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Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Salterd7018842013-10-07 22:07:58 -04008 select ARCH_MIGHT_HAVE_PC_PARPORT
Peter Zijlstra4badad32014-06-06 19:53:16 +02009 select ARCH_SUPPORTS_ATOMIC_RMW
Kim Phillips017f1612013-11-06 05:15:24 +010010 select ARCH_USE_BUILTIN_BSWAP
Will Deacon0cbad9c2013-10-09 17:19:22 +010011 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010012 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010013 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010014 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010015 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacondce5c9e2013-12-17 19:50:16 +010016 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
Laura Abbott36d0fd22014-10-09 15:26:42 -070017 select GENERIC_ALLOCATOR
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010018 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010019 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010020 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010021 select GENERIC_IRQ_PROBE
22 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010023 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070024 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010025 select GENERIC_SMP_IDLE_THREAD
26 select GENERIC_STRNCPY_FROM_USER
27 select GENERIC_STRNLEN_USER
Marc Zyngiera71b0922014-08-26 11:03:18 +010028 select HANDLE_DOMAIN_IRQ
Russell Kingb1b3f492012-10-06 17:12:25 +010029 select HARDIRQS_SW_RESEND
AKASHI Takahiro7a017722014-02-25 18:16:24 +090030 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
Rabin Vincent09f05d82012-02-18 17:52:41 +010031 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060032 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010033 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010034 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010035 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010036 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010037 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010038 select HAVE_C_RECORDMCOUNT
39 select HAVE_DEBUG_KMEMLEAK
40 select HAVE_DMA_API_DEBUG
41 select HAVE_DMA_ATTRS
42 select HAVE_DMA_CONTIGUOUS if MMU
43 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010044 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010045 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
46 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
47 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
48 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010049 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
50 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010051 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070053 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010054 select HAVE_KERNEL_LZMA
55 select HAVE_KERNEL_LZO
56 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010057 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080058 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010059 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010060 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010061 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010062 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010063 select HAVE_PERF_REGS
64 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010065 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010066 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070067 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070068 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010069 select IRQ_FORCED_THREADING
Russell King171b3f02013-09-12 21:24:42 +010070 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040071 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010072 select OLD_SIGACTION
73 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010074 select PERF_USE_VMALLOC
75 select RTC_LIB
76 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010077 # Above selects are sorted alphabetically; please add new ones
78 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 help
80 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000081 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000083 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 Europe. There is an ARM Linux project with a web page at
85 <http://www.arm.linux.org.uk/>.
86
Russell King74facff2011-06-02 11:16:22 +010087config ARM_HAS_SG_CHAIN
Laura Abbott308c09f2014-08-08 14:23:25 -070088 select ARCH_HAS_SG_CHAIN
Russell King74facff2011-06-02 11:16:22 +010089 bool
90
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020091config NEED_SG_DMA_LENGTH
92 bool
93
94config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020095 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010096 select ARM_HAS_SG_CHAIN
97 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020098
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090099if ARM_DMA_USE_IOMMU
100
101config ARM_DMA_IOMMU_ALIGNMENT
102 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
103 range 4 9
104 default 8
105 help
106 DMA mapping framework by default aligns all buffers to the smallest
107 PAGE_SIZE order which is greater than or equal to the requested buffer
108 size. This works well for buffers up to a few hundreds kilobytes, but
109 for larger buffers it just a waste of address space. Drivers which has
110 relatively small addressing window (like 64Mib) might run out of
111 virtual space with just a few allocations.
112
113 With this parameter you can specify the maximum PAGE_SIZE order for
114 DMA IOMMU buffers. Larger buffers will be aligned only to this
115 specified order. The order is expressed as a power of two multiplied
116 by the PAGE_SIZE.
117
118endif
119
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100120config MIGHT_HAVE_PCI
121 bool
122
Ralf Baechle75e71532007-02-09 17:08:58 +0000123config SYS_SUPPORTS_APM_EMULATION
124 bool
125
Linus Walleijbc581772009-09-15 17:30:37 +0100126config HAVE_TCM
127 bool
128 select GENERIC_ALLOCATOR
129
Russell Kinge119bff2010-01-10 17:23:29 +0000130config HAVE_PROC_CPU
131 bool
132
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700133config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000134 bool
Al Viro5ea81762007-02-11 15:41:31 +0000135
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136config EISA
137 bool
138 ---help---
139 The Extended Industry Standard Architecture (EISA) bus was
140 developed as an open alternative to the IBM MicroChannel bus.
141
142 The EISA bus provided some of the features of the IBM MicroChannel
143 bus while maintaining backward compatibility with cards made for
144 the older ISA bus. The EISA bus saw limited use between 1988 and
145 1995 when it was made obsolete by the PCI bus.
146
147 Say Y here if you are building a kernel for an EISA-based machine.
148
149 Otherwise, say N.
150
151config SBUS
152 bool
153
Russell Kingf16fb1e2007-04-28 09:59:37 +0100154config STACKTRACE_SUPPORT
155 bool
156 default y
157
Nicolas Pitref76e9152008-04-24 01:31:46 -0400158config HAVE_LATENCYTOP_SUPPORT
159 bool
160 depends on !SMP
161 default y
162
Russell Kingf16fb1e2007-04-28 09:59:37 +0100163config LOCKDEP_SUPPORT
164 bool
165 default y
166
Russell King7ad1bcb2006-08-27 12:07:02 +0100167config TRACE_IRQFLAGS_SUPPORT
168 bool
169 default y
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171config RWSEM_XCHGADD_ALGORITHM
172 bool
Will Deacon8a874112014-05-02 17:06:19 +0100173 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174
David Howellsf0d1b0b2006-12-08 02:37:49 -0800175config ARCH_HAS_ILOG2_U32
176 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800177
178config ARCH_HAS_ILOG2_U64
179 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800180
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100181config ARCH_HAS_BANDGAP
182 bool
183
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800184config GENERIC_HWEIGHT
185 bool
186 default y
187
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188config GENERIC_CALIBRATE_DELAY
189 bool
190 default y
191
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100192config ARCH_MAY_HAVE_PC_FDC
193 bool
194
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800195config ZONE_DMA
196 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800197
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800198config NEED_DMA_MAP_STATE
199 def_bool y
200
David A. Longc7edc9e2014-03-07 11:23:04 -0500201config ARCH_SUPPORTS_UPROBES
202 def_bool y
203
Rob Herring58af4a22012-03-20 14:33:01 -0500204config ARCH_HAS_DMA_SET_COHERENT_MASK
205 bool
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207config GENERIC_ISA_DMA
208 bool
209
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210config FIQ
211 bool
212
Rob Herring13a50452012-02-07 09:28:22 -0600213config NEED_RET_TO_USER
214 bool
215
Al Viro034d2f52005-12-19 16:27:59 -0500216config ARCH_MTD_XIP
217 bool
218
Hyok S. Choic760fc12006-03-27 15:18:50 +0100219config VECTORS_BASE
220 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900221 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100222 default DRAM_BASE if REMAP_VECTORS_TO_RAM
223 default 0x00000000
224 help
Russell King19accfd2013-07-04 11:40:32 +0100225 The base address of exception vectors. This must be two pages
226 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100227
Russell Kingdc21af92011-01-04 19:09:43 +0000228config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100229 bool "Patch physical to virtual translations at runtime" if EMBEDDED
230 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100231 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000232 depends on !ARCH_REALVIEW || !SPARSEMEM
233 help
Russell King111e9a52011-05-12 10:02:42 +0100234 Patch phys-to-virt and virt-to-phys translation functions at
235 boot and module load time according to the position of the
236 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000237
Russell King111e9a52011-05-12 10:02:42 +0100238 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100239 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000240
Russell Kingc1beced2011-08-10 10:23:45 +0100241 Only disable this option if you know that you do not require
242 this feature (eg, building a kernel for a single machine) and
243 you need to shrink the kernel to the minimal size.
244
Rob Herringc334bc12012-03-04 22:03:33 -0600245config NEED_MACH_IO_H
246 bool
247 help
248 Select this when mach/io.h is required to provide special
249 definitions for this platform. The need for mach/io.h should
250 be avoided when possible.
251
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400252config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400253 bool
Russell King111e9a52011-05-12 10:02:42 +0100254 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400255 Select this when mach/memory.h is required to provide special
256 definitions for this platform. The need for mach/memory.h should
257 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400258
259config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100260 hex "Physical address of main memory" if MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100261 depends on !ARM_PATCH_PHYS_VIRT
Nicolas Pitre974c0722011-12-02 23:09:42 +0100262 default DRAM_BASE if !MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100263 default 0x00000000 if ARCH_EBSA110 || \
264 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
265 ARCH_FOOTBRIDGE || \
266 ARCH_INTEGRATOR || \
267 ARCH_IOP13XX || \
268 ARCH_KS8695 || \
269 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
270 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
271 default 0x20000000 if ARCH_S5PV210
272 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
273 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
274 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
275 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
276 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400277 help
278 Please provide the physical address corresponding to the
279 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000280
Simon Glass87e040b2011-08-16 23:44:26 +0100281config GENERIC_BUG
282 def_bool y
283 depends on BUG
284
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285source "init/Kconfig"
286
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700287source "kernel/Kconfig.freezer"
288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289menu "System Type"
290
Hyok S. Choi3c427972009-07-24 12:35:00 +0100291config MMU
292 bool "MMU-based Paged Memory Management Support"
293 default y
294 help
295 Select if you want MMU-based virtualised addressing space
296 support by paged memory management. If unsure, say 'Y'.
297
Russell Kingccf50e22010-03-15 19:03:06 +0000298#
299# The "ARM system type" choice list is ordered alphabetically by option
300# text. Please add new entries in the option alphabetic order.
301#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302choice
303 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100304 default ARCH_VERSATILE if !MMU
305 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
Rob Herring387798b2012-09-06 13:41:12 -0500307config ARCH_MULTIPLATFORM
308 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100309 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600310 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700311 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500312 select ARM_PATCH_PHYS_VIRT
313 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500314 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600315 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600316 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100317 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500318 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600319 select SPARSE_IRQ
320 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600321
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100322config ARCH_INTEGRATOR
323 bool "ARM Ltd. Integrator family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100324 select ARM_AMBA
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100325 select ARM_PATCH_PHYS_VIRT if MMU
panchaxarife989142013-12-02 16:58:51 +0530326 select AUTO_ZRELADDR
Linus Walleija6131632012-06-11 17:33:12 +0200327 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200328 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100329 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100330 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000331 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100332 select MULTI_IRQ_HANDLER
Russell Kingf4b8b312010-01-14 12:48:06 +0000333 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100334 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200335 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100336 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 help
338 Support for ARM's Integrator platform.
339
340config ARCH_REALVIEW
341 bool "ARM Ltd. RealView 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
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200345 select COMMON_CLK
346 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100347 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100348 select GPIO_PL061 if GPIOLIB
349 select ICST
350 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000351 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352 help
353 This enables support for ARM Ltd RealView boards.
354
355config ARCH_VERSATILE
356 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100357 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100359 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100361 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100362 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900363 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000364 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000365 select PLAT_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100366 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100367 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368 help
369 This enables support for ARM Ltd Versatile board.
370
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100371config ARCH_AT91
372 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100373 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100374 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100375 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500376 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800377 select PINCTRL
378 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100379 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100380 This enables support for systems based on Atmel
381 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100382
Russell King93e22562012-10-12 14:20:52 +0100383config ARCH_CLPS711X
384 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400385 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400386 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400387 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100388 select COMMON_CLK
389 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400390 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400391 select MFD_SYSCON
Alexander Shiyane4e3a372014-08-19 16:31:15 +0400392 select SOC_BUS
Russell King93e22562012-10-12 14:20:52 +0100393 help
394 Support for Cirrus Logic 711x/721x/731x based boards.
395
Russell King788c9702009-04-26 14:21:59 +0100396config ARCH_GEMINI
397 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100398 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200399 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100400 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200401 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100402 help
403 Support for the Cortina Systems Gemini family SoCs
404
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405config ARCH_EBSA110
406 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100407 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000408 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100409 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600410 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400411 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700412 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 help
414 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000415 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 Ethernet interface, two PCMCIA sockets, two serial ports and a
417 parallel port.
418
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100419config ARCH_EFM32
420 bool "Energy Micro efm32"
421 depends on !MMU
422 select ARCH_REQUIRE_GPIOLIB
423 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100424 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100425 select CLKSRC_OF
426 select COMMON_CLK
427 select CPU_V7M
428 select GENERIC_CLOCKEVENTS
429 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700430 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100431 select SPARSE_IRQ
432 select USE_OF
433 help
434 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
435 processors.
436
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000437config ARCH_EP93XX
438 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100439 select ARCH_HAS_HOLES_MEMORYMODEL
440 select ARCH_REQUIRE_GPIOLIB
441 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000442 select ARM_AMBA
443 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100444 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100445 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000446 help
447 This enables support for the Cirrus EP93xx series of CPUs.
448
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449config ARCH_FOOTBRIDGE
450 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000453 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200454 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600455 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400456 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000457 help
458 Support for systems based on the DC21285 companion chip
459 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100461config ARCH_NETX
462 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100464 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000465 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100466 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000467 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100468 This enables support for systems based on the Hilscher NetX Soc
469
Russell King3b938be2007-05-12 11:25:44 +0100470config ARCH_IOP13XX
471 bool "IOP13xx-based"
472 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100473 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400474 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600475 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100476 select PCI
477 select PLAT_IOP
478 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000479 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100480 help
481 Support for Intel's IOP13XX (XScale) family of processors.
482
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100483config ARCH_IOP32X
484 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100485 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
Russell Kingf7e68bb2005-05-05 14:49:01 +0100490 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100491 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000492 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100493 Support for Intel's 80219 and IOP32X (XScale) family of
494 processors.
495
496config ARCH_IOP33X
497 bool "IOP33x-based"
498 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100499 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000500 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200501 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600502 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100503 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100504 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100505 help
506 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
Russell King3b938be2007-05-12 11:25:44 +0100508config ARCH_IXP4XX
509 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100510 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500511 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100512 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100513 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100514 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000515 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100516 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100517 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100518 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600519 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200520 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100521 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100522 help
Russell King3b938be2007-05-12 11:25:44 +0100523 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100524
Saeed Bisharaedabd382009-08-06 15:12:43 +0300525config ARCH_DOVE
526 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300527 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100528 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300529 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100530 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100531 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100532 select PINCTRL
533 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200534 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300535 help
536 Support for the Marvell Dove SoC 88AP510
537
Russell King788c9702009-04-26 14:21:59 +0100538config ARCH_MV78XX0
539 bool "Marvell MV78xx0"
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 MV78xx0 series SoCs:
548 MV781x0, MV782x0.
549
550config ARCH_ORION5X
551 bool "Marvell Orion"
552 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700553 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100554 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100555 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100556 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100557 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200558 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100559 help
560 Support for the following Marvell Orion 5x series SoCs:
561 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
562 Orion-2 (5281), Orion-1-90 (6183).
563
564config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500565 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100566 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100567 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100568 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100569 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100570 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800571 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800572 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800573 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800574 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100575 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400576 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100577 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500578 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100579
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100580config ARCH_KS8695
581 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100582 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200583 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100584 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200585 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100586 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100587 help
588 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
589 System-on-Chip devices.
590
Russell King788c9702009-04-26 14:21:59 +0100591config ARCH_W90X900
592 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100593 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100594 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100595 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100596 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100597 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200598 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100599 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
600 At present, the w90x900 has been renamed nuc900, regarding
601 the ARM series product line, you can login the following
602 link address to know more.
603
604 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
605 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400606
Russell King93e22562012-10-12 14:20:52 +0100607config ARCH_LPC32XX
608 bool "NXP LPC32XX"
609 select ARCH_REQUIRE_GPIOLIB
610 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000611 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100612 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100613 select CPU_ARM926T
614 select GENERIC_CLOCKEVENTS
615 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100616 select USE_OF
617 help
618 Support for the NXP LPC32XX family of processors
619
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700621 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100622 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100623 select ARCH_MTD_XIP
624 select ARCH_REQUIRE_GPIOLIB
625 select ARM_CPU_SUSPEND if PM
626 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100627 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100628 select CLKSRC_MMIO
Robert Jarzmik6f6caea2014-07-14 18:52:03 +0200629 select CLKSRC_OF
Eric Miao981d0f32007-07-24 01:22:43 +0100630 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800631 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100632 select HAVE_IDE
633 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800634 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800635 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000636 help
eric miao2c8086a2007-09-11 19:13:17 -0700637 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600639config ARCH_MSM
640 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700641 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700642 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100643 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800644 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800645 Support for Qualcomm MSM/QSD based systems. This runs on the
646 apps processor of the MSM/QSD and depends on a shared memory
647 interface to the modem processor which runs the baseband
648 stack and controls some vital subsystems
649 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800650
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100651config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100652 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100653 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100654 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900655 select CLKDEV_LOOKUP
Magnus Damm0ed82bc2014-08-25 12:45:41 +0900656 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100657 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800658 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800659 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900660 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000661 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000662 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000663 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700664 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200665 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100666 select PM_GENERIC_DOMAINS if PM
Magnus Damm0cdc23d2014-08-25 12:45:50 +0900667 select SH_CLK_CPG
Russell Kingb1b3f492012-10-06 17:12:25 +0100668 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000669 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100670 Support for Renesas ARM SoC platforms using a non-multiplatform
671 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
672 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000673
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674config ARCH_RPC
675 bool "RiscPC"
676 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100677 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100678 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000679 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100680 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100681 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200682 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100683 select HAVE_PATA_PLATFORM
684 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600685 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400686 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700687 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100688 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 help
690 On the Acorn Risc-PC, Linux can support the internal IDE disk and
691 CD-ROM interface, serial and parallel port, and the floppy drive.
692
693config ARCH_SA1100
694 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700696 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100697 select ARCH_SPARSEMEM_ENABLE
698 select CLKDEV_LOOKUP
699 select CLKSRC_MMIO
700 select CPU_FREQ
701 select CPU_SA1100
702 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200703 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100704 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400705 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100706 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000707 help
708 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900710config ARCH_S3C24XX
711 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900712 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100713 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100714 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200715 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800716 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900717 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900718 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900719 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100720 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900721 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600722 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900723 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900725 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
726 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
727 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
728 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900729
Ben Dooksa08ab632008-10-21 14:06:39 +0100730config ARCH_S3C64XX
731 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900732 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200733 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100734 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100735 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100736 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200737 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900738 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900739 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800740 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900741 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900742 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900743 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700745 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100746 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100747 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100748 select S3C_DEV_NAND
749 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900750 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900751 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900752 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100753 help
754 Samsung S3C64XX series based systems
755
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100756config ARCH_DAVINCI
757 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100758 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700759 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100760 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700761 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100762 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100763 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100764 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500765 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530766 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100767 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100768 help
769 Support for TI's DaVinci platform.
770
Tony Lindgrena0694862013-01-11 11:24:20 -0800771config ARCH_OMAP1
772 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600773 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100774 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800775 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100776 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200777 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100778 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100779 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800780 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800781 select HAVE_IDE
782 select IRQ_DOMAIN
783 select NEED_MACH_IO_H if PCCARD
784 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100785 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800786 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800787
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788endchoice
789
Rob Herring387798b2012-09-06 13:41:12 -0500790menu "Multiple platform selection"
791 depends on ARCH_MULTIPLATFORM
792
793comment "CPU Core family selection"
794
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100795config ARCH_MULTI_V4
796 bool "ARMv4 based platforms (FA526)"
797 depends on !ARCH_MULTI_V6_V7
798 select ARCH_MULTI_V4_V5
799 select CPU_FA526
800
Rob Herring387798b2012-09-06 13:41:12 -0500801config ARCH_MULTI_V4T
802 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500803 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200805 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
806 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
807 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500808
809config ARCH_MULTI_V5
810 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500811 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100812 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100813 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200814 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
815 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500816
817config ARCH_MULTI_V4_V5
818 bool
819
820config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800821 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500822 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600823 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500824
825config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800826 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500827 default y
828 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100829 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600830 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500831
832config ARCH_MULTI_V6_V7
833 bool
Rob Herring9352b052014-01-31 15:36:10 -0600834 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500835
836config ARCH_MULTI_CPU_AUTO
837 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
838 select ARCH_MULTI_V5
839
840endmenu
841
Rob Herring05e2a3d2013-12-05 10:04:54 -0600842config ARCH_VIRT
843 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600844 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600845 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600846 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600847 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600848
Russell Kingccf50e22010-03-15 19:03:06 +0000849#
850# This is sorted alphabetically by mach-* pathname. However, plat-*
851# Kconfigs may be included either alphabetically (according to the
852# plat- suffix) or along side the corresponding mach-* source.
853#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200854source "arch/arm/mach-mvebu/Kconfig"
855
Russell King95b8f202010-01-14 11:43:54 +0000856source "arch/arm/mach-at91/Kconfig"
857
Anders Berg1d22924e2014-05-23 11:08:35 +0200858source "arch/arm/mach-axxia/Kconfig"
859
Christian Daudt8ac49e02012-11-19 09:46:10 -0800860source "arch/arm/mach-bcm/Kconfig"
861
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200862source "arch/arm/mach-berlin/Kconfig"
863
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864source "arch/arm/mach-clps711x/Kconfig"
865
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300866source "arch/arm/mach-cns3xxx/Kconfig"
867
Russell King95b8f202010-01-14 11:43:54 +0000868source "arch/arm/mach-davinci/Kconfig"
869
870source "arch/arm/mach-dove/Kconfig"
871
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000872source "arch/arm/mach-ep93xx/Kconfig"
873
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874source "arch/arm/mach-footbridge/Kconfig"
875
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200876source "arch/arm/mach-gemini/Kconfig"
877
Rob Herring387798b2012-09-06 13:41:12 -0500878source "arch/arm/mach-highbank/Kconfig"
879
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800880source "arch/arm/mach-hisi/Kconfig"
881
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882source "arch/arm/mach-integrator/Kconfig"
883
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100884source "arch/arm/mach-iop32x/Kconfig"
885
886source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Dan Williams285f5fa2006-12-07 02:59:39 +0100888source "arch/arm/mach-iop13xx/Kconfig"
889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890source "arch/arm/mach-ixp4xx/Kconfig"
891
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400892source "arch/arm/mach-keystone/Kconfig"
893
Russell King95b8f202010-01-14 11:43:54 +0000894source "arch/arm/mach-ks8695/Kconfig"
895
Carlo Caione3b8f5032014-09-10 22:16:59 +0200896source "arch/arm/mach-meson/Kconfig"
897
Russell King95b8f202010-01-14 11:43:54 +0000898source "arch/arm/mach-msm/Kconfig"
899
Jonas Jensen17723fd32013-12-18 13:58:45 +0100900source "arch/arm/mach-moxart/Kconfig"
901
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200902source "arch/arm/mach-mv78xx0/Kconfig"
903
Shawn Guo3995eb82012-09-13 19:48:07 +0800904source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Matthias Bruggerf682a212014-05-13 01:06:13 +0200906source "arch/arm/mach-mediatek/Kconfig"
907
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800908source "arch/arm/mach-mxs/Kconfig"
909
Russell King95b8f202010-01-14 11:43:54 +0000910source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800911
Russell King95b8f202010-01-14 11:43:54 +0000912source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000913
Daniel Tang9851ca52013-06-11 18:40:17 +1000914source "arch/arm/mach-nspire/Kconfig"
915
Tony Lindgrend48af152005-07-10 19:58:17 +0100916source "arch/arm/plat-omap/Kconfig"
917
918source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919
Tony Lindgren1dbae812005-11-10 14:26:51 +0000920source "arch/arm/mach-omap2/Kconfig"
921
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400922source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400923
Rob Herring387798b2012-09-06 13:41:12 -0500924source "arch/arm/mach-picoxcell/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-pxa/Kconfig"
927source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-mmp/Kconfig"
930
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600931source "arch/arm/mach-qcom/Kconfig"
932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/mach-realview/Kconfig"
934
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200935source "arch/arm/mach-rockchip/Kconfig"
936
Russell King95b8f202010-01-14 11:43:54 +0000937source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300938
Rob Herring387798b2012-09-06 13:41:12 -0500939source "arch/arm/mach-socfpga/Kconfig"
940
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100941source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100942
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100943source "arch/arm/mach-sti/Kconfig"
944
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900945source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Ben Dooks431107e2010-01-26 10:11:04 +0900947source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100948
Kukjin Kim170f4e42010-02-24 16:40:44 +0900949source "arch/arm/mach-s5pv210/Kconfig"
950
Kukjin Kim83014572011-11-06 13:54:56 +0900951source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500952source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900953
Russell King882d01f2010-03-02 23:40:15 +0000954source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Maxime Ripard3b526342012-11-08 12:40:16 +0100956source "arch/arm/mach-sunxi/Kconfig"
957
Barry Song156a0992012-08-23 13:41:58 +0800958source "arch/arm/mach-prima2/Kconfig"
959
Erik Gillingc5f80062010-01-21 16:53:02 -0800960source "arch/arm/mach-tegra/Kconfig"
961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963
Russell King95b8f202010-01-14 11:43:54 +0000964source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965
966source "arch/arm/mach-versatile/Kconfig"
967
Russell Kingceade892010-02-11 21:44:53 +0000968source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000969source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000970
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300971source "arch/arm/mach-vt8500/Kconfig"
972
wanzongshun7ec80dd2008-12-03 03:55:38 +0100973source "arch/arm/mach-w90x900/Kconfig"
974
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600975source "arch/arm/mach-zynq/Kconfig"
976
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977# Definitions to make life easier
978config ARCH_ACORN
979 bool
980
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100981config PLAT_IOP
982 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700983 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100984
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400985config PLAT_ORION
986 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100987 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100988 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100989 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200990 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400991
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200992config PLAT_ORION_LEGACY
993 bool
994 select PLAT_ORION
995
Eric Miaobd5ce432009-01-20 12:06:01 +0800996config PLAT_PXA
997 bool
998
Russell Kingf4b8b312010-01-14 12:48:06 +0000999config PLAT_VERSATILE
1000 bool
1001
Russell Kinge3887712010-01-14 13:30:16 +00001002config ARM_TIMER_SP804
1003 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001004 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001005 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001006
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001007source "arch/arm/firmware/Kconfig"
1008
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009source arch/arm/mm/Kconfig
1010
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001011config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001012 bool "Enable iWMMXt support"
1013 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1014 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001015 help
1016 Enable support for iWMMXt context switching at run time if
1017 running on a CPU that supports it.
1018
eric miao52108642010-12-13 09:42:34 +01001019config MULTI_IRQ_HANDLER
1020 bool
1021 help
1022 Allow each machine to specify it's own IRQ handler at run time.
1023
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001024if !MMU
1025source "arch/arm/Kconfig-nommu"
1026endif
1027
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001028config PJ4B_ERRATA_4742
1029 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1030 depends on CPU_PJ4B && MACH_ARMADA_370
1031 default y
1032 help
1033 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1034 Event (WFE) IDLE states, a specific timing sensitivity exists between
1035 the retiring WFI/WFE instructions and the newly issued subsequent
1036 instructions. This sensitivity can result in a CPU hang scenario.
1037 Workaround:
1038 The software must insert either a Data Synchronization Barrier (DSB)
1039 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1040 instruction
1041
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001042config ARM_ERRATA_326103
1043 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1044 depends on CPU_V6
1045 help
1046 Executing a SWP instruction to read-only memory does not set bit 11
1047 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1048 treat the access as a read, preventing a COW from occurring and
1049 causing the faulting task to livelock.
1050
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001051config ARM_ERRATA_411920
1052 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001053 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001054 help
1055 Invalidation of the Instruction Cache operation can
1056 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1057 It does not affect the MPCore. This option enables the ARM Ltd.
1058 recommended workaround.
1059
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001060config ARM_ERRATA_430973
1061 bool "ARM errata: Stale prediction on replaced interworking branch"
1062 depends on CPU_V7
1063 help
1064 This option enables the workaround for the 430973 Cortex-A8
1065 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1066 interworking branch is replaced with another code sequence at the
1067 same virtual address, whether due to self-modifying code or virtual
1068 to physical address re-mapping, Cortex-A8 does not recover from the
1069 stale interworking branch prediction. This results in Cortex-A8
1070 executing the new code sequence in the incorrect ARM or Thumb state.
1071 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1072 and also flushes the branch target cache at every context switch.
1073 Note that setting specific bits in the ACTLR register may not be
1074 available in non-secure mode.
1075
Catalin Marinas855c5512009-04-30 17:06:15 +01001076config ARM_ERRATA_458693
1077 bool "ARM errata: Processor deadlock when a false hazard is created"
1078 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001079 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001080 help
1081 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1082 erratum. For very specific sequences of memory operations, it is
1083 possible for a hazard condition intended for a cache line to instead
1084 be incorrectly associated with a different cache line. This false
1085 hazard might then cause a processor deadlock. The workaround enables
1086 the L1 caching of the NEON accesses and disables the PLD instruction
1087 in the ACTLR register. Note that setting specific bits in the ACTLR
1088 register may not be available in non-secure mode.
1089
Catalin Marinas0516e462009-04-30 17:06:20 +01001090config ARM_ERRATA_460075
1091 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1092 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001093 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001094 help
1095 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1096 erratum. Any asynchronous access to the L2 cache may encounter a
1097 situation in which recent store transactions to the L2 cache are lost
1098 and overwritten with stale memory contents from external memory. The
1099 workaround disables the write-allocate mode for the L2 cache via the
1100 ACTLR register. Note that setting specific bits in the ACTLR register
1101 may not be available in non-secure mode.
1102
Will Deacon9f050272010-09-14 09:51:43 +01001103config ARM_ERRATA_742230
1104 bool "ARM errata: DMB operation may be faulty"
1105 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001106 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001107 help
1108 This option enables the workaround for the 742230 Cortex-A9
1109 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1110 between two write operations may not ensure the correct visibility
1111 ordering of the two writes. This workaround sets a specific bit in
1112 the diagnostic register of the Cortex-A9 which causes the DMB
1113 instruction to behave as a DSB, ensuring the correct behaviour of
1114 the two writes.
1115
Will Deacona672e992010-09-14 09:53:02 +01001116config ARM_ERRATA_742231
1117 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1118 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001119 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001120 help
1121 This option enables the workaround for the 742231 Cortex-A9
1122 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1123 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1124 accessing some data located in the same cache line, may get corrupted
1125 data due to bad handling of the address hazard when the line gets
1126 replaced from one of the CPUs at the same time as another CPU is
1127 accessing it. This workaround sets specific bits in the diagnostic
1128 register of the Cortex-A9 which reduces the linefill issuing
1129 capabilities of the processor.
1130
Jon Medhurst69155792013-06-07 10:35:35 +01001131config ARM_ERRATA_643719
1132 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1133 depends on CPU_V7 && SMP
1134 help
1135 This option enables the workaround for the 643719 Cortex-A9 (prior to
1136 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1137 register returns zero when it should return one. The workaround
1138 corrects this value, ensuring cache maintenance operations which use
1139 it behave as intended and avoiding data corruption.
1140
Will Deaconcdf357f2010-08-05 11:20:51 +01001141config ARM_ERRATA_720789
1142 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001143 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001144 help
1145 This option enables the workaround for the 720789 Cortex-A9 (prior to
1146 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1147 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1148 As a consequence of this erratum, some TLB entries which should be
1149 invalidated are not, resulting in an incoherency in the system page
1150 tables. The workaround changes the TLB flushing routines to invalidate
1151 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001152
1153config ARM_ERRATA_743622
1154 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1155 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001156 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001157 help
1158 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001159 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001160 optimisation in the Cortex-A9 Store Buffer may lead to data
1161 corruption. This workaround sets a specific bit in the diagnostic
1162 register of the Cortex-A9 which disables the Store Buffer
1163 optimisation, preventing the defect from occurring. This has no
1164 visible impact on the overall performance or power consumption of the
1165 processor.
1166
Will Deacon9a27c272011-02-18 16:36:35 +01001167config ARM_ERRATA_751472
1168 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001169 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001170 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001171 help
1172 This option enables the workaround for the 751472 Cortex-A9 (prior
1173 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1174 completion of a following broadcasted operation if the second
1175 operation is received by a CPU before the ICIALLUIS has completed,
1176 potentially leading to corrupted entries in the cache or TLB.
1177
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001178config ARM_ERRATA_754322
1179 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1180 depends on CPU_V7
1181 help
1182 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1183 r3p*) erratum. A speculative memory access may cause a page table walk
1184 which starts prior to an ASID switch but completes afterwards. This
1185 can populate the micro-TLB with a stale entry which may be hit with
1186 the new ASID. This workaround places two dsb instructions in the mm
1187 switching code so that no page table walks can cross the ASID switch.
1188
Will Deacon5dab26af2011-03-04 12:38:54 +01001189config ARM_ERRATA_754327
1190 bool "ARM errata: no automatic Store Buffer drain"
1191 depends on CPU_V7 && SMP
1192 help
1193 This option enables the workaround for the 754327 Cortex-A9 (prior to
1194 r2p0) erratum. The Store Buffer does not have any automatic draining
1195 mechanism and therefore a livelock may occur if an external agent
1196 continuously polls a memory location waiting to observe an update.
1197 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1198 written polling loops from denying visibility of updates to memory.
1199
Catalin Marinas145e10e2011-08-15 11:04:41 +01001200config ARM_ERRATA_364296
1201 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001202 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001203 help
1204 This options enables the workaround for the 364296 ARM1136
1205 r0p2 erratum (possible cache data corruption with
1206 hit-under-miss enabled). It sets the undocumented bit 31 in
1207 the auxiliary control register and the FI bit in the control
1208 register, thus disabling hit-under-miss without putting the
1209 processor into full low interrupt latency mode. ARM11MPCore
1210 is not affected.
1211
Will Deaconf630c1b2011-09-15 11:45:15 +01001212config ARM_ERRATA_764369
1213 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1214 depends on CPU_V7 && SMP
1215 help
1216 This option enables the workaround for erratum 764369
1217 affecting Cortex-A9 MPCore with two or more processors (all
1218 current revisions). Under certain timing circumstances, a data
1219 cache line maintenance operation by MVA targeting an Inner
1220 Shareable memory region may fail to proceed up to either the
1221 Point of Coherency or to the Point of Unification of the
1222 system. This workaround adds a DSB instruction before the
1223 relevant cache maintenance functions and sets a specific bit
1224 in the diagnostic control register of the SCU.
1225
Simon Horman7253b852012-09-28 02:12:45 +01001226config ARM_ERRATA_775420
1227 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1228 depends on CPU_V7
1229 help
1230 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1231 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1232 operation aborts with MMU exception, it might cause the processor
1233 to deadlock. This workaround puts DSB before executing ISB if
1234 an abort may occur on cache maintenance.
1235
Catalin Marinas93dc6882013-03-26 23:35:04 +01001236config ARM_ERRATA_798181
1237 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1238 depends on CPU_V7 && SMP
1239 help
1240 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1241 adequately shooting down all use of the old entries. This
1242 option enables the Linux kernel workaround for this erratum
1243 which sends an IPI to the CPUs that are running the same ASID
1244 as the one being invalidated.
1245
Will Deacon84b65042013-08-20 17:29:55 +01001246config ARM_ERRATA_773022
1247 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1248 depends on CPU_V7
1249 help
1250 This option enables the workaround for the 773022 Cortex-A15
1251 (up to r0p4) erratum. In certain rare sequences of code, the
1252 loop buffer may deliver incorrect instructions. This
1253 workaround disables the loop buffer to avoid the erratum.
1254
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255endmenu
1256
1257source "arch/arm/common/Kconfig"
1258
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259menu "Bus support"
1260
1261config ARM_AMBA
1262 bool
1263
1264config ISA
1265 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266 help
1267 Find out whether you have ISA slots on your motherboard. ISA is the
1268 name of a bus system, i.e. the way the CPU talks to the other stuff
1269 inside your box. Other bus systems are PCI, EISA, MicroChannel
1270 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1271 newer boards don't support it. If you have ISA, say Y, otherwise N.
1272
Russell King065909b2006-01-04 15:44:16 +00001273# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274config ISA_DMA
1275 bool
Russell King065909b2006-01-04 15:44:16 +00001276 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277
Russell King065909b2006-01-04 15:44:16 +00001278# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001279config ISA_DMA_API
1280 bool
Al Viro5cae8412005-05-04 05:39:22 +01001281
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001283 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001284 help
1285 Find out whether you have a PCI motherboard. PCI is the name of a
1286 bus system, i.e. the way the CPU talks to the other stuff inside
1287 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1288 VESA. If you have PCI, say Y, otherwise N.
1289
Anton Vorontsov52882172010-04-19 13:20:49 +01001290config PCI_DOMAINS
1291 bool
1292 depends on PCI
1293
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001294config PCI_NANOENGINE
1295 bool "BSE nanoEngine PCI support"
1296 depends on SA1100_NANOENGINE
1297 help
1298 Enable PCI on the BSE nanoEngine board.
1299
Matthew Wilcox36e23592007-07-10 10:54:40 -06001300config PCI_SYSCALL
1301 def_bool PCI
1302
Mike Rapoporta0113a92007-11-25 08:55:34 +01001303config PCI_HOST_ITE8152
1304 bool
1305 depends on PCI && MACH_ARMCORE
1306 default y
1307 select DMABOUNCE
1308
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001310source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311
1312source "drivers/pcmcia/Kconfig"
1313
1314endmenu
1315
1316menu "Kernel Features"
1317
Dave Martin3b556582011-12-07 15:38:04 +00001318config HAVE_SMP
1319 bool
1320 help
1321 This option should be selected by machines which have an SMP-
1322 capable CPU.
1323
1324 The only effect of this option is to make the SMP-related
1325 options available to the user for configuration.
1326
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001328 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001329 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001330 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001331 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001332 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 help
1334 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001335 a system with only one CPU, say N. If you have a system with more
1336 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337
Robert Graffham4a474152014-01-23 15:55:29 -08001338 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001340 you say Y here, the kernel will run on many, but not all,
1341 uniprocessor machines. On a uniprocessor machine, the kernel
1342 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343
Paul Bolle395cf962011-08-15 02:02:26 +02001344 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001346 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347
1348 If you don't know what to do here, say N.
1349
Russell Kingf00ec482010-09-04 10:47:48 +01001350config SMP_ON_UP
1351 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001352 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001353 default y
1354 help
1355 SMP kernels contain instructions which fail on non-SMP processors.
1356 Enabling this option allows the kernel to modify itself to make
1357 these instructions safe. Disabling it allows about 1K of space
1358 savings.
1359
1360 If you don't know what to do here, say Y.
1361
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001362config ARM_CPU_TOPOLOGY
1363 bool "Support cpu topology definition"
1364 depends on SMP && CPU_V7
1365 default y
1366 help
1367 Support ARM cpu topology definition. The MPIDR register defines
1368 affinity between processors which is then used to describe the cpu
1369 topology of an ARM System.
1370
1371config SCHED_MC
1372 bool "Multi-core scheduler support"
1373 depends on ARM_CPU_TOPOLOGY
1374 help
1375 Multi-core scheduler support improves the CPU scheduler's decision
1376 making when dealing with multi-core CPU chips at a cost of slightly
1377 increased overhead in some places. If unsure say N here.
1378
1379config SCHED_SMT
1380 bool "SMT scheduler support"
1381 depends on ARM_CPU_TOPOLOGY
1382 help
1383 Improves the CPU scheduler's decision making when dealing with
1384 MultiThreading at a cost of slightly increased overhead in some
1385 places. If unsure say N here.
1386
Russell Kinga8cbcd92009-05-16 11:51:14 +01001387config HAVE_ARM_SCU
1388 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001389 help
1390 This option enables support for the ARM system coherency unit
1391
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001392config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001393 bool "Architected timer support"
1394 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001395 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001396 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001397 help
1398 This option enables support for the ARM architected timer
1399
Russell Kingf32f4ce2009-05-16 12:14:21 +01001400config HAVE_ARM_TWD
1401 bool
1402 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001403 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001404 help
1405 This options enables support for the ARM timer and watchdog unit
1406
Nicolas Pitree8db2882012-04-12 02:45:22 -04001407config MCPM
1408 bool "Multi-Cluster Power Management"
1409 depends on CPU_V7 && SMP
1410 help
1411 This option provides the common power management infrastructure
1412 for (multi-)cluster based systems, such as big.LITTLE based
1413 systems.
1414
Haojian Zhuangebf4a5c2014-04-15 14:52:00 +08001415config MCPM_QUAD_CLUSTER
1416 bool
1417 depends on MCPM
1418 help
1419 To avoid wasting resources unnecessarily, MCPM only supports up
1420 to 2 clusters by default.
1421 Platforms with 3 or 4 clusters that use MCPM must select this
1422 option to allow the additional clusters to be managed.
1423
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001424config BIG_LITTLE
1425 bool "big.LITTLE support (Experimental)"
1426 depends on CPU_V7 && SMP
1427 select MCPM
1428 help
1429 This option enables support selections for the big.LITTLE
1430 system architecture.
1431
1432config BL_SWITCHER
1433 bool "big.LITTLE switcher support"
1434 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001435 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001436 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001437 help
1438 The big.LITTLE "switcher" provides the core functionality to
1439 transparently handle transition between a cluster of A15's
1440 and a cluster of A7's in a big.LITTLE system.
1441
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001442config BL_SWITCHER_DUMMY_IF
1443 tristate "Simple big.LITTLE switcher user interface"
1444 depends on BL_SWITCHER && DEBUG_KERNEL
1445 help
1446 This is a simple and dummy char dev interface to control
1447 the big.LITTLE switcher core code. It is meant for
1448 debugging purposes only.
1449
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001450choice
1451 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001452 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001453 default VMSPLIT_3G
1454 help
1455 Select the desired split between kernel and user memory.
1456
1457 If you are not absolutely sure what you are doing, leave this
1458 option alone!
1459
1460 config VMSPLIT_3G
1461 bool "3G/1G user/kernel split"
1462 config VMSPLIT_2G
1463 bool "2G/2G user/kernel split"
1464 config VMSPLIT_1G
1465 bool "1G/3G user/kernel split"
1466endchoice
1467
1468config PAGE_OFFSET
1469 hex
Russell King006fa252014-02-26 19:40:46 +00001470 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001471 default 0x40000000 if VMSPLIT_1G
1472 default 0x80000000 if VMSPLIT_2G
1473 default 0xC0000000
1474
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475config NR_CPUS
1476 int "Maximum number of CPUs (2-32)"
1477 range 2 32
1478 depends on SMP
1479 default "4"
1480
Russell Kinga054a812005-11-02 22:24:33 +00001481config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001482 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001483 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001484 help
1485 Say Y here to experiment with turning CPUs off and on. CPUs
1486 can be controlled through /sys/devices/system/cpu.
1487
Will Deacon2bdd4242012-12-12 19:20:52 +00001488config ARM_PSCI
1489 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1490 depends on CPU_V7
1491 help
1492 Say Y here if you want Linux to communicate with system firmware
1493 implementing the PSCI specification for CPU-centric power
1494 management operations described in ARM document number ARM DEN
1495 0022A ("Power State Coordination Interface System Software on
1496 ARM processors").
1497
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001498# The GPIO number here must be sorted by descending number. In case of
1499# a multiplatform kernel, we just want the highest value required by the
1500# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001501config ARCH_NR_GPIO
1502 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001503 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tomasz Figaaa425872014-07-03 13:17:12 +02001504 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1505 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001506 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001507 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001508 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001509 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001510 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001511 default 0
1512 help
1513 Maximum number of GPIOs in the system.
1514
1515 If unsure, leave the default value.
1516
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001517source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001518
Russell Kingc9218b12013-04-27 23:31:10 +01001519config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001520 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001521 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001522 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001523 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001524 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001525 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001526
1527choice
Russell King47d84682013-09-10 23:47:55 +01001528 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001529 prompt "Timer frequency"
1530
1531config HZ_100
1532 bool "100 Hz"
1533
1534config HZ_200
1535 bool "200 Hz"
1536
1537config HZ_250
1538 bool "250 Hz"
1539
1540config HZ_300
1541 bool "300 Hz"
1542
1543config HZ_500
1544 bool "500 Hz"
1545
1546config HZ_1000
1547 bool "1000 Hz"
1548
1549endchoice
1550
1551config HZ
1552 int
Russell King47d84682013-09-10 23:47:55 +01001553 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001554 default 100 if HZ_100
1555 default 200 if HZ_200
1556 default 250 if HZ_250
1557 default 300 if HZ_300
1558 default 500 if HZ_500
1559 default 1000
1560
1561config SCHED_HRTICK
1562 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001563
Catalin Marinas16c79652009-07-24 12:33:02 +01001564config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001565 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001566 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001567 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001568 select AEABI
1569 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001570 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001571 help
1572 By enabling this option, the kernel will be compiled in
1573 Thumb-2 mode. A compiler/assembler that understand the unified
1574 ARM-Thumb syntax is needed.
1575
1576 If unsure, say N.
1577
Dave Martin6f685c52011-03-03 11:41:12 +01001578config THUMB2_AVOID_R_ARM_THM_JUMP11
1579 bool "Work around buggy Thumb-2 short branch relocations in gas"
1580 depends on THUMB2_KERNEL && MODULES
1581 default y
1582 help
1583 Various binutils versions can resolve Thumb-2 branches to
1584 locally-defined, preemptible global symbols as short-range "b.n"
1585 branch instructions.
1586
1587 This is a problem, because there's no guarantee the final
1588 destination of the symbol, or any candidate locations for a
1589 trampoline, are within range of the branch. For this reason, the
1590 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1591 relocation in modules at all, and it makes little sense to add
1592 support.
1593
1594 The symptom is that the kernel fails with an "unsupported
1595 relocation" error when loading some modules.
1596
1597 Until fixed tools are available, passing
1598 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1599 code which hits this problem, at the cost of a bit of extra runtime
1600 stack usage in some cases.
1601
1602 The problem is described in more detail at:
1603 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1604
1605 Only Thumb-2 kernels are affected.
1606
1607 Unless you are sure your tools don't have this problem, say Y.
1608
Catalin Marinas0becb082009-07-24 12:32:53 +01001609config ARM_ASM_UNIFIED
1610 bool
1611
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001612config AEABI
1613 bool "Use the ARM EABI to compile the kernel"
1614 help
1615 This option allows for the kernel to be compiled using the latest
1616 ARM ABI (aka EABI). This is only useful if you are using a user
1617 space environment that is also compiled with EABI.
1618
1619 Since there are major incompatibilities between the legacy ABI and
1620 EABI, especially with regard to structure member alignment, this
1621 option also changes the kernel syscall calling convention to
1622 disambiguate both ABIs and allow for backward compatibility support
1623 (selected with CONFIG_OABI_COMPAT).
1624
1625 To use this you need GCC version 4.0.0 or later.
1626
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001627config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001628 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001629 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001630 help
1631 This option preserves the old syscall interface along with the
1632 new (ARM EABI) one. It also provides a compatibility layer to
1633 intercept syscalls that have structure arguments which layout
1634 in memory differs between the legacy ABI and the new ARM EABI
1635 (only for non "thumb" binaries). This option adds a tiny
1636 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001637
1638 The seccomp filter system will not be available when this is
1639 selected, since there is no way yet to sensibly distinguish
1640 between calling conventions during filtering.
1641
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001642 If you know you'll be using only pure EABI user space then you
1643 can say N here. If this option is not selected and you attempt
1644 to execute a legacy ABI binary then the result will be
1645 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001646 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001647
Mel Gormaneb335752009-05-13 17:34:48 +01001648config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001649 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001650
Russell King05944d72006-11-30 20:43:51 +00001651config ARCH_SPARSEMEM_ENABLE
1652 bool
1653
Russell King07a2f732008-10-01 21:39:58 +01001654config ARCH_SPARSEMEM_DEFAULT
1655 def_bool ARCH_SPARSEMEM_ENABLE
1656
Russell King05944d72006-11-30 20:43:51 +00001657config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001658 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001659
Will Deacon7b7bf492011-05-19 13:21:14 +01001660config HAVE_ARCH_PFN_VALID
1661 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1662
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001663config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001664 bool "High Memory Support"
1665 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001666 help
1667 The address space of ARM processors is only 4 Gigabytes large
1668 and it has to accommodate user address space, kernel address
1669 space as well as some memory mapped IO. That means that, if you
1670 have a large amount of physical memory and/or IO, not all of the
1671 memory can be "permanently mapped" by the kernel. The physical
1672 memory that is not permanently mapped is called "high memory".
1673
1674 Depending on the selected kernel/user memory split, minimum
1675 vmalloc space and actual amount of RAM, you may not need this
1676 option which should result in a slightly faster kernel.
1677
1678 If unsure, say n.
1679
Russell King65cec8e2009-08-17 20:02:06 +01001680config HIGHPTE
1681 bool "Allocate 2nd-level pagetables from highmem"
1682 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001683
Jamie Iles1b8873a2010-02-02 20:25:44 +01001684config HW_PERF_EVENTS
1685 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001686 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001687 default y
1688 help
1689 Enable hardware performance counter support for perf events. If
1690 disabled, perf events will use software events only.
1691
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001692config SYS_SUPPORTS_HUGETLBFS
1693 def_bool y
1694 depends on ARM_LPAE
1695
Catalin Marinas8d962502012-07-25 14:39:26 +01001696config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1697 def_bool y
1698 depends on ARM_LPAE
1699
Steven Capper4bfab202013-07-26 14:58:22 +01001700config ARCH_WANT_GENERAL_HUGETLB
1701 def_bool y
1702
Dave Hansen3f22ab22005-06-23 00:07:43 -07001703source "mm/Kconfig"
1704
Magnus Dammc1b2d972010-07-05 10:00:11 +01001705config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001706 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1707 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001708 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001709 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001710 default "11"
1711 help
1712 The kernel memory allocator divides physically contiguous memory
1713 blocks into "zones", where each zone is a power of two number of
1714 pages. This option selects the largest power of two that the kernel
1715 keeps in the memory allocator. If you need to allocate very large
1716 blocks of physically contiguous memory, then you may need to
1717 increase this value.
1718
1719 This config option is actually maximum order plus one. For example,
1720 a value of 11 means that the largest free memory block is 2^10 pages.
1721
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722config ALIGNMENT_TRAP
1723 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001724 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001725 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001726 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001728 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1730 address divisible by 4. On 32-bit ARM processors, these non-aligned
1731 fetch/store instructions will be emulated in software if you say
1732 here, which has a severe performance impact. This is necessary for
1733 correct operation of some network protocols. With an IP-only
1734 configuration it is safe to say N, otherwise say Y.
1735
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001736config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001737 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1738 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001739 default y if CPU_FEROCEON
1740 help
1741 Implement faster copy_to_user and clear_user methods for CPU
1742 cores where a 8-word STM instruction give significantly higher
1743 memory write throughput than a sequence of individual 32bit stores.
1744
1745 A possible side effect is a slight increase in scheduling latency
1746 between threads sharing the same address space if they invoke
1747 such copy operations with large buffers.
1748
1749 However, if the CPU data cache is using a write-allocate mode,
1750 this option is unlikely to provide any performance gain.
1751
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001752config SECCOMP
1753 bool
1754 prompt "Enable seccomp to safely compute untrusted bytecode"
1755 ---help---
1756 This kernel feature is useful for number crunching applications
1757 that may need to compute untrusted bytecode during their
1758 execution. By using pipes or other transports made available to
1759 the process as file descriptors supporting the read/write
1760 syscalls, it's possible to isolate those applications in
1761 their own address space using seccomp. Once seccomp is
1762 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1763 and the task is only allowed to execute a few safe syscalls
1764 defined by each seccomp mode.
1765
Stefano Stabellini06e62952013-10-15 15:47:14 +00001766config SWIOTLB
1767 def_bool y
1768
1769config IOMMU_HELPER
1770 def_bool SWIOTLB
1771
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001772config XEN_DOM0
1773 def_bool y
1774 depends on XEN
1775
1776config XEN
1777 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001778 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001779 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001780 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001781 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001782 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001783 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001784 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001785 help
1786 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1787
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788endmenu
1789
1790menu "Boot options"
1791
Grant Likely9eb8f672011-04-28 14:27:20 -06001792config USE_OF
1793 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001794 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001795 select OF
1796 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001797 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001798 help
1799 Include support for flattened device tree machine descriptions.
1800
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001801config ATAGS
1802 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1803 default y
1804 help
1805 This is the traditional way of passing data to the kernel at boot
1806 time. If you are solely relying on the flattened device tree (or
1807 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1808 to remove ATAGS support from your kernel binary. If unsure,
1809 leave this to y.
1810
1811config DEPRECATED_PARAM_STRUCT
1812 bool "Provide old way to pass kernel parameters"
1813 depends on ATAGS
1814 help
1815 This was deprecated in 2001 and announced to live on for 5 years.
1816 Some old boot loaders still use this way.
1817
Linus Torvalds1da177e2005-04-16 15:20:36 -07001818# Compressed boot loader in ROM. Yes, we really want to ask about
1819# TEXT and BSS so we preserve their values in the config files.
1820config ZBOOT_ROM_TEXT
1821 hex "Compressed ROM boot loader base address"
1822 default "0"
1823 help
1824 The physical address at which the ROM-able zImage is to be
1825 placed in the target. Platforms which normally make use of
1826 ROM-able zImage formats normally set this to a suitable
1827 value in their defconfig file.
1828
1829 If ZBOOT_ROM is not enabled, this has no effect.
1830
1831config ZBOOT_ROM_BSS
1832 hex "Compressed ROM boot loader BSS address"
1833 default "0"
1834 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001835 The base address of an area of read/write memory in the target
1836 for the ROM-able zImage which must be available while the
1837 decompressor is running. It must be large enough to hold the
1838 entire decompressed kernel plus an additional 128 KiB.
1839 Platforms which normally make use of ROM-able zImage formats
1840 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001841
1842 If ZBOOT_ROM is not enabled, this has no effect.
1843
1844config ZBOOT_ROM
1845 bool "Compressed boot loader in ROM/flash"
1846 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001847 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001848 help
1849 Say Y here if you intend to execute your compressed kernel image
1850 (zImage) directly from ROM or flash. If unsure, say N.
1851
Simon Horman090ab3f2011-04-26 06:29:53 +01001852choice
1853 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001854 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001855 default ZBOOT_ROM_NONE
1856 help
1857 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001858 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001859 kernel image to an MMC or SD card and boot the kernel straight
1860 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001861 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001862 rest the kernel image to RAM.
1863
1864config ZBOOT_ROM_NONE
1865 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1866 help
1867 Do not load image from SD or MMC
1868
Simon Hormanf45b1142011-01-11 04:01:08 +01001869config ZBOOT_ROM_MMCIF
1870 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001871 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001872 Load image from MMCIF hardware block.
1873
1874config ZBOOT_ROM_SH_MOBILE_SDHI
1875 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1876 help
1877 Load image from SDHI hardware block
1878
1879endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001880
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001881config ARM_APPENDED_DTB
1882 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001883 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001884 help
1885 With this option, the boot code will look for a device tree binary
1886 (DTB) appended to zImage
1887 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1888
1889 This is meant as a backward compatibility convenience for those
1890 systems with a bootloader that can't be upgraded to accommodate
1891 the documented boot protocol using a device tree.
1892
1893 Beware that there is very little in terms of protection against
1894 this option being confused by leftover garbage in memory that might
1895 look like a DTB header after a reboot if no actual DTB is appended
1896 to zImage. Do not leave this option active in a production kernel
1897 if you don't intend to always append a DTB. Proper passing of the
1898 location into r2 of a bootloader provided DTB is always preferable
1899 to this option.
1900
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001901config ARM_ATAG_DTB_COMPAT
1902 bool "Supplement the appended DTB with traditional ATAG information"
1903 depends on ARM_APPENDED_DTB
1904 help
1905 Some old bootloaders can't be updated to a DTB capable one, yet
1906 they provide ATAGs with memory configuration, the ramdisk address,
1907 the kernel cmdline string, etc. Such information is dynamically
1908 provided by the bootloader and can't always be stored in a static
1909 DTB. To allow a device tree enabled kernel to be used with such
1910 bootloaders, this option allows zImage to extract the information
1911 from the ATAG list and store it at run time into the appended DTB.
1912
Genoud Richardd0f34a112012-06-26 16:37:59 +01001913choice
1914 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1915 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1916
1917config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1918 bool "Use bootloader kernel arguments if available"
1919 help
1920 Uses the command-line options passed by the boot loader instead of
1921 the device tree bootargs property. If the boot loader doesn't provide
1922 any, the device tree bootargs property will be used.
1923
1924config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1925 bool "Extend with bootloader kernel arguments"
1926 help
1927 The command-line arguments provided by the boot loader will be
1928 appended to the the device tree bootargs property.
1929
1930endchoice
1931
Linus Torvalds1da177e2005-04-16 15:20:36 -07001932config CMDLINE
1933 string "Default kernel command string"
1934 default ""
1935 help
1936 On some architectures (EBSA110 and CATS), there is currently no way
1937 for the boot loader to pass arguments to the kernel. For these
1938 architectures, you should supply some command-line options at build
1939 time by entering them here. As a minimum, you should specify the
1940 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1941
Victor Boivie4394c122011-05-04 17:07:55 +01001942choice
1943 prompt "Kernel command line type" if CMDLINE != ""
1944 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001945 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001946
1947config CMDLINE_FROM_BOOTLOADER
1948 bool "Use bootloader kernel arguments if available"
1949 help
1950 Uses the command-line options passed by the boot loader. If
1951 the boot loader doesn't provide any, the default kernel command
1952 string provided in CMDLINE will be used.
1953
1954config CMDLINE_EXTEND
1955 bool "Extend bootloader kernel arguments"
1956 help
1957 The command-line arguments provided by the boot loader will be
1958 appended to the default kernel command string.
1959
Alexander Holler92d20402010-02-16 19:04:53 +01001960config CMDLINE_FORCE
1961 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001962 help
1963 Always use the default kernel command string, even if the boot
1964 loader passes other arguments to the kernel.
1965 This is useful if you cannot or don't want to change the
1966 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001967endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001968
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969config XIP_KERNEL
1970 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001971 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001972 help
1973 Execute-In-Place allows the kernel to run from non-volatile storage
1974 directly addressable by the CPU, such as NOR flash. This saves RAM
1975 space since the text section of the kernel is not loaded from flash
1976 to RAM. Read-write sections, such as the data section and stack,
1977 are still copied to RAM. The XIP kernel is not compressed since
1978 it has to run directly from flash, so it will take more space to
1979 store it. The flash address used to link the kernel object files,
1980 and for storing it, is configuration dependent. Therefore, if you
1981 say Y here, you must know the proper physical address where to
1982 store the kernel image depending on your own flash memory usage.
1983
1984 Also note that the make target becomes "make xipImage" rather than
1985 "make zImage" or "make Image". The final kernel binary to put in
1986 ROM memory will be arch/arm/boot/xipImage.
1987
1988 If unsure, say N.
1989
1990config XIP_PHYS_ADDR
1991 hex "XIP Kernel Physical Location"
1992 depends on XIP_KERNEL
1993 default "0x00080000"
1994 help
1995 This is the physical address in your flash memory the kernel will
1996 be linked for and stored to. This address is dependent on your
1997 own flash usage.
1998
Richard Purdiec587e4a2007-02-06 21:29:00 +01001999config KEXEC
2000 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002001 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002002 help
2003 kexec is a system call that implements the ability to shutdown your
2004 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002005 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002006 you can start any kernel with it, not just Linux.
2007
2008 It is an ongoing process to be certain the hardware in a machine
2009 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002010 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002011
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002012config ATAGS_PROC
2013 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002014 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002015 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002016 help
2017 Should the atags used to boot the kernel be exported in an "atags"
2018 file in procfs. Useful with kexec.
2019
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002020config CRASH_DUMP
2021 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002022 help
2023 Generate crash dump after being started by kexec. This should
2024 be normally only set in special crash dump kernels which are
2025 loaded in the main kernel with kexec-tools into a specially
2026 reserved region and then later executed after a crash by
2027 kdump/kexec. The crash dump kernel must be compiled to a
2028 memory address not used by the main kernel
2029
2030 For more details see Documentation/kdump/kdump.txt
2031
Eric Miaoe69edc792010-07-05 15:56:50 +02002032config AUTO_ZRELADDR
2033 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002034 help
2035 ZRELADDR is the physical address where the decompressed kernel
2036 image will be placed. If AUTO_ZRELADDR is selected, the address
2037 will be determined at run-time by masking the current IP with
2038 0xf8000000. This assumes the zImage being placed in the first 128MB
2039 from start of memory.
2040
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041endmenu
2042
Russell Kingac9d7ef2008-08-18 17:26:00 +01002043menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046
Russell Kingac9d7ef2008-08-18 17:26:00 +01002047source "drivers/cpuidle/Kconfig"
2048
2049endmenu
2050
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051menu "Floating point emulation"
2052
2053comment "At least one emulation must be selected"
2054
2055config FPE_NWFPE
2056 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002057 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002058 ---help---
2059 Say Y to include the NWFPE floating point emulator in the kernel.
2060 This is necessary to run most binaries. Linux does not currently
2061 support floating point hardware so you need to say Y here even if
2062 your machine has an FPA or floating point co-processor podule.
2063
2064 You may say N here if you are going to load the Acorn FPEmulator
2065 early in the bootup.
2066
2067config FPE_NWFPE_XP
2068 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002069 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070 help
2071 Say Y to include 80-bit support in the kernel floating-point
2072 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2073 Note that gcc does not generate 80-bit operations by default,
2074 so in most cases this option only enlarges the size of the
2075 floating point emulator without any good reason.
2076
2077 You almost surely want to say N here.
2078
2079config FPE_FASTFPE
2080 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002081 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082 ---help---
2083 Say Y here to include the FAST floating point emulator in the kernel.
2084 This is an experimental much faster emulator which now also has full
2085 precision for the mantissa. It does not support any exceptions.
2086 It is very simple, and approximately 3-6 times faster than NWFPE.
2087
2088 It should be sufficient for most programs. It may be not suitable
2089 for scientific calculations, but you have to check this for yourself.
2090 If you do not feel you need a faster FP emulation you should better
2091 choose NWFPE.
2092
2093config VFP
2094 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002095 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002096 help
2097 Say Y to include VFP support code in the kernel. This is needed
2098 if your hardware includes a VFP unit.
2099
2100 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2101 release notes and additional status information.
2102
2103 Say N if your target does not have VFP hardware.
2104
Catalin Marinas25ebee02007-09-25 15:22:24 +01002105config VFPv3
2106 bool
2107 depends on VFP
2108 default y if CPU_V7
2109
Catalin Marinasb5872db2008-01-10 19:16:17 +01002110config NEON
2111 bool "Advanced SIMD (NEON) Extension support"
2112 depends on VFPv3 && CPU_V7
2113 help
2114 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2115 Extension.
2116
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002117config KERNEL_MODE_NEON
2118 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002119 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002120 help
2121 Say Y to include support for NEON in kernel mode.
2122
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123endmenu
2124
2125menu "Userspace binary formats"
2126
2127source "fs/Kconfig.binfmt"
2128
2129config ARTHUR
2130 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002131 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132 help
2133 Say Y here to include the kernel code necessary if you want to run
2134 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2135 experimental; if this sounds frightening, say N and sleep in peace.
2136 You can also say M here to compile this support as a module (which
2137 will be called arthur).
2138
2139endmenu
2140
2141menu "Power management options"
2142
Russell Kingeceab4a2005-11-15 11:31:41 +00002143source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144
Johannes Bergf4cb5702007-12-08 02:14:00 +01002145config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002146 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002147 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002148 def_bool y
2149
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002150config ARM_CPU_SUSPEND
2151 def_bool PM_SLEEP
2152
Sebastian Capella603fb422014-03-25 01:20:29 +01002153config ARCH_HIBERNATION_POSSIBLE
2154 bool
2155 depends on MMU
2156 default y if ARCH_SUSPEND_POSSIBLE
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158endmenu
2159
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002160source "net/Kconfig"
2161
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002162source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163
2164source "fs/Kconfig"
2165
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166source "arch/arm/Kconfig.debug"
2167
2168source "security/Kconfig"
2169
2170source "crypto/Kconfig"
2171
2172source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002173
2174source "arch/arm/kvm/Kconfig"