpu_idle loop so that,
1429 on systems with an outer cache, the store buffer is drained
1430 explicitly.
1431
Simon Horman7253b852012-09-28 02:12:45 +01001432config ARM_ERRATA_775420
1433 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1434 depends on CPU_V7
1435 help
1436 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1437 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1438 operation aborts with MMU exception, it might cause the processor
1439 to deadlock. This workaround puts DSB before executing ISB if
1440 an abort may occur on cache maintenance.
1441
Linus Torvalds1da177e2005-04-16 15:20:36 -07001442endmenu
1443
1444source "arch/arm/common/Kconfig"
1445
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446menu "Bus support"
1447
1448config ARM_AMBA
1449 bool
1450
1451config ISA
1452 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453 help
1454 Find out whether you have ISA slots on your motherboard. ISA is the
1455 name of a bus system, i.e. the way the CPU talks to the other stuff
1456 inside your box. Other bus systems are PCI, EISA, MicroChannel
1457 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1458 newer boards don't support it. If you have ISA, say Y, otherwise N.
1459
Russell King065909b2006-01-04 15:44:16 +00001460# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461config ISA_DMA
1462 bool
Russell King065909b2006-01-04 15:44:16 +00001463 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001464
Russell King065909b2006-01-04 15:44:16 +00001465# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001466config ISA_DMA_API
1467 bool
Al Viro5cae8412005-05-04 05:39:22 +01001468
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001470 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471 help
1472 Find out whether you have a PCI motherboard. PCI is the name of a
1473 bus system, i.e. the way the CPU talks to the other stuff inside
1474 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1475 VESA. If you have PCI, say Y, otherwise N.
1476
Anton Vorontsov52882172010-04-19 13:20:49 +01001477config PCI_DOMAINS
1478 bool
1479 depends on PCI
1480
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001481config PCI_NANOENGINE
1482 bool "BSE nanoEngine PCI support"
1483 depends on SA1100_NANOENGINE
1484 help
1485 Enable PCI on the BSE nanoEngine board.
1486
Matthew Wilcox36e23592007-07-10 10:54:40 -06001487config PCI_SYSCALL
1488 def_bool PCI
1489
Linus Torvalds1da177e2005-04-16 15:20:36 -07001490# Select the host bridge type
1491config PCI_HOST_VIA82C505
1492 bool
1493 depends on PCI && ARCH_SHARK
1494 default y
1495
Mike Rapoporta0113a92007-11-25 08:55:34 +01001496config PCI_HOST_ITE8152
1497 bool
1498 depends on PCI && MACH_ARMCORE
1499 default y
1500 select DMABOUNCE
1501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502source "drivers/pci/Kconfig"
1503
1504source "drivers/pcmcia/Kconfig"
1505
1506endmenu
1507
1508menu "Kernel Features"
1509
Dave Martin3b556582011-12-07 15:38:04 +00001510config HAVE_SMP
1511 bool
1512 help
1513 This option should be selected by machines which have an SMP-
1514 capable CPU.
1515
1516 The only effect of this option is to make the SMP-related
1517 options available to the user for configuration.
1518
Linus Torvalds1da177e2005-04-16 15:20:36 -07001519config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001520 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001521 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001522 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001523 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001524 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001525 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001526 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527 help
1528 This enables support for systems with more than one CPU. If you have
1529 a system with only one CPU, like most personal computers, say N. If
1530 you have a system with more than one CPU, say Y.
1531
1532 If you say N here, the kernel will run on single and multiprocessor
1533 machines, but will use only one CPU of a multiprocessor machine. If
1534 you say Y here, the kernel will run on many, but not all, single
1535 processor machines. On a single processor machine, the kernel will
1536 run faster if you say N here.
1537
Paul Bolle395cf962011-08-15 02:02:26 +02001538 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001539 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001540 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001541
1542 If you don't know what to do here, say N.
1543
Russell Kingf00ec482010-09-04 10:47:48 +01001544config SMP_ON_UP
1545 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001546 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001547 default y
1548 help
1549 SMP kernels contain instructions which fail on non-SMP processors.
1550 Enabling this option allows the kernel to modify itself to make
1551 these instructions safe. Disabling it allows about 1K of space
1552 savings.
1553
1554 If you don't know what to do here, say Y.
1555
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001556config ARM_CPU_TOPOLOGY
1557 bool "Support cpu topology definition"
1558 depends on SMP && CPU_V7
1559 default y
1560 help
1561 Support ARM cpu topology definition. The MPIDR register defines
1562 affinity between processors which is then used to describe the cpu
1563 topology of an ARM System.
1564
1565config SCHED_MC
1566 bool "Multi-core scheduler support"
1567 depends on ARM_CPU_TOPOLOGY
1568 help
1569 Multi-core scheduler support improves the CPU scheduler's decision
1570 making when dealing with multi-core CPU chips at a cost of slightly
1571 increased overhead in some places. If unsure say N here.
1572
1573config SCHED_SMT
1574 bool "SMT scheduler support"
1575 depends on ARM_CPU_TOPOLOGY
1576 help
1577 Improves the CPU scheduler's decision making when dealing with
1578 MultiThreading at a cost of slightly increased overhead in some
1579 places. If unsure say N here.
1580
Russell Kinga8cbcd92009-05-16 11:51:14 +01001581config HAVE_ARM_SCU
1582 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001583 help
1584 This option enables support for the ARM system coherency unit
1585
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001586config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001587 bool "Architected timer support"
1588 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001589 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001590 help
1591 This option enables support for the ARM architected timer
1592
Russell Kingf32f4ce2009-05-16 12:14:21 +01001593config HAVE_ARM_TWD
1594 bool
1595 depends on SMP
1596 help
1597 This options enables support for the ARM timer and watchdog unit
1598
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001599choice
1600 prompt "Memory split"
1601 default VMSPLIT_3G
1602 help
1603 Select the desired split between kernel and user memory.
1604
1605 If you are not absolutely sure what you are doing, leave this
1606 option alone!
1607
1608 config VMSPLIT_3G
1609 bool "3G/1G user/kernel split"
1610 config VMSPLIT_2G
1611 bool "2G/2G user/kernel split"
1612 config VMSPLIT_1G
1613 bool "1G/3G user/kernel split"
1614endchoice
1615
1616config PAGE_OFFSET
1617 hex
1618 default 0x40000000 if VMSPLIT_1G
1619 default 0x80000000 if VMSPLIT_2G
1620 default 0xC0000000
1621
Linus Torvalds1da177e2005-04-16 15:20:36 -07001622config NR_CPUS
1623 int "Maximum number of CPUs (2-32)"
1624 range 2 32
1625 depends on SMP
1626 default "4"
1627
Russell Kinga054a812005-11-02 22:24:33 +00001628config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001629 bool "Support for hot-pluggable CPUs"
1630 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001631 help
1632 Say Y here to experiment with turning CPUs off and on. CPUs
1633 can be controlled through /sys/devices/system/cpu.
1634
Will Deacon2bdd4242012-12-12 19:20:52 +00001635config ARM_PSCI
1636 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1637 depends on CPU_V7
1638 help
1639 Say Y here if you want Linux to communicate with system firmware
1640 implementing the PSCI specification for CPU-centric power
1641 management operations described in ARM document number ARM DEN
1642 0022A ("Power State Coordination Interface System Software on
1643 ARM processors").
1644
Russell King37ee16a2005-11-08 19:08:05 +00001645config LOCAL_TIMERS
1646 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001647 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001648 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001649 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001650 help
1651 Enable support for local timers on SMP platforms, rather then the
1652 legacy IPI broadcast method. Local timers allows the system
1653 accounting to be spread across the timer interval, preventing a
1654 "thundering herd" at every timer tick.
1655
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001656# The GPIO number here must be sorted by descending number. In case of
1657# a multiplatform kernel, we just want the highest value required by the
1658# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001659config ARCH_NR_GPIO
1660 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001661 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301662 default 512 if SOC_OMAP5
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001663 default 355 if ARCH_U8500
Maxime Riparde590b912013-01-26 15:36:51 +01001664 default 288 if ARCH_VT8500 || ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001665 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001666 default 0
1667 help
1668 Maximum number of GPIOs in the system.
1669
1670 If unsure, leave the default value.
1671
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001672source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673
Russell Kingf8065812006-03-02 22:41:59 +00001674config HZ
1675 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001676 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001677 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001678 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001679 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001680 default 100
1681
Russell Kingb28748f2013-02-17 14:40:33 +00001682config SCHED_HRTICK
1683 def_bool HIGH_RES_TIMERS
1684
Catalin Marinas16c79652009-07-24 12:33:02 +01001685config THUMB2_KERNEL
Russell King00b7ded2012-10-22 22:54:30 +01001686 bool "Compile the kernel in Thumb-2 mode"
1687 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Catalin Marinas16c79652009-07-24 12:33:02 +01001688 select AEABI
1689 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001690 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001691 help
1692 By enabling this option, the kernel will be compiled in
1693 Thumb-2 mode. A compiler/assembler that understand the unified
1694 ARM-Thumb syntax is needed.
1695
1696 If unsure, say N.
1697
Dave Martin6f685c52011-03-03 11:41:12 +01001698config THUMB2_AVOID_R_ARM_THM_JUMP11
1699 bool "Work around buggy Thumb-2 short branch relocations in gas"
1700 depends on THUMB2_KERNEL && MODULES
1701 default y
1702 help
1703 Various binutils versions can resolve Thumb-2 branches to
1704 locally-defined, preemptible global symbols as short-range "b.n"
1705 branch instructions.
1706
1707 This is a problem, because there's no guarantee the final
1708 destination of the symbol, or any candidate locations for a
1709 trampoline, are within range of the branch. For this reason, the
1710 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1711 relocation in modules at all, and it makes little sense to add
1712 support.
1713
1714 The symptom is that the kernel fails with an "unsupported
1715 relocation" error when loading some modules.
1716
1717 Until fixed tools are available, passing
1718 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1719 code which hits this problem, at the cost of a bit of extra runtime
1720 stack usage in some cases.
1721
1722 The problem is described in more detail at:
1723 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1724
1725 Only Thumb-2 kernels are affected.
1726
1727 Unless you are sure your tools don't have this problem, say Y.
1728
Catalin Marinas0becb082009-07-24 12:32:53 +01001729config ARM_ASM_UNIFIED
1730 bool
1731
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001732config AEABI
1733 bool "Use the ARM EABI to compile the kernel"
1734 help
1735 This option allows for the kernel to be compiled using the latest
1736 ARM ABI (aka EABI). This is only useful if you are using a user
1737 space environment that is also compiled with EABI.
1738
1739 Since there are major incompatibilities between the legacy ABI and
1740 EABI, especially with regard to structure member alignment, this
1741 option also changes the kernel syscall calling convention to
1742 disambiguate both ABIs and allow for backward compatibility support
1743 (selected with CONFIG_OABI_COMPAT).
1744
1745 To use this you need GCC version 4.0.0 or later.
1746
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001747config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001748 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001749 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001750 default y
1751 help
1752 This option preserves the old syscall interface along with the
1753 new (ARM EABI) one. It also provides a compatibility layer to
1754 intercept syscalls that have structure arguments which layout
1755 in memory differs between the legacy ABI and the new ARM EABI
1756 (only for non "thumb" binaries). This option adds a tiny
1757 overhead to all syscalls and produces a slightly larger kernel.
1758 If you know you'll be using only pure EABI user space then you
1759 can say N here. If this option is not selected and you attempt
1760 to execute a legacy ABI binary then the result will be
1761 UNPREDICTABLE (in fact it can be predicted that it won't work
1762 at all). If in doubt say Y.
1763
Mel Gormaneb335752009-05-13 17:34:48 +01001764config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001765 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001766
Russell King05944d72006-11-30 20:43:51 +00001767config ARCH_SPARSEMEM_ENABLE
1768 bool
1769
Russell King07a2f732008-10-01 21:39:58 +01001770config ARCH_SPARSEMEM_DEFAULT
1771 def_bool ARCH_SPARSEMEM_ENABLE
1772
Russell King05944d72006-11-30 20:43:51 +00001773config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001774 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001775
Will Deacon7b7bf492011-05-19 13:21:14 +01001776config HAVE_ARCH_PFN_VALID
1777 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1778
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001779config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001780 bool "High Memory Support"
1781 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001782 help
1783 The address space of ARM processors is only 4 Gigabytes large
1784 and it has to accommodate user address space, kernel address
1785 space as well as some memory mapped IO. That means that, if you
1786 have a large amount of physical memory and/or IO, not all of the
1787 memory can be "permanently mapped" by the kernel. The physical
1788 memory that is not permanently mapped is called "high memory".
1789
1790 Depending on the selected kernel/user memory split, minimum
1791 vmalloc space and actual amount of RAM, you may not need this
1792 option which should result in a slightly faster kernel.
1793
1794 If unsure, say n.
1795
Russell King65cec8e2009-08-17 20:02:06 +01001796config HIGHPTE
1797 bool "Allocate 2nd-level pagetables from highmem"
1798 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001799
Jamie Iles1b8873a2010-02-02 20:25:44 +01001800config HW_PERF_EVENTS
1801 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001802 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001803 default y
1804 help
1805 Enable hardware performance counter support for perf events. If
1806 disabled, perf events will use software events only.
1807
Dave Hansen3f22ab22005-06-23 00:07:43 -07001808source "mm/Kconfig"
1809
Magnus Dammc1b2d972010-07-05 10:00:11 +01001810config FORCE_MAX_ZONEORDER
1811 int "Maximum zone order" if ARCH_SHMOBILE
1812 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001813 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001814 default "9" if SA1111
1815 default "11"
1816 help
1817 The kernel memory allocator divides physically contiguous memory
1818 blocks into "zones", where each zone is a power of two number of
1819 pages. This option selects the largest power of two that the kernel
1820 keeps in the memory allocator. If you need to allocate very large
1821 blocks of physically contiguous memory, then you may need to
1822 increase this value.
1823
1824 This config option is actually maximum order plus one. For example,
1825 a value of 11 means that the largest free memory block is 2^10 pages.
1826
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827config ALIGNMENT_TRAP
1828 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001829 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001830 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001831 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001833 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1835 address divisible by 4. On 32-bit ARM processors, these non-aligned
1836 fetch/store instructions will be emulated in software if you say
1837 here, which has a severe performance impact. This is necessary for
1838 correct operation of some network protocols. With an IP-only
1839 configuration it is safe to say N, otherwise say Y.
1840
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001841config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001842 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1843 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001844 default y if CPU_FEROCEON
1845 help
1846 Implement faster copy_to_user and clear_user methods for CPU
1847 cores where a 8-word STM instruction give significantly higher
1848 memory write throughput than a sequence of individual 32bit stores.
1849
1850 A possible side effect is a slight increase in scheduling latency
1851 between threads sharing the same address space if they invoke
1852 such copy operations with large buffers.
1853
1854 However, if the CPU data cache is using a write-allocate mode,
1855 this option is unlikely to provide any performance gain.
1856
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001857config SECCOMP
1858 bool
1859 prompt "Enable seccomp to safely compute untrusted bytecode"
1860 ---help---
1861 This kernel feature is useful for number crunching applications
1862 that may need to compute untrusted bytecode during their
1863 execution. By using pipes or other transports made available to
1864 the process as file descriptors supporting the read/write
1865 syscalls, it's possible to isolate those applications in
1866 their own address space using seccomp. Once seccomp is
1867 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1868 and the task is only allowed to execute a few safe syscalls
1869 defined by each seccomp mode.
1870
Nicolas Pitrec743f382010-05-24 23:55:42 -04001871config CC_STACKPROTECTOR
1872 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1873 help
1874 This option turns on the -fstack-protector GCC feature. This
1875 feature puts, at the beginning of functions, a canary value on
1876 the stack just before the return address, and validates
1877 the value just before actually returning. Stack based buffer
1878 overflows (that need to overwrite this return address) now also
1879 overwrite the canary, which gets detected and the attack is then
1880 neutralized via a kernel panic.
1881 This feature requires gcc version 4.2 or above.
1882
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001883config XEN_DOM0
1884 def_bool y
1885 depends on XEN
1886
1887config XEN
1888 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001889 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001890 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001891 depends on !GENERIC_ATOMIC64
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001892 help
1893 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1894
Linus Torvalds1da177e2005-04-16 15:20:36 -07001895endmenu
1896
1897menu "Boot options"
1898
Grant Likely9eb8f672011-04-28 14:27:20 -06001899config USE_OF
1900 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001901 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001902 select OF
1903 select OF_EARLY_FLATTREE
1904 help
1905 Include support for flattened device tree machine descriptions.
1906
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001907config ATAGS
1908 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1909 default y
1910 help
1911 This is the traditional way of passing data to the kernel at boot
1912 time. If you are solely relying on the flattened device tree (or
1913 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1914 to remove ATAGS support from your kernel binary. If unsure,
1915 leave this to y.
1916
1917config DEPRECATED_PARAM_STRUCT
1918 bool "Provide old way to pass kernel parameters"
1919 depends on ATAGS
1920 help
1921 This was deprecated in 2001 and announced to live on for 5 years.
1922 Some old boot loaders still use this way.
1923
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924# Compressed boot loader in ROM. Yes, we really want to ask about
1925# TEXT and BSS so we preserve their values in the config files.
1926config ZBOOT_ROM_TEXT
1927 hex "Compressed ROM boot loader base address"
1928 default "0"
1929 help
1930 The physical address at which the ROM-able zImage is to be
1931 placed in the target. Platforms which normally make use of
1932 ROM-able zImage formats normally set this to a suitable
1933 value in their defconfig file.
1934
1935 If ZBOOT_ROM is not enabled, this has no effect.
1936
1937config ZBOOT_ROM_BSS
1938 hex "Compressed ROM boot loader BSS address"
1939 default "0"
1940 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001941 The base address of an area of read/write memory in the target
1942 for the ROM-able zImage which must be available while the
1943 decompressor is running. It must be large enough to hold the
1944 entire decompressed kernel plus an additional 128 KiB.
1945 Platforms which normally make use of ROM-able zImage formats
1946 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001947
1948 If ZBOOT_ROM is not enabled, this has no effect.
1949
1950config ZBOOT_ROM
1951 bool "Compressed boot loader in ROM/flash"
1952 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1953 help
1954 Say Y here if you intend to execute your compressed kernel image
1955 (zImage) directly from ROM or flash. If unsure, say N.
1956
Simon Horman090ab3f2011-04-26 06:29:53 +01001957choice
1958 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001959 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001960 default ZBOOT_ROM_NONE
1961 help
1962 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001963 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001964 kernel image to an MMC or SD card and boot the kernel straight
1965 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001966 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001967 rest the kernel image to RAM.
1968
1969config ZBOOT_ROM_NONE
1970 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1971 help
1972 Do not load image from SD or MMC
1973
Simon Hormanf45b1142011-01-11 04:01:08 +01001974config ZBOOT_ROM_MMCIF
1975 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001976 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001977 Load image from MMCIF hardware block.
1978
1979config ZBOOT_ROM_SH_MOBILE_SDHI
1980 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1981 help
1982 Load image from SDHI hardware block
1983
1984endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001985
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001986config ARM_APPENDED_DTB
1987 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001988 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001989 help
1990 With this option, the boot code will look for a device tree binary
1991 (DTB) appended to zImage
1992 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1993
1994 This is meant as a backward compatibility convenience for those
1995 systems with a bootloader that can't be upgraded to accommodate
1996 the documented boot protocol using a device tree.
1997
1998 Beware that there is very little in terms of protection against
1999 this option being confused by leftover garbage in memory that might
2000 look like a DTB header after a reboot if no actual DTB is appended
2001 to zImage. Do not leave this option active in a production kernel
2002 if you don't intend to always append a DTB. Proper passing of the
2003 location into r2 of a bootloader provided DTB is always preferable
2004 to this option.
2005
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002006config ARM_ATAG_DTB_COMPAT
2007 bool "Supplement the appended DTB with traditional ATAG information"
2008 depends on ARM_APPENDED_DTB
2009 help
2010 Some old bootloaders can't be updated to a DTB capable one, yet
2011 they provide ATAGs with memory configuration, the ramdisk address,
2012 the kernel cmdline string, etc. Such information is dynamically
2013 provided by the bootloader and can't always be stored in a static
2014 DTB. To allow a device tree enabled kernel to be used with such
2015 bootloaders, this option allows zImage to extract the information
2016 from the ATAG list and store it at run time into the appended DTB.
2017
Genoud Richardd0f34a112012-06-26 16:37:59 +01002018choice
2019 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2020 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2021
2022config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2023 bool "Use bootloader kernel arguments if available"
2024 help
2025 Uses the command-line options passed by the boot loader instead of
2026 the device tree bootargs property. If the boot loader doesn't provide
2027 any, the device tree bootargs property will be used.
2028
2029config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2030 bool "Extend with bootloader kernel arguments"
2031 help
2032 The command-line arguments provided by the boot loader will be
2033 appended to the the device tree bootargs property.
2034
2035endchoice
2036
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037config CMDLINE
2038 string "Default kernel command string"
2039 default ""
2040 help
2041 On some architectures (EBSA110 and CATS), there is currently no way
2042 for the boot loader to pass arguments to the kernel. For these
2043 architectures, you should supply some command-line options at build
2044 time by entering them here. As a minimum, you should specify the
2045 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2046
Victor Boivie4394c122011-05-04 17:07:55 +01002047choice
2048 prompt "Kernel command line type" if CMDLINE != ""
2049 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002050 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002051
2052config CMDLINE_FROM_BOOTLOADER
2053 bool "Use bootloader kernel arguments if available"
2054 help
2055 Uses the command-line options passed by the boot loader. If
2056 the boot loader doesn't provide any, the default kernel command
2057 string provided in CMDLINE will be used.
2058
2059config CMDLINE_EXTEND
2060 bool "Extend bootloader kernel arguments"
2061 help
2062 The command-line arguments provided by the boot loader will be
2063 appended to the default kernel command string.
2064
Alexander Holler92d20402010-02-16 19:04:53 +01002065config CMDLINE_FORCE
2066 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002067 help
2068 Always use the default kernel command string, even if the boot
2069 loader passes other arguments to the kernel.
2070 This is useful if you cannot or don't want to change the
2071 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002072endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002073
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074config XIP_KERNEL
2075 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002076 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077 help
2078 Execute-In-Place allows the kernel to run from non-volatile storage
2079 directly addressable by the CPU, such as NOR flash. This saves RAM
2080 space since the text section of the kernel is not loaded from flash
2081 to RAM. Read-write sections, such as the data section and stack,
2082 are still copied to RAM. The XIP kernel is not compressed since
2083 it has to run directly from flash, so it will take more space to
2084 store it. The flash address used to link the kernel object files,
2085 and for storing it, is configuration dependent. Therefore, if you
2086 say Y here, you must know the proper physical address where to
2087 store the kernel image depending on your own flash memory usage.
2088
2089 Also note that the make target becomes "make xipImage" rather than
2090 "make zImage" or "make Image". The final kernel binary to put in
2091 ROM memory will be arch/arm/boot/xipImage.
2092
2093 If unsure, say N.
2094
2095config XIP_PHYS_ADDR
2096 hex "XIP Kernel Physical Location"
2097 depends on XIP_KERNEL
2098 default "0x00080000"
2099 help
2100 This is the physical address in your flash memory the kernel will
2101 be linked for and stored to. This address is dependent on your
2102 own flash usage.
2103
Richard Purdiec587e4a2007-02-06 21:29:00 +01002104config KEXEC
2105 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002106 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002107 help
2108 kexec is a system call that implements the ability to shutdown your
2109 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002110 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002111 you can start any kernel with it, not just Linux.
2112
2113 It is an ongoing process to be certain the hardware in a machine
2114 is properly shutdown, so do not be surprised if this code does not
2115 initially work for you. It may help to enable device hotplugging
2116 support.
2117
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002118config ATAGS_PROC
2119 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002120 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002121 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002122 help
2123 Should the atags used to boot the kernel be exported in an "atags"
2124 file in procfs. Useful with kexec.
2125
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002126config CRASH_DUMP
2127 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002128 help
2129 Generate crash dump after being started by kexec. This should
2130 be normally only set in special crash dump kernels which are
2131 loaded in the main kernel with kexec-tools into a specially
2132 reserved region and then later executed after a crash by
2133 kdump/kexec. The crash dump kernel must be compiled to a
2134 memory address not used by the main kernel
2135
2136 For more details see Documentation/kdump/kdump.txt
2137
Eric Miaoe69edc792010-07-05 15:56:50 +02002138config AUTO_ZRELADDR
2139 bool "Auto calculation of the decompressed kernel image address"
2140 depends on !ZBOOT_ROM && !ARCH_U300
2141 help
2142 ZRELADDR is the physical address where the decompressed kernel
2143 image will be placed. If AUTO_ZRELADDR is selected, the address
2144 will be determined at run-time by masking the current IP with
2145 0xf8000000. This assumes the zImage being placed in the first 128MB
2146 from start of memory.
2147
Linus Torvalds1da177e2005-04-16 15:20:36 -07002148endmenu
2149
Russell Kingac9d7ef2008-08-18 17:26:00 +01002150menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151
Ben Dooks89c52ed2009-07-30 23:23:24 +01002152if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153
2154source "drivers/cpufreq/Kconfig"
2155
Yong Shen64f102b2010-10-21 21:18:59 +08002156config CPU_FREQ_IMX
2157 tristate "CPUfreq driver for i.MX CPUs"
2158 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002159 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002160 help
2161 This enables the CPUfreq driver for i.MX CPUs.
2162
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163config CPU_FREQ_SA1100
2164 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165
2166config CPU_FREQ_SA1110
2167 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168
2169config CPU_FREQ_INTEGRATOR
2170 tristate "CPUfreq driver for ARM Integrator CPUs"
2171 depends on ARCH_INTEGRATOR && CPU_FREQ
2172 default y
2173 help
2174 This enables the CPUfreq driver for ARM Integrator CPUs.
2175
2176 For details, take a look at <file:Documentation/cpu-freq>.
2177
2178 If in doubt, say Y.
2179
Russell King9e2697f2007-12-14 13:30:14 +00002180config CPU_FREQ_PXA
2181 bool
2182 depends on CPU_FREQ && ARCH_PXA && PXA25x
2183 default y
2184 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002185 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002186
Ben Dooks9d56c022009-07-30 23:23:25 +01002187config CPU_FREQ_S3C
2188 bool
2189 help
2190 Internal configuration node for common cpufreq on Samsung SoC
2191
2192config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002193 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002194 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002195 select CPU_FREQ_S3C
2196 help
2197 This enables the CPUfreq driver for the Samsung S3C24XX family
2198 of CPUs.
2199
2200 For details, take a look at <file:Documentation/cpu-freq>.
2201
2202 If in doubt, say N.
2203
2204config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002205 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002206 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002207 help
2208 Compile in support for changing the PLL frequency from the
2209 S3C24XX series CPUfreq driver. The PLL takes time to settle
2210 after a frequency change, so by default it is not enabled.
2211
2212 This also means that the PLL tables for the selected CPU(s) will
2213 be built which may increase the size of the kernel image.
2214
2215config CPU_FREQ_S3C24XX_DEBUG
2216 bool "Debug CPUfreq Samsung driver core"
2217 depends on CPU_FREQ_S3C24XX
2218 help
2219 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2220
2221config CPU_FREQ_S3C24XX_IODEBUG
2222 bool "Debug CPUfreq Samsung driver IO timing"
2223 depends on CPU_FREQ_S3C24XX
2224 help
2225 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2226
Ben Dookse6d197a2009-07-30 23:23:42 +01002227config CPU_FREQ_S3C24XX_DEBUGFS
2228 bool "Export debugfs for CPUFreq"
2229 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2230 help
2231 Export status information via debugfs.
2232
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233endif
2234
Russell Kingac9d7ef2008-08-18 17:26:00 +01002235source "drivers/cpuidle/Kconfig"
2236
2237endmenu
2238
Linus Torvalds1da177e2005-04-16 15:20:36 -07002239menu "Floating point emulation"
2240
2241comment "At least one emulation must be selected"
2242
2243config FPE_NWFPE
2244 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002245 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002246 ---help---
2247 Say Y to include the NWFPE floating point emulator in the kernel.
2248 This is necessary to run most binaries. Linux does not currently
2249 support floating point hardware so you need to say Y here even if
2250 your machine has an FPA or floating point co-processor podule.
2251
2252 You may say N here if you are going to load the Acorn FPEmulator
2253 early in the bootup.
2254
2255config FPE_NWFPE_XP
2256 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002257 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002258 help
2259 Say Y to include 80-bit support in the kernel floating-point
2260 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2261 Note that gcc does not generate 80-bit operations by default,
2262 so in most cases this option only enlarges the size of the
2263 floating point emulator without any good reason.
2264
2265 You almost surely want to say N here.
2266
2267config FPE_FASTFPE
2268 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002269 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270 ---help---
2271 Say Y here to include the FAST floating point emulator in the kernel.
2272 This is an experimental much faster emulator which now also has full
2273 precision for the mantissa. It does not support any exceptions.
2274 It is very simple, and approximately 3-6 times faster than NWFPE.
2275
2276 It should be sufficient for most programs. It may be not suitable
2277 for scientific calculations, but you have to check this for yourself.
2278 If you do not feel you need a faster FP emulation you should better
2279 choose NWFPE.
2280
2281config VFP
2282 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002283 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284 help
2285 Say Y to include VFP support code in the kernel. This is needed
2286 if your hardware includes a VFP unit.
2287
2288 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2289 release notes and additional status information.
2290
2291 Say N if your target does not have VFP hardware.
2292
Catalin Marinas25ebee02007-09-25 15:22:24 +01002293config VFPv3
2294 bool
2295 depends on VFP
2296 default y if CPU_V7
2297
Catalin Marinasb5872db2008-01-10 19:16:17 +01002298config NEON
2299 bool "Advanced SIMD (NEON) Extension support"
2300 depends on VFPv3 && CPU_V7
2301 help
2302 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2303 Extension.
2304
Linus Torvalds1da177e2005-04-16 15:20:36 -07002305endmenu
2306
2307menu "Userspace binary formats"
2308
2309source "fs/Kconfig.binfmt"
2310
2311config ARTHUR
2312 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002313 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002314 help
2315 Say Y here to include the kernel code necessary if you want to run
2316 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2317 experimental; if this sounds frightening, say N and sleep in peace.
2318 You can also say M here to compile this support as a module (which
2319 will be called arthur).
2320
2321endmenu
2322
2323menu "Power management options"
2324
Russell Kingeceab4a2005-11-15 11:31:41 +00002325source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002326
Johannes Bergf4cb5702007-12-08 02:14:00 +01002327config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002328 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002329 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002330 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002331 def_bool y
2332
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002333config ARM_CPU_SUSPEND
2334 def_bool PM_SLEEP
2335
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336endmenu
2337
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002338source "net/Kconfig"
2339
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002340source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341
2342source "fs/Kconfig"
2343
Linus Torvalds1da177e2005-04-16 15:20:36 -07002344source "arch/arm/Kconfig.debug"
2345
2346source "security/Kconfig"
2347
2348source "crypto/Kconfig"
2349
2350source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002351
2352source "arch/arm/kvm/Kconfig"