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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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
Ben Dooks89c52ed2009-07-30 23:23:24 +0100178config ARCH_HAS_CPUFREQ
179 bool
180 help
181 Internal node to signify that the ARCH has CPUFREQ support
182 and that the relevant menu configurations are displayed for
183 it.
184
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100185config ARCH_HAS_BANDGAP
186 bool
187
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800188config GENERIC_HWEIGHT
189 bool
190 default y
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192config GENERIC_CALIBRATE_DELAY
193 bool
194 default y
195
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100196config ARCH_MAY_HAVE_PC_FDC
197 bool
198
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800199config ZONE_DMA
200 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800201
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800202config NEED_DMA_MAP_STATE
203 def_bool y
204
David A. Longc7edc9e2014-03-07 11:23:04 -0500205config ARCH_SUPPORTS_UPROBES
206 def_bool y
207
Rob Herring58af4a22012-03-20 14:33:01 -0500208config ARCH_HAS_DMA_SET_COHERENT_MASK
209 bool
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211config GENERIC_ISA_DMA
212 bool
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214config FIQ
215 bool
216
Rob Herring13a50452012-02-07 09:28:22 -0600217config NEED_RET_TO_USER
218 bool
219
Al Viro034d2f52005-12-19 16:27:59 -0500220config ARCH_MTD_XIP
221 bool
222
Hyok S. Choic760fc12006-03-27 15:18:50 +0100223config VECTORS_BASE
224 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900225 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100226 default DRAM_BASE if REMAP_VECTORS_TO_RAM
227 default 0x00000000
228 help
Russell King19accfd2013-07-04 11:40:32 +0100229 The base address of exception vectors. This must be two pages
230 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100231
Russell Kingdc21af92011-01-04 19:09:43 +0000232config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100233 bool "Patch physical to virtual translations at runtime" if EMBEDDED
234 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100235 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000236 depends on !ARCH_REALVIEW || !SPARSEMEM
237 help
Russell King111e9a52011-05-12 10:02:42 +0100238 Patch phys-to-virt and virt-to-phys translation functions at
239 boot and module load time according to the position of the
240 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000241
Russell King111e9a52011-05-12 10:02:42 +0100242 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100243 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000244
Russell Kingc1beced2011-08-10 10:23:45 +0100245 Only disable this option if you know that you do not require
246 this feature (eg, building a kernel for a single machine) and
247 you need to shrink the kernel to the minimal size.
248
Rob Herring01464222012-08-28 13:06:41 -0500249config NEED_MACH_GPIO_H
250 bool
251 help
252 Select this when mach/gpio.h is required to provide special
253 definitions for this platform. The need for mach/gpio.h should
254 be avoided when possible.
255
Rob Herringc334bc12012-03-04 22:03:33 -0600256config NEED_MACH_IO_H
257 bool
258 help
259 Select this when mach/io.h is required to provide special
260 definitions for this platform. The need for mach/io.h should
261 be avoided when possible.
262
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400263config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400264 bool
Russell King111e9a52011-05-12 10:02:42 +0100265 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400266 Select this when mach/memory.h is required to provide special
267 definitions for this platform. The need for mach/memory.h should
268 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400269
270config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100271 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400272 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100273 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400274 help
275 Please provide the physical address corresponding to the
276 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000277
Simon Glass87e040b2011-08-16 23:44:26 +0100278config GENERIC_BUG
279 def_bool y
280 depends on BUG
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282source "init/Kconfig"
283
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700284source "kernel/Kconfig.freezer"
285
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286menu "System Type"
287
Hyok S. Choi3c427972009-07-24 12:35:00 +0100288config MMU
289 bool "MMU-based Paged Memory Management Support"
290 default y
291 help
292 Select if you want MMU-based virtualised addressing space
293 support by paged memory management. If unsure, say 'Y'.
294
Russell Kingccf50e22010-03-15 19:03:06 +0000295#
296# The "ARM system type" choice list is ordered alphabetically by option
297# text. Please add new entries in the option alphabetic order.
298#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299choice
300 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100301 default ARCH_VERSATILE if !MMU
302 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303
Rob Herring387798b2012-09-06 13:41:12 -0500304config ARCH_MULTIPLATFORM
305 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100306 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600307 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700308 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500309 select ARM_PATCH_PHYS_VIRT
310 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500311 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600312 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600313 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100314 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500315 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600316 select SPARSE_IRQ
317 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600318
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319config ARCH_INTEGRATOR
320 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100321 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100322 select ARM_AMBA
panchaxarife989142013-12-02 16:58:51 +0530323 select ARM_PATCH_PHYS_VIRT
324 select AUTO_ZRELADDR
Linus Walleija6131632012-06-11 17:33:12 +0200325 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200326 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100327 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100328 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000329 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100330 select MULTI_IRQ_HANDLER
331 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000332 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100333 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200334 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100335 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 help
337 Support for ARM's Integrator platform.
338
339config ARCH_REALVIEW
340 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100341 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100342 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100343 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200344 select COMMON_CLK
345 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100346 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100347 select GPIO_PL061 if GPIOLIB
348 select ICST
349 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000350 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000351 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352 help
353 This enables support for ARM Ltd RealView boards.
354
355config ARCH_VERSATILE
356 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100357 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100359 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100361 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100362 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900363 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000364 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000365 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000366 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100367 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100368 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369 help
370 This enables support for ARM Ltd Versatile board.
371
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100372config ARCH_AT91
373 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100374 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100375 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100376 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500377 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800378 select PINCTRL
379 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100381 This enables support for systems based on Atmel
382 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100383
Russell King93e22562012-10-12 14:20:52 +0100384config ARCH_CLPS711X
385 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400386 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400387 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400388 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100389 select COMMON_CLK
390 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400391 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400392 select MFD_SYSCON
Russell King93e22562012-10-12 14:20:52 +0100393 help
394 Support for Cirrus Logic 711x/721x/731x based boards.
395
Russell King788c9702009-04-26 14:21:59 +0100396config ARCH_GEMINI
397 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100398 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200399 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100400 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200401 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100402 help
403 Support for the Cortina Systems Gemini family SoCs
404
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405config ARCH_EBSA110
406 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100407 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000408 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100409 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600410 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400411 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700412 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 help
414 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000415 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 Ethernet interface, two PCMCIA sockets, two serial ports and a
417 parallel port.
418
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100419config ARCH_EFM32
420 bool "Energy Micro efm32"
421 depends on !MMU
422 select ARCH_REQUIRE_GPIOLIB
423 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100424 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100425 select CLKSRC_OF
426 select COMMON_CLK
427 select CPU_V7M
428 select GENERIC_CLOCKEVENTS
429 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700430 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100431 select SPARSE_IRQ
432 select USE_OF
433 help
434 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
435 processors.
436
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000437config ARCH_EP93XX
438 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100439 select ARCH_HAS_HOLES_MEMORYMODEL
440 select ARCH_REQUIRE_GPIOLIB
441 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000442 select ARM_AMBA
443 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100444 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100445 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100446 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000447 help
448 This enables support for the Cirrus EP93xx series of CPUs.
449
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450config ARCH_FOOTBRIDGE
451 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000452 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000454 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200455 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600456 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400457 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000458 help
459 Support for systems based on the DC21285 companion chip
460 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100462config ARCH_NETX
463 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100464 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100465 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100467 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000468 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100469 This enables support for systems based on the Hilscher NetX Soc
470
Russell King3b938be2007-05-12 11:25:44 +0100471config ARCH_IOP13XX
472 bool "IOP13xx-based"
473 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100474 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400475 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600476 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100477 select PCI
478 select PLAT_IOP
479 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000480 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100481 help
482 Support for Intel's IOP13XX (XScale) family of processors.
483
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100484config ARCH_IOP32X
485 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100486 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100487 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000488 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200489 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600490 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100491 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100492 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000493 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100494 Support for Intel's 80219 and IOP32X (XScale) family of
495 processors.
496
497config ARCH_IOP33X
498 bool "IOP33x-based"
499 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100500 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000501 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200502 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600503 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100504 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100505 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100506 help
507 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508
Russell King3b938be2007-05-12 11:25:44 +0100509config ARCH_IXP4XX
510 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100511 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500512 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100513 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100514 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100515 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000516 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100517 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100518 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100519 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600520 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200521 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100522 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100523 help
Russell King3b938be2007-05-12 11:25:44 +0100524 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100525
Saeed Bisharaedabd382009-08-06 15:12:43 +0300526config ARCH_DOVE
527 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300528 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100529 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300530 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100531 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100532 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100533 select PINCTRL
534 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200535 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300536 help
537 Support for the Marvell Dove SoC 88AP510
538
Saeed Bishara651c74c2008-06-22 22:45:06 +0200539config ARCH_KIRKWOOD
540 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100541 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700542 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100543 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200544 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100545 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100546 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700547 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100548 select PINCTRL
549 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200550 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200551 help
552 Support for the following Marvell Kirkwood series SoCs:
553 88F6180, 88F6192 and 88F6281.
554
Russell King788c9702009-04-26 14:21:59 +0100555config ARCH_MV78XX0
556 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700557 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100558 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100559 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100560 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100561 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200562 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100563 help
564 Support for the following Marvell MV78xx0 series SoCs:
565 MV781x0, MV782x0.
566
567config ARCH_ORION5X
568 bool "Marvell Orion"
569 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700570 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100571 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100572 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100573 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200575 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100576 help
577 Support for the following Marvell Orion 5x series SoCs:
578 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
579 Orion-2 (5281), Orion-1-90 (6183).
580
581config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500582 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100583 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100584 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100585 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100586 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100587 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800588 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800589 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800590 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800591 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100592 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400593 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100594 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500595 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100596
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100597config ARCH_KS8695
598 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100599 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200600 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100601 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200602 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100603 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100604 help
605 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
606 System-on-Chip devices.
607
Russell King788c9702009-04-26 14:21:59 +0100608config ARCH_W90X900
609 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100610 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100611 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100612 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100613 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100614 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200615 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100616 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
617 At present, the w90x900 has been renamed nuc900, regarding
618 the ARM series product line, you can login the following
619 link address to know more.
620
621 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
622 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400623
Russell King93e22562012-10-12 14:20:52 +0100624config ARCH_LPC32XX
625 bool "NXP LPC32XX"
626 select ARCH_REQUIRE_GPIOLIB
627 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000628 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100629 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100630 select CPU_ARM926T
631 select GENERIC_CLOCKEVENTS
632 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100633 select USE_OF
634 help
635 Support for the NXP LPC32XX family of processors
636
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700638 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100639 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100640 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select ARCH_MTD_XIP
642 select ARCH_REQUIRE_GPIOLIB
643 select ARM_CPU_SUSPEND if PM
644 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100645 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100646 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100647 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800648 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100649 select HAVE_IDE
650 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800651 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800652 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000653 help
eric miao2c8086a2007-09-11 19:13:17 -0700654 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600656config ARCH_MSM
657 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700658 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700659 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100660 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800661 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800662 Support for Qualcomm MSM/QSD based systems. This runs on the
663 apps processor of the MSM/QSD and depends on a shared memory
664 interface to the modem processor which runs the baseband
665 stack and controls some vital subsystems
666 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800667
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100668config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100669 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100670 select ARCH_SHMOBILE
Magnus Damm69469992013-06-10 18:46:47 +0900671 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900672 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800674 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800675 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900676 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000677 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000678 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000679 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700680 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200681 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100682 select PM_GENERIC_DOMAINS if PM
683 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000684 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100685 Support for Renesas ARM SoC platforms using a non-multiplatform
686 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
687 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000688
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689config ARCH_RPC
690 bool "RiscPC"
691 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100692 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100693 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000694 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100695 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100696 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200697 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100698 select HAVE_PATA_PLATFORM
699 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600700 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400701 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700702 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100703 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 help
705 On the Acorn Risc-PC, Linux can support the internal IDE disk and
706 CD-ROM interface, serial and parallel port, and the floppy drive.
707
708config ARCH_SA1100
709 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100710 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100711 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700712 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100713 select ARCH_SPARSEMEM_ENABLE
714 select CLKDEV_LOOKUP
715 select CLKSRC_MMIO
716 select CPU_FREQ
717 select CPU_SA1100
718 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200719 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100720 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400721 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100722 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000723 help
724 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900726config ARCH_S3C24XX
727 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100728 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900729 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100730 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200732 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800733 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900734 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900735 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900736 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900738 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600739 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900740 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900742 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
743 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
744 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
745 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900746
Ben Dooksa08ab632008-10-21 14:06:39 +0100747config ARCH_S3C64XX
748 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100749 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900750 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200751 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100752 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100753 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100754 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200755 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900756 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900757 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800758 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900759 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900760 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900761 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100762 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700763 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100764 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100765 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select S3C_DEV_NAND
767 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900768 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900769 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900770 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100771 help
772 Samsung S3C64XX series based systems
773
Kukjin Kim49b7a492010-09-07 15:47:18 +0900774config ARCH_S5P64X0
775 bool "Samsung S5P6440 S5P6450"
Arnd Bergmann335cce72014-03-13 14:11:16 +0100776 select ATAGS
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900777 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200778 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100779 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900780 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900781 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900782 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900784 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500785 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900786 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100787 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900788 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900789 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
790 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900791
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200792config ARCH_S5PC100
793 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900794 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100795 select ATAGS
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900796 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200797 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900798 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800799 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900800 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900801 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900802 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500804 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900805 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100806 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900807 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200808 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900809
Kukjin Kim170f4e42010-02-24 16:40:44 +0900810config ARCH_S5PV210
811 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100812 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900813 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100814 select ARCH_SPARSEMEM_ENABLE
Arnd Bergmann335cce72014-03-13 14:11:16 +0100815 select ATAGS
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900816 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200817 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900819 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900820 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900821 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900822 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100823 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500824 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400825 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900826 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900827 help
828 Samsung S5PV210/S5PC110 series based systems
829
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100830config ARCH_DAVINCI
831 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100832 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700833 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100834 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700835 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100836 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100837 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100838 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500839 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530840 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100841 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100842 help
843 Support for TI's DaVinci platform.
844
Tony Lindgrena0694862013-01-11 11:24:20 -0800845config ARCH_OMAP1
846 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600847 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100848 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100849 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800850 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100851 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200852 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100853 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100854 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800855 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800856 select HAVE_IDE
857 select IRQ_DOMAIN
858 select NEED_MACH_IO_H if PCCARD
859 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100860 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800861 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863endchoice
864
Rob Herring387798b2012-09-06 13:41:12 -0500865menu "Multiple platform selection"
866 depends on ARCH_MULTIPLATFORM
867
868comment "CPU Core family selection"
869
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100870config ARCH_MULTI_V4
871 bool "ARMv4 based platforms (FA526)"
872 depends on !ARCH_MULTI_V6_V7
873 select ARCH_MULTI_V4_V5
874 select CPU_FA526
875
Rob Herring387798b2012-09-06 13:41:12 -0500876config ARCH_MULTI_V4T
877 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500878 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100879 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200880 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
881 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
882 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500883
884config ARCH_MULTI_V5
885 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500886 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100887 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100888 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200889 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
890 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500891
892config ARCH_MULTI_V4_V5
893 bool
894
895config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800896 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500897 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600898 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500899
900config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800901 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500902 default y
903 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100904 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600905 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500906
907config ARCH_MULTI_V6_V7
908 bool
Rob Herring9352b052014-01-31 15:36:10 -0600909 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500910
911config ARCH_MULTI_CPU_AUTO
912 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
913 select ARCH_MULTI_V5
914
915endmenu
916
Rob Herring05e2a3d2013-12-05 10:04:54 -0600917config ARCH_VIRT
918 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600919 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600920 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600921 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600922 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600923
Russell Kingccf50e22010-03-15 19:03:06 +0000924#
925# This is sorted alphabetically by mach-* pathname. However, plat-*
926# Kconfigs may be included either alphabetically (according to the
927# plat- suffix) or along side the corresponding mach-* source.
928#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200929source "arch/arm/mach-mvebu/Kconfig"
930
Russell King95b8f202010-01-14 11:43:54 +0000931source "arch/arm/mach-at91/Kconfig"
932
Anders Berg1d22924e2014-05-23 11:08:35 +0200933source "arch/arm/mach-axxia/Kconfig"
934
Christian Daudt8ac49e02012-11-19 09:46:10 -0800935source "arch/arm/mach-bcm/Kconfig"
936
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200937source "arch/arm/mach-berlin/Kconfig"
938
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939source "arch/arm/mach-clps711x/Kconfig"
940
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300941source "arch/arm/mach-cns3xxx/Kconfig"
942
Russell King95b8f202010-01-14 11:43:54 +0000943source "arch/arm/mach-davinci/Kconfig"
944
945source "arch/arm/mach-dove/Kconfig"
946
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000947source "arch/arm/mach-ep93xx/Kconfig"
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949source "arch/arm/mach-footbridge/Kconfig"
950
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200951source "arch/arm/mach-gemini/Kconfig"
952
Rob Herring387798b2012-09-06 13:41:12 -0500953source "arch/arm/mach-highbank/Kconfig"
954
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800955source "arch/arm/mach-hisi/Kconfig"
956
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957source "arch/arm/mach-integrator/Kconfig"
958
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100959source "arch/arm/mach-iop32x/Kconfig"
960
961source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Dan Williams285f5fa2006-12-07 02:59:39 +0100963source "arch/arm/mach-iop13xx/Kconfig"
964
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965source "arch/arm/mach-ixp4xx/Kconfig"
966
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400967source "arch/arm/mach-keystone/Kconfig"
968
Russell King95b8f202010-01-14 11:43:54 +0000969source "arch/arm/mach-kirkwood/Kconfig"
970
971source "arch/arm/mach-ks8695/Kconfig"
972
Russell King95b8f202010-01-14 11:43:54 +0000973source "arch/arm/mach-msm/Kconfig"
974
Jonas Jensen17723fd32013-12-18 13:58:45 +0100975source "arch/arm/mach-moxart/Kconfig"
976
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200977source "arch/arm/mach-mv78xx0/Kconfig"
978
Shawn Guo3995eb82012-09-13 19:48:07 +0800979source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800981source "arch/arm/mach-mxs/Kconfig"
982
Russell King95b8f202010-01-14 11:43:54 +0000983source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800984
Russell King95b8f202010-01-14 11:43:54 +0000985source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000986
Daniel Tang9851ca52013-06-11 18:40:17 +1000987source "arch/arm/mach-nspire/Kconfig"
988
Tony Lindgrend48af152005-07-10 19:58:17 +0100989source "arch/arm/plat-omap/Kconfig"
990
991source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
Tony Lindgren1dbae812005-11-10 14:26:51 +0000993source "arch/arm/mach-omap2/Kconfig"
994
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400995source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400996
Rob Herring387798b2012-09-06 13:41:12 -0500997source "arch/arm/mach-picoxcell/Kconfig"
998
Russell King95b8f202010-01-14 11:43:54 +0000999source "arch/arm/mach-pxa/Kconfig"
1000source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001
Russell King95b8f202010-01-14 11:43:54 +00001002source "arch/arm/mach-mmp/Kconfig"
1003
Kumar Gala8fc1b0f2014-01-21 17:14:10 -06001004source "arch/arm/mach-qcom/Kconfig"
1005
Russell King95b8f202010-01-14 11:43:54 +00001006source "arch/arm/mach-realview/Kconfig"
1007
Heiko Stuebnerd63dc052013-06-02 23:09:41 +02001008source "arch/arm/mach-rockchip/Kconfig"
1009
Russell King95b8f202010-01-14 11:43:54 +00001010source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +03001011
Ben Dookscf383672009-11-10 00:14:58 +00001012source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001013
Rob Herring387798b2012-09-06 13:41:12 -05001014source "arch/arm/mach-socfpga/Kconfig"
1015
Arnd Bergmanna7ed0992012-12-02 15:12:47 +01001016source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001017
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +01001018source "arch/arm/mach-sti/Kconfig"
1019
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001020source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021
Ben Dooks431107e2010-01-26 10:11:04 +09001022source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001023
Kukjin Kim49b7a492010-09-07 15:47:18 +09001024source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001025
Byungho Min5a7652f2009-06-23 21:39:42 +09001026source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001027
Kukjin Kim170f4e42010-02-24 16:40:44 +09001028source "arch/arm/mach-s5pv210/Kconfig"
1029
Kukjin Kim83014572011-11-06 13:54:56 +09001030source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001031
Russell King882d01f2010-03-02 23:40:15 +00001032source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033
Maxime Ripard3b526342012-11-08 12:40:16 +01001034source "arch/arm/mach-sunxi/Kconfig"
1035
Barry Song156a0992012-08-23 13:41:58 +08001036source "arch/arm/mach-prima2/Kconfig"
1037
Erik Gillingc5f80062010-01-21 16:53:02 -08001038source "arch/arm/mach-tegra/Kconfig"
1039
Russell King95b8f202010-01-14 11:43:54 +00001040source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041
Russell King95b8f202010-01-14 11:43:54 +00001042source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043
1044source "arch/arm/mach-versatile/Kconfig"
1045
Russell Kingceade892010-02-11 21:44:53 +00001046source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001047source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001048
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001049source "arch/arm/mach-vt8500/Kconfig"
1050
wanzongshun7ec80dd2008-12-03 03:55:38 +01001051source "arch/arm/mach-w90x900/Kconfig"
1052
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001053source "arch/arm/mach-zynq/Kconfig"
1054
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055# Definitions to make life easier
1056config ARCH_ACORN
1057 bool
1058
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001059config PLAT_IOP
1060 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001061 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001062
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001063config PLAT_ORION
1064 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001065 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001066 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001067 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001068 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001069
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001070config PLAT_ORION_LEGACY
1071 bool
1072 select PLAT_ORION
1073
Eric Miaobd5ce432009-01-20 12:06:01 +08001074config PLAT_PXA
1075 bool
1076
Russell Kingf4b8b312010-01-14 12:48:06 +00001077config PLAT_VERSATILE
1078 bool
1079
Russell Kinge3887712010-01-14 13:30:16 +00001080config ARM_TIMER_SP804
1081 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001082 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001083 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001084
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001085source "arch/arm/firmware/Kconfig"
1086
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087source arch/arm/mm/Kconfig
1088
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001089config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001090 bool "Enable iWMMXt support"
1091 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1092 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001093 help
1094 Enable support for iWMMXt context switching at run time if
1095 running on a CPU that supports it.
1096
eric miao52108642010-12-13 09:42:34 +01001097config MULTI_IRQ_HANDLER
1098 bool
1099 help
1100 Allow each machine to specify it's own IRQ handler at run time.
1101
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001102if !MMU
1103source "arch/arm/Kconfig-nommu"
1104endif
1105
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001106config PJ4B_ERRATA_4742
1107 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1108 depends on CPU_PJ4B && MACH_ARMADA_370
1109 default y
1110 help
1111 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1112 Event (WFE) IDLE states, a specific timing sensitivity exists between
1113 the retiring WFI/WFE instructions and the newly issued subsequent
1114 instructions. This sensitivity can result in a CPU hang scenario.
1115 Workaround:
1116 The software must insert either a Data Synchronization Barrier (DSB)
1117 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1118 instruction
1119
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001120config ARM_ERRATA_326103
1121 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1122 depends on CPU_V6
1123 help
1124 Executing a SWP instruction to read-only memory does not set bit 11
1125 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1126 treat the access as a read, preventing a COW from occurring and
1127 causing the faulting task to livelock.
1128
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001129config ARM_ERRATA_411920
1130 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001131 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001132 help
1133 Invalidation of the Instruction Cache operation can
1134 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1135 It does not affect the MPCore. This option enables the ARM Ltd.
1136 recommended workaround.
1137
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001138config ARM_ERRATA_430973
1139 bool "ARM errata: Stale prediction on replaced interworking branch"
1140 depends on CPU_V7
1141 help
1142 This option enables the workaround for the 430973 Cortex-A8
1143 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1144 interworking branch is replaced with another code sequence at the
1145 same virtual address, whether due to self-modifying code or virtual
1146 to physical address re-mapping, Cortex-A8 does not recover from the
1147 stale interworking branch prediction. This results in Cortex-A8
1148 executing the new code sequence in the incorrect ARM or Thumb state.
1149 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1150 and also flushes the branch target cache at every context switch.
1151 Note that setting specific bits in the ACTLR register may not be
1152 available in non-secure mode.
1153
Catalin Marinas855c5512009-04-30 17:06:15 +01001154config ARM_ERRATA_458693
1155 bool "ARM errata: Processor deadlock when a false hazard is created"
1156 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001157 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001158 help
1159 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1160 erratum. For very specific sequences of memory operations, it is
1161 possible for a hazard condition intended for a cache line to instead
1162 be incorrectly associated with a different cache line. This false
1163 hazard might then cause a processor deadlock. The workaround enables
1164 the L1 caching of the NEON accesses and disables the PLD instruction
1165 in the ACTLR register. Note that setting specific bits in the ACTLR
1166 register may not be available in non-secure mode.
1167
Catalin Marinas0516e462009-04-30 17:06:20 +01001168config ARM_ERRATA_460075
1169 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1170 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001171 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001172 help
1173 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1174 erratum. Any asynchronous access to the L2 cache may encounter a
1175 situation in which recent store transactions to the L2 cache are lost
1176 and overwritten with stale memory contents from external memory. The
1177 workaround disables the write-allocate mode for the L2 cache via the
1178 ACTLR register. Note that setting specific bits in the ACTLR register
1179 may not be available in non-secure mode.
1180
Will Deacon9f050272010-09-14 09:51:43 +01001181config ARM_ERRATA_742230
1182 bool "ARM errata: DMB operation may be faulty"
1183 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001184 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001185 help
1186 This option enables the workaround for the 742230 Cortex-A9
1187 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1188 between two write operations may not ensure the correct visibility
1189 ordering of the two writes. This workaround sets a specific bit in
1190 the diagnostic register of the Cortex-A9 which causes the DMB
1191 instruction to behave as a DSB, ensuring the correct behaviour of
1192 the two writes.
1193
Will Deacona672e992010-09-14 09:53:02 +01001194config ARM_ERRATA_742231
1195 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1196 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001197 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001198 help
1199 This option enables the workaround for the 742231 Cortex-A9
1200 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1201 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1202 accessing some data located in the same cache line, may get corrupted
1203 data due to bad handling of the address hazard when the line gets
1204 replaced from one of the CPUs at the same time as another CPU is
1205 accessing it. This workaround sets specific bits in the diagnostic
1206 register of the Cortex-A9 which reduces the linefill issuing
1207 capabilities of the processor.
1208
Jon Medhurst69155792013-06-07 10:35:35 +01001209config ARM_ERRATA_643719
1210 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1211 depends on CPU_V7 && SMP
1212 help
1213 This option enables the workaround for the 643719 Cortex-A9 (prior to
1214 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1215 register returns zero when it should return one. The workaround
1216 corrects this value, ensuring cache maintenance operations which use
1217 it behave as intended and avoiding data corruption.
1218
Will Deaconcdf357f2010-08-05 11:20:51 +01001219config ARM_ERRATA_720789
1220 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001221 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001222 help
1223 This option enables the workaround for the 720789 Cortex-A9 (prior to
1224 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1225 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1226 As a consequence of this erratum, some TLB entries which should be
1227 invalidated are not, resulting in an incoherency in the system page
1228 tables. The workaround changes the TLB flushing routines to invalidate
1229 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001230
1231config ARM_ERRATA_743622
1232 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1233 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001234 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001235 help
1236 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001237 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001238 optimisation in the Cortex-A9 Store Buffer may lead to data
1239 corruption. This workaround sets a specific bit in the diagnostic
1240 register of the Cortex-A9 which disables the Store Buffer
1241 optimisation, preventing the defect from occurring. This has no
1242 visible impact on the overall performance or power consumption of the
1243 processor.
1244
Will Deacon9a27c272011-02-18 16:36:35 +01001245config ARM_ERRATA_751472
1246 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001247 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001248 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001249 help
1250 This option enables the workaround for the 751472 Cortex-A9 (prior
1251 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1252 completion of a following broadcasted operation if the second
1253 operation is received by a CPU before the ICIALLUIS has completed,
1254 potentially leading to corrupted entries in the cache or TLB.
1255
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001256config ARM_ERRATA_754322
1257 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1258 depends on CPU_V7
1259 help
1260 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1261 r3p*) erratum. A speculative memory access may cause a page table walk
1262 which starts prior to an ASID switch but completes afterwards. This
1263 can populate the micro-TLB with a stale entry which may be hit with
1264 the new ASID. This workaround places two dsb instructions in the mm
1265 switching code so that no page table walks can cross the ASID switch.
1266
Will Deacon5dab26a2011-03-04 12:38:54 +01001267config ARM_ERRATA_754327
1268 bool "ARM errata: no automatic Store Buffer drain"
1269 depends on CPU_V7 && SMP
1270 help
1271 This option enables the workaround for the 754327 Cortex-A9 (prior to
1272 r2p0) erratum. The Store Buffer does not have any automatic draining
1273 mechanism and therefore a livelock may occur if an external agent
1274 continuously polls a memory location waiting to observe an update.
1275 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1276 written polling loops from denying visibility of updates to memory.
1277
Catalin Marinas145e10e2011-08-15 11:04:41 +01001278config ARM_ERRATA_364296
1279 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001280 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001281 help
1282 This options enables the workaround for the 364296 ARM1136
1283 r0p2 erratum (possible cache data corruption with
1284 hit-under-miss enabled). It sets the undocumented bit 31 in
1285 the auxiliary control register and the FI bit in the control
1286 register, thus disabling hit-under-miss without putting the
1287 processor into full low interrupt latency mode. ARM11MPCore
1288 is not affected.
1289
Will Deaconf630c1b2011-09-15 11:45:15 +01001290config ARM_ERRATA_764369
1291 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1292 depends on CPU_V7 && SMP
1293 help
1294 This option enables the workaround for erratum 764369
1295 affecting Cortex-A9 MPCore with two or more processors (all
1296 current revisions). Under certain timing circumstances, a data
1297 cache line maintenance operation by MVA targeting an Inner
1298 Shareable memory region may fail to proceed up to either the
1299 Point of Coherency or to the Point of Unification of the
1300 system. This workaround adds a DSB instruction before the
1301 relevant cache maintenance functions and sets a specific bit
1302 in the diagnostic control register of the SCU.
1303
Simon Horman7253b852012-09-28 02:12:45 +01001304config ARM_ERRATA_775420
1305 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1306 depends on CPU_V7
1307 help
1308 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1309 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1310 operation aborts with MMU exception, it might cause the processor
1311 to deadlock. This workaround puts DSB before executing ISB if
1312 an abort may occur on cache maintenance.
1313
Catalin Marinas93dc6882013-03-26 23:35:04 +01001314config ARM_ERRATA_798181
1315 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1316 depends on CPU_V7 && SMP
1317 help
1318 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1319 adequately shooting down all use of the old entries. This
1320 option enables the Linux kernel workaround for this erratum
1321 which sends an IPI to the CPUs that are running the same ASID
1322 as the one being invalidated.
1323
Will Deacon84b65042013-08-20 17:29:55 +01001324config ARM_ERRATA_773022
1325 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1326 depends on CPU_V7
1327 help
1328 This option enables the workaround for the 773022 Cortex-A15
1329 (up to r0p4) erratum. In certain rare sequences of code, the
1330 loop buffer may deliver incorrect instructions. This
1331 workaround disables the loop buffer to avoid the erratum.
1332
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333endmenu
1334
1335source "arch/arm/common/Kconfig"
1336
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337menu "Bus support"
1338
1339config ARM_AMBA
1340 bool
1341
1342config ISA
1343 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 help
1345 Find out whether you have ISA slots on your motherboard. ISA is the
1346 name of a bus system, i.e. the way the CPU talks to the other stuff
1347 inside your box. Other bus systems are PCI, EISA, MicroChannel
1348 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1349 newer boards don't support it. If you have ISA, say Y, otherwise N.
1350
Russell King065909b2006-01-04 15:44:16 +00001351# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001352config ISA_DMA
1353 bool
Russell King065909b2006-01-04 15:44:16 +00001354 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355
Russell King065909b2006-01-04 15:44:16 +00001356# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001357config ISA_DMA_API
1358 bool
Al Viro5cae8412005-05-04 05:39:22 +01001359
Linus Torvalds1da177e2005-04-16 15:20:36 -07001360config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001361 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362 help
1363 Find out whether you have a PCI motherboard. PCI is the name of a
1364 bus system, i.e. the way the CPU talks to the other stuff inside
1365 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1366 VESA. If you have PCI, say Y, otherwise N.
1367
Anton Vorontsov52882172010-04-19 13:20:49 +01001368config PCI_DOMAINS
1369 bool
1370 depends on PCI
1371
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001372config PCI_NANOENGINE
1373 bool "BSE nanoEngine PCI support"
1374 depends on SA1100_NANOENGINE
1375 help
1376 Enable PCI on the BSE nanoEngine board.
1377
Matthew Wilcox36e23592007-07-10 10:54:40 -06001378config PCI_SYSCALL
1379 def_bool PCI
1380
Mike Rapoporta0113a92007-11-25 08:55:34 +01001381config PCI_HOST_ITE8152
1382 bool
1383 depends on PCI && MACH_ARMCORE
1384 default y
1385 select DMABOUNCE
1386
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001388source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001389
1390source "drivers/pcmcia/Kconfig"
1391
1392endmenu
1393
1394menu "Kernel Features"
1395
Dave Martin3b556582011-12-07 15:38:04 +00001396config HAVE_SMP
1397 bool
1398 help
1399 This option should be selected by machines which have an SMP-
1400 capable CPU.
1401
1402 The only effect of this option is to make the SMP-related
1403 options available to the user for configuration.
1404
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001406 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001407 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001408 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001409 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001410 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411 help
1412 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001413 a system with only one CPU, say N. If you have a system with more
1414 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415
Robert Graffham4a474152014-01-23 15:55:29 -08001416 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001418 you say Y here, the kernel will run on many, but not all,
1419 uniprocessor machines. On a uniprocessor machine, the kernel
1420 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001421
Paul Bolle395cf962011-08-15 02:02:26 +02001422 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001424 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001425
1426 If you don't know what to do here, say N.
1427
Russell Kingf00ec482010-09-04 10:47:48 +01001428config SMP_ON_UP
1429 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001430 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001431 default y
1432 help
1433 SMP kernels contain instructions which fail on non-SMP processors.
1434 Enabling this option allows the kernel to modify itself to make
1435 these instructions safe. Disabling it allows about 1K of space
1436 savings.
1437
1438 If you don't know what to do here, say Y.
1439
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001440config ARM_CPU_TOPOLOGY
1441 bool "Support cpu topology definition"
1442 depends on SMP && CPU_V7
1443 default y
1444 help
1445 Support ARM cpu topology definition. The MPIDR register defines
1446 affinity between processors which is then used to describe the cpu
1447 topology of an ARM System.
1448
1449config SCHED_MC
1450 bool "Multi-core scheduler support"
1451 depends on ARM_CPU_TOPOLOGY
1452 help
1453 Multi-core scheduler support improves the CPU scheduler's decision
1454 making when dealing with multi-core CPU chips at a cost of slightly
1455 increased overhead in some places. If unsure say N here.
1456
1457config SCHED_SMT
1458 bool "SMT scheduler support"
1459 depends on ARM_CPU_TOPOLOGY
1460 help
1461 Improves the CPU scheduler's decision making when dealing with
1462 MultiThreading at a cost of slightly increased overhead in some
1463 places. If unsure say N here.
1464
Russell Kinga8cbcd92009-05-16 11:51:14 +01001465config HAVE_ARM_SCU
1466 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001467 help
1468 This option enables support for the ARM system coherency unit
1469
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001470config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001471 bool "Architected timer support"
1472 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001473 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001474 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001475 help
1476 This option enables support for the ARM architected timer
1477
Russell Kingf32f4ce2009-05-16 12:14:21 +01001478config HAVE_ARM_TWD
1479 bool
1480 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001481 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001482 help
1483 This options enables support for the ARM timer and watchdog unit
1484
Nicolas Pitree8db2882012-04-12 02:45:22 -04001485config MCPM
1486 bool "Multi-Cluster Power Management"
1487 depends on CPU_V7 && SMP
1488 help
1489 This option provides the common power management infrastructure
1490 for (multi-)cluster based systems, such as big.LITTLE based
1491 systems.
1492
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001493config BIG_LITTLE
1494 bool "big.LITTLE support (Experimental)"
1495 depends on CPU_V7 && SMP
1496 select MCPM
1497 help
1498 This option enables support selections for the big.LITTLE
1499 system architecture.
1500
1501config BL_SWITCHER
1502 bool "big.LITTLE switcher support"
1503 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001504 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001505 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001506 help
1507 The big.LITTLE "switcher" provides the core functionality to
1508 transparently handle transition between a cluster of A15's
1509 and a cluster of A7's in a big.LITTLE system.
1510
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001511config BL_SWITCHER_DUMMY_IF
1512 tristate "Simple big.LITTLE switcher user interface"
1513 depends on BL_SWITCHER && DEBUG_KERNEL
1514 help
1515 This is a simple and dummy char dev interface to control
1516 the big.LITTLE switcher core code. It is meant for
1517 debugging purposes only.
1518
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001519choice
1520 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001521 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001522 default VMSPLIT_3G
1523 help
1524 Select the desired split between kernel and user memory.
1525
1526 If you are not absolutely sure what you are doing, leave this
1527 option alone!
1528
1529 config VMSPLIT_3G
1530 bool "3G/1G user/kernel split"
1531 config VMSPLIT_2G
1532 bool "2G/2G user/kernel split"
1533 config VMSPLIT_1G
1534 bool "1G/3G user/kernel split"
1535endchoice
1536
1537config PAGE_OFFSET
1538 hex
Russell King006fa252014-02-26 19:40:46 +00001539 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001540 default 0x40000000 if VMSPLIT_1G
1541 default 0x80000000 if VMSPLIT_2G
1542 default 0xC0000000
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544config NR_CPUS
1545 int "Maximum number of CPUs (2-32)"
1546 range 2 32
1547 depends on SMP
1548 default "4"
1549
Russell Kinga054a812005-11-02 22:24:33 +00001550config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001551 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001552 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001553 help
1554 Say Y here to experiment with turning CPUs off and on. CPUs
1555 can be controlled through /sys/devices/system/cpu.
1556
Will Deacon2bdd4242012-12-12 19:20:52 +00001557config ARM_PSCI
1558 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1559 depends on CPU_V7
1560 help
1561 Say Y here if you want Linux to communicate with system firmware
1562 implementing the PSCI specification for CPU-centric power
1563 management operations described in ARM document number ARM DEN
1564 0022A ("Power State Coordination Interface System Software on
1565 ARM processors").
1566
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001567# The GPIO number here must be sorted by descending number. In case of
1568# a multiplatform kernel, we just want the highest value required by the
1569# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001570config ARCH_NR_GPIO
1571 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001572 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Linus Walleij41c35482013-12-06 12:46:27 +01001573 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001574 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001575 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001576 default 352 if ARCH_VT8500
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001577 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001578 default 0
1579 help
1580 Maximum number of GPIOs in the system.
1581
1582 If unsure, leave the default value.
1583
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001584source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585
Russell Kingc9218b12013-04-27 23:31:10 +01001586config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001587 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001588 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001589 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001590 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001591 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001592 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001593
1594choice
Russell King47d84682013-09-10 23:47:55 +01001595 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001596 prompt "Timer frequency"
1597
1598config HZ_100
1599 bool "100 Hz"
1600
1601config HZ_200
1602 bool "200 Hz"
1603
1604config HZ_250
1605 bool "250 Hz"
1606
1607config HZ_300
1608 bool "300 Hz"
1609
1610config HZ_500
1611 bool "500 Hz"
1612
1613config HZ_1000
1614 bool "1000 Hz"
1615
1616endchoice
1617
1618config HZ
1619 int
Russell King47d84682013-09-10 23:47:55 +01001620 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001621 default 100 if HZ_100
1622 default 200 if HZ_200
1623 default 250 if HZ_250
1624 default 300 if HZ_300
1625 default 500 if HZ_500
1626 default 1000
1627
1628config SCHED_HRTICK
1629 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001630
Catalin Marinas16c79652009-07-24 12:33:02 +01001631config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001632 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001633 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001634 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001635 select AEABI
1636 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001637 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001638 help
1639 By enabling this option, the kernel will be compiled in
1640 Thumb-2 mode. A compiler/assembler that understand the unified
1641 ARM-Thumb syntax is needed.
1642
1643 If unsure, say N.
1644
Dave Martin6f685c52011-03-03 11:41:12 +01001645config THUMB2_AVOID_R_ARM_THM_JUMP11
1646 bool "Work around buggy Thumb-2 short branch relocations in gas"
1647 depends on THUMB2_KERNEL && MODULES
1648 default y
1649 help
1650 Various binutils versions can resolve Thumb-2 branches to
1651 locally-defined, preemptible global symbols as short-range "b.n"
1652 branch instructions.
1653
1654 This is a problem, because there's no guarantee the final
1655 destination of the symbol, or any candidate locations for a
1656 trampoline, are within range of the branch. For this reason, the
1657 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1658 relocation in modules at all, and it makes little sense to add
1659 support.
1660
1661 The symptom is that the kernel fails with an "unsupported
1662 relocation" error when loading some modules.
1663
1664 Until fixed tools are available, passing
1665 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1666 code which hits this problem, at the cost of a bit of extra runtime
1667 stack usage in some cases.
1668
1669 The problem is described in more detail at:
1670 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1671
1672 Only Thumb-2 kernels are affected.
1673
1674 Unless you are sure your tools don't have this problem, say Y.
1675
Catalin Marinas0becb082009-07-24 12:32:53 +01001676config ARM_ASM_UNIFIED
1677 bool
1678
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001679config AEABI
1680 bool "Use the ARM EABI to compile the kernel"
1681 help
1682 This option allows for the kernel to be compiled using the latest
1683 ARM ABI (aka EABI). This is only useful if you are using a user
1684 space environment that is also compiled with EABI.
1685
1686 Since there are major incompatibilities between the legacy ABI and
1687 EABI, especially with regard to structure member alignment, this
1688 option also changes the kernel syscall calling convention to
1689 disambiguate both ABIs and allow for backward compatibility support
1690 (selected with CONFIG_OABI_COMPAT).
1691
1692 To use this you need GCC version 4.0.0 or later.
1693
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001694config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001695 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001696 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001697 help
1698 This option preserves the old syscall interface along with the
1699 new (ARM EABI) one. It also provides a compatibility layer to
1700 intercept syscalls that have structure arguments which layout
1701 in memory differs between the legacy ABI and the new ARM EABI
1702 (only for non "thumb" binaries). This option adds a tiny
1703 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001704
1705 The seccomp filter system will not be available when this is
1706 selected, since there is no way yet to sensibly distinguish
1707 between calling conventions during filtering.
1708
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001709 If you know you'll be using only pure EABI user space then you
1710 can say N here. If this option is not selected and you attempt
1711 to execute a legacy ABI binary then the result will be
1712 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001713 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001714
Mel Gormaneb335752009-05-13 17:34:48 +01001715config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001716 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001717
Russell King05944d72006-11-30 20:43:51 +00001718config ARCH_SPARSEMEM_ENABLE
1719 bool
1720
Russell King07a2f732008-10-01 21:39:58 +01001721config ARCH_SPARSEMEM_DEFAULT
1722 def_bool ARCH_SPARSEMEM_ENABLE
1723
Russell King05944d72006-11-30 20:43:51 +00001724config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001725 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001726
Will Deacon7b7bf492011-05-19 13:21:14 +01001727config HAVE_ARCH_PFN_VALID
1728 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1729
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001730config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001731 bool "High Memory Support"
1732 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001733 help
1734 The address space of ARM processors is only 4 Gigabytes large
1735 and it has to accommodate user address space, kernel address
1736 space as well as some memory mapped IO. That means that, if you
1737 have a large amount of physical memory and/or IO, not all of the
1738 memory can be "permanently mapped" by the kernel. The physical
1739 memory that is not permanently mapped is called "high memory".
1740
1741 Depending on the selected kernel/user memory split, minimum
1742 vmalloc space and actual amount of RAM, you may not need this
1743 option which should result in a slightly faster kernel.
1744
1745 If unsure, say n.
1746
Russell King65cec8e2009-08-17 20:02:06 +01001747config HIGHPTE
1748 bool "Allocate 2nd-level pagetables from highmem"
1749 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001750
Jamie Iles1b8873a2010-02-02 20:25:44 +01001751config HW_PERF_EVENTS
1752 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001753 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001754 default y
1755 help
1756 Enable hardware performance counter support for perf events. If
1757 disabled, perf events will use software events only.
1758
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001759config SYS_SUPPORTS_HUGETLBFS
1760 def_bool y
1761 depends on ARM_LPAE
1762
Catalin Marinas8d962502012-07-25 14:39:26 +01001763config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1764 def_bool y
1765 depends on ARM_LPAE
1766
Steven Capper4bfab202013-07-26 14:58:22 +01001767config ARCH_WANT_GENERAL_HUGETLB
1768 def_bool y
1769
Dave Hansen3f22ab22005-06-23 00:07:43 -07001770source "mm/Kconfig"
1771
Magnus Dammc1b2d972010-07-05 10:00:11 +01001772config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001773 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1774 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001775 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001776 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001777 default "11"
1778 help
1779 The kernel memory allocator divides physically contiguous memory
1780 blocks into "zones", where each zone is a power of two number of
1781 pages. This option selects the largest power of two that the kernel
1782 keeps in the memory allocator. If you need to allocate very large
1783 blocks of physically contiguous memory, then you may need to
1784 increase this value.
1785
1786 This config option is actually maximum order plus one. For example,
1787 a value of 11 means that the largest free memory block is 2^10 pages.
1788
Linus Torvalds1da177e2005-04-16 15:20:36 -07001789config ALIGNMENT_TRAP
1790 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001791 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001793 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001794 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001795 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001796 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1797 address divisible by 4. On 32-bit ARM processors, these non-aligned
1798 fetch/store instructions will be emulated in software if you say
1799 here, which has a severe performance impact. This is necessary for
1800 correct operation of some network protocols. With an IP-only
1801 configuration it is safe to say N, otherwise say Y.
1802
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001803config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001804 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1805 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001806 default y if CPU_FEROCEON
1807 help
1808 Implement faster copy_to_user and clear_user methods for CPU
1809 cores where a 8-word STM instruction give significantly higher
1810 memory write throughput than a sequence of individual 32bit stores.
1811
1812 A possible side effect is a slight increase in scheduling latency
1813 between threads sharing the same address space if they invoke
1814 such copy operations with large buffers.
1815
1816 However, if the CPU data cache is using a write-allocate mode,
1817 this option is unlikely to provide any performance gain.
1818
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001819config SECCOMP
1820 bool
1821 prompt "Enable seccomp to safely compute untrusted bytecode"
1822 ---help---
1823 This kernel feature is useful for number crunching applications
1824 that may need to compute untrusted bytecode during their
1825 execution. By using pipes or other transports made available to
1826 the process as file descriptors supporting the read/write
1827 syscalls, it's possible to isolate those applications in
1828 their own address space using seccomp. Once seccomp is
1829 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1830 and the task is only allowed to execute a few safe syscalls
1831 defined by each seccomp mode.
1832
Stefano Stabellini06e62952013-10-15 15:47:14 +00001833config SWIOTLB
1834 def_bool y
1835
1836config IOMMU_HELPER
1837 def_bool SWIOTLB
1838
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001839config XEN_DOM0
1840 def_bool y
1841 depends on XEN
1842
1843config XEN
1844 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001845 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001846 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001847 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001848 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001849 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001850 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001851 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001852 help
1853 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1854
Linus Torvalds1da177e2005-04-16 15:20:36 -07001855endmenu
1856
1857menu "Boot options"
1858
Grant Likely9eb8f672011-04-28 14:27:20 -06001859config USE_OF
1860 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001861 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001862 select OF
1863 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001864 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001865 help
1866 Include support for flattened device tree machine descriptions.
1867
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001868config ATAGS
1869 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1870 default y
1871 help
1872 This is the traditional way of passing data to the kernel at boot
1873 time. If you are solely relying on the flattened device tree (or
1874 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1875 to remove ATAGS support from your kernel binary. If unsure,
1876 leave this to y.
1877
1878config DEPRECATED_PARAM_STRUCT
1879 bool "Provide old way to pass kernel parameters"
1880 depends on ATAGS
1881 help
1882 This was deprecated in 2001 and announced to live on for 5 years.
1883 Some old boot loaders still use this way.
1884
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885# Compressed boot loader in ROM. Yes, we really want to ask about
1886# TEXT and BSS so we preserve their values in the config files.
1887config ZBOOT_ROM_TEXT
1888 hex "Compressed ROM boot loader base address"
1889 default "0"
1890 help
1891 The physical address at which the ROM-able zImage is to be
1892 placed in the target. Platforms which normally make use of
1893 ROM-able zImage formats normally set this to a suitable
1894 value in their defconfig file.
1895
1896 If ZBOOT_ROM is not enabled, this has no effect.
1897
1898config ZBOOT_ROM_BSS
1899 hex "Compressed ROM boot loader BSS address"
1900 default "0"
1901 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001902 The base address of an area of read/write memory in the target
1903 for the ROM-able zImage which must be available while the
1904 decompressor is running. It must be large enough to hold the
1905 entire decompressed kernel plus an additional 128 KiB.
1906 Platforms which normally make use of ROM-able zImage formats
1907 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908
1909 If ZBOOT_ROM is not enabled, this has no effect.
1910
1911config ZBOOT_ROM
1912 bool "Compressed boot loader in ROM/flash"
1913 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001914 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001915 help
1916 Say Y here if you intend to execute your compressed kernel image
1917 (zImage) directly from ROM or flash. If unsure, say N.
1918
Simon Horman090ab3f2011-04-26 06:29:53 +01001919choice
1920 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001921 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001922 default ZBOOT_ROM_NONE
1923 help
1924 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001925 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001926 kernel image to an MMC or SD card and boot the kernel straight
1927 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001928 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001929 rest the kernel image to RAM.
1930
1931config ZBOOT_ROM_NONE
1932 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1933 help
1934 Do not load image from SD or MMC
1935
Simon Hormanf45b1142011-01-11 04:01:08 +01001936config ZBOOT_ROM_MMCIF
1937 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001938 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001939 Load image from MMCIF hardware block.
1940
1941config ZBOOT_ROM_SH_MOBILE_SDHI
1942 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1943 help
1944 Load image from SDHI hardware block
1945
1946endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001947
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001948config ARM_APPENDED_DTB
1949 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001950 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001951 help
1952 With this option, the boot code will look for a device tree binary
1953 (DTB) appended to zImage
1954 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1955
1956 This is meant as a backward compatibility convenience for those
1957 systems with a bootloader that can't be upgraded to accommodate
1958 the documented boot protocol using a device tree.
1959
1960 Beware that there is very little in terms of protection against
1961 this option being confused by leftover garbage in memory that might
1962 look like a DTB header after a reboot if no actual DTB is appended
1963 to zImage. Do not leave this option active in a production kernel
1964 if you don't intend to always append a DTB. Proper passing of the
1965 location into r2 of a bootloader provided DTB is always preferable
1966 to this option.
1967
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001968config ARM_ATAG_DTB_COMPAT
1969 bool "Supplement the appended DTB with traditional ATAG information"
1970 depends on ARM_APPENDED_DTB
1971 help
1972 Some old bootloaders can't be updated to a DTB capable one, yet
1973 they provide ATAGs with memory configuration, the ramdisk address,
1974 the kernel cmdline string, etc. Such information is dynamically
1975 provided by the bootloader and can't always be stored in a static
1976 DTB. To allow a device tree enabled kernel to be used with such
1977 bootloaders, this option allows zImage to extract the information
1978 from the ATAG list and store it at run time into the appended DTB.
1979
Genoud Richardd0f34a12012-06-26 16:37:59 +01001980choice
1981 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1982 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1983
1984config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1985 bool "Use bootloader kernel arguments if available"
1986 help
1987 Uses the command-line options passed by the boot loader instead of
1988 the device tree bootargs property. If the boot loader doesn't provide
1989 any, the device tree bootargs property will be used.
1990
1991config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1992 bool "Extend with bootloader kernel arguments"
1993 help
1994 The command-line arguments provided by the boot loader will be
1995 appended to the the device tree bootargs property.
1996
1997endchoice
1998
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999config CMDLINE
2000 string "Default kernel command string"
2001 default ""
2002 help
2003 On some architectures (EBSA110 and CATS), there is currently no way
2004 for the boot loader to pass arguments to the kernel. For these
2005 architectures, you should supply some command-line options at build
2006 time by entering them here. As a minimum, you should specify the
2007 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2008
Victor Boivie4394c122011-05-04 17:07:55 +01002009choice
2010 prompt "Kernel command line type" if CMDLINE != ""
2011 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002012 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002013
2014config CMDLINE_FROM_BOOTLOADER
2015 bool "Use bootloader kernel arguments if available"
2016 help
2017 Uses the command-line options passed by the boot loader. If
2018 the boot loader doesn't provide any, the default kernel command
2019 string provided in CMDLINE will be used.
2020
2021config CMDLINE_EXTEND
2022 bool "Extend bootloader kernel arguments"
2023 help
2024 The command-line arguments provided by the boot loader will be
2025 appended to the default kernel command string.
2026
Alexander Holler92d20402010-02-16 19:04:53 +01002027config CMDLINE_FORCE
2028 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002029 help
2030 Always use the default kernel command string, even if the boot
2031 loader passes other arguments to the kernel.
2032 This is useful if you cannot or don't want to change the
2033 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002034endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002035
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036config XIP_KERNEL
2037 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00002038 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039 help
2040 Execute-In-Place allows the kernel to run from non-volatile storage
2041 directly addressable by the CPU, such as NOR flash. This saves RAM
2042 space since the text section of the kernel is not loaded from flash
2043 to RAM. Read-write sections, such as the data section and stack,
2044 are still copied to RAM. The XIP kernel is not compressed since
2045 it has to run directly from flash, so it will take more space to
2046 store it. The flash address used to link the kernel object files,
2047 and for storing it, is configuration dependent. Therefore, if you
2048 say Y here, you must know the proper physical address where to
2049 store the kernel image depending on your own flash memory usage.
2050
2051 Also note that the make target becomes "make xipImage" rather than
2052 "make zImage" or "make Image". The final kernel binary to put in
2053 ROM memory will be arch/arm/boot/xipImage.
2054
2055 If unsure, say N.
2056
2057config XIP_PHYS_ADDR
2058 hex "XIP Kernel Physical Location"
2059 depends on XIP_KERNEL
2060 default "0x00080000"
2061 help
2062 This is the physical address in your flash memory the kernel will
2063 be linked for and stored to. This address is dependent on your
2064 own flash usage.
2065
Richard Purdiec587e4a2007-02-06 21:29:00 +01002066config KEXEC
2067 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002068 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002069 help
2070 kexec is a system call that implements the ability to shutdown your
2071 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002072 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002073 you can start any kernel with it, not just Linux.
2074
2075 It is an ongoing process to be certain the hardware in a machine
2076 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002077 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002078
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002079config ATAGS_PROC
2080 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002081 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002082 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002083 help
2084 Should the atags used to boot the kernel be exported in an "atags"
2085 file in procfs. Useful with kexec.
2086
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002087config CRASH_DUMP
2088 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002089 help
2090 Generate crash dump after being started by kexec. This should
2091 be normally only set in special crash dump kernels which are
2092 loaded in the main kernel with kexec-tools into a specially
2093 reserved region and then later executed after a crash by
2094 kdump/kexec. The crash dump kernel must be compiled to a
2095 memory address not used by the main kernel
2096
2097 For more details see Documentation/kdump/kdump.txt
2098
Eric Miaoe69edc792010-07-05 15:56:50 +02002099config AUTO_ZRELADDR
2100 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002101 help
2102 ZRELADDR is the physical address where the decompressed kernel
2103 image will be placed. If AUTO_ZRELADDR is selected, the address
2104 will be determined at run-time by masking the current IP with
2105 0xf8000000. This assumes the zImage being placed in the first 128MB
2106 from start of memory.
2107
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108endmenu
2109
Russell Kingac9d7ef2008-08-18 17:26:00 +01002110menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111
Ben Dooks89c52ed2009-07-30 23:23:24 +01002112if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114endif
2115
Russell Kingac9d7ef2008-08-18 17:26:00 +01002116source "drivers/cpuidle/Kconfig"
2117
2118endmenu
2119
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120menu "Floating point emulation"
2121
2122comment "At least one emulation must be selected"
2123
2124config FPE_NWFPE
2125 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002126 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002127 ---help---
2128 Say Y to include the NWFPE floating point emulator in the kernel.
2129 This is necessary to run most binaries. Linux does not currently
2130 support floating point hardware so you need to say Y here even if
2131 your machine has an FPA or floating point co-processor podule.
2132
2133 You may say N here if you are going to load the Acorn FPEmulator
2134 early in the bootup.
2135
2136config FPE_NWFPE_XP
2137 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002138 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002139 help
2140 Say Y to include 80-bit support in the kernel floating-point
2141 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2142 Note that gcc does not generate 80-bit operations by default,
2143 so in most cases this option only enlarges the size of the
2144 floating point emulator without any good reason.
2145
2146 You almost surely want to say N here.
2147
2148config FPE_FASTFPE
2149 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002150 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151 ---help---
2152 Say Y here to include the FAST floating point emulator in the kernel.
2153 This is an experimental much faster emulator which now also has full
2154 precision for the mantissa. It does not support any exceptions.
2155 It is very simple, and approximately 3-6 times faster than NWFPE.
2156
2157 It should be sufficient for most programs. It may be not suitable
2158 for scientific calculations, but you have to check this for yourself.
2159 If you do not feel you need a faster FP emulation you should better
2160 choose NWFPE.
2161
2162config VFP
2163 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002164 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165 help
2166 Say Y to include VFP support code in the kernel. This is needed
2167 if your hardware includes a VFP unit.
2168
2169 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2170 release notes and additional status information.
2171
2172 Say N if your target does not have VFP hardware.
2173
Catalin Marinas25ebee02007-09-25 15:22:24 +01002174config VFPv3
2175 bool
2176 depends on VFP
2177 default y if CPU_V7
2178
Catalin Marinasb5872db2008-01-10 19:16:17 +01002179config NEON
2180 bool "Advanced SIMD (NEON) Extension support"
2181 depends on VFPv3 && CPU_V7
2182 help
2183 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2184 Extension.
2185
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002186config KERNEL_MODE_NEON
2187 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002188 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002189 help
2190 Say Y to include support for NEON in kernel mode.
2191
Linus Torvalds1da177e2005-04-16 15:20:36 -07002192endmenu
2193
2194menu "Userspace binary formats"
2195
2196source "fs/Kconfig.binfmt"
2197
2198config ARTHUR
2199 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002200 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002201 help
2202 Say Y here to include the kernel code necessary if you want to run
2203 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2204 experimental; if this sounds frightening, say N and sleep in peace.
2205 You can also say M here to compile this support as a module (which
2206 will be called arthur).
2207
2208endmenu
2209
2210menu "Power management options"
2211
Russell Kingeceab4a2005-11-15 11:31:41 +00002212source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213
Johannes Bergf4cb5702007-12-08 02:14:00 +01002214config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002215 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002216 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002217 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002218 def_bool y
2219
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002220config ARM_CPU_SUSPEND
2221 def_bool PM_SLEEP
2222
Sebastian Capella603fb422014-03-25 01:20:29 +01002223config ARCH_HIBERNATION_POSSIBLE
2224 bool
2225 depends on MMU
2226 default y if ARCH_SUSPEND_POSSIBLE
2227
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228endmenu
2229
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002230source "net/Kconfig"
2231
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002232source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002233
2234source "fs/Kconfig"
2235
Linus Torvalds1da177e2005-04-16 15:20:36 -07002236source "arch/arm/Kconfig.debug"
2237
2238source "security/Kconfig"
2239
2240source "crypto/Kconfig"
2241
2242source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002243
2244source "arch/arm/kvm/Kconfig"