blob: e98261cb05bdb709c957ef3e77421ec50d111253 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +01008 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +01009 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010010 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010011 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010012 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010013 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010014 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010015 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_IRQ_PROBE
17 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010018 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070019 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010020 select GENERIC_SMP_IDLE_THREAD
21 select GENERIC_STRNCPY_FROM_USER
22 select GENERIC_STRNLEN_USER
23 select HARDIRQS_SW_RESEND
Rabin Vincent09f05d82012-02-18 17:52:41 +010024 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060025 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010026 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010027 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010028 select HAVE_BPF_JIT
Russell King171b3f02013-09-12 21:24:42 +010029 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010030 select HAVE_C_RECORDMCOUNT
31 select HAVE_DEBUG_KMEMLEAK
32 select HAVE_DMA_API_DEBUG
33 select HAVE_DMA_ATTRS
34 select HAVE_DMA_CONTIGUOUS if MMU
35 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
36 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
37 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
38 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
39 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010040 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
41 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010042 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010043 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070044 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010045 select HAVE_KERNEL_LZMA
46 select HAVE_KERNEL_LZO
47 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010048 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080049 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010051 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010053 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010054 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070056 select HAVE_UID16
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010057 select IRQ_FORCED_THREADING
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000058 select KTIME_SCALAR
Russell King171b3f02013-09-12 21:24:42 +010059 select MODULES_USE_ELF_REL
60 select OLD_SIGACTION
61 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010062 select PERF_USE_VMALLOC
63 select RTC_LIB
64 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010065 # Above selects are sorted alphabetically; please add new ones
66 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 help
68 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000069 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000071 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 Europe. There is an ARM Linux project with a web page at
73 <http://www.arm.linux.org.uk/>.
74
Russell King74facff2011-06-02 11:16:22 +010075config ARM_HAS_SG_CHAIN
76 bool
77
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020078config NEED_SG_DMA_LENGTH
79 bool
80
81config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020082 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010083 select ARM_HAS_SG_CHAIN
84 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020085
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090086if ARM_DMA_USE_IOMMU
87
88config ARM_DMA_IOMMU_ALIGNMENT
89 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
90 range 4 9
91 default 8
92 help
93 DMA mapping framework by default aligns all buffers to the smallest
94 PAGE_SIZE order which is greater than or equal to the requested buffer
95 size. This works well for buffers up to a few hundreds kilobytes, but
96 for larger buffers it just a waste of address space. Drivers which has
97 relatively small addressing window (like 64Mib) might run out of
98 virtual space with just a few allocations.
99
100 With this parameter you can specify the maximum PAGE_SIZE order for
101 DMA IOMMU buffers. Larger buffers will be aligned only to this
102 specified order. The order is expressed as a power of two multiplied
103 by the PAGE_SIZE.
104
105endif
106
Russell King1a189b92008-04-13 21:41:55 +0100107config HAVE_PWM
108 bool
109
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100110config MIGHT_HAVE_PCI
111 bool
112
Ralf Baechle75e71532007-02-09 17:08:58 +0000113config SYS_SUPPORTS_APM_EMULATION
114 bool
115
Linus Walleijbc581772009-09-15 17:30:37 +0100116config HAVE_TCM
117 bool
118 select GENERIC_ALLOCATOR
119
Russell Kinge119bff2010-01-10 17:23:29 +0000120config HAVE_PROC_CPU
121 bool
122
Al Viro5ea81762007-02-11 15:41:31 +0000123config NO_IOPORT
124 bool
Al Viro5ea81762007-02-11 15:41:31 +0000125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126config EISA
127 bool
128 ---help---
129 The Extended Industry Standard Architecture (EISA) bus was
130 developed as an open alternative to the IBM MicroChannel bus.
131
132 The EISA bus provided some of the features of the IBM MicroChannel
133 bus while maintaining backward compatibility with cards made for
134 the older ISA bus. The EISA bus saw limited use between 1988 and
135 1995 when it was made obsolete by the PCI bus.
136
137 Say Y here if you are building a kernel for an EISA-based machine.
138
139 Otherwise, say N.
140
141config SBUS
142 bool
143
Russell Kingf16fb1e2007-04-28 09:59:37 +0100144config STACKTRACE_SUPPORT
145 bool
146 default y
147
Nicolas Pitref76e9152008-04-24 01:31:46 -0400148config HAVE_LATENCYTOP_SUPPORT
149 bool
150 depends on !SMP
151 default y
152
Russell Kingf16fb1e2007-04-28 09:59:37 +0100153config LOCKDEP_SUPPORT
154 bool
155 default y
156
Russell King7ad1bcb2006-08-27 12:07:02 +0100157config TRACE_IRQFLAGS_SUPPORT
158 bool
159 default y
160
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161config RWSEM_GENERIC_SPINLOCK
162 bool
163 default y
164
165config RWSEM_XCHGADD_ALGORITHM
166 bool
167
David Howellsf0d1b0b2006-12-08 02:37:49 -0800168config ARCH_HAS_ILOG2_U32
169 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800170
171config ARCH_HAS_ILOG2_U64
172 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800173
Ben Dooks89c52ed2009-07-30 23:23:24 +0100174config ARCH_HAS_CPUFREQ
175 bool
176 help
177 Internal node to signify that the ARCH has CPUFREQ support
178 and that the relevant menu configurations are displayed for
179 it.
180
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
Rob Herring58af4a22012-03-20 14:33:01 -0500201config ARCH_HAS_DMA_SET_COHERENT_MASK
202 bool
203
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204config GENERIC_ISA_DMA
205 bool
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207config FIQ
208 bool
209
Rob Herring13a50452012-02-07 09:28:22 -0600210config NEED_RET_TO_USER
211 bool
212
Al Viro034d2f52005-12-19 16:27:59 -0500213config ARCH_MTD_XIP
214 bool
215
Hyok S. Choic760fc12006-03-27 15:18:50 +0100216config VECTORS_BASE
217 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900218 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100219 default DRAM_BASE if REMAP_VECTORS_TO_RAM
220 default 0x00000000
221 help
Russell King19accfd2013-07-04 11:40:32 +0100222 The base address of exception vectors. This must be two pages
223 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100224
Russell Kingdc21af92011-01-04 19:09:43 +0000225config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100226 bool "Patch physical to virtual translations at runtime" if EMBEDDED
227 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100228 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000229 depends on !ARCH_REALVIEW || !SPARSEMEM
230 help
Russell King111e9a52011-05-12 10:02:42 +0100231 Patch phys-to-virt and virt-to-phys translation functions at
232 boot and module load time according to the position of the
233 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000234
Russell King111e9a52011-05-12 10:02:42 +0100235 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100236 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000237
Russell Kingc1beced2011-08-10 10:23:45 +0100238 Only disable this option if you know that you do not require
239 this feature (eg, building a kernel for a single machine) and
240 you need to shrink the kernel to the minimal size.
241
Rob Herring01464222012-08-28 13:06:41 -0500242config NEED_MACH_GPIO_H
243 bool
244 help
245 Select this when mach/gpio.h is required to provide special
246 definitions for this platform. The need for mach/gpio.h should
247 be avoided when possible.
248
Rob Herringc334bc12012-03-04 22:03:33 -0600249config NEED_MACH_IO_H
250 bool
251 help
252 Select this when mach/io.h is required to provide special
253 definitions for this platform. The need for mach/io.h should
254 be avoided when possible.
255
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400256config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400257 bool
Russell King111e9a52011-05-12 10:02:42 +0100258 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400259 Select this when mach/memory.h is required to provide special
260 definitions for this platform. The need for mach/memory.h should
261 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400262
263config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100264 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400265 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100266 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400267 help
268 Please provide the physical address corresponding to the
269 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000270
Simon Glass87e040b2011-08-16 23:44:26 +0100271config GENERIC_BUG
272 def_bool y
273 depends on BUG
274
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275source "init/Kconfig"
276
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700277source "kernel/Kconfig.freezer"
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279menu "System Type"
280
Hyok S. Choi3c427972009-07-24 12:35:00 +0100281config MMU
282 bool "MMU-based Paged Memory Management Support"
283 default y
284 help
285 Select if you want MMU-based virtualised addressing space
286 support by paged memory management. If unsure, say 'Y'.
287
Russell Kingccf50e22010-03-15 19:03:06 +0000288#
289# The "ARM system type" choice list is ordered alphabetically by option
290# text. Please add new entries in the option alphabetic order.
291#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292choice
293 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100294 default ARCH_VERSATILE if !MMU
295 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296
Rob Herring387798b2012-09-06 13:41:12 -0500297config ARCH_MULTIPLATFORM
298 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100299 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500300 select ARM_PATCH_PHYS_VIRT
301 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600302 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500303 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600304 select SPARSE_IRQ
305 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600306
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100307config ARCH_INTEGRATOR
308 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100309 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100310 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200311 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200312 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100313 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100314 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000315 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100316 select MULTI_IRQ_HANDLER
317 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000318 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100319 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100320 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321 help
322 Support for ARM's Integrator platform.
323
324config ARCH_REALVIEW
325 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100327 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100328 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200329 select COMMON_CLK
330 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100331 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100332 select GPIO_PL061 if GPIOLIB
333 select ICST
334 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000335 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000336 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 help
338 This enables support for ARM Ltd RealView boards.
339
340config ARCH_VERSATILE
341 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100342 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100343 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100344 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100345 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100346 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100347 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900348 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000349 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000350 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000351 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100352 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100353 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100354 help
355 This enables support for ARM Ltd Versatile board.
356
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100357config ARCH_AT91
358 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100359 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100360 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100361 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500362 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500363 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800364 select PINCTRL
365 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100366 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100367 This enables support for systems based on Atmel
368 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100369
Russell King93e22562012-10-12 14:20:52 +0100370config ARCH_CLPS711X
371 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400372 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400373 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400374 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100375 select COMMON_CLK
376 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400377 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400378 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400379 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400380 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100381 help
382 Support for Cirrus Logic 711x/721x/731x based boards.
383
Russell King788c9702009-04-26 14:21:59 +0100384config ARCH_GEMINI
385 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100386 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200387 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100388 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200389 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100390 select NEED_MACH_GPIO_H
Russell King788c9702009-04-26 14:21:59 +0100391 help
392 Support for the Cortina Systems Gemini family SoCs
393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394config ARCH_EBSA110
395 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100396 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000397 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100398 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600399 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400400 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100401 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 help
403 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000404 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 Ethernet interface, two PCMCIA sockets, two serial ports and a
406 parallel port.
407
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000408config ARCH_EP93XX
409 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100410 select ARCH_HAS_HOLES_MEMORYMODEL
411 select ARCH_REQUIRE_GPIOLIB
412 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000413 select ARM_AMBA
414 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100415 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100416 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100417 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000418 help
419 This enables support for the Cirrus EP93xx series of CPUs.
420
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421config ARCH_FOOTBRIDGE
422 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000423 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000425 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200426 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600427 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400428 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000429 help
430 Support for systems based on the DC21285 companion chip
431 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100433config ARCH_NETX
434 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100435 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100436 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000437 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100438 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000439 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100440 This enables support for systems based on the Hilscher NetX Soc
441
Russell King3b938be2007-05-12 11:25:44 +0100442config ARCH_IOP13XX
443 bool "IOP13xx-based"
444 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100445 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400446 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600447 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100448 select PCI
449 select PLAT_IOP
450 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100451 help
452 Support for Intel's IOP13XX (XScale) family of processors.
453
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100454config ARCH_IOP32X
455 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100456 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100457 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000458 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500459 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600460 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100461 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100462 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000463 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100464 Support for Intel's 80219 and IOP32X (XScale) family of
465 processors.
466
467config ARCH_IOP33X
468 bool "IOP33x-based"
469 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100470 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500472 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600473 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100474 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100475 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100476 help
477 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478
Russell King3b938be2007-05-12 11:25:44 +0100479config ARCH_IXP4XX
480 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100481 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500482 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100483 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100484 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100486 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100487 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100488 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600489 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200490 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100491 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100492 help
Russell King3b938be2007-05-12 11:25:44 +0100493 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100494
Saeed Bisharaedabd382009-08-06 15:12:43 +0300495config ARCH_DOVE
496 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300497 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100498 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300499 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100500 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100501 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100502 select PINCTRL
503 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200504 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100505 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300506 help
507 Support for the Marvell Dove SoC 88AP510
508
Saeed Bishara651c74c2008-06-22 22:45:06 +0200509config ARCH_KIRKWOOD
510 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100511 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700512 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100513 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200514 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100515 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100516 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700517 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100518 select PINCTRL
519 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200520 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200521 help
522 Support for the following Marvell Kirkwood series SoCs:
523 88F6180, 88F6192 and 88F6281.
524
Russell King788c9702009-04-26 14:21:59 +0100525config ARCH_MV78XX0
526 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100528 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100529 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100530 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100531 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200532 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100533 help
534 Support for the following Marvell MV78xx0 series SoCs:
535 MV781x0, MV782x0.
536
537config ARCH_ORION5X
538 bool "Marvell Orion"
539 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700540 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100541 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100542 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100543 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100544 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200545 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100546 help
547 Support for the following Marvell Orion 5x series SoCs:
548 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
549 Orion-2 (5281), Orion-1-90 (6183).
550
551config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500552 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100553 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100554 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100555 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100556 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100557 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800558 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800559 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800560 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100561 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800562 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100563 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400564 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100565 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500566 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100567
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100568config ARCH_KS8695
569 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100570 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200571 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100572 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200573 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100574 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100575 help
576 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
577 System-on-Chip devices.
578
Russell King788c9702009-04-26 14:21:59 +0100579config ARCH_W90X900
580 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100581 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100582 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100583 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100584 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100585 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200586 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100587 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
588 At present, the w90x900 has been renamed nuc900, regarding
589 the ARM series product line, you can login the following
590 link address to know more.
591
592 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
593 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400594
Russell King93e22562012-10-12 14:20:52 +0100595config ARCH_LPC32XX
596 bool "NXP LPC32XX"
597 select ARCH_REQUIRE_GPIOLIB
598 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000599 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100600 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100601 select CPU_ARM926T
602 select GENERIC_CLOCKEVENTS
603 select HAVE_IDE
604 select HAVE_PWM
605 select USB_ARCH_HAS_OHCI
606 select USE_OF
607 help
608 Support for the NXP LPC32XX family of processors
609
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700611 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100612 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100613 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100614 select ARCH_MTD_XIP
615 select ARCH_REQUIRE_GPIOLIB
616 select ARM_CPU_SUSPEND if PM
617 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100618 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100619 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100620 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800621 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100622 select HAVE_IDE
623 select MULTI_IRQ_HANDLER
624 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800625 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800626 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000627 help
eric miao2c8086a2007-09-11 19:13:17 -0700628 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629
Russell King788c9702009-04-26 14:21:59 +0100630config ARCH_MSM
631 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700632 select ARCH_REQUIRE_GPIOLIB
Stephen Boydc6025202013-07-24 13:54:30 -0700633 select CLKSRC_OF if OF
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700634 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100635 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800636 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800637 Support for Qualcomm MSM/QSD based systems. This runs on the
638 apps processor of the MSM/QSD and depends on a shared memory
639 interface to the modem processor which runs the baseband
640 stack and controls some vital subsystems
641 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800642
Magnus Dammc793c1b2010-02-05 11:14:49 +0000643config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900644 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900645 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900646 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100647 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800648 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800649 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900650 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000651 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000652 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000653 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100654 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200655 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100656 select PM_GENERIC_DOMAINS if PM
657 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000658 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900659 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661config ARCH_RPC
662 bool "RiscPC"
663 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100664 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100665 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000666 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100667 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200668 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100669 select HAVE_PATA_PLATFORM
670 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600671 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400672 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100674 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 help
676 On the Acorn Risc-PC, Linux can support the internal IDE disk and
677 CD-ROM interface, serial and parallel port, and the floppy drive.
678
679config ARCH_SA1100
680 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100681 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100682 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700683 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100684 select ARCH_SPARSEMEM_ENABLE
685 select CLKDEV_LOOKUP
686 select CLKSRC_MMIO
687 select CPU_FREQ
688 select CPU_SA1100
689 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200690 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100691 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500692 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400693 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100694 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000695 help
696 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900698config ARCH_S3C24XX
699 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100700 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900701 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100702 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200703 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800704 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900705 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900706 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900707 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100708 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900709 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500710 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600711 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900712 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900714 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
715 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
716 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
717 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900718
Ben Dooksa08ab632008-10-21 14:06:39 +0100719config ARCH_S3C64XX
720 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100721 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900722 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100723 select ARM_VIC
724 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200725 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100726 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800727 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900728 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900729 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900730 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500732 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100733 select NO_IOPORT
734 select PLAT_SAMSUNG
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900735 select PM_GENERIC_DOMAINS
Russell Kingb1b3f492012-10-06 17:12:25 +0100736 select S3C_DEV_NAND
737 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900738 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select SAMSUNG_CLKSRC
740 select SAMSUNG_GPIOLIB_4BIT
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900741 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900742 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100744 help
745 Samsung S3C64XX series based systems
746
Kukjin Kim49b7a492010-09-07 15:47:18 +0900747config ARCH_S5P64X0
748 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900749 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200750 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100751 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900752 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900753 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900754 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900756 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500757 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900758 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100759 select SAMSUNG_WDT_RESET
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900760 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900761 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
762 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900763
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200764config ARCH_S5PC100
765 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900766 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900767 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200768 select CLKSRC_SAMSUNG_PWM
Byungho Min5a7652f2009-06-23 21:39:42 +0900769 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800770 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900771 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900772 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900773 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100774 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500775 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900776 select SAMSUNG_ATAGS
Russell King171b3f02013-09-12 21:24:42 +0100777 select SAMSUNG_WDT_RESET
Byungho Min5a7652f2009-06-23 21:39:42 +0900778 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200779 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900780
Kukjin Kim170f4e42010-02-24 16:40:44 +0900781config ARCH_S5PV210
782 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900784 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100785 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900786 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200787 select CLKSRC_SAMSUNG_PWM
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900789 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900790 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900791 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900792 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100793 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500794 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400795 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900796 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900797 help
798 Samsung S5PV210/S5PC110 series based systems
799
Kukjin Kim83014572011-11-06 13:54:56 +0900800config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100801 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100802 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900803 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900804 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100805 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900806 select ARM_GIC
Olof Johansson340fcb52013-04-26 11:47:45 -0700807 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100808 select CPU_V7
809 select GENERIC_CLOCKEVENTS
Kukjin Kim20676c12010-11-13 16:08:32 +0900810 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900811 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100812 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400813 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900814 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900815 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900816 help
Kukjin Kim83014572011-11-06 13:54:56 +0900817 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900818
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100819config ARCH_DAVINCI
820 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100821 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700822 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100823 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700824 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100825 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100826 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500828 select NEED_MACH_GPIO_H
Matt Porter3ad7a422013-03-06 11:15:31 -0500829 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530830 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100831 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100832 help
833 Support for TI's DaVinci platform.
834
Tony Lindgrena0694862013-01-11 11:24:20 -0800835config ARCH_OMAP1
836 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600837 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100838 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100839 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800840 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100841 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200842 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100843 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100844 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800845 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800846 select HAVE_IDE
847 select IRQ_DOMAIN
848 select NEED_MACH_IO_H if PCCARD
849 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100850 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800851 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800852
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853endchoice
854
Rob Herring387798b2012-09-06 13:41:12 -0500855menu "Multiple platform selection"
856 depends on ARCH_MULTIPLATFORM
857
858comment "CPU Core family selection"
859
Rob Herring387798b2012-09-06 13:41:12 -0500860config ARCH_MULTI_V4T
861 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500862 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100863 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200864 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
865 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
866 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500867
868config ARCH_MULTI_V5
869 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500870 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100871 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200872 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
873 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
874 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500875
876config ARCH_MULTI_V4_V5
877 bool
878
879config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800880 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500881 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100882 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500883
884config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800885 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500886 default y
887 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100888 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500889
890config ARCH_MULTI_V6_V7
891 bool
892
893config ARCH_MULTI_CPU_AUTO
894 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
895 select ARCH_MULTI_V5
896
897endmenu
898
Russell Kingccf50e22010-03-15 19:03:06 +0000899#
900# This is sorted alphabetically by mach-* pathname. However, plat-*
901# Kconfigs may be included either alphabetically (according to the
902# plat- suffix) or along side the corresponding mach-* source.
903#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200904source "arch/arm/mach-mvebu/Kconfig"
905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-at91/Kconfig"
907
Christian Daudt8ac49e02012-11-19 09:46:10 -0800908source "arch/arm/mach-bcm/Kconfig"
909
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600910source "arch/arm/mach-bcm2835/Kconfig"
911
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912source "arch/arm/mach-clps711x/Kconfig"
913
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300914source "arch/arm/mach-cns3xxx/Kconfig"
915
Russell King95b8f202010-01-14 11:43:54 +0000916source "arch/arm/mach-davinci/Kconfig"
917
918source "arch/arm/mach-dove/Kconfig"
919
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000920source "arch/arm/mach-ep93xx/Kconfig"
921
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922source "arch/arm/mach-footbridge/Kconfig"
923
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200924source "arch/arm/mach-gemini/Kconfig"
925
Rob Herring387798b2012-09-06 13:41:12 -0500926source "arch/arm/mach-highbank/Kconfig"
927
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928source "arch/arm/mach-integrator/Kconfig"
929
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100930source "arch/arm/mach-iop32x/Kconfig"
931
932source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
Dan Williams285f5fa2006-12-07 02:59:39 +0100934source "arch/arm/mach-iop13xx/Kconfig"
935
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936source "arch/arm/mach-ixp4xx/Kconfig"
937
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400938source "arch/arm/mach-keystone/Kconfig"
939
Russell King95b8f202010-01-14 11:43:54 +0000940source "arch/arm/mach-kirkwood/Kconfig"
941
942source "arch/arm/mach-ks8695/Kconfig"
943
Russell King95b8f202010-01-14 11:43:54 +0000944source "arch/arm/mach-msm/Kconfig"
945
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200946source "arch/arm/mach-mv78xx0/Kconfig"
947
Shawn Guo3995eb82012-09-13 19:48:07 +0800948source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800950source "arch/arm/mach-mxs/Kconfig"
951
Russell King95b8f202010-01-14 11:43:54 +0000952source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000955
Daniel Tang9851ca52013-06-11 18:40:17 +1000956source "arch/arm/mach-nspire/Kconfig"
957
Tony Lindgrend48af152005-07-10 19:58:17 +0100958source "arch/arm/plat-omap/Kconfig"
959
960source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Tony Lindgren1dbae812005-11-10 14:26:51 +0000962source "arch/arm/mach-omap2/Kconfig"
963
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400964source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400965
Rob Herring387798b2012-09-06 13:41:12 -0500966source "arch/arm/mach-picoxcell/Kconfig"
967
Russell King95b8f202010-01-14 11:43:54 +0000968source "arch/arm/mach-pxa/Kconfig"
969source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Russell King95b8f202010-01-14 11:43:54 +0000971source "arch/arm/mach-mmp/Kconfig"
972
973source "arch/arm/mach-realview/Kconfig"
974
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200975source "arch/arm/mach-rockchip/Kconfig"
976
Russell King95b8f202010-01-14 11:43:54 +0000977source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300978
Ben Dookscf383672009-11-10 00:14:58 +0000979source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100980
Rob Herring387798b2012-09-06 13:41:12 -0500981source "arch/arm/mach-socfpga/Kconfig"
982
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100983source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100984
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100985source "arch/arm/mach-sti/Kconfig"
986
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900987source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988
Ben Dooks431107e2010-01-26 10:11:04 +0900989source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100990
Kukjin Kim49b7a492010-09-07 15:47:18 +0900991source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900992
Byungho Min5a7652f2009-06-23 21:39:42 +0900993source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900994
Kukjin Kim170f4e42010-02-24 16:40:44 +0900995source "arch/arm/mach-s5pv210/Kconfig"
996
Kukjin Kim83014572011-11-06 13:54:56 +0900997source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900998
Russell King882d01f2010-03-02 23:40:15 +0000999source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000
Maxime Ripard3b526342012-11-08 12:40:16 +01001001source "arch/arm/mach-sunxi/Kconfig"
1002
Barry Song156a0992012-08-23 13:41:58 +08001003source "arch/arm/mach-prima2/Kconfig"
1004
Erik Gillingc5f80062010-01-21 16:53:02 -08001005source "arch/arm/mach-tegra/Kconfig"
1006
Russell King95b8f202010-01-14 11:43:54 +00001007source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008
Russell King95b8f202010-01-14 11:43:54 +00001009source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010
1011source "arch/arm/mach-versatile/Kconfig"
1012
Russell Kingceade892010-02-11 21:44:53 +00001013source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001014source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001015
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001016source "arch/arm/mach-virt/Kconfig"
1017
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001018source "arch/arm/mach-vt8500/Kconfig"
1019
wanzongshun7ec80dd2008-12-03 03:55:38 +01001020source "arch/arm/mach-w90x900/Kconfig"
1021
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001022source "arch/arm/mach-zynq/Kconfig"
1023
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024# Definitions to make life easier
1025config ARCH_ACORN
1026 bool
1027
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001028config PLAT_IOP
1029 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001030 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001031
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001032config PLAT_ORION
1033 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001034 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001035 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001036 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001037 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001038
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001039config PLAT_ORION_LEGACY
1040 bool
1041 select PLAT_ORION
1042
Eric Miaobd5ce432009-01-20 12:06:01 +08001043config PLAT_PXA
1044 bool
1045
Russell Kingf4b8b312010-01-14 12:48:06 +00001046config PLAT_VERSATILE
1047 bool
1048
Russell Kinge3887712010-01-14 13:30:16 +00001049config ARM_TIMER_SP804
1050 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001051 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001052 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001053
Linus Torvalds1da177e2005-04-16 15:20:36 -07001054source arch/arm/mm/Kconfig
1055
Russell King958cab02011-12-11 10:04:00 +00001056config ARM_NR_BANKS
1057 int
1058 default 16 if ARCH_EP93XX
1059 default 8
1060
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001061config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001062 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001063 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001064 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001065 help
1066 Enable support for iWMMXt context switching at run time if
1067 running on a CPU that supports it.
1068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069config XSCALE_PMU
1070 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001071 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001072 default y
1073
eric miao52108642010-12-13 09:42:34 +01001074config MULTI_IRQ_HANDLER
1075 bool
1076 help
1077 Allow each machine to specify it's own IRQ handler at run time.
1078
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001079if !MMU
1080source "arch/arm/Kconfig-nommu"
1081endif
1082
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001083config PJ4B_ERRATA_4742
1084 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1085 depends on CPU_PJ4B && MACH_ARMADA_370
1086 default y
1087 help
1088 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1089 Event (WFE) IDLE states, a specific timing sensitivity exists between
1090 the retiring WFI/WFE instructions and the newly issued subsequent
1091 instructions. This sensitivity can result in a CPU hang scenario.
1092 Workaround:
1093 The software must insert either a Data Synchronization Barrier (DSB)
1094 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1095 instruction
1096
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001097config ARM_ERRATA_326103
1098 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1099 depends on CPU_V6
1100 help
1101 Executing a SWP instruction to read-only memory does not set bit 11
1102 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1103 treat the access as a read, preventing a COW from occurring and
1104 causing the faulting task to livelock.
1105
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001106config ARM_ERRATA_411920
1107 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001108 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001109 help
1110 Invalidation of the Instruction Cache operation can
1111 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1112 It does not affect the MPCore. This option enables the ARM Ltd.
1113 recommended workaround.
1114
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001115config ARM_ERRATA_430973
1116 bool "ARM errata: Stale prediction on replaced interworking branch"
1117 depends on CPU_V7
1118 help
1119 This option enables the workaround for the 430973 Cortex-A8
1120 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1121 interworking branch is replaced with another code sequence at the
1122 same virtual address, whether due to self-modifying code or virtual
1123 to physical address re-mapping, Cortex-A8 does not recover from the
1124 stale interworking branch prediction. This results in Cortex-A8
1125 executing the new code sequence in the incorrect ARM or Thumb state.
1126 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1127 and also flushes the branch target cache at every context switch.
1128 Note that setting specific bits in the ACTLR register may not be
1129 available in non-secure mode.
1130
Catalin Marinas855c5512009-04-30 17:06:15 +01001131config ARM_ERRATA_458693
1132 bool "ARM errata: Processor deadlock when a false hazard is created"
1133 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001134 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001135 help
1136 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1137 erratum. For very specific sequences of memory operations, it is
1138 possible for a hazard condition intended for a cache line to instead
1139 be incorrectly associated with a different cache line. This false
1140 hazard might then cause a processor deadlock. The workaround enables
1141 the L1 caching of the NEON accesses and disables the PLD instruction
1142 in the ACTLR register. Note that setting specific bits in the ACTLR
1143 register may not be available in non-secure mode.
1144
Catalin Marinas0516e462009-04-30 17:06:20 +01001145config ARM_ERRATA_460075
1146 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1147 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001148 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001149 help
1150 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1151 erratum. Any asynchronous access to the L2 cache may encounter a
1152 situation in which recent store transactions to the L2 cache are lost
1153 and overwritten with stale memory contents from external memory. The
1154 workaround disables the write-allocate mode for the L2 cache via the
1155 ACTLR register. Note that setting specific bits in the ACTLR register
1156 may not be available in non-secure mode.
1157
Will Deacon9f050272010-09-14 09:51:43 +01001158config ARM_ERRATA_742230
1159 bool "ARM errata: DMB operation may be faulty"
1160 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001161 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001162 help
1163 This option enables the workaround for the 742230 Cortex-A9
1164 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1165 between two write operations may not ensure the correct visibility
1166 ordering of the two writes. This workaround sets a specific bit in
1167 the diagnostic register of the Cortex-A9 which causes the DMB
1168 instruction to behave as a DSB, ensuring the correct behaviour of
1169 the two writes.
1170
Will Deacona672e992010-09-14 09:53:02 +01001171config ARM_ERRATA_742231
1172 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1173 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001174 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001175 help
1176 This option enables the workaround for the 742231 Cortex-A9
1177 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1178 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1179 accessing some data located in the same cache line, may get corrupted
1180 data due to bad handling of the address hazard when the line gets
1181 replaced from one of the CPUs at the same time as another CPU is
1182 accessing it. This workaround sets specific bits in the diagnostic
1183 register of the Cortex-A9 which reduces the linefill issuing
1184 capabilities of the processor.
1185
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001186config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001187 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001188 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001189 help
1190 The PL310 L2 cache controller implements three types of Clean &
1191 Invalidate maintenance operations: by Physical Address
1192 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1193 They are architecturally defined to behave as the execution of a
1194 clean operation followed immediately by an invalidate operation,
1195 both performing to the same memory location. This functionality
1196 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001197 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001198
Jon Medhurst69155792013-06-07 10:35:35 +01001199config ARM_ERRATA_643719
1200 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1201 depends on CPU_V7 && SMP
1202 help
1203 This option enables the workaround for the 643719 Cortex-A9 (prior to
1204 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1205 register returns zero when it should return one. The workaround
1206 corrects this value, ensuring cache maintenance operations which use
1207 it behave as intended and avoiding data corruption.
1208
Will Deaconcdf357f2010-08-05 11:20:51 +01001209config ARM_ERRATA_720789
1210 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001211 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001212 help
1213 This option enables the workaround for the 720789 Cortex-A9 (prior to
1214 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1215 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1216 As a consequence of this erratum, some TLB entries which should be
1217 invalidated are not, resulting in an incoherency in the system page
1218 tables. The workaround changes the TLB flushing routines to invalidate
1219 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001220
Russell King1f0090a2011-03-16 23:35:25 +00001221config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001222 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001223 depends on CACHE_L2X0
1224 help
1225 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1226 operation (offset 0x7FC). This operation runs in background so that
1227 PL310 can handle normal accesses while it is in progress. Under very
1228 rare circumstances, due to this erratum, write data can be lost when
1229 PL310 treats a cacheable write transaction during a Clean &
1230 Invalidate by Way operation.
1231
Will Deacon475d92f2010-09-28 14:02:02 +01001232config ARM_ERRATA_743622
1233 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1234 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001235 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001236 help
1237 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001238 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001239 optimisation in the Cortex-A9 Store Buffer may lead to data
1240 corruption. This workaround sets a specific bit in the diagnostic
1241 register of the Cortex-A9 which disables the Store Buffer
1242 optimisation, preventing the defect from occurring. This has no
1243 visible impact on the overall performance or power consumption of the
1244 processor.
1245
Will Deacon9a27c272011-02-18 16:36:35 +01001246config ARM_ERRATA_751472
1247 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001248 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001249 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001250 help
1251 This option enables the workaround for the 751472 Cortex-A9 (prior
1252 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1253 completion of a following broadcasted operation if the second
1254 operation is received by a CPU before the ICIALLUIS has completed,
1255 potentially leading to corrupted entries in the cache or TLB.
1256
Will Deaconfa0ce402011-11-14 17:24:57 +01001257config PL310_ERRATA_753970
1258 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001259 depends on CACHE_PL310
1260 help
1261 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1262
1263 Under some condition the effect of cache sync operation on
1264 the store buffer still remains when the operation completes.
1265 This means that the store buffer is always asked to drain and
1266 this prevents it from merging any further writes. The workaround
1267 is to replace the normal offset of cache sync operation (0x730)
1268 by another offset targeting an unmapped PL310 register 0x740.
1269 This has the same effect as the cache sync operation: store buffer
1270 drain and waiting for all buffers empty.
1271
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001272config ARM_ERRATA_754322
1273 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1274 depends on CPU_V7
1275 help
1276 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1277 r3p*) erratum. A speculative memory access may cause a page table walk
1278 which starts prior to an ASID switch but completes afterwards. This
1279 can populate the micro-TLB with a stale entry which may be hit with
1280 the new ASID. This workaround places two dsb instructions in the mm
1281 switching code so that no page table walks can cross the ASID switch.
1282
Will Deacon5dab26a2011-03-04 12:38:54 +01001283config ARM_ERRATA_754327
1284 bool "ARM errata: no automatic Store Buffer drain"
1285 depends on CPU_V7 && SMP
1286 help
1287 This option enables the workaround for the 754327 Cortex-A9 (prior to
1288 r2p0) erratum. The Store Buffer does not have any automatic draining
1289 mechanism and therefore a livelock may occur if an external agent
1290 continuously polls a memory location waiting to observe an update.
1291 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1292 written polling loops from denying visibility of updates to memory.
1293
Catalin Marinas145e10e2011-08-15 11:04:41 +01001294config ARM_ERRATA_364296
1295 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001296 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001297 help
1298 This options enables the workaround for the 364296 ARM1136
1299 r0p2 erratum (possible cache data corruption with
1300 hit-under-miss enabled). It sets the undocumented bit 31 in
1301 the auxiliary control register and the FI bit in the control
1302 register, thus disabling hit-under-miss without putting the
1303 processor into full low interrupt latency mode. ARM11MPCore
1304 is not affected.
1305
Will Deaconf630c1b2011-09-15 11:45:15 +01001306config ARM_ERRATA_764369
1307 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1308 depends on CPU_V7 && SMP
1309 help
1310 This option enables the workaround for erratum 764369
1311 affecting Cortex-A9 MPCore with two or more processors (all
1312 current revisions). Under certain timing circumstances, a data
1313 cache line maintenance operation by MVA targeting an Inner
1314 Shareable memory region may fail to proceed up to either the
1315 Point of Coherency or to the Point of Unification of the
1316 system. This workaround adds a DSB instruction before the
1317 relevant cache maintenance functions and sets a specific bit
1318 in the diagnostic control register of the SCU.
1319
Will Deacon11ed0ba2011-11-14 17:24:58 +01001320config PL310_ERRATA_769419
1321 bool "PL310 errata: no automatic Store Buffer drain"
1322 depends on CACHE_L2X0
1323 help
1324 On revisions of the PL310 prior to r3p2, the Store Buffer does
1325 not automatically drain. This can cause normal, non-cacheable
1326 writes to be retained when the memory system is idle, leading
1327 to suboptimal I/O performance for drivers using coherent DMA.
1328 This option adds a write barrier to the cpu_idle loop so that,
1329 on systems with an outer cache, the store buffer is drained
1330 explicitly.
1331
Simon Horman7253b852012-09-28 02:12:45 +01001332config ARM_ERRATA_775420
1333 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1334 depends on CPU_V7
1335 help
1336 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1337 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1338 operation aborts with MMU exception, it might cause the processor
1339 to deadlock. This workaround puts DSB before executing ISB if
1340 an abort may occur on cache maintenance.
1341
Catalin Marinas93dc6882013-03-26 23:35:04 +01001342config ARM_ERRATA_798181
1343 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1344 depends on CPU_V7 && SMP
1345 help
1346 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1347 adequately shooting down all use of the old entries. This
1348 option enables the Linux kernel workaround for this erratum
1349 which sends an IPI to the CPUs that are running the same ASID
1350 as the one being invalidated.
1351
Will Deacon84b65042013-08-20 17:29:55 +01001352config ARM_ERRATA_773022
1353 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1354 depends on CPU_V7
1355 help
1356 This option enables the workaround for the 773022 Cortex-A15
1357 (up to r0p4) erratum. In certain rare sequences of code, the
1358 loop buffer may deliver incorrect instructions. This
1359 workaround disables the loop buffer to avoid the erratum.
1360
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361endmenu
1362
1363source "arch/arm/common/Kconfig"
1364
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365menu "Bus support"
1366
1367config ARM_AMBA
1368 bool
1369
1370config ISA
1371 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 help
1373 Find out whether you have ISA slots on your motherboard. ISA is the
1374 name of a bus system, i.e. the way the CPU talks to the other stuff
1375 inside your box. Other bus systems are PCI, EISA, MicroChannel
1376 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1377 newer boards don't support it. If you have ISA, say Y, otherwise N.
1378
Russell King065909b2006-01-04 15:44:16 +00001379# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380config ISA_DMA
1381 bool
Russell King065909b2006-01-04 15:44:16 +00001382 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383
Russell King065909b2006-01-04 15:44:16 +00001384# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001385config ISA_DMA_API
1386 bool
Al Viro5cae8412005-05-04 05:39:22 +01001387
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001389 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390 help
1391 Find out whether you have a PCI motherboard. PCI is the name of a
1392 bus system, i.e. the way the CPU talks to the other stuff inside
1393 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1394 VESA. If you have PCI, say Y, otherwise N.
1395
Anton Vorontsov52882172010-04-19 13:20:49 +01001396config PCI_DOMAINS
1397 bool
1398 depends on PCI
1399
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001400config PCI_NANOENGINE
1401 bool "BSE nanoEngine PCI support"
1402 depends on SA1100_NANOENGINE
1403 help
1404 Enable PCI on the BSE nanoEngine board.
1405
Matthew Wilcox36e23592007-07-10 10:54:40 -06001406config PCI_SYSCALL
1407 def_bool PCI
1408
Mike Rapoporta0113a92007-11-25 08:55:34 +01001409config PCI_HOST_ITE8152
1410 bool
1411 depends on PCI && MACH_ARMCORE
1412 default y
1413 select DMABOUNCE
1414
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001416source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417
1418source "drivers/pcmcia/Kconfig"
1419
1420endmenu
1421
1422menu "Kernel Features"
1423
Dave Martin3b556582011-12-07 15:38:04 +00001424config HAVE_SMP
1425 bool
1426 help
1427 This option should be selected by machines which have an SMP-
1428 capable CPU.
1429
1430 The only effect of this option is to make the SMP-related
1431 options available to the user for configuration.
1432
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001434 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001435 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001436 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001437 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001438 depends on MMU || ARM_MPU
Russell Kingb1b3f492012-10-06 17:12:25 +01001439 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001440 help
1441 This enables support for systems with more than one CPU. If you have
1442 a system with only one CPU, like most personal computers, say N. If
1443 you have a system with more than one CPU, say Y.
1444
1445 If you say N here, the kernel will run on single and multiprocessor
1446 machines, but will use only one CPU of a multiprocessor machine. If
1447 you say Y here, the kernel will run on many, but not all, single
1448 processor machines. On a single processor machine, the kernel will
1449 run faster if you say N here.
1450
Paul Bolle395cf962011-08-15 02:02:26 +02001451 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001452 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001453 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001454
1455 If you don't know what to do here, say N.
1456
Russell Kingf00ec482010-09-04 10:47:48 +01001457config SMP_ON_UP
1458 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001459 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001460 default y
1461 help
1462 SMP kernels contain instructions which fail on non-SMP processors.
1463 Enabling this option allows the kernel to modify itself to make
1464 these instructions safe. Disabling it allows about 1K of space
1465 savings.
1466
1467 If you don't know what to do here, say Y.
1468
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001469config ARM_CPU_TOPOLOGY
1470 bool "Support cpu topology definition"
1471 depends on SMP && CPU_V7
1472 default y
1473 help
1474 Support ARM cpu topology definition. The MPIDR register defines
1475 affinity between processors which is then used to describe the cpu
1476 topology of an ARM System.
1477
1478config SCHED_MC
1479 bool "Multi-core scheduler support"
1480 depends on ARM_CPU_TOPOLOGY
1481 help
1482 Multi-core scheduler support improves the CPU scheduler's decision
1483 making when dealing with multi-core CPU chips at a cost of slightly
1484 increased overhead in some places. If unsure say N here.
1485
1486config SCHED_SMT
1487 bool "SMT scheduler support"
1488 depends on ARM_CPU_TOPOLOGY
1489 help
1490 Improves the CPU scheduler's decision making when dealing with
1491 MultiThreading at a cost of slightly increased overhead in some
1492 places. If unsure say N here.
1493
Russell Kinga8cbcd92009-05-16 11:51:14 +01001494config HAVE_ARM_SCU
1495 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001496 help
1497 This option enables support for the ARM system coherency unit
1498
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001499config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001500 bool "Architected timer support"
1501 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001502 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001503 help
1504 This option enables support for the ARM architected timer
1505
Russell Kingf32f4ce2009-05-16 12:14:21 +01001506config HAVE_ARM_TWD
1507 bool
1508 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001509 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001510 help
1511 This options enables support for the ARM timer and watchdog unit
1512
Nicolas Pitree8db2882012-04-12 02:45:22 -04001513config MCPM
1514 bool "Multi-Cluster Power Management"
1515 depends on CPU_V7 && SMP
1516 help
1517 This option provides the common power management infrastructure
1518 for (multi-)cluster based systems, such as big.LITTLE based
1519 systems.
1520
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001521choice
1522 prompt "Memory split"
1523 default VMSPLIT_3G
1524 help
1525 Select the desired split between kernel and user memory.
1526
1527 If you are not absolutely sure what you are doing, leave this
1528 option alone!
1529
1530 config VMSPLIT_3G
1531 bool "3G/1G user/kernel split"
1532 config VMSPLIT_2G
1533 bool "2G/2G user/kernel split"
1534 config VMSPLIT_1G
1535 bool "1G/3G user/kernel split"
1536endchoice
1537
1538config PAGE_OFFSET
1539 hex
1540 default 0x40000000 if VMSPLIT_1G
1541 default 0x80000000 if VMSPLIT_2G
1542 default 0xC0000000
1543
Linus Torvalds1da177e2005-04-16 15:20:36 -07001544config NR_CPUS
1545 int "Maximum number of CPUs (2-32)"
1546 range 2 32
1547 depends on SMP
1548 default "4"
1549
Russell Kinga054a812005-11-02 22:24:33 +00001550config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001551 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001552 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001553 help
1554 Say Y here to experiment with turning CPUs off and on. CPUs
1555 can be controlled through /sys/devices/system/cpu.
1556
Will Deacon2bdd4242012-12-12 19:20:52 +00001557config ARM_PSCI
1558 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1559 depends on CPU_V7
1560 help
1561 Say Y here if you want Linux to communicate with system firmware
1562 implementing the PSCI specification for CPU-centric power
1563 management operations described in ARM document number ARM DEN
1564 0022A ("Power State Coordination Interface System Software on
1565 ARM processors").
1566
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001567# The GPIO number here must be sorted by descending number. In case of
1568# a multiplatform kernel, we just want the highest value required by the
1569# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001570config ARCH_NR_GPIO
1571 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001572 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301573 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001574 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001575 default 352 if ARCH_VT8500
1576 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001577 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001578 default 0
1579 help
1580 Maximum number of GPIOs in the system.
1581
1582 If unsure, leave the default value.
1583
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001584source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001585
Russell Kingc9218b12013-04-27 23:31:10 +01001586config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001587 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001588 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001589 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001590 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001591 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell King47d84682013-09-10 23:47:55 +01001592 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001593
1594choice
Russell King47d84682013-09-10 23:47:55 +01001595 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001596 prompt "Timer frequency"
1597
1598config HZ_100
1599 bool "100 Hz"
1600
1601config HZ_200
1602 bool "200 Hz"
1603
1604config HZ_250
1605 bool "250 Hz"
1606
1607config HZ_300
1608 bool "300 Hz"
1609
1610config HZ_500
1611 bool "500 Hz"
1612
1613config HZ_1000
1614 bool "1000 Hz"
1615
1616endchoice
1617
1618config HZ
1619 int
Russell King47d84682013-09-10 23:47:55 +01001620 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001621 default 100 if HZ_100
1622 default 200 if HZ_200
1623 default 250 if HZ_250
1624 default 300 if HZ_300
1625 default 500 if HZ_500
1626 default 1000
1627
1628config SCHED_HRTICK
1629 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001630
Russell Kingb28748f2013-02-17 14:40:33 +00001631config SCHED_HRTICK
1632 def_bool HIGH_RES_TIMERS
1633
Catalin Marinas16c79652009-07-24 12:33:02 +01001634config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001635 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001636 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001637 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001638 select AEABI
1639 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001640 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001641 help
1642 By enabling this option, the kernel will be compiled in
1643 Thumb-2 mode. A compiler/assembler that understand the unified
1644 ARM-Thumb syntax is needed.
1645
1646 If unsure, say N.
1647
Dave Martin6f685c52011-03-03 11:41:12 +01001648config THUMB2_AVOID_R_ARM_THM_JUMP11
1649 bool "Work around buggy Thumb-2 short branch relocations in gas"
1650 depends on THUMB2_KERNEL && MODULES
1651 default y
1652 help
1653 Various binutils versions can resolve Thumb-2 branches to
1654 locally-defined, preemptible global symbols as short-range "b.n"
1655 branch instructions.
1656
1657 This is a problem, because there's no guarantee the final
1658 destination of the symbol, or any candidate locations for a
1659 trampoline, are within range of the branch. For this reason, the
1660 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1661 relocation in modules at all, and it makes little sense to add
1662 support.
1663
1664 The symptom is that the kernel fails with an "unsupported
1665 relocation" error when loading some modules.
1666
1667 Until fixed tools are available, passing
1668 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1669 code which hits this problem, at the cost of a bit of extra runtime
1670 stack usage in some cases.
1671
1672 The problem is described in more detail at:
1673 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1674
1675 Only Thumb-2 kernels are affected.
1676
1677 Unless you are sure your tools don't have this problem, say Y.
1678
Catalin Marinas0becb082009-07-24 12:32:53 +01001679config ARM_ASM_UNIFIED
1680 bool
1681
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001682config AEABI
1683 bool "Use the ARM EABI to compile the kernel"
1684 help
1685 This option allows for the kernel to be compiled using the latest
1686 ARM ABI (aka EABI). This is only useful if you are using a user
1687 space environment that is also compiled with EABI.
1688
1689 Since there are major incompatibilities between the legacy ABI and
1690 EABI, especially with regard to structure member alignment, this
1691 option also changes the kernel syscall calling convention to
1692 disambiguate both ABIs and allow for backward compatibility support
1693 (selected with CONFIG_OABI_COMPAT).
1694
1695 To use this you need GCC version 4.0.0 or later.
1696
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001697config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001698 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001699 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001700 default y
1701 help
1702 This option preserves the old syscall interface along with the
1703 new (ARM EABI) one. It also provides a compatibility layer to
1704 intercept syscalls that have structure arguments which layout
1705 in memory differs between the legacy ABI and the new ARM EABI
1706 (only for non "thumb" binaries). This option adds a tiny
1707 overhead to all syscalls and produces a slightly larger kernel.
1708 If you know you'll be using only pure EABI user space then you
1709 can say N here. If this option is not selected and you attempt
1710 to execute a legacy ABI binary then the result will be
1711 UNPREDICTABLE (in fact it can be predicted that it won't work
1712 at all). If in doubt say Y.
1713
Mel Gormaneb335752009-05-13 17:34:48 +01001714config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001715 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001716
Russell King05944d72006-11-30 20:43:51 +00001717config ARCH_SPARSEMEM_ENABLE
1718 bool
1719
Russell King07a2f732008-10-01 21:39:58 +01001720config ARCH_SPARSEMEM_DEFAULT
1721 def_bool ARCH_SPARSEMEM_ENABLE
1722
Russell King05944d72006-11-30 20:43:51 +00001723config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001724 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001725
Will Deacon7b7bf492011-05-19 13:21:14 +01001726config HAVE_ARCH_PFN_VALID
1727 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1728
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001729config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001730 bool "High Memory Support"
1731 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001732 help
1733 The address space of ARM processors is only 4 Gigabytes large
1734 and it has to accommodate user address space, kernel address
1735 space as well as some memory mapped IO. That means that, if you
1736 have a large amount of physical memory and/or IO, not all of the
1737 memory can be "permanently mapped" by the kernel. The physical
1738 memory that is not permanently mapped is called "high memory".
1739
1740 Depending on the selected kernel/user memory split, minimum
1741 vmalloc space and actual amount of RAM, you may not need this
1742 option which should result in a slightly faster kernel.
1743
1744 If unsure, say n.
1745
Russell King65cec8e2009-08-17 20:02:06 +01001746config HIGHPTE
1747 bool "Allocate 2nd-level pagetables from highmem"
1748 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001749
Jamie Iles1b8873a2010-02-02 20:25:44 +01001750config HW_PERF_EVENTS
1751 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001752 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001753 default y
1754 help
1755 Enable hardware performance counter support for perf events. If
1756 disabled, perf events will use software events only.
1757
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001758config SYS_SUPPORTS_HUGETLBFS
1759 def_bool y
1760 depends on ARM_LPAE
1761
Catalin Marinas8d962502012-07-25 14:39:26 +01001762config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1763 def_bool y
1764 depends on ARM_LPAE
1765
Steven Capper4bfab202013-07-26 14:58:22 +01001766config ARCH_WANT_GENERAL_HUGETLB
1767 def_bool y
1768
Dave Hansen3f22ab22005-06-23 00:07:43 -07001769source "mm/Kconfig"
1770
Magnus Dammc1b2d972010-07-05 10:00:11 +01001771config FORCE_MAX_ZONEORDER
1772 int "Maximum zone order" if ARCH_SHMOBILE
1773 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001774 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001775 default "9" if SA1111
1776 default "11"
1777 help
1778 The kernel memory allocator divides physically contiguous memory
1779 blocks into "zones", where each zone is a power of two number of
1780 pages. This option selects the largest power of two that the kernel
1781 keeps in the memory allocator. If you need to allocate very large
1782 blocks of physically contiguous memory, then you may need to
1783 increase this value.
1784
1785 This config option is actually maximum order plus one. For example,
1786 a value of 11 means that the largest free memory block is 2^10 pages.
1787
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788config ALIGNMENT_TRAP
1789 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001790 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001792 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001793 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001794 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1796 address divisible by 4. On 32-bit ARM processors, these non-aligned
1797 fetch/store instructions will be emulated in software if you say
1798 here, which has a severe performance impact. This is necessary for
1799 correct operation of some network protocols. With an IP-only
1800 configuration it is safe to say N, otherwise say Y.
1801
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001802config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001803 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1804 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001805 default y if CPU_FEROCEON
1806 help
1807 Implement faster copy_to_user and clear_user methods for CPU
1808 cores where a 8-word STM instruction give significantly higher
1809 memory write throughput than a sequence of individual 32bit stores.
1810
1811 A possible side effect is a slight increase in scheduling latency
1812 between threads sharing the same address space if they invoke
1813 such copy operations with large buffers.
1814
1815 However, if the CPU data cache is using a write-allocate mode,
1816 this option is unlikely to provide any performance gain.
1817
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001818config SECCOMP
1819 bool
1820 prompt "Enable seccomp to safely compute untrusted bytecode"
1821 ---help---
1822 This kernel feature is useful for number crunching applications
1823 that may need to compute untrusted bytecode during their
1824 execution. By using pipes or other transports made available to
1825 the process as file descriptors supporting the read/write
1826 syscalls, it's possible to isolate those applications in
1827 their own address space using seccomp. Once seccomp is
1828 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1829 and the task is only allowed to execute a few safe syscalls
1830 defined by each seccomp mode.
1831
Nicolas Pitrec743f382010-05-24 23:55:42 -04001832config CC_STACKPROTECTOR
1833 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1834 help
1835 This option turns on the -fstack-protector GCC feature. This
1836 feature puts, at the beginning of functions, a canary value on
1837 the stack just before the return address, and validates
1838 the value just before actually returning. Stack based buffer
1839 overflows (that need to overwrite this return address) now also
1840 overwrite the canary, which gets detected and the attack is then
1841 neutralized via a kernel panic.
1842 This feature requires gcc version 4.2 or above.
1843
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001844config XEN_DOM0
1845 def_bool y
1846 depends on XEN
1847
1848config XEN
1849 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001850 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001851 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001852 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001853 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001854 help
1855 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1856
Linus Torvalds1da177e2005-04-16 15:20:36 -07001857endmenu
1858
1859menu "Boot options"
1860
Grant Likely9eb8f672011-04-28 14:27:20 -06001861config USE_OF
1862 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001863 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001864 select OF
1865 select OF_EARLY_FLATTREE
1866 help
1867 Include support for flattened device tree machine descriptions.
1868
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001869config ATAGS
1870 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1871 default y
1872 help
1873 This is the traditional way of passing data to the kernel at boot
1874 time. If you are solely relying on the flattened device tree (or
1875 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1876 to remove ATAGS support from your kernel binary. If unsure,
1877 leave this to y.
1878
1879config DEPRECATED_PARAM_STRUCT
1880 bool "Provide old way to pass kernel parameters"
1881 depends on ATAGS
1882 help
1883 This was deprecated in 2001 and announced to live on for 5 years.
1884 Some old boot loaders still use this way.
1885
Linus Torvalds1da177e2005-04-16 15:20:36 -07001886# Compressed boot loader in ROM. Yes, we really want to ask about
1887# TEXT and BSS so we preserve their values in the config files.
1888config ZBOOT_ROM_TEXT
1889 hex "Compressed ROM boot loader base address"
1890 default "0"
1891 help
1892 The physical address at which the ROM-able zImage is to be
1893 placed in the target. Platforms which normally make use of
1894 ROM-able zImage formats normally set this to a suitable
1895 value in their defconfig file.
1896
1897 If ZBOOT_ROM is not enabled, this has no effect.
1898
1899config ZBOOT_ROM_BSS
1900 hex "Compressed ROM boot loader BSS address"
1901 default "0"
1902 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001903 The base address of an area of read/write memory in the target
1904 for the ROM-able zImage which must be available while the
1905 decompressor is running. It must be large enough to hold the
1906 entire decompressed kernel plus an additional 128 KiB.
1907 Platforms which normally make use of ROM-able zImage formats
1908 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001909
1910 If ZBOOT_ROM is not enabled, this has no effect.
1911
1912config ZBOOT_ROM
1913 bool "Compressed boot loader in ROM/flash"
1914 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1915 help
1916 Say Y here if you intend to execute your compressed kernel image
1917 (zImage) directly from ROM or flash. If unsure, say N.
1918
Simon Horman090ab3f2011-04-26 06:29:53 +01001919choice
1920 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001921 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001922 default ZBOOT_ROM_NONE
1923 help
1924 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001925 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001926 kernel image to an MMC or SD card and boot the kernel straight
1927 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001928 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001929 rest the kernel image to RAM.
1930
1931config ZBOOT_ROM_NONE
1932 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1933 help
1934 Do not load image from SD or MMC
1935
Simon Hormanf45b1142011-01-11 04:01:08 +01001936config ZBOOT_ROM_MMCIF
1937 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001938 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001939 Load image from MMCIF hardware block.
1940
1941config ZBOOT_ROM_SH_MOBILE_SDHI
1942 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1943 help
1944 Load image from SDHI hardware block
1945
1946endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001947
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001948config ARM_APPENDED_DTB
1949 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001950 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001951 help
1952 With this option, the boot code will look for a device tree binary
1953 (DTB) appended to zImage
1954 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1955
1956 This is meant as a backward compatibility convenience for those
1957 systems with a bootloader that can't be upgraded to accommodate
1958 the documented boot protocol using a device tree.
1959
1960 Beware that there is very little in terms of protection against
1961 this option being confused by leftover garbage in memory that might
1962 look like a DTB header after a reboot if no actual DTB is appended
1963 to zImage. Do not leave this option active in a production kernel
1964 if you don't intend to always append a DTB. Proper passing of the
1965 location into r2 of a bootloader provided DTB is always preferable
1966 to this option.
1967
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001968config ARM_ATAG_DTB_COMPAT
1969 bool "Supplement the appended DTB with traditional ATAG information"
1970 depends on ARM_APPENDED_DTB
1971 help
1972 Some old bootloaders can't be updated to a DTB capable one, yet
1973 they provide ATAGs with memory configuration, the ramdisk address,
1974 the kernel cmdline string, etc. Such information is dynamically
1975 provided by the bootloader and can't always be stored in a static
1976 DTB. To allow a device tree enabled kernel to be used with such
1977 bootloaders, this option allows zImage to extract the information
1978 from the ATAG list and store it at run time into the appended DTB.
1979
Genoud Richardd0f34a12012-06-26 16:37:59 +01001980choice
1981 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1982 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1983
1984config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1985 bool "Use bootloader kernel arguments if available"
1986 help
1987 Uses the command-line options passed by the boot loader instead of
1988 the device tree bootargs property. If the boot loader doesn't provide
1989 any, the device tree bootargs property will be used.
1990
1991config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1992 bool "Extend with bootloader kernel arguments"
1993 help
1994 The command-line arguments provided by the boot loader will be
1995 appended to the the device tree bootargs property.
1996
1997endchoice
1998
Linus Torvalds1da177e2005-04-16 15:20:36 -07001999config CMDLINE
2000 string "Default kernel command string"
2001 default ""
2002 help
2003 On some architectures (EBSA110 and CATS), there is currently no way
2004 for the boot loader to pass arguments to the kernel. For these
2005 architectures, you should supply some command-line options at build
2006 time by entering them here. As a minimum, you should specify the
2007 memory size and the root device (e.g., mem=64M root=/dev/nfs).
2008
Victor Boivie4394c122011-05-04 17:07:55 +01002009choice
2010 prompt "Kernel command line type" if CMDLINE != ""
2011 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002012 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002013
2014config CMDLINE_FROM_BOOTLOADER
2015 bool "Use bootloader kernel arguments if available"
2016 help
2017 Uses the command-line options passed by the boot loader. If
2018 the boot loader doesn't provide any, the default kernel command
2019 string provided in CMDLINE will be used.
2020
2021config CMDLINE_EXTEND
2022 bool "Extend bootloader kernel arguments"
2023 help
2024 The command-line arguments provided by the boot loader will be
2025 appended to the default kernel command string.
2026
Alexander Holler92d20402010-02-16 19:04:53 +01002027config CMDLINE_FORCE
2028 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002029 help
2030 Always use the default kernel command string, even if the boot
2031 loader passes other arguments to the kernel.
2032 This is useful if you cannot or don't want to change the
2033 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002034endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002035
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036config XIP_KERNEL
2037 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002038 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039 help
2040 Execute-In-Place allows the kernel to run from non-volatile storage
2041 directly addressable by the CPU, such as NOR flash. This saves RAM
2042 space since the text section of the kernel is not loaded from flash
2043 to RAM. Read-write sections, such as the data section and stack,
2044 are still copied to RAM. The XIP kernel is not compressed since
2045 it has to run directly from flash, so it will take more space to
2046 store it. The flash address used to link the kernel object files,
2047 and for storing it, is configuration dependent. Therefore, if you
2048 say Y here, you must know the proper physical address where to
2049 store the kernel image depending on your own flash memory usage.
2050
2051 Also note that the make target becomes "make xipImage" rather than
2052 "make zImage" or "make Image". The final kernel binary to put in
2053 ROM memory will be arch/arm/boot/xipImage.
2054
2055 If unsure, say N.
2056
2057config XIP_PHYS_ADDR
2058 hex "XIP Kernel Physical Location"
2059 depends on XIP_KERNEL
2060 default "0x00080000"
2061 help
2062 This is the physical address in your flash memory the kernel will
2063 be linked for and stored to. This address is dependent on your
2064 own flash usage.
2065
Richard Purdiec587e4a2007-02-06 21:29:00 +01002066config KEXEC
2067 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002068 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002069 help
2070 kexec is a system call that implements the ability to shutdown your
2071 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002072 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002073 you can start any kernel with it, not just Linux.
2074
2075 It is an ongoing process to be certain the hardware in a machine
2076 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02002077 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01002078
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002079config ATAGS_PROC
2080 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002081 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002082 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002083 help
2084 Should the atags used to boot the kernel be exported in an "atags"
2085 file in procfs. Useful with kexec.
2086
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002087config CRASH_DUMP
2088 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002089 help
2090 Generate crash dump after being started by kexec. This should
2091 be normally only set in special crash dump kernels which are
2092 loaded in the main kernel with kexec-tools into a specially
2093 reserved region and then later executed after a crash by
2094 kdump/kexec. The crash dump kernel must be compiled to a
2095 memory address not used by the main kernel
2096
2097 For more details see Documentation/kdump/kdump.txt
2098
Eric Miaoe69edc792010-07-05 15:56:50 +02002099config AUTO_ZRELADDR
2100 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002101 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002102 help
2103 ZRELADDR is the physical address where the decompressed kernel
2104 image will be placed. If AUTO_ZRELADDR is selected, the address
2105 will be determined at run-time by masking the current IP with
2106 0xf8000000. This assumes the zImage being placed in the first 128MB
2107 from start of memory.
2108
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109endmenu
2110
Russell Kingac9d7ef2008-08-18 17:26:00 +01002111menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112
Ben Dooks89c52ed2009-07-30 23:23:24 +01002113if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002115endif
2116
Russell Kingac9d7ef2008-08-18 17:26:00 +01002117source "drivers/cpuidle/Kconfig"
2118
2119endmenu
2120
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121menu "Floating point emulation"
2122
2123comment "At least one emulation must be selected"
2124
2125config FPE_NWFPE
2126 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002127 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128 ---help---
2129 Say Y to include the NWFPE floating point emulator in the kernel.
2130 This is necessary to run most binaries. Linux does not currently
2131 support floating point hardware so you need to say Y here even if
2132 your machine has an FPA or floating point co-processor podule.
2133
2134 You may say N here if you are going to load the Acorn FPEmulator
2135 early in the bootup.
2136
2137config FPE_NWFPE_XP
2138 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002139 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 help
2141 Say Y to include 80-bit support in the kernel floating-point
2142 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2143 Note that gcc does not generate 80-bit operations by default,
2144 so in most cases this option only enlarges the size of the
2145 floating point emulator without any good reason.
2146
2147 You almost surely want to say N here.
2148
2149config FPE_FASTFPE
2150 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002151 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152 ---help---
2153 Say Y here to include the FAST floating point emulator in the kernel.
2154 This is an experimental much faster emulator which now also has full
2155 precision for the mantissa. It does not support any exceptions.
2156 It is very simple, and approximately 3-6 times faster than NWFPE.
2157
2158 It should be sufficient for most programs. It may be not suitable
2159 for scientific calculations, but you have to check this for yourself.
2160 If you do not feel you need a faster FP emulation you should better
2161 choose NWFPE.
2162
2163config VFP
2164 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002165 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166 help
2167 Say Y to include VFP support code in the kernel. This is needed
2168 if your hardware includes a VFP unit.
2169
2170 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2171 release notes and additional status information.
2172
2173 Say N if your target does not have VFP hardware.
2174
Catalin Marinas25ebee02007-09-25 15:22:24 +01002175config VFPv3
2176 bool
2177 depends on VFP
2178 default y if CPU_V7
2179
Catalin Marinasb5872db2008-01-10 19:16:17 +01002180config NEON
2181 bool "Advanced SIMD (NEON) Extension support"
2182 depends on VFPv3 && CPU_V7
2183 help
2184 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2185 Extension.
2186
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002187config KERNEL_MODE_NEON
2188 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002189 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002190 help
2191 Say Y to include support for NEON in kernel mode.
2192
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193endmenu
2194
2195menu "Userspace binary formats"
2196
2197source "fs/Kconfig.binfmt"
2198
2199config ARTHUR
2200 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002201 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002202 help
2203 Say Y here to include the kernel code necessary if you want to run
2204 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2205 experimental; if this sounds frightening, say N and sleep in peace.
2206 You can also say M here to compile this support as a module (which
2207 will be called arthur).
2208
2209endmenu
2210
2211menu "Power management options"
2212
Russell Kingeceab4a2005-11-15 11:31:41 +00002213source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002214
Johannes Bergf4cb5702007-12-08 02:14:00 +01002215config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002216 depends on !ARCH_S5PC100
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002217 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002218 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002219 def_bool y
2220
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002221config ARM_CPU_SUSPEND
2222 def_bool PM_SLEEP
2223
Linus Torvalds1da177e2005-04-16 15:20:36 -07002224endmenu
2225
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002226source "net/Kconfig"
2227
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002228source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002229
2230source "fs/Kconfig"
2231
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232source "arch/arm/Kconfig.debug"
2233
2234source "security/Kconfig"
2235
2236source "crypto/Kconfig"
2237
2238source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002239
2240source "arch/arm/kvm/Kconfig"