blob: 7a14af6e3d2ca5055376cd001515b4bc67c8ccb1 [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
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Salterd7018842013-10-07 22:07:58 -04008 select ARCH_MIGHT_HAVE_PC_PARPORT
Kim Phillips017f1612013-11-06 05:15:24 +01009 select ARCH_USE_BUILTIN_BSWAP
Will Deacon0cbad9c2013-10-09 17:19:22 +010010 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010011 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010012 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010013 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010014 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacondce5c9e2013-12-17 19:50:16 +010015 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010016 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010017 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010018 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010019 select GENERIC_IRQ_PROBE
20 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010021 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070022 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010023 select GENERIC_SMP_IDLE_THREAD
24 select GENERIC_STRNCPY_FROM_USER
25 select GENERIC_STRNLEN_USER
26 select HARDIRQS_SW_RESEND
AKASHI Takahiro7a017722014-02-25 18:16:24 +090027 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
Rabin Vincent09f05d82012-02-18 17:52:41 +010028 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060029 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010030 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010031 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010032 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010033 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010034 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010035 select HAVE_C_RECORDMCOUNT
36 select HAVE_DEBUG_KMEMLEAK
37 select HAVE_DMA_API_DEBUG
38 select HAVE_DMA_ATTRS
39 select HAVE_DMA_CONTIGUOUS if MMU
40 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010041 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010042 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
43 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
44 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
45 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
47 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010048 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010049 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070050 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010051 select HAVE_KERNEL_LZMA
52 select HAVE_KERNEL_LZO
53 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010054 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080055 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010056 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010057 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010058 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010059 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010060 select HAVE_PERF_REGS
61 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010062 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010063 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070064 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070065 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010066 select IRQ_FORCED_THREADING
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000067 select KTIME_SCALAR
Russell King171b3f02013-09-12 21:24:42 +010068 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040069 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010070 select OLD_SIGACTION
71 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010072 select PERF_USE_VMALLOC
73 select RTC_LIB
74 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010075 # Above selects are sorted alphabetically; please add new ones
76 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 help
78 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000079 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000081 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 Europe. There is an ARM Linux project with a web page at
83 <http://www.arm.linux.org.uk/>.
84
Russell King74facff2011-06-02 11:16:22 +010085config ARM_HAS_SG_CHAIN
86 bool
87
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020088config NEED_SG_DMA_LENGTH
89 bool
90
91config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020092 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010093 select ARM_HAS_SG_CHAIN
94 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020095
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090096if ARM_DMA_USE_IOMMU
97
98config ARM_DMA_IOMMU_ALIGNMENT
99 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
100 range 4 9
101 default 8
102 help
103 DMA mapping framework by default aligns all buffers to the smallest
104 PAGE_SIZE order which is greater than or equal to the requested buffer
105 size. This works well for buffers up to a few hundreds kilobytes, but
106 for larger buffers it just a waste of address space. Drivers which has
107 relatively small addressing window (like 64Mib) might run out of
108 virtual space with just a few allocations.
109
110 With this parameter you can specify the maximum PAGE_SIZE order for
111 DMA IOMMU buffers. Larger buffers will be aligned only to this
112 specified order. The order is expressed as a power of two multiplied
113 by the PAGE_SIZE.
114
115endif
116
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100117config MIGHT_HAVE_PCI
118 bool
119
Ralf Baechle75e71532007-02-09 17:08:58 +0000120config SYS_SUPPORTS_APM_EMULATION
121 bool
122
Linus Walleijbc581772009-09-15 17:30:37 +0100123config HAVE_TCM
124 bool
125 select GENERIC_ALLOCATOR
126
Russell Kinge119bff2010-01-10 17:23:29 +0000127config HAVE_PROC_CPU
128 bool
129
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700130config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000131 bool
Al Viro5ea81762007-02-11 15:41:31 +0000132
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133config EISA
134 bool
135 ---help---
136 The Extended Industry Standard Architecture (EISA) bus was
137 developed as an open alternative to the IBM MicroChannel bus.
138
139 The EISA bus provided some of the features of the IBM MicroChannel
140 bus while maintaining backward compatibility with cards made for
141 the older ISA bus. The EISA bus saw limited use between 1988 and
142 1995 when it was made obsolete by the PCI bus.
143
144 Say Y here if you are building a kernel for an EISA-based machine.
145
146 Otherwise, say N.
147
148config SBUS
149 bool
150
Russell Kingf16fb1e2007-04-28 09:59:37 +0100151config STACKTRACE_SUPPORT
152 bool
153 default y
154
Nicolas Pitref76e9152008-04-24 01:31:46 -0400155config HAVE_LATENCYTOP_SUPPORT
156 bool
157 depends on !SMP
158 default y
159
Russell Kingf16fb1e2007-04-28 09:59:37 +0100160config LOCKDEP_SUPPORT
161 bool
162 default y
163
Russell King7ad1bcb2006-08-27 12:07:02 +0100164config TRACE_IRQFLAGS_SUPPORT
165 bool
166 default y
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168config RWSEM_XCHGADD_ALGORITHM
169 bool
Will Deacon8a874112014-05-02 17:06:19 +0100170 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
David Howellsf0d1b0b2006-12-08 02:37:49 -0800172config ARCH_HAS_ILOG2_U32
173 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800174
175config ARCH_HAS_ILOG2_U64
176 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800177
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100178config ARCH_HAS_BANDGAP
179 bool
180
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800181config GENERIC_HWEIGHT
182 bool
183 default y
184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185config GENERIC_CALIBRATE_DELAY
186 bool
187 default y
188
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100189config ARCH_MAY_HAVE_PC_FDC
190 bool
191
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800192config ZONE_DMA
193 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800194
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800195config NEED_DMA_MAP_STATE
196 def_bool y
197
David A. Longc7edc9e2014-03-07 11:23:04 -0500198config ARCH_SUPPORTS_UPROBES
199 def_bool y
200
Rob Herring58af4a22012-03-20 14:33:01 -0500201config ARCH_HAS_DMA_SET_COHERENT_MASK
202 bool
203
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204config GENERIC_ISA_DMA
205 bool
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207config FIQ
208 bool
209
Rob Herring13a50452012-02-07 09:28:22 -0600210config NEED_RET_TO_USER
211 bool
212
Al Viro034d2f52005-12-19 16:27:59 -0500213config ARCH_MTD_XIP
214 bool
215
Hyok S. Choic760fc12006-03-27 15:18:50 +0100216config VECTORS_BASE
217 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900218 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100219 default DRAM_BASE if REMAP_VECTORS_TO_RAM
220 default 0x00000000
221 help
Russell King19accfd2013-07-04 11:40:32 +0100222 The base address of exception vectors. This must be two pages
223 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100224
Russell Kingdc21af92011-01-04 19:09:43 +0000225config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100226 bool "Patch physical to virtual translations at runtime" if EMBEDDED
227 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100228 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000229 depends on !ARCH_REALVIEW || !SPARSEMEM
230 help
Russell King111e9a52011-05-12 10:02:42 +0100231 Patch phys-to-virt and virt-to-phys translation functions at
232 boot and module load time according to the position of the
233 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000234
Russell King111e9a52011-05-12 10:02:42 +0100235 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100236 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000237
Russell Kingc1beced2011-08-10 10:23:45 +0100238 Only disable this option if you know that you do not require
239 this feature (eg, building a kernel for a single machine) and
240 you need to shrink the kernel to the minimal size.
241
Rob Herring01464222012-08-28 13:06:41 -0500242config NEED_MACH_GPIO_H
243 bool
244 help
245 Select this when mach/gpio.h is required to provide special
246 definitions for this platform. The need for mach/gpio.h should
247 be avoided when possible.
248
Rob Herringc334bc12012-03-04 22:03:33 -0600249config NEED_MACH_IO_H
250 bool
251 help
252 Select this when mach/io.h is required to provide special
253 definitions for this platform. The need for mach/io.h should
254 be avoided when possible.
255
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400256config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400257 bool
Russell King111e9a52011-05-12 10:02:42 +0100258 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400259 Select this when mach/memory.h is required to provide special
260 definitions for this platform. The need for mach/memory.h should
261 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400262
263config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100264 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400265 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100266 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400267 help
268 Please provide the physical address corresponding to the
269 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000270
Simon Glass87e040b2011-08-16 23:44:26 +0100271config GENERIC_BUG
272 def_bool y
273 depends on BUG
274
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275source "init/Kconfig"
276
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700277source "kernel/Kconfig.freezer"
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279menu "System Type"
280
Hyok S. Choi3c427972009-07-24 12:35:00 +0100281config MMU
282 bool "MMU-based Paged Memory Management Support"
283 default y
284 help
285 Select if you want MMU-based virtualised addressing space
286 support by paged memory management. If unsure, say 'Y'.
287
Russell Kingccf50e22010-03-15 19:03:06 +0000288#
289# The "ARM system type" choice list is ordered alphabetically by option
290# text. Please add new entries in the option alphabetic order.
291#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292choice
293 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100294 default ARCH_VERSATILE if !MMU
295 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296
Rob Herring387798b2012-09-06 13:41:12 -0500297config ARCH_MULTIPLATFORM
298 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100299 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600300 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700301 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500302 select ARM_PATCH_PHYS_VIRT
303 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500304 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600305 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600306 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100307 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500308 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600309 select SPARSE_IRQ
310 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600311
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100312config ARCH_INTEGRATOR
313 bool "ARM Ltd. Integrator family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100314 select ARM_AMBA
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100315 select ARM_PATCH_PHYS_VIRT if MMU
panchaxarife989142013-12-02 16:58:51 +0530316 select AUTO_ZRELADDR
Linus Walleija6131632012-06-11 17:33:12 +0200317 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200318 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100319 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100320 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000321 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100322 select MULTI_IRQ_HANDLER
323 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000324 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100325 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200326 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100327 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100328 help
329 Support for ARM's Integrator platform.
330
331config ARCH_REALVIEW
332 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100333 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100334 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100335 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200336 select COMMON_CLK
337 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100338 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100339 select GPIO_PL061 if GPIOLIB
340 select ICST
341 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000342 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000343 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100344 help
345 This enables support for ARM Ltd RealView boards.
346
347config ARCH_VERSATILE
348 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100349 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100350 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100351 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100353 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100354 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900355 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000356 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000357 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000358 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100359 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100360 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100361 help
362 This enables support for ARM Ltd Versatile board.
363
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100364config ARCH_AT91
365 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100366 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100367 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100368 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500369 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800370 select PINCTRL
371 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100372 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100373 This enables support for systems based on Atmel
374 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100375
Russell King93e22562012-10-12 14:20:52 +0100376config ARCH_CLPS711X
377 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400378 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400379 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400380 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100381 select COMMON_CLK
382 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400383 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400384 select MFD_SYSCON
Russell King93e22562012-10-12 14:20:52 +0100385 help
386 Support for Cirrus Logic 711x/721x/731x based boards.
387
Russell King788c9702009-04-26 14:21:59 +0100388config ARCH_GEMINI
389 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100390 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200391 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100392 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200393 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100394 help
395 Support for the Cortina Systems Gemini family SoCs
396
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397config ARCH_EBSA110
398 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100399 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000400 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100401 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600402 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400403 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700404 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 help
406 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000407 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408 Ethernet interface, two PCMCIA sockets, two serial ports and a
409 parallel port.
410
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100411config ARCH_EFM32
412 bool "Energy Micro efm32"
413 depends on !MMU
414 select ARCH_REQUIRE_GPIOLIB
415 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100416 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100417 select CLKSRC_OF
418 select COMMON_CLK
419 select CPU_V7M
420 select GENERIC_CLOCKEVENTS
421 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700422 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100423 select SPARSE_IRQ
424 select USE_OF
425 help
426 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
427 processors.
428
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000429config ARCH_EP93XX
430 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100431 select ARCH_HAS_HOLES_MEMORYMODEL
432 select ARCH_REQUIRE_GPIOLIB
433 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000434 select ARM_AMBA
435 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100436 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100437 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100438 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000439 help
440 This enables support for the Cirrus EP93xx series of CPUs.
441
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442config ARCH_FOOTBRIDGE
443 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000444 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000446 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200447 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600448 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400449 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000450 help
451 Support for systems based on the DC21285 companion chip
452 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100454config ARCH_NETX
455 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100456 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100457 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000458 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100459 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000460 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100461 This enables support for systems based on the Hilscher NetX Soc
462
Russell King3b938be2007-05-12 11:25:44 +0100463config ARCH_IOP13XX
464 bool "IOP13xx-based"
465 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100466 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400467 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600468 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100469 select PCI
470 select PLAT_IOP
471 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000472 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100473 help
474 Support for Intel's IOP13XX (XScale) family of processors.
475
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100476config ARCH_IOP32X
477 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100478 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100479 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200481 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600482 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100483 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100484 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000485 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100486 Support for Intel's 80219 and IOP32X (XScale) family of
487 processors.
488
489config ARCH_IOP33X
490 bool "IOP33x-based"
491 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100492 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000493 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200494 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600495 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100496 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100497 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100498 help
499 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500
Russell King3b938be2007-05-12 11:25:44 +0100501config ARCH_IXP4XX
502 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100503 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500504 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100505 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100506 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100507 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000508 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100509 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100510 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100511 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600512 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200513 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100514 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100515 help
Russell King3b938be2007-05-12 11:25:44 +0100516 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100517
Saeed Bisharaedabd382009-08-06 15:12:43 +0300518config ARCH_DOVE
519 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300520 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100521 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300522 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100523 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100524 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100525 select PINCTRL
526 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200527 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300528 help
529 Support for the Marvell Dove SoC 88AP510
530
Saeed Bishara651c74c2008-06-22 22:45:06 +0200531config ARCH_KIRKWOOD
532 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700533 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100534 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200535 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100536 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100537 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700538 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100539 select PINCTRL
540 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200541 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200542 help
543 Support for the following Marvell Kirkwood series SoCs:
544 88F6180, 88F6192 and 88F6281.
545
Russell King788c9702009-04-26 14:21:59 +0100546config ARCH_MV78XX0
547 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700548 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100549 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100550 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100551 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100552 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200553 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100554 help
555 Support for the following Marvell MV78xx0 series SoCs:
556 MV781x0, MV782x0.
557
558config ARCH_ORION5X
559 bool "Marvell Orion"
560 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700561 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100562 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100563 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100564 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100565 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200566 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100567 help
568 Support for the following Marvell Orion 5x series SoCs:
569 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
570 Orion-2 (5281), Orion-1-90 (6183).
571
572config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500573 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100574 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100575 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100576 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100577 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100578 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800579 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800580 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800581 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800582 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100583 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400584 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100585 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500586 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100587
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100588config ARCH_KS8695
589 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100590 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200591 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100592 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200593 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100594 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100595 help
596 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
597 System-on-Chip devices.
598
Russell King788c9702009-04-26 14:21:59 +0100599config ARCH_W90X900
600 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100601 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100602 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100603 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100604 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100605 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200606 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100607 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
608 At present, the w90x900 has been renamed nuc900, regarding
609 the ARM series product line, you can login the following
610 link address to know more.
611
612 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
613 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400614
Russell King93e22562012-10-12 14:20:52 +0100615config ARCH_LPC32XX
616 bool "NXP LPC32XX"
617 select ARCH_REQUIRE_GPIOLIB
618 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000619 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100620 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100621 select CPU_ARM926T
622 select GENERIC_CLOCKEVENTS
623 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100624 select USE_OF
625 help
626 Support for the NXP LPC32XX family of processors
627
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700629 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100630 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100631 select ARCH_MTD_XIP
632 select ARCH_REQUIRE_GPIOLIB
633 select ARM_CPU_SUSPEND if PM
634 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100635 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100636 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100637 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800638 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100639 select HAVE_IDE
640 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800641 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800642 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000643 help
eric miao2c8086a2007-09-11 19:13:17 -0700644 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600646config ARCH_MSM
647 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700648 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700649 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100650 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800651 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800652 Support for Qualcomm MSM/QSD based systems. This runs on the
653 apps processor of the MSM/QSD and depends on a shared memory
654 interface to the modem processor which runs the baseband
655 stack and controls some vital subsystems
656 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800657
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100658config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100659 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100660 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100661 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900662 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100663 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800664 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800665 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900666 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000667 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000668 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000669 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700670 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200671 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100672 select PM_GENERIC_DOMAINS if PM
673 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000674 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100675 Support for Renesas ARM SoC platforms using a non-multiplatform
676 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
677 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000678
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679config ARCH_RPC
680 bool "RiscPC"
681 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100682 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100683 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000684 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100685 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200687 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100688 select HAVE_PATA_PLATFORM
689 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600690 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400691 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700692 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100693 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 help
695 On the Acorn Risc-PC, Linux can support the internal IDE disk and
696 CD-ROM interface, serial and parallel port, and the floppy drive.
697
698config ARCH_SA1100
699 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100700 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700701 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100702 select ARCH_SPARSEMEM_ENABLE
703 select CLKDEV_LOOKUP
704 select CLKSRC_MMIO
705 select CPU_FREQ
706 select CPU_SA1100
707 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200708 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400710 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100711 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000712 help
713 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900715config ARCH_S3C24XX
716 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900717 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100718 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100719 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200720 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800721 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900722 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900723 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900724 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900726 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600727 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900728 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900730 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
731 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
732 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
733 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900734
Ben Dooksa08ab632008-10-21 14:06:39 +0100735config ARCH_S3C64XX
736 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900737 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200738 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100740 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200742 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900743 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900744 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800745 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900746 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900747 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900748 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100749 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700750 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100751 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100752 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select S3C_DEV_NAND
754 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900755 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900756 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900757 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100758 help
759 Samsung S3C64XX series based systems
760
Kukjin Kim49b7a492010-09-07 15:47:18 +0900761config ARCH_S5P64X0
762 bool "Samsung S5P6440 S5P6450"
Arnd Bergmann335cce72014-03-13 14:11:16 +0100763 select ATAGS
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900764 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200765 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900767 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900768 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900769 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900771 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500772 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900773 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100774 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900775 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900776 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
777 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900778
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200779config ARCH_S5PC100
780 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900781 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100782 select ATAGS
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900783 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200784 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900785 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800786 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900787 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900788 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900789 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500791 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900792 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100793 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900794 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200795 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900796
Kukjin Kim170f4e42010-02-24 16:40:44 +0900797config ARCH_S5PV210
798 bool "Samsung S5PV210/S5PC110"
Kamil Debski0f75a962011-07-21 16:42:30 +0900799 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100800 select ARCH_SPARSEMEM_ENABLE
Arnd Bergmann335cce72014-03-13 14:11:16 +0100801 select ATAGS
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900802 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200803 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900805 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900806 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900807 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900808 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500810 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400811 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900812 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900813 help
814 Samsung S5PV210/S5PC110 series based systems
815
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100816config ARCH_DAVINCI
817 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700819 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100820 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700821 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100822 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100823 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500825 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530826 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100828 help
829 Support for TI's DaVinci platform.
830
Tony Lindgrena0694862013-01-11 11:24:20 -0800831config ARCH_OMAP1
832 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600833 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800835 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100836 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200837 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100838 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100839 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800840 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800841 select HAVE_IDE
842 select IRQ_DOMAIN
843 select NEED_MACH_IO_H if PCCARD
844 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100845 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800846 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800847
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848endchoice
849
Rob Herring387798b2012-09-06 13:41:12 -0500850menu "Multiple platform selection"
851 depends on ARCH_MULTIPLATFORM
852
853comment "CPU Core family selection"
854
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100855config ARCH_MULTI_V4
856 bool "ARMv4 based platforms (FA526)"
857 depends on !ARCH_MULTI_V6_V7
858 select ARCH_MULTI_V4_V5
859 select CPU_FA526
860
Rob Herring387798b2012-09-06 13:41:12 -0500861config ARCH_MULTI_V4T
862 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500863 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200865 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
866 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
867 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500868
869config ARCH_MULTI_V5
870 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500871 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100872 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100873 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200874 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
875 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500876
877config ARCH_MULTI_V4_V5
878 bool
879
880config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800881 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500882 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600883 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500884
885config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800886 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500887 default y
888 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100889 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600890 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500891
892config ARCH_MULTI_V6_V7
893 bool
Rob Herring9352b052014-01-31 15:36:10 -0600894 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500895
896config ARCH_MULTI_CPU_AUTO
897 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
898 select ARCH_MULTI_V5
899
900endmenu
901
Rob Herring05e2a3d2013-12-05 10:04:54 -0600902config ARCH_VIRT
903 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600904 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600905 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600906 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600907 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600908
Russell Kingccf50e22010-03-15 19:03:06 +0000909#
910# This is sorted alphabetically by mach-* pathname. However, plat-*
911# Kconfigs may be included either alphabetically (according to the
912# plat- suffix) or along side the corresponding mach-* source.
913#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200914source "arch/arm/mach-mvebu/Kconfig"
915
Russell King95b8f202010-01-14 11:43:54 +0000916source "arch/arm/mach-at91/Kconfig"
917
Anders Berg1d22924e2014-05-23 11:08:35 +0200918source "arch/arm/mach-axxia/Kconfig"
919
Christian Daudt8ac49e02012-11-19 09:46:10 -0800920source "arch/arm/mach-bcm/Kconfig"
921
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200922source "arch/arm/mach-berlin/Kconfig"
923
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924source "arch/arm/mach-clps711x/Kconfig"
925
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300926source "arch/arm/mach-cns3xxx/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-davinci/Kconfig"
929
930source "arch/arm/mach-dove/Kconfig"
931
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000932source "arch/arm/mach-ep93xx/Kconfig"
933
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934source "arch/arm/mach-footbridge/Kconfig"
935
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200936source "arch/arm/mach-gemini/Kconfig"
937
Rob Herring387798b2012-09-06 13:41:12 -0500938source "arch/arm/mach-highbank/Kconfig"
939
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800940source "arch/arm/mach-hisi/Kconfig"
941
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942source "arch/arm/mach-integrator/Kconfig"
943
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100944source "arch/arm/mach-iop32x/Kconfig"
945
946source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
Dan Williams285f5fa2006-12-07 02:59:39 +0100948source "arch/arm/mach-iop13xx/Kconfig"
949
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950source "arch/arm/mach-ixp4xx/Kconfig"
951
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400952source "arch/arm/mach-keystone/Kconfig"
953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-kirkwood/Kconfig"
955
956source "arch/arm/mach-ks8695/Kconfig"
957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-msm/Kconfig"
959
Jonas Jensen17723fd32013-12-18 13:58:45 +0100960source "arch/arm/mach-moxart/Kconfig"
961
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200962source "arch/arm/mach-mv78xx0/Kconfig"
963
Shawn Guo3995eb82012-09-13 19:48:07 +0800964source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800966source "arch/arm/mach-mxs/Kconfig"
967
Russell King95b8f202010-01-14 11:43:54 +0000968source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800969
Russell King95b8f202010-01-14 11:43:54 +0000970source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000971
Daniel Tang9851ca52013-06-11 18:40:17 +1000972source "arch/arm/mach-nspire/Kconfig"
973
Tony Lindgrend48af152005-07-10 19:58:17 +0100974source "arch/arm/plat-omap/Kconfig"
975
976source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977
Tony Lindgren1dbae812005-11-10 14:26:51 +0000978source "arch/arm/mach-omap2/Kconfig"
979
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400980source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400981
Rob Herring387798b2012-09-06 13:41:12 -0500982source "arch/arm/mach-picoxcell/Kconfig"
983
Russell King95b8f202010-01-14 11:43:54 +0000984source "arch/arm/mach-pxa/Kconfig"
985source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986
Russell King95b8f202010-01-14 11:43:54 +0000987source "arch/arm/mach-mmp/Kconfig"
988
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600989source "arch/arm/mach-qcom/Kconfig"
990
Russell King95b8f202010-01-14 11:43:54 +0000991source "arch/arm/mach-realview/Kconfig"
992
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200993source "arch/arm/mach-rockchip/Kconfig"
994
Russell King95b8f202010-01-14 11:43:54 +0000995source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300996
Rob Herring387798b2012-09-06 13:41:12 -0500997source "arch/arm/mach-socfpga/Kconfig"
998
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100999source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001000
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +01001001source "arch/arm/mach-sti/Kconfig"
1002
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001003source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
Ben Dooks431107e2010-01-26 10:11:04 +09001005source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001006
Kukjin Kim49b7a492010-09-07 15:47:18 +09001007source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001008
Byungho Min5a7652f2009-06-23 21:39:42 +09001009source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001010
Kukjin Kim170f4e42010-02-24 16:40:44 +09001011source "arch/arm/mach-s5pv210/Kconfig"
1012
Kukjin Kim83014572011-11-06 13:54:56 +09001013source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -05001014source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001015
Russell King882d01f2010-03-02 23:40:15 +00001016source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
Maxime Ripard3b526342012-11-08 12:40:16 +01001018source "arch/arm/mach-sunxi/Kconfig"
1019
Barry Song156a0992012-08-23 13:41:58 +08001020source "arch/arm/mach-prima2/Kconfig"
1021
Erik Gillingc5f80062010-01-21 16:53:02 -08001022source "arch/arm/mach-tegra/Kconfig"
1023
Russell King95b8f202010-01-14 11:43:54 +00001024source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001025
Russell King95b8f202010-01-14 11:43:54 +00001026source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027
1028source "arch/arm/mach-versatile/Kconfig"
1029
Russell Kingceade892010-02-11 21:44:53 +00001030source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001031source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001032
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001033source "arch/arm/mach-vt8500/Kconfig"
1034
wanzongshun7ec80dd2008-12-03 03:55:38 +01001035source "arch/arm/mach-w90x900/Kconfig"
1036
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001037source "arch/arm/mach-zynq/Kconfig"
1038
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039# Definitions to make life easier
1040config ARCH_ACORN
1041 bool
1042
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001043config PLAT_IOP
1044 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001045 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001046
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001047config PLAT_ORION
1048 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001049 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001050 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001051 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001052 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001053
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001054config PLAT_ORION_LEGACY
1055 bool
1056 select PLAT_ORION
1057
Eric Miaobd5ce432009-01-20 12:06:01 +08001058config PLAT_PXA
1059 bool
1060
Russell Kingf4b8b312010-01-14 12:48:06 +00001061config PLAT_VERSATILE
1062 bool
1063
Russell Kinge3887712010-01-14 13:30:16 +00001064config ARM_TIMER_SP804
1065 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001066 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001067 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001068
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001069source "arch/arm/firmware/Kconfig"
1070
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071source arch/arm/mm/Kconfig
1072
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001073config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001074 bool "Enable iWMMXt support"
1075 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1076 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001077 help
1078 Enable support for iWMMXt context switching at run time if
1079 running on a CPU that supports it.
1080
eric miao52108642010-12-13 09:42:34 +01001081config MULTI_IRQ_HANDLER
1082 bool
1083 help
1084 Allow each machine to specify it's own IRQ handler at run time.
1085
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001086if !MMU
1087source "arch/arm/Kconfig-nommu"
1088endif
1089
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001090config PJ4B_ERRATA_4742
1091 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1092 depends on CPU_PJ4B && MACH_ARMADA_370
1093 default y
1094 help
1095 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1096 Event (WFE) IDLE states, a specific timing sensitivity exists between
1097 the retiring WFI/WFE instructions and the newly issued subsequent
1098 instructions. This sensitivity can result in a CPU hang scenario.
1099 Workaround:
1100 The software must insert either a Data Synchronization Barrier (DSB)
1101 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1102 instruction
1103
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001104config ARM_ERRATA_326103
1105 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1106 depends on CPU_V6
1107 help
1108 Executing a SWP instruction to read-only memory does not set bit 11
1109 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1110 treat the access as a read, preventing a COW from occurring and
1111 causing the faulting task to livelock.
1112
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001113config ARM_ERRATA_411920
1114 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001115 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001116 help
1117 Invalidation of the Instruction Cache operation can
1118 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1119 It does not affect the MPCore. This option enables the ARM Ltd.
1120 recommended workaround.
1121
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001122config ARM_ERRATA_430973
1123 bool "ARM errata: Stale prediction on replaced interworking branch"
1124 depends on CPU_V7
1125 help
1126 This option enables the workaround for the 430973 Cortex-A8
1127 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1128 interworking branch is replaced with another code sequence at the
1129 same virtual address, whether due to self-modifying code or virtual
1130 to physical address re-mapping, Cortex-A8 does not recover from the
1131 stale interworking branch prediction. This results in Cortex-A8
1132 executing the new code sequence in the incorrect ARM or Thumb state.
1133 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1134 and also flushes the branch target cache at every context switch.
1135 Note that setting specific bits in the ACTLR register may not be
1136 available in non-secure mode.
1137
Catalin Marinas855c5512009-04-30 17:06:15 +01001138config ARM_ERRATA_458693
1139 bool "ARM errata: Processor deadlock when a false hazard is created"
1140 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001141 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001142 help
1143 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1144 erratum. For very specific sequences of memory operations, it is
1145 possible for a hazard condition intended for a cache line to instead
1146 be incorrectly associated with a different cache line. This false
1147 hazard might then cause a processor deadlock. The workaround enables
1148 the L1 caching of the NEON accesses and disables the PLD instruction
1149 in the ACTLR register. Note that setting specific bits in the ACTLR
1150 register may not be available in non-secure mode.
1151
Catalin Marinas0516e462009-04-30 17:06:20 +01001152config ARM_ERRATA_460075
1153 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1154 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001155 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001156 help
1157 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1158 erratum. Any asynchronous access to the L2 cache may encounter a
1159 situation in which recent store transactions to the L2 cache are lost
1160 and overwritten with stale memory contents from external memory. The
1161 workaround disables the write-allocate mode for the L2 cache via the
1162 ACTLR register. Note that setting specific bits in the ACTLR register
1163 may not be available in non-secure mode.
1164
Will Deacon9f050272010-09-14 09:51:43 +01001165config ARM_ERRATA_742230
1166 bool "ARM errata: DMB operation may be faulty"
1167 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001168 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001169 help
1170 This option enables the workaround for the 742230 Cortex-A9
1171 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1172 between two write operations may not ensure the correct visibility
1173 ordering of the two writes. This workaround sets a specific bit in
1174 the diagnostic register of the Cortex-A9 which causes the DMB
1175 instruction to behave as a DSB, ensuring the correct behaviour of
1176 the two writes.
1177
Will Deacona672e992010-09-14 09:53:02 +01001178config ARM_ERRATA_742231
1179 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1180 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001181 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001182 help
1183 This option enables the workaround for the 742231 Cortex-A9
1184 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1185 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1186 accessing some data located in the same cache line, may get corrupted
1187 data due to bad handling of the address hazard when the line gets
1188 replaced from one of the CPUs at the same time as another CPU is
1189 accessing it. This workaround sets specific bits in the diagnostic
1190 register of the Cortex-A9 which reduces the linefill issuing
1191 capabilities of the processor.
1192
Jon Medhurst69155792013-06-07 10:35:35 +01001193config ARM_ERRATA_643719
1194 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1195 depends on CPU_V7 && SMP
1196 help
1197 This option enables the workaround for the 643719 Cortex-A9 (prior to
1198 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1199 register returns zero when it should return one. The workaround
1200 corrects this value, ensuring cache maintenance operations which use
1201 it behave as intended and avoiding data corruption.
1202
Will Deaconcdf357f2010-08-05 11:20:51 +01001203config ARM_ERRATA_720789
1204 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001205 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001206 help
1207 This option enables the workaround for the 720789 Cortex-A9 (prior to
1208 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1209 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1210 As a consequence of this erratum, some TLB entries which should be
1211 invalidated are not, resulting in an incoherency in the system page
1212 tables. The workaround changes the TLB flushing routines to invalidate
1213 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001214
1215config ARM_ERRATA_743622
1216 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1217 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001218 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001219 help
1220 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001221 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001222 optimisation in the Cortex-A9 Store Buffer may lead to data
1223 corruption. This workaround sets a specific bit in the diagnostic
1224 register of the Cortex-A9 which disables the Store Buffer
1225 optimisation, preventing the defect from occurring. This has no
1226 visible impact on the overall performance or power consumption of the
1227 processor.
1228
Will Deacon9a27c272011-02-18 16:36:35 +01001229config ARM_ERRATA_751472
1230 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001231 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001232 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001233 help
1234 This option enables the workaround for the 751472 Cortex-A9 (prior
1235 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1236 completion of a following broadcasted operation if the second
1237 operation is received by a CPU before the ICIALLUIS has completed,
1238 potentially leading to corrupted entries in the cache or TLB.
1239
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001240config ARM_ERRATA_754322
1241 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1242 depends on CPU_V7
1243 help
1244 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1245 r3p*) erratum. A speculative memory access may cause a page table walk
1246 which starts prior to an ASID switch but completes afterwards. This
1247 can populate the micro-TLB with a stale entry which may be hit with
1248 the new ASID. This workaround places two dsb instructions in the mm
1249 switching code so that no page table walks can cross the ASID switch.
1250
Will Deacon5dab26af2011-03-04 12:38:54 +01001251config ARM_ERRATA_754327
1252 bool "ARM errata: no automatic Store Buffer drain"
1253 depends on CPU_V7 && SMP
1254 help
1255 This option enables the workaround for the 754327 Cortex-A9 (prior to
1256 r2p0) erratum. The Store Buffer does not have any automatic draining
1257 mechanism and therefore a livelock may occur if an external agent
1258 continuously polls a memory location waiting to observe an update.
1259 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1260 written polling loops from denying visibility of updates to memory.
1261
Catalin Marinas145e10e2011-08-15 11:04:41 +01001262config ARM_ERRATA_364296
1263 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001264 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001265 help
1266 This options enables the workaround for the 364296 ARM1136
1267 r0p2 erratum (possible cache data corruption with
1268 hit-under-miss enabled). It sets the undocumented bit 31 in
1269 the auxiliary control register and the FI bit in the control
1270 register, thus disabling hit-under-miss without putting the
1271 processor into full low interrupt latency mode. ARM11MPCore
1272 is not affected.
1273
Will Deaconf630c1b2011-09-15 11:45:15 +01001274config ARM_ERRATA_764369
1275 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1276 depends on CPU_V7 && SMP
1277 help
1278 This option enables the workaround for erratum 764369
1279 affecting Cortex-A9 MPCore with two or more processors (all
1280 current revisions). Under certain timing circumstances, a data
1281 cache line maintenance operation by MVA targeting an Inner
1282 Shareable memory region may fail to proceed up to either the
1283 Point of Coherency or to the Point of Unification of the
1284 system. This workaround adds a DSB instruction before the
1285 relevant cache maintenance functions and sets a specific bit
1286 in the diagnostic control register of the SCU.
1287
Simon Horman7253b852012-09-28 02:12:45 +01001288config ARM_ERRATA_775420
1289 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1290 depends on CPU_V7
1291 help
1292 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1293 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1294 operation aborts with MMU exception, it might cause the processor
1295 to deadlock. This workaround puts DSB before executing ISB if
1296 an abort may occur on cache maintenance.
1297
Catalin Marinas93dc6882013-03-26 23:35:04 +01001298config ARM_ERRATA_798181
1299 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1300 depends on CPU_V7 && SMP
1301 help
1302 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1303 adequately shooting down all use of the old entries. This
1304 option enables the Linux kernel workaround for this erratum
1305 which sends an IPI to the CPUs that are running the same ASID
1306 as the one being invalidated.
1307
Will Deacon84b65042013-08-20 17:29:55 +01001308config ARM_ERRATA_773022
1309 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1310 depends on CPU_V7
1311 help
1312 This option enables the workaround for the 773022 Cortex-A15
1313 (up to r0p4) erratum. In certain rare sequences of code, the
1314 loop buffer may deliver incorrect instructions. This
1315 workaround disables the loop buffer to avoid the erratum.
1316
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317endmenu
1318
1319source "arch/arm/common/Kconfig"
1320
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321menu "Bus support"
1322
1323config ARM_AMBA
1324 bool
1325
1326config ISA
1327 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 help
1329 Find out whether you have ISA slots on your motherboard. ISA is the
1330 name of a bus system, i.e. the way the CPU talks to the other stuff
1331 inside your box. Other bus systems are PCI, EISA, MicroChannel
1332 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1333 newer boards don't support it. If you have ISA, say Y, otherwise N.
1334
Russell King065909b2006-01-04 15:44:16 +00001335# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336config ISA_DMA
1337 bool
Russell King065909b2006-01-04 15:44:16 +00001338 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339
Russell King065909b2006-01-04 15:44:16 +00001340# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001341config ISA_DMA_API
1342 bool
Al Viro5cae8412005-05-04 05:39:22 +01001343
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001345 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 help
1347 Find out whether you have a PCI motherboard. PCI is the name of a
1348 bus system, i.e. the way the CPU talks to the other stuff inside
1349 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1350 VESA. If you have PCI, say Y, otherwise N.
1351
Anton Vorontsov52882172010-04-19 13:20:49 +01001352config PCI_DOMAINS
1353 bool
1354 depends on PCI
1355
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001356config PCI_NANOENGINE
1357 bool "BSE nanoEngine PCI support"
1358 depends on SA1100_NANOENGINE
1359 help
1360 Enable PCI on the BSE nanoEngine board.
1361
Matthew Wilcox36e23592007-07-10 10:54:40 -06001362config PCI_SYSCALL
1363 def_bool PCI
1364
Mike Rapoporta0113a92007-11-25 08:55:34 +01001365config PCI_HOST_ITE8152
1366 bool
1367 depends on PCI && MACH_ARMCORE
1368 default y
1369 select DMABOUNCE
1370
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001372source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373
1374source "drivers/pcmcia/Kconfig"
1375
1376endmenu
1377
1378menu "Kernel Features"
1379
Dave Martin3b556582011-12-07 15:38:04 +00001380config HAVE_SMP
1381 bool
1382 help
1383 This option should be selected by machines which have an SMP-
1384 capable CPU.
1385
1386 The only effect of this option is to make the SMP-related
1387 options available to the user for configuration.
1388
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001390 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001391 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001392 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001393 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001394 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395 help
1396 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001397 a system with only one CPU, say N. If you have a system with more
1398 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399
Robert Graffham4a474152014-01-23 15:55:29 -08001400 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001402 you say Y here, the kernel will run on many, but not all,
1403 uniprocessor machines. On a uniprocessor machine, the kernel
1404 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405
Paul Bolle395cf962011-08-15 02:02:26 +02001406 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001407 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001408 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409
1410 If you don't know what to do here, say N.
1411
Russell Kingf00ec482010-09-04 10:47:48 +01001412config SMP_ON_UP
1413 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001414 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001415 default y
1416 help
1417 SMP kernels contain instructions which fail on non-SMP processors.
1418 Enabling this option allows the kernel to modify itself to make
1419 these instructions safe. Disabling it allows about 1K of space
1420 savings.
1421
1422 If you don't know what to do here, say Y.
1423
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001424config ARM_CPU_TOPOLOGY
1425 bool "Support cpu topology definition"
1426 depends on SMP && CPU_V7
1427 default y
1428 help
1429 Support ARM cpu topology definition. The MPIDR register defines
1430 affinity between processors which is then used to describe the cpu
1431 topology of an ARM System.
1432
1433config SCHED_MC
1434 bool "Multi-core scheduler support"
1435 depends on ARM_CPU_TOPOLOGY
1436 help
1437 Multi-core scheduler support improves the CPU scheduler's decision
1438 making when dealing with multi-core CPU chips at a cost of slightly
1439 increased overhead in some places. If unsure say N here.
1440
1441config SCHED_SMT
1442 bool "SMT scheduler support"
1443 depends on ARM_CPU_TOPOLOGY
1444 help
1445 Improves the CPU scheduler's decision making when dealing with
1446 MultiThreading at a cost of slightly increased overhead in some
1447 places. If unsure say N here.
1448
Russell Kinga8cbcd92009-05-16 11:51:14 +01001449config HAVE_ARM_SCU
1450 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001451 help
1452 This option enables support for the ARM system coherency unit
1453
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001454config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001455 bool "Architected timer support"
1456 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001457 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001458 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001459 help
1460 This option enables support for the ARM architected timer
1461
Russell Kingf32f4ce2009-05-16 12:14:21 +01001462config HAVE_ARM_TWD
1463 bool
1464 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001465 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001466 help
1467 This options enables support for the ARM timer and watchdog unit
1468
Nicolas Pitree8db2882012-04-12 02:45:22 -04001469config MCPM
1470 bool "Multi-Cluster Power Management"
1471 depends on CPU_V7 && SMP
1472 help
1473 This option provides the common power management infrastructure
1474 for (multi-)cluster based systems, such as big.LITTLE based
1475 systems.
1476
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001477config BIG_LITTLE
1478 bool "big.LITTLE support (Experimental)"
1479 depends on CPU_V7 && SMP
1480 select MCPM
1481 help
1482 This option enables support selections for the big.LITTLE
1483 system architecture.
1484
1485config BL_SWITCHER
1486 bool "big.LITTLE switcher support"
1487 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001488 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001489 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001490 help
1491 The big.LITTLE "switcher" provides the core functionality to
1492 transparently handle transition between a cluster of A15's
1493 and a cluster of A7's in a big.LITTLE system.
1494
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001495config BL_SWITCHER_DUMMY_IF
1496 tristate "Simple big.LITTLE switcher user interface"
1497 depends on BL_SWITCHER && DEBUG_KERNEL
1498 help
1499 This is a simple and dummy char dev interface to control
1500 the big.LITTLE switcher core code. It is meant for
1501 debugging purposes only.
1502
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001503choice
1504 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001505 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001506 default VMSPLIT_3G
1507 help
1508 Select the desired split between kernel and user memory.
1509
1510 If you are not absolutely sure what you are doing, leave this
1511 option alone!
1512
1513 config VMSPLIT_3G
1514 bool "3G/1G user/kernel split"
1515 config VMSPLIT_2G
1516 bool "2G/2G user/kernel split"
1517 config VMSPLIT_1G
1518 bool "1G/3G user/kernel split"
1519endchoice
1520
1521config PAGE_OFFSET
1522 hex
Russell King006fa252014-02-26 19:40:46 +00001523 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001524 default 0x40000000 if VMSPLIT_1G
1525 default 0x80000000 if VMSPLIT_2G
1526 default 0xC0000000
1527
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528config NR_CPUS
1529 int "Maximum number of CPUs (2-32)"
1530 range 2 32
1531 depends on SMP
1532 default "4"
1533
Russell Kinga054a812005-11-02 22:24:33 +00001534config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001535 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001536 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001537 help
1538 Say Y here to experiment with turning CPUs off and on. CPUs
1539 can be controlled through /sys/devices/system/cpu.
1540
Will Deacon2bdd4242012-12-12 19:20:52 +00001541config ARM_PSCI
1542 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1543 depends on CPU_V7
1544 help
1545 Say Y here if you want Linux to communicate with system firmware
1546 implementing the PSCI specification for CPU-centric power
1547 management operations described in ARM document number ARM DEN
1548 0022A ("Power State Coordination Interface System Software on
1549 ARM processors").
1550
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001551# The GPIO number here must be sorted by descending number. In case of
1552# a multiplatform kernel, we just want the highest value required by the
1553# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001554config ARCH_NR_GPIO
1555 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001556 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Linus Walleij41c35482013-12-06 12:46:27 +01001557 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001558 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001559 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001560 default 352 if ARCH_VT8500
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001561 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001562 default 0
1563 help
1564 Maximum number of GPIOs in the system.
1565
1566 If unsure, leave the default value.
1567
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001568source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001569
Russell Kingc9218b12013-04-27 23:31:10 +01001570config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001571 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001572 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001573 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001574 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001575 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001576 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001577
1578choice
Russell King47d84682013-09-10 23:47:55 +01001579 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001580 prompt "Timer frequency"
1581
1582config HZ_100
1583 bool "100 Hz"
1584
1585config HZ_200
1586 bool "200 Hz"
1587
1588config HZ_250
1589 bool "250 Hz"
1590
1591config HZ_300
1592 bool "300 Hz"
1593
1594config HZ_500
1595 bool "500 Hz"
1596
1597config HZ_1000
1598 bool "1000 Hz"
1599
1600endchoice
1601
1602config HZ
1603 int
Russell King47d84682013-09-10 23:47:55 +01001604 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001605 default 100 if HZ_100
1606 default 200 if HZ_200
1607 default 250 if HZ_250
1608 default 300 if HZ_300
1609 default 500 if HZ_500
1610 default 1000
1611
1612config SCHED_HRTICK
1613 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001614
Catalin Marinas16c79652009-07-24 12:33:02 +01001615config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001616 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001617 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001618 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001619 select AEABI
1620 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001621 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001622 help
1623 By enabling this option, the kernel will be compiled in
1624 Thumb-2 mode. A compiler/assembler that understand the unified
1625 ARM-Thumb syntax is needed.
1626
1627 If unsure, say N.
1628
Dave Martin6f685c52011-03-03 11:41:12 +01001629config THUMB2_AVOID_R_ARM_THM_JUMP11
1630 bool "Work around buggy Thumb-2 short branch relocations in gas"
1631 depends on THUMB2_KERNEL && MODULES
1632 default y
1633 help
1634 Various binutils versions can resolve Thumb-2 branches to
1635 locally-defined, preemptible global symbols as short-range "b.n"
1636 branch instructions.
1637
1638 This is a problem, because there's no guarantee the final
1639 destination of the symbol, or any candidate locations for a
1640 trampoline, are within range of the branch. For this reason, the
1641 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1642 relocation in modules at all, and it makes little sense to add
1643 support.
1644
1645 The symptom is that the kernel fails with an "unsupported
1646 relocation" error when loading some modules.
1647
1648 Until fixed tools are available, passing
1649 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1650 code which hits this problem, at the cost of a bit of extra runtime
1651 stack usage in some cases.
1652
1653 The problem is described in more detail at:
1654 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1655
1656 Only Thumb-2 kernels are affected.
1657
1658 Unless you are sure your tools don't have this problem, say Y.
1659
Catalin Marinas0becb082009-07-24 12:32:53 +01001660config ARM_ASM_UNIFIED
1661 bool
1662
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001663config AEABI
1664 bool "Use the ARM EABI to compile the kernel"
1665 help
1666 This option allows for the kernel to be compiled using the latest
1667 ARM ABI (aka EABI). This is only useful if you are using a user
1668 space environment that is also compiled with EABI.
1669
1670 Since there are major incompatibilities between the legacy ABI and
1671 EABI, especially with regard to structure member alignment, this
1672 option also changes the kernel syscall calling convention to
1673 disambiguate both ABIs and allow for backward compatibility support
1674 (selected with CONFIG_OABI_COMPAT).
1675
1676 To use this you need GCC version 4.0.0 or later.
1677
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001678config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001679 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001680 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001681 help
1682 This option preserves the old syscall interface along with the
1683 new (ARM EABI) one. It also provides a compatibility layer to
1684 intercept syscalls that have structure arguments which layout
1685 in memory differs between the legacy ABI and the new ARM EABI
1686 (only for non "thumb" binaries). This option adds a tiny
1687 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001688
1689 The seccomp filter system will not be available when this is
1690 selected, since there is no way yet to sensibly distinguish
1691 between calling conventions during filtering.
1692
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001693 If you know you'll be using only pure EABI user space then you
1694 can say N here. If this option is not selected and you attempt
1695 to execute a legacy ABI binary then the result will be
1696 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001697 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001698
Mel Gormaneb335752009-05-13 17:34:48 +01001699config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001700 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001701
Russell King05944d72006-11-30 20:43:51 +00001702config ARCH_SPARSEMEM_ENABLE
1703 bool
1704
Russell King07a2f732008-10-01 21:39:58 +01001705config ARCH_SPARSEMEM_DEFAULT
1706 def_bool ARCH_SPARSEMEM_ENABLE
1707
Russell King05944d72006-11-30 20:43:51 +00001708config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001709 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001710
Will Deacon7b7bf492011-05-19 13:21:14 +01001711config HAVE_ARCH_PFN_VALID
1712 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1713
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001714config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001715 bool "High Memory Support"
1716 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001717 help
1718 The address space of ARM processors is only 4 Gigabytes large
1719 and it has to accommodate user address space, kernel address
1720 space as well as some memory mapped IO. That means that, if you
1721 have a large amount of physical memory and/or IO, not all of the
1722 memory can be "permanently mapped" by the kernel. The physical
1723 memory that is not permanently mapped is called "high memory".
1724
1725 Depending on the selected kernel/user memory split, minimum
1726 vmalloc space and actual amount of RAM, you may not need this
1727 option which should result in a slightly faster kernel.
1728
1729 If unsure, say n.
1730
Russell King65cec8e2009-08-17 20:02:06 +01001731config HIGHPTE
1732 bool "Allocate 2nd-level pagetables from highmem"
1733 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001734
Jamie Iles1b8873a2010-02-02 20:25:44 +01001735config HW_PERF_EVENTS
1736 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001737 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001738 default y
1739 help
1740 Enable hardware performance counter support for perf events. If
1741 disabled, perf events will use software events only.
1742
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001743config SYS_SUPPORTS_HUGETLBFS
1744 def_bool y
1745 depends on ARM_LPAE
1746
Catalin Marinas8d962502012-07-25 14:39:26 +01001747config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1748 def_bool y
1749 depends on ARM_LPAE
1750
Steven Capper4bfab202013-07-26 14:58:22 +01001751config ARCH_WANT_GENERAL_HUGETLB
1752 def_bool y
1753
Dave Hansen3f22ab22005-06-23 00:07:43 -07001754source "mm/Kconfig"
1755
Magnus Dammc1b2d972010-07-05 10:00:11 +01001756config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001757 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1758 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001759 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001760 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001761 default "11"
1762 help
1763 The kernel memory allocator divides physically contiguous memory
1764 blocks into "zones", where each zone is a power of two number of
1765 pages. This option selects the largest power of two that the kernel
1766 keeps in the memory allocator. If you need to allocate very large
1767 blocks of physically contiguous memory, then you may need to
1768 increase this value.
1769
1770 This config option is actually maximum order plus one. For example,
1771 a value of 11 means that the largest free memory block is 2^10 pages.
1772
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773config ALIGNMENT_TRAP
1774 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001775 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001777 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001779 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1781 address divisible by 4. On 32-bit ARM processors, these non-aligned
1782 fetch/store instructions will be emulated in software if you say
1783 here, which has a severe performance impact. This is necessary for
1784 correct operation of some network protocols. With an IP-only
1785 configuration it is safe to say N, otherwise say Y.
1786
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001787config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001788 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1789 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001790 default y if CPU_FEROCEON
1791 help
1792 Implement faster copy_to_user and clear_user methods for CPU
1793 cores where a 8-word STM instruction give significantly higher
1794 memory write throughput than a sequence of individual 32bit stores.
1795
1796 A possible side effect is a slight increase in scheduling latency
1797 between threads sharing the same address space if they invoke
1798 such copy operations with large buffers.
1799
1800 However, if the CPU data cache is using a write-allocate mode,
1801 this option is unlikely to provide any performance gain.
1802
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001803config SECCOMP
1804 bool
1805 prompt "Enable seccomp to safely compute untrusted bytecode"
1806 ---help---
1807 This kernel feature is useful for number crunching applications
1808 that may need to compute untrusted bytecode during their
1809 execution. By using pipes or other transports made available to
1810 the process as file descriptors supporting the read/write
1811 syscalls, it's possible to isolate those applications in
1812 their own address space using seccomp. Once seccomp is
1813 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1814 and the task is only allowed to execute a few safe syscalls
1815 defined by each seccomp mode.
1816
Stefano Stabellini06e62952013-10-15 15:47:14 +00001817config SWIOTLB
1818 def_bool y
1819
1820config IOMMU_HELPER
1821 def_bool SWIOTLB
1822
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001823config XEN_DOM0
1824 def_bool y
1825 depends on XEN
1826
1827config XEN
1828 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001829 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001830 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001831 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001832 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001833 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001834 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001835 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001836 help
1837 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1838
Linus Torvalds1da177e2005-04-16 15:20:36 -07001839endmenu
1840
1841menu "Boot options"
1842
Grant Likely9eb8f672011-04-28 14:27:20 -06001843config USE_OF
1844 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001845 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001846 select OF
1847 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001848 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001849 help
1850 Include support for flattened device tree machine descriptions.
1851
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001852config ATAGS
1853 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1854 default y
1855 help
1856 This is the traditional way of passing data to the kernel at boot
1857 time. If you are solely relying on the flattened device tree (or
1858 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1859 to remove ATAGS support from your kernel binary. If unsure,
1860 leave this to y.
1861
1862config DEPRECATED_PARAM_STRUCT
1863 bool "Provide old way to pass kernel parameters"
1864 depends on ATAGS
1865 help
1866 This was deprecated in 2001 and announced to live on for 5 years.
1867 Some old boot loaders still use this way.
1868
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869# Compressed boot loader in ROM. Yes, we really want to ask about
1870# TEXT and BSS so we preserve their values in the config files.
1871config ZBOOT_ROM_TEXT
1872 hex "Compressed ROM boot loader base address"
1873 default "0"
1874 help
1875 The physical address at which the ROM-able zImage is to be
1876 placed in the target. Platforms which normally make use of
1877 ROM-able zImage formats normally set this to a suitable
1878 value in their defconfig file.
1879
1880 If ZBOOT_ROM is not enabled, this has no effect.
1881
1882config ZBOOT_ROM_BSS
1883 hex "Compressed ROM boot loader BSS address"
1884 default "0"
1885 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001886 The base address of an area of read/write memory in the target
1887 for the ROM-able zImage which must be available while the
1888 decompressor is running. It must be large enough to hold the
1889 entire decompressed kernel plus an additional 128 KiB.
1890 Platforms which normally make use of ROM-able zImage formats
1891 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001892
1893 If ZBOOT_ROM is not enabled, this has no effect.
1894
1895config ZBOOT_ROM
1896 bool "Compressed boot loader in ROM/flash"
1897 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001898 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899 help
1900 Say Y here if you intend to execute your compressed kernel image
1901 (zImage) directly from ROM or flash. If unsure, say N.
1902
Simon Horman090ab3f2011-04-26 06:29:53 +01001903choice
1904 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001905 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001906 default ZBOOT_ROM_NONE
1907 help
1908 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001909 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001910 kernel image to an MMC or SD card and boot the kernel straight
1911 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001912 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001913 rest the kernel image to RAM.
1914
1915config ZBOOT_ROM_NONE
1916 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1917 help
1918 Do not load image from SD or MMC
1919
Simon Hormanf45b1142011-01-11 04:01:08 +01001920config ZBOOT_ROM_MMCIF
1921 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001922 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001923 Load image from MMCIF hardware block.
1924
1925config ZBOOT_ROM_SH_MOBILE_SDHI
1926 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1927 help
1928 Load image from SDHI hardware block
1929
1930endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001931
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001932config ARM_APPENDED_DTB
1933 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001934 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001935 help
1936 With this option, the boot code will look for a device tree binary
1937 (DTB) appended to zImage
1938 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1939
1940 This is meant as a backward compatibility convenience for those
1941 systems with a bootloader that can't be upgraded to accommodate
1942 the documented boot protocol using a device tree.
1943
1944 Beware that there is very little in terms of protection against
1945 this option being confused by leftover garbage in memory that might
1946 look like a DTB header after a reboot if no actual DTB is appended
1947 to zImage. Do not leave this option active in a production kernel
1948 if you don't intend to always append a DTB. Proper passing of the
1949 location into r2 of a bootloader provided DTB is always preferable
1950 to this option.
1951
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001952config ARM_ATAG_DTB_COMPAT
1953 bool "Supplement the appended DTB with traditional ATAG information"
1954 depends on ARM_APPENDED_DTB
1955 help
1956 Some old bootloaders can't be updated to a DTB capable one, yet
1957 they provide ATAGs with memory configuration, the ramdisk address,
1958 the kernel cmdline string, etc. Such information is dynamically
1959 provided by the bootloader and can't always be stored in a static
1960 DTB. To allow a device tree enabled kernel to be used with such
1961 bootloaders, this option allows zImage to extract the information
1962 from the ATAG list and store it at run time into the appended DTB.
1963
Genoud Richardd0f34a112012-06-26 16:37:59 +01001964choice
1965 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1966 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1967
1968config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1969 bool "Use bootloader kernel arguments if available"
1970 help
1971 Uses the command-line options passed by the boot loader instead of
1972 the device tree bootargs property. If the boot loader doesn't provide
1973 any, the device tree bootargs property will be used.
1974
1975config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1976 bool "Extend with bootloader kernel arguments"
1977 help
1978 The command-line arguments provided by the boot loader will be
1979 appended to the the device tree bootargs property.
1980
1981endchoice
1982
Linus Torvalds1da177e2005-04-16 15:20:36 -07001983config CMDLINE
1984 string "Default kernel command string"
1985 default ""
1986 help
1987 On some architectures (EBSA110 and CATS), there is currently no way
1988 for the boot loader to pass arguments to the kernel. For these
1989 architectures, you should supply some command-line options at build
1990 time by entering them here. As a minimum, you should specify the
1991 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1992
Victor Boivie4394c122011-05-04 17:07:55 +01001993choice
1994 prompt "Kernel command line type" if CMDLINE != ""
1995 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001996 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001997
1998config CMDLINE_FROM_BOOTLOADER
1999 bool "Use bootloader kernel arguments if available"
2000 help
2001 Uses the command-line options passed by the boot loader. If
2002 the boot loader doesn't provide any, the default kernel command
2003 string provided in CMDLINE will be used.
2004
2005config CMDLINE_EXTEND
2006 bool "Extend bootloader kernel arguments"
2007 help
2008 The command-line arguments provided by the boot loader will be
2009 appended to the default kernel command string.
2010
Alexander Holler92d20402010-02-16 19:04:53 +01002011config CMDLINE_FORCE
2012 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002013 help
2014 Always use the default kernel command string, even if the boot
2015 loader passes other arguments to the kernel.
2016 This is useful if you cannot or don't want to change the
2017 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002018endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002019
Linus Torvalds1da177e2005-04-16 15:20:36 -07002020config XIP_KERNEL
2021 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00002022 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002023 help
2024 Execute-In-Place allows the kernel to run from non-volatile storage
2025 directly addressable by the CPU, such as NOR flash. This saves RAM
2026 space since the text section of the kernel is not loaded from flash
2027 to RAM. Read-write sections, such as the data section and stack,
2028 are still copied to RAM. The XIP kernel is not compressed since
2029 it has to run directly from flash, so it will take more space to
2030 store it. The flash address used to link the kernel object files,
2031 and for storing it, is configuration dependent. Therefore, if you
2032 say Y here, you must know the proper physical address where to
2033 store the kernel image depending on your own flash memory usage.
2034
2035 Also note that the make target becomes "make xipImage" rather than
2036 "make zImage" or "make Image". The final kernel binary to put in
2037 ROM memory will be arch/arm/boot/xipImage.
2038
2039 If unsure, say N.
2040
2041config XIP_PHYS_ADDR
2042 hex "XIP Kernel Physical Location"
2043 depends on XIP_KERNEL
2044 default "0x00080000"
2045 help
2046 This is the physical address in your flash memory the kernel will
2047 be linked for and stored to. This address is dependent on your
2048 own flash usage.
2049
Richard Purdiec587e4a2007-02-06 21:29:00 +01002050config KEXEC
2051 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002052 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002053 help
2054 kexec is a system call that implements the ability to shutdown your
2055 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002056 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002057 you can start any kernel with it, not just Linux.
2058
2059 It is an ongoing process to be certain the hardware in a machine
2060 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002061 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002062
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002063config ATAGS_PROC
2064 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002065 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002066 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002067 help
2068 Should the atags used to boot the kernel be exported in an "atags"
2069 file in procfs. Useful with kexec.
2070
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002071config CRASH_DUMP
2072 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002073 help
2074 Generate crash dump after being started by kexec. This should
2075 be normally only set in special crash dump kernels which are
2076 loaded in the main kernel with kexec-tools into a specially
2077 reserved region and then later executed after a crash by
2078 kdump/kexec. The crash dump kernel must be compiled to a
2079 memory address not used by the main kernel
2080
2081 For more details see Documentation/kdump/kdump.txt
2082
Eric Miaoe69edc792010-07-05 15:56:50 +02002083config AUTO_ZRELADDR
2084 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002085 help
2086 ZRELADDR is the physical address where the decompressed kernel
2087 image will be placed. If AUTO_ZRELADDR is selected, the address
2088 will be determined at run-time by masking the current IP with
2089 0xf8000000. This assumes the zImage being placed in the first 128MB
2090 from start of memory.
2091
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092endmenu
2093
Russell Kingac9d7ef2008-08-18 17:26:00 +01002094menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097
Russell Kingac9d7ef2008-08-18 17:26:00 +01002098source "drivers/cpuidle/Kconfig"
2099
2100endmenu
2101
Linus Torvalds1da177e2005-04-16 15:20:36 -07002102menu "Floating point emulation"
2103
2104comment "At least one emulation must be selected"
2105
2106config FPE_NWFPE
2107 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002108 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109 ---help---
2110 Say Y to include the NWFPE floating point emulator in the kernel.
2111 This is necessary to run most binaries. Linux does not currently
2112 support floating point hardware so you need to say Y here even if
2113 your machine has an FPA or floating point co-processor podule.
2114
2115 You may say N here if you are going to load the Acorn FPEmulator
2116 early in the bootup.
2117
2118config FPE_NWFPE_XP
2119 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002120 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 help
2122 Say Y to include 80-bit support in the kernel floating-point
2123 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2124 Note that gcc does not generate 80-bit operations by default,
2125 so in most cases this option only enlarges the size of the
2126 floating point emulator without any good reason.
2127
2128 You almost surely want to say N here.
2129
2130config FPE_FASTFPE
2131 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002132 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133 ---help---
2134 Say Y here to include the FAST floating point emulator in the kernel.
2135 This is an experimental much faster emulator which now also has full
2136 precision for the mantissa. It does not support any exceptions.
2137 It is very simple, and approximately 3-6 times faster than NWFPE.
2138
2139 It should be sufficient for most programs. It may be not suitable
2140 for scientific calculations, but you have to check this for yourself.
2141 If you do not feel you need a faster FP emulation you should better
2142 choose NWFPE.
2143
2144config VFP
2145 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002146 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147 help
2148 Say Y to include VFP support code in the kernel. This is needed
2149 if your hardware includes a VFP unit.
2150
2151 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2152 release notes and additional status information.
2153
2154 Say N if your target does not have VFP hardware.
2155
Catalin Marinas25ebee02007-09-25 15:22:24 +01002156config VFPv3
2157 bool
2158 depends on VFP
2159 default y if CPU_V7
2160
Catalin Marinasb5872db2008-01-10 19:16:17 +01002161config NEON
2162 bool "Advanced SIMD (NEON) Extension support"
2163 depends on VFPv3 && CPU_V7
2164 help
2165 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2166 Extension.
2167
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002168config KERNEL_MODE_NEON
2169 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002170 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002171 help
2172 Say Y to include support for NEON in kernel mode.
2173
Linus Torvalds1da177e2005-04-16 15:20:36 -07002174endmenu
2175
2176menu "Userspace binary formats"
2177
2178source "fs/Kconfig.binfmt"
2179
2180config ARTHUR
2181 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002182 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002183 help
2184 Say Y here to include the kernel code necessary if you want to run
2185 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2186 experimental; if this sounds frightening, say N and sleep in peace.
2187 You can also say M here to compile this support as a module (which
2188 will be called arthur).
2189
2190endmenu
2191
2192menu "Power management options"
2193
Russell Kingeceab4a2005-11-15 11:31:41 +00002194source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002195
Johannes Bergf4cb5702007-12-08 02:14:00 +01002196config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002197 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002198 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002199 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002200 def_bool y
2201
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002202config ARM_CPU_SUSPEND
2203 def_bool PM_SLEEP
2204
Sebastian Capella603fb422014-03-25 01:20:29 +01002205config ARCH_HIBERNATION_POSSIBLE
2206 bool
2207 depends on MMU
2208 default y if ARCH_SUSPEND_POSSIBLE
2209
Linus Torvalds1da177e2005-04-16 15:20:36 -07002210endmenu
2211
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002212source "net/Kconfig"
2213
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002214source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215
2216source "fs/Kconfig"
2217
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218source "arch/arm/Kconfig.debug"
2219
2220source "security/Kconfig"
2221
2222source "crypto/Kconfig"
2223
2224source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002225
2226source "arch/arm/kvm/Kconfig"