blob: 86e2202565e6cf9a93fd3fa301cf49718305563c [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Riku Voipio957e3fa2014-12-12 16:57:44 -08008 select ARCH_HAS_GCOV_PROFILE_ALL
Mark Salterd7018842013-10-07 22:07:58 -04009 select ARCH_MIGHT_HAVE_PC_PARPORT
Peter Zijlstra4badad32014-06-06 19:53:16 +020010 select ARCH_SUPPORTS_ATOMIC_RMW
Kim Phillips017f1612013-11-06 05:15:24 +010011 select ARCH_USE_BUILTIN_BSWAP
Will Deacon0cbad9c2013-10-09 17:19:22 +010012 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010013 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010014 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010015 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacondce5c9e2013-12-17 19:50:16 +010017 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
Laura Abbott36d0fd22014-10-09 15:26:42 -070018 select GENERIC_ALLOCATOR
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010019 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010020 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010021 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010022 select GENERIC_IRQ_PROBE
23 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010024 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070025 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010026 select GENERIC_SMP_IDLE_THREAD
27 select GENERIC_STRNCPY_FROM_USER
28 select GENERIC_STRNLEN_USER
Marc Zyngiera71b0922014-08-26 11:03:18 +010029 select HANDLE_DOMAIN_IRQ
Russell Kingb1b3f492012-10-06 17:12:25 +010030 select HARDIRQS_SW_RESEND
AKASHI Takahiro7a017722014-02-25 18:16:24 +090031 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
Rabin Vincent09f05d82012-02-18 17:52:41 +010032 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060033 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010034 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010035 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010036 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010037 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010038 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010039 select HAVE_C_RECORDMCOUNT
40 select HAVE_DEBUG_KMEMLEAK
41 select HAVE_DMA_API_DEBUG
42 select HAVE_DMA_ATTRS
43 select HAVE_DMA_CONTIGUOUS if MMU
44 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010045 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
47 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
48 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
49 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
51 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010052 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070054 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select HAVE_KERNEL_LZMA
56 select HAVE_KERNEL_LZO
57 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010058 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080059 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010060 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010061 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010062 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010063 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010064 select HAVE_PERF_REGS
65 select HAVE_PERF_USER_STACK_DUMP
Steve Cappera0ad5492014-10-09 15:29:18 -070066 select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE)
Will Deacone513f8b2010-06-25 12:24:53 +010067 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010068 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070069 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070070 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010071 select IRQ_FORCED_THREADING
Russell King171b3f02013-09-12 21:24:42 +010072 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040073 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010074 select OLD_SIGACTION
75 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010076 select PERF_USE_VMALLOC
77 select RTC_LIB
78 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010079 # Above selects are sorted alphabetically; please add new ones
80 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 help
82 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000083 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000085 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 Europe. There is an ARM Linux project with a web page at
87 <http://www.arm.linux.org.uk/>.
88
Russell King74facff2011-06-02 11:16:22 +010089config ARM_HAS_SG_CHAIN
Laura Abbott308c09f2014-08-08 14:23:25 -070090 select ARCH_HAS_SG_CHAIN
Russell King74facff2011-06-02 11:16:22 +010091 bool
92
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020093config NEED_SG_DMA_LENGTH
94 bool
95
96config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020097 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010098 select ARM_HAS_SG_CHAIN
99 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +0200100
Seung-Woo Kim60460ab2013-02-06 13:21:14 +0900101if ARM_DMA_USE_IOMMU
102
103config ARM_DMA_IOMMU_ALIGNMENT
104 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
105 range 4 9
106 default 8
107 help
108 DMA mapping framework by default aligns all buffers to the smallest
109 PAGE_SIZE order which is greater than or equal to the requested buffer
110 size. This works well for buffers up to a few hundreds kilobytes, but
111 for larger buffers it just a waste of address space. Drivers which has
112 relatively small addressing window (like 64Mib) might run out of
113 virtual space with just a few allocations.
114
115 With this parameter you can specify the maximum PAGE_SIZE order for
116 DMA IOMMU buffers. Larger buffers will be aligned only to this
117 specified order. The order is expressed as a power of two multiplied
118 by the PAGE_SIZE.
119
120endif
121
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100122config MIGHT_HAVE_PCI
123 bool
124
Ralf Baechle75e71532007-02-09 17:08:58 +0000125config SYS_SUPPORTS_APM_EMULATION
126 bool
127
Linus Walleijbc581772009-09-15 17:30:37 +0100128config HAVE_TCM
129 bool
130 select GENERIC_ALLOCATOR
131
Russell Kinge119bff2010-01-10 17:23:29 +0000132config HAVE_PROC_CPU
133 bool
134
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700135config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000136 bool
Al Viro5ea81762007-02-11 15:41:31 +0000137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138config EISA
139 bool
140 ---help---
141 The Extended Industry Standard Architecture (EISA) bus was
142 developed as an open alternative to the IBM MicroChannel bus.
143
144 The EISA bus provided some of the features of the IBM MicroChannel
145 bus while maintaining backward compatibility with cards made for
146 the older ISA bus. The EISA bus saw limited use between 1988 and
147 1995 when it was made obsolete by the PCI bus.
148
149 Say Y here if you are building a kernel for an EISA-based machine.
150
151 Otherwise, say N.
152
153config SBUS
154 bool
155
Russell Kingf16fb1e2007-04-28 09:59:37 +0100156config STACKTRACE_SUPPORT
157 bool
158 default y
159
Nicolas Pitref76e9152008-04-24 01:31:46 -0400160config HAVE_LATENCYTOP_SUPPORT
161 bool
162 depends on !SMP
163 default y
164
Russell Kingf16fb1e2007-04-28 09:59:37 +0100165config LOCKDEP_SUPPORT
166 bool
167 default y
168
Russell King7ad1bcb2006-08-27 12:07:02 +0100169config TRACE_IRQFLAGS_SUPPORT
170 bool
171 default y
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173config RWSEM_XCHGADD_ALGORITHM
174 bool
Will Deacon8a874112014-05-02 17:06:19 +0100175 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
David Howellsf0d1b0b2006-12-08 02:37:49 -0800177config ARCH_HAS_ILOG2_U32
178 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800179
180config ARCH_HAS_ILOG2_U64
181 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800182
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100183config ARCH_HAS_BANDGAP
184 bool
185
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800186config GENERIC_HWEIGHT
187 bool
188 default y
189
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190config GENERIC_CALIBRATE_DELAY
191 bool
192 default y
193
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100194config ARCH_MAY_HAVE_PC_FDC
195 bool
196
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800197config ZONE_DMA
198 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800199
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800200config NEED_DMA_MAP_STATE
201 def_bool y
202
David A. Longc7edc9e2014-03-07 11:23:04 -0500203config ARCH_SUPPORTS_UPROBES
204 def_bool y
205
Rob Herring58af4a22012-03-20 14:33:01 -0500206config ARCH_HAS_DMA_SET_COHERENT_MASK
207 bool
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209config GENERIC_ISA_DMA
210 bool
211
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212config FIQ
213 bool
214
Rob Herring13a50452012-02-07 09:28:22 -0600215config NEED_RET_TO_USER
216 bool
217
Al Viro034d2f52005-12-19 16:27:59 -0500218config ARCH_MTD_XIP
219 bool
220
Hyok S. Choic760fc12006-03-27 15:18:50 +0100221config VECTORS_BASE
222 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900223 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100224 default DRAM_BASE if REMAP_VECTORS_TO_RAM
225 default 0x00000000
226 help
Russell King19accfd2013-07-04 11:40:32 +0100227 The base address of exception vectors. This must be two pages
228 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100229
Russell Kingdc21af92011-01-04 19:09:43 +0000230config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100231 bool "Patch physical to virtual translations at runtime" if EMBEDDED
232 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100233 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000234 depends on !ARCH_REALVIEW || !SPARSEMEM
235 help
Russell King111e9a52011-05-12 10:02:42 +0100236 Patch phys-to-virt and virt-to-phys translation functions at
237 boot and module load time according to the position of the
238 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000239
Russell King111e9a52011-05-12 10:02:42 +0100240 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100241 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000242
Russell Kingc1beced2011-08-10 10:23:45 +0100243 Only disable this option if you know that you do not require
244 this feature (eg, building a kernel for a single machine) and
245 you need to shrink the kernel to the minimal size.
246
Rob Herringc334bc12012-03-04 22:03:33 -0600247config NEED_MACH_IO_H
248 bool
249 help
250 Select this when mach/io.h is required to provide special
251 definitions for this platform. The need for mach/io.h should
252 be avoided when possible.
253
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400254config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400255 bool
Russell King111e9a52011-05-12 10:02:42 +0100256 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400257 Select this when mach/memory.h is required to provide special
258 definitions for this platform. The need for mach/memory.h should
259 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400260
261config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100262 hex "Physical address of main memory" if MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100263 depends on !ARM_PATCH_PHYS_VIRT
Nicolas Pitre974c0722011-12-02 23:09:42 +0100264 default DRAM_BASE if !MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100265 default 0x00000000 if ARCH_EBSA110 || \
266 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
267 ARCH_FOOTBRIDGE || \
268 ARCH_INTEGRATOR || \
269 ARCH_IOP13XX || \
270 ARCH_KS8695 || \
271 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
272 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
273 default 0x20000000 if ARCH_S5PV210
274 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
275 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
276 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
277 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
278 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400279 help
280 Please provide the physical address corresponding to the
281 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000282
Simon Glass87e040b2011-08-16 23:44:26 +0100283config GENERIC_BUG
284 def_bool y
285 depends on BUG
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287source "init/Kconfig"
288
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700289source "kernel/Kconfig.freezer"
290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291menu "System Type"
292
Hyok S. Choi3c427972009-07-24 12:35:00 +0100293config MMU
294 bool "MMU-based Paged Memory Management Support"
295 default y
296 help
297 Select if you want MMU-based virtualised addressing space
298 support by paged memory management. If unsure, say 'Y'.
299
Russell Kingccf50e22010-03-15 19:03:06 +0000300#
301# The "ARM system type" choice list is ordered alphabetically by option
302# text. Please add new entries in the option alphabetic order.
303#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304choice
305 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100306 default ARCH_VERSATILE if !MMU
307 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Rob Herring387798b2012-09-06 13:41:12 -0500309config ARCH_MULTIPLATFORM
310 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100311 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600312 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700313 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500314 select ARM_PATCH_PHYS_VIRT
315 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500316 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600317 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600318 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100319 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500320 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600321 select SPARSE_IRQ
322 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600323
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100324config ARCH_REALVIEW
325 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100328 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200329 select COMMON_CLK
330 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100331 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100332 select GPIO_PL061 if GPIOLIB
333 select ICST
334 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000335 select PLAT_VERSATILE
Pawel Moll81cc3f82014-11-25 18:17:34 +0000336 select PLAT_VERSATILE_SCHED_CLOCK
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 help
338 This enables support for ARM Ltd RealView boards.
339
340config ARCH_VERSATILE
341 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100342 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100343 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100344 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100346 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100347 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900348 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000349 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000350 select PLAT_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100351 select PLAT_VERSATILE_CLOCK
Pawel Moll81cc3f82014-11-25 18:17:34 +0000352 select PLAT_VERSATILE_SCHED_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100353 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100354 help
355 This enables support for ARM Ltd Versatile board.
356
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100357config ARCH_AT91
358 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100359 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100360 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100361 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500362 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800363 select PINCTRL
Nicolas Ferred48346c2014-11-21 16:41:50 +0100364 select PINCTRL_AT91
365 select USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100366 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100367 This enables support for systems based on Atmel
Nicolas Ferre32963a82014-11-21 16:44:31 +0100368 AT91RM9200, AT91SAM9 and SAMA5 processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369
Russell King93e22562012-10-12 14:20:52 +0100370config ARCH_CLPS711X
371 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400372 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400373 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400374 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100375 select COMMON_CLK
376 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400377 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400378 select MFD_SYSCON
Alexander Shiyane4e3a372014-08-19 16:31:15 +0400379 select SOC_BUS
Russell King93e22562012-10-12 14:20:52 +0100380 help
381 Support for Cirrus Logic 711x/721x/731x based boards.
382
Russell King788c9702009-04-26 14:21:59 +0100383config ARCH_GEMINI
384 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100385 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200386 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100387 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200388 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100389 help
390 Support for the Cortina Systems Gemini family SoCs
391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392config ARCH_EBSA110
393 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100394 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000395 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100396 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600397 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400398 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700399 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 help
401 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000402 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 Ethernet interface, two PCMCIA sockets, two serial ports and a
404 parallel port.
405
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100406config ARCH_EFM32
407 bool "Energy Micro efm32"
408 depends on !MMU
409 select ARCH_REQUIRE_GPIOLIB
410 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100411 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100412 select CLKSRC_OF
413 select COMMON_CLK
414 select CPU_V7M
415 select GENERIC_CLOCKEVENTS
416 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700417 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100418 select SPARSE_IRQ
419 select USE_OF
420 help
421 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
422 processors.
423
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000424config ARCH_EP93XX
425 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100426 select ARCH_HAS_HOLES_MEMORYMODEL
427 select ARCH_REQUIRE_GPIOLIB
428 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000429 select ARM_AMBA
430 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100431 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100432 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000433 help
434 This enables support for the Cirrus EP93xx series of CPUs.
435
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436config ARCH_FOOTBRIDGE
437 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000438 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000440 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200441 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600442 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400443 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000444 help
445 Support for systems based on the DC21285 companion chip
446 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100448config ARCH_NETX
449 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100450 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100451 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000452 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100453 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000454 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100455 This enables support for systems based on the Hilscher NetX Soc
456
Russell King3b938be2007-05-12 11:25:44 +0100457config ARCH_IOP13XX
458 bool "IOP13xx-based"
459 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100460 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400461 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600462 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select PCI
464 select PLAT_IOP
465 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000466 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100467 help
468 Support for Intel's IOP13XX (XScale) family of processors.
469
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100470config ARCH_IOP32X
471 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100472 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100473 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000474 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200475 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600476 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100477 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100478 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000479 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100480 Support for Intel's 80219 and IOP32X (XScale) family of
481 processors.
482
483config ARCH_IOP33X
484 bool "IOP33x-based"
485 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100486 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000487 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200488 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600489 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100490 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100491 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100492 help
493 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494
Russell King3b938be2007-05-12 11:25:44 +0100495config ARCH_IXP4XX
496 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100497 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500498 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100499 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100500 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100501 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000502 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100503 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100504 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100505 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600506 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200507 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100508 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100509 help
Russell King3b938be2007-05-12 11:25:44 +0100510 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100511
Saeed Bisharaedabd382009-08-06 15:12:43 +0300512config ARCH_DOVE
513 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300514 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100515 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300516 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100517 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100518 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100519 select PINCTRL
520 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200521 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300522 help
523 Support for the Marvell Dove SoC 88AP510
524
Russell King788c9702009-04-26 14:21:59 +0100525config ARCH_MV78XX0
526 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100528 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100529 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100530 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100531 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200532 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100533 help
534 Support for the following Marvell MV78xx0 series SoCs:
535 MV781x0, MV782x0.
536
537config ARCH_ORION5X
538 bool "Marvell Orion"
539 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700540 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100541 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100542 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100543 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100544 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200545 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100546 help
547 Support for the following Marvell Orion 5x series SoCs:
548 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
549 Orion-2 (5281), Orion-1-90 (6183).
550
551config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500552 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100553 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100554 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100555 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100556 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100557 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800558 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800559 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800560 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800561 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100562 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400563 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100564 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500565 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100566
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100567config ARCH_KS8695
568 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100569 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200570 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100571 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200572 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100574 help
575 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
576 System-on-Chip devices.
577
Russell King788c9702009-04-26 14:21:59 +0100578config ARCH_W90X900
579 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100580 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100581 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100582 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100583 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100584 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200585 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100586 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
587 At present, the w90x900 has been renamed nuc900, regarding
588 the ARM series product line, you can login the following
589 link address to know more.
590
591 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
592 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400593
Russell King93e22562012-10-12 14:20:52 +0100594config ARCH_LPC32XX
595 bool "NXP LPC32XX"
596 select ARCH_REQUIRE_GPIOLIB
597 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000598 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100599 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100600 select CPU_ARM926T
601 select GENERIC_CLOCKEVENTS
602 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100603 select USE_OF
604 help
605 Support for the NXP LPC32XX family of processors
606
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700608 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100609 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100610 select ARCH_MTD_XIP
611 select ARCH_REQUIRE_GPIOLIB
612 select ARM_CPU_SUSPEND if PM
613 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100614 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100615 select CLKSRC_MMIO
Robert Jarzmik6f6caea2014-07-14 18:52:03 +0200616 select CLKSRC_OF
Eric Miao981d0f32007-07-24 01:22:43 +0100617 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800618 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100619 select HAVE_IDE
620 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800621 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800622 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000623 help
eric miao2c8086a2007-09-11 19:13:17 -0700624 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600626config ARCH_MSM
627 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700628 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700629 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100630 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800631 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800632 Support for Qualcomm MSM/QSD based systems. This runs on the
633 apps processor of the MSM/QSD and depends on a shared memory
634 interface to the modem processor which runs the baseband
635 stack and controls some vital subsystems
636 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800637
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100638config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100639 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100640 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100641 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900642 select CLKDEV_LOOKUP
Magnus Damm0ed82bc2014-08-25 12:45:41 +0900643 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100644 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800645 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800646 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900647 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000648 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000649 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000650 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700651 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200652 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100653 select PM_GENERIC_DOMAINS if PM
Magnus Damm0cdc23d2014-08-25 12:45:50 +0900654 select SH_CLK_CPG
Russell Kingb1b3f492012-10-06 17:12:25 +0100655 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000656 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100657 Support for Renesas ARM SoC platforms using a non-multiplatform
658 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
659 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661config ARCH_RPC
662 bool "RiscPC"
663 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100664 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100665 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000666 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100667 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100668 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200669 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100670 select HAVE_PATA_PLATFORM
671 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600672 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400673 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700674 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100675 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 help
677 On the Acorn Risc-PC, Linux can support the internal IDE disk and
678 CD-ROM interface, serial and parallel port, and the floppy drive.
679
680config ARCH_SA1100
681 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100682 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700683 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100684 select ARCH_SPARSEMEM_ENABLE
685 select CLKDEV_LOOKUP
686 select CLKSRC_MMIO
687 select CPU_FREQ
688 select CPU_SA1100
689 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200690 select HAVE_IDE
Dmitry Eremin-Solenikov1eca42b2014-11-28 15:56:54 +0100691 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100692 select ISA
Dmitry Eremin-Solenikovaffcab32014-11-28 15:55:16 +0100693 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400694 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100695 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000696 help
697 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900699config ARCH_S3C24XX
700 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900701 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100702 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100703 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200704 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800705 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900706 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900707 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900710 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600711 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900712 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900714 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
715 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
716 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
717 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900718
Ben Dooksa08ab632008-10-21 14:06:39 +0100719config ARCH_S3C64XX
720 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900721 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200722 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100723 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100724 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200726 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900727 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900728 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800729 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900730 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900731 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900732 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100733 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700734 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100736 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select S3C_DEV_NAND
738 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900739 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900740 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900741 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100742 help
743 Samsung S3C64XX series based systems
744
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100745config ARCH_DAVINCI
746 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100747 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700748 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100749 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700750 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100751 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100752 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500754 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530755 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100756 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100757 help
758 Support for TI's DaVinci platform.
759
Tony Lindgrena0694862013-01-11 11:24:20 -0800760config ARCH_OMAP1
761 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600762 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100763 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800764 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100765 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200766 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100767 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100768 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800769 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800770 select HAVE_IDE
771 select IRQ_DOMAIN
772 select NEED_MACH_IO_H if PCCARD
773 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100774 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800775 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800776
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777endchoice
778
Rob Herring387798b2012-09-06 13:41:12 -0500779menu "Multiple platform selection"
780 depends on ARCH_MULTIPLATFORM
781
782comment "CPU Core family selection"
783
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100784config ARCH_MULTI_V4
785 bool "ARMv4 based platforms (FA526)"
786 depends on !ARCH_MULTI_V6_V7
787 select ARCH_MULTI_V4_V5
788 select CPU_FA526
789
Rob Herring387798b2012-09-06 13:41:12 -0500790config ARCH_MULTI_V4T
791 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500792 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100793 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200794 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
795 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
796 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500797
798config ARCH_MULTI_V5
799 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500800 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100802 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200803 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
804 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500805
806config ARCH_MULTI_V4_V5
807 bool
808
809config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800810 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500811 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600812 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500813
814config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800815 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500816 default y
817 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600819 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500820
821config ARCH_MULTI_V6_V7
822 bool
Rob Herring9352b052014-01-31 15:36:10 -0600823 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500824
825config ARCH_MULTI_CPU_AUTO
826 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
827 select ARCH_MULTI_V5
828
829endmenu
830
Rob Herring05e2a3d2013-12-05 10:04:54 -0600831config ARCH_VIRT
832 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600833 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600834 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600835 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600836 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600837
Russell Kingccf50e22010-03-15 19:03:06 +0000838#
839# This is sorted alphabetically by mach-* pathname. However, plat-*
840# Kconfigs may be included either alphabetically (according to the
841# plat- suffix) or along side the corresponding mach-* source.
842#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200843source "arch/arm/mach-mvebu/Kconfig"
844
Oleksij Rempeld9bfc862014-11-24 12:08:27 +0100845source "arch/arm/mach-asm9260/Kconfig"
846
Russell King95b8f202010-01-14 11:43:54 +0000847source "arch/arm/mach-at91/Kconfig"
848
Anders Berg1d22924e2014-05-23 11:08:35 +0200849source "arch/arm/mach-axxia/Kconfig"
850
Christian Daudt8ac49e02012-11-19 09:46:10 -0800851source "arch/arm/mach-bcm/Kconfig"
852
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200853source "arch/arm/mach-berlin/Kconfig"
854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855source "arch/arm/mach-clps711x/Kconfig"
856
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300857source "arch/arm/mach-cns3xxx/Kconfig"
858
Russell King95b8f202010-01-14 11:43:54 +0000859source "arch/arm/mach-davinci/Kconfig"
860
Baruch Siachdf8d7422015-01-14 10:40:30 +0200861source "arch/arm/mach-digicolor/Kconfig"
862
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/mach-dove/Kconfig"
864
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000865source "arch/arm/mach-ep93xx/Kconfig"
866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867source "arch/arm/mach-footbridge/Kconfig"
868
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200869source "arch/arm/mach-gemini/Kconfig"
870
Rob Herring387798b2012-09-06 13:41:12 -0500871source "arch/arm/mach-highbank/Kconfig"
872
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800873source "arch/arm/mach-hisi/Kconfig"
874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875source "arch/arm/mach-integrator/Kconfig"
876
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100877source "arch/arm/mach-iop32x/Kconfig"
878
879source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880
Dan Williams285f5fa2006-12-07 02:59:39 +0100881source "arch/arm/mach-iop13xx/Kconfig"
882
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883source "arch/arm/mach-ixp4xx/Kconfig"
884
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400885source "arch/arm/mach-keystone/Kconfig"
886
Russell King95b8f202010-01-14 11:43:54 +0000887source "arch/arm/mach-ks8695/Kconfig"
888
Carlo Caione3b8f5032014-09-10 22:16:59 +0200889source "arch/arm/mach-meson/Kconfig"
890
Russell King95b8f202010-01-14 11:43:54 +0000891source "arch/arm/mach-msm/Kconfig"
892
Jonas Jensen17723fd32013-12-18 13:58:45 +0100893source "arch/arm/mach-moxart/Kconfig"
894
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200895source "arch/arm/mach-mv78xx0/Kconfig"
896
Shawn Guo3995eb82012-09-13 19:48:07 +0800897source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898
Matthias Bruggerf682a212014-05-13 01:06:13 +0200899source "arch/arm/mach-mediatek/Kconfig"
900
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800901source "arch/arm/mach-mxs/Kconfig"
902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000906
Daniel Tang9851ca52013-06-11 18:40:17 +1000907source "arch/arm/mach-nspire/Kconfig"
908
Tony Lindgrend48af152005-07-10 19:58:17 +0100909source "arch/arm/plat-omap/Kconfig"
910
911source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912
Tony Lindgren1dbae812005-11-10 14:26:51 +0000913source "arch/arm/mach-omap2/Kconfig"
914
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400915source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400916
Rob Herring387798b2012-09-06 13:41:12 -0500917source "arch/arm/mach-picoxcell/Kconfig"
918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-pxa/Kconfig"
920source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921
Russell King95b8f202010-01-14 11:43:54 +0000922source "arch/arm/mach-mmp/Kconfig"
923
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600924source "arch/arm/mach-qcom/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-realview/Kconfig"
927
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200928source "arch/arm/mach-rockchip/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300931
Rob Herring387798b2012-09-06 13:41:12 -0500932source "arch/arm/mach-socfpga/Kconfig"
933
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100934source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100935
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100936source "arch/arm/mach-sti/Kconfig"
937
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900938source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939
Ben Dooks431107e2010-01-26 10:11:04 +0900940source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100941
Kukjin Kim170f4e42010-02-24 16:40:44 +0900942source "arch/arm/mach-s5pv210/Kconfig"
943
Kukjin Kim83014572011-11-06 13:54:56 +0900944source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500945source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900946
Russell King882d01f2010-03-02 23:40:15 +0000947source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Maxime Ripard3b526342012-11-08 12:40:16 +0100949source "arch/arm/mach-sunxi/Kconfig"
950
Barry Song156a0992012-08-23 13:41:58 +0800951source "arch/arm/mach-prima2/Kconfig"
952
Erik Gillingc5f80062010-01-21 16:53:02 -0800953source "arch/arm/mach-tegra/Kconfig"
954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
959source "arch/arm/mach-versatile/Kconfig"
960
Russell Kingceade892010-02-11 21:44:53 +0000961source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000962source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000963
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300964source "arch/arm/mach-vt8500/Kconfig"
965
wanzongshun7ec80dd2008-12-03 03:55:38 +0100966source "arch/arm/mach-w90x900/Kconfig"
967
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600968source "arch/arm/mach-zynq/Kconfig"
969
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970# Definitions to make life easier
971config ARCH_ACORN
972 bool
973
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100974config PLAT_IOP
975 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700976 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100977
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400978config PLAT_ORION
979 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100980 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100981 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100982 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200983 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400984
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200985config PLAT_ORION_LEGACY
986 bool
987 select PLAT_ORION
988
Eric Miaobd5ce432009-01-20 12:06:01 +0800989config PLAT_PXA
990 bool
991
Russell Kingf4b8b312010-01-14 12:48:06 +0000992config PLAT_VERSATILE
993 bool
994
Russell Kinge3887712010-01-14 13:30:16 +0000995config ARM_TIMER_SP804
996 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100997 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -0500998 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +0000999
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001000source "arch/arm/firmware/Kconfig"
1001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002source arch/arm/mm/Kconfig
1003
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001004config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001005 bool "Enable iWMMXt support"
1006 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1007 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001008 help
1009 Enable support for iWMMXt context switching at run time if
1010 running on a CPU that supports it.
1011
eric miao52108642010-12-13 09:42:34 +01001012config MULTI_IRQ_HANDLER
1013 bool
1014 help
1015 Allow each machine to specify it's own IRQ handler at run time.
1016
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001017if !MMU
1018source "arch/arm/Kconfig-nommu"
1019endif
1020
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001021config PJ4B_ERRATA_4742
1022 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1023 depends on CPU_PJ4B && MACH_ARMADA_370
1024 default y
1025 help
1026 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1027 Event (WFE) IDLE states, a specific timing sensitivity exists between
1028 the retiring WFI/WFE instructions and the newly issued subsequent
1029 instructions. This sensitivity can result in a CPU hang scenario.
1030 Workaround:
1031 The software must insert either a Data Synchronization Barrier (DSB)
1032 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1033 instruction
1034
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001035config ARM_ERRATA_326103
1036 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1037 depends on CPU_V6
1038 help
1039 Executing a SWP instruction to read-only memory does not set bit 11
1040 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1041 treat the access as a read, preventing a COW from occurring and
1042 causing the faulting task to livelock.
1043
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001044config ARM_ERRATA_411920
1045 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001046 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001047 help
1048 Invalidation of the Instruction Cache operation can
1049 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1050 It does not affect the MPCore. This option enables the ARM Ltd.
1051 recommended workaround.
1052
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001053config ARM_ERRATA_430973
1054 bool "ARM errata: Stale prediction on replaced interworking branch"
1055 depends on CPU_V7
1056 help
1057 This option enables the workaround for the 430973 Cortex-A8
1058 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1059 interworking branch is replaced with another code sequence at the
1060 same virtual address, whether due to self-modifying code or virtual
1061 to physical address re-mapping, Cortex-A8 does not recover from the
1062 stale interworking branch prediction. This results in Cortex-A8
1063 executing the new code sequence in the incorrect ARM or Thumb state.
1064 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1065 and also flushes the branch target cache at every context switch.
1066 Note that setting specific bits in the ACTLR register may not be
1067 available in non-secure mode.
1068
Catalin Marinas855c5512009-04-30 17:06:15 +01001069config ARM_ERRATA_458693
1070 bool "ARM errata: Processor deadlock when a false hazard is created"
1071 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001072 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001073 help
1074 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1075 erratum. For very specific sequences of memory operations, it is
1076 possible for a hazard condition intended for a cache line to instead
1077 be incorrectly associated with a different cache line. This false
1078 hazard might then cause a processor deadlock. The workaround enables
1079 the L1 caching of the NEON accesses and disables the PLD instruction
1080 in the ACTLR register. Note that setting specific bits in the ACTLR
1081 register may not be available in non-secure mode.
1082
Catalin Marinas0516e462009-04-30 17:06:20 +01001083config ARM_ERRATA_460075
1084 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1085 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001086 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001087 help
1088 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1089 erratum. Any asynchronous access to the L2 cache may encounter a
1090 situation in which recent store transactions to the L2 cache are lost
1091 and overwritten with stale memory contents from external memory. The
1092 workaround disables the write-allocate mode for the L2 cache via the
1093 ACTLR register. Note that setting specific bits in the ACTLR register
1094 may not be available in non-secure mode.
1095
Will Deacon9f050272010-09-14 09:51:43 +01001096config ARM_ERRATA_742230
1097 bool "ARM errata: DMB operation may be faulty"
1098 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001099 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001100 help
1101 This option enables the workaround for the 742230 Cortex-A9
1102 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1103 between two write operations may not ensure the correct visibility
1104 ordering of the two writes. This workaround sets a specific bit in
1105 the diagnostic register of the Cortex-A9 which causes the DMB
1106 instruction to behave as a DSB, ensuring the correct behaviour of
1107 the two writes.
1108
Will Deacona672e992010-09-14 09:53:02 +01001109config ARM_ERRATA_742231
1110 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1111 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001112 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001113 help
1114 This option enables the workaround for the 742231 Cortex-A9
1115 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1116 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1117 accessing some data located in the same cache line, may get corrupted
1118 data due to bad handling of the address hazard when the line gets
1119 replaced from one of the CPUs at the same time as another CPU is
1120 accessing it. This workaround sets specific bits in the diagnostic
1121 register of the Cortex-A9 which reduces the linefill issuing
1122 capabilities of the processor.
1123
Jon Medhurst69155792013-06-07 10:35:35 +01001124config ARM_ERRATA_643719
1125 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1126 depends on CPU_V7 && SMP
1127 help
1128 This option enables the workaround for the 643719 Cortex-A9 (prior to
1129 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1130 register returns zero when it should return one. The workaround
1131 corrects this value, ensuring cache maintenance operations which use
1132 it behave as intended and avoiding data corruption.
1133
Will Deaconcdf357f2010-08-05 11:20:51 +01001134config ARM_ERRATA_720789
1135 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001136 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001137 help
1138 This option enables the workaround for the 720789 Cortex-A9 (prior to
1139 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1140 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1141 As a consequence of this erratum, some TLB entries which should be
1142 invalidated are not, resulting in an incoherency in the system page
1143 tables. The workaround changes the TLB flushing routines to invalidate
1144 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001145
1146config ARM_ERRATA_743622
1147 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1148 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001149 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001150 help
1151 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001152 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001153 optimisation in the Cortex-A9 Store Buffer may lead to data
1154 corruption. This workaround sets a specific bit in the diagnostic
1155 register of the Cortex-A9 which disables the Store Buffer
1156 optimisation, preventing the defect from occurring. This has no
1157 visible impact on the overall performance or power consumption of the
1158 processor.
1159
Will Deacon9a27c272011-02-18 16:36:35 +01001160config ARM_ERRATA_751472
1161 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001162 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001163 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001164 help
1165 This option enables the workaround for the 751472 Cortex-A9 (prior
1166 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1167 completion of a following broadcasted operation if the second
1168 operation is received by a CPU before the ICIALLUIS has completed,
1169 potentially leading to corrupted entries in the cache or TLB.
1170
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001171config ARM_ERRATA_754322
1172 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1173 depends on CPU_V7
1174 help
1175 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1176 r3p*) erratum. A speculative memory access may cause a page table walk
1177 which starts prior to an ASID switch but completes afterwards. This
1178 can populate the micro-TLB with a stale entry which may be hit with
1179 the new ASID. This workaround places two dsb instructions in the mm
1180 switching code so that no page table walks can cross the ASID switch.
1181
Will Deacon5dab26af2011-03-04 12:38:54 +01001182config ARM_ERRATA_754327
1183 bool "ARM errata: no automatic Store Buffer drain"
1184 depends on CPU_V7 && SMP
1185 help
1186 This option enables the workaround for the 754327 Cortex-A9 (prior to
1187 r2p0) erratum. The Store Buffer does not have any automatic draining
1188 mechanism and therefore a livelock may occur if an external agent
1189 continuously polls a memory location waiting to observe an update.
1190 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1191 written polling loops from denying visibility of updates to memory.
1192
Catalin Marinas145e10e2011-08-15 11:04:41 +01001193config ARM_ERRATA_364296
1194 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001195 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001196 help
1197 This options enables the workaround for the 364296 ARM1136
1198 r0p2 erratum (possible cache data corruption with
1199 hit-under-miss enabled). It sets the undocumented bit 31 in
1200 the auxiliary control register and the FI bit in the control
1201 register, thus disabling hit-under-miss without putting the
1202 processor into full low interrupt latency mode. ARM11MPCore
1203 is not affected.
1204
Will Deaconf630c1b2011-09-15 11:45:15 +01001205config ARM_ERRATA_764369
1206 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1207 depends on CPU_V7 && SMP
1208 help
1209 This option enables the workaround for erratum 764369
1210 affecting Cortex-A9 MPCore with two or more processors (all
1211 current revisions). Under certain timing circumstances, a data
1212 cache line maintenance operation by MVA targeting an Inner
1213 Shareable memory region may fail to proceed up to either the
1214 Point of Coherency or to the Point of Unification of the
1215 system. This workaround adds a DSB instruction before the
1216 relevant cache maintenance functions and sets a specific bit
1217 in the diagnostic control register of the SCU.
1218
Simon Horman7253b852012-09-28 02:12:45 +01001219config ARM_ERRATA_775420
1220 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1221 depends on CPU_V7
1222 help
1223 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1224 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1225 operation aborts with MMU exception, it might cause the processor
1226 to deadlock. This workaround puts DSB before executing ISB if
1227 an abort may occur on cache maintenance.
1228
Catalin Marinas93dc6882013-03-26 23:35:04 +01001229config ARM_ERRATA_798181
1230 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1231 depends on CPU_V7 && SMP
1232 help
1233 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1234 adequately shooting down all use of the old entries. This
1235 option enables the Linux kernel workaround for this erratum
1236 which sends an IPI to the CPUs that are running the same ASID
1237 as the one being invalidated.
1238
Will Deacon84b65042013-08-20 17:29:55 +01001239config ARM_ERRATA_773022
1240 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1241 depends on CPU_V7
1242 help
1243 This option enables the workaround for the 773022 Cortex-A15
1244 (up to r0p4) erratum. In certain rare sequences of code, the
1245 loop buffer may deliver incorrect instructions. This
1246 workaround disables the loop buffer to avoid the erratum.
1247
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248endmenu
1249
1250source "arch/arm/common/Kconfig"
1251
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252menu "Bus support"
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254config ISA
1255 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 help
1257 Find out whether you have ISA slots on your motherboard. ISA is the
1258 name of a bus system, i.e. the way the CPU talks to the other stuff
1259 inside your box. Other bus systems are PCI, EISA, MicroChannel
1260 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1261 newer boards don't support it. If you have ISA, say Y, otherwise N.
1262
Russell King065909b2006-01-04 15:44:16 +00001263# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264config ISA_DMA
1265 bool
Russell King065909b2006-01-04 15:44:16 +00001266 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267
Russell King065909b2006-01-04 15:44:16 +00001268# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001269config ISA_DMA_API
1270 bool
Al Viro5cae8412005-05-04 05:39:22 +01001271
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001273 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274 help
1275 Find out whether you have a PCI motherboard. PCI is the name of a
1276 bus system, i.e. the way the CPU talks to the other stuff inside
1277 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1278 VESA. If you have PCI, say Y, otherwise N.
1279
Anton Vorontsov52882172010-04-19 13:20:49 +01001280config PCI_DOMAINS
1281 bool
1282 depends on PCI
1283
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001284config PCI_NANOENGINE
1285 bool "BSE nanoEngine PCI support"
1286 depends on SA1100_NANOENGINE
1287 help
1288 Enable PCI on the BSE nanoEngine board.
1289
Matthew Wilcox36e23592007-07-10 10:54:40 -06001290config PCI_SYSCALL
1291 def_bool PCI
1292
Mike Rapoporta0113a92007-11-25 08:55:34 +01001293config PCI_HOST_ITE8152
1294 bool
1295 depends on PCI && MACH_ARMCORE
1296 default y
1297 select DMABOUNCE
1298
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001300source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001301
1302source "drivers/pcmcia/Kconfig"
1303
1304endmenu
1305
1306menu "Kernel Features"
1307
Dave Martin3b556582011-12-07 15:38:04 +00001308config HAVE_SMP
1309 bool
1310 help
1311 This option should be selected by machines which have an SMP-
1312 capable CPU.
1313
1314 The only effect of this option is to make the SMP-related
1315 options available to the user for configuration.
1316
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001318 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001319 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001320 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001321 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001322 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001323 help
1324 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001325 a system with only one CPU, say N. If you have a system with more
1326 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327
Robert Graffham4a474152014-01-23 15:55:29 -08001328 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001330 you say Y here, the kernel will run on many, but not all,
1331 uniprocessor machines. On a uniprocessor machine, the kernel
1332 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333
Paul Bolle395cf962011-08-15 02:02:26 +02001334 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001336 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337
1338 If you don't know what to do here, say N.
1339
Russell Kingf00ec482010-09-04 10:47:48 +01001340config SMP_ON_UP
1341 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001342 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001343 default y
1344 help
1345 SMP kernels contain instructions which fail on non-SMP processors.
1346 Enabling this option allows the kernel to modify itself to make
1347 these instructions safe. Disabling it allows about 1K of space
1348 savings.
1349
1350 If you don't know what to do here, say Y.
1351
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001352config ARM_CPU_TOPOLOGY
1353 bool "Support cpu topology definition"
1354 depends on SMP && CPU_V7
1355 default y
1356 help
1357 Support ARM cpu topology definition. The MPIDR register defines
1358 affinity between processors which is then used to describe the cpu
1359 topology of an ARM System.
1360
1361config SCHED_MC
1362 bool "Multi-core scheduler support"
1363 depends on ARM_CPU_TOPOLOGY
1364 help
1365 Multi-core scheduler support improves the CPU scheduler's decision
1366 making when dealing with multi-core CPU chips at a cost of slightly
1367 increased overhead in some places. If unsure say N here.
1368
1369config SCHED_SMT
1370 bool "SMT scheduler support"
1371 depends on ARM_CPU_TOPOLOGY
1372 help
1373 Improves the CPU scheduler's decision making when dealing with
1374 MultiThreading at a cost of slightly increased overhead in some
1375 places. If unsure say N here.
1376
Russell Kinga8cbcd92009-05-16 11:51:14 +01001377config HAVE_ARM_SCU
1378 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001379 help
1380 This option enables support for the ARM system coherency unit
1381
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001382config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001383 bool "Architected timer support"
1384 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001385 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001386 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001387 help
1388 This option enables support for the ARM architected timer
1389
Russell Kingf32f4ce2009-05-16 12:14:21 +01001390config HAVE_ARM_TWD
1391 bool
1392 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001393 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001394 help
1395 This options enables support for the ARM timer and watchdog unit
1396
Nicolas Pitree8db2882012-04-12 02:45:22 -04001397config MCPM
1398 bool "Multi-Cluster Power Management"
1399 depends on CPU_V7 && SMP
1400 help
1401 This option provides the common power management infrastructure
1402 for (multi-)cluster based systems, such as big.LITTLE based
1403 systems.
1404
Haojian Zhuangebf4a5c2014-04-15 14:52:00 +08001405config MCPM_QUAD_CLUSTER
1406 bool
1407 depends on MCPM
1408 help
1409 To avoid wasting resources unnecessarily, MCPM only supports up
1410 to 2 clusters by default.
1411 Platforms with 3 or 4 clusters that use MCPM must select this
1412 option to allow the additional clusters to be managed.
1413
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001414config BIG_LITTLE
1415 bool "big.LITTLE support (Experimental)"
1416 depends on CPU_V7 && SMP
1417 select MCPM
1418 help
1419 This option enables support selections for the big.LITTLE
1420 system architecture.
1421
1422config BL_SWITCHER
1423 bool "big.LITTLE switcher support"
1424 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001425 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001426 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001427 help
1428 The big.LITTLE "switcher" provides the core functionality to
1429 transparently handle transition between a cluster of A15's
1430 and a cluster of A7's in a big.LITTLE system.
1431
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001432config BL_SWITCHER_DUMMY_IF
1433 tristate "Simple big.LITTLE switcher user interface"
1434 depends on BL_SWITCHER && DEBUG_KERNEL
1435 help
1436 This is a simple and dummy char dev interface to control
1437 the big.LITTLE switcher core code. It is meant for
1438 debugging purposes only.
1439
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001440choice
1441 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001442 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001443 default VMSPLIT_3G
1444 help
1445 Select the desired split between kernel and user memory.
1446
1447 If you are not absolutely sure what you are doing, leave this
1448 option alone!
1449
1450 config VMSPLIT_3G
1451 bool "3G/1G user/kernel split"
1452 config VMSPLIT_2G
1453 bool "2G/2G user/kernel split"
1454 config VMSPLIT_1G
1455 bool "1G/3G user/kernel split"
1456endchoice
1457
1458config PAGE_OFFSET
1459 hex
Russell King006fa252014-02-26 19:40:46 +00001460 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001461 default 0x40000000 if VMSPLIT_1G
1462 default 0x80000000 if VMSPLIT_2G
1463 default 0xC0000000
1464
Linus Torvalds1da177e2005-04-16 15:20:36 -07001465config NR_CPUS
1466 int "Maximum number of CPUs (2-32)"
1467 range 2 32
1468 depends on SMP
1469 default "4"
1470
Russell Kinga054a812005-11-02 22:24:33 +00001471config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001472 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001473 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001474 help
1475 Say Y here to experiment with turning CPUs off and on. CPUs
1476 can be controlled through /sys/devices/system/cpu.
1477
Will Deacon2bdd4242012-12-12 19:20:52 +00001478config ARM_PSCI
1479 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1480 depends on CPU_V7
1481 help
1482 Say Y here if you want Linux to communicate with system firmware
1483 implementing the PSCI specification for CPU-centric power
1484 management operations described in ARM document number ARM DEN
1485 0022A ("Power State Coordination Interface System Software on
1486 ARM processors").
1487
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001488# The GPIO number here must be sorted by descending number. In case of
1489# a multiplatform kernel, we just want the highest value required by the
1490# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001491config ARCH_NR_GPIO
1492 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001493 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tomasz Figaaa425872014-07-03 13:17:12 +02001494 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1495 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001496 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001497 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001498 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001499 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001500 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001501 default 0
1502 help
1503 Maximum number of GPIOs in the system.
1504
1505 If unsure, leave the default value.
1506
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001507source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001508
Russell Kingc9218b12013-04-27 23:31:10 +01001509config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001510 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001511 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001512 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001513 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001514 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001515 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001516
1517choice
Russell King47d84682013-09-10 23:47:55 +01001518 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001519 prompt "Timer frequency"
1520
1521config HZ_100
1522 bool "100 Hz"
1523
1524config HZ_200
1525 bool "200 Hz"
1526
1527config HZ_250
1528 bool "250 Hz"
1529
1530config HZ_300
1531 bool "300 Hz"
1532
1533config HZ_500
1534 bool "500 Hz"
1535
1536config HZ_1000
1537 bool "1000 Hz"
1538
1539endchoice
1540
1541config HZ
1542 int
Russell King47d84682013-09-10 23:47:55 +01001543 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001544 default 100 if HZ_100
1545 default 200 if HZ_200
1546 default 250 if HZ_250
1547 default 300 if HZ_300
1548 default 500 if HZ_500
1549 default 1000
1550
1551config SCHED_HRTICK
1552 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001553
Catalin Marinas16c79652009-07-24 12:33:02 +01001554config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001555 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001556 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001557 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001558 select AEABI
1559 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001560 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001561 help
1562 By enabling this option, the kernel will be compiled in
1563 Thumb-2 mode. A compiler/assembler that understand the unified
1564 ARM-Thumb syntax is needed.
1565
1566 If unsure, say N.
1567
Dave Martin6f685c52011-03-03 11:41:12 +01001568config THUMB2_AVOID_R_ARM_THM_JUMP11
1569 bool "Work around buggy Thumb-2 short branch relocations in gas"
1570 depends on THUMB2_KERNEL && MODULES
1571 default y
1572 help
1573 Various binutils versions can resolve Thumb-2 branches to
1574 locally-defined, preemptible global symbols as short-range "b.n"
1575 branch instructions.
1576
1577 This is a problem, because there's no guarantee the final
1578 destination of the symbol, or any candidate locations for a
1579 trampoline, are within range of the branch. For this reason, the
1580 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1581 relocation in modules at all, and it makes little sense to add
1582 support.
1583
1584 The symptom is that the kernel fails with an "unsupported
1585 relocation" error when loading some modules.
1586
1587 Until fixed tools are available, passing
1588 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1589 code which hits this problem, at the cost of a bit of extra runtime
1590 stack usage in some cases.
1591
1592 The problem is described in more detail at:
1593 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1594
1595 Only Thumb-2 kernels are affected.
1596
1597 Unless you are sure your tools don't have this problem, say Y.
1598
Catalin Marinas0becb082009-07-24 12:32:53 +01001599config ARM_ASM_UNIFIED
1600 bool
1601
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001602config AEABI
1603 bool "Use the ARM EABI to compile the kernel"
1604 help
1605 This option allows for the kernel to be compiled using the latest
1606 ARM ABI (aka EABI). This is only useful if you are using a user
1607 space environment that is also compiled with EABI.
1608
1609 Since there are major incompatibilities between the legacy ABI and
1610 EABI, especially with regard to structure member alignment, this
1611 option also changes the kernel syscall calling convention to
1612 disambiguate both ABIs and allow for backward compatibility support
1613 (selected with CONFIG_OABI_COMPAT).
1614
1615 To use this you need GCC version 4.0.0 or later.
1616
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001617config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001618 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001619 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001620 help
1621 This option preserves the old syscall interface along with the
1622 new (ARM EABI) one. It also provides a compatibility layer to
1623 intercept syscalls that have structure arguments which layout
1624 in memory differs between the legacy ABI and the new ARM EABI
1625 (only for non "thumb" binaries). This option adds a tiny
1626 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001627
1628 The seccomp filter system will not be available when this is
1629 selected, since there is no way yet to sensibly distinguish
1630 between calling conventions during filtering.
1631
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001632 If you know you'll be using only pure EABI user space then you
1633 can say N here. If this option is not selected and you attempt
1634 to execute a legacy ABI binary then the result will be
1635 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001636 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001637
Mel Gormaneb335752009-05-13 17:34:48 +01001638config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001639 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001640
Russell King05944d72006-11-30 20:43:51 +00001641config ARCH_SPARSEMEM_ENABLE
1642 bool
1643
Russell King07a2f732008-10-01 21:39:58 +01001644config ARCH_SPARSEMEM_DEFAULT
1645 def_bool ARCH_SPARSEMEM_ENABLE
1646
Russell King05944d72006-11-30 20:43:51 +00001647config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001648 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001649
Will Deacon7b7bf492011-05-19 13:21:14 +01001650config HAVE_ARCH_PFN_VALID
1651 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1652
Steve Capperb8cd51a2014-10-09 15:29:20 -07001653config HAVE_GENERIC_RCU_GUP
1654 def_bool y
1655 depends on ARM_LPAE
1656
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001657config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001658 bool "High Memory Support"
1659 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001660 help
1661 The address space of ARM processors is only 4 Gigabytes large
1662 and it has to accommodate user address space, kernel address
1663 space as well as some memory mapped IO. That means that, if you
1664 have a large amount of physical memory and/or IO, not all of the
1665 memory can be "permanently mapped" by the kernel. The physical
1666 memory that is not permanently mapped is called "high memory".
1667
1668 Depending on the selected kernel/user memory split, minimum
1669 vmalloc space and actual amount of RAM, you may not need this
1670 option which should result in a slightly faster kernel.
1671
1672 If unsure, say n.
1673
Russell King65cec8e2009-08-17 20:02:06 +01001674config HIGHPTE
1675 bool "Allocate 2nd-level pagetables from highmem"
1676 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001677
Jamie Iles1b8873a2010-02-02 20:25:44 +01001678config HW_PERF_EVENTS
1679 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001680 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001681 default y
1682 help
1683 Enable hardware performance counter support for perf events. If
1684 disabled, perf events will use software events only.
1685
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001686config SYS_SUPPORTS_HUGETLBFS
1687 def_bool y
1688 depends on ARM_LPAE
1689
Catalin Marinas8d962502012-07-25 14:39:26 +01001690config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1691 def_bool y
1692 depends on ARM_LPAE
1693
Steven Capper4bfab202013-07-26 14:58:22 +01001694config ARCH_WANT_GENERAL_HUGETLB
1695 def_bool y
1696
Dave Hansen3f22ab22005-06-23 00:07:43 -07001697source "mm/Kconfig"
1698
Magnus Dammc1b2d972010-07-05 10:00:11 +01001699config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001700 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1701 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001702 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001703 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001704 default "11"
1705 help
1706 The kernel memory allocator divides physically contiguous memory
1707 blocks into "zones", where each zone is a power of two number of
1708 pages. This option selects the largest power of two that the kernel
1709 keeps in the memory allocator. If you need to allocate very large
1710 blocks of physically contiguous memory, then you may need to
1711 increase this value.
1712
1713 This config option is actually maximum order plus one. For example,
1714 a value of 11 means that the largest free memory block is 2^10 pages.
1715
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716config ALIGNMENT_TRAP
1717 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001718 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001720 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001722 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001723 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1724 address divisible by 4. On 32-bit ARM processors, these non-aligned
1725 fetch/store instructions will be emulated in software if you say
1726 here, which has a severe performance impact. This is necessary for
1727 correct operation of some network protocols. With an IP-only
1728 configuration it is safe to say N, otherwise say Y.
1729
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001730config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001731 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1732 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001733 default y if CPU_FEROCEON
1734 help
1735 Implement faster copy_to_user and clear_user methods for CPU
1736 cores where a 8-word STM instruction give significantly higher
1737 memory write throughput than a sequence of individual 32bit stores.
1738
1739 A possible side effect is a slight increase in scheduling latency
1740 between threads sharing the same address space if they invoke
1741 such copy operations with large buffers.
1742
1743 However, if the CPU data cache is using a write-allocate mode,
1744 this option is unlikely to provide any performance gain.
1745
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001746config SECCOMP
1747 bool
1748 prompt "Enable seccomp to safely compute untrusted bytecode"
1749 ---help---
1750 This kernel feature is useful for number crunching applications
1751 that may need to compute untrusted bytecode during their
1752 execution. By using pipes or other transports made available to
1753 the process as file descriptors supporting the read/write
1754 syscalls, it's possible to isolate those applications in
1755 their own address space using seccomp. Once seccomp is
1756 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1757 and the task is only allowed to execute a few safe syscalls
1758 defined by each seccomp mode.
1759
Stefano Stabellini06e62952013-10-15 15:47:14 +00001760config SWIOTLB
1761 def_bool y
1762
1763config IOMMU_HELPER
1764 def_bool SWIOTLB
1765
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001766config XEN_DOM0
1767 def_bool y
1768 depends on XEN
1769
1770config XEN
Julien Grallc2ba1f72014-09-17 14:07:06 -07001771 bool "Xen guest support on ARM"
Ian Campbell85323a92013-03-07 07:17:25 +00001772 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001773 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001774 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001775 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001776 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001777 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001778 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001779 help
1780 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1781
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782endmenu
1783
1784menu "Boot options"
1785
Grant Likely9eb8f672011-04-28 14:27:20 -06001786config USE_OF
1787 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001788 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001789 select OF
1790 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001791 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001792 help
1793 Include support for flattened device tree machine descriptions.
1794
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001795config ATAGS
1796 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1797 default y
1798 help
1799 This is the traditional way of passing data to the kernel at boot
1800 time. If you are solely relying on the flattened device tree (or
1801 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1802 to remove ATAGS support from your kernel binary. If unsure,
1803 leave this to y.
1804
1805config DEPRECATED_PARAM_STRUCT
1806 bool "Provide old way to pass kernel parameters"
1807 depends on ATAGS
1808 help
1809 This was deprecated in 2001 and announced to live on for 5 years.
1810 Some old boot loaders still use this way.
1811
Linus Torvalds1da177e2005-04-16 15:20:36 -07001812# Compressed boot loader in ROM. Yes, we really want to ask about
1813# TEXT and BSS so we preserve their values in the config files.
1814config ZBOOT_ROM_TEXT
1815 hex "Compressed ROM boot loader base address"
1816 default "0"
1817 help
1818 The physical address at which the ROM-able zImage is to be
1819 placed in the target. Platforms which normally make use of
1820 ROM-able zImage formats normally set this to a suitable
1821 value in their defconfig file.
1822
1823 If ZBOOT_ROM is not enabled, this has no effect.
1824
1825config ZBOOT_ROM_BSS
1826 hex "Compressed ROM boot loader BSS address"
1827 default "0"
1828 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001829 The base address of an area of read/write memory in the target
1830 for the ROM-able zImage which must be available while the
1831 decompressor is running. It must be large enough to hold the
1832 entire decompressed kernel plus an additional 128 KiB.
1833 Platforms which normally make use of ROM-able zImage formats
1834 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835
1836 If ZBOOT_ROM is not enabled, this has no effect.
1837
1838config ZBOOT_ROM
1839 bool "Compressed boot loader in ROM/flash"
1840 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001841 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001842 help
1843 Say Y here if you intend to execute your compressed kernel image
1844 (zImage) directly from ROM or flash. If unsure, say N.
1845
Simon Horman090ab3f2011-04-26 06:29:53 +01001846choice
1847 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001848 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001849 default ZBOOT_ROM_NONE
1850 help
1851 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001852 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001853 kernel image to an MMC or SD card and boot the kernel straight
1854 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001855 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001856 rest the kernel image to RAM.
1857
1858config ZBOOT_ROM_NONE
1859 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1860 help
1861 Do not load image from SD or MMC
1862
Simon Hormanf45b1142011-01-11 04:01:08 +01001863config ZBOOT_ROM_MMCIF
1864 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001865 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001866 Load image from MMCIF hardware block.
1867
1868config ZBOOT_ROM_SH_MOBILE_SDHI
1869 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1870 help
1871 Load image from SDHI hardware block
1872
1873endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001874
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001875config ARM_APPENDED_DTB
1876 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001877 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001878 help
1879 With this option, the boot code will look for a device tree binary
1880 (DTB) appended to zImage
1881 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1882
1883 This is meant as a backward compatibility convenience for those
1884 systems with a bootloader that can't be upgraded to accommodate
1885 the documented boot protocol using a device tree.
1886
1887 Beware that there is very little in terms of protection against
1888 this option being confused by leftover garbage in memory that might
1889 look like a DTB header after a reboot if no actual DTB is appended
1890 to zImage. Do not leave this option active in a production kernel
1891 if you don't intend to always append a DTB. Proper passing of the
1892 location into r2 of a bootloader provided DTB is always preferable
1893 to this option.
1894
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001895config ARM_ATAG_DTB_COMPAT
1896 bool "Supplement the appended DTB with traditional ATAG information"
1897 depends on ARM_APPENDED_DTB
1898 help
1899 Some old bootloaders can't be updated to a DTB capable one, yet
1900 they provide ATAGs with memory configuration, the ramdisk address,
1901 the kernel cmdline string, etc. Such information is dynamically
1902 provided by the bootloader and can't always be stored in a static
1903 DTB. To allow a device tree enabled kernel to be used with such
1904 bootloaders, this option allows zImage to extract the information
1905 from the ATAG list and store it at run time into the appended DTB.
1906
Genoud Richardd0f34a112012-06-26 16:37:59 +01001907choice
1908 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1909 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1910
1911config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1912 bool "Use bootloader kernel arguments if available"
1913 help
1914 Uses the command-line options passed by the boot loader instead of
1915 the device tree bootargs property. If the boot loader doesn't provide
1916 any, the device tree bootargs property will be used.
1917
1918config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1919 bool "Extend with bootloader kernel arguments"
1920 help
1921 The command-line arguments provided by the boot loader will be
1922 appended to the the device tree bootargs property.
1923
1924endchoice
1925
Linus Torvalds1da177e2005-04-16 15:20:36 -07001926config CMDLINE
1927 string "Default kernel command string"
1928 default ""
1929 help
1930 On some architectures (EBSA110 and CATS), there is currently no way
1931 for the boot loader to pass arguments to the kernel. For these
1932 architectures, you should supply some command-line options at build
1933 time by entering them here. As a minimum, you should specify the
1934 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1935
Victor Boivie4394c122011-05-04 17:07:55 +01001936choice
1937 prompt "Kernel command line type" if CMDLINE != ""
1938 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001939 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001940
1941config CMDLINE_FROM_BOOTLOADER
1942 bool "Use bootloader kernel arguments if available"
1943 help
1944 Uses the command-line options passed by the boot loader. If
1945 the boot loader doesn't provide any, the default kernel command
1946 string provided in CMDLINE will be used.
1947
1948config CMDLINE_EXTEND
1949 bool "Extend bootloader kernel arguments"
1950 help
1951 The command-line arguments provided by the boot loader will be
1952 appended to the default kernel command string.
1953
Alexander Holler92d20402010-02-16 19:04:53 +01001954config CMDLINE_FORCE
1955 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001956 help
1957 Always use the default kernel command string, even if the boot
1958 loader passes other arguments to the kernel.
1959 This is useful if you cannot or don't want to change the
1960 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001961endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001962
Linus Torvalds1da177e2005-04-16 15:20:36 -07001963config XIP_KERNEL
1964 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001965 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001966 help
1967 Execute-In-Place allows the kernel to run from non-volatile storage
1968 directly addressable by the CPU, such as NOR flash. This saves RAM
1969 space since the text section of the kernel is not loaded from flash
1970 to RAM. Read-write sections, such as the data section and stack,
1971 are still copied to RAM. The XIP kernel is not compressed since
1972 it has to run directly from flash, so it will take more space to
1973 store it. The flash address used to link the kernel object files,
1974 and for storing it, is configuration dependent. Therefore, if you
1975 say Y here, you must know the proper physical address where to
1976 store the kernel image depending on your own flash memory usage.
1977
1978 Also note that the make target becomes "make xipImage" rather than
1979 "make zImage" or "make Image". The final kernel binary to put in
1980 ROM memory will be arch/arm/boot/xipImage.
1981
1982 If unsure, say N.
1983
1984config XIP_PHYS_ADDR
1985 hex "XIP Kernel Physical Location"
1986 depends on XIP_KERNEL
1987 default "0x00080000"
1988 help
1989 This is the physical address in your flash memory the kernel will
1990 be linked for and stored to. This address is dependent on your
1991 own flash usage.
1992
Richard Purdiec587e4a2007-02-06 21:29:00 +01001993config KEXEC
1994 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01001995 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01001996 help
1997 kexec is a system call that implements the ability to shutdown your
1998 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001999 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002000 you can start any kernel with it, not just Linux.
2001
2002 It is an ongoing process to be certain the hardware in a machine
2003 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002004 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002005
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002006config ATAGS_PROC
2007 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002008 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002009 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002010 help
2011 Should the atags used to boot the kernel be exported in an "atags"
2012 file in procfs. Useful with kexec.
2013
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002014config CRASH_DUMP
2015 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002016 help
2017 Generate crash dump after being started by kexec. This should
2018 be normally only set in special crash dump kernels which are
2019 loaded in the main kernel with kexec-tools into a specially
2020 reserved region and then later executed after a crash by
2021 kdump/kexec. The crash dump kernel must be compiled to a
2022 memory address not used by the main kernel
2023
2024 For more details see Documentation/kdump/kdump.txt
2025
Eric Miaoe69edc792010-07-05 15:56:50 +02002026config AUTO_ZRELADDR
2027 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002028 help
2029 ZRELADDR is the physical address where the decompressed kernel
2030 image will be placed. If AUTO_ZRELADDR is selected, the address
2031 will be determined at run-time by masking the current IP with
2032 0xf8000000. This assumes the zImage being placed in the first 128MB
2033 from start of memory.
2034
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035endmenu
2036
Russell Kingac9d7ef2008-08-18 17:26:00 +01002037menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002040
Russell Kingac9d7ef2008-08-18 17:26:00 +01002041source "drivers/cpuidle/Kconfig"
2042
2043endmenu
2044
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045menu "Floating point emulation"
2046
2047comment "At least one emulation must be selected"
2048
2049config FPE_NWFPE
2050 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002051 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052 ---help---
2053 Say Y to include the NWFPE floating point emulator in the kernel.
2054 This is necessary to run most binaries. Linux does not currently
2055 support floating point hardware so you need to say Y here even if
2056 your machine has an FPA or floating point co-processor podule.
2057
2058 You may say N here if you are going to load the Acorn FPEmulator
2059 early in the bootup.
2060
2061config FPE_NWFPE_XP
2062 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002063 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002064 help
2065 Say Y to include 80-bit support in the kernel floating-point
2066 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2067 Note that gcc does not generate 80-bit operations by default,
2068 so in most cases this option only enlarges the size of the
2069 floating point emulator without any good reason.
2070
2071 You almost surely want to say N here.
2072
2073config FPE_FASTFPE
2074 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002075 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002076 ---help---
2077 Say Y here to include the FAST floating point emulator in the kernel.
2078 This is an experimental much faster emulator which now also has full
2079 precision for the mantissa. It does not support any exceptions.
2080 It is very simple, and approximately 3-6 times faster than NWFPE.
2081
2082 It should be sufficient for most programs. It may be not suitable
2083 for scientific calculations, but you have to check this for yourself.
2084 If you do not feel you need a faster FP emulation you should better
2085 choose NWFPE.
2086
2087config VFP
2088 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002089 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090 help
2091 Say Y to include VFP support code in the kernel. This is needed
2092 if your hardware includes a VFP unit.
2093
2094 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2095 release notes and additional status information.
2096
2097 Say N if your target does not have VFP hardware.
2098
Catalin Marinas25ebee02007-09-25 15:22:24 +01002099config VFPv3
2100 bool
2101 depends on VFP
2102 default y if CPU_V7
2103
Catalin Marinasb5872db2008-01-10 19:16:17 +01002104config NEON
2105 bool "Advanced SIMD (NEON) Extension support"
2106 depends on VFPv3 && CPU_V7
2107 help
2108 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2109 Extension.
2110
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002111config KERNEL_MODE_NEON
2112 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002113 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002114 help
2115 Say Y to include support for NEON in kernel mode.
2116
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117endmenu
2118
2119menu "Userspace binary formats"
2120
2121source "fs/Kconfig.binfmt"
2122
2123config ARTHUR
2124 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002125 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126 help
2127 Say Y here to include the kernel code necessary if you want to run
2128 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2129 experimental; if this sounds frightening, say N and sleep in peace.
2130 You can also say M here to compile this support as a module (which
2131 will be called arthur).
2132
2133endmenu
2134
2135menu "Power management options"
2136
Russell Kingeceab4a2005-11-15 11:31:41 +00002137source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002138
Johannes Bergf4cb5702007-12-08 02:14:00 +01002139config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002140 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002141 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002142 def_bool y
2143
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002144config ARM_CPU_SUSPEND
2145 def_bool PM_SLEEP
2146
Sebastian Capella603fb422014-03-25 01:20:29 +01002147config ARCH_HIBERNATION_POSSIBLE
2148 bool
2149 depends on MMU
2150 default y if ARCH_SUSPEND_POSSIBLE
2151
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152endmenu
2153
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002154source "net/Kconfig"
2155
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002156source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157
2158source "fs/Kconfig"
2159
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160source "arch/arm/Kconfig.debug"
2161
2162source "security/Kconfig"
2163
2164source "crypto/Kconfig"
2165
2166source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002167
2168source "arch/arm/kvm/Kconfig"