blob: da77f786f99f89055f0d978c997e1731b122b562 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Riku Voipio957e3fa2014-12-12 16:57:44 -08008 select ARCH_HAS_GCOV_PROFILE_ALL
Mark Salterd7018842013-10-07 22:07:58 -04009 select ARCH_MIGHT_HAVE_PC_PARPORT
Peter Zijlstra4badad32014-06-06 19:53:16 +020010 select ARCH_SUPPORTS_ATOMIC_RMW
Kim Phillips017f1612013-11-06 05:15:24 +010011 select ARCH_USE_BUILTIN_BSWAP
Will Deacon0cbad9c2013-10-09 17:19:22 +010012 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010013 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010014 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010015 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacondce5c9e2013-12-17 19:50:16 +010017 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
Laura Abbott36d0fd22014-10-09 15:26:42 -070018 select GENERIC_ALLOCATOR
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010019 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010020 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010021 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010022 select GENERIC_IRQ_PROBE
23 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010024 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070025 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010026 select GENERIC_SMP_IDLE_THREAD
27 select GENERIC_STRNCPY_FROM_USER
28 select GENERIC_STRNLEN_USER
Marc Zyngiera71b0922014-08-26 11:03:18 +010029 select HANDLE_DOMAIN_IRQ
Russell Kingb1b3f492012-10-06 17:12:25 +010030 select HARDIRQS_SW_RESEND
AKASHI Takahiro7a017722014-02-25 18:16:24 +090031 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
Rabin Vincent09f05d82012-02-18 17:52:41 +010032 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060033 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010034 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010035 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010036 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010037 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010038 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010039 select HAVE_C_RECORDMCOUNT
40 select HAVE_DEBUG_KMEMLEAK
41 select HAVE_DMA_API_DEBUG
42 select HAVE_DMA_ATTRS
43 select HAVE_DMA_CONTIGUOUS if MMU
44 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010045 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
47 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
48 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
49 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
51 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010052 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070054 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select HAVE_KERNEL_LZMA
56 select HAVE_KERNEL_LZO
57 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010058 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080059 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010060 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010061 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010062 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010063 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010064 select HAVE_PERF_REGS
65 select HAVE_PERF_USER_STACK_DUMP
Steve Cappera0ad5492014-10-09 15:29:18 -070066 select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
Will Deacone513f8b2010-06-25 12:24:53 +010067 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010068 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070069 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070070 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010071 select IRQ_FORCED_THREADING
Russell King171b3f02013-09-12 21:24:42 +010072 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040073 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010074 select OLD_SIGACTION
75 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010076 select PERF_USE_VMALLOC
77 select RTC_LIB
78 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010079 # Above selects are sorted alphabetically; please add new ones
80 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 help
82 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000083 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000085 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 Europe. There is an ARM Linux project with a web page at
87 <http://www.arm.linux.org.uk/>.
88
Russell King74facff2011-06-02 11:16:22 +010089config ARM_HAS_SG_CHAIN
Laura Abbott308c09f2014-08-08 14:23:25 -070090 select ARCH_HAS_SG_CHAIN
Russell King74facff2011-06-02 11:16:22 +010091 bool
92
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020093config NEED_SG_DMA_LENGTH
94 bool
95
96config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020097 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010098 select ARM_HAS_SG_CHAIN
99 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +0200100
Seung-Woo Kim60460ab2013-02-06 13:21:14 +0900101if ARM_DMA_USE_IOMMU
102
103config ARM_DMA_IOMMU_ALIGNMENT
104 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
105 range 4 9
106 default 8
107 help
108 DMA mapping framework by default aligns all buffers to the smallest
109 PAGE_SIZE order which is greater than or equal to the requested buffer
110 size. This works well for buffers up to a few hundreds kilobytes, but
111 for larger buffers it just a waste of address space. Drivers which has
112 relatively small addressing window (like 64Mib) might run out of
113 virtual space with just a few allocations.
114
115 With this parameter you can specify the maximum PAGE_SIZE order for
116 DMA IOMMU buffers. Larger buffers will be aligned only to this
117 specified order. The order is expressed as a power of two multiplied
118 by the PAGE_SIZE.
119
120endif
121
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100122config MIGHT_HAVE_PCI
123 bool
124
Ralf Baechle75e71532007-02-09 17:08:58 +0000125config SYS_SUPPORTS_APM_EMULATION
126 bool
127
Linus Walleijbc581772009-09-15 17:30:37 +0100128config HAVE_TCM
129 bool
130 select GENERIC_ALLOCATOR
131
Russell Kinge119bff2010-01-10 17:23:29 +0000132config HAVE_PROC_CPU
133 bool
134
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700135config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000136 bool
Al Viro5ea81762007-02-11 15:41:31 +0000137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138config EISA
139 bool
140 ---help---
141 The Extended Industry Standard Architecture (EISA) bus was
142 developed as an open alternative to the IBM MicroChannel bus.
143
144 The EISA bus provided some of the features of the IBM MicroChannel
145 bus while maintaining backward compatibility with cards made for
146 the older ISA bus. The EISA bus saw limited use between 1988 and
147 1995 when it was made obsolete by the PCI bus.
148
149 Say Y here if you are building a kernel for an EISA-based machine.
150
151 Otherwise, say N.
152
153config SBUS
154 bool
155
Russell Kingf16fb1e2007-04-28 09:59:37 +0100156config STACKTRACE_SUPPORT
157 bool
158 default y
159
Nicolas Pitref76e9152008-04-24 01:31:46 -0400160config HAVE_LATENCYTOP_SUPPORT
161 bool
162 depends on !SMP
163 default y
164
Russell Kingf16fb1e2007-04-28 09:59:37 +0100165config LOCKDEP_SUPPORT
166 bool
167 default y
168
Russell King7ad1bcb2006-08-27 12:07:02 +0100169config TRACE_IRQFLAGS_SUPPORT
170 bool
171 default y
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173config RWSEM_XCHGADD_ALGORITHM
174 bool
Will Deacon8a874112014-05-02 17:06:19 +0100175 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
David Howellsf0d1b0b2006-12-08 02:37:49 -0800177config ARCH_HAS_ILOG2_U32
178 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800179
180config ARCH_HAS_ILOG2_U64
181 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800182
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100183config ARCH_HAS_BANDGAP
184 bool
185
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800186config GENERIC_HWEIGHT
187 bool
188 default y
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190config GENERIC_CALIBRATE_DELAY
191 bool
192 default y
193
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100194config ARCH_MAY_HAVE_PC_FDC
195 bool
196
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800197config ZONE_DMA
198 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800199
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800200config NEED_DMA_MAP_STATE
201 def_bool y
202
David A. Longc7edc9e2014-03-07 11:23:04 -0500203config ARCH_SUPPORTS_UPROBES
204 def_bool y
205
Rob Herring58af4a22012-03-20 14:33:01 -0500206config ARCH_HAS_DMA_SET_COHERENT_MASK
207 bool
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209config GENERIC_ISA_DMA
210 bool
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212config FIQ
213 bool
214
Rob Herring13a50452012-02-07 09:28:22 -0600215config NEED_RET_TO_USER
216 bool
217
Al Viro034d2f52005-12-19 16:27:59 -0500218config ARCH_MTD_XIP
219 bool
220
Hyok S. Choic760fc12006-03-27 15:18:50 +0100221config VECTORS_BASE
222 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900223 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100224 default DRAM_BASE if REMAP_VECTORS_TO_RAM
225 default 0x00000000
226 help
Russell King19accfd2013-07-04 11:40:32 +0100227 The base address of exception vectors. This must be two pages
228 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100229
Russell Kingdc21af92011-01-04 19:09:43 +0000230config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100231 bool "Patch physical to virtual translations at runtime" if EMBEDDED
232 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100233 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000234 depends on !ARCH_REALVIEW || !SPARSEMEM
235 help
Russell King111e9a52011-05-12 10:02:42 +0100236 Patch phys-to-virt and virt-to-phys translation functions at
237 boot and module load time according to the position of the
238 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000239
Russell King111e9a52011-05-12 10:02:42 +0100240 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100241 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000242
Russell Kingc1beced2011-08-10 10:23:45 +0100243 Only disable this option if you know that you do not require
244 this feature (eg, building a kernel for a single machine) and
245 you need to shrink the kernel to the minimal size.
246
Rob Herringc334bc12012-03-04 22:03:33 -0600247config NEED_MACH_IO_H
248 bool
249 help
250 Select this when mach/io.h is required to provide special
251 definitions for this platform. The need for mach/io.h should
252 be avoided when possible.
253
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400254config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400255 bool
Russell King111e9a52011-05-12 10:02:42 +0100256 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400257 Select this when mach/memory.h is required to provide special
258 definitions for this platform. The need for mach/memory.h should
259 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400260
261config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100262 hex "Physical address of main memory" if MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100263 depends on !ARM_PATCH_PHYS_VIRT
Nicolas Pitre974c0722011-12-02 23:09:42 +0100264 default DRAM_BASE if !MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100265 default 0x00000000 if ARCH_EBSA110 || \
266 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
267 ARCH_FOOTBRIDGE || \
268 ARCH_INTEGRATOR || \
269 ARCH_IOP13XX || \
270 ARCH_KS8695 || \
271 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
272 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
273 default 0x20000000 if ARCH_S5PV210
274 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
275 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
276 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
277 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
278 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400279 help
280 Please provide the physical address corresponding to the
281 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000282
Simon Glass87e040b2011-08-16 23:44:26 +0100283config GENERIC_BUG
284 def_bool y
285 depends on BUG
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287source "init/Kconfig"
288
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700289source "kernel/Kconfig.freezer"
290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291menu "System Type"
292
Hyok S. Choi3c427972009-07-24 12:35:00 +0100293config MMU
294 bool "MMU-based Paged Memory Management Support"
295 default y
296 help
297 Select if you want MMU-based virtualised addressing space
298 support by paged memory management. If unsure, say 'Y'.
299
Russell Kingccf50e22010-03-15 19:03:06 +0000300#
301# The "ARM system type" choice list is ordered alphabetically by option
302# text. Please add new entries in the option alphabetic order.
303#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304choice
305 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100306 default ARCH_VERSATILE if !MMU
307 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Rob Herring387798b2012-09-06 13:41:12 -0500309config ARCH_MULTIPLATFORM
310 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100311 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600312 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700313 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500314 select ARM_PATCH_PHYS_VIRT
315 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500316 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600317 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600318 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100319 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500320 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600321 select SPARSE_IRQ
322 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600323
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100324config ARCH_REALVIEW
325 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100328 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200329 select COMMON_CLK
330 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100331 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100332 select GPIO_PL061 if GPIOLIB
333 select ICST
334 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000335 select PLAT_VERSATILE
Pawel Moll81cc3f82014-11-25 18:17:34 +0000336 select PLAT_VERSATILE_SCHED_CLOCK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 help
338 This enables support for ARM Ltd RealView boards.
339
340config ARCH_VERSATILE
341 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100342 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100343 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100344 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100346 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100347 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900348 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000349 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000350 select PLAT_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100351 select PLAT_VERSATILE_CLOCK
Pawel Moll81cc3f82014-11-25 18:17:34 +0000352 select PLAT_VERSATILE_SCHED_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100353 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100354 help
355 This enables support for ARM Ltd Versatile board.
356
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100357config ARCH_AT91
358 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100359 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100360 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100361 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500362 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800363 select PINCTRL
Nicolas Ferred48346c2014-11-21 16:41:50 +0100364 select PINCTRL_AT91
365 select USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100366 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100367 This enables support for systems based on Atmel
Nicolas Ferre32963a82014-11-21 16:44:31 +0100368 AT91RM9200, AT91SAM9 and SAMA5 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369
Russell King93e22562012-10-12 14:20:52 +0100370config ARCH_CLPS711X
371 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400372 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400373 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400374 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100375 select COMMON_CLK
376 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400377 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400378 select MFD_SYSCON
Alexander Shiyane4e3a372014-08-19 16:31:15 +0400379 select SOC_BUS
Russell King93e22562012-10-12 14:20:52 +0100380 help
381 Support for Cirrus Logic 711x/721x/731x based boards.
382
Russell King788c9702009-04-26 14:21:59 +0100383config ARCH_GEMINI
384 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100385 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200386 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100387 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200388 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100389 help
390 Support for the Cortina Systems Gemini family SoCs
391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392config ARCH_EBSA110
393 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100394 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100396 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600397 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400398 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700399 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 help
401 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000402 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 Ethernet interface, two PCMCIA sockets, two serial ports and a
404 parallel port.
405
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100406config ARCH_EFM32
407 bool "Energy Micro efm32"
408 depends on !MMU
409 select ARCH_REQUIRE_GPIOLIB
410 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100411 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100412 select CLKSRC_OF
413 select COMMON_CLK
414 select CPU_V7M
415 select GENERIC_CLOCKEVENTS
416 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700417 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100418 select SPARSE_IRQ
419 select USE_OF
420 help
421 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
422 processors.
423
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000424config ARCH_EP93XX
425 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100426 select ARCH_HAS_HOLES_MEMORYMODEL
427 select ARCH_REQUIRE_GPIOLIB
428 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000429 select ARM_AMBA
430 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100431 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100432 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000433 help
434 This enables support for the Cirrus EP93xx series of CPUs.
435
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436config ARCH_FOOTBRIDGE
437 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000440 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200441 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600442 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400443 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000444 help
445 Support for systems based on the DC21285 companion chip
446 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100448config ARCH_NETX
449 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100450 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100451 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000452 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100453 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000454 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100455 This enables support for systems based on the Hilscher NetX Soc
456
Russell King3b938be2007-05-12 11:25:44 +0100457config ARCH_IOP13XX
458 bool "IOP13xx-based"
459 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100460 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400461 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600462 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select PCI
464 select PLAT_IOP
465 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000466 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100467 help
468 Support for Intel's IOP13XX (XScale) family of processors.
469
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100470config ARCH_IOP32X
471 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100472 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100473 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000474 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200475 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600476 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100477 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100478 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000479 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100480 Support for Intel's 80219 and IOP32X (XScale) family of
481 processors.
482
483config ARCH_IOP33X
484 bool "IOP33x-based"
485 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100486 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000487 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200488 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600489 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100490 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100491 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100492 help
493 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494
Russell King3b938be2007-05-12 11:25:44 +0100495config ARCH_IXP4XX
496 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100497 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500498 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100499 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100500 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100501 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000502 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100503 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100504 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100505 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600506 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200507 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100508 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100509 help
Russell King3b938be2007-05-12 11:25:44 +0100510 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100511
Saeed Bisharaedabd382009-08-06 15:12:43 +0300512config ARCH_DOVE
513 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300514 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100515 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300516 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100517 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100518 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100519 select PINCTRL
520 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200521 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300522 help
523 Support for the Marvell Dove SoC 88AP510
524
Russell King788c9702009-04-26 14:21:59 +0100525config ARCH_MV78XX0
526 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100528 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100529 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100530 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100531 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200532 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100533 help
534 Support for the following Marvell MV78xx0 series SoCs:
535 MV781x0, MV782x0.
536
537config ARCH_ORION5X
538 bool "Marvell Orion"
539 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700540 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100541 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100542 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100543 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100544 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200545 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100546 help
547 Support for the following Marvell Orion 5x series SoCs:
548 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
549 Orion-2 (5281), Orion-1-90 (6183).
550
551config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500552 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100553 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100554 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100555 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100556 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100557 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800558 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800559 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800560 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800561 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100562 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400563 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100564 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500565 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100566
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100567config ARCH_KS8695
568 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100569 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200570 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100571 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200572 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100574 help
575 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
576 System-on-Chip devices.
577
Russell King788c9702009-04-26 14:21:59 +0100578config ARCH_W90X900
579 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100580 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100581 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100582 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100583 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100584 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200585 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100586 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
587 At present, the w90x900 has been renamed nuc900, regarding
588 the ARM series product line, you can login the following
589 link address to know more.
590
591 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
592 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400593
Russell King93e22562012-10-12 14:20:52 +0100594config ARCH_LPC32XX
595 bool "NXP LPC32XX"
596 select ARCH_REQUIRE_GPIOLIB
597 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000598 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100599 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100600 select CPU_ARM926T
601 select GENERIC_CLOCKEVENTS
602 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100603 select USE_OF
604 help
605 Support for the NXP LPC32XX family of processors
606
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700608 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100609 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100610 select ARCH_MTD_XIP
611 select ARCH_REQUIRE_GPIOLIB
612 select ARM_CPU_SUSPEND if PM
613 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100614 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100615 select CLKSRC_MMIO
Robert Jarzmik6f6caea2014-07-14 18:52:03 +0200616 select CLKSRC_OF
Eric Miao981d0f32007-07-24 01:22:43 +0100617 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800618 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100619 select HAVE_IDE
620 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800621 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800622 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000623 help
eric miao2c8086a2007-09-11 19:13:17 -0700624 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600626config ARCH_MSM
627 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700628 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700629 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100630 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800631 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800632 Support for Qualcomm MSM/QSD based systems. This runs on the
633 apps processor of the MSM/QSD and depends on a shared memory
634 interface to the modem processor which runs the baseband
635 stack and controls some vital subsystems
636 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800637
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100638config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100639 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100640 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100641 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900642 select CLKDEV_LOOKUP
Magnus Damm0ed82bc2014-08-25 12:45:41 +0900643 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100644 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800645 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc22013-02-15 16:02:20 -0800646 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900647 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000648 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000649 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000650 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700651 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200652 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100653 select PM_GENERIC_DOMAINS if PM
Magnus Damm0cdc23d2014-08-25 12:45:50 +0900654 select SH_CLK_CPG
Russell Kingb1b3f492012-10-06 17:12:25 +0100655 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000656 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100657 Support for Renesas ARM SoC platforms using a non-multiplatform
658 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
659 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661config ARCH_RPC
662 bool "RiscPC"
663 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100664 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100665 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000666 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100667 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100668 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200669 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100670 select HAVE_PATA_PLATFORM
671 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600672 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400673 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700674 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100675 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 help
677 On the Acorn Risc-PC, Linux can support the internal IDE disk and
678 CD-ROM interface, serial and parallel port, and the floppy drive.
679
680config ARCH_SA1100
681 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100682 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700683 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100684 select ARCH_SPARSEMEM_ENABLE
685 select CLKDEV_LOOKUP
686 select CLKSRC_MMIO
687 select CPU_FREQ
688 select CPU_SA1100
689 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200690 select HAVE_IDE
Dmitry Eremin-Solenikov1eca42b2014-11-28 15:56:54 +0100691 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100692 select ISA
Dmitry Eremin-Solenikovaffcab32014-11-28 15:55:16 +0100693 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400694 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100695 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000696 help
697 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900699config ARCH_S3C24XX
700 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900701 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100702 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100703 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200704 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800705 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900706 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900707 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900710 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600711 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900712 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900714 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
715 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
716 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
717 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900718
Ben Dooksa08ab632008-10-21 14:06:39 +0100719config ARCH_S3C64XX
720 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900721 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200722 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100723 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100724 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200726 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900727 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900728 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800729 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900730 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900731 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900732 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100733 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700734 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100736 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select S3C_DEV_NAND
738 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900739 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900740 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900741 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100742 help
743 Samsung S3C64XX series based systems
744
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100745config ARCH_DAVINCI
746 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100747 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700748 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100749 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700750 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100751 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100752 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500754 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530755 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100756 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100757 help
758 Support for TI's DaVinci platform.
759
Tony Lindgrena0694862013-01-11 11:24:20 -0800760config ARCH_OMAP1
761 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600762 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100763 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800764 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100765 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200766 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100767 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100768 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800769 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800770 select HAVE_IDE
771 select IRQ_DOMAIN
772 select NEED_MACH_IO_H if PCCARD
773 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100774 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800775 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800776
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777endchoice
778
Rob Herring387798b2012-09-06 13:41:12 -0500779menu "Multiple platform selection"
780 depends on ARCH_MULTIPLATFORM
781
782comment "CPU Core family selection"
783
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100784config ARCH_MULTI_V4
785 bool "ARMv4 based platforms (FA526)"
786 depends on !ARCH_MULTI_V6_V7
787 select ARCH_MULTI_V4_V5
788 select CPU_FA526
789
Rob Herring387798b2012-09-06 13:41:12 -0500790config ARCH_MULTI_V4T
791 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500792 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100793 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200794 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
795 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
796 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500797
798config ARCH_MULTI_V5
799 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500800 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100802 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200803 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
804 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500805
806config ARCH_MULTI_V4_V5
807 bool
808
809config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800810 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500811 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600812 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500813
814config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800815 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500816 default y
817 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select CPU_V7
Rob Herring90bc8ac72014-01-31 15:32:02 -0600819 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500820
821config ARCH_MULTI_V6_V7
822 bool
Rob Herring9352b052014-01-31 15:36:10 -0600823 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500824
825config ARCH_MULTI_CPU_AUTO
826 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
827 select ARCH_MULTI_V5
828
829endmenu
830
Rob Herring05e2a3d2013-12-05 10:04:54 -0600831config ARCH_VIRT
832 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600833 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600834 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600835 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600836 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600837
Russell Kingccf50e22010-03-15 19:03:06 +0000838#
839# This is sorted alphabetically by mach-* pathname. However, plat-*
840# Kconfigs may be included either alphabetically (according to the
841# plat- suffix) or along side the corresponding mach-* source.
842#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200843source "arch/arm/mach-mvebu/Kconfig"
844
Oleksij Rempeld9bfc862014-11-24 12:08:27 +0100845source "arch/arm/mach-asm9260/Kconfig"
846
Russell King95b8f202010-01-14 11:43:54 +0000847source "arch/arm/mach-at91/Kconfig"
848
Anders Berg1d22924e2014-05-23 11:08:35 +0200849source "arch/arm/mach-axxia/Kconfig"
850
Christian Daudt8ac49e02012-11-19 09:46:10 -0800851source "arch/arm/mach-bcm/Kconfig"
852
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200853source "arch/arm/mach-berlin/Kconfig"
854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855source "arch/arm/mach-clps711x/Kconfig"
856
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300857source "arch/arm/mach-cns3xxx/Kconfig"
858
Russell King95b8f202010-01-14 11:43:54 +0000859source "arch/arm/mach-davinci/Kconfig"
860
861source "arch/arm/mach-dove/Kconfig"
862
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000863source "arch/arm/mach-ep93xx/Kconfig"
864
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865source "arch/arm/mach-footbridge/Kconfig"
866
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200867source "arch/arm/mach-gemini/Kconfig"
868
Rob Herring387798b2012-09-06 13:41:12 -0500869source "arch/arm/mach-highbank/Kconfig"
870
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800871source "arch/arm/mach-hisi/Kconfig"
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873source "arch/arm/mach-integrator/Kconfig"
874
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100875source "arch/arm/mach-iop32x/Kconfig"
876
877source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878
Dan Williams285f5fa2006-12-07 02:59:39 +0100879source "arch/arm/mach-iop13xx/Kconfig"
880
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881source "arch/arm/mach-ixp4xx/Kconfig"
882
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400883source "arch/arm/mach-keystone/Kconfig"
884
Russell King95b8f202010-01-14 11:43:54 +0000885source "arch/arm/mach-ks8695/Kconfig"
886
Carlo Caione3b8f5032014-09-10 22:16:59 +0200887source "arch/arm/mach-meson/Kconfig"
888
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-msm/Kconfig"
890
Jonas Jensen17723fd32013-12-18 13:58:45 +0100891source "arch/arm/mach-moxart/Kconfig"
892
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200893source "arch/arm/mach-mv78xx0/Kconfig"
894
Shawn Guo3995eb82012-09-13 19:48:07 +0800895source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896
Matthias Bruggerf682a212014-05-13 01:06:13 +0200897source "arch/arm/mach-mediatek/Kconfig"
898
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800899source "arch/arm/mach-mxs/Kconfig"
900
Russell King95b8f202010-01-14 11:43:54 +0000901source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000904
Daniel Tang9851ca52013-06-11 18:40:17 +1000905source "arch/arm/mach-nspire/Kconfig"
906
Tony Lindgrend48af152005-07-10 19:58:17 +0100907source "arch/arm/plat-omap/Kconfig"
908
909source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700910
Tony Lindgren1dbae812005-11-10 14:26:51 +0000911source "arch/arm/mach-omap2/Kconfig"
912
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400913source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400914
Rob Herring387798b2012-09-06 13:41:12 -0500915source "arch/arm/mach-picoxcell/Kconfig"
916
Russell King95b8f202010-01-14 11:43:54 +0000917source "arch/arm/mach-pxa/Kconfig"
918source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
Russell King95b8f202010-01-14 11:43:54 +0000920source "arch/arm/mach-mmp/Kconfig"
921
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600922source "arch/arm/mach-qcom/Kconfig"
923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/mach-realview/Kconfig"
925
Heiko Stuebnerd63dc0512013-06-02 23:09:41 +0200926source "arch/arm/mach-rockchip/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300929
Rob Herring387798b2012-09-06 13:41:12 -0500930source "arch/arm/mach-socfpga/Kconfig"
931
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100932source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100933
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100934source "arch/arm/mach-sti/Kconfig"
935
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900936source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937
Ben Dooks431107e2010-01-26 10:11:04 +0900938source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100939
Kukjin Kim170f4e42010-02-24 16:40:44 +0900940source "arch/arm/mach-s5pv210/Kconfig"
941
Kukjin Kim83014572011-11-06 13:54:56 +0900942source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500943source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900944
Russell King882d01f2010-03-02 23:40:15 +0000945source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Maxime Ripard3b526342012-11-08 12:40:16 +0100947source "arch/arm/mach-sunxi/Kconfig"
948
Barry Song156a0992012-08-23 13:41:58 +0800949source "arch/arm/mach-prima2/Kconfig"
950
Erik Gillingc5f80062010-01-21 16:53:02 -0800951source "arch/arm/mach-tegra/Kconfig"
952
Russell King95b8f202010-01-14 11:43:54 +0000953source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
957source "arch/arm/mach-versatile/Kconfig"
958
Russell Kingceade892010-02-11 21:44:53 +0000959source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000960source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000961
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300962source "arch/arm/mach-vt8500/Kconfig"
963
wanzongshun7ec80dd2008-12-03 03:55:38 +0100964source "arch/arm/mach-w90x900/Kconfig"
965
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600966source "arch/arm/mach-zynq/Kconfig"
967
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968# Definitions to make life easier
969config ARCH_ACORN
970 bool
971
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100972config PLAT_IOP
973 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700974 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100975
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400976config PLAT_ORION
977 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100978 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100979 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100980 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200981 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400982
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200983config PLAT_ORION_LEGACY
984 bool
985 select PLAT_ORION
986
Eric Miaobd5ce432009-01-20 12:06:01 +0800987config PLAT_PXA
988 bool
989
Russell Kingf4b8b312010-01-14 12:48:06 +0000990config PLAT_VERSATILE
991 bool
992
Russell Kinge3887712010-01-14 13:30:16 +0000993config ARM_TIMER_SP804
994 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100995 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -0500996 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +0000997
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +0900998source "arch/arm/firmware/Kconfig"
999
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000source arch/arm/mm/Kconfig
1001
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001002config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001003 bool "Enable iWMMXt support"
1004 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1005 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001006 help
1007 Enable support for iWMMXt context switching at run time if
1008 running on a CPU that supports it.
1009
eric miao52108642010-12-13 09:42:34 +01001010config MULTI_IRQ_HANDLER
1011 bool
1012 help
1013 Allow each machine to specify it's own IRQ handler at run time.
1014
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001015if !MMU
1016source "arch/arm/Kconfig-nommu"
1017endif
1018
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001019config PJ4B_ERRATA_4742
1020 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1021 depends on CPU_PJ4B && MACH_ARMADA_370
1022 default y
1023 help
1024 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1025 Event (WFE) IDLE states, a specific timing sensitivity exists between
1026 the retiring WFI/WFE instructions and the newly issued subsequent
1027 instructions. This sensitivity can result in a CPU hang scenario.
1028 Workaround:
1029 The software must insert either a Data Synchronization Barrier (DSB)
1030 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1031 instruction
1032
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001033config ARM_ERRATA_326103
1034 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1035 depends on CPU_V6
1036 help
1037 Executing a SWP instruction to read-only memory does not set bit 11
1038 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1039 treat the access as a read, preventing a COW from occurring and
1040 causing the faulting task to livelock.
1041
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001042config ARM_ERRATA_411920
1043 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001044 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001045 help
1046 Invalidation of the Instruction Cache operation can
1047 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1048 It does not affect the MPCore. This option enables the ARM Ltd.
1049 recommended workaround.
1050
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001051config ARM_ERRATA_430973
1052 bool "ARM errata: Stale prediction on replaced interworking branch"
1053 depends on CPU_V7
1054 help
1055 This option enables the workaround for the 430973 Cortex-A8
1056 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1057 interworking branch is replaced with another code sequence at the
1058 same virtual address, whether due to self-modifying code or virtual
1059 to physical address re-mapping, Cortex-A8 does not recover from the
1060 stale interworking branch prediction. This results in Cortex-A8
1061 executing the new code sequence in the incorrect ARM or Thumb state.
1062 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1063 and also flushes the branch target cache at every context switch.
1064 Note that setting specific bits in the ACTLR register may not be
1065 available in non-secure mode.
1066
Catalin Marinas855c5512009-04-30 17:06:15 +01001067config ARM_ERRATA_458693
1068 bool "ARM errata: Processor deadlock when a false hazard is created"
1069 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001070 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001071 help
1072 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1073 erratum. For very specific sequences of memory operations, it is
1074 possible for a hazard condition intended for a cache line to instead
1075 be incorrectly associated with a different cache line. This false
1076 hazard might then cause a processor deadlock. The workaround enables
1077 the L1 caching of the NEON accesses and disables the PLD instruction
1078 in the ACTLR register. Note that setting specific bits in the ACTLR
1079 register may not be available in non-secure mode.
1080
Catalin Marinas0516e462009-04-30 17:06:20 +01001081config ARM_ERRATA_460075
1082 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1083 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001084 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001085 help
1086 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1087 erratum. Any asynchronous access to the L2 cache may encounter a
1088 situation in which recent store transactions to the L2 cache are lost
1089 and overwritten with stale memory contents from external memory. The
1090 workaround disables the write-allocate mode for the L2 cache via the
1091 ACTLR register. Note that setting specific bits in the ACTLR register
1092 may not be available in non-secure mode.
1093
Will Deacon9f050272010-09-14 09:51:43 +01001094config ARM_ERRATA_742230
1095 bool "ARM errata: DMB operation may be faulty"
1096 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001097 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001098 help
1099 This option enables the workaround for the 742230 Cortex-A9
1100 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1101 between two write operations may not ensure the correct visibility
1102 ordering of the two writes. This workaround sets a specific bit in
1103 the diagnostic register of the Cortex-A9 which causes the DMB
1104 instruction to behave as a DSB, ensuring the correct behaviour of
1105 the two writes.
1106
Will Deacona672e992010-09-14 09:53:02 +01001107config ARM_ERRATA_742231
1108 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1109 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001110 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001111 help
1112 This option enables the workaround for the 742231 Cortex-A9
1113 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1114 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1115 accessing some data located in the same cache line, may get corrupted
1116 data due to bad handling of the address hazard when the line gets
1117 replaced from one of the CPUs at the same time as another CPU is
1118 accessing it. This workaround sets specific bits in the diagnostic
1119 register of the Cortex-A9 which reduces the linefill issuing
1120 capabilities of the processor.
1121
Jon Medhurst69155792013-06-07 10:35:35 +01001122config ARM_ERRATA_643719
1123 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1124 depends on CPU_V7 && SMP
1125 help
1126 This option enables the workaround for the 643719 Cortex-A9 (prior to
1127 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1128 register returns zero when it should return one. The workaround
1129 corrects this value, ensuring cache maintenance operations which use
1130 it behave as intended and avoiding data corruption.
1131
Will Deaconcdf357f2010-08-05 11:20:51 +01001132config ARM_ERRATA_720789
1133 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001134 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001135 help
1136 This option enables the workaround for the 720789 Cortex-A9 (prior to
1137 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1138 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1139 As a consequence of this erratum, some TLB entries which should be
1140 invalidated are not, resulting in an incoherency in the system page
1141 tables. The workaround changes the TLB flushing routines to invalidate
1142 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001143
1144config ARM_ERRATA_743622
1145 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1146 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001147 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001148 help
1149 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001150 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001151 optimisation in the Cortex-A9 Store Buffer may lead to data
1152 corruption. This workaround sets a specific bit in the diagnostic
1153 register of the Cortex-A9 which disables the Store Buffer
1154 optimisation, preventing the defect from occurring. This has no
1155 visible impact on the overall performance or power consumption of the
1156 processor.
1157
Will Deacon9a27c272011-02-18 16:36:35 +01001158config ARM_ERRATA_751472
1159 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001160 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001161 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001162 help
1163 This option enables the workaround for the 751472 Cortex-A9 (prior
1164 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1165 completion of a following broadcasted operation if the second
1166 operation is received by a CPU before the ICIALLUIS has completed,
1167 potentially leading to corrupted entries in the cache or TLB.
1168
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001169config ARM_ERRATA_754322
1170 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1171 depends on CPU_V7
1172 help
1173 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1174 r3p*) erratum. A speculative memory access may cause a page table walk
1175 which starts prior to an ASID switch but completes afterwards. This
1176 can populate the micro-TLB with a stale entry which may be hit with
1177 the new ASID. This workaround places two dsb instructions in the mm
1178 switching code so that no page table walks can cross the ASID switch.
1179
Will Deacon5dab26a2011-03-04 12:38:54 +01001180config ARM_ERRATA_754327
1181 bool "ARM errata: no automatic Store Buffer drain"
1182 depends on CPU_V7 && SMP
1183 help
1184 This option enables the workaround for the 754327 Cortex-A9 (prior to
1185 r2p0) erratum. The Store Buffer does not have any automatic draining
1186 mechanism and therefore a livelock may occur if an external agent
1187 continuously polls a memory location waiting to observe an update.
1188 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1189 written polling loops from denying visibility of updates to memory.
1190
Catalin Marinas145e10e2011-08-15 11:04:41 +01001191config ARM_ERRATA_364296
1192 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001193 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001194 help
1195 This options enables the workaround for the 364296 ARM1136
1196 r0p2 erratum (possible cache data corruption with
1197 hit-under-miss enabled). It sets the undocumented bit 31 in
1198 the auxiliary control register and the FI bit in the control
1199 register, thus disabling hit-under-miss without putting the
1200 processor into full low interrupt latency mode. ARM11MPCore
1201 is not affected.
1202
Will Deaconf630c1b2011-09-15 11:45:15 +01001203config ARM_ERRATA_764369
1204 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1205 depends on CPU_V7 && SMP
1206 help
1207 This option enables the workaround for erratum 764369
1208 affecting Cortex-A9 MPCore with two or more processors (all
1209 current revisions). Under certain timing circumstances, a data
1210 cache line maintenance operation by MVA targeting an Inner
1211 Shareable memory region may fail to proceed up to either the
1212 Point of Coherency or to the Point of Unification of the
1213 system. This workaround adds a DSB instruction before the
1214 relevant cache maintenance functions and sets a specific bit
1215 in the diagnostic control register of the SCU.
1216
Simon Horman7253b852012-09-28 02:12:45 +01001217config ARM_ERRATA_775420
1218 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1219 depends on CPU_V7
1220 help
1221 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1222 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1223 operation aborts with MMU exception, it might cause the processor
1224 to deadlock. This workaround puts DSB before executing ISB if
1225 an abort may occur on cache maintenance.
1226
Catalin Marinas93dc6882013-03-26 23:35:04 +01001227config ARM_ERRATA_798181
1228 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1229 depends on CPU_V7 && SMP
1230 help
1231 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1232 adequately shooting down all use of the old entries. This
1233 option enables the Linux kernel workaround for this erratum
1234 which sends an IPI to the CPUs that are running the same ASID
1235 as the one being invalidated.
1236
Will Deacon84b65042013-08-20 17:29:55 +01001237config ARM_ERRATA_773022
1238 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1239 depends on CPU_V7
1240 help
1241 This option enables the workaround for the 773022 Cortex-A15
1242 (up to r0p4) erratum. In certain rare sequences of code, the
1243 loop buffer may deliver incorrect instructions. This
1244 workaround disables the loop buffer to avoid the erratum.
1245
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246endmenu
1247
1248source "arch/arm/common/Kconfig"
1249
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250menu "Bus support"
1251
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252config ISA
1253 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254 help
1255 Find out whether you have ISA slots on your motherboard. ISA is the
1256 name of a bus system, i.e. the way the CPU talks to the other stuff
1257 inside your box. Other bus systems are PCI, EISA, MicroChannel
1258 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1259 newer boards don't support it. If you have ISA, say Y, otherwise N.
1260
Russell King065909b2006-01-04 15:44:16 +00001261# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262config ISA_DMA
1263 bool
Russell King065909b2006-01-04 15:44:16 +00001264 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001265
Russell King065909b2006-01-04 15:44:16 +00001266# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001267config ISA_DMA_API
1268 bool
Al Viro5cae8412005-05-04 05:39:22 +01001269
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001271 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 help
1273 Find out whether you have a PCI motherboard. PCI is the name of a
1274 bus system, i.e. the way the CPU talks to the other stuff inside
1275 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1276 VESA. If you have PCI, say Y, otherwise N.
1277
Anton Vorontsov52882172010-04-19 13:20:49 +01001278config PCI_DOMAINS
1279 bool
1280 depends on PCI
1281
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001282config PCI_NANOENGINE
1283 bool "BSE nanoEngine PCI support"
1284 depends on SA1100_NANOENGINE
1285 help
1286 Enable PCI on the BSE nanoEngine board.
1287
Matthew Wilcox36e23592007-07-10 10:54:40 -06001288config PCI_SYSCALL
1289 def_bool PCI
1290
Mike Rapoporta0113a92007-11-25 08:55:34 +01001291config PCI_HOST_ITE8152
1292 bool
1293 depends on PCI && MACH_ARMCORE
1294 default y
1295 select DMABOUNCE
1296
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001298source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299
1300source "drivers/pcmcia/Kconfig"
1301
1302endmenu
1303
1304menu "Kernel Features"
1305
Dave Martin3b556582011-12-07 15:38:04 +00001306config HAVE_SMP
1307 bool
1308 help
1309 This option should be selected by machines which have an SMP-
1310 capable CPU.
1311
1312 The only effect of this option is to make the SMP-related
1313 options available to the user for configuration.
1314
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001316 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001317 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001318 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001319 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001320 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321 help
1322 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001323 a system with only one CPU, say N. If you have a system with more
1324 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325
Robert Graffham4a474152014-01-23 15:55:29 -08001326 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001328 you say Y here, the kernel will run on many, but not all,
1329 uniprocessor machines. On a uniprocessor machine, the kernel
1330 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331
Paul Bolle395cf962011-08-15 02:02:26 +02001332 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001334 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335
1336 If you don't know what to do here, say N.
1337
Russell Kingf00ec482010-09-04 10:47:48 +01001338config SMP_ON_UP
1339 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001340 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001341 default y
1342 help
1343 SMP kernels contain instructions which fail on non-SMP processors.
1344 Enabling this option allows the kernel to modify itself to make
1345 these instructions safe. Disabling it allows about 1K of space
1346 savings.
1347
1348 If you don't know what to do here, say Y.
1349
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001350config ARM_CPU_TOPOLOGY
1351 bool "Support cpu topology definition"
1352 depends on SMP && CPU_V7
1353 default y
1354 help
1355 Support ARM cpu topology definition. The MPIDR register defines
1356 affinity between processors which is then used to describe the cpu
1357 topology of an ARM System.
1358
1359config SCHED_MC
1360 bool "Multi-core scheduler support"
1361 depends on ARM_CPU_TOPOLOGY
1362 help
1363 Multi-core scheduler support improves the CPU scheduler's decision
1364 making when dealing with multi-core CPU chips at a cost of slightly
1365 increased overhead in some places. If unsure say N here.
1366
1367config SCHED_SMT
1368 bool "SMT scheduler support"
1369 depends on ARM_CPU_TOPOLOGY
1370 help
1371 Improves the CPU scheduler's decision making when dealing with
1372 MultiThreading at a cost of slightly increased overhead in some
1373 places. If unsure say N here.
1374
Russell Kinga8cbcd92009-05-16 11:51:14 +01001375config HAVE_ARM_SCU
1376 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001377 help
1378 This option enables support for the ARM system coherency unit
1379
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001380config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001381 bool "Architected timer support"
1382 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001383 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001384 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001385 help
1386 This option enables support for the ARM architected timer
1387
Russell Kingf32f4ce2009-05-16 12:14:21 +01001388config HAVE_ARM_TWD
1389 bool
1390 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001391 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001392 help
1393 This options enables support for the ARM timer and watchdog unit
1394
Nicolas Pitree8db2882012-04-12 02:45:22 -04001395config MCPM
1396 bool "Multi-Cluster Power Management"
1397 depends on CPU_V7 && SMP
1398 help
1399 This option provides the common power management infrastructure
1400 for (multi-)cluster based systems, such as big.LITTLE based
1401 systems.
1402
Haojian Zhuangebf4a5c2014-04-15 14:52:00 +08001403config MCPM_QUAD_CLUSTER
1404 bool
1405 depends on MCPM
1406 help
1407 To avoid wasting resources unnecessarily, MCPM only supports up
1408 to 2 clusters by default.
1409 Platforms with 3 or 4 clusters that use MCPM must select this
1410 option to allow the additional clusters to be managed.
1411
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001412config BIG_LITTLE
1413 bool "big.LITTLE support (Experimental)"
1414 depends on CPU_V7 && SMP
1415 select MCPM
1416 help
1417 This option enables support selections for the big.LITTLE
1418 system architecture.
1419
1420config BL_SWITCHER
1421 bool "big.LITTLE switcher support"
1422 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001423 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001424 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001425 help
1426 The big.LITTLE "switcher" provides the core functionality to
1427 transparently handle transition between a cluster of A15's
1428 and a cluster of A7's in a big.LITTLE system.
1429
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001430config BL_SWITCHER_DUMMY_IF
1431 tristate "Simple big.LITTLE switcher user interface"
1432 depends on BL_SWITCHER && DEBUG_KERNEL
1433 help
1434 This is a simple and dummy char dev interface to control
1435 the big.LITTLE switcher core code. It is meant for
1436 debugging purposes only.
1437
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001438choice
1439 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001440 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001441 default VMSPLIT_3G
1442 help
1443 Select the desired split between kernel and user memory.
1444
1445 If you are not absolutely sure what you are doing, leave this
1446 option alone!
1447
1448 config VMSPLIT_3G
1449 bool "3G/1G user/kernel split"
1450 config VMSPLIT_2G
1451 bool "2G/2G user/kernel split"
1452 config VMSPLIT_1G
1453 bool "1G/3G user/kernel split"
1454endchoice
1455
1456config PAGE_OFFSET
1457 hex
Russell King006fa252014-02-26 19:40:46 +00001458 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001459 default 0x40000000 if VMSPLIT_1G
1460 default 0x80000000 if VMSPLIT_2G
1461 default 0xC0000000
1462
Linus Torvalds1da177e2005-04-16 15:20:36 -07001463config NR_CPUS
1464 int "Maximum number of CPUs (2-32)"
1465 range 2 32
1466 depends on SMP
1467 default "4"
1468
Russell Kinga054a812005-11-02 22:24:33 +00001469config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001470 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001471 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001472 help
1473 Say Y here to experiment with turning CPUs off and on. CPUs
1474 can be controlled through /sys/devices/system/cpu.
1475
Will Deacon2bdd4242012-12-12 19:20:52 +00001476config ARM_PSCI
1477 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1478 depends on CPU_V7
1479 help
1480 Say Y here if you want Linux to communicate with system firmware
1481 implementing the PSCI specification for CPU-centric power
1482 management operations described in ARM document number ARM DEN
1483 0022A ("Power State Coordination Interface System Software on
1484 ARM processors").
1485
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001486# The GPIO number here must be sorted by descending number. In case of
1487# a multiplatform kernel, we just want the highest value required by the
1488# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001489config ARCH_NR_GPIO
1490 int
Michal Simek6a4d8f32015-01-15 08:42:42 +01001491 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
Tomasz Figaaa425872014-07-03 13:17:12 +02001492 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1493 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001494 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001495 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001496 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001497 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001498 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001499 default 0
1500 help
1501 Maximum number of GPIOs in the system.
1502
1503 If unsure, leave the default value.
1504
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001505source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506
Russell Kingc9218b12013-04-27 23:31:10 +01001507config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001508 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001509 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001510 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001511 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001512 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001513 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001514
1515choice
Russell King47d84682013-09-10 23:47:55 +01001516 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001517 prompt "Timer frequency"
1518
1519config HZ_100
1520 bool "100 Hz"
1521
1522config HZ_200
1523 bool "200 Hz"
1524
1525config HZ_250
1526 bool "250 Hz"
1527
1528config HZ_300
1529 bool "300 Hz"
1530
1531config HZ_500
1532 bool "500 Hz"
1533
1534config HZ_1000
1535 bool "1000 Hz"
1536
1537endchoice
1538
1539config HZ
1540 int
Russell King47d84682013-09-10 23:47:55 +01001541 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001542 default 100 if HZ_100
1543 default 200 if HZ_200
1544 default 250 if HZ_250
1545 default 300 if HZ_300
1546 default 500 if HZ_500
1547 default 1000
1548
1549config SCHED_HRTICK
1550 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001551
Catalin Marinas16c79652009-07-24 12:33:02 +01001552config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001553 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001554 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001555 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001556 select AEABI
1557 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001558 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001559 help
1560 By enabling this option, the kernel will be compiled in
1561 Thumb-2 mode. A compiler/assembler that understand the unified
1562 ARM-Thumb syntax is needed.
1563
1564 If unsure, say N.
1565
Dave Martin6f685c52011-03-03 11:41:12 +01001566config THUMB2_AVOID_R_ARM_THM_JUMP11
1567 bool "Work around buggy Thumb-2 short branch relocations in gas"
1568 depends on THUMB2_KERNEL && MODULES
1569 default y
1570 help
1571 Various binutils versions can resolve Thumb-2 branches to
1572 locally-defined, preemptible global symbols as short-range "b.n"
1573 branch instructions.
1574
1575 This is a problem, because there's no guarantee the final
1576 destination of the symbol, or any candidate locations for a
1577 trampoline, are within range of the branch. For this reason, the
1578 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1579 relocation in modules at all, and it makes little sense to add
1580 support.
1581
1582 The symptom is that the kernel fails with an "unsupported
1583 relocation" error when loading some modules.
1584
1585 Until fixed tools are available, passing
1586 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1587 code which hits this problem, at the cost of a bit of extra runtime
1588 stack usage in some cases.
1589
1590 The problem is described in more detail at:
1591 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1592
1593 Only Thumb-2 kernels are affected.
1594
1595 Unless you are sure your tools don't have this problem, say Y.
1596
Catalin Marinas0becb082009-07-24 12:32:53 +01001597config ARM_ASM_UNIFIED
1598 bool
1599
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001600config AEABI
1601 bool "Use the ARM EABI to compile the kernel"
1602 help
1603 This option allows for the kernel to be compiled using the latest
1604 ARM ABI (aka EABI). This is only useful if you are using a user
1605 space environment that is also compiled with EABI.
1606
1607 Since there are major incompatibilities between the legacy ABI and
1608 EABI, especially with regard to structure member alignment, this
1609 option also changes the kernel syscall calling convention to
1610 disambiguate both ABIs and allow for backward compatibility support
1611 (selected with CONFIG_OABI_COMPAT).
1612
1613 To use this you need GCC version 4.0.0 or later.
1614
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001615config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001616 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001617 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001618 help
1619 This option preserves the old syscall interface along with the
1620 new (ARM EABI) one. It also provides a compatibility layer to
1621 intercept syscalls that have structure arguments which layout
1622 in memory differs between the legacy ABI and the new ARM EABI
1623 (only for non "thumb" binaries). This option adds a tiny
1624 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001625
1626 The seccomp filter system will not be available when this is
1627 selected, since there is no way yet to sensibly distinguish
1628 between calling conventions during filtering.
1629
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001630 If you know you'll be using only pure EABI user space then you
1631 can say N here. If this option is not selected and you attempt
1632 to execute a legacy ABI binary then the result will be
1633 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001634 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001635
Mel Gormaneb335752009-05-13 17:34:48 +01001636config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001637 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001638
Russell King05944d72006-11-30 20:43:51 +00001639config ARCH_SPARSEMEM_ENABLE
1640 bool
1641
Russell King07a2f732008-10-01 21:39:58 +01001642config ARCH_SPARSEMEM_DEFAULT
1643 def_bool ARCH_SPARSEMEM_ENABLE
1644
Russell King05944d72006-11-30 20:43:51 +00001645config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001646 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001647
Will Deacon7b7bf492011-05-19 13:21:14 +01001648config HAVE_ARCH_PFN_VALID
1649 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1650
Steve Capperb8cd51a2014-10-09 15:29:20 -07001651config HAVE_GENERIC_RCU_GUP
1652 def_bool y
1653 depends on ARM_LPAE
1654
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001655config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001656 bool "High Memory Support"
1657 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001658 help
1659 The address space of ARM processors is only 4 Gigabytes large
1660 and it has to accommodate user address space, kernel address
1661 space as well as some memory mapped IO. That means that, if you
1662 have a large amount of physical memory and/or IO, not all of the
1663 memory can be "permanently mapped" by the kernel. The physical
1664 memory that is not permanently mapped is called "high memory".
1665
1666 Depending on the selected kernel/user memory split, minimum
1667 vmalloc space and actual amount of RAM, you may not need this
1668 option which should result in a slightly faster kernel.
1669
1670 If unsure, say n.
1671
Russell King65cec8e2009-08-17 20:02:06 +01001672config HIGHPTE
1673 bool "Allocate 2nd-level pagetables from highmem"
1674 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001675
Jamie Iles1b8873a2010-02-02 20:25:44 +01001676config HW_PERF_EVENTS
1677 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001678 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001679 default y
1680 help
1681 Enable hardware performance counter support for perf events. If
1682 disabled, perf events will use software events only.
1683
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001684config SYS_SUPPORTS_HUGETLBFS
1685 def_bool y
1686 depends on ARM_LPAE
1687
Catalin Marinas8d962502012-07-25 14:39:26 +01001688config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1689 def_bool y
1690 depends on ARM_LPAE
1691
Steven Capper4bfab202013-07-26 14:58:22 +01001692config ARCH_WANT_GENERAL_HUGETLB
1693 def_bool y
1694
Dave Hansen3f22ab22005-06-23 00:07:43 -07001695source "mm/Kconfig"
1696
Magnus Dammc1b2d972010-07-05 10:00:11 +01001697config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001698 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1699 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001700 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001701 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001702 default "11"
1703 help
1704 The kernel memory allocator divides physically contiguous memory
1705 blocks into "zones", where each zone is a power of two number of
1706 pages. This option selects the largest power of two that the kernel
1707 keeps in the memory allocator. If you need to allocate very large
1708 blocks of physically contiguous memory, then you may need to
1709 increase this value.
1710
1711 This config option is actually maximum order plus one. For example,
1712 a value of 11 means that the largest free memory block is 2^10 pages.
1713
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714config ALIGNMENT_TRAP
1715 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001716 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001717 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001718 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001720 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1722 address divisible by 4. On 32-bit ARM processors, these non-aligned
1723 fetch/store instructions will be emulated in software if you say
1724 here, which has a severe performance impact. This is necessary for
1725 correct operation of some network protocols. With an IP-only
1726 configuration it is safe to say N, otherwise say Y.
1727
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001728config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001729 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1730 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001731 default y if CPU_FEROCEON
1732 help
1733 Implement faster copy_to_user and clear_user methods for CPU
1734 cores where a 8-word STM instruction give significantly higher
1735 memory write throughput than a sequence of individual 32bit stores.
1736
1737 A possible side effect is a slight increase in scheduling latency
1738 between threads sharing the same address space if they invoke
1739 such copy operations with large buffers.
1740
1741 However, if the CPU data cache is using a write-allocate mode,
1742 this option is unlikely to provide any performance gain.
1743
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001744config SECCOMP
1745 bool
1746 prompt "Enable seccomp to safely compute untrusted bytecode"
1747 ---help---
1748 This kernel feature is useful for number crunching applications
1749 that may need to compute untrusted bytecode during their
1750 execution. By using pipes or other transports made available to
1751 the process as file descriptors supporting the read/write
1752 syscalls, it's possible to isolate those applications in
1753 their own address space using seccomp. Once seccomp is
1754 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1755 and the task is only allowed to execute a few safe syscalls
1756 defined by each seccomp mode.
1757
Stefano Stabellini06e62952013-10-15 15:47:14 +00001758config SWIOTLB
1759 def_bool y
1760
1761config IOMMU_HELPER
1762 def_bool SWIOTLB
1763
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001764config XEN_DOM0
1765 def_bool y
1766 depends on XEN
1767
1768config XEN
Julien Grallc2ba1f72014-09-17 14:07:06 -07001769 bool "Xen guest support on ARM"
Ian Campbell85323a92013-03-07 07:17:25 +00001770 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001771 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001772 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001773 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001774 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001775 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001776 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001777 help
1778 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1779
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780endmenu
1781
1782menu "Boot options"
1783
Grant Likely9eb8f672011-04-28 14:27:20 -06001784config USE_OF
1785 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001786 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001787 select OF
1788 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001789 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001790 help
1791 Include support for flattened device tree machine descriptions.
1792
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001793config ATAGS
1794 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1795 default y
1796 help
1797 This is the traditional way of passing data to the kernel at boot
1798 time. If you are solely relying on the flattened device tree (or
1799 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1800 to remove ATAGS support from your kernel binary. If unsure,
1801 leave this to y.
1802
1803config DEPRECATED_PARAM_STRUCT
1804 bool "Provide old way to pass kernel parameters"
1805 depends on ATAGS
1806 help
1807 This was deprecated in 2001 and announced to live on for 5 years.
1808 Some old boot loaders still use this way.
1809
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810# Compressed boot loader in ROM. Yes, we really want to ask about
1811# TEXT and BSS so we preserve their values in the config files.
1812config ZBOOT_ROM_TEXT
1813 hex "Compressed ROM boot loader base address"
1814 default "0"
1815 help
1816 The physical address at which the ROM-able zImage is to be
1817 placed in the target. Platforms which normally make use of
1818 ROM-able zImage formats normally set this to a suitable
1819 value in their defconfig file.
1820
1821 If ZBOOT_ROM is not enabled, this has no effect.
1822
1823config ZBOOT_ROM_BSS
1824 hex "Compressed ROM boot loader BSS address"
1825 default "0"
1826 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001827 The base address of an area of read/write memory in the target
1828 for the ROM-able zImage which must be available while the
1829 decompressor is running. It must be large enough to hold the
1830 entire decompressed kernel plus an additional 128 KiB.
1831 Platforms which normally make use of ROM-able zImage formats
1832 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833
1834 If ZBOOT_ROM is not enabled, this has no effect.
1835
1836config ZBOOT_ROM
1837 bool "Compressed boot loader in ROM/flash"
1838 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001839 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840 help
1841 Say Y here if you intend to execute your compressed kernel image
1842 (zImage) directly from ROM or flash. If unsure, say N.
1843
Simon Horman090ab3f2011-04-26 06:29:53 +01001844choice
1845 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001846 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001847 default ZBOOT_ROM_NONE
1848 help
1849 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001850 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001851 kernel image to an MMC or SD card and boot the kernel straight
1852 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001853 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001854 rest the kernel image to RAM.
1855
1856config ZBOOT_ROM_NONE
1857 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1858 help
1859 Do not load image from SD or MMC
1860
Simon Hormanf45b1142011-01-11 04:01:08 +01001861config ZBOOT_ROM_MMCIF
1862 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001863 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001864 Load image from MMCIF hardware block.
1865
1866config ZBOOT_ROM_SH_MOBILE_SDHI
1867 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1868 help
1869 Load image from SDHI hardware block
1870
1871endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001872
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001873config ARM_APPENDED_DTB
1874 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001875 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001876 help
1877 With this option, the boot code will look for a device tree binary
1878 (DTB) appended to zImage
1879 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1880
1881 This is meant as a backward compatibility convenience for those
1882 systems with a bootloader that can't be upgraded to accommodate
1883 the documented boot protocol using a device tree.
1884
1885 Beware that there is very little in terms of protection against
1886 this option being confused by leftover garbage in memory that might
1887 look like a DTB header after a reboot if no actual DTB is appended
1888 to zImage. Do not leave this option active in a production kernel
1889 if you don't intend to always append a DTB. Proper passing of the
1890 location into r2 of a bootloader provided DTB is always preferable
1891 to this option.
1892
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001893config ARM_ATAG_DTB_COMPAT
1894 bool "Supplement the appended DTB with traditional ATAG information"
1895 depends on ARM_APPENDED_DTB
1896 help
1897 Some old bootloaders can't be updated to a DTB capable one, yet
1898 they provide ATAGs with memory configuration, the ramdisk address,
1899 the kernel cmdline string, etc. Such information is dynamically
1900 provided by the bootloader and can't always be stored in a static
1901 DTB. To allow a device tree enabled kernel to be used with such
1902 bootloaders, this option allows zImage to extract the information
1903 from the ATAG list and store it at run time into the appended DTB.
1904
Genoud Richardd0f34a12012-06-26 16:37:59 +01001905choice
1906 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1907 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1908
1909config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1910 bool "Use bootloader kernel arguments if available"
1911 help
1912 Uses the command-line options passed by the boot loader instead of
1913 the device tree bootargs property. If the boot loader doesn't provide
1914 any, the device tree bootargs property will be used.
1915
1916config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1917 bool "Extend with bootloader kernel arguments"
1918 help
1919 The command-line arguments provided by the boot loader will be
1920 appended to the the device tree bootargs property.
1921
1922endchoice
1923
Linus Torvalds1da177e2005-04-16 15:20:36 -07001924config CMDLINE
1925 string "Default kernel command string"
1926 default ""
1927 help
1928 On some architectures (EBSA110 and CATS), there is currently no way
1929 for the boot loader to pass arguments to the kernel. For these
1930 architectures, you should supply some command-line options at build
1931 time by entering them here. As a minimum, you should specify the
1932 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1933
Victor Boivie4394c122011-05-04 17:07:55 +01001934choice
1935 prompt "Kernel command line type" if CMDLINE != ""
1936 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001937 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001938
1939config CMDLINE_FROM_BOOTLOADER
1940 bool "Use bootloader kernel arguments if available"
1941 help
1942 Uses the command-line options passed by the boot loader. If
1943 the boot loader doesn't provide any, the default kernel command
1944 string provided in CMDLINE will be used.
1945
1946config CMDLINE_EXTEND
1947 bool "Extend bootloader kernel arguments"
1948 help
1949 The command-line arguments provided by the boot loader will be
1950 appended to the default kernel command string.
1951
Alexander Holler92d20402010-02-16 19:04:53 +01001952config CMDLINE_FORCE
1953 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001954 help
1955 Always use the default kernel command string, even if the boot
1956 loader passes other arguments to the kernel.
1957 This is useful if you cannot or don't want to change the
1958 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001959endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001960
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961config XIP_KERNEL
1962 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001963 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001964 help
1965 Execute-In-Place allows the kernel to run from non-volatile storage
1966 directly addressable by the CPU, such as NOR flash. This saves RAM
1967 space since the text section of the kernel is not loaded from flash
1968 to RAM. Read-write sections, such as the data section and stack,
1969 are still copied to RAM. The XIP kernel is not compressed since
1970 it has to run directly from flash, so it will take more space to
1971 store it. The flash address used to link the kernel object files,
1972 and for storing it, is configuration dependent. Therefore, if you
1973 say Y here, you must know the proper physical address where to
1974 store the kernel image depending on your own flash memory usage.
1975
1976 Also note that the make target becomes "make xipImage" rather than
1977 "make zImage" or "make Image". The final kernel binary to put in
1978 ROM memory will be arch/arm/boot/xipImage.
1979
1980 If unsure, say N.
1981
1982config XIP_PHYS_ADDR
1983 hex "XIP Kernel Physical Location"
1984 depends on XIP_KERNEL
1985 default "0x00080000"
1986 help
1987 This is the physical address in your flash memory the kernel will
1988 be linked for and stored to. This address is dependent on your
1989 own flash usage.
1990
Richard Purdiec587e4a2007-02-06 21:29:00 +01001991config KEXEC
1992 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01001993 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01001994 help
1995 kexec is a system call that implements the ability to shutdown your
1996 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001997 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001998 you can start any kernel with it, not just Linux.
1999
2000 It is an ongoing process to be certain the hardware in a machine
2001 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002002 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002003
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002004config ATAGS_PROC
2005 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002006 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002007 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002008 help
2009 Should the atags used to boot the kernel be exported in an "atags"
2010 file in procfs. Useful with kexec.
2011
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002012config CRASH_DUMP
2013 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002014 help
2015 Generate crash dump after being started by kexec. This should
2016 be normally only set in special crash dump kernels which are
2017 loaded in the main kernel with kexec-tools into a specially
2018 reserved region and then later executed after a crash by
2019 kdump/kexec. The crash dump kernel must be compiled to a
2020 memory address not used by the main kernel
2021
2022 For more details see Documentation/kdump/kdump.txt
2023
Eric Miaoe69edc792010-07-05 15:56:50 +02002024config AUTO_ZRELADDR
2025 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002026 help
2027 ZRELADDR is the physical address where the decompressed kernel
2028 image will be placed. If AUTO_ZRELADDR is selected, the address
2029 will be determined at run-time by masking the current IP with
2030 0xf8000000. This assumes the zImage being placed in the first 128MB
2031 from start of memory.
2032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033endmenu
2034
Russell Kingac9d7ef2008-08-18 17:26:00 +01002035menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036
Linus Torvalds1da177e2005-04-16 15:20:36 -07002037source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038
Russell Kingac9d7ef2008-08-18 17:26:00 +01002039source "drivers/cpuidle/Kconfig"
2040
2041endmenu
2042
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043menu "Floating point emulation"
2044
2045comment "At least one emulation must be selected"
2046
2047config FPE_NWFPE
2048 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002049 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050 ---help---
2051 Say Y to include the NWFPE floating point emulator in the kernel.
2052 This is necessary to run most binaries. Linux does not currently
2053 support floating point hardware so you need to say Y here even if
2054 your machine has an FPA or floating point co-processor podule.
2055
2056 You may say N here if you are going to load the Acorn FPEmulator
2057 early in the bootup.
2058
2059config FPE_NWFPE_XP
2060 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002061 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062 help
2063 Say Y to include 80-bit support in the kernel floating-point
2064 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2065 Note that gcc does not generate 80-bit operations by default,
2066 so in most cases this option only enlarges the size of the
2067 floating point emulator without any good reason.
2068
2069 You almost surely want to say N here.
2070
2071config FPE_FASTFPE
2072 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002073 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002074 ---help---
2075 Say Y here to include the FAST floating point emulator in the kernel.
2076 This is an experimental much faster emulator which now also has full
2077 precision for the mantissa. It does not support any exceptions.
2078 It is very simple, and approximately 3-6 times faster than NWFPE.
2079
2080 It should be sufficient for most programs. It may be not suitable
2081 for scientific calculations, but you have to check this for yourself.
2082 If you do not feel you need a faster FP emulation you should better
2083 choose NWFPE.
2084
2085config VFP
2086 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002087 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002088 help
2089 Say Y to include VFP support code in the kernel. This is needed
2090 if your hardware includes a VFP unit.
2091
2092 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2093 release notes and additional status information.
2094
2095 Say N if your target does not have VFP hardware.
2096
Catalin Marinas25ebee02007-09-25 15:22:24 +01002097config VFPv3
2098 bool
2099 depends on VFP
2100 default y if CPU_V7
2101
Catalin Marinasb5872db2008-01-10 19:16:17 +01002102config NEON
2103 bool "Advanced SIMD (NEON) Extension support"
2104 depends on VFPv3 && CPU_V7
2105 help
2106 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2107 Extension.
2108
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002109config KERNEL_MODE_NEON
2110 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002111 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002112 help
2113 Say Y to include support for NEON in kernel mode.
2114
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115endmenu
2116
2117menu "Userspace binary formats"
2118
2119source "fs/Kconfig.binfmt"
2120
2121config ARTHUR
2122 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002123 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124 help
2125 Say Y here to include the kernel code necessary if you want to run
2126 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2127 experimental; if this sounds frightening, say N and sleep in peace.
2128 You can also say M here to compile this support as a module (which
2129 will be called arthur).
2130
2131endmenu
2132
2133menu "Power management options"
2134
Russell Kingeceab4a2005-11-15 11:31:41 +00002135source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136
Johannes Bergf4cb5702007-12-08 02:14:00 +01002137config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002138 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002139 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002140 def_bool y
2141
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002142config ARM_CPU_SUSPEND
2143 def_bool PM_SLEEP
2144
Sebastian Capella603fb422014-03-25 01:20:29 +01002145config ARCH_HIBERNATION_POSSIBLE
2146 bool
2147 depends on MMU
2148 default y if ARCH_SUSPEND_POSSIBLE
2149
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150endmenu
2151
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002152source "net/Kconfig"
2153
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002154source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155
2156source "fs/Kconfig"
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158source "arch/arm/Kconfig.debug"
2159
2160source "security/Kconfig"
2161
2162source "crypto/Kconfig"
2163
2164source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002165
2166source "arch/arm/kvm/Kconfig"