blob: 9462dd931b33f15da419f33601bbdf315e801285 [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
Thomas Petazzoni7d554902013-03-21 17:59:17 +0100565 select MVEBU_MBUS
Saeed Bisharaedabd382009-08-06 15:12:43 +0300566 help
567 Support for the Marvell Dove SoC 88AP510
568
Saeed Bishara651c74c2008-06-22 22:45:06 +0200569config ARCH_KIRKWOOD
570 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700571 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100572 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200573 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700575 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100576 select PINCTRL
577 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200578 select PLAT_ORION_LEGACY
Thomas Petazzoni5cc06732013-03-21 17:59:16 +0100579 select MVEBU_MBUS
Saeed Bishara651c74c2008-06-22 22:45:06 +0200580 help
581 Support for the following Marvell Kirkwood series SoCs:
582 88F6180, 88F6192 and 88F6281.
583
Russell King788c9702009-04-26 14:21:59 +0100584config ARCH_MV78XX0
585 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700586 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100587 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100588 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100589 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200590 select PLAT_ORION_LEGACY
Thomas Petazzoni95b80e02013-03-21 17:59:19 +0100591 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100592 help
593 Support for the following Marvell MV78xx0 series SoCs:
594 MV781x0, MV782x0.
595
596config ARCH_ORION5X
597 bool "Marvell Orion"
598 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700599 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100600 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100601 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100602 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200603 select PLAT_ORION_LEGACY
Thomas Petazzoni5d1190e2013-03-21 17:59:18 +0100604 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100605 help
606 Support for the following Marvell Orion 5x series SoCs:
607 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
608 Orion-2 (5281), Orion-1-90 (6183).
609
610config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500611 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100612 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100613 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100614 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100615 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100616 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800617 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800618 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100619 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800620 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100621 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400622 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100623 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500624 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100625
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100626config ARCH_KS8695
627 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100628 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200629 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100630 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200631 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100632 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100633 help
634 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
635 System-on-Chip devices.
636
Russell King788c9702009-04-26 14:21:59 +0100637config ARCH_W90X900
638 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100639 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100640 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100641 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100642 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100643 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200644 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100645 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
646 At present, the w90x900 has been renamed nuc900, regarding
647 the ARM series product line, you can login the following
648 link address to know more.
649
650 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
651 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400652
Russell King93e22562012-10-12 14:20:52 +0100653config ARCH_LPC32XX
654 bool "NXP LPC32XX"
655 select ARCH_REQUIRE_GPIOLIB
656 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000657 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100658 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100659 select CPU_ARM926T
660 select GENERIC_CLOCKEVENTS
661 select HAVE_IDE
662 select HAVE_PWM
663 select USB_ARCH_HAS_OHCI
664 select USE_OF
665 help
666 Support for the NXP LPC32XX family of processors
667
wanzongshuna62e9032009-12-31 15:06:05 +0100668config ARCH_TEGRA
669 bool "NVIDIA Tegra"
Russell Kingb1b3f492012-10-06 17:12:25 +0100670 select ARCH_HAS_CPUFREQ
Stephen Warren23c8c4b2013-02-07 14:43:23 -0700671 select ARCH_REQUIRE_GPIOLIB
Erik Gillingc5f80062010-01-21 16:53:02 -0800672 select CLKDEV_LOOKUP
673 select CLKSRC_MMIO
Stephen Warren1711b1e2012-10-23 11:52:53 -0600674 select CLKSRC_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100675 select COMMON_CLK
Erik Gillingc5f80062010-01-21 16:53:02 -0800676 select GENERIC_CLOCKEVENTS
Erik Gillingc5f80062010-01-21 16:53:02 -0800677 select HAVE_CLK
Dave Martin3b556582011-12-07 15:38:04 +0000678 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000679 select MIGHT_HAVE_CACHE_L2X0
Stephen Warrenc5a4d6b2012-09-19 14:19:02 -0600680 select SPARSE_IRQ
Stephen Warren2c95b7e2012-05-21 15:07:19 -0600681 select USE_OF
Erik Gillingc5f80062010-01-21 16:53:02 -0800682 help
683 This enables support for NVIDIA Tegra based systems (Tegra APX,
684 Tegra 6xx and Tegra 2 series).
685
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700687 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100688 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100689 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100690 select ARCH_MTD_XIP
691 select ARCH_REQUIRE_GPIOLIB
692 select ARM_CPU_SUSPEND if PM
693 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100694 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100695 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100696 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800697 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100698 select HAVE_IDE
699 select MULTI_IRQ_HANDLER
700 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800701 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800702 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000703 help
eric miao2c8086a2007-09-11 19:13:17 -0700704 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705
Russell King788c9702009-04-26 14:21:59 +0100706config ARCH_MSM
707 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700708 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800709 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100710 select GENERIC_CLOCKEVENTS
711 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800712 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800713 Support for Qualcomm MSM/QSD based systems. This runs on the
714 apps processor of the MSM/QSD and depends on a shared memory
715 interface to the modem processor which runs the baseband
716 stack and controls some vital subsystems
717 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800718
Magnus Dammc793c1b2010-02-05 11:14:49 +0000719config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900720 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900721 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100722 select GENERIC_CLOCKEVENTS
723 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900724 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000725 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000726 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000727 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400728 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100729 select NO_IOPORT
Laurent Pincharta47029c2012-12-15 23:50:56 +0100730 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select PM_GENERIC_DOMAINS if PM
732 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000733 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900734 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000735
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736config ARCH_RPC
737 bool "RiscPC"
738 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100739 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100740 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000741 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100742 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200743 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select HAVE_PATA_PLATFORM
745 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600746 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400747 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100748 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100749 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750 help
751 On the Acorn Risc-PC, Linux can support the internal IDE disk and
752 CD-ROM interface, serial and parallel port, and the floppy drive.
753
754config ARCH_SA1100
755 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100756 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700758 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100759 select ARCH_SPARSEMEM_ENABLE
760 select CLKDEV_LOOKUP
761 select CLKSRC_MMIO
762 select CPU_FREQ
763 select CPU_SA1100
764 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200765 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500767 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400768 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100769 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000770 help
771 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900773config ARCH_S3C24XX
774 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100775 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000776 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100777 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100778 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900779 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900780 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100781 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500782 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600783 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900785 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
786 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
787 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
788 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900789
Ben Dooksa08ab632008-10-21 14:06:39 +0100790config ARCH_S3C64XX
791 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100792 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900793 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100794 select ARCH_USES_GETTIMEOFFSET
795 select ARM_VIC
796 select CLKDEV_LOOKUP
797 select CPU_V6
798 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900799 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900800 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500802 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select NO_IOPORT
804 select PLAT_SAMSUNG
805 select S3C_DEV_NAND
806 select S3C_GPIO_TRACK
807 select SAMSUNG_CLKSRC
808 select SAMSUNG_GPIOLIB_4BIT
809 select SAMSUNG_IRQ_VIC_TIMER
810 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100811 help
812 Samsung S3C64XX series based systems
813
Kukjin Kim49b7a492010-09-07 15:47:18 +0900814config ARCH_S5P64X0
815 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900816 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900817 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900819 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900821 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100822 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900823 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500824 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900825 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900826 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
827 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900828
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200829config ARCH_S5PC100
830 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100831 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900832 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900833 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900835 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900836 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100837 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500838 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900839 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200840 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900841
Kukjin Kim170f4e42010-02-24 16:40:44 +0900842config ARCH_S5PV210
843 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100844 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900845 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100846 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900847 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900848 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100849 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900850 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900852 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900853 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100854 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500855 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400856 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900857 help
858 Samsung S5PV210/S5PC110 series based systems
859
Kukjin Kim83014572011-11-06 13:54:56 +0900860config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100861 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100862 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900863 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select ARCH_SPARSEMEM_ENABLE
865 select CLKDEV_LOOKUP
866 select CPU_V7
867 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900868 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900869 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900870 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100871 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500872 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400873 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900874 help
Kukjin Kim83014572011-11-06 13:54:56 +0900875 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877config ARCH_SHARK
878 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100879 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000880 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100881 select ISA
882 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400883 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100884 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100885 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100886 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000887 help
888 Support for the StrongARM based Digital DNARD machine, also known
889 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890
Linus Walleijd98aac72009-04-27 10:21:46 +0100891config ARCH_U300
892 bool "ST-Ericsson U300 Series"
893 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100894 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100895 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200896 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100897 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100898 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100899 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200900 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100901 select CPU_ARM926T
902 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100903 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200904 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100905 help
906 Support for ST-Ericsson U300 series mobile platforms.
907
Russell Kingccf50e22010-03-15 19:03:06 +0000908config ARCH_U8500
909 bool "ST-Ericsson U8500 Series"
Arnd Bergmann67ae14f2012-02-25 12:48:49 -0700910 depends on MMU
Martin Persson7c1a70e2010-12-08 15:13:42 +0100911 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100912 select ARCH_REQUIRE_GPIOLIB
913 select ARM_AMBA
914 select CLKDEV_LOOKUP
915 select CPU_V7
916 select GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +0000917 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000918 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200919 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000920 help
921 Support for ST-Ericsson's Ux500 architecture
922
923config ARCH_NOMADIK
924 bool "STMicroelectronics Nomadik"
Russell Kingb1b3f492012-10-06 17:12:25 +0100925 select ARCH_REQUIRE_GPIOLIB
Russell Kingccf50e22010-03-15 19:03:06 +0000926 select ARM_AMBA
927 select ARM_VIC
Linus Walleij5f66d482013-01-06 02:25:20 +0100928 select CLKSRC_NOMADIK_MTU
Linus Walleij4a31bd22012-01-11 13:52:34 +0100929 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100930 select CPU_ARM926T
Russell Kingccf50e22010-03-15 19:03:06 +0000931 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100932 select MIGHT_HAVE_CACHE_L2X0
Linus Walleijf0159412013-02-01 09:52:05 +0100933 select USE_OF
Arnd Bergmann0fa7be42012-05-15 11:24:34 +0000934 select PINCTRL
Linus Walleij2601ccf2012-08-10 00:43:40 +0200935 select PINCTRL_STN8815
Linus Walleijc3b9d1d2012-10-18 11:08:05 +0200936 select SPARSE_IRQ
Russell Kingccf50e22010-03-15 19:03:06 +0000937 help
938 Support for the Nomadik platform by ST-Ericsson
939
Russell King93e22562012-10-12 14:20:52 +0100940config PLAT_SPEAR
941 bool "ST SPEAr"
Deepak Sikri42099322012-11-27 14:05:26 +0100942 select ARCH_HAS_CPUFREQ
Russell King93e22562012-10-12 14:20:52 +0100943 select ARCH_REQUIRE_GPIOLIB
944 select ARM_AMBA
945 select CLKDEV_LOOKUP
946 select CLKSRC_MMIO
947 select COMMON_CLK
948 select GENERIC_CLOCKEVENTS
949 select HAVE_CLK
950 help
951 Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
952
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100953config ARCH_DAVINCI
954 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100955 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700956 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100957 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700958 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100959 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100960 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100961 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500962 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530963 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100964 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100965 help
966 Support for TI's DaVinci platform.
967
Tony Lindgrena0694862013-01-11 11:24:20 -0800968config ARCH_OMAP1
969 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600970 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100971 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100972 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800973 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100974 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200975 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100976 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100977 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800978 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100979 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800980 select HAVE_IDE
981 select IRQ_DOMAIN
982 select NEED_MACH_IO_H if PCCARD
983 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100984 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800985 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800986
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987endchoice
988
Rob Herring387798b2012-09-06 13:41:12 -0500989menu "Multiple platform selection"
990 depends on ARCH_MULTIPLATFORM
991
992comment "CPU Core family selection"
993
994config ARCH_MULTI_V4
995 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500996 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100997 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500998
999config ARCH_MULTI_V4T
1000 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001001 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001002 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -05001003
1004config ARCH_MULTI_V5
1005 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -05001006 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001007 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -05001008
1009config ARCH_MULTI_V4_V5
1010 bool
1011
1012config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -08001013 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -05001014 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001015 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -05001016
1017config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -08001018 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -05001019 default y
1020 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +01001021 select ARCH_VEXPRESS
1022 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -05001023
1024config ARCH_MULTI_V6_V7
1025 bool
1026
1027config ARCH_MULTI_CPU_AUTO
1028 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
1029 select ARCH_MULTI_V5
1030
1031endmenu
1032
Russell Kingccf50e22010-03-15 19:03:06 +00001033#
1034# This is sorted alphabetically by mach-* pathname. However, plat-*
1035# Kconfigs may be included either alphabetically (according to the
1036# plat- suffix) or along side the corresponding mach-* source.
1037#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +02001038source "arch/arm/mach-mvebu/Kconfig"
1039
Russell King95b8f202010-01-14 11:43:54 +00001040source "arch/arm/mach-at91/Kconfig"
1041
Christian Daudt8ac49e02012-11-19 09:46:10 -08001042source "arch/arm/mach-bcm/Kconfig"
1043
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044source "arch/arm/mach-clps711x/Kconfig"
1045
Anton Vorontsovd94f9442010-03-25 17:12:41 +03001046source "arch/arm/mach-cns3xxx/Kconfig"
1047
Russell King95b8f202010-01-14 11:43:54 +00001048source "arch/arm/mach-davinci/Kconfig"
1049
1050source "arch/arm/mach-dove/Kconfig"
1051
Lennert Buytenheke7736d42006-03-20 17:10:13 +00001052source "arch/arm/mach-ep93xx/Kconfig"
1053
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054source "arch/arm/mach-footbridge/Kconfig"
1055
Paulius Zaleckas59d3a192009-03-26 10:06:08 +02001056source "arch/arm/mach-gemini/Kconfig"
1057
Russell King95b8f202010-01-14 11:43:54 +00001058source "arch/arm/mach-h720x/Kconfig"
1059
Rob Herring387798b2012-09-06 13:41:12 -05001060source "arch/arm/mach-highbank/Kconfig"
1061
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062source "arch/arm/mach-integrator/Kconfig"
1063
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +01001064source "arch/arm/mach-iop32x/Kconfig"
1065
1066source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067
Dan Williams285f5fa2006-12-07 02:59:39 +01001068source "arch/arm/mach-iop13xx/Kconfig"
1069
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070source "arch/arm/mach-ixp4xx/Kconfig"
1071
Russell King95b8f202010-01-14 11:43:54 +00001072source "arch/arm/mach-kirkwood/Kconfig"
1073
1074source "arch/arm/mach-ks8695/Kconfig"
1075
Russell King95b8f202010-01-14 11:43:54 +00001076source "arch/arm/mach-msm/Kconfig"
1077
Stanislav Samsonov794d15b2008-06-22 22:45:10 +02001078source "arch/arm/mach-mv78xx0/Kconfig"
1079
Shawn Guo3995eb82012-09-13 19:48:07 +08001080source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
Shawn Guo1d3f33d2010-12-13 20:55:03 +08001082source "arch/arm/mach-mxs/Kconfig"
1083
Russell King95b8f202010-01-14 11:43:54 +00001084source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +08001085
Russell King95b8f202010-01-14 11:43:54 +00001086source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +00001087
Tony Lindgrend48af152005-07-10 19:58:17 +01001088source "arch/arm/plat-omap/Kconfig"
1089
1090source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091
Tony Lindgren1dbae812005-11-10 14:26:51 +00001092source "arch/arm/mach-omap2/Kconfig"
1093
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04001094source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -04001095
Rob Herring387798b2012-09-06 13:41:12 -05001096source "arch/arm/mach-picoxcell/Kconfig"
1097
Russell King95b8f202010-01-14 11:43:54 +00001098source "arch/arm/mach-pxa/Kconfig"
1099source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100
Russell King95b8f202010-01-14 11:43:54 +00001101source "arch/arm/mach-mmp/Kconfig"
1102
1103source "arch/arm/mach-realview/Kconfig"
1104
1105source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001106
Ben Dookscf383672009-11-10 00:14:58 +00001107source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001108
Rob Herring387798b2012-09-06 13:41:12 -05001109source "arch/arm/mach-socfpga/Kconfig"
1110
viresh kumarcee37e52010-04-01 12:31:05 +01001111source "arch/arm/plat-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001112
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001113source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114
Ben Dooksa08ab632008-10-21 14:06:39 +01001115if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001116source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001117endif
1118
Kukjin Kim49b7a492010-09-07 15:47:18 +09001119source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001120
Byungho Min5a7652f2009-06-23 21:39:42 +09001121source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001122
Kukjin Kim170f4e42010-02-24 16:40:44 +09001123source "arch/arm/mach-s5pv210/Kconfig"
1124
Kukjin Kim83014572011-11-06 13:54:56 +09001125source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001126
Russell King882d01f2010-03-02 23:40:15 +00001127source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128
Maxime Ripard3b526342012-11-08 12:40:16 +01001129source "arch/arm/mach-sunxi/Kconfig"
1130
Barry Song156a0992012-08-23 13:41:58 +08001131source "arch/arm/mach-prima2/Kconfig"
1132
Erik Gillingc5f80062010-01-21 16:53:02 -08001133source "arch/arm/mach-tegra/Kconfig"
1134
Russell King95b8f202010-01-14 11:43:54 +00001135source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001136
Russell King95b8f202010-01-14 11:43:54 +00001137source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001138
1139source "arch/arm/mach-versatile/Kconfig"
1140
Russell Kingceade892010-02-11 21:44:53 +00001141source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001142source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001143
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001144source "arch/arm/mach-virt/Kconfig"
1145
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001146source "arch/arm/mach-vt8500/Kconfig"
1147
wanzongshun7ec80dd2008-12-03 03:55:38 +01001148source "arch/arm/mach-w90x900/Kconfig"
1149
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001150source "arch/arm/mach-zynq/Kconfig"
1151
Linus Torvalds1da177e2005-04-16 15:20:36 -07001152# Definitions to make life easier
1153config ARCH_ACORN
1154 bool
1155
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001156config PLAT_IOP
1157 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001158 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001159
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001160config PLAT_ORION
1161 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001162 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001163 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001164 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001165 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001166
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001167config PLAT_ORION_LEGACY
1168 bool
1169 select PLAT_ORION
1170
Eric Miaobd5ce432009-01-20 12:06:01 +08001171config PLAT_PXA
1172 bool
1173
Russell Kingf4b8b312010-01-14 12:48:06 +00001174config PLAT_VERSATILE
1175 bool
1176
Russell Kinge3887712010-01-14 13:30:16 +00001177config ARM_TIMER_SP804
1178 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001179 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001180 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001181
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182source arch/arm/mm/Kconfig
1183
Russell King958cab02011-12-11 10:04:00 +00001184config ARM_NR_BANKS
1185 int
1186 default 16 if ARCH_EP93XX
1187 default 8
1188
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001189config IWMMXT
1190 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001191 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Haojian Zhuang49ea7fc2012-11-15 17:06:06 +08001192 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001193 help
1194 Enable support for iWMMXt context switching at run time if
1195 running on a CPU that supports it.
1196
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197config XSCALE_PMU
1198 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001199 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001200 default y
1201
eric miao52108642010-12-13 09:42:34 +01001202config MULTI_IRQ_HANDLER
1203 bool
1204 help
1205 Allow each machine to specify it's own IRQ handler at run time.
1206
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001207if !MMU
1208source "arch/arm/Kconfig-nommu"
1209endif
1210
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001211config ARM_ERRATA_326103
1212 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1213 depends on CPU_V6
1214 help
1215 Executing a SWP instruction to read-only memory does not set bit 11
1216 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1217 treat the access as a read, preventing a COW from occurring and
1218 causing the faulting task to livelock.
1219
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001220config ARM_ERRATA_411920
1221 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001222 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001223 help
1224 Invalidation of the Instruction Cache operation can
1225 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1226 It does not affect the MPCore. This option enables the ARM Ltd.
1227 recommended workaround.
1228
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001229config ARM_ERRATA_430973
1230 bool "ARM errata: Stale prediction on replaced interworking branch"
1231 depends on CPU_V7
1232 help
1233 This option enables the workaround for the 430973 Cortex-A8
1234 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1235 interworking branch is replaced with another code sequence at the
1236 same virtual address, whether due to self-modifying code or virtual
1237 to physical address re-mapping, Cortex-A8 does not recover from the
1238 stale interworking branch prediction. This results in Cortex-A8
1239 executing the new code sequence in the incorrect ARM or Thumb state.
1240 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1241 and also flushes the branch target cache at every context switch.
1242 Note that setting specific bits in the ACTLR register may not be
1243 available in non-secure mode.
1244
Catalin Marinas855c5512009-04-30 17:06:15 +01001245config ARM_ERRATA_458693
1246 bool "ARM errata: Processor deadlock when a false hazard is created"
1247 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001248 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001249 help
1250 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1251 erratum. For very specific sequences of memory operations, it is
1252 possible for a hazard condition intended for a cache line to instead
1253 be incorrectly associated with a different cache line. This false
1254 hazard might then cause a processor deadlock. The workaround enables
1255 the L1 caching of the NEON accesses and disables the PLD instruction
1256 in the ACTLR register. Note that setting specific bits in the ACTLR
1257 register may not be available in non-secure mode.
1258
Catalin Marinas0516e462009-04-30 17:06:20 +01001259config ARM_ERRATA_460075
1260 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1261 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001262 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001263 help
1264 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1265 erratum. Any asynchronous access to the L2 cache may encounter a
1266 situation in which recent store transactions to the L2 cache are lost
1267 and overwritten with stale memory contents from external memory. The
1268 workaround disables the write-allocate mode for the L2 cache via the
1269 ACTLR register. Note that setting specific bits in the ACTLR register
1270 may not be available in non-secure mode.
1271
Will Deacon9f050272010-09-14 09:51:43 +01001272config ARM_ERRATA_742230
1273 bool "ARM errata: DMB operation may be faulty"
1274 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001275 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001276 help
1277 This option enables the workaround for the 742230 Cortex-A9
1278 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1279 between two write operations may not ensure the correct visibility
1280 ordering of the two writes. This workaround sets a specific bit in
1281 the diagnostic register of the Cortex-A9 which causes the DMB
1282 instruction to behave as a DSB, ensuring the correct behaviour of
1283 the two writes.
1284
Will Deacona672e992010-09-14 09:53:02 +01001285config ARM_ERRATA_742231
1286 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1287 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001288 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001289 help
1290 This option enables the workaround for the 742231 Cortex-A9
1291 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1292 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1293 accessing some data located in the same cache line, may get corrupted
1294 data due to bad handling of the address hazard when the line gets
1295 replaced from one of the CPUs at the same time as another CPU is
1296 accessing it. This workaround sets specific bits in the diagnostic
1297 register of the Cortex-A9 which reduces the linefill issuing
1298 capabilities of the processor.
1299
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001300config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001301 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001302 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001303 help
1304 The PL310 L2 cache controller implements three types of Clean &
1305 Invalidate maintenance operations: by Physical Address
1306 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1307 They are architecturally defined to behave as the execution of a
1308 clean operation followed immediately by an invalidate operation,
1309 both performing to the same memory location. This functionality
1310 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001311 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001312
1313config ARM_ERRATA_720789
1314 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001315 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001316 help
1317 This option enables the workaround for the 720789 Cortex-A9 (prior to
1318 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1319 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1320 As a consequence of this erratum, some TLB entries which should be
1321 invalidated are not, resulting in an incoherency in the system page
1322 tables. The workaround changes the TLB flushing routines to invalidate
1323 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001324
Russell King1f0090a2011-03-16 23:35:25 +00001325config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001326 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001327 depends on CACHE_L2X0
1328 help
1329 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1330 operation (offset 0x7FC). This operation runs in background so that
1331 PL310 can handle normal accesses while it is in progress. Under very
1332 rare circumstances, due to this erratum, write data can be lost when
1333 PL310 treats a cacheable write transaction during a Clean &
1334 Invalidate by Way operation.
1335
Will Deacon475d92f2010-09-28 14:02:02 +01001336config ARM_ERRATA_743622
1337 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1338 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001339 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001340 help
1341 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001342 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001343 optimisation in the Cortex-A9 Store Buffer may lead to data
1344 corruption. This workaround sets a specific bit in the diagnostic
1345 register of the Cortex-A9 which disables the Store Buffer
1346 optimisation, preventing the defect from occurring. This has no
1347 visible impact on the overall performance or power consumption of the
1348 processor.
1349
Will Deacon9a27c272011-02-18 16:36:35 +01001350config ARM_ERRATA_751472
1351 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001352 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001353 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001354 help
1355 This option enables the workaround for the 751472 Cortex-A9 (prior
1356 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1357 completion of a following broadcasted operation if the second
1358 operation is received by a CPU before the ICIALLUIS has completed,
1359 potentially leading to corrupted entries in the cache or TLB.
1360
Will Deaconfa0ce402011-11-14 17:24:57 +01001361config PL310_ERRATA_753970
1362 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001363 depends on CACHE_PL310
1364 help
1365 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1366
1367 Under some condition the effect of cache sync operation on
1368 the store buffer still remains when the operation completes.
1369 This means that the store buffer is always asked to drain and
1370 this prevents it from merging any further writes. The workaround
1371 is to replace the normal offset of cache sync operation (0x730)
1372 by another offset targeting an unmapped PL310 register 0x740.
1373 This has the same effect as the cache sync operation: store buffer
1374 drain and waiting for all buffers empty.
1375
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001376config ARM_ERRATA_754322
1377 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1378 depends on CPU_V7
1379 help
1380 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1381 r3p*) erratum. A speculative memory access may cause a page table walk
1382 which starts prior to an ASID switch but completes afterwards. This
1383 can populate the micro-TLB with a stale entry which may be hit with
1384 the new ASID. This workaround places two dsb instructions in the mm
1385 switching code so that no page table walks can cross the ASID switch.
1386
Will Deacon5dab26af2011-03-04 12:38:54 +01001387config ARM_ERRATA_754327
1388 bool "ARM errata: no automatic Store Buffer drain"
1389 depends on CPU_V7 && SMP
1390 help
1391 This option enables the workaround for the 754327 Cortex-A9 (prior to
1392 r2p0) erratum. The Store Buffer does not have any automatic draining
1393 mechanism and therefore a livelock may occur if an external agent
1394 continuously polls a memory location waiting to observe an update.
1395 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1396 written polling loops from denying visibility of updates to memory.
1397
Catalin Marinas145e10e2011-08-15 11:04:41 +01001398config ARM_ERRATA_364296
1399 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1400 depends on CPU_V6 && !SMP
1401 help
1402 This options enables the workaround for the 364296 ARM1136
1403 r0p2 erratum (possible cache data corruption with
1404 hit-under-miss enabled). It sets the undocumented bit 31 in
1405 the auxiliary control register and the FI bit in the control
1406 register, thus disabling hit-under-miss without putting the
1407 processor into full low interrupt latency mode. ARM11MPCore
1408 is not affected.
1409
Will Deaconf630c1b2011-09-15 11:45:15 +01001410config ARM_ERRATA_764369
1411 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1412 depends on CPU_V7 && SMP
1413 help
1414 This option enables the workaround for erratum 764369
1415 affecting Cortex-A9 MPCore with two or more processors (all
1416 current revisions). Under certain timing circumstances, a data
1417 cache line maintenance operation by MVA targeting an Inner
1418 Shareable memory region may fail to proceed up to either the
1419 Point of Coherency or to the Point of Unification of the
1420 system. This workaround adds a DSB instruction before the
1421 relevant cache maintenance functions and sets a specific bit
1422 in the diagnostic control register of the SCU.
1423
Will Deacon11ed0ba2011-11-14 17:24:58 +01001424config PL310_ERRATA_769419
1425 bool "PL310 errata: no automatic Store Buffer drain"
1426 depends on CACHE_L2X0
1427 help
1428 On revisions of the PL310 prior to r3p2, the Store Buffer does
1429 not automatically drain. This can cause normal, non-cacheable
1430 writes to be retained when the memory system is idle, leading
1431 to suboptimal I/O performance for drivers using coherent DMA.
1432 This option adds a write barrier to the cpu_idle loop so that,
1433 on systems with an outer cache, the store buffer is drained
1434 explicitly.
1435
Simon Horman7253b852012-09-28 02:12:45 +01001436config ARM_ERRATA_775420
1437 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1438 depends on CPU_V7
1439 help
1440 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1441 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1442 operation aborts with MMU exception, it might cause the processor
1443 to deadlock. This workaround puts DSB before executing ISB if
1444 an abort may occur on cache maintenance.
1445
Linus Torvalds1da177e2005-04-16 15:20:36 -07001446endmenu
1447
1448source "arch/arm/common/Kconfig"
1449
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450menu "Bus support"
1451
1452config ARM_AMBA
1453 bool
1454
1455config ISA
1456 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001457 help
1458 Find out whether you have ISA slots on your motherboard. ISA is the
1459 name of a bus system, i.e. the way the CPU talks to the other stuff
1460 inside your box. Other bus systems are PCI, EISA, MicroChannel
1461 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1462 newer boards don't support it. If you have ISA, say Y, otherwise N.
1463
Russell King065909b2006-01-04 15:44:16 +00001464# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465config ISA_DMA
1466 bool
Russell King065909b2006-01-04 15:44:16 +00001467 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468
Russell King065909b2006-01-04 15:44:16 +00001469# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001470config ISA_DMA_API
1471 bool
Al Viro5cae8412005-05-04 05:39:22 +01001472
Linus Torvalds1da177e2005-04-16 15:20:36 -07001473config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001474 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 help
1476 Find out whether you have a PCI motherboard. PCI is the name of a
1477 bus system, i.e. the way the CPU talks to the other stuff inside
1478 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1479 VESA. If you have PCI, say Y, otherwise N.
1480
Anton Vorontsov52882172010-04-19 13:20:49 +01001481config PCI_DOMAINS
1482 bool
1483 depends on PCI
1484
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001485config PCI_NANOENGINE
1486 bool "BSE nanoEngine PCI support"
1487 depends on SA1100_NANOENGINE
1488 help
1489 Enable PCI on the BSE nanoEngine board.
1490
Matthew Wilcox36e23592007-07-10 10:54:40 -06001491config PCI_SYSCALL
1492 def_bool PCI
1493
Linus Torvalds1da177e2005-04-16 15:20:36 -07001494# Select the host bridge type
1495config PCI_HOST_VIA82C505
1496 bool
1497 depends on PCI && ARCH_SHARK
1498 default y
1499
Mike Rapoporta0113a92007-11-25 08:55:34 +01001500config PCI_HOST_ITE8152
1501 bool
1502 depends on PCI && MACH_ARMCORE
1503 default y
1504 select DMABOUNCE
1505
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506source "drivers/pci/Kconfig"
1507
1508source "drivers/pcmcia/Kconfig"
1509
1510endmenu
1511
1512menu "Kernel Features"
1513
Dave Martin3b556582011-12-07 15:38:04 +00001514config HAVE_SMP
1515 bool
1516 help
1517 This option should be selected by machines which have an SMP-
1518 capable CPU.
1519
1520 The only effect of this option is to make the SMP-related
1521 options available to the user for configuration.
1522
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001524 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001525 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001526 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001527 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001528 depends on MMU
Daniel Walker89c3ded2010-11-22 12:35:41 -08001529 select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
Russell Kingb1b3f492012-10-06 17:12:25 +01001530 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001531 help
1532 This enables support for systems with more than one CPU. If you have
1533 a system with only one CPU, like most personal computers, say N. If
1534 you have a system with more than one CPU, say Y.
1535
1536 If you say N here, the kernel will run on single and multiprocessor
1537 machines, but will use only one CPU of a multiprocessor machine. If
1538 you say Y here, the kernel will run on many, but not all, single
1539 processor machines. On a single processor machine, the kernel will
1540 run faster if you say N here.
1541
Paul Bolle395cf962011-08-15 02:02:26 +02001542 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001543 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001544 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001545
1546 If you don't know what to do here, say N.
1547
Russell Kingf00ec482010-09-04 10:47:48 +01001548config SMP_ON_UP
1549 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001550 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001551 default y
1552 help
1553 SMP kernels contain instructions which fail on non-SMP processors.
1554 Enabling this option allows the kernel to modify itself to make
1555 these instructions safe. Disabling it allows about 1K of space
1556 savings.
1557
1558 If you don't know what to do here, say Y.
1559
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001560config ARM_CPU_TOPOLOGY
1561 bool "Support cpu topology definition"
1562 depends on SMP && CPU_V7
1563 default y
1564 help
1565 Support ARM cpu topology definition. The MPIDR register defines
1566 affinity between processors which is then used to describe the cpu
1567 topology of an ARM System.
1568
1569config SCHED_MC
1570 bool "Multi-core scheduler support"
1571 depends on ARM_CPU_TOPOLOGY
1572 help
1573 Multi-core scheduler support improves the CPU scheduler's decision
1574 making when dealing with multi-core CPU chips at a cost of slightly
1575 increased overhead in some places. If unsure say N here.
1576
1577config SCHED_SMT
1578 bool "SMT scheduler support"
1579 depends on ARM_CPU_TOPOLOGY
1580 help
1581 Improves the CPU scheduler's decision making when dealing with
1582 MultiThreading at a cost of slightly increased overhead in some
1583 places. If unsure say N here.
1584
Russell Kinga8cbcd92009-05-16 11:51:14 +01001585config HAVE_ARM_SCU
1586 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001587 help
1588 This option enables support for the ARM system coherency unit
1589
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001590config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001591 bool "Architected timer support"
1592 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001593 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001594 help
1595 This option enables support for the ARM architected timer
1596
Russell Kingf32f4ce2009-05-16 12:14:21 +01001597config HAVE_ARM_TWD
1598 bool
1599 depends on SMP
1600 help
1601 This options enables support for the ARM timer and watchdog unit
1602
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001603choice
1604 prompt "Memory split"
1605 default VMSPLIT_3G
1606 help
1607 Select the desired split between kernel and user memory.
1608
1609 If you are not absolutely sure what you are doing, leave this
1610 option alone!
1611
1612 config VMSPLIT_3G
1613 bool "3G/1G user/kernel split"
1614 config VMSPLIT_2G
1615 bool "2G/2G user/kernel split"
1616 config VMSPLIT_1G
1617 bool "1G/3G user/kernel split"
1618endchoice
1619
1620config PAGE_OFFSET
1621 hex
1622 default 0x40000000 if VMSPLIT_1G
1623 default 0x80000000 if VMSPLIT_2G
1624 default 0xC0000000
1625
Linus Torvalds1da177e2005-04-16 15:20:36 -07001626config NR_CPUS
1627 int "Maximum number of CPUs (2-32)"
1628 range 2 32
1629 depends on SMP
1630 default "4"
1631
Russell Kinga054a812005-11-02 22:24:33 +00001632config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001633 bool "Support for hot-pluggable CPUs"
1634 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001635 help
1636 Say Y here to experiment with turning CPUs off and on. CPUs
1637 can be controlled through /sys/devices/system/cpu.
1638
Will Deacon2bdd4242012-12-12 19:20:52 +00001639config ARM_PSCI
1640 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1641 depends on CPU_V7
1642 help
1643 Say Y here if you want Linux to communicate with system firmware
1644 implementing the PSCI specification for CPU-centric power
1645 management operations described in ARM document number ARM DEN
1646 0022A ("Power State Coordination Interface System Software on
1647 ARM processors").
1648
Russell King37ee16a2005-11-08 19:08:05 +00001649config LOCAL_TIMERS
1650 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001651 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001652 default y
Changhwan Youn30d8bea2011-03-11 10:39:57 +09001653 select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
Russell King37ee16a2005-11-08 19:08:05 +00001654 help
1655 Enable support for local timers on SMP platforms, rather then the
1656 legacy IPI broadcast method. Local timers allows the system
1657 accounting to be spread across the timer interval, preventing a
1658 "thundering herd" at every timer tick.
1659
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001660# The GPIO number here must be sorted by descending number. In case of
1661# a multiplatform kernel, we just want the highest value required by the
1662# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001663config ARCH_NR_GPIO
1664 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001665 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301666 default 512 if SOC_OMAP5
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001667 default 355 if ARCH_U8500
Maxime Riparde590b912013-01-26 15:36:51 +01001668 default 288 if ARCH_VT8500 || ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001669 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001670 default 0
1671 help
1672 Maximum number of GPIOs in the system.
1673
1674 If unsure, leave the default value.
1675
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001676source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677
Russell Kingf8065812006-03-02 22:41:59 +00001678config HZ
1679 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001680 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001681 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001682 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001683 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001684 default 100
1685
Russell Kingb28748f2013-02-17 14:40:33 +00001686config SCHED_HRTICK
1687 def_bool HIGH_RES_TIMERS
1688
Catalin Marinas16c79652009-07-24 12:33:02 +01001689config THUMB2_KERNEL
Russell King00b7ded2012-10-22 22:54:30 +01001690 bool "Compile the kernel in Thumb-2 mode"
1691 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Catalin Marinas16c79652009-07-24 12:33:02 +01001692 select AEABI
1693 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001694 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001695 help
1696 By enabling this option, the kernel will be compiled in
1697 Thumb-2 mode. A compiler/assembler that understand the unified
1698 ARM-Thumb syntax is needed.
1699
1700 If unsure, say N.
1701
Dave Martin6f685c52011-03-03 11:41:12 +01001702config THUMB2_AVOID_R_ARM_THM_JUMP11
1703 bool "Work around buggy Thumb-2 short branch relocations in gas"
1704 depends on THUMB2_KERNEL && MODULES
1705 default y
1706 help
1707 Various binutils versions can resolve Thumb-2 branches to
1708 locally-defined, preemptible global symbols as short-range "b.n"
1709 branch instructions.
1710
1711 This is a problem, because there's no guarantee the final
1712 destination of the symbol, or any candidate locations for a
1713 trampoline, are within range of the branch. For this reason, the
1714 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1715 relocation in modules at all, and it makes little sense to add
1716 support.
1717
1718 The symptom is that the kernel fails with an "unsupported
1719 relocation" error when loading some modules.
1720
1721 Until fixed tools are available, passing
1722 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1723 code which hits this problem, at the cost of a bit of extra runtime
1724 stack usage in some cases.
1725
1726 The problem is described in more detail at:
1727 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1728
1729 Only Thumb-2 kernels are affected.
1730
1731 Unless you are sure your tools don't have this problem, say Y.
1732
Catalin Marinas0becb082009-07-24 12:32:53 +01001733config ARM_ASM_UNIFIED
1734 bool
1735
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001736config AEABI
1737 bool "Use the ARM EABI to compile the kernel"
1738 help
1739 This option allows for the kernel to be compiled using the latest
1740 ARM ABI (aka EABI). This is only useful if you are using a user
1741 space environment that is also compiled with EABI.
1742
1743 Since there are major incompatibilities between the legacy ABI and
1744 EABI, especially with regard to structure member alignment, this
1745 option also changes the kernel syscall calling convention to
1746 disambiguate both ABIs and allow for backward compatibility support
1747 (selected with CONFIG_OABI_COMPAT).
1748
1749 To use this you need GCC version 4.0.0 or later.
1750
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001751config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001752 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001753 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001754 default y
1755 help
1756 This option preserves the old syscall interface along with the
1757 new (ARM EABI) one. It also provides a compatibility layer to
1758 intercept syscalls that have structure arguments which layout
1759 in memory differs between the legacy ABI and the new ARM EABI
1760 (only for non "thumb" binaries). This option adds a tiny
1761 overhead to all syscalls and produces a slightly larger kernel.
1762 If you know you'll be using only pure EABI user space then you
1763 can say N here. If this option is not selected and you attempt
1764 to execute a legacy ABI binary then the result will be
1765 UNPREDICTABLE (in fact it can be predicted that it won't work
1766 at all). If in doubt say Y.
1767
Mel Gormaneb335752009-05-13 17:34:48 +01001768config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001769 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001770
Russell King05944d72006-11-30 20:43:51 +00001771config ARCH_SPARSEMEM_ENABLE
1772 bool
1773
Russell King07a2f732008-10-01 21:39:58 +01001774config ARCH_SPARSEMEM_DEFAULT
1775 def_bool ARCH_SPARSEMEM_ENABLE
1776
Russell King05944d72006-11-30 20:43:51 +00001777config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001778 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001779
Will Deacon7b7bf492011-05-19 13:21:14 +01001780config HAVE_ARCH_PFN_VALID
1781 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1782
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001783config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001784 bool "High Memory Support"
1785 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001786 help
1787 The address space of ARM processors is only 4 Gigabytes large
1788 and it has to accommodate user address space, kernel address
1789 space as well as some memory mapped IO. That means that, if you
1790 have a large amount of physical memory and/or IO, not all of the
1791 memory can be "permanently mapped" by the kernel. The physical
1792 memory that is not permanently mapped is called "high memory".
1793
1794 Depending on the selected kernel/user memory split, minimum
1795 vmalloc space and actual amount of RAM, you may not need this
1796 option which should result in a slightly faster kernel.
1797
1798 If unsure, say n.
1799
Russell King65cec8e2009-08-17 20:02:06 +01001800config HIGHPTE
1801 bool "Allocate 2nd-level pagetables from highmem"
1802 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001803
Jamie Iles1b8873a2010-02-02 20:25:44 +01001804config HW_PERF_EVENTS
1805 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001806 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001807 default y
1808 help
1809 Enable hardware performance counter support for perf events. If
1810 disabled, perf events will use software events only.
1811
Dave Hansen3f22ab22005-06-23 00:07:43 -07001812source "mm/Kconfig"
1813
Magnus Dammc1b2d972010-07-05 10:00:11 +01001814config FORCE_MAX_ZONEORDER
1815 int "Maximum zone order" if ARCH_SHMOBILE
1816 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001817 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001818 default "9" if SA1111
1819 default "11"
1820 help
1821 The kernel memory allocator divides physically contiguous memory
1822 blocks into "zones", where each zone is a power of two number of
1823 pages. This option selects the largest power of two that the kernel
1824 keeps in the memory allocator. If you need to allocate very large
1825 blocks of physically contiguous memory, then you may need to
1826 increase this value.
1827
1828 This config option is actually maximum order plus one. For example,
1829 a value of 11 means that the largest free memory block is 2^10 pages.
1830
Linus Torvalds1da177e2005-04-16 15:20:36 -07001831config ALIGNMENT_TRAP
1832 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001833 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001835 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001837 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001838 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1839 address divisible by 4. On 32-bit ARM processors, these non-aligned
1840 fetch/store instructions will be emulated in software if you say
1841 here, which has a severe performance impact. This is necessary for
1842 correct operation of some network protocols. With an IP-only
1843 configuration it is safe to say N, otherwise say Y.
1844
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001845config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001846 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1847 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001848 default y if CPU_FEROCEON
1849 help
1850 Implement faster copy_to_user and clear_user methods for CPU
1851 cores where a 8-word STM instruction give significantly higher
1852 memory write throughput than a sequence of individual 32bit stores.
1853
1854 A possible side effect is a slight increase in scheduling latency
1855 between threads sharing the same address space if they invoke
1856 such copy operations with large buffers.
1857
1858 However, if the CPU data cache is using a write-allocate mode,
1859 this option is unlikely to provide any performance gain.
1860
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001861config SECCOMP
1862 bool
1863 prompt "Enable seccomp to safely compute untrusted bytecode"
1864 ---help---
1865 This kernel feature is useful for number crunching applications
1866 that may need to compute untrusted bytecode during their
1867 execution. By using pipes or other transports made available to
1868 the process as file descriptors supporting the read/write
1869 syscalls, it's possible to isolate those applications in
1870 their own address space using seccomp. Once seccomp is
1871 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1872 and the task is only allowed to execute a few safe syscalls
1873 defined by each seccomp mode.
1874
Nicolas Pitrec743f382010-05-24 23:55:42 -04001875config CC_STACKPROTECTOR
1876 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1877 help
1878 This option turns on the -fstack-protector GCC feature. This
1879 feature puts, at the beginning of functions, a canary value on
1880 the stack just before the return address, and validates
1881 the value just before actually returning. Stack based buffer
1882 overflows (that need to overwrite this return address) now also
1883 overwrite the canary, which gets detected and the attack is then
1884 neutralized via a kernel panic.
1885 This feature requires gcc version 4.2 or above.
1886
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001887config XEN_DOM0
1888 def_bool y
1889 depends on XEN
1890
1891config XEN
1892 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001893 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001894 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001895 depends on !GENERIC_ATOMIC64
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001896 help
1897 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1898
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899endmenu
1900
1901menu "Boot options"
1902
Grant Likely9eb8f672011-04-28 14:27:20 -06001903config USE_OF
1904 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001905 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001906 select OF
1907 select OF_EARLY_FLATTREE
1908 help
1909 Include support for flattened device tree machine descriptions.
1910
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001911config ATAGS
1912 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1913 default y
1914 help
1915 This is the traditional way of passing data to the kernel at boot
1916 time. If you are solely relying on the flattened device tree (or
1917 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1918 to remove ATAGS support from your kernel binary. If unsure,
1919 leave this to y.
1920
1921config DEPRECATED_PARAM_STRUCT
1922 bool "Provide old way to pass kernel parameters"
1923 depends on ATAGS
1924 help
1925 This was deprecated in 2001 and announced to live on for 5 years.
1926 Some old boot loaders still use this way.
1927
Linus Torvalds1da177e2005-04-16 15:20:36 -07001928# Compressed boot loader in ROM. Yes, we really want to ask about
1929# TEXT and BSS so we preserve their values in the config files.
1930config ZBOOT_ROM_TEXT
1931 hex "Compressed ROM boot loader base address"
1932 default "0"
1933 help
1934 The physical address at which the ROM-able zImage is to be
1935 placed in the target. Platforms which normally make use of
1936 ROM-able zImage formats normally set this to a suitable
1937 value in their defconfig file.
1938
1939 If ZBOOT_ROM is not enabled, this has no effect.
1940
1941config ZBOOT_ROM_BSS
1942 hex "Compressed ROM boot loader BSS address"
1943 default "0"
1944 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001945 The base address of an area of read/write memory in the target
1946 for the ROM-able zImage which must be available while the
1947 decompressor is running. It must be large enough to hold the
1948 entire decompressed kernel plus an additional 128 KiB.
1949 Platforms which normally make use of ROM-able zImage formats
1950 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951
1952 If ZBOOT_ROM is not enabled, this has no effect.
1953
1954config ZBOOT_ROM
1955 bool "Compressed boot loader in ROM/flash"
1956 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1957 help
1958 Say Y here if you intend to execute your compressed kernel image
1959 (zImage) directly from ROM or flash. If unsure, say N.
1960
Simon Horman090ab3f2011-04-26 06:29:53 +01001961choice
1962 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001963 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001964 default ZBOOT_ROM_NONE
1965 help
1966 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001967 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001968 kernel image to an MMC or SD card and boot the kernel straight
1969 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001970 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001971 rest the kernel image to RAM.
1972
1973config ZBOOT_ROM_NONE
1974 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1975 help
1976 Do not load image from SD or MMC
1977
Simon Hormanf45b1142011-01-11 04:01:08 +01001978config ZBOOT_ROM_MMCIF
1979 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001980 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001981 Load image from MMCIF hardware block.
1982
1983config ZBOOT_ROM_SH_MOBILE_SDHI
1984 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1985 help
1986 Load image from SDHI hardware block
1987
1988endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001989
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001990config ARM_APPENDED_DTB
1991 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001992 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001993 help
1994 With this option, the boot code will look for a device tree binary
1995 (DTB) appended to zImage
1996 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1997
1998 This is meant as a backward compatibility convenience for those
1999 systems with a bootloader that can't be upgraded to accommodate
2000 the documented boot protocol using a device tree.
2001
2002 Beware that there is very little in terms of protection against
2003 this option being confused by leftover garbage in memory that might
2004 look like a DTB header after a reboot if no actual DTB is appended
2005 to zImage. Do not leave this option active in a production kernel
2006 if you don't intend to always append a DTB. Proper passing of the
2007 location into r2 of a bootloader provided DTB is always preferable
2008 to this option.
2009
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04002010config ARM_ATAG_DTB_COMPAT
2011 bool "Supplement the appended DTB with traditional ATAG information"
2012 depends on ARM_APPENDED_DTB
2013 help
2014 Some old bootloaders can't be updated to a DTB capable one, yet
2015 they provide ATAGs with memory configuration, the ramdisk address,
2016 the kernel cmdline string, etc. Such information is dynamically
2017 provided by the bootloader and can't always be stored in a static
2018 DTB. To allow a device tree enabled kernel to be used with such
2019 bootloaders, this option allows zImage to extract the information
2020 from the ATAG list and store it at run time into the appended DTB.
2021
Genoud Richardd0f34a112012-06-26 16:37:59 +01002022choice
2023 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
2024 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2025
2026config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
2027 bool "Use bootloader kernel arguments if available"
2028 help
2029 Uses the command-line options passed by the boot loader instead of
2030 the device tree bootargs property. If the boot loader doesn't provide
2031 any, the device tree bootargs property will be used.
2032
2033config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
2034 bool "Extend with bootloader kernel arguments"
2035 help
2036 The command-line arguments provided by the boot loader will be
2037 appended to the the device tree bootargs property.
2038
2039endchoice
2040
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041config CMDLINE
2042 string "Default kernel command string"
2043 default ""
2044 help
2045 On some architectures (EBSA110 and CATS), there is currently no way
2046 for the boot loader to pass arguments to the kernel. For these
2047 architectures, you should supply some command-line options at build
2048 time by entering them here. As a minimum, you should specify the
2049 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2050
Victor Boivie4394c122011-05-04 17:07:55 +01002051choice
2052 prompt "Kernel command line type" if CMDLINE != ""
2053 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002054 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002055
2056config CMDLINE_FROM_BOOTLOADER
2057 bool "Use bootloader kernel arguments if available"
2058 help
2059 Uses the command-line options passed by the boot loader. If
2060 the boot loader doesn't provide any, the default kernel command
2061 string provided in CMDLINE will be used.
2062
2063config CMDLINE_EXTEND
2064 bool "Extend bootloader kernel arguments"
2065 help
2066 The command-line arguments provided by the boot loader will be
2067 appended to the default kernel command string.
2068
Alexander Holler92d20402010-02-16 19:04:53 +01002069config CMDLINE_FORCE
2070 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002071 help
2072 Always use the default kernel command string, even if the boot
2073 loader passes other arguments to the kernel.
2074 This is useful if you cannot or don't want to change the
2075 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002076endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002077
Linus Torvalds1da177e2005-04-16 15:20:36 -07002078config XIP_KERNEL
2079 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002080 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081 help
2082 Execute-In-Place allows the kernel to run from non-volatile storage
2083 directly addressable by the CPU, such as NOR flash. This saves RAM
2084 space since the text section of the kernel is not loaded from flash
2085 to RAM. Read-write sections, such as the data section and stack,
2086 are still copied to RAM. The XIP kernel is not compressed since
2087 it has to run directly from flash, so it will take more space to
2088 store it. The flash address used to link the kernel object files,
2089 and for storing it, is configuration dependent. Therefore, if you
2090 say Y here, you must know the proper physical address where to
2091 store the kernel image depending on your own flash memory usage.
2092
2093 Also note that the make target becomes "make xipImage" rather than
2094 "make zImage" or "make Image". The final kernel binary to put in
2095 ROM memory will be arch/arm/boot/xipImage.
2096
2097 If unsure, say N.
2098
2099config XIP_PHYS_ADDR
2100 hex "XIP Kernel Physical Location"
2101 depends on XIP_KERNEL
2102 default "0x00080000"
2103 help
2104 This is the physical address in your flash memory the kernel will
2105 be linked for and stored to. This address is dependent on your
2106 own flash usage.
2107
Richard Purdiec587e4a2007-02-06 21:29:00 +01002108config KEXEC
2109 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002110 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002111 help
2112 kexec is a system call that implements the ability to shutdown your
2113 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002114 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002115 you can start any kernel with it, not just Linux.
2116
2117 It is an ongoing process to be certain the hardware in a machine
2118 is properly shutdown, so do not be surprised if this code does not
2119 initially work for you. It may help to enable device hotplugging
2120 support.
2121
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002122config ATAGS_PROC
2123 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002124 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002125 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002126 help
2127 Should the atags used to boot the kernel be exported in an "atags"
2128 file in procfs. Useful with kexec.
2129
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002130config CRASH_DUMP
2131 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002132 help
2133 Generate crash dump after being started by kexec. This should
2134 be normally only set in special crash dump kernels which are
2135 loaded in the main kernel with kexec-tools into a specially
2136 reserved region and then later executed after a crash by
2137 kdump/kexec. The crash dump kernel must be compiled to a
2138 memory address not used by the main kernel
2139
2140 For more details see Documentation/kdump/kdump.txt
2141
Eric Miaoe69edc792010-07-05 15:56:50 +02002142config AUTO_ZRELADDR
2143 bool "Auto calculation of the decompressed kernel image address"
2144 depends on !ZBOOT_ROM && !ARCH_U300
2145 help
2146 ZRELADDR is the physical address where the decompressed kernel
2147 image will be placed. If AUTO_ZRELADDR is selected, the address
2148 will be determined at run-time by masking the current IP with
2149 0xf8000000. This assumes the zImage being placed in the first 128MB
2150 from start of memory.
2151
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152endmenu
2153
Russell Kingac9d7ef2008-08-18 17:26:00 +01002154menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155
Ben Dooks89c52ed2009-07-30 23:23:24 +01002156if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157
2158source "drivers/cpufreq/Kconfig"
2159
Yong Shen64f102b2010-10-21 21:18:59 +08002160config CPU_FREQ_IMX
2161 tristate "CPUfreq driver for i.MX CPUs"
2162 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002163 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002164 help
2165 This enables the CPUfreq driver for i.MX CPUs.
2166
Linus Torvalds1da177e2005-04-16 15:20:36 -07002167config CPU_FREQ_SA1100
2168 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002169
2170config CPU_FREQ_SA1110
2171 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002172
2173config CPU_FREQ_INTEGRATOR
2174 tristate "CPUfreq driver for ARM Integrator CPUs"
2175 depends on ARCH_INTEGRATOR && CPU_FREQ
2176 default y
2177 help
2178 This enables the CPUfreq driver for ARM Integrator CPUs.
2179
2180 For details, take a look at <file:Documentation/cpu-freq>.
2181
2182 If in doubt, say Y.
2183
Russell King9e2697f2007-12-14 13:30:14 +00002184config CPU_FREQ_PXA
2185 bool
2186 depends on CPU_FREQ && ARCH_PXA && PXA25x
2187 default y
2188 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002189 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002190
Ben Dooks9d56c022009-07-30 23:23:25 +01002191config CPU_FREQ_S3C
2192 bool
2193 help
2194 Internal configuration node for common cpufreq on Samsung SoC
2195
2196config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002197 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002198 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002199 select CPU_FREQ_S3C
2200 help
2201 This enables the CPUfreq driver for the Samsung S3C24XX family
2202 of CPUs.
2203
2204 For details, take a look at <file:Documentation/cpu-freq>.
2205
2206 If in doubt, say N.
2207
2208config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002209 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002210 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002211 help
2212 Compile in support for changing the PLL frequency from the
2213 S3C24XX series CPUfreq driver. The PLL takes time to settle
2214 after a frequency change, so by default it is not enabled.
2215
2216 This also means that the PLL tables for the selected CPU(s) will
2217 be built which may increase the size of the kernel image.
2218
2219config CPU_FREQ_S3C24XX_DEBUG
2220 bool "Debug CPUfreq Samsung driver core"
2221 depends on CPU_FREQ_S3C24XX
2222 help
2223 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2224
2225config CPU_FREQ_S3C24XX_IODEBUG
2226 bool "Debug CPUfreq Samsung driver IO timing"
2227 depends on CPU_FREQ_S3C24XX
2228 help
2229 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2230
Ben Dookse6d197a2009-07-30 23:23:42 +01002231config CPU_FREQ_S3C24XX_DEBUGFS
2232 bool "Export debugfs for CPUFreq"
2233 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2234 help
2235 Export status information via debugfs.
2236
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237endif
2238
Russell Kingac9d7ef2008-08-18 17:26:00 +01002239source "drivers/cpuidle/Kconfig"
2240
2241endmenu
2242
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243menu "Floating point emulation"
2244
2245comment "At least one emulation must be selected"
2246
2247config FPE_NWFPE
2248 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002249 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250 ---help---
2251 Say Y to include the NWFPE floating point emulator in the kernel.
2252 This is necessary to run most binaries. Linux does not currently
2253 support floating point hardware so you need to say Y here even if
2254 your machine has an FPA or floating point co-processor podule.
2255
2256 You may say N here if you are going to load the Acorn FPEmulator
2257 early in the bootup.
2258
2259config FPE_NWFPE_XP
2260 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002261 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262 help
2263 Say Y to include 80-bit support in the kernel floating-point
2264 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2265 Note that gcc does not generate 80-bit operations by default,
2266 so in most cases this option only enlarges the size of the
2267 floating point emulator without any good reason.
2268
2269 You almost surely want to say N here.
2270
2271config FPE_FASTFPE
2272 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002273 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274 ---help---
2275 Say Y here to include the FAST floating point emulator in the kernel.
2276 This is an experimental much faster emulator which now also has full
2277 precision for the mantissa. It does not support any exceptions.
2278 It is very simple, and approximately 3-6 times faster than NWFPE.
2279
2280 It should be sufficient for most programs. It may be not suitable
2281 for scientific calculations, but you have to check this for yourself.
2282 If you do not feel you need a faster FP emulation you should better
2283 choose NWFPE.
2284
2285config VFP
2286 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002287 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288 help
2289 Say Y to include VFP support code in the kernel. This is needed
2290 if your hardware includes a VFP unit.
2291
2292 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2293 release notes and additional status information.
2294
2295 Say N if your target does not have VFP hardware.
2296
Catalin Marinas25ebee02007-09-25 15:22:24 +01002297config VFPv3
2298 bool
2299 depends on VFP
2300 default y if CPU_V7
2301
Catalin Marinasb5872db2008-01-10 19:16:17 +01002302config NEON
2303 bool "Advanced SIMD (NEON) Extension support"
2304 depends on VFPv3 && CPU_V7
2305 help
2306 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2307 Extension.
2308
Linus Torvalds1da177e2005-04-16 15:20:36 -07002309endmenu
2310
2311menu "Userspace binary formats"
2312
2313source "fs/Kconfig.binfmt"
2314
2315config ARTHUR
2316 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002317 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002318 help
2319 Say Y here to include the kernel code necessary if you want to run
2320 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2321 experimental; if this sounds frightening, say N and sleep in peace.
2322 You can also say M here to compile this support as a module (which
2323 will be called arthur).
2324
2325endmenu
2326
2327menu "Power management options"
2328
Russell Kingeceab4a2005-11-15 11:31:41 +00002329source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002330
Johannes Bergf4cb5702007-12-08 02:14:00 +01002331config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002332 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002333 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002334 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002335 def_bool y
2336
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002337config ARM_CPU_SUSPEND
2338 def_bool PM_SLEEP
2339
Linus Torvalds1da177e2005-04-16 15:20:36 -07002340endmenu
2341
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002342source "net/Kconfig"
2343
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002344source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002345
2346source "fs/Kconfig"
2347
Linus Torvalds1da177e2005-04-16 15:20:36 -07002348source "arch/arm/Kconfig.debug"
2349
2350source "security/Kconfig"
2351
2352source "crypto/Kconfig"
2353
2354source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002355
2356source "arch/arm/kvm/Kconfig"