blob: cf4c0c99aa253f3f69ecc08a07f0c5a695e63640 [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
Robert Jarzmikd6cf30c2015-02-14 22:41:56 +0100622 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100623 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800624 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800625 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000626 help
eric miao2c8086a2007-09-11 19:13:17 -0700627 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600629config ARCH_MSM
630 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700631 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700632 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100633 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800634 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800635 Support for Qualcomm MSM/QSD based systems. This runs on the
636 apps processor of the MSM/QSD and depends on a shared memory
637 interface to the modem processor which runs the baseband
638 stack and controls some vital subsystems
639 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800640
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100641config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100642 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100643 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100644 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900645 select CLKDEV_LOOKUP
Magnus Damm0ed82bc2014-08-25 12:45:41 +0900646 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100647 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800648 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800649 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900650 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000651 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000652 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000653 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700654 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200655 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100656 select PM_GENERIC_DOMAINS if PM
Magnus Damm0cdc23d2014-08-25 12:45:50 +0900657 select SH_CLK_CPG
Russell Kingb1b3f492012-10-06 17:12:25 +0100658 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000659 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100660 Support for Renesas ARM SoC platforms using a non-multiplatform
661 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
662 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000663
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664config ARCH_RPC
665 bool "RiscPC"
666 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100667 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100668 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000669 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100670 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100671 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200672 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select HAVE_PATA_PLATFORM
674 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600675 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400676 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700677 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100678 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 help
680 On the Acorn Risc-PC, Linux can support the internal IDE disk and
681 CD-ROM interface, serial and parallel port, and the floppy drive.
682
683config ARCH_SA1100
684 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100685 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700686 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100687 select ARCH_SPARSEMEM_ENABLE
688 select CLKDEV_LOOKUP
689 select CLKSRC_MMIO
690 select CPU_FREQ
691 select CPU_SA1100
692 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200693 select HAVE_IDE
Dmitry Eremin-Solenikov1eca42b2014-11-28 15:56:54 +0100694 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select ISA
Dmitry Eremin-Solenikovaffcab32014-11-28 15:55:16 +0100696 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400697 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100698 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000699 help
700 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900702config ARCH_S3C24XX
703 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900704 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100705 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100706 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200707 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800708 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900709 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900710 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900711 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100712 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900713 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600714 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900715 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900717 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
718 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
719 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
720 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900721
Ben Dooksa08ab632008-10-21 14:06:39 +0100722config ARCH_S3C64XX
723 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900724 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200725 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100727 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200729 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900730 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900731 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800732 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900733 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900734 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900735 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100736 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700737 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100738 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100739 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100740 select S3C_DEV_NAND
741 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900742 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900743 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900744 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100745 help
746 Samsung S3C64XX series based systems
747
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100748config ARCH_DAVINCI
749 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100750 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700751 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100752 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700753 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100754 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100755 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100756 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500757 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530758 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100759 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100760 help
761 Support for TI's DaVinci platform.
762
Tony Lindgrena0694862013-01-11 11:24:20 -0800763config ARCH_OMAP1
764 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600765 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100766 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800767 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100768 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200769 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100770 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100771 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800772 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800773 select HAVE_IDE
774 select IRQ_DOMAIN
775 select NEED_MACH_IO_H if PCCARD
776 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100777 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800778 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800779
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780endchoice
781
Rob Herring387798b2012-09-06 13:41:12 -0500782menu "Multiple platform selection"
783 depends on ARCH_MULTIPLATFORM
784
785comment "CPU Core family selection"
786
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100787config ARCH_MULTI_V4
788 bool "ARMv4 based platforms (FA526)"
789 depends on !ARCH_MULTI_V6_V7
790 select ARCH_MULTI_V4_V5
791 select CPU_FA526
792
Rob Herring387798b2012-09-06 13:41:12 -0500793config ARCH_MULTI_V4T
794 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500795 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100796 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200797 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
798 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
799 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500800
801config ARCH_MULTI_V5
802 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500803 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100805 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200806 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
807 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500808
809config ARCH_MULTI_V4_V5
810 bool
811
812config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800813 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500814 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600815 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500816
817config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800818 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500819 default y
820 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100821 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600822 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500823
824config ARCH_MULTI_V6_V7
825 bool
Rob Herring9352b052014-01-31 15:36:10 -0600826 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500827
828config ARCH_MULTI_CPU_AUTO
829 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
830 select ARCH_MULTI_V5
831
832endmenu
833
Rob Herring05e2a3d2013-12-05 10:04:54 -0600834config ARCH_VIRT
835 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600836 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600837 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600838 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600839 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600840
Russell Kingccf50e22010-03-15 19:03:06 +0000841#
842# This is sorted alphabetically by mach-* pathname. However, plat-*
843# Kconfigs may be included either alphabetically (according to the
844# plat- suffix) or along side the corresponding mach-* source.
845#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200846source "arch/arm/mach-mvebu/Kconfig"
847
Oleksij Rempeld9bfc862014-11-24 12:08:27 +0100848source "arch/arm/mach-asm9260/Kconfig"
849
Russell King95b8f202010-01-14 11:43:54 +0000850source "arch/arm/mach-at91/Kconfig"
851
Anders Berg1d22924e2014-05-23 11:08:35 +0200852source "arch/arm/mach-axxia/Kconfig"
853
Christian Daudt8ac49e02012-11-19 09:46:10 -0800854source "arch/arm/mach-bcm/Kconfig"
855
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200856source "arch/arm/mach-berlin/Kconfig"
857
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858source "arch/arm/mach-clps711x/Kconfig"
859
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300860source "arch/arm/mach-cns3xxx/Kconfig"
861
Russell King95b8f202010-01-14 11:43:54 +0000862source "arch/arm/mach-davinci/Kconfig"
863
Baruch Siachdf8d7422015-01-14 10:40:30 +0200864source "arch/arm/mach-digicolor/Kconfig"
865
Russell King95b8f202010-01-14 11:43:54 +0000866source "arch/arm/mach-dove/Kconfig"
867
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000868source "arch/arm/mach-ep93xx/Kconfig"
869
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870source "arch/arm/mach-footbridge/Kconfig"
871
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200872source "arch/arm/mach-gemini/Kconfig"
873
Rob Herring387798b2012-09-06 13:41:12 -0500874source "arch/arm/mach-highbank/Kconfig"
875
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800876source "arch/arm/mach-hisi/Kconfig"
877
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878source "arch/arm/mach-integrator/Kconfig"
879
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100880source "arch/arm/mach-iop32x/Kconfig"
881
882source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
Dan Williams285f5fa2006-12-07 02:59:39 +0100884source "arch/arm/mach-iop13xx/Kconfig"
885
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886source "arch/arm/mach-ixp4xx/Kconfig"
887
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400888source "arch/arm/mach-keystone/Kconfig"
889
Russell King95b8f202010-01-14 11:43:54 +0000890source "arch/arm/mach-ks8695/Kconfig"
891
Carlo Caione3b8f5032014-09-10 22:16:59 +0200892source "arch/arm/mach-meson/Kconfig"
893
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-msm/Kconfig"
895
Jonas Jensen17723fd32013-12-18 13:58:45 +0100896source "arch/arm/mach-moxart/Kconfig"
897
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200898source "arch/arm/mach-mv78xx0/Kconfig"
899
Shawn Guo3995eb82012-09-13 19:48:07 +0800900source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700901
Matthias Bruggerf682a212014-05-13 01:06:13 +0200902source "arch/arm/mach-mediatek/Kconfig"
903
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800904source "arch/arm/mach-mxs/Kconfig"
905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800907
Russell King95b8f202010-01-14 11:43:54 +0000908source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000909
Daniel Tang9851ca52013-06-11 18:40:17 +1000910source "arch/arm/mach-nspire/Kconfig"
911
Tony Lindgrend48af152005-07-10 19:58:17 +0100912source "arch/arm/plat-omap/Kconfig"
913
914source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700915
Tony Lindgren1dbae812005-11-10 14:26:51 +0000916source "arch/arm/mach-omap2/Kconfig"
917
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400918source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400919
Rob Herring387798b2012-09-06 13:41:12 -0500920source "arch/arm/mach-picoxcell/Kconfig"
921
Russell King95b8f202010-01-14 11:43:54 +0000922source "arch/arm/mach-pxa/Kconfig"
923source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924
Russell King95b8f202010-01-14 11:43:54 +0000925source "arch/arm/mach-mmp/Kconfig"
926
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600927source "arch/arm/mach-qcom/Kconfig"
928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-realview/Kconfig"
930
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200931source "arch/arm/mach-rockchip/Kconfig"
932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300934
Rob Herring387798b2012-09-06 13:41:12 -0500935source "arch/arm/mach-socfpga/Kconfig"
936
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100937source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100938
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100939source "arch/arm/mach-sti/Kconfig"
940
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900941source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
Ben Dooks431107e2010-01-26 10:11:04 +0900943source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100944
Kukjin Kim170f4e42010-02-24 16:40:44 +0900945source "arch/arm/mach-s5pv210/Kconfig"
946
Kukjin Kim83014572011-11-06 13:54:56 +0900947source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500948source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900949
Russell King882d01f2010-03-02 23:40:15 +0000950source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951
Maxime Ripard3b526342012-11-08 12:40:16 +0100952source "arch/arm/mach-sunxi/Kconfig"
953
Barry Song156a0992012-08-23 13:41:58 +0800954source "arch/arm/mach-prima2/Kconfig"
955
Erik Gillingc5f80062010-01-21 16:53:02 -0800956source "arch/arm/mach-tegra/Kconfig"
957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
962source "arch/arm/mach-versatile/Kconfig"
963
Russell Kingceade892010-02-11 21:44:53 +0000964source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000965source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000966
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300967source "arch/arm/mach-vt8500/Kconfig"
968
wanzongshun7ec80dd2008-12-03 03:55:38 +0100969source "arch/arm/mach-w90x900/Kconfig"
970
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600971source "arch/arm/mach-zynq/Kconfig"
972
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973# Definitions to make life easier
974config ARCH_ACORN
975 bool
976
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100977config PLAT_IOP
978 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700979 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100980
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400981config PLAT_ORION
982 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100983 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100984 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100985 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200986 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400987
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200988config PLAT_ORION_LEGACY
989 bool
990 select PLAT_ORION
991
Eric Miaobd5ce432009-01-20 12:06:01 +0800992config PLAT_PXA
993 bool
994
Russell Kingf4b8b312010-01-14 12:48:06 +0000995config PLAT_VERSATILE
996 bool
997
Russell Kinge3887712010-01-14 13:30:16 +0000998config ARM_TIMER_SP804
999 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001000 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001001 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001002
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001003source "arch/arm/firmware/Kconfig"
1004
Linus Torvalds1da177e2005-04-16 15:20:36 -07001005source arch/arm/mm/Kconfig
1006
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001007config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001008 bool "Enable iWMMXt support"
1009 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1010 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001011 help
1012 Enable support for iWMMXt context switching at run time if
1013 running on a CPU that supports it.
1014
eric miao52108642010-12-13 09:42:34 +01001015config MULTI_IRQ_HANDLER
1016 bool
1017 help
1018 Allow each machine to specify it's own IRQ handler at run time.
1019
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001020if !MMU
1021source "arch/arm/Kconfig-nommu"
1022endif
1023
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001024config PJ4B_ERRATA_4742
1025 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1026 depends on CPU_PJ4B && MACH_ARMADA_370
1027 default y
1028 help
1029 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1030 Event (WFE) IDLE states, a specific timing sensitivity exists between
1031 the retiring WFI/WFE instructions and the newly issued subsequent
1032 instructions. This sensitivity can result in a CPU hang scenario.
1033 Workaround:
1034 The software must insert either a Data Synchronization Barrier (DSB)
1035 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1036 instruction
1037
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001038config ARM_ERRATA_326103
1039 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1040 depends on CPU_V6
1041 help
1042 Executing a SWP instruction to read-only memory does not set bit 11
1043 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1044 treat the access as a read, preventing a COW from occurring and
1045 causing the faulting task to livelock.
1046
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001047config ARM_ERRATA_411920
1048 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001049 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001050 help
1051 Invalidation of the Instruction Cache operation can
1052 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1053 It does not affect the MPCore. This option enables the ARM Ltd.
1054 recommended workaround.
1055
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001056config ARM_ERRATA_430973
1057 bool "ARM errata: Stale prediction on replaced interworking branch"
1058 depends on CPU_V7
1059 help
1060 This option enables the workaround for the 430973 Cortex-A8
1061 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1062 interworking branch is replaced with another code sequence at the
1063 same virtual address, whether due to self-modifying code or virtual
1064 to physical address re-mapping, Cortex-A8 does not recover from the
1065 stale interworking branch prediction. This results in Cortex-A8
1066 executing the new code sequence in the incorrect ARM or Thumb state.
1067 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1068 and also flushes the branch target cache at every context switch.
1069 Note that setting specific bits in the ACTLR register may not be
1070 available in non-secure mode.
1071
Catalin Marinas855c5512009-04-30 17:06:15 +01001072config ARM_ERRATA_458693
1073 bool "ARM errata: Processor deadlock when a false hazard is created"
1074 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001075 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001076 help
1077 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1078 erratum. For very specific sequences of memory operations, it is
1079 possible for a hazard condition intended for a cache line to instead
1080 be incorrectly associated with a different cache line. This false
1081 hazard might then cause a processor deadlock. The workaround enables
1082 the L1 caching of the NEON accesses and disables the PLD instruction
1083 in the ACTLR register. Note that setting specific bits in the ACTLR
1084 register may not be available in non-secure mode.
1085
Catalin Marinas0516e462009-04-30 17:06:20 +01001086config ARM_ERRATA_460075
1087 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1088 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001089 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001090 help
1091 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1092 erratum. Any asynchronous access to the L2 cache may encounter a
1093 situation in which recent store transactions to the L2 cache are lost
1094 and overwritten with stale memory contents from external memory. The
1095 workaround disables the write-allocate mode for the L2 cache via the
1096 ACTLR register. Note that setting specific bits in the ACTLR register
1097 may not be available in non-secure mode.
1098
Will Deacon9f050272010-09-14 09:51:43 +01001099config ARM_ERRATA_742230
1100 bool "ARM errata: DMB operation may be faulty"
1101 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001102 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001103 help
1104 This option enables the workaround for the 742230 Cortex-A9
1105 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1106 between two write operations may not ensure the correct visibility
1107 ordering of the two writes. This workaround sets a specific bit in
1108 the diagnostic register of the Cortex-A9 which causes the DMB
1109 instruction to behave as a DSB, ensuring the correct behaviour of
1110 the two writes.
1111
Will Deacona672e992010-09-14 09:53:02 +01001112config ARM_ERRATA_742231
1113 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1114 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001115 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001116 help
1117 This option enables the workaround for the 742231 Cortex-A9
1118 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1119 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1120 accessing some data located in the same cache line, may get corrupted
1121 data due to bad handling of the address hazard when the line gets
1122 replaced from one of the CPUs at the same time as another CPU is
1123 accessing it. This workaround sets specific bits in the diagnostic
1124 register of the Cortex-A9 which reduces the linefill issuing
1125 capabilities of the processor.
1126
Jon Medhurst69155792013-06-07 10:35:35 +01001127config ARM_ERRATA_643719
1128 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1129 depends on CPU_V7 && SMP
1130 help
1131 This option enables the workaround for the 643719 Cortex-A9 (prior to
1132 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1133 register returns zero when it should return one. The workaround
1134 corrects this value, ensuring cache maintenance operations which use
1135 it behave as intended and avoiding data corruption.
1136
Will Deaconcdf357f2010-08-05 11:20:51 +01001137config ARM_ERRATA_720789
1138 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001139 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001140 help
1141 This option enables the workaround for the 720789 Cortex-A9 (prior to
1142 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1143 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1144 As a consequence of this erratum, some TLB entries which should be
1145 invalidated are not, resulting in an incoherency in the system page
1146 tables. The workaround changes the TLB flushing routines to invalidate
1147 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001148
1149config ARM_ERRATA_743622
1150 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1151 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001152 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001153 help
1154 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001155 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001156 optimisation in the Cortex-A9 Store Buffer may lead to data
1157 corruption. This workaround sets a specific bit in the diagnostic
1158 register of the Cortex-A9 which disables the Store Buffer
1159 optimisation, preventing the defect from occurring. This has no
1160 visible impact on the overall performance or power consumption of the
1161 processor.
1162
Will Deacon9a27c272011-02-18 16:36:35 +01001163config ARM_ERRATA_751472
1164 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001165 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001166 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001167 help
1168 This option enables the workaround for the 751472 Cortex-A9 (prior
1169 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1170 completion of a following broadcasted operation if the second
1171 operation is received by a CPU before the ICIALLUIS has completed,
1172 potentially leading to corrupted entries in the cache or TLB.
1173
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001174config ARM_ERRATA_754322
1175 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1176 depends on CPU_V7
1177 help
1178 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1179 r3p*) erratum. A speculative memory access may cause a page table walk
1180 which starts prior to an ASID switch but completes afterwards. This
1181 can populate the micro-TLB with a stale entry which may be hit with
1182 the new ASID. This workaround places two dsb instructions in the mm
1183 switching code so that no page table walks can cross the ASID switch.
1184
Will Deacon5dab26af2011-03-04 12:38:54 +01001185config ARM_ERRATA_754327
1186 bool "ARM errata: no automatic Store Buffer drain"
1187 depends on CPU_V7 && SMP
1188 help
1189 This option enables the workaround for the 754327 Cortex-A9 (prior to
1190 r2p0) erratum. The Store Buffer does not have any automatic draining
1191 mechanism and therefore a livelock may occur if an external agent
1192 continuously polls a memory location waiting to observe an update.
1193 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1194 written polling loops from denying visibility of updates to memory.
1195
Catalin Marinas145e10e2011-08-15 11:04:41 +01001196config ARM_ERRATA_364296
1197 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001198 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001199 help
1200 This options enables the workaround for the 364296 ARM1136
1201 r0p2 erratum (possible cache data corruption with
1202 hit-under-miss enabled). It sets the undocumented bit 31 in
1203 the auxiliary control register and the FI bit in the control
1204 register, thus disabling hit-under-miss without putting the
1205 processor into full low interrupt latency mode. ARM11MPCore
1206 is not affected.
1207
Will Deaconf630c1b2011-09-15 11:45:15 +01001208config ARM_ERRATA_764369
1209 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1210 depends on CPU_V7 && SMP
1211 help
1212 This option enables the workaround for erratum 764369
1213 affecting Cortex-A9 MPCore with two or more processors (all
1214 current revisions). Under certain timing circumstances, a data
1215 cache line maintenance operation by MVA targeting an Inner
1216 Shareable memory region may fail to proceed up to either the
1217 Point of Coherency or to the Point of Unification of the
1218 system. This workaround adds a DSB instruction before the
1219 relevant cache maintenance functions and sets a specific bit
1220 in the diagnostic control register of the SCU.
1221
Simon Horman7253b852012-09-28 02:12:45 +01001222config ARM_ERRATA_775420
1223 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1224 depends on CPU_V7
1225 help
1226 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1227 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1228 operation aborts with MMU exception, it might cause the processor
1229 to deadlock. This workaround puts DSB before executing ISB if
1230 an abort may occur on cache maintenance.
1231
Catalin Marinas93dc6882013-03-26 23:35:04 +01001232config ARM_ERRATA_798181
1233 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1234 depends on CPU_V7 && SMP
1235 help
1236 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1237 adequately shooting down all use of the old entries. This
1238 option enables the Linux kernel workaround for this erratum
1239 which sends an IPI to the CPUs that are running the same ASID
1240 as the one being invalidated.
1241
Will Deacon84b65042013-08-20 17:29:55 +01001242config ARM_ERRATA_773022
1243 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1244 depends on CPU_V7
1245 help
1246 This option enables the workaround for the 773022 Cortex-A15
1247 (up to r0p4) erratum. In certain rare sequences of code, the
1248 loop buffer may deliver incorrect instructions. This
1249 workaround disables the loop buffer to avoid the erratum.
1250
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251endmenu
1252
1253source "arch/arm/common/Kconfig"
1254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255menu "Bus support"
1256
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257config ISA
1258 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 help
1260 Find out whether you have ISA slots on your motherboard. ISA is the
1261 name of a bus system, i.e. the way the CPU talks to the other stuff
1262 inside your box. Other bus systems are PCI, EISA, MicroChannel
1263 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1264 newer boards don't support it. If you have ISA, say Y, otherwise N.
1265
Russell King065909b2006-01-04 15:44:16 +00001266# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267config ISA_DMA
1268 bool
Russell King065909b2006-01-04 15:44:16 +00001269 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270
Russell King065909b2006-01-04 15:44:16 +00001271# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001272config ISA_DMA_API
1273 bool
Al Viro5cae8412005-05-04 05:39:22 +01001274
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001276 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 help
1278 Find out whether you have a PCI motherboard. PCI is the name of a
1279 bus system, i.e. the way the CPU talks to the other stuff inside
1280 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1281 VESA. If you have PCI, say Y, otherwise N.
1282
Anton Vorontsov52882172010-04-19 13:20:49 +01001283config PCI_DOMAINS
1284 bool
1285 depends on PCI
1286
Lorenzo Pieralisi8c7d14742014-11-21 11:29:26 +00001287config PCI_DOMAINS_GENERIC
1288 def_bool PCI_DOMAINS
1289
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001290config PCI_NANOENGINE
1291 bool "BSE nanoEngine PCI support"
1292 depends on SA1100_NANOENGINE
1293 help
1294 Enable PCI on the BSE nanoEngine board.
1295
Matthew Wilcox36e23592007-07-10 10:54:40 -06001296config PCI_SYSCALL
1297 def_bool PCI
1298
Mike Rapoporta0113a92007-11-25 08:55:34 +01001299config PCI_HOST_ITE8152
1300 bool
1301 depends on PCI && MACH_ARMCORE
1302 default y
1303 select DMABOUNCE
1304
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001306source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001307
1308source "drivers/pcmcia/Kconfig"
1309
1310endmenu
1311
1312menu "Kernel Features"
1313
Dave Martin3b556582011-12-07 15:38:04 +00001314config HAVE_SMP
1315 bool
1316 help
1317 This option should be selected by machines which have an SMP-
1318 capable CPU.
1319
1320 The only effect of this option is to make the SMP-related
1321 options available to the user for configuration.
1322
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001324 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001325 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001326 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001327 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001328 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329 help
1330 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001331 a system with only one CPU, say N. If you have a system with more
1332 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333
Robert Graffham4a474152014-01-23 15:55:29 -08001334 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001336 you say Y here, the kernel will run on many, but not all,
1337 uniprocessor machines. On a uniprocessor machine, the kernel
1338 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339
Paul Bolle395cf962011-08-15 02:02:26 +02001340 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001342 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343
1344 If you don't know what to do here, say N.
1345
Russell Kingf00ec482010-09-04 10:47:48 +01001346config SMP_ON_UP
1347 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001348 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001349 default y
1350 help
1351 SMP kernels contain instructions which fail on non-SMP processors.
1352 Enabling this option allows the kernel to modify itself to make
1353 these instructions safe. Disabling it allows about 1K of space
1354 savings.
1355
1356 If you don't know what to do here, say Y.
1357
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001358config ARM_CPU_TOPOLOGY
1359 bool "Support cpu topology definition"
1360 depends on SMP && CPU_V7
1361 default y
1362 help
1363 Support ARM cpu topology definition. The MPIDR register defines
1364 affinity between processors which is then used to describe the cpu
1365 topology of an ARM System.
1366
1367config SCHED_MC
1368 bool "Multi-core scheduler support"
1369 depends on ARM_CPU_TOPOLOGY
1370 help
1371 Multi-core scheduler support improves the CPU scheduler's decision
1372 making when dealing with multi-core CPU chips at a cost of slightly
1373 increased overhead in some places. If unsure say N here.
1374
1375config SCHED_SMT
1376 bool "SMT scheduler support"
1377 depends on ARM_CPU_TOPOLOGY
1378 help
1379 Improves the CPU scheduler's decision making when dealing with
1380 MultiThreading at a cost of slightly increased overhead in some
1381 places. If unsure say N here.
1382
Russell Kinga8cbcd92009-05-16 11:51:14 +01001383config HAVE_ARM_SCU
1384 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001385 help
1386 This option enables support for the ARM system coherency unit
1387
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001388config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001389 bool "Architected timer support"
1390 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001391 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001392 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001393 help
1394 This option enables support for the ARM architected timer
1395
Russell Kingf32f4ce2009-05-16 12:14:21 +01001396config HAVE_ARM_TWD
1397 bool
1398 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001399 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001400 help
1401 This options enables support for the ARM timer and watchdog unit
1402
Nicolas Pitree8db2882012-04-12 02:45:22 -04001403config MCPM
1404 bool "Multi-Cluster Power Management"
1405 depends on CPU_V7 && SMP
1406 help
1407 This option provides the common power management infrastructure
1408 for (multi-)cluster based systems, such as big.LITTLE based
1409 systems.
1410
Haojian Zhuangebf4a5c2014-04-15 14:52:00 +08001411config MCPM_QUAD_CLUSTER
1412 bool
1413 depends on MCPM
1414 help
1415 To avoid wasting resources unnecessarily, MCPM only supports up
1416 to 2 clusters by default.
1417 Platforms with 3 or 4 clusters that use MCPM must select this
1418 option to allow the additional clusters to be managed.
1419
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001420config BIG_LITTLE
1421 bool "big.LITTLE support (Experimental)"
1422 depends on CPU_V7 && SMP
1423 select MCPM
1424 help
1425 This option enables support selections for the big.LITTLE
1426 system architecture.
1427
1428config BL_SWITCHER
1429 bool "big.LITTLE switcher support"
1430 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001431 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001432 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001433 help
1434 The big.LITTLE "switcher" provides the core functionality to
1435 transparently handle transition between a cluster of A15's
1436 and a cluster of A7's in a big.LITTLE system.
1437
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001438config BL_SWITCHER_DUMMY_IF
1439 tristate "Simple big.LITTLE switcher user interface"
1440 depends on BL_SWITCHER && DEBUG_KERNEL
1441 help
1442 This is a simple and dummy char dev interface to control
1443 the big.LITTLE switcher core code. It is meant for
1444 debugging purposes only.
1445
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001446choice
1447 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001448 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001449 default VMSPLIT_3G
1450 help
1451 Select the desired split between kernel and user memory.
1452
1453 If you are not absolutely sure what you are doing, leave this
1454 option alone!
1455
1456 config VMSPLIT_3G
1457 bool "3G/1G user/kernel split"
1458 config VMSPLIT_2G
1459 bool "2G/2G user/kernel split"
1460 config VMSPLIT_1G
1461 bool "1G/3G user/kernel split"
1462endchoice
1463
1464config PAGE_OFFSET
1465 hex
Russell King006fa252014-02-26 19:40:46 +00001466 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001467 default 0x40000000 if VMSPLIT_1G
1468 default 0x80000000 if VMSPLIT_2G
1469 default 0xC0000000
1470
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471config NR_CPUS
1472 int "Maximum number of CPUs (2-32)"
1473 range 2 32
1474 depends on SMP
1475 default "4"
1476
Russell Kinga054a812005-11-02 22:24:33 +00001477config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001478 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001479 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001480 help
1481 Say Y here to experiment with turning CPUs off and on. CPUs
1482 can be controlled through /sys/devices/system/cpu.
1483
Will Deacon2bdd4242012-12-12 19:20:52 +00001484config ARM_PSCI
1485 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1486 depends on CPU_V7
1487 help
1488 Say Y here if you want Linux to communicate with system firmware
1489 implementing the PSCI specification for CPU-centric power
1490 management operations described in ARM document number ARM DEN
1491 0022A ("Power State Coordination Interface System Software on
1492 ARM processors").
1493
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001494# The GPIO number here must be sorted by descending number. In case of
1495# a multiplatform kernel, we just want the highest value required by the
1496# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001497config ARCH_NR_GPIO
1498 int
Michal Simek6a4d8f32015-01-15 08:42:42 +01001499 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA || ARCH_ZYNQ
Tomasz Figaaa425872014-07-03 13:17:12 +02001500 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1501 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001502 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001503 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001504 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001505 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001506 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001507 default 0
1508 help
1509 Maximum number of GPIOs in the system.
1510
1511 If unsure, leave the default value.
1512
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001513source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001514
Russell Kingc9218b12013-04-27 23:31:10 +01001515config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001516 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001517 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001518 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001519 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001520 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001521 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001522
1523choice
Russell King47d84682013-09-10 23:47:55 +01001524 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001525 prompt "Timer frequency"
1526
1527config HZ_100
1528 bool "100 Hz"
1529
1530config HZ_200
1531 bool "200 Hz"
1532
1533config HZ_250
1534 bool "250 Hz"
1535
1536config HZ_300
1537 bool "300 Hz"
1538
1539config HZ_500
1540 bool "500 Hz"
1541
1542config HZ_1000
1543 bool "1000 Hz"
1544
1545endchoice
1546
1547config HZ
1548 int
Russell King47d84682013-09-10 23:47:55 +01001549 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001550 default 100 if HZ_100
1551 default 200 if HZ_200
1552 default 250 if HZ_250
1553 default 300 if HZ_300
1554 default 500 if HZ_500
1555 default 1000
1556
1557config SCHED_HRTICK
1558 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001559
Catalin Marinas16c79652009-07-24 12:33:02 +01001560config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001561 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001562 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001563 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001564 select AEABI
1565 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001566 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001567 help
1568 By enabling this option, the kernel will be compiled in
1569 Thumb-2 mode. A compiler/assembler that understand the unified
1570 ARM-Thumb syntax is needed.
1571
1572 If unsure, say N.
1573
Dave Martin6f685c52011-03-03 11:41:12 +01001574config THUMB2_AVOID_R_ARM_THM_JUMP11
1575 bool "Work around buggy Thumb-2 short branch relocations in gas"
1576 depends on THUMB2_KERNEL && MODULES
1577 default y
1578 help
1579 Various binutils versions can resolve Thumb-2 branches to
1580 locally-defined, preemptible global symbols as short-range "b.n"
1581 branch instructions.
1582
1583 This is a problem, because there's no guarantee the final
1584 destination of the symbol, or any candidate locations for a
1585 trampoline, are within range of the branch. For this reason, the
1586 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1587 relocation in modules at all, and it makes little sense to add
1588 support.
1589
1590 The symptom is that the kernel fails with an "unsupported
1591 relocation" error when loading some modules.
1592
1593 Until fixed tools are available, passing
1594 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1595 code which hits this problem, at the cost of a bit of extra runtime
1596 stack usage in some cases.
1597
1598 The problem is described in more detail at:
1599 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1600
1601 Only Thumb-2 kernels are affected.
1602
1603 Unless you are sure your tools don't have this problem, say Y.
1604
Catalin Marinas0becb082009-07-24 12:32:53 +01001605config ARM_ASM_UNIFIED
1606 bool
1607
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001608config AEABI
1609 bool "Use the ARM EABI to compile the kernel"
1610 help
1611 This option allows for the kernel to be compiled using the latest
1612 ARM ABI (aka EABI). This is only useful if you are using a user
1613 space environment that is also compiled with EABI.
1614
1615 Since there are major incompatibilities between the legacy ABI and
1616 EABI, especially with regard to structure member alignment, this
1617 option also changes the kernel syscall calling convention to
1618 disambiguate both ABIs and allow for backward compatibility support
1619 (selected with CONFIG_OABI_COMPAT).
1620
1621 To use this you need GCC version 4.0.0 or later.
1622
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001623config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001624 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001625 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001626 help
1627 This option preserves the old syscall interface along with the
1628 new (ARM EABI) one. It also provides a compatibility layer to
1629 intercept syscalls that have structure arguments which layout
1630 in memory differs between the legacy ABI and the new ARM EABI
1631 (only for non "thumb" binaries). This option adds a tiny
1632 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001633
1634 The seccomp filter system will not be available when this is
1635 selected, since there is no way yet to sensibly distinguish
1636 between calling conventions during filtering.
1637
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001638 If you know you'll be using only pure EABI user space then you
1639 can say N here. If this option is not selected and you attempt
1640 to execute a legacy ABI binary then the result will be
1641 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001642 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001643
Mel Gormaneb335752009-05-13 17:34:48 +01001644config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001645 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001646
Russell King05944d72006-11-30 20:43:51 +00001647config ARCH_SPARSEMEM_ENABLE
1648 bool
1649
Russell King07a2f732008-10-01 21:39:58 +01001650config ARCH_SPARSEMEM_DEFAULT
1651 def_bool ARCH_SPARSEMEM_ENABLE
1652
Russell King05944d72006-11-30 20:43:51 +00001653config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001654 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001655
Will Deacon7b7bf492011-05-19 13:21:14 +01001656config HAVE_ARCH_PFN_VALID
1657 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1658
Steve Capperb8cd51a2014-10-09 15:29:20 -07001659config HAVE_GENERIC_RCU_GUP
1660 def_bool y
1661 depends on ARM_LPAE
1662
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001663config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001664 bool "High Memory Support"
1665 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001666 help
1667 The address space of ARM processors is only 4 Gigabytes large
1668 and it has to accommodate user address space, kernel address
1669 space as well as some memory mapped IO. That means that, if you
1670 have a large amount of physical memory and/or IO, not all of the
1671 memory can be "permanently mapped" by the kernel. The physical
1672 memory that is not permanently mapped is called "high memory".
1673
1674 Depending on the selected kernel/user memory split, minimum
1675 vmalloc space and actual amount of RAM, you may not need this
1676 option which should result in a slightly faster kernel.
1677
1678 If unsure, say n.
1679
Russell King65cec8e2009-08-17 20:02:06 +01001680config HIGHPTE
1681 bool "Allocate 2nd-level pagetables from highmem"
1682 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001683
Jamie Iles1b8873a2010-02-02 20:25:44 +01001684config HW_PERF_EVENTS
1685 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001686 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001687 default y
1688 help
1689 Enable hardware performance counter support for perf events. If
1690 disabled, perf events will use software events only.
1691
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001692config SYS_SUPPORTS_HUGETLBFS
1693 def_bool y
1694 depends on ARM_LPAE
1695
Catalin Marinas8d962502012-07-25 14:39:26 +01001696config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1697 def_bool y
1698 depends on ARM_LPAE
1699
Steven Capper4bfab202013-07-26 14:58:22 +01001700config ARCH_WANT_GENERAL_HUGETLB
1701 def_bool y
1702
Dave Hansen3f22ab22005-06-23 00:07:43 -07001703source "mm/Kconfig"
1704
Magnus Dammc1b2d972010-07-05 10:00:11 +01001705config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001706 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1707 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001708 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001709 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001710 default "11"
1711 help
1712 The kernel memory allocator divides physically contiguous memory
1713 blocks into "zones", where each zone is a power of two number of
1714 pages. This option selects the largest power of two that the kernel
1715 keeps in the memory allocator. If you need to allocate very large
1716 blocks of physically contiguous memory, then you may need to
1717 increase this value.
1718
1719 This config option is actually maximum order plus one. For example,
1720 a value of 11 means that the largest free memory block is 2^10 pages.
1721
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722config ALIGNMENT_TRAP
1723 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001724 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001726 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001728 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1730 address divisible by 4. On 32-bit ARM processors, these non-aligned
1731 fetch/store instructions will be emulated in software if you say
1732 here, which has a severe performance impact. This is necessary for
1733 correct operation of some network protocols. With an IP-only
1734 configuration it is safe to say N, otherwise say Y.
1735
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001736config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001737 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1738 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001739 default y if CPU_FEROCEON
1740 help
1741 Implement faster copy_to_user and clear_user methods for CPU
1742 cores where a 8-word STM instruction give significantly higher
1743 memory write throughput than a sequence of individual 32bit stores.
1744
1745 A possible side effect is a slight increase in scheduling latency
1746 between threads sharing the same address space if they invoke
1747 such copy operations with large buffers.
1748
1749 However, if the CPU data cache is using a write-allocate mode,
1750 this option is unlikely to provide any performance gain.
1751
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001752config SECCOMP
1753 bool
1754 prompt "Enable seccomp to safely compute untrusted bytecode"
1755 ---help---
1756 This kernel feature is useful for number crunching applications
1757 that may need to compute untrusted bytecode during their
1758 execution. By using pipes or other transports made available to
1759 the process as file descriptors supporting the read/write
1760 syscalls, it's possible to isolate those applications in
1761 their own address space using seccomp. Once seccomp is
1762 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1763 and the task is only allowed to execute a few safe syscalls
1764 defined by each seccomp mode.
1765
Stefano Stabellini06e62952013-10-15 15:47:14 +00001766config SWIOTLB
1767 def_bool y
1768
1769config IOMMU_HELPER
1770 def_bool SWIOTLB
1771
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001772config XEN_DOM0
1773 def_bool y
1774 depends on XEN
1775
1776config XEN
Julien Grallc2ba1f72014-09-17 14:07:06 -07001777 bool "Xen guest support on ARM"
Ian Campbell85323a92013-03-07 07:17:25 +00001778 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001779 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001780 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001781 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001782 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001783 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001784 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001785 help
1786 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1787
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788endmenu
1789
1790menu "Boot options"
1791
Grant Likely9eb8f672011-04-28 14:27:20 -06001792config USE_OF
1793 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001794 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001795 select OF
1796 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001797 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001798 help
1799 Include support for flattened device tree machine descriptions.
1800
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001801config ATAGS
1802 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1803 default y
1804 help
1805 This is the traditional way of passing data to the kernel at boot
1806 time. If you are solely relying on the flattened device tree (or
1807 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1808 to remove ATAGS support from your kernel binary. If unsure,
1809 leave this to y.
1810
1811config DEPRECATED_PARAM_STRUCT
1812 bool "Provide old way to pass kernel parameters"
1813 depends on ATAGS
1814 help
1815 This was deprecated in 2001 and announced to live on for 5 years.
1816 Some old boot loaders still use this way.
1817
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818# Compressed boot loader in ROM. Yes, we really want to ask about
1819# TEXT and BSS so we preserve their values in the config files.
1820config ZBOOT_ROM_TEXT
1821 hex "Compressed ROM boot loader base address"
1822 default "0"
1823 help
1824 The physical address at which the ROM-able zImage is to be
1825 placed in the target. Platforms which normally make use of
1826 ROM-able zImage formats normally set this to a suitable
1827 value in their defconfig file.
1828
1829 If ZBOOT_ROM is not enabled, this has no effect.
1830
1831config ZBOOT_ROM_BSS
1832 hex "Compressed ROM boot loader BSS address"
1833 default "0"
1834 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001835 The base address of an area of read/write memory in the target
1836 for the ROM-able zImage which must be available while the
1837 decompressor is running. It must be large enough to hold the
1838 entire decompressed kernel plus an additional 128 KiB.
1839 Platforms which normally make use of ROM-able zImage formats
1840 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001841
1842 If ZBOOT_ROM is not enabled, this has no effect.
1843
1844config ZBOOT_ROM
1845 bool "Compressed boot loader in ROM/flash"
1846 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001847 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001848 help
1849 Say Y here if you intend to execute your compressed kernel image
1850 (zImage) directly from ROM or flash. If unsure, say N.
1851
Simon Horman090ab3f2011-04-26 06:29:53 +01001852choice
1853 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001854 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001855 default ZBOOT_ROM_NONE
1856 help
1857 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001858 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001859 kernel image to an MMC or SD card and boot the kernel straight
1860 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001861 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001862 rest the kernel image to RAM.
1863
1864config ZBOOT_ROM_NONE
1865 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1866 help
1867 Do not load image from SD or MMC
1868
Simon Hormanf45b1142011-01-11 04:01:08 +01001869config ZBOOT_ROM_MMCIF
1870 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001871 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001872 Load image from MMCIF hardware block.
1873
1874config ZBOOT_ROM_SH_MOBILE_SDHI
1875 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1876 help
1877 Load image from SDHI hardware block
1878
1879endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001880
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001881config ARM_APPENDED_DTB
1882 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001883 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001884 help
1885 With this option, the boot code will look for a device tree binary
1886 (DTB) appended to zImage
1887 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1888
1889 This is meant as a backward compatibility convenience for those
1890 systems with a bootloader that can't be upgraded to accommodate
1891 the documented boot protocol using a device tree.
1892
1893 Beware that there is very little in terms of protection against
1894 this option being confused by leftover garbage in memory that might
1895 look like a DTB header after a reboot if no actual DTB is appended
1896 to zImage. Do not leave this option active in a production kernel
1897 if you don't intend to always append a DTB. Proper passing of the
1898 location into r2 of a bootloader provided DTB is always preferable
1899 to this option.
1900
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001901config ARM_ATAG_DTB_COMPAT
1902 bool "Supplement the appended DTB with traditional ATAG information"
1903 depends on ARM_APPENDED_DTB
1904 help
1905 Some old bootloaders can't be updated to a DTB capable one, yet
1906 they provide ATAGs with memory configuration, the ramdisk address,
1907 the kernel cmdline string, etc. Such information is dynamically
1908 provided by the bootloader and can't always be stored in a static
1909 DTB. To allow a device tree enabled kernel to be used with such
1910 bootloaders, this option allows zImage to extract the information
1911 from the ATAG list and store it at run time into the appended DTB.
1912
Genoud Richardd0f34a112012-06-26 16:37:59 +01001913choice
1914 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1915 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1916
1917config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1918 bool "Use bootloader kernel arguments if available"
1919 help
1920 Uses the command-line options passed by the boot loader instead of
1921 the device tree bootargs property. If the boot loader doesn't provide
1922 any, the device tree bootargs property will be used.
1923
1924config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1925 bool "Extend with bootloader kernel arguments"
1926 help
1927 The command-line arguments provided by the boot loader will be
1928 appended to the the device tree bootargs property.
1929
1930endchoice
1931
Linus Torvalds1da177e2005-04-16 15:20:36 -07001932config CMDLINE
1933 string "Default kernel command string"
1934 default ""
1935 help
1936 On some architectures (EBSA110 and CATS), there is currently no way
1937 for the boot loader to pass arguments to the kernel. For these
1938 architectures, you should supply some command-line options at build
1939 time by entering them here. As a minimum, you should specify the
1940 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1941
Victor Boivie4394c122011-05-04 17:07:55 +01001942choice
1943 prompt "Kernel command line type" if CMDLINE != ""
1944 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001945 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001946
1947config CMDLINE_FROM_BOOTLOADER
1948 bool "Use bootloader kernel arguments if available"
1949 help
1950 Uses the command-line options passed by the boot loader. If
1951 the boot loader doesn't provide any, the default kernel command
1952 string provided in CMDLINE will be used.
1953
1954config CMDLINE_EXTEND
1955 bool "Extend bootloader kernel arguments"
1956 help
1957 The command-line arguments provided by the boot loader will be
1958 appended to the default kernel command string.
1959
Alexander Holler92d20402010-02-16 19:04:53 +01001960config CMDLINE_FORCE
1961 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001962 help
1963 Always use the default kernel command string, even if the boot
1964 loader passes other arguments to the kernel.
1965 This is useful if you cannot or don't want to change the
1966 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001967endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001968
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969config XIP_KERNEL
1970 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001971 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972 help
1973 Execute-In-Place allows the kernel to run from non-volatile storage
1974 directly addressable by the CPU, such as NOR flash. This saves RAM
1975 space since the text section of the kernel is not loaded from flash
1976 to RAM. Read-write sections, such as the data section and stack,
1977 are still copied to RAM. The XIP kernel is not compressed since
1978 it has to run directly from flash, so it will take more space to
1979 store it. The flash address used to link the kernel object files,
1980 and for storing it, is configuration dependent. Therefore, if you
1981 say Y here, you must know the proper physical address where to
1982 store the kernel image depending on your own flash memory usage.
1983
1984 Also note that the make target becomes "make xipImage" rather than
1985 "make zImage" or "make Image". The final kernel binary to put in
1986 ROM memory will be arch/arm/boot/xipImage.
1987
1988 If unsure, say N.
1989
1990config XIP_PHYS_ADDR
1991 hex "XIP Kernel Physical Location"
1992 depends on XIP_KERNEL
1993 default "0x00080000"
1994 help
1995 This is the physical address in your flash memory the kernel will
1996 be linked for and stored to. This address is dependent on your
1997 own flash usage.
1998
Richard Purdiec587e4a2007-02-06 21:29:00 +01001999config KEXEC
2000 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002001 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002002 help
2003 kexec is a system call that implements the ability to shutdown your
2004 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002005 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002006 you can start any kernel with it, not just Linux.
2007
2008 It is an ongoing process to be certain the hardware in a machine
2009 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002010 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002011
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002012config ATAGS_PROC
2013 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002014 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002015 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002016 help
2017 Should the atags used to boot the kernel be exported in an "atags"
2018 file in procfs. Useful with kexec.
2019
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002020config CRASH_DUMP
2021 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002022 help
2023 Generate crash dump after being started by kexec. This should
2024 be normally only set in special crash dump kernels which are
2025 loaded in the main kernel with kexec-tools into a specially
2026 reserved region and then later executed after a crash by
2027 kdump/kexec. The crash dump kernel must be compiled to a
2028 memory address not used by the main kernel
2029
2030 For more details see Documentation/kdump/kdump.txt
2031
Eric Miaoe69edc792010-07-05 15:56:50 +02002032config AUTO_ZRELADDR
2033 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002034 help
2035 ZRELADDR is the physical address where the decompressed kernel
2036 image will be placed. If AUTO_ZRELADDR is selected, the address
2037 will be determined at run-time by masking the current IP with
2038 0xf8000000. This assumes the zImage being placed in the first 128MB
2039 from start of memory.
2040
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041endmenu
2042
Russell Kingac9d7ef2008-08-18 17:26:00 +01002043menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046
Russell Kingac9d7ef2008-08-18 17:26:00 +01002047source "drivers/cpuidle/Kconfig"
2048
2049endmenu
2050
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051menu "Floating point emulation"
2052
2053comment "At least one emulation must be selected"
2054
2055config FPE_NWFPE
2056 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002057 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002058 ---help---
2059 Say Y to include the NWFPE floating point emulator in the kernel.
2060 This is necessary to run most binaries. Linux does not currently
2061 support floating point hardware so you need to say Y here even if
2062 your machine has an FPA or floating point co-processor podule.
2063
2064 You may say N here if you are going to load the Acorn FPEmulator
2065 early in the bootup.
2066
2067config FPE_NWFPE_XP
2068 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002069 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070 help
2071 Say Y to include 80-bit support in the kernel floating-point
2072 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2073 Note that gcc does not generate 80-bit operations by default,
2074 so in most cases this option only enlarges the size of the
2075 floating point emulator without any good reason.
2076
2077 You almost surely want to say N here.
2078
2079config FPE_FASTFPE
2080 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002081 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082 ---help---
2083 Say Y here to include the FAST floating point emulator in the kernel.
2084 This is an experimental much faster emulator which now also has full
2085 precision for the mantissa. It does not support any exceptions.
2086 It is very simple, and approximately 3-6 times faster than NWFPE.
2087
2088 It should be sufficient for most programs. It may be not suitable
2089 for scientific calculations, but you have to check this for yourself.
2090 If you do not feel you need a faster FP emulation you should better
2091 choose NWFPE.
2092
2093config VFP
2094 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002095 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096 help
2097 Say Y to include VFP support code in the kernel. This is needed
2098 if your hardware includes a VFP unit.
2099
2100 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2101 release notes and additional status information.
2102
2103 Say N if your target does not have VFP hardware.
2104
Catalin Marinas25ebee02007-09-25 15:22:24 +01002105config VFPv3
2106 bool
2107 depends on VFP
2108 default y if CPU_V7
2109
Catalin Marinasb5872db2008-01-10 19:16:17 +01002110config NEON
2111 bool "Advanced SIMD (NEON) Extension support"
2112 depends on VFPv3 && CPU_V7
2113 help
2114 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2115 Extension.
2116
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002117config KERNEL_MODE_NEON
2118 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002119 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002120 help
2121 Say Y to include support for NEON in kernel mode.
2122
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123endmenu
2124
2125menu "Userspace binary formats"
2126
2127source "fs/Kconfig.binfmt"
2128
2129config ARTHUR
2130 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002131 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132 help
2133 Say Y here to include the kernel code necessary if you want to run
2134 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2135 experimental; if this sounds frightening, say N and sleep in peace.
2136 You can also say M here to compile this support as a module (which
2137 will be called arthur).
2138
2139endmenu
2140
2141menu "Power management options"
2142
Russell Kingeceab4a2005-11-15 11:31:41 +00002143source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144
Johannes Bergf4cb5702007-12-08 02:14:00 +01002145config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002146 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002147 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002148 def_bool y
2149
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002150config ARM_CPU_SUSPEND
2151 def_bool PM_SLEEP
2152
Sebastian Capella603fb422014-03-25 01:20:29 +01002153config ARCH_HIBERNATION_POSSIBLE
2154 bool
2155 depends on MMU
2156 default y if ARCH_SUSPEND_POSSIBLE
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158endmenu
2159
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002160source "net/Kconfig"
2161
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002162source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163
2164source "fs/Kconfig"
2165
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166source "arch/arm/Kconfig.debug"
2167
2168source "security/Kconfig"
2169
2170source "crypto/Kconfig"
2171
2172source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002173
2174source "arch/arm/kvm/Kconfig"