blob: 9f1f09a2bc9bf28894777c08d6968d7faeba55a6 [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)
Yalin Wang0b7857d2015-01-16 02:45:55 +010032 select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
Rabin Vincent09f05d82012-02-18 17:52:41 +010033 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060034 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010035 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010036 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010037 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010038 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010039 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010040 select HAVE_C_RECORDMCOUNT
41 select HAVE_DEBUG_KMEMLEAK
42 select HAVE_DMA_API_DEBUG
43 select HAVE_DMA_ATTRS
44 select HAVE_DMA_CONTIGUOUS if MMU
45 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010046 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010047 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
48 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
49 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
50 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010051 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
52 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010053 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010054 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070055 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010056 select HAVE_KERNEL_LZMA
57 select HAVE_KERNEL_LZO
58 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010059 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080060 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010061 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010062 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010063 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Wang Nan0dc016d2015-01-09 14:37:36 +080064 select HAVE_OPTPROBES if !THUMB2_KERNEL
Jamie Iles7ada1892010-02-02 20:24:58 +010065 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010066 select HAVE_PERF_REGS
67 select HAVE_PERF_USER_STACK_DUMP
Steve Cappera0ad5492014-10-09 15:29:18 -070068 select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
Will Deacone513f8b2010-06-25 12:24:53 +010069 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010070 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070071 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070072 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010073 select IRQ_FORCED_THREADING
Russell King171b3f02013-09-12 21:24:42 +010074 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040075 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010076 select OLD_SIGACTION
77 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010078 select PERF_USE_VMALLOC
79 select RTC_LIB
80 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010081 # Above selects are sorted alphabetically; please add new ones
82 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 help
84 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000085 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000087 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070088 Europe. There is an ARM Linux project with a web page at
89 <http://www.arm.linux.org.uk/>.
90
Russell King74facff2011-06-02 11:16:22 +010091config ARM_HAS_SG_CHAIN
Laura Abbott308c09f2014-08-08 14:23:25 -070092 select ARCH_HAS_SG_CHAIN
Russell King74facff2011-06-02 11:16:22 +010093 bool
94
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020095config NEED_SG_DMA_LENGTH
96 bool
97
98config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020099 bool
Russell Kingb1b3f492012-10-06 17:12:25 +0100100 select ARM_HAS_SG_CHAIN
101 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +0200102
Seung-Woo Kim60460ab2013-02-06 13:21:14 +0900103if ARM_DMA_USE_IOMMU
104
105config ARM_DMA_IOMMU_ALIGNMENT
106 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
107 range 4 9
108 default 8
109 help
110 DMA mapping framework by default aligns all buffers to the smallest
111 PAGE_SIZE order which is greater than or equal to the requested buffer
112 size. This works well for buffers up to a few hundreds kilobytes, but
113 for larger buffers it just a waste of address space. Drivers which has
114 relatively small addressing window (like 64Mib) might run out of
115 virtual space with just a few allocations.
116
117 With this parameter you can specify the maximum PAGE_SIZE order for
118 DMA IOMMU buffers. Larger buffers will be aligned only to this
119 specified order. The order is expressed as a power of two multiplied
120 by the PAGE_SIZE.
121
122endif
123
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100124config MIGHT_HAVE_PCI
125 bool
126
Ralf Baechle75e71532007-02-09 17:08:58 +0000127config SYS_SUPPORTS_APM_EMULATION
128 bool
129
Linus Walleijbc581772009-09-15 17:30:37 +0100130config HAVE_TCM
131 bool
132 select GENERIC_ALLOCATOR
133
Russell Kinge119bff2010-01-10 17:23:29 +0000134config HAVE_PROC_CPU
135 bool
136
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700137config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000138 bool
Al Viro5ea81762007-02-11 15:41:31 +0000139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140config EISA
141 bool
142 ---help---
143 The Extended Industry Standard Architecture (EISA) bus was
144 developed as an open alternative to the IBM MicroChannel bus.
145
146 The EISA bus provided some of the features of the IBM MicroChannel
147 bus while maintaining backward compatibility with cards made for
148 the older ISA bus. The EISA bus saw limited use between 1988 and
149 1995 when it was made obsolete by the PCI bus.
150
151 Say Y here if you are building a kernel for an EISA-based machine.
152
153 Otherwise, say N.
154
155config SBUS
156 bool
157
Russell Kingf16fb1e2007-04-28 09:59:37 +0100158config STACKTRACE_SUPPORT
159 bool
160 default y
161
Nicolas Pitref76e9152008-04-24 01:31:46 -0400162config HAVE_LATENCYTOP_SUPPORT
163 bool
164 depends on !SMP
165 default y
166
Russell Kingf16fb1e2007-04-28 09:59:37 +0100167config LOCKDEP_SUPPORT
168 bool
169 default y
170
Russell King7ad1bcb2006-08-27 12:07:02 +0100171config TRACE_IRQFLAGS_SUPPORT
172 bool
173 default y
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175config RWSEM_XCHGADD_ALGORITHM
176 bool
Will Deacon8a874112014-05-02 17:06:19 +0100177 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178
David Howellsf0d1b0b2006-12-08 02:37:49 -0800179config ARCH_HAS_ILOG2_U32
180 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800181
182config ARCH_HAS_ILOG2_U64
183 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800184
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100185config ARCH_HAS_BANDGAP
186 bool
187
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800188config GENERIC_HWEIGHT
189 bool
190 default y
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192config GENERIC_CALIBRATE_DELAY
193 bool
194 default y
195
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100196config ARCH_MAY_HAVE_PC_FDC
197 bool
198
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800199config ZONE_DMA
200 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800201
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800202config NEED_DMA_MAP_STATE
203 def_bool y
204
David A. Longc7edc9e2014-03-07 11:23:04 -0500205config ARCH_SUPPORTS_UPROBES
206 def_bool y
207
Rob Herring58af4a22012-03-20 14:33:01 -0500208config ARCH_HAS_DMA_SET_COHERENT_MASK
209 bool
210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211config GENERIC_ISA_DMA
212 bool
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214config FIQ
215 bool
216
Rob Herring13a50452012-02-07 09:28:22 -0600217config NEED_RET_TO_USER
218 bool
219
Al Viro034d2f52005-12-19 16:27:59 -0500220config ARCH_MTD_XIP
221 bool
222
Hyok S. Choic760fc12006-03-27 15:18:50 +0100223config VECTORS_BASE
224 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900225 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100226 default DRAM_BASE if REMAP_VECTORS_TO_RAM
227 default 0x00000000
228 help
Russell King19accfd2013-07-04 11:40:32 +0100229 The base address of exception vectors. This must be two pages
230 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100231
Russell Kingdc21af92011-01-04 19:09:43 +0000232config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100233 bool "Patch physical to virtual translations at runtime" if EMBEDDED
234 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100235 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000236 depends on !ARCH_REALVIEW || !SPARSEMEM
237 help
Russell King111e9a52011-05-12 10:02:42 +0100238 Patch phys-to-virt and virt-to-phys translation functions at
239 boot and module load time according to the position of the
240 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000241
Russell King111e9a52011-05-12 10:02:42 +0100242 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100243 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000244
Russell Kingc1beced2011-08-10 10:23:45 +0100245 Only disable this option if you know that you do not require
246 this feature (eg, building a kernel for a single machine) and
247 you need to shrink the kernel to the minimal size.
248
Rob Herringc334bc12012-03-04 22:03:33 -0600249config NEED_MACH_IO_H
250 bool
251 help
252 Select this when mach/io.h is required to provide special
253 definitions for this platform. The need for mach/io.h should
254 be avoided when possible.
255
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400256config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400257 bool
Russell King111e9a52011-05-12 10:02:42 +0100258 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400259 Select this when mach/memory.h is required to provide special
260 definitions for this platform. The need for mach/memory.h should
261 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400262
263config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100264 hex "Physical address of main memory" if MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100265 depends on !ARM_PATCH_PHYS_VIRT
Nicolas Pitre974c0722011-12-02 23:09:42 +0100266 default DRAM_BASE if !MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100267 default 0x00000000 if ARCH_EBSA110 || \
268 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
269 ARCH_FOOTBRIDGE || \
270 ARCH_INTEGRATOR || \
271 ARCH_IOP13XX || \
272 ARCH_KS8695 || \
273 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
274 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
275 default 0x20000000 if ARCH_S5PV210
276 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
277 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
278 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
279 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
280 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400281 help
282 Please provide the physical address corresponding to the
283 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000284
Simon Glass87e040b2011-08-16 23:44:26 +0100285config GENERIC_BUG
286 def_bool y
287 depends on BUG
288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289source "init/Kconfig"
290
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700291source "kernel/Kconfig.freezer"
292
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293menu "System Type"
294
Hyok S. Choi3c427972009-07-24 12:35:00 +0100295config MMU
296 bool "MMU-based Paged Memory Management Support"
297 default y
298 help
299 Select if you want MMU-based virtualised addressing space
300 support by paged memory management. If unsure, say 'Y'.
301
Russell Kingccf50e22010-03-15 19:03:06 +0000302#
303# The "ARM system type" choice list is ordered alphabetically by option
304# text. Please add new entries in the option alphabetic order.
305#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306choice
307 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100308 default ARCH_VERSATILE if !MMU
309 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310
Rob Herring387798b2012-09-06 13:41:12 -0500311config ARCH_MULTIPLATFORM
312 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100313 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600314 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700315 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500316 select ARM_PATCH_PHYS_VIRT
317 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500318 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600319 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600320 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100321 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500322 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600323 select SPARSE_IRQ
324 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600325
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100326config ARCH_REALVIEW
327 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100328 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100329 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100330 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200331 select COMMON_CLK
332 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100333 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100334 select GPIO_PL061 if GPIOLIB
335 select ICST
336 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000337 select PLAT_VERSATILE
Pawel Moll81cc3f82014-11-25 18:17:34 +0000338 select PLAT_VERSATILE_SCHED_CLOCK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100339 help
340 This enables support for ARM Ltd RealView boards.
341
342config ARCH_VERSATILE
343 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100344 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100346 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100347 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100348 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100349 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900350 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000351 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000352 select PLAT_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100353 select PLAT_VERSATILE_CLOCK
Pawel Moll81cc3f82014-11-25 18:17:34 +0000354 select PLAT_VERSATILE_SCHED_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100355 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100356 help
357 This enables support for ARM Ltd Versatile board.
358
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100359config ARCH_AT91
360 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100361 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100362 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100363 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500364 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800365 select PINCTRL
Nicolas Ferred48346c2014-11-21 16:41:50 +0100366 select PINCTRL_AT91
367 select USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100369 This enables support for systems based on Atmel
Nicolas Ferre32963a82014-11-21 16:44:31 +0100370 AT91RM9200, AT91SAM9 and SAMA5 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100371
Russell King93e22562012-10-12 14:20:52 +0100372config ARCH_CLPS711X
373 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400374 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400375 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400376 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100377 select COMMON_CLK
378 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400379 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400380 select MFD_SYSCON
Alexander Shiyane4e3a372014-08-19 16:31:15 +0400381 select SOC_BUS
Russell King93e22562012-10-12 14:20:52 +0100382 help
383 Support for Cirrus Logic 711x/721x/731x based boards.
384
Russell King788c9702009-04-26 14:21:59 +0100385config ARCH_GEMINI
386 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100387 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200388 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100389 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200390 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100391 help
392 Support for the Cortina Systems Gemini family SoCs
393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394config ARCH_EBSA110
395 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100396 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000397 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100398 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600399 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400400 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700401 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 help
403 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000404 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 Ethernet interface, two PCMCIA sockets, two serial ports and a
406 parallel port.
407
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100408config ARCH_EFM32
409 bool "Energy Micro efm32"
410 depends on !MMU
411 select ARCH_REQUIRE_GPIOLIB
412 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100413 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100414 select CLKSRC_OF
415 select COMMON_CLK
416 select CPU_V7M
417 select GENERIC_CLOCKEVENTS
418 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700419 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100420 select SPARSE_IRQ
421 select USE_OF
422 help
423 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
424 processors.
425
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000426config ARCH_EP93XX
427 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100428 select ARCH_HAS_HOLES_MEMORYMODEL
429 select ARCH_REQUIRE_GPIOLIB
430 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000431 select ARM_AMBA
432 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100433 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100434 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000435 help
436 This enables support for the Cirrus EP93xx series of CPUs.
437
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438config ARCH_FOOTBRIDGE
439 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000440 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000442 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200443 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600444 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400445 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000446 help
447 Support for systems based on the DC21285 companion chip
448 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100450config ARCH_NETX
451 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100452 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100453 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000454 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100455 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100457 This enables support for systems based on the Hilscher NetX Soc
458
Russell King3b938be2007-05-12 11:25:44 +0100459config ARCH_IOP13XX
460 bool "IOP13xx-based"
461 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100462 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400463 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600464 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100465 select PCI
466 select PLAT_IOP
467 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000468 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100469 help
470 Support for Intel's IOP13XX (XScale) family of processors.
471
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100472config ARCH_IOP32X
473 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100474 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100475 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000476 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200477 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600478 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100479 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100480 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000481 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100482 Support for Intel's 80219 and IOP32X (XScale) family of
483 processors.
484
485config ARCH_IOP33X
486 bool "IOP33x-based"
487 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000489 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200490 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600491 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100492 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100493 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100494 help
495 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496
Russell King3b938be2007-05-12 11:25:44 +0100497config ARCH_IXP4XX
498 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100499 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500500 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100501 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100502 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100503 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000504 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100505 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100506 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100507 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600508 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200509 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100510 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100511 help
Russell King3b938be2007-05-12 11:25:44 +0100512 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100513
Saeed Bisharaedabd382009-08-06 15:12:43 +0300514config ARCH_DOVE
515 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300516 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100517 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300518 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100519 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100520 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100521 select PINCTRL
522 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200523 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300524 help
525 Support for the Marvell Dove SoC 88AP510
526
Russell King788c9702009-04-26 14:21:59 +0100527config ARCH_MV78XX0
528 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700529 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100530 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100531 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100532 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100533 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200534 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100535 help
536 Support for the following Marvell MV78xx0 series SoCs:
537 MV781x0, MV782x0.
538
539config ARCH_ORION5X
540 bool "Marvell Orion"
541 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700542 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100543 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100544 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100545 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100546 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200547 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100548 help
549 Support for the following Marvell Orion 5x series SoCs:
550 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
551 Orion-2 (5281), Orion-1-90 (6183).
552
553config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500554 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100555 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100556 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100557 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100558 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100559 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800560 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800561 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800562 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800563 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100564 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400565 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100566 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500567 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100568
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100569config ARCH_KS8695
570 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100571 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200572 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200574 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100575 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100576 help
577 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
578 System-on-Chip devices.
579
Russell King788c9702009-04-26 14:21:59 +0100580config ARCH_W90X900
581 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100582 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100583 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100584 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100585 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100586 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200587 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100588 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
589 At present, the w90x900 has been renamed nuc900, regarding
590 the ARM series product line, you can login the following
591 link address to know more.
592
593 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
594 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400595
Russell King93e22562012-10-12 14:20:52 +0100596config ARCH_LPC32XX
597 bool "NXP LPC32XX"
598 select ARCH_REQUIRE_GPIOLIB
599 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000600 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100601 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100602 select CPU_ARM926T
603 select GENERIC_CLOCKEVENTS
604 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100605 select USE_OF
606 help
607 Support for the NXP LPC32XX family of processors
608
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700610 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100611 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100612 select ARCH_MTD_XIP
613 select ARCH_REQUIRE_GPIOLIB
614 select ARM_CPU_SUSPEND if PM
615 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100616 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100617 select CLKSRC_MMIO
Robert Jarzmik6f6caea2014-07-14 18:52:03 +0200618 select CLKSRC_OF
Eric Miao981d0f32007-07-24 01:22:43 +0100619 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800620 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100621 select HAVE_IDE
622 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800623 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800624 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000625 help
eric miao2c8086a2007-09-11 19:13:17 -0700626 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600628config ARCH_MSM
629 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700630 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700631 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100632 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800633 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800634 Support for Qualcomm MSM/QSD based systems. This runs on the
635 apps processor of the MSM/QSD and depends on a shared memory
636 interface to the modem processor which runs the baseband
637 stack and controls some vital subsystems
638 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800639
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100640config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100641 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100642 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100643 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900644 select CLKDEV_LOOKUP
Magnus Damm0ed82bc2014-08-25 12:45:41 +0900645 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100646 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800647 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800648 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900649 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000650 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000651 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000652 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700653 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200654 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100655 select PM_GENERIC_DOMAINS if PM
Magnus Damm0cdc23d2014-08-25 12:45:50 +0900656 select SH_CLK_CPG
Russell Kingb1b3f492012-10-06 17:12:25 +0100657 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000658 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100659 Support for Renesas ARM SoC platforms using a non-multiplatform
660 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
661 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000662
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663config ARCH_RPC
664 bool "RiscPC"
665 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100666 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100667 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000668 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100669 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100670 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200671 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100672 select HAVE_PATA_PLATFORM
673 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600674 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400675 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700676 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100677 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 On the Acorn Risc-PC, Linux can support the internal IDE disk and
680 CD-ROM interface, serial and parallel port, and the floppy drive.
681
682config ARCH_SA1100
683 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100684 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700685 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select ARCH_SPARSEMEM_ENABLE
687 select CLKDEV_LOOKUP
688 select CLKSRC_MMIO
689 select CPU_FREQ
690 select CPU_SA1100
691 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200692 select HAVE_IDE
Dmitry Eremin-Solenikov1eca42b2014-11-28 15:56:54 +0100693 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100694 select ISA
Dmitry Eremin-Solenikovaffcab32014-11-28 15:55:16 +0100695 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400696 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100697 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000698 help
699 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900701config ARCH_S3C24XX
702 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900703 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100704 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100705 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200706 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800707 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900708 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900709 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900710 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100711 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900712 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600713 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900714 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900716 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
717 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
718 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
719 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900720
Ben Dooksa08ab632008-10-21 14:06:39 +0100721config ARCH_S3C64XX
722 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900723 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200724 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100726 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100727 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200728 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900729 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900730 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800731 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900732 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900733 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900734 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700736 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100738 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select S3C_DEV_NAND
740 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900741 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900742 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900743 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100744 help
745 Samsung S3C64XX series based systems
746
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100747config ARCH_DAVINCI
748 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100749 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700750 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100751 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700752 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100754 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500756 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530757 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100758 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100759 help
760 Support for TI's DaVinci platform.
761
Tony Lindgrena0694862013-01-11 11:24:20 -0800762config ARCH_OMAP1
763 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600764 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100765 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800766 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100767 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200768 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100769 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800771 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800772 select HAVE_IDE
773 select IRQ_DOMAIN
774 select NEED_MACH_IO_H if PCCARD
775 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100776 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800777 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800778
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779endchoice
780
Rob Herring387798b2012-09-06 13:41:12 -0500781menu "Multiple platform selection"
782 depends on ARCH_MULTIPLATFORM
783
784comment "CPU Core family selection"
785
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100786config ARCH_MULTI_V4
787 bool "ARMv4 based platforms (FA526)"
788 depends on !ARCH_MULTI_V6_V7
789 select ARCH_MULTI_V4_V5
790 select CPU_FA526
791
Rob Herring387798b2012-09-06 13:41:12 -0500792config ARCH_MULTI_V4T
793 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500794 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100795 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200796 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
797 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
798 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500799
800config ARCH_MULTI_V5
801 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500802 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100804 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200805 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
806 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500807
808config ARCH_MULTI_V4_V5
809 bool
810
811config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800812 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500813 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600814 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500815
816config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800817 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500818 default y
819 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600821 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500822
823config ARCH_MULTI_V6_V7
824 bool
Rob Herring9352b052014-01-31 15:36:10 -0600825 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500826
827config ARCH_MULTI_CPU_AUTO
828 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
829 select ARCH_MULTI_V5
830
831endmenu
832
Rob Herring05e2a3d2013-12-05 10:04:54 -0600833config ARCH_VIRT
834 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600835 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600836 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600837 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600838 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600839
Russell Kingccf50e22010-03-15 19:03:06 +0000840#
841# This is sorted alphabetically by mach-* pathname. However, plat-*
842# Kconfigs may be included either alphabetically (according to the
843# plat- suffix) or along side the corresponding mach-* source.
844#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200845source "arch/arm/mach-mvebu/Kconfig"
846
Oleksij Rempeld9bfc862014-11-24 12:08:27 +0100847source "arch/arm/mach-asm9260/Kconfig"
848
Russell King95b8f202010-01-14 11:43:54 +0000849source "arch/arm/mach-at91/Kconfig"
850
Anders Berg1d22924e2014-05-23 11:08:35 +0200851source "arch/arm/mach-axxia/Kconfig"
852
Christian Daudt8ac49e02012-11-19 09:46:10 -0800853source "arch/arm/mach-bcm/Kconfig"
854
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200855source "arch/arm/mach-berlin/Kconfig"
856
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857source "arch/arm/mach-clps711x/Kconfig"
858
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300859source "arch/arm/mach-cns3xxx/Kconfig"
860
Russell King95b8f202010-01-14 11:43:54 +0000861source "arch/arm/mach-davinci/Kconfig"
862
Baruch Siachdf8d7422015-01-14 10:40:30 +0200863source "arch/arm/mach-digicolor/Kconfig"
864
Russell King95b8f202010-01-14 11:43:54 +0000865source "arch/arm/mach-dove/Kconfig"
866
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000867source "arch/arm/mach-ep93xx/Kconfig"
868
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869source "arch/arm/mach-footbridge/Kconfig"
870
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200871source "arch/arm/mach-gemini/Kconfig"
872
Rob Herring387798b2012-09-06 13:41:12 -0500873source "arch/arm/mach-highbank/Kconfig"
874
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800875source "arch/arm/mach-hisi/Kconfig"
876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877source "arch/arm/mach-integrator/Kconfig"
878
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100879source "arch/arm/mach-iop32x/Kconfig"
880
881source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882
Dan Williams285f5fa2006-12-07 02:59:39 +0100883source "arch/arm/mach-iop13xx/Kconfig"
884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885source "arch/arm/mach-ixp4xx/Kconfig"
886
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400887source "arch/arm/mach-keystone/Kconfig"
888
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-ks8695/Kconfig"
890
Carlo Caione3b8f5032014-09-10 22:16:59 +0200891source "arch/arm/mach-meson/Kconfig"
892
Russell King95b8f202010-01-14 11:43:54 +0000893source "arch/arm/mach-msm/Kconfig"
894
Jonas Jensen17723fd32013-12-18 13:58:45 +0100895source "arch/arm/mach-moxart/Kconfig"
896
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200897source "arch/arm/mach-mv78xx0/Kconfig"
898
Shawn Guo3995eb82012-09-13 19:48:07 +0800899source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
Matthias Bruggerf682a212014-05-13 01:06:13 +0200901source "arch/arm/mach-mediatek/Kconfig"
902
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800903source "arch/arm/mach-mxs/Kconfig"
904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800906
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000908
Daniel Tang9851ca52013-06-11 18:40:17 +1000909source "arch/arm/mach-nspire/Kconfig"
910
Tony Lindgrend48af152005-07-10 19:58:17 +0100911source "arch/arm/plat-omap/Kconfig"
912
913source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
Tony Lindgren1dbae812005-11-10 14:26:51 +0000915source "arch/arm/mach-omap2/Kconfig"
916
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400917source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400918
Rob Herring387798b2012-09-06 13:41:12 -0500919source "arch/arm/mach-picoxcell/Kconfig"
920
Russell King95b8f202010-01-14 11:43:54 +0000921source "arch/arm/mach-pxa/Kconfig"
922source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/mach-mmp/Kconfig"
925
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600926source "arch/arm/mach-qcom/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-realview/Kconfig"
929
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200930source "arch/arm/mach-rockchip/Kconfig"
931
Russell King95b8f202010-01-14 11:43:54 +0000932source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300933
Rob Herring387798b2012-09-06 13:41:12 -0500934source "arch/arm/mach-socfpga/Kconfig"
935
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100936source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100937
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100938source "arch/arm/mach-sti/Kconfig"
939
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900940source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
Ben Dooks431107e2010-01-26 10:11:04 +0900942source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100943
Kukjin Kim170f4e42010-02-24 16:40:44 +0900944source "arch/arm/mach-s5pv210/Kconfig"
945
Kukjin Kim83014572011-11-06 13:54:56 +0900946source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500947source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900948
Russell King882d01f2010-03-02 23:40:15 +0000949source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
Maxime Ripard3b526342012-11-08 12:40:16 +0100951source "arch/arm/mach-sunxi/Kconfig"
952
Barry Song156a0992012-08-23 13:41:58 +0800953source "arch/arm/mach-prima2/Kconfig"
954
Erik Gillingc5f80062010-01-21 16:53:02 -0800955source "arch/arm/mach-tegra/Kconfig"
956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
961source "arch/arm/mach-versatile/Kconfig"
962
Russell Kingceade892010-02-11 21:44:53 +0000963source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000964source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000965
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300966source "arch/arm/mach-vt8500/Kconfig"
967
wanzongshun7ec80dd2008-12-03 03:55:38 +0100968source "arch/arm/mach-w90x900/Kconfig"
969
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600970source "arch/arm/mach-zynq/Kconfig"
971
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972# Definitions to make life easier
973config ARCH_ACORN
974 bool
975
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100976config PLAT_IOP
977 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700978 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100979
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400980config PLAT_ORION
981 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100982 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100983 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100984 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200985 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400986
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200987config PLAT_ORION_LEGACY
988 bool
989 select PLAT_ORION
990
Eric Miaobd5ce432009-01-20 12:06:01 +0800991config PLAT_PXA
992 bool
993
Russell Kingf4b8b312010-01-14 12:48:06 +0000994config PLAT_VERSATILE
995 bool
996
Russell Kinge3887712010-01-14 13:30:16 +0000997config ARM_TIMER_SP804
998 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100999 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001000 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001001
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001002source "arch/arm/firmware/Kconfig"
1003
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004source arch/arm/mm/Kconfig
1005
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001006config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001007 bool "Enable iWMMXt support"
1008 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1009 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001010 help
1011 Enable support for iWMMXt context switching at run time if
1012 running on a CPU that supports it.
1013
eric miao52108642010-12-13 09:42:34 +01001014config MULTI_IRQ_HANDLER
1015 bool
1016 help
1017 Allow each machine to specify it's own IRQ handler at run time.
1018
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001019if !MMU
1020source "arch/arm/Kconfig-nommu"
1021endif
1022
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001023config PJ4B_ERRATA_4742
1024 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1025 depends on CPU_PJ4B && MACH_ARMADA_370
1026 default y
1027 help
1028 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1029 Event (WFE) IDLE states, a specific timing sensitivity exists between
1030 the retiring WFI/WFE instructions and the newly issued subsequent
1031 instructions. This sensitivity can result in a CPU hang scenario.
1032 Workaround:
1033 The software must insert either a Data Synchronization Barrier (DSB)
1034 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1035 instruction
1036
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001037config ARM_ERRATA_326103
1038 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1039 depends on CPU_V6
1040 help
1041 Executing a SWP instruction to read-only memory does not set bit 11
1042 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1043 treat the access as a read, preventing a COW from occurring and
1044 causing the faulting task to livelock.
1045
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001046config ARM_ERRATA_411920
1047 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001048 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001049 help
1050 Invalidation of the Instruction Cache operation can
1051 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1052 It does not affect the MPCore. This option enables the ARM Ltd.
1053 recommended workaround.
1054
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001055config ARM_ERRATA_430973
1056 bool "ARM errata: Stale prediction on replaced interworking branch"
1057 depends on CPU_V7
1058 help
1059 This option enables the workaround for the 430973 Cortex-A8
1060 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1061 interworking branch is replaced with another code sequence at the
1062 same virtual address, whether due to self-modifying code or virtual
1063 to physical address re-mapping, Cortex-A8 does not recover from the
1064 stale interworking branch prediction. This results in Cortex-A8
1065 executing the new code sequence in the incorrect ARM or Thumb state.
1066 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1067 and also flushes the branch target cache at every context switch.
1068 Note that setting specific bits in the ACTLR register may not be
1069 available in non-secure mode.
1070
Catalin Marinas855c5512009-04-30 17:06:15 +01001071config ARM_ERRATA_458693
1072 bool "ARM errata: Processor deadlock when a false hazard is created"
1073 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001074 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001075 help
1076 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1077 erratum. For very specific sequences of memory operations, it is
1078 possible for a hazard condition intended for a cache line to instead
1079 be incorrectly associated with a different cache line. This false
1080 hazard might then cause a processor deadlock. The workaround enables
1081 the L1 caching of the NEON accesses and disables the PLD instruction
1082 in the ACTLR register. Note that setting specific bits in the ACTLR
1083 register may not be available in non-secure mode.
1084
Catalin Marinas0516e462009-04-30 17:06:20 +01001085config ARM_ERRATA_460075
1086 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1087 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001088 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001089 help
1090 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1091 erratum. Any asynchronous access to the L2 cache may encounter a
1092 situation in which recent store transactions to the L2 cache are lost
1093 and overwritten with stale memory contents from external memory. The
1094 workaround disables the write-allocate mode for the L2 cache via the
1095 ACTLR register. Note that setting specific bits in the ACTLR register
1096 may not be available in non-secure mode.
1097
Will Deacon9f050272010-09-14 09:51:43 +01001098config ARM_ERRATA_742230
1099 bool "ARM errata: DMB operation may be faulty"
1100 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001101 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001102 help
1103 This option enables the workaround for the 742230 Cortex-A9
1104 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1105 between two write operations may not ensure the correct visibility
1106 ordering of the two writes. This workaround sets a specific bit in
1107 the diagnostic register of the Cortex-A9 which causes the DMB
1108 instruction to behave as a DSB, ensuring the correct behaviour of
1109 the two writes.
1110
Will Deacona672e992010-09-14 09:53:02 +01001111config ARM_ERRATA_742231
1112 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1113 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001114 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001115 help
1116 This option enables the workaround for the 742231 Cortex-A9
1117 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1118 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1119 accessing some data located in the same cache line, may get corrupted
1120 data due to bad handling of the address hazard when the line gets
1121 replaced from one of the CPUs at the same time as another CPU is
1122 accessing it. This workaround sets specific bits in the diagnostic
1123 register of the Cortex-A9 which reduces the linefill issuing
1124 capabilities of the processor.
1125
Jon Medhurst69155792013-06-07 10:35:35 +01001126config ARM_ERRATA_643719
1127 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1128 depends on CPU_V7 && SMP
1129 help
1130 This option enables the workaround for the 643719 Cortex-A9 (prior to
1131 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1132 register returns zero when it should return one. The workaround
1133 corrects this value, ensuring cache maintenance operations which use
1134 it behave as intended and avoiding data corruption.
1135
Will Deaconcdf357f2010-08-05 11:20:51 +01001136config ARM_ERRATA_720789
1137 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001138 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001139 help
1140 This option enables the workaround for the 720789 Cortex-A9 (prior to
1141 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1142 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1143 As a consequence of this erratum, some TLB entries which should be
1144 invalidated are not, resulting in an incoherency in the system page
1145 tables. The workaround changes the TLB flushing routines to invalidate
1146 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001147
1148config ARM_ERRATA_743622
1149 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1150 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001151 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001152 help
1153 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001154 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001155 optimisation in the Cortex-A9 Store Buffer may lead to data
1156 corruption. This workaround sets a specific bit in the diagnostic
1157 register of the Cortex-A9 which disables the Store Buffer
1158 optimisation, preventing the defect from occurring. This has no
1159 visible impact on the overall performance or power consumption of the
1160 processor.
1161
Will Deacon9a27c272011-02-18 16:36:35 +01001162config ARM_ERRATA_751472
1163 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001164 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001165 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001166 help
1167 This option enables the workaround for the 751472 Cortex-A9 (prior
1168 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1169 completion of a following broadcasted operation if the second
1170 operation is received by a CPU before the ICIALLUIS has completed,
1171 potentially leading to corrupted entries in the cache or TLB.
1172
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001173config ARM_ERRATA_754322
1174 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1175 depends on CPU_V7
1176 help
1177 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1178 r3p*) erratum. A speculative memory access may cause a page table walk
1179 which starts prior to an ASID switch but completes afterwards. This
1180 can populate the micro-TLB with a stale entry which may be hit with
1181 the new ASID. This workaround places two dsb instructions in the mm
1182 switching code so that no page table walks can cross the ASID switch.
1183
Will Deacon5dab26af2011-03-04 12:38:54 +01001184config ARM_ERRATA_754327
1185 bool "ARM errata: no automatic Store Buffer drain"
1186 depends on CPU_V7 && SMP
1187 help
1188 This option enables the workaround for the 754327 Cortex-A9 (prior to
1189 r2p0) erratum. The Store Buffer does not have any automatic draining
1190 mechanism and therefore a livelock may occur if an external agent
1191 continuously polls a memory location waiting to observe an update.
1192 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1193 written polling loops from denying visibility of updates to memory.
1194
Catalin Marinas145e10e2011-08-15 11:04:41 +01001195config ARM_ERRATA_364296
1196 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001197 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001198 help
1199 This options enables the workaround for the 364296 ARM1136
1200 r0p2 erratum (possible cache data corruption with
1201 hit-under-miss enabled). It sets the undocumented bit 31 in
1202 the auxiliary control register and the FI bit in the control
1203 register, thus disabling hit-under-miss without putting the
1204 processor into full low interrupt latency mode. ARM11MPCore
1205 is not affected.
1206
Will Deaconf630c1b2011-09-15 11:45:15 +01001207config ARM_ERRATA_764369
1208 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1209 depends on CPU_V7 && SMP
1210 help
1211 This option enables the workaround for erratum 764369
1212 affecting Cortex-A9 MPCore with two or more processors (all
1213 current revisions). Under certain timing circumstances, a data
1214 cache line maintenance operation by MVA targeting an Inner
1215 Shareable memory region may fail to proceed up to either the
1216 Point of Coherency or to the Point of Unification of the
1217 system. This workaround adds a DSB instruction before the
1218 relevant cache maintenance functions and sets a specific bit
1219 in the diagnostic control register of the SCU.
1220
Simon Horman7253b852012-09-28 02:12:45 +01001221config ARM_ERRATA_775420
1222 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1223 depends on CPU_V7
1224 help
1225 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1226 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1227 operation aborts with MMU exception, it might cause the processor
1228 to deadlock. This workaround puts DSB before executing ISB if
1229 an abort may occur on cache maintenance.
1230
Catalin Marinas93dc6882013-03-26 23:35:04 +01001231config ARM_ERRATA_798181
1232 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1233 depends on CPU_V7 && SMP
1234 help
1235 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1236 adequately shooting down all use of the old entries. This
1237 option enables the Linux kernel workaround for this erratum
1238 which sends an IPI to the CPUs that are running the same ASID
1239 as the one being invalidated.
1240
Will Deacon84b65042013-08-20 17:29:55 +01001241config ARM_ERRATA_773022
1242 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1243 depends on CPU_V7
1244 help
1245 This option enables the workaround for the 773022 Cortex-A15
1246 (up to r0p4) erratum. In certain rare sequences of code, the
1247 loop buffer may deliver incorrect instructions. This
1248 workaround disables the loop buffer to avoid the erratum.
1249
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250endmenu
1251
1252source "arch/arm/common/Kconfig"
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254menu "Bus support"
1255
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256config ISA
1257 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001258 help
1259 Find out whether you have ISA slots on your motherboard. ISA is the
1260 name of a bus system, i.e. the way the CPU talks to the other stuff
1261 inside your box. Other bus systems are PCI, EISA, MicroChannel
1262 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1263 newer boards don't support it. If you have ISA, say Y, otherwise N.
1264
Russell King065909b2006-01-04 15:44:16 +00001265# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266config ISA_DMA
1267 bool
Russell King065909b2006-01-04 15:44:16 +00001268 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269
Russell King065909b2006-01-04 15:44:16 +00001270# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001271config ISA_DMA_API
1272 bool
Al Viro5cae8412005-05-04 05:39:22 +01001273
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001275 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 help
1277 Find out whether you have a PCI motherboard. PCI is the name of a
1278 bus system, i.e. the way the CPU talks to the other stuff inside
1279 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1280 VESA. If you have PCI, say Y, otherwise N.
1281
Anton Vorontsov52882172010-04-19 13:20:49 +01001282config PCI_DOMAINS
1283 bool
1284 depends on PCI
1285
Lorenzo Pieralisi8c7d14742014-11-21 11:29:26 +00001286config PCI_DOMAINS_GENERIC
1287 def_bool PCI_DOMAINS
1288
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001289config PCI_NANOENGINE
1290 bool "BSE nanoEngine PCI support"
1291 depends on SA1100_NANOENGINE
1292 help
1293 Enable PCI on the BSE nanoEngine board.
1294
Matthew Wilcox36e23592007-07-10 10:54:40 -06001295config PCI_SYSCALL
1296 def_bool PCI
1297
Mike Rapoporta0113a92007-11-25 08:55:34 +01001298config PCI_HOST_ITE8152
1299 bool
1300 depends on PCI && MACH_ARMCORE
1301 default y
1302 select DMABOUNCE
1303
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001305source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306
1307source "drivers/pcmcia/Kconfig"
1308
1309endmenu
1310
1311menu "Kernel Features"
1312
Dave Martin3b556582011-12-07 15:38:04 +00001313config HAVE_SMP
1314 bool
1315 help
1316 This option should be selected by machines which have an SMP-
1317 capable CPU.
1318
1319 The only effect of this option is to make the SMP-related
1320 options available to the user for configuration.
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001323 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001324 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001325 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001326 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001327 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 help
1329 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001330 a system with only one CPU, say N. If you have a system with more
1331 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332
Robert Graffham4a474152014-01-23 15:55:29 -08001333 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001335 you say Y here, the kernel will run on many, but not all,
1336 uniprocessor machines. On a uniprocessor machine, the kernel
1337 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338
Paul Bolle395cf962011-08-15 02:02:26 +02001339 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001341 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342
1343 If you don't know what to do here, say N.
1344
Russell Kingf00ec482010-09-04 10:47:48 +01001345config SMP_ON_UP
1346 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001347 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001348 default y
1349 help
1350 SMP kernels contain instructions which fail on non-SMP processors.
1351 Enabling this option allows the kernel to modify itself to make
1352 these instructions safe. Disabling it allows about 1K of space
1353 savings.
1354
1355 If you don't know what to do here, say Y.
1356
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001357config ARM_CPU_TOPOLOGY
1358 bool "Support cpu topology definition"
1359 depends on SMP && CPU_V7
1360 default y
1361 help
1362 Support ARM cpu topology definition. The MPIDR register defines
1363 affinity between processors which is then used to describe the cpu
1364 topology of an ARM System.
1365
1366config SCHED_MC
1367 bool "Multi-core scheduler support"
1368 depends on ARM_CPU_TOPOLOGY
1369 help
1370 Multi-core scheduler support improves the CPU scheduler's decision
1371 making when dealing with multi-core CPU chips at a cost of slightly
1372 increased overhead in some places. If unsure say N here.
1373
1374config SCHED_SMT
1375 bool "SMT scheduler support"
1376 depends on ARM_CPU_TOPOLOGY
1377 help
1378 Improves the CPU scheduler's decision making when dealing with
1379 MultiThreading at a cost of slightly increased overhead in some
1380 places. If unsure say N here.
1381
Russell Kinga8cbcd92009-05-16 11:51:14 +01001382config HAVE_ARM_SCU
1383 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001384 help
1385 This option enables support for the ARM system coherency unit
1386
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001387config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001388 bool "Architected timer support"
1389 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001390 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001391 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001392 help
1393 This option enables support for the ARM architected timer
1394
Russell Kingf32f4ce2009-05-16 12:14:21 +01001395config HAVE_ARM_TWD
1396 bool
1397 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001398 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001399 help
1400 This options enables support for the ARM timer and watchdog unit
1401
Nicolas Pitree8db2882012-04-12 02:45:22 -04001402config MCPM
1403 bool "Multi-Cluster Power Management"
1404 depends on CPU_V7 && SMP
1405 help
1406 This option provides the common power management infrastructure
1407 for (multi-)cluster based systems, such as big.LITTLE based
1408 systems.
1409
Haojian Zhuangebf4a5c2014-04-15 14:52:00 +08001410config MCPM_QUAD_CLUSTER
1411 bool
1412 depends on MCPM
1413 help
1414 To avoid wasting resources unnecessarily, MCPM only supports up
1415 to 2 clusters by default.
1416 Platforms with 3 or 4 clusters that use MCPM must select this
1417 option to allow the additional clusters to be managed.
1418
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001419config BIG_LITTLE
1420 bool "big.LITTLE support (Experimental)"
1421 depends on CPU_V7 && SMP
1422 select MCPM
1423 help
1424 This option enables support selections for the big.LITTLE
1425 system architecture.
1426
1427config BL_SWITCHER
1428 bool "big.LITTLE switcher support"
1429 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001430 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001431 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001432 help
1433 The big.LITTLE "switcher" provides the core functionality to
1434 transparently handle transition between a cluster of A15's
1435 and a cluster of A7's in a big.LITTLE system.
1436
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001437config BL_SWITCHER_DUMMY_IF
1438 tristate "Simple big.LITTLE switcher user interface"
1439 depends on BL_SWITCHER && DEBUG_KERNEL
1440 help
1441 This is a simple and dummy char dev interface to control
1442 the big.LITTLE switcher core code. It is meant for
1443 debugging purposes only.
1444
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001445choice
1446 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001447 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001448 default VMSPLIT_3G
1449 help
1450 Select the desired split between kernel and user memory.
1451
1452 If you are not absolutely sure what you are doing, leave this
1453 option alone!
1454
1455 config VMSPLIT_3G
1456 bool "3G/1G user/kernel split"
1457 config VMSPLIT_2G
1458 bool "2G/2G user/kernel split"
1459 config VMSPLIT_1G
1460 bool "1G/3G user/kernel split"
1461endchoice
1462
1463config PAGE_OFFSET
1464 hex
Russell King006fa252014-02-26 19:40:46 +00001465 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001466 default 0x40000000 if VMSPLIT_1G
1467 default 0x80000000 if VMSPLIT_2G
1468 default 0xC0000000
1469
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470config NR_CPUS
1471 int "Maximum number of CPUs (2-32)"
1472 range 2 32
1473 depends on SMP
1474 default "4"
1475
Russell Kinga054a812005-11-02 22:24:33 +00001476config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001477 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001478 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001479 help
1480 Say Y here to experiment with turning CPUs off and on. CPUs
1481 can be controlled through /sys/devices/system/cpu.
1482
Will Deacon2bdd4242012-12-12 19:20:52 +00001483config ARM_PSCI
1484 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1485 depends on CPU_V7
1486 help
1487 Say Y here if you want Linux to communicate with system firmware
1488 implementing the PSCI specification for CPU-centric power
1489 management operations described in ARM document number ARM DEN
1490 0022A ("Power State Coordination Interface System Software on
1491 ARM processors").
1492
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001493# The GPIO number here must be sorted by descending number. In case of
1494# a multiplatform kernel, we just want the highest value required by the
1495# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001496config ARCH_NR_GPIO
1497 int
Michal Simek6a4d8f32015-01-15 08:42:42 +01001498 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
Tomasz Figaaa425872014-07-03 13:17:12 +02001499 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1500 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001501 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001502 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001503 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001504 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001505 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001506 default 0
1507 help
1508 Maximum number of GPIOs in the system.
1509
1510 If unsure, leave the default value.
1511
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001512source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513
Russell Kingc9218b12013-04-27 23:31:10 +01001514config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001515 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001516 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001517 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001518 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001519 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001520 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001521
1522choice
Russell King47d84682013-09-10 23:47:55 +01001523 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001524 prompt "Timer frequency"
1525
1526config HZ_100
1527 bool "100 Hz"
1528
1529config HZ_200
1530 bool "200 Hz"
1531
1532config HZ_250
1533 bool "250 Hz"
1534
1535config HZ_300
1536 bool "300 Hz"
1537
1538config HZ_500
1539 bool "500 Hz"
1540
1541config HZ_1000
1542 bool "1000 Hz"
1543
1544endchoice
1545
1546config HZ
1547 int
Russell King47d84682013-09-10 23:47:55 +01001548 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001549 default 100 if HZ_100
1550 default 200 if HZ_200
1551 default 250 if HZ_250
1552 default 300 if HZ_300
1553 default 500 if HZ_500
1554 default 1000
1555
1556config SCHED_HRTICK
1557 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001558
Catalin Marinas16c79652009-07-24 12:33:02 +01001559config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001560 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001561 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001562 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001563 select AEABI
1564 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001565 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001566 help
1567 By enabling this option, the kernel will be compiled in
1568 Thumb-2 mode. A compiler/assembler that understand the unified
1569 ARM-Thumb syntax is needed.
1570
1571 If unsure, say N.
1572
Dave Martin6f685c52011-03-03 11:41:12 +01001573config THUMB2_AVOID_R_ARM_THM_JUMP11
1574 bool "Work around buggy Thumb-2 short branch relocations in gas"
1575 depends on THUMB2_KERNEL && MODULES
1576 default y
1577 help
1578 Various binutils versions can resolve Thumb-2 branches to
1579 locally-defined, preemptible global symbols as short-range "b.n"
1580 branch instructions.
1581
1582 This is a problem, because there's no guarantee the final
1583 destination of the symbol, or any candidate locations for a
1584 trampoline, are within range of the branch. For this reason, the
1585 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1586 relocation in modules at all, and it makes little sense to add
1587 support.
1588
1589 The symptom is that the kernel fails with an "unsupported
1590 relocation" error when loading some modules.
1591
1592 Until fixed tools are available, passing
1593 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1594 code which hits this problem, at the cost of a bit of extra runtime
1595 stack usage in some cases.
1596
1597 The problem is described in more detail at:
1598 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1599
1600 Only Thumb-2 kernels are affected.
1601
1602 Unless you are sure your tools don't have this problem, say Y.
1603
Catalin Marinas0becb082009-07-24 12:32:53 +01001604config ARM_ASM_UNIFIED
1605 bool
1606
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001607config AEABI
1608 bool "Use the ARM EABI to compile the kernel"
1609 help
1610 This option allows for the kernel to be compiled using the latest
1611 ARM ABI (aka EABI). This is only useful if you are using a user
1612 space environment that is also compiled with EABI.
1613
1614 Since there are major incompatibilities between the legacy ABI and
1615 EABI, especially with regard to structure member alignment, this
1616 option also changes the kernel syscall calling convention to
1617 disambiguate both ABIs and allow for backward compatibility support
1618 (selected with CONFIG_OABI_COMPAT).
1619
1620 To use this you need GCC version 4.0.0 or later.
1621
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001622config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001623 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001624 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001625 help
1626 This option preserves the old syscall interface along with the
1627 new (ARM EABI) one. It also provides a compatibility layer to
1628 intercept syscalls that have structure arguments which layout
1629 in memory differs between the legacy ABI and the new ARM EABI
1630 (only for non "thumb" binaries). This option adds a tiny
1631 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001632
1633 The seccomp filter system will not be available when this is
1634 selected, since there is no way yet to sensibly distinguish
1635 between calling conventions during filtering.
1636
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001637 If you know you'll be using only pure EABI user space then you
1638 can say N here. If this option is not selected and you attempt
1639 to execute a legacy ABI binary then the result will be
1640 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001641 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001642
Mel Gormaneb335752009-05-13 17:34:48 +01001643config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001644 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001645
Russell King05944d72006-11-30 20:43:51 +00001646config ARCH_SPARSEMEM_ENABLE
1647 bool
1648
Russell King07a2f732008-10-01 21:39:58 +01001649config ARCH_SPARSEMEM_DEFAULT
1650 def_bool ARCH_SPARSEMEM_ENABLE
1651
Russell King05944d72006-11-30 20:43:51 +00001652config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001653 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001654
Will Deacon7b7bf492011-05-19 13:21:14 +01001655config HAVE_ARCH_PFN_VALID
1656 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1657
Steve Capperb8cd51a2014-10-09 15:29:20 -07001658config HAVE_GENERIC_RCU_GUP
1659 def_bool y
1660 depends on ARM_LPAE
1661
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001662config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001663 bool "High Memory Support"
1664 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001665 help
1666 The address space of ARM processors is only 4 Gigabytes large
1667 and it has to accommodate user address space, kernel address
1668 space as well as some memory mapped IO. That means that, if you
1669 have a large amount of physical memory and/or IO, not all of the
1670 memory can be "permanently mapped" by the kernel. The physical
1671 memory that is not permanently mapped is called "high memory".
1672
1673 Depending on the selected kernel/user memory split, minimum
1674 vmalloc space and actual amount of RAM, you may not need this
1675 option which should result in a slightly faster kernel.
1676
1677 If unsure, say n.
1678
Russell King65cec8e2009-08-17 20:02:06 +01001679config HIGHPTE
1680 bool "Allocate 2nd-level pagetables from highmem"
1681 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001682
Jamie Iles1b8873a2010-02-02 20:25:44 +01001683config HW_PERF_EVENTS
1684 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001685 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001686 default y
1687 help
1688 Enable hardware performance counter support for perf events. If
1689 disabled, perf events will use software events only.
1690
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001691config SYS_SUPPORTS_HUGETLBFS
1692 def_bool y
1693 depends on ARM_LPAE
1694
Catalin Marinas8d962502012-07-25 14:39:26 +01001695config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1696 def_bool y
1697 depends on ARM_LPAE
1698
Steven Capper4bfab202013-07-26 14:58:22 +01001699config ARCH_WANT_GENERAL_HUGETLB
1700 def_bool y
1701
Dave Hansen3f22ab22005-06-23 00:07:43 -07001702source "mm/Kconfig"
1703
Magnus Dammc1b2d972010-07-05 10:00:11 +01001704config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001705 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1706 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001707 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001708 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001709 default "11"
1710 help
1711 The kernel memory allocator divides physically contiguous memory
1712 blocks into "zones", where each zone is a power of two number of
1713 pages. This option selects the largest power of two that the kernel
1714 keeps in the memory allocator. If you need to allocate very large
1715 blocks of physically contiguous memory, then you may need to
1716 increase this value.
1717
1718 This config option is actually maximum order plus one. For example,
1719 a value of 11 means that the largest free memory block is 2^10 pages.
1720
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721config ALIGNMENT_TRAP
1722 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001723 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001725 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001727 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1729 address divisible by 4. On 32-bit ARM processors, these non-aligned
1730 fetch/store instructions will be emulated in software if you say
1731 here, which has a severe performance impact. This is necessary for
1732 correct operation of some network protocols. With an IP-only
1733 configuration it is safe to say N, otherwise say Y.
1734
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001735config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001736 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1737 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001738 default y if CPU_FEROCEON
1739 help
1740 Implement faster copy_to_user and clear_user methods for CPU
1741 cores where a 8-word STM instruction give significantly higher
1742 memory write throughput than a sequence of individual 32bit stores.
1743
1744 A possible side effect is a slight increase in scheduling latency
1745 between threads sharing the same address space if they invoke
1746 such copy operations with large buffers.
1747
1748 However, if the CPU data cache is using a write-allocate mode,
1749 this option is unlikely to provide any performance gain.
1750
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001751config SECCOMP
1752 bool
1753 prompt "Enable seccomp to safely compute untrusted bytecode"
1754 ---help---
1755 This kernel feature is useful for number crunching applications
1756 that may need to compute untrusted bytecode during their
1757 execution. By using pipes or other transports made available to
1758 the process as file descriptors supporting the read/write
1759 syscalls, it's possible to isolate those applications in
1760 their own address space using seccomp. Once seccomp is
1761 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1762 and the task is only allowed to execute a few safe syscalls
1763 defined by each seccomp mode.
1764
Stefano Stabellini06e62952013-10-15 15:47:14 +00001765config SWIOTLB
1766 def_bool y
1767
1768config IOMMU_HELPER
1769 def_bool SWIOTLB
1770
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001771config XEN_DOM0
1772 def_bool y
1773 depends on XEN
1774
1775config XEN
Julien Grallc2ba1f72014-09-17 14:07:06 -07001776 bool "Xen guest support on ARM"
Ian Campbell85323a92013-03-07 07:17:25 +00001777 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001778 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001779 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001780 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001781 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001782 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001783 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001784 help
1785 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1786
Linus Torvalds1da177e2005-04-16 15:20:36 -07001787endmenu
1788
1789menu "Boot options"
1790
Grant Likely9eb8f672011-04-28 14:27:20 -06001791config USE_OF
1792 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001793 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001794 select OF
1795 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001796 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001797 help
1798 Include support for flattened device tree machine descriptions.
1799
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001800config ATAGS
1801 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1802 default y
1803 help
1804 This is the traditional way of passing data to the kernel at boot
1805 time. If you are solely relying on the flattened device tree (or
1806 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1807 to remove ATAGS support from your kernel binary. If unsure,
1808 leave this to y.
1809
1810config DEPRECATED_PARAM_STRUCT
1811 bool "Provide old way to pass kernel parameters"
1812 depends on ATAGS
1813 help
1814 This was deprecated in 2001 and announced to live on for 5 years.
1815 Some old boot loaders still use this way.
1816
Linus Torvalds1da177e2005-04-16 15:20:36 -07001817# Compressed boot loader in ROM. Yes, we really want to ask about
1818# TEXT and BSS so we preserve their values in the config files.
1819config ZBOOT_ROM_TEXT
1820 hex "Compressed ROM boot loader base address"
1821 default "0"
1822 help
1823 The physical address at which the ROM-able zImage is to be
1824 placed in the target. Platforms which normally make use of
1825 ROM-able zImage formats normally set this to a suitable
1826 value in their defconfig file.
1827
1828 If ZBOOT_ROM is not enabled, this has no effect.
1829
1830config ZBOOT_ROM_BSS
1831 hex "Compressed ROM boot loader BSS address"
1832 default "0"
1833 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001834 The base address of an area of read/write memory in the target
1835 for the ROM-able zImage which must be available while the
1836 decompressor is running. It must be large enough to hold the
1837 entire decompressed kernel plus an additional 128 KiB.
1838 Platforms which normally make use of ROM-able zImage formats
1839 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840
1841 If ZBOOT_ROM is not enabled, this has no effect.
1842
1843config ZBOOT_ROM
1844 bool "Compressed boot loader in ROM/flash"
1845 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001846 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847 help
1848 Say Y here if you intend to execute your compressed kernel image
1849 (zImage) directly from ROM or flash. If unsure, say N.
1850
Simon Horman090ab3f2011-04-26 06:29:53 +01001851choice
1852 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001853 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001854 default ZBOOT_ROM_NONE
1855 help
1856 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001857 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001858 kernel image to an MMC or SD card and boot the kernel straight
1859 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001860 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001861 rest the kernel image to RAM.
1862
1863config ZBOOT_ROM_NONE
1864 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1865 help
1866 Do not load image from SD or MMC
1867
Simon Hormanf45b1142011-01-11 04:01:08 +01001868config ZBOOT_ROM_MMCIF
1869 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001870 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001871 Load image from MMCIF hardware block.
1872
1873config ZBOOT_ROM_SH_MOBILE_SDHI
1874 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1875 help
1876 Load image from SDHI hardware block
1877
1878endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001879
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001880config ARM_APPENDED_DTB
1881 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001882 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001883 help
1884 With this option, the boot code will look for a device tree binary
1885 (DTB) appended to zImage
1886 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1887
1888 This is meant as a backward compatibility convenience for those
1889 systems with a bootloader that can't be upgraded to accommodate
1890 the documented boot protocol using a device tree.
1891
1892 Beware that there is very little in terms of protection against
1893 this option being confused by leftover garbage in memory that might
1894 look like a DTB header after a reboot if no actual DTB is appended
1895 to zImage. Do not leave this option active in a production kernel
1896 if you don't intend to always append a DTB. Proper passing of the
1897 location into r2 of a bootloader provided DTB is always preferable
1898 to this option.
1899
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001900config ARM_ATAG_DTB_COMPAT
1901 bool "Supplement the appended DTB with traditional ATAG information"
1902 depends on ARM_APPENDED_DTB
1903 help
1904 Some old bootloaders can't be updated to a DTB capable one, yet
1905 they provide ATAGs with memory configuration, the ramdisk address,
1906 the kernel cmdline string, etc. Such information is dynamically
1907 provided by the bootloader and can't always be stored in a static
1908 DTB. To allow a device tree enabled kernel to be used with such
1909 bootloaders, this option allows zImage to extract the information
1910 from the ATAG list and store it at run time into the appended DTB.
1911
Genoud Richardd0f34a112012-06-26 16:37:59 +01001912choice
1913 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1914 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1915
1916config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1917 bool "Use bootloader kernel arguments if available"
1918 help
1919 Uses the command-line options passed by the boot loader instead of
1920 the device tree bootargs property. If the boot loader doesn't provide
1921 any, the device tree bootargs property will be used.
1922
1923config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1924 bool "Extend with bootloader kernel arguments"
1925 help
1926 The command-line arguments provided by the boot loader will be
1927 appended to the the device tree bootargs property.
1928
1929endchoice
1930
Linus Torvalds1da177e2005-04-16 15:20:36 -07001931config CMDLINE
1932 string "Default kernel command string"
1933 default ""
1934 help
1935 On some architectures (EBSA110 and CATS), there is currently no way
1936 for the boot loader to pass arguments to the kernel. For these
1937 architectures, you should supply some command-line options at build
1938 time by entering them here. As a minimum, you should specify the
1939 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1940
Victor Boivie4394c122011-05-04 17:07:55 +01001941choice
1942 prompt "Kernel command line type" if CMDLINE != ""
1943 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001944 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001945
1946config CMDLINE_FROM_BOOTLOADER
1947 bool "Use bootloader kernel arguments if available"
1948 help
1949 Uses the command-line options passed by the boot loader. If
1950 the boot loader doesn't provide any, the default kernel command
1951 string provided in CMDLINE will be used.
1952
1953config CMDLINE_EXTEND
1954 bool "Extend bootloader kernel arguments"
1955 help
1956 The command-line arguments provided by the boot loader will be
1957 appended to the default kernel command string.
1958
Alexander Holler92d20402010-02-16 19:04:53 +01001959config CMDLINE_FORCE
1960 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001961 help
1962 Always use the default kernel command string, even if the boot
1963 loader passes other arguments to the kernel.
1964 This is useful if you cannot or don't want to change the
1965 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001966endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001967
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968config XIP_KERNEL
1969 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001970 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001971 help
1972 Execute-In-Place allows the kernel to run from non-volatile storage
1973 directly addressable by the CPU, such as NOR flash. This saves RAM
1974 space since the text section of the kernel is not loaded from flash
1975 to RAM. Read-write sections, such as the data section and stack,
1976 are still copied to RAM. The XIP kernel is not compressed since
1977 it has to run directly from flash, so it will take more space to
1978 store it. The flash address used to link the kernel object files,
1979 and for storing it, is configuration dependent. Therefore, if you
1980 say Y here, you must know the proper physical address where to
1981 store the kernel image depending on your own flash memory usage.
1982
1983 Also note that the make target becomes "make xipImage" rather than
1984 "make zImage" or "make Image". The final kernel binary to put in
1985 ROM memory will be arch/arm/boot/xipImage.
1986
1987 If unsure, say N.
1988
1989config XIP_PHYS_ADDR
1990 hex "XIP Kernel Physical Location"
1991 depends on XIP_KERNEL
1992 default "0x00080000"
1993 help
1994 This is the physical address in your flash memory the kernel will
1995 be linked for and stored to. This address is dependent on your
1996 own flash usage.
1997
Richard Purdiec587e4a2007-02-06 21:29:00 +01001998config KEXEC
1999 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002000 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002001 help
2002 kexec is a system call that implements the ability to shutdown your
2003 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002004 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002005 you can start any kernel with it, not just Linux.
2006
2007 It is an ongoing process to be certain the hardware in a machine
2008 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002009 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002010
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002011config ATAGS_PROC
2012 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002013 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002014 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002015 help
2016 Should the atags used to boot the kernel be exported in an "atags"
2017 file in procfs. Useful with kexec.
2018
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002019config CRASH_DUMP
2020 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002021 help
2022 Generate crash dump after being started by kexec. This should
2023 be normally only set in special crash dump kernels which are
2024 loaded in the main kernel with kexec-tools into a specially
2025 reserved region and then later executed after a crash by
2026 kdump/kexec. The crash dump kernel must be compiled to a
2027 memory address not used by the main kernel
2028
2029 For more details see Documentation/kdump/kdump.txt
2030
Eric Miaoe69edc792010-07-05 15:56:50 +02002031config AUTO_ZRELADDR
2032 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002033 help
2034 ZRELADDR is the physical address where the decompressed kernel
2035 image will be placed. If AUTO_ZRELADDR is selected, the address
2036 will be determined at run-time by masking the current IP with
2037 0xf8000000. This assumes the zImage being placed in the first 128MB
2038 from start of memory.
2039
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040endmenu
2041
Russell Kingac9d7ef2008-08-18 17:26:00 +01002042menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002043
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045
Russell Kingac9d7ef2008-08-18 17:26:00 +01002046source "drivers/cpuidle/Kconfig"
2047
2048endmenu
2049
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050menu "Floating point emulation"
2051
2052comment "At least one emulation must be selected"
2053
2054config FPE_NWFPE
2055 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002056 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057 ---help---
2058 Say Y to include the NWFPE floating point emulator in the kernel.
2059 This is necessary to run most binaries. Linux does not currently
2060 support floating point hardware so you need to say Y here even if
2061 your machine has an FPA or floating point co-processor podule.
2062
2063 You may say N here if you are going to load the Acorn FPEmulator
2064 early in the bootup.
2065
2066config FPE_NWFPE_XP
2067 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002068 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 help
2070 Say Y to include 80-bit support in the kernel floating-point
2071 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2072 Note that gcc does not generate 80-bit operations by default,
2073 so in most cases this option only enlarges the size of the
2074 floating point emulator without any good reason.
2075
2076 You almost surely want to say N here.
2077
2078config FPE_FASTFPE
2079 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002080 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002081 ---help---
2082 Say Y here to include the FAST floating point emulator in the kernel.
2083 This is an experimental much faster emulator which now also has full
2084 precision for the mantissa. It does not support any exceptions.
2085 It is very simple, and approximately 3-6 times faster than NWFPE.
2086
2087 It should be sufficient for most programs. It may be not suitable
2088 for scientific calculations, but you have to check this for yourself.
2089 If you do not feel you need a faster FP emulation you should better
2090 choose NWFPE.
2091
2092config VFP
2093 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002094 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002095 help
2096 Say Y to include VFP support code in the kernel. This is needed
2097 if your hardware includes a VFP unit.
2098
2099 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2100 release notes and additional status information.
2101
2102 Say N if your target does not have VFP hardware.
2103
Catalin Marinas25ebee02007-09-25 15:22:24 +01002104config VFPv3
2105 bool
2106 depends on VFP
2107 default y if CPU_V7
2108
Catalin Marinasb5872db2008-01-10 19:16:17 +01002109config NEON
2110 bool "Advanced SIMD (NEON) Extension support"
2111 depends on VFPv3 && CPU_V7
2112 help
2113 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2114 Extension.
2115
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002116config KERNEL_MODE_NEON
2117 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002118 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002119 help
2120 Say Y to include support for NEON in kernel mode.
2121
Linus Torvalds1da177e2005-04-16 15:20:36 -07002122endmenu
2123
2124menu "Userspace binary formats"
2125
2126source "fs/Kconfig.binfmt"
2127
2128config ARTHUR
2129 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002130 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 help
2132 Say Y here to include the kernel code necessary if you want to run
2133 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2134 experimental; if this sounds frightening, say N and sleep in peace.
2135 You can also say M here to compile this support as a module (which
2136 will be called arthur).
2137
2138endmenu
2139
2140menu "Power management options"
2141
Russell Kingeceab4a2005-11-15 11:31:41 +00002142source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143
Johannes Bergf4cb5702007-12-08 02:14:00 +01002144config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002145 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002146 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002147 def_bool y
2148
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002149config ARM_CPU_SUSPEND
2150 def_bool PM_SLEEP
2151
Sebastian Capella603fb422014-03-25 01:20:29 +01002152config ARCH_HIBERNATION_POSSIBLE
2153 bool
2154 depends on MMU
2155 default y if ARCH_SUSPEND_POSSIBLE
2156
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157endmenu
2158
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002159source "net/Kconfig"
2160
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002161source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002162
2163source "fs/Kconfig"
2164
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165source "arch/arm/Kconfig.debug"
2166
2167source "security/Kconfig"
2168
2169source "crypto/Kconfig"
2170
2171source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002172
2173source "arch/arm/kvm/Kconfig"